Quote:
Originally Posted by Calum
Care to expand on it then? I'd love to know more about what they're doing and how it works. I thought about searching for the patent, but laziness took hold. Well, that and the hangover.  |
There's a gif on this page that does a pretty good job of explaining how it works.
http://www.rotrex.com/Home/Technology/Product_Concept
At least it does a better job than I can explain with my simple vocabulary...
What's not explained well, by Rotrex themselves or the people who sell them, is that the planetary drive is not magic. It doesn't uncouple the impeller from the crank shaft speed and allow the boost to ramp up faster than the other centrifugals on the market. It doesn't spool to full boost early in the RPM band and give you a dyno sheet that looks like a turbo car.
If there's more midrange with a Rotrex, it comes from the efficiency of their traction drive and the impeller design (compressor map) itself. Not from earlier boost onset.