Hello Paul,
well, you can find a bunch of patents related to DISC RE. I hope, you don't
want me to send you all the papers, I've found so far ... ;-)

In the years before 1990 or 2000 they had no CFD + not the required computer
power for serious research. But I can send you a list of some NASA / C-W /
John Deere publications - in fact the engines were running ...

If you use gasoline instead of heavy fuel there is a problem with DI (direct
injection): in cold engines, the fuel will condens at the cold walls + wash
away the oil film. That is especially hard for the so called cold lobe of
REs. That's one reason, Daimler changed their injection system. Another
reason are the costs of Diesel-like injection pumps ...

Even today with all the - pretty expensive - simulation software it seems
not so easy to understand all the flows inside an RE, because the chamber is
moving ...

Perhaps you know someone, who can build the chamber volume shape at TC for
you, for example with a kind of foam. Than you have a 3D model to "study".
It's rearly very thin with a lot of surface around ...

"Static" / fixed pre chambers in the trochoid housing are good for the first
part of ignition + combustion, but they lower the compression ratio ...

Oh boy, there so much details to think about ...

So that this text is not totally useless for you, here's a patent from Pratt
+ Whitney, filed in 2015.

By the way: good luck for your record setting project - I hope, you will
"kill" the old "reciproke bastards" ... ;-)

With kindest regards

Frank (Herfert)

I have them and read most of them years ago. The bottom line is they never achieved
a better BSFC than Mazda and they gave up. RPI was the last company
that tried. The main problem is the combustion chamber shape.

Nothing will get done on the BSFC until they get serious about the heat lost
from the combustion chamber. That means different materials for the
rotor or configuration and chrome plated side housings.  In the mean time
turbo compound will drop the fuel consumption 20 or 30%.

The second NASA paper expands on that. It is an obscure title that makes it
hard to find. It was done by Sunstran under contract with R.P.I. and NASA.

They got 80 HP more out of a Mazda engine with no increase in fuel
consumption using a turbo charger and power recovery turbine in theory.
It didn't even have a p-port  :-) The problem is the hardware was
never tested as far as I know.

For all I know it is being flown in a secrete drone some place :-)


APPENDIX C

TURBO MACHINERY SYSTEM ANALYSIS
FOR STRATIFIED  CHARGE ROTARY
ENGINE CRITICAL TECHNOLOGY/ENABLEMENT

How about that for a nice clear concise  title :-)

Paul Lamar

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