Brian Carlsen wrote:

General question: Is there any point in using a turbocharger to slow the

exhaust pulse and act as

a noise reduction device?? Carrying on from that, can you use the turbo

(with gearing) to drive a

alternator, water pump, vacuum pump, fuel pump, etc. If as the evidence

suggests that 50% of power

goes out the exhaust, is it feasible to use the turbocharger to drive

the propellor via  a

reduction gear???

Works great. One of the reasons I am going with a turbo. Not to
mention high altitude cruise advantages.

Paul Lamar

Do not be misled by the "50 percent out the exhaust" . Most of that cannot
be retrieved by any
practical means. A recovery of about 5 percent (of BHP) might be recovered.
This is enough
to possibly use for accessory drive but little else. Turbcharging is the
most productive use
at our scale. - Vance

You are forgetting the results achieved  on the R3350TC Vance.
They must have recovered about a third to a half of it or they would not
have achieved these results. The HP went from about 2800 HP
for the non turbo compound R3350 to about 3800 HP for the turbo compound
version. That's a fact.

Paul Lamar
 
The AirCraft Rotary Engine NewsLetter.  Powered by Linux.
ACRE NL web site. http://home.earthlink.net/~rotaryeng/            
Copyright 1998-2002 All world wide rights reserved.