Quote:
Originally Posted by moore_rb
We're still not talking about the same thing... You are still hammering on fixed ratio, belt driven superchargers... and I don't disagree with anything you wrote (yes, I read your WHOLE post   )
However, what if the ratio of engine RPM to compressor RPM wasn't fixed? what if you could vary the impeller speed and set the boost level wherever you wanted it, at almost any RPM? What if your blower could be PROGRAMMED to work with a MAP sensor, and a variable speed transmission, to deliver more boost at lower engine RPMs, and less boost at higher RPMs in order to provide a nice, broad, flat torque curve...? 
Yes, you sure can....
https://www.procharger.com/procharger-i1 |
Wow I am behind the times. I read where one of the German car companies were experimenting with a continuous variable drive design on a positive displacement blower. If memory serves they were shooting for no throttle plate. Quite a few years back.
Ok now that I am up to date, yes that would work as you described.
Thanks for the link and explanation.