glow plug

glow plug
An electrical element located in the combustion chamber of a diesel engine which helps to heat up the air in the chamber so that the diesel fuel will be ignited more quickly. Often they are connected in series so that when one becomes defective the others are inoperative. Also called a "heater plug."
Also see

Dictionary of automotive terms. 2015.

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  • glow plug — glow plug, adj. Auto., Mach. a device for each cylinder of a diesel engine with a heating element to heat the incoming fuel and air so that combustion will take place more readily when the engine is cold. [1940 45] * * * …   Universalium

  • glow plug — glow′ plug n. aum mac a device with a heating element that spreads fuel combustion at each cylinder of a cold diesel engine • Etymology: 1940–45 …   From formal English to slang

  • glow plug — I. noun : a small electric heating element placed inside a diesel engine cylinder to preheat the air and facilitate starting II. noun : a heating element in a diesel engine cylinder to preheat the air and facilitate starting ; also : a similar… …   Useful english dictionary

  • Glow plug (model engine) — For the glow plugs used in automotive diesel engines, see Glowplug A glow plug (alternatively spelled glowplug or glow plug) is a device, similar to a spark plug, used to ignite the fuel in the very small internal combustion engines typically… …   Wikipedia

  • glow plug indicator — A monitoring element in a preheater system, which changes the colour of its filament in line with the plug and indicating readiness for starting …   Dictionary of automotive terms

  • glow plug — noun Date: circa 1941 a heating element in a diesel engine cylinder to preheat the air and facilitate starting; also a similar element for ignition in other internal combustion engines …   New Collegiate Dictionary

  • glow plug — noun a device in a diesel engine that heats the combustion chamber to help ignition …   Wiktionary

  • sheathed-type glow plug — A single pole glow plug having a tubular heating element with a heating coil or a heating and regulator coil enclosed in a thermally conductive insulator ceramic. Also see self regulating sheathed type glow plug …   Dictionary of automotive terms

  • wire glow plug — A double pole glow plug with an unsheathed wire loop; now superseded by sheathed type glow plugs …   Dictionary of automotive terms

  • coil glow plug — See open coil glow plug …   Dictionary of automotive terms

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