engine ignition
21ignition timing — It is important that the spark coming from the spark plugs ignites the air fuel mixture at the correct moment determined by the manufacturer of the engine. Often this is a few degrees before top dead center (BTDC). Suppose the specs indicate that …
22ignition switch — A control device that is generally operated with a key that closes and opens an electrical current to connect and disconnects the ignition system from the battery so that the engine can be started and stopped as desired. The key should not be… …
23Engine swap — Warning: in some jurisdictions with strict smog rules it may not be possible to register a late model vehicle with an engine swap, even if it can be proven that it produces less pollution than the original engine (owing to visual inspection… …
24engine — 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… …
25ignition timing — The timing of the ignition spark with respect to the piston position in the cylinder of a reciprocating engine. The ignition of the fuel air mixture must take place when the piston is still moving upward during the compression stroke for the… …
26ignition map — An electronic map stored in the electronic control unit of ignitions with electronic spark timing and containing the most favorable ignition angle/ignition point for every operating point of the engine. Spark timing is optimized on the basis of… …
27ignition — n. 1 a mechanism for, or the action of, starting the combustion of mixture in the cylinder of an internal combustion engine. 2 the act or an instance of igniting or being ignited. Phrases and idioms: ignition key a key to operate the ignition of… …
28ignition engine — See spark ignition engine …
29ignition pattern — A display of the waveforms in the primary or secondary circuit of an ignition system in the firing order of the engine; optionally parade or display pattern and stacked or raster pattern. Also see reference ignition pattern …
30ignition — /ig nish euhn/, n. 1. the act or fact of igniting; state of being ignited. 2. a means or device for igniting. 3. (in an internal combustion engine) the process that ignites the fuel in the cylinder. [1605 15; ML ignition (s. of ignitio) a setting …
