Internal combustion engine - Wikipedia Diagram describing the ideal combustion cycle by Carnot. An internal combustion engine (ICE) is a heat engine in which the combustion of a fuel occurs with an oxidizer (usually air) in a combustion chamber that is an integral part of the working fluid flow circuit. In an internal combustion engine, the expansion of the high-temperature and high-pressure gases produced HOW IT WORKS: Internal Combustion Engine - YouTube The operation of a V8 engine is demonstrated explaining the cylinders, pistons, crankshaft & cams, connecting rods, and the fuel system parts such as the car.. MAN engines and components | MAN Engines MAN ENGINES. MAN Engines is your partner for efficient diesel and gas engines in the 37 kW to 1,471 kW (50 hp to 2,000 hp) performance range, as well as for axles and transfer cases. We develop, manufacture and sell pioneering products of excellent quality for your applications.