Abstract: An engine is disclosed which includes most of the parts of a conventional internal combustion engine with the exception of the fuel and intake mechanisms. In place of the fuel and intake portions, a steam head is substituted. A fluid to be utilized as steam is injected at varying small quantities into the head where the fluid is heated to produce steam. A valve train lets steam into the cylinder forcing the piston down. On the return stroke the piston forces the exhaust steam out an open exhaust valve. The movement of the piston, results in rotation of a crank. Either the rotation of the crank or the exhaust steam, or both, are utilized to produce electrical energy which is used to produce the steam and thus at least partially minimize the amount of fuel required to operate once the engine is operated for a short time.