Does anyone have experience with pre-heating fuel and direct injection
into the engine?  I'm thinking a re-capture of heat from the engine
coolant via heat exchanger, (controlled and managed, of course, to the
optimum temperature/vapour pressure), to recoup some of the energy
lost.  Fuel combustion would be almost instantaneous and no carburetor
or standard fuel injection would appear to work.  Only direct injection,
which the rotary engine is very capable of.

This has come up before with my ideas on wing surface radiators.  How
will the heated fuel in the wing tanks react when heated up to the
coolant temps (200-250 deg)?  Fuel tanks would have to be well vented.
At what temperature would the fuel completely vaporize?(A bad thing).
Am I trying to get something for nothing, or does this idea have any
merit?

Thanks

Greg Fleming
London, Ontario, Canada

Great idea.  Can I be there to film the resultant fireball?
 Decker, Michael


Hello Greg,

This is off-topic, but I'm curious about the "wing surface radiators". I
have been mulling it over and am interested in anything that you've written
on the subject. I'm building a Lancair ES with a 20b.

Michael McMahon