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Dale Rogers wrote:
With direct injection - just after the intake ports are
obscured - a realistic possibility, I wonder if the 13B
couldn't be a star platform for a heavy fuel solution.
Hmm, I've got an extra engine, and if I can ever get the
"fly" engine on the airplane ... nah, just another distraction
to keep me from finishing the COZY. After that?
Diesel needs the high compression to get the fuel-air mix above it's auto-ignition temp. Could you get the same temps with a turbo without the intercooler and/or preheating the fuel before the injector with a oil-to-water heat exhanger? You'd probably need a small tank for gas to warm it up, or adding an electric heater if heating the fuel were sufficient. Heat the fuel to something on the order of 500*F, and it will be like a flame thrower going into the cylinder. It will ignite as soon as it is exposed to oxygen (it would possibly coke in the lines, too). Take the heat off of the exhaust, and it wouldn't even need spark to keep running. Of course, it would probably melt the housing around the spark plug hole in short order. Can't have everything, ya' know. 8*)
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