Adiabatic Wankel Type Rotary Engine


860616 R. Kamo, R. M. Kakwani, W. Hady ABSTRACT A new generation of
Wankel rotary engines that can offer multifuel capability, increased
fuel economy, and improved performance and reliability could have a
profound influence on the design of future power plants for aircraft,
automotive and other applications. ...The recent advances in
adiabatic diesel engine technology have potential to improve the
Wankel rotary engine. In this paper, the potential benefits of
adiabatic Wankel engine and advanced concepts like- advanced
turbochargers, high compression ratio, faster combustion, and reduced
leakage have been assessed. ...In this paper, the potential benefits
of adiabatic Wankel engine and advanced concepts like- advanced
turbochargers, high compression ratio, faster combustion, and reduced
leakage have been assessed. A Wankel simulation model was used to
predict performance of the adiabatic Wankel engine with these
advanced concepts- predicting an overall improvement of 25.5% in BSFC
and 34.5% in power output.

Jose Gros-Aymerich

Madrid, Spain


"an overall improvement of 25.5% in BSFC and 34.5% in power output"

Pure BS!!!!  ROFL

A 5% improvement would be a monumental achievement!

Paul Lamar


This document on adiabatics?

Steve Carlisle

Wrong Authors.  860616 looks like an SAE number.

This one is a NASA paper.

The problem with coatings is they tend to come off.

Now if we had a solid silicon nitride rotor that would really be
something :-)

Paul Lamar


Silicon oxynitrate die-cast will work as a rotor face if held in a 2 piece hub.
Some newer options are alloyed with metals to subdue the brittleness.
Not cost effective yet. Also can be bought as plate stock, works as
inserts in the side housings held in carbon fiber.

Under heat the carbon shrinks almost none and the si is very stable.
I expect it will hold together nicely. We shall see...

Michael Nash

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