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

If you wanted your engine’s cylinder head ported or a metal flake lacquer finish laid down on your roadster, this was the place to go.

From Washington Post • Dec. 25, 2017

Conventional engines combust fuel in the cylinder head.

From New York Times • Jun. 20, 2012

A second threaded spark-plug hole was provided in the cylinder head and despite its more common use for other purposes, it is evident that the intention was to provide two-plug ignition.

From The Wright Brothers' Engines and Their Design by Hobbs, Leonard S.