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Old 03-22-2013, 06:19 AM   #254 (permalink)
George Tyler
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Quote:
Originally Posted by drmiller100 View Post
.....

Thought experiment two. Imagine a 4 or 2 stroke engine, except it has superheated piston, and we have direct injection of liquid water. We inject the water at TDC.

Will this engine "run"????
There was an old engine design in "Model Engineer" magasine, maybe even before the 2nd world war... it had a head with a narrow gap between it and the top of the cylinder. the head had a step, so it sealed around the outside. The head was of finned construction and the fins were heated by a flame, just before TDC a drop of water was injected into the cylinder, and the close fitting piston forced the water into the slot where it instantly turned to steam, which then pressurizer the cylinder. there were many iseas like this in that magasine.
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