precombustion chamber


Definition of precombustion chamber

: an auxiliary space in which combustible gases are ignited and combustion started ahead of the main combustion chamber of a jet or gas engine The glow plug is an electrically operated device that protrudes into the precombustion chamber. When energized the glow plug tip heats to a dull red. The swirling, highly compressed air-fuel mixture is heated by the glow plug tip.Auto Fundamentals

First Known Use of precombustion chamber

1914, in the meaning defined above

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The first known use of precombustion chamber was in 1914

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Cite this Entry

“Precombustion chamber.” Dictionary, Merriam-Webster, Accessed 25 Feb. 2021.

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