There are quite a lot of design problems in this prototype, but I very much like the idea. And the fact that you put this together yourself with minimal tools. I'm looking forward to the next iteration of your engine. Good luck!
hi i have lost the access to the original account ... but yes you are right there are lots of problems ... now i have recently purchased some machinery and am working on a new project i will post it on this account one I'm done ...
I REALLY LIKE THIS ENGINE IDEA!!! not the strongest or most reliable (seals will wear) but wery simple and easy to maintain, but in your current prototype, I find 5 problem... please don't give up with this engine yet. 1: as you already told, the ports. I think they are too small and act as air pump slowing the rotor. Also I prefer 180 Dec angle between them because it will releaf stress from bearing. 2: the fuel get mixed the air too early and might "wet" the plug when rotor finally shoves heterogenetic mixture in to combustion chamber. I think this is the 2nd bigest problem.(I would consider fuel injection... like in old tractors) 3: 2 spring just isn't enough... as you told... it backfires back in to the carburator, wich might also explains unreliable ignition. (3 phase rotor would be nice, 4 might not have enough air to fill chamber completely) 4: the air is escaping around rotor seals results as drop in presure. (you noticed exhaust coming from bearings) 5: there is no wheel. Please, Install it. It will make a LOT easier to test prototype with heavy flywheel. After all, that is a prototype... a LOT of friction. You need to store power somewhere to make it to be able to get next cycle on it's own.(rotor is not going to be enough) just some suggestions. Keep it up, it is not far away from working. p.s. I didn't read other comments. So... i might have told same ideas that others have already have told you. With engineering passion - engineer student from Finland :D
i ve lost the access to the original account .. thank you for the input.. at the time ive put that engine on hold i felt like i needed a bit of better machinery in order to produce one with a slightly better tolerances ... now to your concerns ... things that ive figured out over these few years ... 1. the ports ... the intake and exhaust ports are a bit small ... how ever one of the issues is the port from the combustion chamber to the working chamber . that port is too big... the idea is to make it work like a potato cannon except pushing the plate around instead of the potato... 2 the fuel mixture ... i have realized that that was one of the main issues as far as having it fire reliably .... i have tested it on both the oxy/acetylene mixture and propane which sadly bot of them did not provide enough fuel flow to keep up with the intake .... now what worked better is when took a blow torch and heated the whole engine assembly up ... I've got a quite a bit more reliable firing but ... still no go as far as it actually running ... 3... the springs ... as far as the seals on the hills the little brass ones ... they do a decent job of sealing and separating the chambers ... now one of the bigger issues is that the combusted gas goes through the side of the rotor where ideally the rotor face and the side plate should be in a very close tolerance i have a bit of a wobble ... which allow a 0.05- 0.4 mm gap between the side and the rotor ... now if you multiply that by the half of a circumference ... its a big gap ..so pressurized gas blows some of the fuel mixture out and messes with the air to fuel ratio which again prevented it from firing reliably ... well either way thank you for your input you gave me some more things to think about ...
That should encourage you start chasing your own dream. Target: the day my wife declared that our basement was the biggest junkyard in the whole world !!!
You guys did a great job, better than most! Go for it, get it kicking out some RPM and screaming. You started it and got a lot done, HELL I'm still waiting to start most of my projects.
The seals will probably be your greatest challenge, as it was for the Wankel engineers. That's very nice work on your prototype, given the tools you have to work with. I can't wait to see this engine run after you have improved it! Thanks for sharing!
Keep it up guys. You will never get anywhere without trying. A cheap solution for the crank seals would be Teflon washers until you can progress further with intricate machining and seal designs. Lawn mower ignition coil and trigger will provide better spark. You are almost there.... Hang on till the end
i would like to remind you guys that this prototype is working the way it is only because of very poor execution of the parts .... the prototype is made on a 300$ lathe and bench sender.
nikita surgay No need to remind us - anyone with even the smallest bit of mechanical knowledge had an "Oh wow" moment when you showed us how it worked, and we know the problems lay in imprecise engineering. This engine is going to be absolutely incredible, seems MUCH simpler and easier to service than a Wankel. I can't wait to see the next incarnation of it!
David Wisniewski Yes i agree. if this is a success we got a new "Nikita rotory rotor engine" lol. Good Luck and i hope to see your success in the news reports in the future (Im serious about everything i said. good luck :D )
i like it . but there is a lot to think about. concerning the inability of the springs to have a smoth syncronic response at all fq. you will need to maby divert exhaust to drive the widget piston instead of a spring , or in conjuction with a spring. or a spring and a cam rod. or a moving weight as part of widget piston.
Good idea but there are a few things that would help . 1 : You need to taper the first 1/3 of the leading edge on those veins to push those seals smoother you have plenty of material and only about 6-8 millimeters in from the edge should be enough to push those seals in smoother . 2 : By eliminating that external expansion chamber ( there's already one built in to the housing ) you should almost if not more double the horsepower . 3 : Back to those veins I see you have 2 but 1 is welded into place if you take that weld off add a third that would give you less rotation between ignition points . 4 : drill some holes through/shave down some that barrel you don't need all that mass .
Great, congrats... This is the first Vid I see something serious about this tech. Others speak so much and not even a real proof of something. You'll do great. I trust you
Nice work! Keep it up. Works great for a 1st phase prototype. Make the appropriate changes and continue to make newer prototypes to learn more from trial and error.
Good idea guys. Keep improving it! I had this idea for 25 years but never built one. I am glad you did. My version is slightly different dough. My version has no compression stroke, rather I use an combination of a Screw type super-charger and a turbo to provide two stage external compression to the Expander portion which you have built. The opening slope has to be more gradual than what you have. You must be loosing pressure there. And ditch the combustion chamber. You can put the spark-plug into the rotary housing, right after the high pressure charging/intake port. But make the housing the negative electrode and the center + electrode has to be flush with the housing. Let me know if you have any questions I am glad to help to develop this thing. Good luck. :0) Good Job too.
Good idea. But it think the combustion chamber is too large. It doesn't allow for enough compression at the time of ignition to create the power necessary to drive the motor. Keep trying!
hi i have lost the access to the original account ... now one of the main attractive features of this design is the fact that there is no compression .. this engine ideally should work like a potato cannon except instead of launching a potato it would push on the and spin the rotor ... yes the rpm will never bee high. and yes there is never going to be a lot of torque .... however the efficiency should be pretty high ...
This is nice thinking, but you lack a means to seal the outlet side of the combustion chamber, so the gases do not actually compress, they just flow into the expansion side. This is why it will not start. In a typical piston engine, the air-fuel mixture will not ignite from a spark if the compression is too low. You achieve essentially zero compression. But don't give up.
Ingenious! Your first running problem is with the valve. You should try and mechanically activate it. It still needs some redesigning but your going the right way. I cant wait until you get it running right. I want to buy one.
Why is this downvoted? Dude tried to make an engine. That’s pretty cool even if it has flaws. I guarantee I cannot put up good drywall but I sure might film it and be proud!
the thing is, when you put up drywall, you erect the frame first. or have one pre-made. this is more akin to erecting the drywall, then attempting to build the frame for it afterwards... missing a vital aspect, a fundamental basic being overlooked...
I looked into this design about 20 years ago after taking apart a rotary refrigeration compressor & getting inspiration. When I delved deeper I found that there was a guy from Rochester NY back in the 30s that built one & put it in a motorcycle & rode around on it for a while. He concluded that the parts wore out too quickly & took it no further. However, that's not to say it couldn't be further developed today, what with modern materials. Good luck :-)
Working yet or not, with what you had to make it so far is great work and skill. I for one would be very interested to see you get there in the end. Keep going, I'm sure you will get it working well.
Молодцы! Вот бы Вашу активность людям в должностях!!!! Не бросайте свое дело. Решение компрессии в вашем случае неудачно, да Вы и сами это поняли. Ищите способ компрессии.
Keep up the good work, don't get discouraged. It looks like a promising design , the only issue I see is the sealing ,especially the sides of the rotor.
God job guys, that probably took alot of effort. It isnt easy getting a result like that With basic Tools and materials. I bet you had fun making and tinkering With it. This is also a great way to learn and explore alternative engine concepts. Keep it up guys - hope you will make more videos like this.Greetings from Norway :)
Any updates on this? My brother had an extremely similar idea more than 15 years ago. His design is a bit different though, but the principle behind it is almost the same. He didn't pursue it though, I was amazed by how similar this is to his and sent thr video to him.
Interesting concept. It doesn't look like it would very efficient due to what appears to be a low compression ratio but you might be on to something. Have you thought about adding another bar to the opposite side of the rotor or maybe changing the dimensions of the hills (especially the angel of the downhill side, looks a little steep) and/or the dimensions of the compression bar (maybe round the outer most edges to make a smoother contact surface?).
have you got the engine working? i think this would work, with better manufacturing, and a little re-design of the ramp angles in the chambers. i would really like to see the engine running on its own.
Keep at it! :Love to see it running and revving under its own power. Apply for a grant or get a sponsor to get a machine shop to build the parts. Be careful what agreement you sign, however, use a lawyer so you retain all rights to every part and whole engine itself.
I believe that you need more vanes or sweepers, 3 maybe 4 of them. I believe that your that your combustion chamber needs to be in the round cylinder its self not in a separate compartment. Also a heavy flywheel would really make a difference, as the inertia that in would store can help the motor complete a rotation along with making it run smoother. Keep up the work
very good work done. have you got it working. I can see that the combustion chamber would expand the compressed air-fuel mixture., such that the pressure probably goes below 8 bar. below this pressure, the conventional spark plug gap of 0.8 mm. at 2 KV would not ignite the fuel-air mixture. one solution is to open up the spark plug gaps to 1.6 mm. and the spark voltage to 10 KV. also a richer mixture. Else, minimize the volume of the combustion chamber. I have built a similar vane type engine, and found that the vanes get the greater centrifugal energy the faster it runs, and the resulting pressure of the vanes against the walls creates its own braking effect. I would be lucky to see the rotation beyond 1000 rpm. At this rpm, the pressure built up is low due to leakages. Thus the self cancellation effect. Try fitting the Mazda Wankel ceramic seals on the tips of your vanes.
Very good effort, tho the seals/rotor will self destruct rather quickly with such steep ramps if it every did run, there is also a huge potential for rather large drop in pressure as rotor reaches the combustion chamber making it less likely to exhaust and pull in new charge on intake. But I have to say it is a very cool idea and you guys did a great job with minimum tooling. Keep up the good work and take everything you've learned from this prototype and include it into the next build.
the problem of your engine is the combustion chamber. when you push the misture in the combustion chamber it is exeting right away for the expeansion chaber, thats why you dont have an "explosion", because the mixture is not compressed. grettings from portugal!
Interesting concept - keep at it guys. As mentioned earlier it looks like the combustion chamber design is more an issue than overall leakage. The gases will need to be more compressed before any useful work can be made of the ignited mixture. Maybe smaller exit holes - have a look at indirect diesels where they have a separate combustion chamber which then feeds the cylinder - the holes can be quite small. I think Honda Civics used a similar design in their lean burn petrol engines in the eighties.
I'm impressed with your concept. Looks like your team has put alot of work into this. Will both gates on the rotor be employed, eventually? I cant wait to see it in an operational demonstation. Great job great thinking! Keep building and inventing.
It actually would fire considering the part tolerances, at appears that is actually not the issue. The problem is when you have the fuel/air mixture forced into that combustion chamber, the gasses are simply exiting on the other side of that seal plate, before it has a chance to get on the other side of the combustion chamber exit holes and thus seal for expanding gasses. Even with both seal plates installed, you still have a majority of the fuel/air mixture exiting out of the engine, on the aft side of the seal plate.You would have to install some kind of valve or reed valve activated by the rotation of the rotor to only allow the gasses to exit the combustion chamber when it is necessary. Hope this helps! Very impressive though
Nice work even if it does not start ! Cheers from Brussels ! Have you ever think to make a smaller combustion chamber (the cover with the spark plug screwed)? Yours seem way too big for a good compression... At this point of your work it should not be difficult to try to make a smaller combustion chamber. And you need intake valve as well to keep the pressure insine the combustion chamber. But I repeat : great work ! none motor on this earth had start on the first time, so keep it close to your mind dude I really think you are pretty close of womething very good. You have to calculate your compression ratio to do it nice. Regards. Fernando
I think You and me are not the only ones who have tried to design it this way, but this design got a lot of issues I've been awere of on design stage when I had the concept for the first time. I have sorted most of the issues, but still don't hava the final solution, but I'm still far ahead designwise, although I do not even bother to build prototypes that I know that won't last for long or will have tremendous wear and power losses. Anyway as many of us think about this kind of things some of us will succeed soon and release an engine that will wipe of the surface of the earth classic piston engines. I got already a few different projects, but one very complicated to produce - frictionless design ;-)
Congratulations, I'm always happy to see fellow inventors getting their hands dirty. Here is a piece of advice in case you're expecting to sell it: unless you're capable of turning it into a product you can sell directly to customers, you're facing a tough path ahead. Vehicle companies aren't buying new technology; existing designs are profitable enough for they not to care. So, in case you manage to solve all technical problems, I'd suggest you a commercial application: an autonomous electric power plant. -Miguel
I'm sure everyone has pointed out the timing is the main issue. research your geometry and spend more energy to calculate precise spark and a way to advance it. great work !
Great work... definatly a unique design. I think it should work. You can hear that it IS firing... and you can see the way the drill is moving that there is some power being made. Maybe try a heavier flywheel... on the opposite side of the drill, most engines wont run without some mass to get them around to the next "stroke" Great job guys. Keep up the good work.
I love to troubleshoot problems and you should connect a compression test gauge so can see how much Actual compression pressure it achieves?You need at least 5-6-7 Lbs and that spring loaded seal “plate” might give you problems during extreme Heat!Spring steel with the low carbon don’t really do well but obviously you are an intelligent person bilingual in English&Russian is pretty cool.Holiday in the US when you get more fluid speech and come here to test your self!Good Luck and Never give up on development of this idea.”Keep on Keepin on,”
I came up with this same design more than 20 years ago and found it to be unsound for any real power. But you are doing a good job on your execution. At least it works. the problem is you will have to come up with better ways of sealing. It will end up having to be close to a wankel engine and thus will be prone to the same problems.
An here i am thinking im the best builder in the world smmhhh, youtube has made me realise my place, i always thought i was smarter than all the myth buster guys cuz allot of things theyve done and tested i have done my entire life since i was 4, now after watchimg youtube videos you start to see all this talent that was undiscovered before cuz only famouse people got to show off there skills to masses of people. Im so glad youtube allows us to see people like this who have drive, and are facinated with engineering.
That vane is going to slam into the rise of the 'hill' at some 80 fps and the thing isn't going to run longer than a minute. That's not counting the centrifugal force holding it against the wall of the chamber. Lubrication is going to be a nightmare.
+tubeist- dan I concur. I was thinking that designs going forward are going to have to escape from the traditional metal-on-metal contact that has cost so much efficiency till now. External combustion appears to be the best solution.
Dan - Hah ! 2 years later and I just posted almost the same comment. What if the length of vane travel was reduced to 2mm instead of the current 10 mm travel design? The combustion chamber depth would need to be tiny. Although the length of the chamber may make up for that.
Really good design man. ... give it some more symmetry by having 2x combustion chambers opposite to each other for thermal expansion symmetry... then 2 x exhaust obviously ...basically remove exhaust port cam... add fuel injectors.. throw carburetor ..attach crank gear for super charging the intake air mixture.. machine fancy end plates for new air intake paths and other things.. add roller type bearings.. more bearings to surround a fly wheel... etc etc ... I honestly think this thing could rock with enough tinkering.40-50 thousand rpm..
Good luck guys. Is the combustion chamber too big compared with intake volume? Also needs a way of mechanical controlling the seal bar as that will get smashed at higher rpm. Good luck
Nikita - You could use a screen and some sand or iron blocks to quickly vary the combustion chamber size. You might want to try some natural gas instead of gasoline; also try some starter fluid but be very careful with starter fluid. The theory seems correct. Wish I could provide you with a verbal articulation for your video. Also a flywheel would allow you to advance the ignition. You show two vane type seals; a large main seal that rotates with the rotor and a small seal that stays with the stater. At high rpm the centrifugal force on the large seals will be difficult to manage. Need to figure out how to lessen that weight and/or the length of the seal to travel. The expansion of the seal due to heat is also gong to be a critical factor. It might seize. Be nice if the main seal could be a roller bearing somehow and it only moved 0.125" or 2mm .
There's a lot of exhaust pulse reversion contaminating the intake charge. If you can help clean up the different charges similar to a rotor engine it will run. Look at the triangle design which is a step up from your prototype maintaining a balanced assembly. Good work, it's trial and error like this that leads to advancement.
very nice thing ,. but there is tree problems . 1- i dont think that the air is going to well comperes in chamber , i think its a bit big . 2- the yellow thing which is made for sealing that you installed in side the rotary thing is a big big and it can break easy because of the shape and the size that thing is expanded out . it would be better if you made that thing looks like the cam shape or in side the cylender its could be smother 3 the problem is my English sorry for my bad English :)
It looks quite efficient, but I see the issue of very low displacement compared to the amount of metal. It's going to have a good bit of inertia to overcome both in starting and in stopping. I also foresee issues with those seals wearing out even more quickly than the apex seals on a Wankel rotary, and even those erode problematically quickly.you're going to need incredibly strong springs for this to run at any speed. It's definitely an interesting concept and I wish you the best of luck.
Actually if it gets running the centrifugal force will help hold the seals in contact with the chamber. I agree wear will be a major factor and should have a 2 cycle mix for fuel maybe a 40:1 fuel/oil mix.
IMO, it looks like the combustion chamber is too big compared to the intake chamber, so it doesn't have enough compression. But I'm impressed with your idea. Good job dudes..
Are you the designer and the maker of the parts? Because it dose look and appear to have possibly exhaust gases or you are not being able to hold the intake air during compression cycle. I notices you had your finger over the carburetor air intake hole, which appeared to be having exhaust gasses or air which was under compression from the cylinder back flowing thru the carburetor air intake.
Так это же типичный ванкель, только в вашем варианте еще добавлены места, где будут чудовищные ударные нагрузки, которые съедят ваши уплотнения на роторе за пару минут. Ну, если вы все же сможете его заставить проработать эти пару минут. -В ванкеле не зря ведь камера имеет плавную эллиптическую форму (и все равно проблемы с уплотнениями).
Great work, always good to see people coming up with new ideas. However I see one drawback with this motor and that is the large inertia of the rotor seals and large displacement they need to move in a short space of time.. This will prevent the seal from tracking on the housing limiting the motor to very low rpms.
how do you plan on handling lubrication and cooling? A fuel/oil (like in a 2 stroke) could keep your mass down (giving the engine scooter use possibilities) but greatly putting out pollutants. Cooling though, are you shooting for air cooled or liquid? liquid opens up a whole new can of worms to deal with (mass issues and thermodynamics). I'll keep dropping by to see where you take this, its peaked my curiosity.
Great idea, intake cycle seems too short and i wonder if you are compressing the mixture enough, have you checked how much compression the engine making?
Hi I have lost the access to the original account.. Sadly.. I took some time away from this project to make some money and buy new machinery.. I am currently working on a different prototype.. version 2.0 i guess.. i will post on this account once i am done.. or closer to being done.
I observed a small metallic part connected to a spring. This gets worn out quickly. Do replace this with an alternative. Keep going and be strong. All the best.
Good idea but you have allot of space that is unused like you could move the exhaust over more away from the intake which would prevent the intake air from being over heated and also prevent fuel lines from melting
Have you considered having your seals retract mechanically via a cam or crank? looks like you would also be losing momentum of the rotor as they collide. Nice work, good luck.
Да не, братан, забудь. Ты просто взял конструкцию обычного коловратного гидронасоса и решил, что всё щас будет. Нет, не будет. Проблема смазки уплотнений у тебя не решена так же, как она не решена у роторного двигателя Ванкеля. Только в твоем случае уплотнение ротора будет ударяться в том месте статора, где у тебя происходит сжатие. Размолотит и развалится, братан. Та, подобные конструкции можно довести до ума и они будут работать. Но работют они не долго. Ну и самый смех в том, что мы так и не увидели самостоятельной работы двигателя - шуруповерт надо было убрать вообще-то. Но для американцев покатит - они любят говорить "Good idea, man!!" на каждую безперспективную хрень))
Interesting idea. I also thought of spring-loaded seals when designing my own rotary engine, but the problem is those spring-loaded seals cannot maintain a proper seal when the engine is spinning at thousands of RPM. The inertia of the seals is too high and they start floating. Also, there is a big problem with lubricating the seals, because rotary engines can't scavenge oil for reuse, so rotary engines inevitably burn oil. That makes rotary engines impractical for any usage where clean exhaust is a concern.
NICE IDEA. I HAVE DESIGNED SOMETHING SIMILAR, SUPERIOR THOUGH. ONLY PROBLEM WITH NON-RECIPROCATING ENGINES IS LUBRICATING. ALSO YOUR COMBUSTION CHAMBER MUST BE DESIGNED TO CHANNEL ALL THE OR MOST OF THE POWER TO THE SPRING LOADED PROTUDING RIDGE.SINCE THE POWER STROKE IS NOT PERPENDICULAR TO THE PROTRUDING RIDGE, YOU WILL NOT GET SUFFICIENT TORQUE. OKAY FOR LIGHT MACHINERY. NOT SUITABLE FOR CARS .
The bare minimum requirement for a working engine ids that it continues to run when the starter motor is disconnected. One major flaw of the design is the side combustion chamber. In the classic 4 stroke sequence, the intake gas is compressed and then ignited in its compressed state. In your design, the compressed intake fuel mixture is decompressed as it expands into the combustion chamber cancelling out the previous compression stage and considerably reduces the potential performance of the engine.
Good concept to work from, which is why I gave you a thumbs up. Painful to watch though, at least for me. I genuinely think it would help your cause, and attract more interest if you had someone more fluent in public speaking to introduce and explain this concept. I say that sincerely, because your concept deserves consideration.
i wonder if this prototype ever progressed beyond this stage. it seems to be a good idea but I don't know if it actually is because we don't know how efficient it is or the power it can put out. it seems to be a good idea because a lot of parts have been eliminated compared to a normal engine which should make it more reliable and long-lasting. Did you build a version 2 or something?
Remember before mazda there were companys that waisted a lot of money trying to develop the rotary engine, even Mazdas latest version after 60 or 70 years of trying is much less efficient than a modern 4 cyl. But still you get an A+ for effort👍😉
The theory is quite a good. But i foresee a lot of problems with the movable parts installed in the rotor and the part at the combustion chamber. But keep up the good work. It's a wankel without all the wankel weak spots.
I agree with David. You guys have solved the basic design problem, now all you need is superior machining. A very clean, efficient concept. Good luck.
There are quite a lot of design problems in this prototype, but I very much like the idea. And the fact that you put this together yourself with minimal tools. I'm looking forward to the next iteration of your engine. Good luck!
hi i have lost the access to the original account ...
but yes you are right there are lots of problems ... now i have recently purchased some machinery and am working on a new project i will post it on this account one I'm done ...
@@nekitsurguy2445 subbed
@@jonasverreyken8384 he doesn't need your "good luck" bit the onside that he tries to incent the wheel for a second time. It's useless Work.
Please keep the project going
Your engine prototype is awesome.
hi i have lost the access to the original account
but thank you for your support i am still working on it ...
I REALLY LIKE THIS ENGINE IDEA!!! not the strongest or most reliable (seals will wear) but wery simple and easy to maintain, but in your current prototype, I find 5 problem... please don't give up with this engine yet.
1: as you already told, the ports. I think they are too small and act as air pump slowing the rotor. Also I prefer 180 Dec angle between them because it will releaf stress from bearing.
2: the fuel get mixed the air too early and might "wet" the plug when rotor finally shoves heterogenetic mixture in to combustion chamber. I think this is the 2nd bigest problem.(I would consider fuel injection... like in old tractors)
3: 2 spring just isn't enough... as you told... it backfires back in to the carburator, wich might also explains unreliable ignition. (3 phase rotor would be nice, 4 might not have enough air to fill chamber completely)
4: the air is escaping around rotor seals results as drop in presure. (you noticed exhaust coming from bearings)
5: there is no wheel. Please, Install it. It will make a LOT easier to test prototype with heavy flywheel. After all, that is a prototype... a LOT of friction. You need to store power somewhere to make it to be able to get next cycle on it's own.(rotor is not going to be enough)
just some suggestions. Keep it up, it is not far away from working.
p.s. I didn't read other comments. So... i might have told same ideas that others have already have told you.
With engineering passion
- engineer student from Finland :D
i ve lost the access to the original account .. thank you for the input.. at the time ive put that engine on hold i felt like i needed a bit of better machinery in order to produce one with a slightly better tolerances ...
now to your concerns ...
things that ive figured out over these few years ...
1. the ports ... the intake and exhaust ports are a bit small ... how ever one of the issues is the port from the combustion chamber to the working chamber . that port is too big... the idea is to make it work like a potato cannon except pushing the plate around instead of the potato...
2 the fuel mixture ...
i have realized that that was one of the main issues as far as having it fire reliably .... i have tested it on both the oxy/acetylene mixture and propane which sadly bot of them did not provide enough fuel flow to keep up with the intake .... now what worked better is when took a blow torch and heated the whole engine assembly up ... I've got a quite a bit more reliable firing but ... still no go as far as it actually running ...
3... the springs ... as far as the seals on the hills the little brass ones ... they do a decent job of sealing and separating the chambers ... now one of the bigger issues is that the combusted gas goes through the side of the rotor where ideally the rotor face and the side plate should be in a very close tolerance i have a bit of a wobble ... which allow a 0.05- 0.4 mm gap between the side and the rotor ... now if you multiply that by the half of a circumference ... its a big gap ..so pressurized gas blows some of the fuel mixture out and messes with the air to fuel ratio which again prevented it from firing reliably ...
well either way thank you for your input you gave me some more things to think about ...
Just love the inventiveness of people, to make this up in your garage is fabulous, never give up.. well done.!
That should encourage you start chasing your own dream.
Target: the day my wife declared that our basement was the biggest junkyard in the whole world !!!
You guys did a great job, better than most! Go for it, get it kicking out some RPM and screaming. You started it and got a lot done, HELL I'm still waiting to start most of my projects.
Absolutely brilliant. Please keep us posted with any progress you make on this. Would love to see it running on its own.
The seals will probably be your greatest challenge, as it was for the Wankel engineers. That's very nice work on your prototype, given the tools you have to work with. I can't wait to see this engine run after you have improved it! Thanks for sharing!
Great job you guys, great execution of a prototype to prove an idea with obviously limited tool availability.
Awesome, thanks for sharing!
Keep it up guys. You will never get anywhere without trying. A cheap solution for the crank seals would be Teflon washers until you can progress further with intricate machining and seal designs. Lawn mower ignition coil and trigger will provide better spark. You are almost there.... Hang on till the end
i would like to remind you guys that this prototype is working the way it is only because of very poor execution of the parts .... the prototype is made on a 300$ lathe and bench sender.
nikita surgay What materials did you use to make it?
nikita surgay No need to remind us - anyone with even the smallest bit of mechanical knowledge had an "Oh wow" moment when you showed us how it worked, and we know the problems lay in imprecise engineering. This engine is going to be absolutely incredible, seems MUCH simpler and easier to service than a Wankel. I can't wait to see the next incarnation of it!
David Wisniewski Yes i agree. if this is a success we got a new "Nikita rotory rotor engine" lol. Good Luck and i hope to see your success in the news reports in the future (Im serious about everything i said. good luck :D )
i like it . but there is a lot to think about. concerning the inability of the springs to have a smoth syncronic response at all fq. you will need to maby divert exhaust to drive the widget piston instead of a spring , or in conjuction with a spring. or a spring and a cam rod. or a moving weight as part of widget piston.
Michael Shultz now that i think od it they could also try fuel injection. Lol
Good idea but there are a few things that would help .
1 : You need to taper the first 1/3 of the leading edge on those veins to push those seals smoother you have plenty of material and only about 6-8 millimeters in from the edge should be enough to push those seals in smoother .
2 : By eliminating that external expansion chamber ( there's already one built in to the housing ) you should almost if not more double the horsepower .
3 : Back to those veins I see you have 2 but 1 is welded into place if you take that weld off add a third that would give you less rotation between ignition points .
4 : drill some holes through/shave down some that barrel you don't need all that mass .
Great, congrats... This is the first Vid I see something serious about this tech. Others speak so much and not even a real proof of something. You'll do great. I trust you
Nice work! Keep it up. Works great for a 1st phase prototype. Make the appropriate changes and continue to make newer prototypes to learn more from trial and error.
WOOOOOOOOOOOOOOOOOOW!! Can you put some construction diagrams? Thank you very much.
Good idea guys.
Keep improving it!
I had this idea for 25 years but never built one.
I am glad you did.
My version is slightly different dough.
My version has no compression stroke, rather I use an combination of a Screw type super-charger and a turbo to provide two stage external compression to the Expander portion which you have built.
The opening slope has to be more gradual than what you have.
You must be loosing pressure there.
And ditch the combustion chamber.
You can put the spark-plug into the rotary housing, right after the high pressure charging/intake port.
But make the housing the negative electrode and the center + electrode has to be flush with the housing.
Let me know if you have any questions I am glad to help to develop this thing.
Good luck. :0)
Good Job too.
Keep up the good work. All great ideas start somewhere and take development. I commend your effort.
But not everything that starts is good ...
did you develop a rotary engine? no? then fuckoff wally.
Good idea. But it think the combustion chamber is too large. It doesn't allow for enough compression at the time of ignition to create the power necessary to drive the motor. Keep trying!
wonder if wasted spark ignition would help ?.... also they need proper gaskets to keep the compression better. great idea though
Ateşlemeden sonra çıkış yanlış
hi i have lost the access to the original account ...
now one of the main attractive features of this design is the fact that there is no compression .. this engine ideally should work like a potato cannon except instead of launching a potato it would push on the and spin the rotor ... yes the rpm will never bee high. and yes there is never going to be a lot of torque .... however the efficiency should be pretty high ...
This is nice thinking, but you lack a means to seal the outlet side of the combustion chamber, so the gases do not actually compress, they just flow into the expansion side. This is why it will not start. In a typical piston engine, the air-fuel mixture will not ignite from a spark if the compression is too low. You achieve essentially zero compression. But don't give up.
Keep building new designs... it’s brilliant.
Ingenious! Your first running problem is with the valve. You should try and mechanically activate it. It still needs some redesigning but your going the right way. I cant wait until you get it running right. I want to buy one.
Why is this downvoted? Dude tried to make an engine. That’s pretty cool even if it has flaws. I guarantee I cannot put up good drywall but I sure might film it and be proud!
the thing is, when you put up drywall, you erect the frame first. or have one pre-made. this is more akin to erecting the drywall, then attempting to build the frame for it afterwards... missing a vital aspect, a fundamental basic being overlooked...
WOW !!! Hope you guys won't give up on it, and continue with research & development- best of luck
Great job!!
I hope you make one that is fully functional!
I looked into this design about 20 years ago after taking apart a rotary refrigeration compressor & getting inspiration. When I delved deeper I found that there was a guy from Rochester NY back in the 30s that built one & put it in a motorcycle & rode around on it for a while. He concluded that the parts wore out too quickly & took it no further. However, that's not to say it couldn't be further developed today, what with modern materials. Good luck :-)
THIS IS FANTASTIC !
With design improvements and a team, it could be far more powerful than the piston engine.
It seems strange that a big company has not hired you and used a bit of r&d to make this a working engine.
Working yet or not, with what you had to make it so far is great work and skill. I for one would be very interested to see you get there in the end. Keep going, I'm sure you will get it working well.
keep innovating, this is a new take on a classic concept of rotary engines.
Молодцы! Вот бы Вашу активность людям в должностях!!!! Не бросайте свое дело. Решение компрессии в вашем случае неудачно, да Вы и сами это поняли. Ищите способ компрессии.
Keep up the good work, don't get discouraged. It looks like a promising design , the only issue I see is the sealing ,especially the sides of the rotor.
God job guys, that probably took alot of effort. It isnt easy getting a result like that With basic Tools and materials.
I bet you had fun making and tinkering With it. This is also a great way to learn and explore alternative engine concepts. Keep it up guys - hope you will make more videos like this.Greetings from Norway :)
Any updates on this? My brother had an extremely similar idea more than 15 years ago. His design is a bit different though, but the principle behind it is almost the same. He didn't pursue it though, I was amazed by how similar this is to his and sent thr video to him.
A very nice improvement of the rotary ingine.
Interesting concept. It doesn't look like it would very efficient due to what appears to be a low compression ratio but you might be on to something. Have you thought about adding another bar to the opposite side of the rotor or maybe changing the dimensions of the hills (especially the angel of the downhill side, looks a little steep) and/or the dimensions of the compression bar (maybe round the outer most edges to make a smoother contact surface?).
have you got the engine working? i think this would work, with better manufacturing, and a little re-design of the ramp angles in the chambers. i would really like to see the engine running on its own.
Have you made any progress with your engine?
Keep at it! :Love to see it running and revving under its own power. Apply for a grant or get a sponsor to get a machine shop to build the parts. Be careful what agreement you sign, however, use a lawyer so you retain all rights to every part and whole engine itself.
I believe that you need more vanes or sweepers, 3 maybe 4 of them. I believe that your that your combustion chamber needs to be in the round cylinder its self not in a separate compartment. Also a heavy flywheel would really make a difference, as the inertia that in would store can help the motor complete a rotation along with making it run smoother. Keep up the work
very good work done. have you got it working. I can see that the combustion chamber would expand the compressed air-fuel mixture., such that the pressure probably goes below 8 bar. below this pressure, the conventional spark plug gap of 0.8 mm. at 2 KV would not ignite the fuel-air mixture. one solution is to open up the spark plug gaps to 1.6 mm. and the spark voltage to 10 KV. also a richer mixture. Else, minimize the volume of the combustion chamber. I have built a similar vane type engine, and found that the vanes get the greater centrifugal energy the faster it runs, and the resulting pressure of the vanes against the walls creates its own braking effect. I would be lucky to see the rotation
beyond 1000 rpm. At this rpm, the pressure built up is low due to leakages. Thus the self cancellation effect. Try fitting the Mazda
Wankel ceramic seals on the tips of your vanes.
Wow.. why didnt anyone tell me this before..
will be following you guys got the idea love to see you finish it and make it an optional engine for cars an motorcycle ..buut great start.
Very good effort, tho the seals/rotor will self destruct rather quickly with such steep ramps if it every did run, there is also a huge potential for rather large drop in pressure as rotor reaches the combustion chamber making it less likely to exhaust and pull in new charge on intake. But I have to say it is a very cool idea and you guys did a great job with minimum tooling. Keep up the good work and take everything you've learned from this prototype and include it into the next build.
Genius--I hope you guys are successful.
the problem of your engine is the combustion chamber. when you push the misture in the combustion chamber it is exeting right away for the expeansion chaber, thats why you dont have an "explosion", because the mixture is not compressed.
grettings from portugal!
Thats exactly right... for there to be compression they would need to add valves to close the expansion until the combustion is ready.
Interesting concept - keep at it guys. As mentioned earlier it looks like the combustion chamber design is more an issue than overall leakage. The gases will need to be more compressed before any useful work can be made of the ignited mixture. Maybe smaller exit holes - have a look at indirect diesels where they have a separate combustion chamber which then feeds the cylinder - the holes can be quite small. I think Honda Civics used a similar design in their lean burn petrol engines in the eighties.
I'm impressed with your concept. Looks like your team has put alot of work into this. Will both gates on the rotor be employed, eventually? I cant wait to see it in an operational demonstation. Great job great thinking! Keep building and inventing.
It actually would fire considering the part tolerances, at appears that is actually not the issue. The problem is when you have the fuel/air mixture forced into that combustion chamber, the gasses are simply exiting on the other side of that seal plate, before it has a chance to get on the other side of the combustion chamber exit holes and thus seal for expanding gasses. Even with both seal plates installed, you still have a majority of the fuel/air mixture exiting out of the engine, on the aft side of the seal plate.You would have to install some kind of valve or reed valve activated by the rotation of the rotor to only allow the gasses to exit the combustion chamber when it is necessary. Hope this helps! Very impressive though
Nice work even if it does not start ! Cheers from Brussels ! Have you ever think to make a smaller combustion chamber (the cover with the spark plug screwed)? Yours seem way too big for a good compression... At this point of your work it should not be difficult to try to make a smaller combustion chamber. And you need intake valve as well to keep the pressure insine the combustion chamber. But I repeat : great work ! none motor on this earth had start on the first time, so keep it close to your mind dude I really think you are pretty close of womething very good. You have to calculate your compression ratio to do it nice. Regards.
Fernando
Nice try fellows! I have to admire your perseverance, despite not being equipped to fully realize your concept. A fun video. Thank you
i think you have done great work i look forward to the finished engine
I think You and me are not the only ones who have tried to design it this way, but this design got a lot of issues I've been awere of on design stage when I had the concept for the first time.
I have sorted most of the issues, but still don't hava the final solution, but I'm still far ahead designwise, although I do not even bother to build prototypes that I know that won't last for long or will have tremendous wear and power losses.
Anyway as many of us think about this kind of things some of us will succeed soon and release an engine that will wipe of the surface of the earth classic piston engines.
I got already a few different projects, but one very complicated to produce - frictionless design ;-)
Stay with development. It's a great idea. It has a future!
Interesting concept. Would like to see it running some day.
I dont care its working or not. Im just wanna say. Maan you are genius
Congratulations, I'm always happy to see fellow inventors getting their hands dirty. Here is a piece of advice in case you're expecting to sell it: unless you're capable of turning it into a product you can sell directly to customers, you're facing a tough path ahead. Vehicle companies aren't buying new technology; existing designs are profitable enough for they not to care. So, in case you manage to solve all technical problems, I'd suggest you a commercial application: an autonomous electric power plant. -Miguel
Newsflash:
This is an attempt of a "vane" rotary engine.
Nothing new.
Quite old.
Thank you for playing.
Please try again.
I'm sure everyone has pointed out the timing is the main issue. research your geometry and spend more energy to calculate precise spark and a way to advance it. great work !
Great work... definatly a unique design. I think it should work. You can hear that it IS firing... and you can see the way the drill is moving that there is some power being made. Maybe try a heavier flywheel... on the opposite side of the drill, most engines wont run without some mass to get them around to the next "stroke" Great job guys. Keep up the good work.
Please keep going with this,I really like this idea
Hows the progress coming on your motor Nikita? Brilliant idea
Mighty oak trees grow from small acorns.
I love to troubleshoot problems and you should connect a compression test gauge so can see how much Actual compression pressure it achieves?You need at least 5-6-7 Lbs and that spring loaded seal “plate” might give you problems during extreme Heat!Spring steel with the low carbon don’t really do well but obviously you are an intelligent person bilingual in English&Russian is pretty cool.Holiday in the US when you get more fluid speech and come here to test your self!Good Luck and Never give up on development of this idea.”Keep on Keepin on,”
I came up with this same design more than 20 years ago and found it to be unsound for any real power. But you are doing a good job on your execution. At least it works. the problem is you will have to come up with better ways of sealing. It will end up having to be close to a wankel engine and thus will be prone to the same problems.
4:30 "as soon as it passes the exhaust portion", the rotor seal snags on the stator seal and locks up, causing it to grenade.
Very interesting design! Do you have any patents???
An here i am thinking im the best builder in the world smmhhh, youtube has made me realise my place, i always thought i was smarter than all the myth buster guys cuz allot of things theyve done and tested i have done my entire life since i was 4, now after watchimg youtube videos you start to see all this talent that was undiscovered before cuz only famouse people got to show off there skills to masses of people. Im so glad youtube allows us to see people like this who have drive, and are facinated with engineering.
That vane is going to slam into the rise of the 'hill' at some 80 fps and the thing isn't going to run longer than a minute. That's not counting the centrifugal force holding it against the wall of the chamber. Lubrication is going to be a nightmare.
+tubeist- dan I concur. I was thinking that designs going forward are going to have to escape from the traditional metal-on-metal contact that has cost so much efficiency till now. External combustion appears to be the best solution.
Nom
Dan - Hah ! 2 years later and I just posted almost the same comment. What if the length of vane travel was reduced to 2mm instead of the current 10 mm travel design? The combustion chamber depth would need to be tiny. Although the length of the chamber may make up for that.
somebody give this man a job, if it pops, blows smoke, then it will run. love the idea.
Really good design man. ... give it some more symmetry by having 2x combustion chambers opposite to each other for thermal expansion symmetry... then 2 x exhaust obviously ...basically remove exhaust port cam... add fuel injectors.. throw carburetor ..attach crank gear for super charging the intake air mixture.. machine fancy end plates for new air intake paths and other things.. add roller type bearings.. more bearings to surround a fly wheel... etc etc ... I honestly think this thing could rock with enough tinkering.40-50 thousand rpm..
Good luck guys. Is the combustion chamber too big compared with intake volume? Also needs a way of mechanical controlling the seal bar as that will get smashed at higher rpm. Good luck
Nikita - You could use a screen and some sand or iron blocks to quickly vary the combustion chamber size. You might want to try some natural gas instead of gasoline; also try some starter fluid but be very careful with starter fluid. The theory seems correct. Wish I could provide you with a verbal articulation for your video. Also a flywheel would allow you to advance the ignition. You show two vane type seals; a large main seal that rotates with the rotor and a small seal that stays with the stater. At high rpm the centrifugal force on the large seals will be difficult to manage. Need to figure out how to lessen that weight and/or the length of the seal to travel. The expansion of the seal due to heat is also gong to be a critical factor. It might seize. Be nice if the main seal could be a roller bearing somehow and it only moved 0.125" or 2mm .
it is awesome friend good luck in your project
arduino argentina
Interesting - I think your spring loaded sealing bar needs a more gradual opening after it passes over the the sealing bar near the combustion chamber
That's an interesting design. Good job
There's a lot of exhaust pulse reversion contaminating the intake charge. If you can help clean up the different charges similar to a rotor engine it will run. Look at the triangle design which is a step up from your prototype maintaining a balanced assembly. Good work, it's trial and error like this that leads to advancement.
very nice thing ,. but there is tree problems .
1- i dont think that the air is going to well comperes in chamber , i think its a bit big .
2- the yellow thing which is made for sealing that you installed in side the rotary thing is a big big and it can break easy because of the shape and the size that thing is expanded out . it would be better if you made that thing looks like the cam shape or in side the cylender its could be smother
3 the problem is my English sorry for my bad English :)
It looks quite efficient, but I see the issue of very low displacement compared to the amount of metal. It's going to have a good bit of inertia to overcome both in starting and in stopping. I also foresee issues with those seals wearing out even more quickly than the apex seals on a Wankel rotary, and even those erode problematically quickly.you're going to need incredibly strong springs for this to run at any speed. It's definitely an interesting concept and I wish you the best of luck.
Need to use pneumatic actuator?
Actually if it gets running the centrifugal force will help hold the seals in contact with the chamber. I agree wear will be a major factor and should have a 2 cycle mix for fuel maybe a 40:1 fuel/oil mix.
IMO, it looks like the combustion chamber is too big compared to the intake chamber, so it doesn't have enough compression. But I'm impressed with your idea. Good job dudes..
Are you the designer and the maker of the parts? Because it dose look and appear to have possibly exhaust gases or you are not being able to hold the intake air during compression cycle. I notices you had your finger over the carburetor air intake hole, which appeared to be having exhaust gasses or air which was under compression from the cylinder back flowing thru the carburetor air intake.
Так это же типичный ванкель, только в вашем варианте еще добавлены места, где будут чудовищные ударные нагрузки, которые съедят ваши уплотнения на роторе за пару минут. Ну, если вы все же сможете его заставить проработать эти пару минут. -В ванкеле не зря ведь камера имеет плавную эллиптическую форму (и все равно проблемы с уплотнениями).
Это не ванкель.
Great work, always good to see people coming up with new ideas. However I see one drawback with this motor and that is the large inertia of the rotor seals and large displacement they need to move in a short space of time.. This will prevent the seal from tracking on the housing limiting the motor to very low rpms.
The rotary needs a comeback.. so much potential from a small, lightweight powerplant
how do you plan on handling lubrication and cooling? A fuel/oil (like in a 2 stroke) could keep your mass down (giving the engine scooter use possibilities) but greatly putting out pollutants. Cooling though, are you shooting for air cooled or liquid? liquid opens up a whole new can of worms to deal with (mass issues and thermodynamics).
I'll keep dropping by to see where you take this, its peaked my curiosity.
alot of work good job...Don't stop...
I'm not sure if I missed something but I believe all your compression is going out through your exhaust
Great idea, intake cycle seems too short and i wonder if you are compressing the mixture enough, have you checked how much compression the engine making?
Any new updates on this engine? This could be worth investing in. I'm interested in the project
Sorry for a late reply. I have lost access to my original account... I am currently working on a different prototype..
Nikita, Do you have fully functional prototype now??? It is very interesting.
Hi I have lost the access to the original account..
Sadly.. I took some time away from this project to make some money and buy new machinery.. I am currently working on a different prototype.. version 2.0 i guess.. i will post on this account once i am done.. or closer to being done.
@@nekitsurguy2445 Good luck to you.
I observed a small metallic part connected to a spring. This gets worn out quickly. Do replace this with an alternative. Keep going and be strong. All the best.
Ребята привет разговаривайте пожалуйста по русски для нашей аудитории , будет полезней. Жду версию на нашем языке.
Good idea but you have allot of space that is unused like you could move the exhaust over more away from the intake which would prevent the intake air from being over heated and also prevent fuel lines from melting
Have you considered having your seals retract mechanically via a cam or crank? looks like you would also be losing momentum of the rotor as they collide. Nice work, good luck.
Да не, братан, забудь. Ты просто взял конструкцию обычного коловратного гидронасоса и решил, что всё щас будет. Нет, не будет. Проблема смазки уплотнений у тебя не решена так же, как она не решена у роторного двигателя Ванкеля. Только в твоем случае уплотнение ротора будет ударяться в том месте статора, где у тебя происходит сжатие. Размолотит и развалится, братан.
Та, подобные конструкции можно довести до ума и они будут работать. Но работют они не долго.
Ну и самый смех в том, что мы так и не увидели самостоятельной работы двигателя - шуруповерт надо было убрать вообще-то.
Но для американцев покатит - они любят говорить "Good idea, man!!" на каждую безперспективную хрень))
Interesting idea. I also thought of spring-loaded seals when designing my own rotary engine, but the problem is those spring-loaded seals cannot maintain a proper seal when the engine is spinning at thousands of RPM. The inertia of the seals is too high and they start floating. Also, there is a big problem with lubricating the seals, because rotary engines can't scavenge oil for reuse, so rotary engines inevitably burn oil. That makes rotary engines impractical for any usage where clean exhaust is a concern.
NICE IDEA.
I HAVE DESIGNED SOMETHING SIMILAR, SUPERIOR THOUGH. ONLY PROBLEM WITH NON-RECIPROCATING ENGINES IS LUBRICATING.
ALSO YOUR COMBUSTION CHAMBER MUST BE DESIGNED TO CHANNEL ALL THE OR MOST OF THE POWER TO THE SPRING LOADED PROTUDING RIDGE.SINCE THE POWER STROKE IS NOT PERPENDICULAR TO THE PROTRUDING RIDGE, YOU WILL NOT GET SUFFICIENT TORQUE. OKAY FOR LIGHT MACHINERY. NOT SUITABLE FOR CARS .
The bare minimum requirement for a working engine ids that it continues to run when the starter motor is disconnected. One major flaw of the design is the side combustion chamber. In the classic 4 stroke sequence, the intake gas is compressed and then ignited in its compressed state. In your design, the compressed intake fuel mixture is decompressed as it expands into the combustion chamber cancelling out the previous compression stage and considerably reduces the potential performance of the engine.
Good concept to work from, which is why I gave you a thumbs up. Painful to watch though, at least for me. I genuinely think it would help your cause, and attract more interest if you had someone more fluent in public speaking to introduce and explain this concept. I say that sincerely, because your concept deserves consideration.
i wonder if this prototype ever progressed beyond this stage. it seems to be a good idea but I don't know if it actually is because we don't know how efficient it is or the power it can put out. it seems to be a good idea because a lot of parts have been eliminated compared to a normal engine which should make it more reliable and long-lasting. Did you build a version 2 or something?
Remember before mazda there were companys that waisted a lot of money trying to develop the rotary engine, even Mazdas latest version after 60 or 70 years of trying is much less efficient than a modern 4 cyl. But still you get an A+ for effort👍😉
The theory is quite a good. But i foresee a lot of problems with the movable parts installed in the rotor and the part at the combustion chamber. But keep up the good work. It's a wankel without all the wankel weak spots.