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LiquidPiston: Efficient rotary engine

liquidpiston.com

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Re: LiquidPiston: Efficient rotary engine

#22
I'm very confused why the name of the company is LiquidPiston, when their primary product appears to be a rotary engine, not an actual liquid piston engine. Was there a pivot or a previous product? Does anyone know?

For examples of actual liquid piston engines, see:

https://en.wikipedia.org/wiki/Fluidyne_engine

https://en.wikipedia.org/wiki/Humphrey_pump

https://en.wikipedia.org/wiki/Pulsometer_pump

http://www.google.com/patents/US5127369

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