combustion chamber

American  

noun

Machinery.

1. a chamber, as in an engine or boiler, where combustion occurs.

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combustion chamber British  

noun

1. an enclosed space in which combustion takes place, such as the space above the piston in the cylinder head of an internal-combustion engine or the chambers in a gas turbine or rocket engine in which fuel and oxidant burn

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combustion chamber Scientific  

1. An enclosure in which combustion, especially of a fuel or propellant, is initiated and controlled.

2. See also internal-combustion engine

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Etymology

Origin of combustion chamber

First recorded in 1850–55

Example Sentences

See Examples For:

combustion chamber

However, during engine operation, moving parts such as pistons require constant lubrication, making it unavoidable that small amounts of engine oil enter the combustion chamber.

From Science Daily ● May 13, 2026

The need for cooling meant redesigning the combustion chamber itself, and incorporating a new air-to-water heat exchanger.

From The Wall Street Journal ● Feb. 12, 2026

In contrast, liquid-fuel missiles use fuel and oxidizer pumped into a combustion chamber, which combust when mixed and burned.

From Washington Post ● Apr. 28, 2023

Researchers introduced boron powder into the combustion chamber using multiple nozzles that produced shock waves that slowed the air intake.

From Washington Times ● Feb. 22, 2023

On the other hand, if considered from a viewpoint of actual heat efficiency, it is theoretically the worst form of combustion chamber.

From Aviation Engines Design?Construction?Operation and Repair by Pag?, Victor Wilfred