> Hi Paul and group,
     >
     > Here is an update from the link in your web site on ceramic engine.
     >   http://ceramicrotaryengines.com/
     >
     >
     > Marc Joseph
     >
     > -----------------------------------------------------------------
     > ------
     > Update as of September 2008
     > Appropriate data for an equivalent /metal/ Wankel engine is being
     > currently generated which should act as baseline data for comparing
     > with data yet to be generated from our /ceramic/ Wankel engine. A
     > prototype CeTZP ceramic Wankel rotor has been made to
     > specification. A
     > CeTZP ceramic Wankel housing and CeTZP ceramic side plates are being
     > commissioned. Preliminary tests for the ceramic Wankel engine
     > should be
     > carried out at our test facilities once the ceramic components are
     > assembled. When, we do not know. This is a novel technology and
     > we want
     > to get it right.
     > ------------------------------------------------------
     >
     > This sounds pretty good.
     >
     > "The Phase I study of the turbocharged "Adiabatic Wankel-Type
   Rotary
     > Engine"indicated progressive performance improvements in Wankel
   rotary
     > engines when the combustion chamber components were
     > insulated.  The
     > adiabatic Wankel engine with the advanced concepts:
     > turbocompounding, higher
     > compression ratio, reduced leakage, and faster combustion could
     > decrease the
     > specific fuel consumption by 25% and increase power output by
     > 34%.  The
     > elimination of the cooling system can give another 5% reduction
     > due to
     > cooling system components.  A total possible improvement of
     > 30% in
     > performance and a 15% reduction in specific weight on an
     > installed basis
     > could provide the next spring-board for the adiabatic Wankel
     > rotary engine
     > to compete in the worldwide aircraft, automotive, industrial,
     > and other
     > power plant markets."
     >
     >
     > One thing they missed is the lower density of a ceramic rotor will
     > allow upping the max revolutions to generate even more power per
     > pound and power
     > per cubic foot of engine.
     >
     > Paul Lamar


   Yes a lot hotter for the exhaust system.  As if it was not hot enough.
   Is Inconel alone could sustain that amount of heat?

   Marc Joseph

Maybe they'd need a ceramic exhaust. Or a ceramic turbine wheel to
turbo-compound the engine.

Brian Trubee