Paul,

Do you have any graphs of dynamometer testing that show torque, EGT and fuel
consumption vs. manifold pressure at constant RPM--6000 RPM, for example?

Steve Brazil

I wish.

What you are asking for is a BSFC map for the Mazda and they are few and far
between. I don't have one. Here is an early
one for an NSU and a typical piston engine. It is difficult data to compile
as the engine must be run for a long time at
any one setting due to the difficulty of measuring the fuel flow.

Paul Lamar

Paul,

What I'm looking for is something applicable to helicopters, so, this may
not be out there.  Helicopters run at near constant RPM and with the rotary,
torque, EGT and fuel consumption will vary with manifold pressure.  I'm not
too concerned with fuel consumption, in fact, I suspect that it may be
better than an air-cooled piston engine in a helicopter.  EGT with extended
high power operation could be an issue in that it could damage the
turbocharger.

Steve Brazil


I am not aware of any plots of that data specifically but it is all in the BSFC map.

You may have to cool the exhaust before it gets to the turbo charger.

Paul Lamar

The Rotary Engine News Letter. Powered by Linux.
ACRE NL web site. http://www.rotaryeng.net
You Tube http://tinyurl.com/beqqxas
Copyright 1998-2013 All world wide rights reserved.