Difference between revisions of "Piston"
Jump to navigation
Jump to search
(New page: 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...) |
(No difference)
|
Revision as of 00:16, 26 May 2010
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.