a rod or bar in an engine that connects a piston to a crosshead

Any of several types of engine having cylinders containing reciprocating pistons, in which a crankshaft is turned by pistons moving up and down within cylinders.

plural of piston engine

plural of piston rod

plural of piston ring

In a single-acting engine, an elongated hollow piston, open at the end, in which the end of the connecting rod is pivoted. The piston rod, crosshead and stuffing box are thus dispensed with.

plural of trunk piston

A valve which uses a hollow or double piston sliding in a cylinder to direct fluid along one of two paths

Pertaining to the opposed-piston engine / opposed-cylinder engine