The word "efficiency" get's flashed around like a casual by-word. I have asked and asked yet no-one (so far) has been able to quote specific numbers or present graphical test results of the efficiency of the Fottinger hydraulic coupling. My general understanding from the automotive world is that it is unlikely to exceed much above ~80% whereas a well-designed fully-geared drive can exceed 90%. This is an important detail in respect of fuel consumption. My understanding is that ROLLS-ROYCE dyno tested salvaged DB's and analysed their supercharger drive design and efficiency. This must have generated an official report as this testing was commissioned by the R.A.E. I would like to see that report. It would go a long way toward explaining the mystery as to why R-R (and others) never copied it. Does any know for sure??
@@NuclearLama Hi, it has to be asked; "Why should it be so incredibly difficult to get a straight answer from the manufacturers of fluid couplings?". This should be a routinely tested parameter and consequently a simple graphic of the calculated mechanical efficiency should be freely available. I can offer you a reasonable estimate derived from the automotive industry in respect of fluid torque converters (which they do make available!) which, although not quite the same as a fluid coupling, is sufficiently comparable to be a reliable indicative number. When operating in partial slip mode you should expect no more than 80-85%(at most) compared with a well designed and made gear train achieving >95%. A significant difference!
![บุษบา - วงชานเมือง [LiveCoverVertion] Original : เมนทอล](http://i.ytimg.com/vi/Dm81sKcd9rs/mqdefault.jpg)
Whoever made this demo is so brilliant! The idea of using 2 fans to explain the concept is amazing!
It is a video from Voith Turbo
Without saying a single word perfectly explained the mechanism....Great work
brilliant. no words were spoken and now I finally get the mechanics behind a torque converter
Highest level of video making I have ever seen. Great video
Thank you so much! This served a better demonstration than my entire lecture video + textbook
This is such an easily understood video, brilliant.
Thank you. Excellent presentation idea.
Marvelous Explanation
animations are really good!
this is awesome
good explanation
It's very useful
Awesome!!!
Thank you
Wowww so much fun really i like it 🙂
phenomenal
Awesome
nice
superb
thanks for this...only there is a sound problem..
Kerela outo mobaile engineering 🔥🔥
Input shaft blue wali ha kya
#National ITI Edappal
I still dont understand how can you make a seal between the shell and the turbine. Unless the whole thing is inside another shell.
Good question. I assume that this coupling is inside another shell with the same fluid. Like you said.
No sound?
the fans made me enlightened.
Great video NEED SOUND PLEASE AND EXPLANATION
swag
Brilliant idea connect the light directly to the switch board instead of using 2 fans
#vedilukku
sound problem otherwise best video........
When you have no problems, would you was you have a "problems problem"?
Well, by the same principle -there are is no sound problem :)
great animation but some words would be helpful
Hello everyone
Please call Amrit pal (AP) for more information
Lagu anak
The word "efficiency" get's flashed around like a casual by-word. I have asked and asked yet no-one (so far) has been able to quote specific numbers or present graphical test results of the efficiency of the Fottinger hydraulic coupling. My general understanding from the automotive world is that it is unlikely to exceed much above ~80% whereas a well-designed fully-geared drive can exceed 90%. This is an important detail in respect of fuel consumption. My understanding is that ROLLS-ROYCE dyno tested salvaged DB's and analysed their supercharger drive design and efficiency. This must have generated an official report as this testing was commissioned by the R.A.E. I would like to see that report. It would go a long way toward explaining the mystery as to why R-R (and others) never copied it. Does any know for sure??
if you find out let me know
@@NuclearLama Hi, it has to be asked; "Why should it be so incredibly difficult to get a straight answer from the manufacturers of fluid couplings?". This should be a routinely tested parameter and consequently a simple graphic of the calculated mechanical efficiency should be freely available. I can offer you a reasonable estimate derived from the automotive industry in respect of fluid torque converters (which they do make available!) which, although not quite the same as a fluid coupling, is sufficiently comparable to be a reliable indicative number. When operating in partial slip mode you should expect no more than 80-85%(at most) compared with a well designed and made gear train achieving >95%. A significant difference!
Hellooooo??????? Is this thing on??????? What's wrong with this piece of crap?????? Helloooooooooooo!!!!!???!!!???
#vedilukku
#vedilukku