Torque converter and fluid coupling. How do these devices work?
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- เผยแพร่เมื่อ 27 ต.ค. 2021
- How does a fluid coupling work? What is the difference between a fluid coupling and a torque converter? What are pump, turbine and reactor wheels for? How does the torque change? Answers to these and other questions in the video.
- วิทยาศาสตร์และเทคโนโลยี
I was confused at first on how a liquid can move a car but then I saw the pump and turbine analogy and it made sense.
Great analogy. It clicked as soon as I saw them together
Fluid moves your car up into the air for an oil change.
@@duaneantor9157 hydraulics and torque converters are a little bit different but yeah technically..., Under that thought though fluids also keep your car rolling (air in the tire) engine from self-destructing (oil between the bearings) and turning at all( gasoline/ diesel)
@@jaykoerner it also physically locks together for less power loss.
Exactly! This is the first time I really got it. A huge part of my job is testing and adjusting closed loop hydronic systems with centrifugal pumps. So I am quite well-versed in pump theory and thinking of it like this makes so much more sense.
I've been trying to understand torque converters for over 40 years. This was the first explanation I understood. Thank you!!!
Thanks
Ten years ago I was looking for this animation, and there was nothing out there. As I thought about it I realized I wasn't capable of animating it nearly well enough to illustrate all the concepts, especially as far as how it locks up at high speed. Bravo, you've dramatically raised the bar.
The Automatic Transmission Fluid has just the right viscosity to transfer the power between those impellers as well as pressurize the gear shifting valve body controls for smooth shifting as you accelerate through 1st, 2nd, and Drive. Pretty incredible design when you really look at it. Excellent video graphics.
That is not how it works.
A fluidic torque converter is a self contained unit with its own fluid sealed inside.
On some transmissions yes, on most modern transmissions they are combined units
Love the animations! It would be nice to see some arrows pointing and explaining as the animation happens though. The explanation is often quite fast and its easy to lose track of what is being spoken about!
Thanks:)
Ok, thanks for the advice
This is the best explanation I’ve seen of a torque converter. Thanks!
Good animations, and you explained all the elements, however I think it was a little too fast. Maybe you could have explained a little more in detail the torque converter part, which is more complex.
Ok, thanks, but maybe it's worth talking in more detail about the reactor, and about the blocking mechanisms
@@hydraulicandpneumaticsyste3253 YES! You could do an entire video on just how the reactor interacts with the pump and turbine.
I will try to
@@hydraulicandpneumaticsyste3253 that's all we can reasonably ask... Is that you try. Lol
I have seen lots of 3d videos explaining how a torque converter works, this is the first one that shows the actual reactor wheel and explains how the torque converter changes state. Well done!
Fluid couplers are found on forklifts for example. The lift needs to keep running hydraulics if the wheels stop against a curb - the stall speed is @ idle - can be coupled to manual transmission. Torque converters multiply the torque & provide a stall speed to assist acceleration. They are very different in design & application.
Nice video, keep them comming!
WOW! I still can’t understand how quickly this video helped me understand the way a torque converter works 🤯🤩 amazing video and excellent explanation!
Amazing video!! The graphics and script are brilliant!
Finally I understand how it works, thankyou for the simple explanation!
Hands down the best video I've seen on this, thank you!
thanks for the comment
great content and beautiful graphics , hope to see more.
Outstanding Presentation. Well Done.
Best explanation ever of a torque converter!
Best description of how they work i've seen so far.
Thank you. I'm glad you liked the video.
Outstanding animation. It makes the basic principles easy to understand.
Compliments.
Outstanding animation. It makes the basic principles easy to understand.
Compliments.
Brilliant explanation! Thank you
And what's interesting as well, is Jim Hall of Chaparal racecar fame, made surprising use of coupling a torque converter to a two-speed manual transaxle in some of his racecars. I believe the Chaparal 2B was the first.
Thank you for the animations!
Very nice explanation!
Top shelf animations.... Well done and very well explained.
Thank you. I'm glad you liked the video
these were used down the pit for the gearbox to motor connections on the conveyor belt system, they were huge, some 6 foot high weighing many tonnes and filling them up took many gallons of fluid which was a white oil and caused terrible skin conditions if you come into contact with it, an instant dermatology condition, they were very reliable, in fact, I can't think of one ever breaking down and they ran 24/7 none stop for decades except for the summer servicing and fluid top-ups,
thanks for the comment
perfect explanation, and easy to understand animation, thanks you,. it is 3 years that i want to understand how my car trasmission work..
Pointing engine and transmission sides would be helpful I think. Good job.
Yes, I could show it in more detail. I will take into account in the following works.
Easily the best Torque Converter explanation out there
Wow excellent and great animation thank you and very helpful video thank you so much
Thanks
Damn, I didn't know and never imagined. Makes sense and is pretty cool...
The explanation was well... Fluid!
I wonder what software you use to make these slick animations
Great explanation of a seriously awesome kind of coupling. Never knew these existed! Also one of the hottest fluid Sims I've recently seen!
Great video mate!
Wow, this is better than ASMR, I was falling asleep before it was over.
Great educational video.
Torus vortex is a way of life. Well done.
Great video
👍👍
Well done ! I want more.
Thanks. I will try
This is a thumbs up video material 👍
Best explanation.
Simple explanation 😀
Amazing how this works
Back in 1964, my ford with an automatic was a few hundred more with the auto option over the manual transmission. I prefer the manual but I see why with that jet engine like turbine technology for the 60's!! Makes sense 🤔 👍
People that say they prefer a manual over a auto are like saying you prefer horse and buggy over a car. Its obsolete. And yes I been driving both for some 30yrs and auto save so much time in traffic. I use to drive in work 40Km and the auto was 20 minutes faster in heavy traffic jams.
@@ntal5859 for me after loosing my right leg in a horable accident and getting it reattach and usable too. All I could think about in the hospital was can I drive a manual transmission car again. And I can! I'm into performance cars. I had a 97 M3 back when this happened to me and if you like performance cars they go better with manual transmissions. But you know I wouldn't want one in LA traffic. I drive hundreds of miles in fire protection every week and my little dodge van is auto thankfully.
What an awesome piece of engineering. Sadly my Audi needs a new one.
جميل استمر❤
Brilliant
Really cool animation
Thanks
excellent
Make more vedios new subscriber from india
Is it the same hydraulic-motor?
Why don't they use stators (reactor wheel) for directing the initial flow from the pump to the turbine? It seems a stator in either flow path will increase torque, and a stator on each will increase it further. And is there any air or vacuum in the torque converter or is it filled 100% with fluid?
It is filled 100% with fluid
I still do not understand how the reactor or stator as I've heard some people call it, increase the torque output. Does it just direct the fluid from the the turbine to the impeller into the impeller blades, reducing friction, energy loss et cetera?
It spins the fluid flow. The pre-spun particles enter the pump wheel, which spins them even more, which ultimately allows you to increase the torque. At the same time, the rule of mechanics is observed, we win in effort, we lose in movement. The output shaft will have increased torque, but its RPM will be lower.
Ahhhhh now it makes sense! Thank you. 🤗 The animations are great and you explained everything but to someone who has never seen it work it was a little too much information and not broken down enough.
Ok. So I get that the liquid from the other fan spinns the other fan. But where does it come from??? The liquid? And how does it come there? Is it pre filled or does it flow from the gearbox or? And how does it seal inside when the parts are moving?
The liquid is usually the transmission fluid itself. When transmission is filled, some fluid goes into the torque converter. In old vehicle revival, since the tranny is dry sometimes, the vehicle does not move until the fluid is put into the transmission. This is the reason why...
thanks 👌
Cool!
Which software you have used to create such easy explanations
Cinema 4d, Octane render
How is it that oil doesn't leak out from the joint of the two halves?
much much better than dual clutch system in cars today ..
How neat is that.
Very cool video !
But I'll be keeping my third pedal.
thanks
see Voith. they pioneered the technology over 120 years ago. I worked for them for five years. it was quite amazing and torque Converters and fluid couplings , components of the same variety with the Subtle differences explained in the video . some are used in buses, others are used to non mechanically power any drivetrain from ships propellers to conveyor belts anything with a high load or high torque requirement as it runs at full capacity like a 3 km long mining conveyor belt and how to start it up under no load conditions and then slowly ramp it up without destroying the drivetrain or overloading the drivetrain or tripping the electrical power supplying the drivetrain from the gearbox to the electrical motor soft starter etc. many favour electronic drives like vfd, variable frequency drives or frequency converters but ultimately the mechanical device pioneered 120 years ago is still the best way to handle massive loads in a mining environment or any other heavy industry like steel production.
@0:40 aren't the turbine vanes angled the wrong way?
People used to call these derivately "slush boxes" because of the difference in shifting in early versions. Now it's the only type most people buy.
Lovely Demo! ❤😊
That was a lot of words, but I think I understand now.
No mention of the fluid's shearing strength and stall speed.
How is the torque converter not leaking out the liquid
Superb graphics
Thanks
The fact that somebody even came up with this
The pattern inside maybe can discover(testing alot) the strongest wind or vacuum? I have idea maybe hover vehicle just like this.
Or simple the movement of boat, hidden movement way like this? Looks maybe cheaper to have 2 or more will be nice? Easy to make boat turns like have left, right, easy control from front?
Or you could say the torque converter (torque is the French word for twist...) forces out high velocity fluid to hit the blades of the turbine input shaft....and then the transmission moves the driveshaft to power the axles that are attached to the wheels
minor nitpick, but shouldn't the vanes on the turbine at 1:05 spiral the other way?
Yes, I made a mistake when I did the animation
Why don't you just wind the batteries backward? Also please provide the recipe for the gravey. Do I add onions?
This is great and all but it doesn't show a stater support seal. That little $2 seal breaks or deteriorates you lose pressure in the transmission and it grenades itself takes out the pump the torque converter possibly burning up some bands or servos.. what sucks is it cost quite a few hundred dollars cuz the transmission has to come out to replace that seal
Clutch next?
I came here to find out how the fluid gets into and out of the torque converter.....the cycle of the fluid. Might help knowing this when I change it out.
why it doesn't use a normal clutch ?
I still cant understand how this just "knows" when you are braking. Wouldn't this be fighting against the brakes when you try to stop?
Wait... You still need transmission?
Here I'm trying to sleep and this Torque converter thing is making my head hurt
Nile?
I always think bad of torque converter because the parts don't really touch each other and rely on fluid to transfer power....but when I think of these thing can fly a plane....I can speak no thing as well😂
Just when I wonder how they work, this pops up
this... is... nile gray?
Sa nissan verita meron nyan... kinalas namin, pinapalitan ng fluid..
What happens if you get bubblegum in there?🤔
Nothing good :-)
I always wondered what magic was inside those things
And that my friends albeit a mechanical marvel, and useful at times. Is why I hate the automatic transmission, that and computers and improperly set valves making a limited range transmission, ie fuel economy cars with 4k Trans won't be able to properly Rev match or maintine a high rpm under low throttle for cornering. 99% only good for traffic. Which is kinda the point.
So a centrifugal pump is just a turbo
The turbine in a centrifugal pump is heavier than a turbo so it's like a flywheel also
animate the famous no mercy reversy
If the torque converter works by fluid coupling in theory it should never fail
An automotive torque converter also uses a friction gear to lock up. This allows you to increase the efficiency in some modes. This friction gear wears out over time.
The vanes bend and break over time and use. This is what causes them to quit working generally.
The lock-up clutch is great because it reduces heat and takes the load off the fluid. It is also a wear item, especially since most automotive OEMs care about smoothness more than longevity so they slip the hell out of the clutch during engagement making it seamless to drive. The lock-up clutches are all hydraulic or electronic activated, there are no springs in them like the video showed.
You missed the part where the stator starts turning which cases torque multiplication
Maximum torque multiplication is when stator and turbine are at zero RPM, (stator = stationary) and impeller is at maximum design "stall" RPM. As turbine speed increases near impeller speed, the stator (mounted on a one way clutch, a.k.a. sprag) will rotate (one way) and allow the torque converter to be just a fluid coupling with no torque multiplication. Turbine and impeller will never be 1:1, this is why modern converters, (post 1980's) have a lock up clutch added.
bros voice is the definition of this emoji 🤓
Still puzzles me how the fluid is sealed.
Yes, what he said…
Important to note the most basic concept ... that fluids are NOT compressible. If they were a fluid coupling would fail.
Hydraulic and pneumatic systems
Correct, except for the 2 times you say "suck".
There is not a force called suck.
If you were to slow down just a bit you could transfer much more info much more effectively.
Yes, thanks for the advice
Anyone see a Mercedes Benz truck transmission with a turbo clutch?
I have not seen, but it would be interesting to see this device
@@hydraulicandpneumaticsyste3253 look for it on TH-cam, Mercedes Benz truck transmission turbo retarder clutch
@@theworldaccordingtochris4370, thanks
@@theworldaccordingtochris4370 turbo clutch or retarder brake? Many trucks and buses use a Voith retarder as alternative to friction brakes. They're essentially wear free and mainly dump the heat back into the cooling system.
Fluid or particles? It can’t be both.
I still don't get how the reactor works. I mean, I have a suspicion, but you haven't really explained it, it might need an additional video.