We all know how a conventional internal combustion engine works, with a piston and a crankshaft. But that’s by no means the only way to make an engine, and one of the slightly more unusual ...

Toyota is revolutionizing the automotive industry with its groundbreaking W-Piston Free-Piston Engine, which achieves an impressive 50% efficiency. This innovation not only promises enhanced ...

From General Motors Corp.’s research shops last week came a torpedo-shaped car with a revolutionary new engine. Called the XP-50O, the car is powered by a 250-h.p. “free-piston” engine that many ...

A novel but not new kind of engine is figuring more and more often in engineering literature and bull sessions. Last week the Cleveland Diesel Engine Division of General Motors Corp. gave details ...