Bruce Crower, founder of Crower Cams and Equipment, is now retired but he’s still working in his well equipped home workshop. While thinking of ways to improve the old internal combustion engine, he came up with a method to harness the wasted heat energy by creating steam inside the combustion chamber, and using it to boost the engine’s power output and also to control its temperature.
It has a few rather amazing attributes:
“It’ll run for an hour and you can literally put your hand on it. It’s warm, yeah, but it’s not scorching hot. Any conventional engine running without a water jacket or fins, you couldn’t do that.”
Indeed, the test unit has no external cooling system—no water jacket, no water pump, no radiator; nothing. It does retain fins because it came with them, but Crower indicates the engine would be more efficient if he took the trouble to grind them off. He has discarded the original cooling fan.
Bruce Crower has quite a history all of his own and if you visit the Crower site you can read all about him. But this engine, if it works as described, could add a whole new chapter to his accomplishments. Very neat.