Pistons

thumb|upright|Animation of a piston system A piston is a component of reciprocating engines, reciprocating pumps, gas compressors, hydraulic cylinders and pneumatic cylinders, among other similar mechanisms. It is the moving component that is contained by a cylinder and is made gas-tight by piston rings. In an engine, its purpose is to transfer force from expanding gas in the cylinder to the crankshaft via a piston rod and/or connecting rod. In a pump, the function is reversed and force is transferred from the crankshaft to the piston for the purpose of compressing or ejecting the fluid in the

split ring that fits into a groove on the outer diameter of a piston in a reciprocating engine

assembly that houses a gland seal

mechanical machine for igniting tinder by adiabatic compression

joins a piston to the crosshead and thus to the connecting rod that drives the crankshaft or the driving wheels

alpha or gamma type Stirling engine with one or more liquid pistons