spark-mixture engine

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• Spark-ignition engine — The term spark ignition engine is normally used to refer to internal combustion engines where the fuel air mixture is ignited with a spark. The term contrasts with compression ignition engines, where the heat from compression alone ignites the… …   Wikipedia

• spark ignition engine — (SI engine) In contrast with a diesel engine (which does not use a spark plug), a spark ignition engine uses a spark plug to ignite the fuel/air mixture …   Dictionary of automotive terms

• 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

• Engine knocking — Pinging redirects here. For other uses, see Ping (disambiguation). Knocking (also called knock, detonation, spark knock, pinging or pinking) in spark ignition internal combustion engines occurs when combustion of the air/fuel mixture in the… …   Wikipedia

• Engine tuning — is the adjustment, modification or design of internal combustion engines to yield optimal performance, either in terms of power output or economy. It has a long history, almost as long as the development of the car in general, originating with… …   Wikipedia

• spark — ► NOUN 1) a small fiery particle thrown off from a fire, alight in ashes, or caused by friction. 2) a light produced by a sudden disrupted electrical discharge through the air. 3) a discharge such as this serving to ignite the explosive mixture… …   English terms dictionary

• spark|plug — spark plug, 1. a device in the cylinder of an internal combustion engine by which the mixture of gasoline and air is exploded by an electric spark. 2. Informal, Figurative. a person who gives energy or enthusiasm to others: »The shortstop is the… …   Useful english dictionary

• spark-plug — spark plug, 1. a device in the cylinder of an internal combustion engine by which the mixture of gasoline and air is exploded by an electric spark. 2. Informal, Figurative. a person who gives energy or enthusiasm to others: »The shortstop is the… …   Useful english dictionary

• Spark plug — In internal combustion engines with electric ignition, a plug, screwed into the cylinder head, connected with the induction coil or magneto circuit on the outside, and used to produce a spark to ignite the fuel air mixture in the engine. [Webster …   The Collaborative International Dictionary of English

• spark plug — also sparking plug BrE n a part in a car engine that produces an electric ↑spark to make the petrol mixture start burning …   Dictionary of contemporary English

• spark plug — spark′ plug n. 1) aum elm a device that ignites the fuel mixture in a cylinder of an internal combustion engine 2) inf a person who leads, inspires, or animates • Etymology: 1900–05 spark′plug , v.t. plugged, plug•ging …   From formal English to slang