> True. My proposal to solve this problem is to pass the exhaust > successively through one or more turbos, like those on ordinary > turbocharged cars, so as to extract the maximum energy from the heat. > Each turbo would be coupled, not to a compressor, but to a generator, > and this would add to the electricity generated. > > Also, conventional turbine engines are expensive. Mine would be > (relatively) inexpensive. GM made a few of their EV1's using small turbine engines as generators. You may want to do a patent search to see how they dealt with these and other issues. Bernard