spark-ignition engine


spark-ignition engine
A form of reciprocating engine in which the fuel-air mixture in the cylinder is ignited by an electric spark. This occurs when the piston is in the correct position during the compression stroke.

Aviation dictionary. 2014.

Look at other dictionaries:

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  • engine — A device for changing fuel energy to mechanical energy. The term applies to the primary source of power generation. In Britain there is a desire to make a clear distinction between engine and motor so that motor refers only to electric power… …   Dictionary of automotive terms


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