cylinder head

American  

noun

1. (in a reciprocating engine or pump) a detachable plate or cover on the end opposite to that from which the piston rod or connecting rod projects.

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cylinder head British  

noun

1. Sometimes shortened to: head.  the detachable metal casting that fits onto the top of a cylinder block. In an engine it contains part of the combustion chamber and in an overhead-valve four-stroke engine it houses the valves and their operating mechanisms

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Etymology

Origin of cylinder head

First recorded in 1880–85

Example Sentences

But the U.S. said Friday that Ford’s fix lets fuel drain from a cylinder head hole to the ground below the vehicles.

From Seattle Times • Apr. 12, 2024

"Following a study about the economics of cylinder head suppliers, Renault Group has found another supplier that will start working with us from 2024," a Renault spokesman said.

From Reuters • Aug. 23, 2022

On Nov. 6, a man was injured when he lost his balance and fell on a cylinder head in the engine room.

From Washington Post • Apr. 30, 2021

A few other companies use these “opposed-piston engines” as well, and the absence of the cylinder head and the elimination of many other parts makes them lighter and cheaper than conventional engines.

From New York Times • Jun. 20, 2012

St'nar's artisans would have no difficulty repairing a cracked cylinder head and a bent push rod.

From Fearful Symmetry A Terran Empire novel by Wilson, Ann