A reciprocating engine, also often known as a piston engine, is a heat engine (usually, although there are also pneumatic and hydraulicreciprocating engines) that uses one or more reciprocating pistons to convert pressure into a rotating motion.
A V6 engine is a V engine with six cylinders mounted on the crankshaft in two banks of three cylinders, usually set at either a 60 or 90 degree angle to each other.
The straight-six engine or inline-six engine (often abbreviated I6 or L6) is an internal combustion engine with the cylinders mounted in a straight line along the crankcase with all the pistons driving a common crankshaft (straight engine).
A four-stroke engine (also known as four cycle) is an internal combustion (IC) engine in which the piston completes four separate strokes while turning a crankshaft.
A two-stroke, or two-cycle, engine is a type of internal combustion engine which completes a power cycle with two strokes (up and down movements) of the piston during only one crankshaft revolution.
The Pyréolophore was probably the world's first internal combustion engine
Unit injector (UI) is an integrated direct fuel injection system for diesel engines, combining the injector nozzle and the injection pump in a single component.
Common rail direct fuel injection is a direct fuel injection system for petrol and diesel engines.
Indirect injection in an internal combustion engine is fuel injection where fuel is not directly injected into the combustion chamber.