The free piston engine, a design with opposed pistons working ... A conventional diesel engine may be a complex device with many moving parts, but it’s a well-understood machine that whoever ...

In its simplest form, a Wankel rotary engine has just two moving parts: the rotor and the output shaft. Compare that to ...

However, when something goes wrong with all of those moving parts, there can be catastrophic ... 3.5-liter V6 with an exploded piston. This engine came out of a 2012 Ford F-150 with over 200,000 ...