Editing Piston
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[[Image:Piston and connecting rod.jpg|thumbnail|right|Piston and connecting rod]] | [[Image:Piston and connecting rod.jpg|thumbnail|right|Piston and connecting rod]] | ||
A piston is a component of reciprocating [[engines]], pumps and gas compressors. It is located in 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 cylinder. In some engines ([[two-strokes]]), the piston also acts as a valve by covering and uncovering ports in the cylinder wall. | A piston is a component of reciprocating [[engines]], pumps and gas compressors. It is located in 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 cylinder. In some engines ([[two-strokes]]), the piston also acts as a valve by covering and uncovering ports in the cylinder wall. | ||
[[Category:Definitions]] | [[Category:Definitions]] |