Internal combustion engine ignition method

Details Internal combustion engine ignition method Internal combustion engine ignition method

1981-12-30

1984-04-17

Lall, Parshotam S.

Internal-combustion engines

High tension ignition system

Multiple spark ignition system

123620, 123641, F02P 504

Patent

active

044428219

ABSTRACT:
In order to improve the cold starting efficiency of a an internal combustion engines using alcohol or low cetane type fuel, an ignition method provides an ignition mode in which a plurality of energizations of the ignition plugs per cycle is effected during engine cold starting operation which is detected by sensing at least one of the engine temperature and the engine speed. The number of energizations per cycle is returned to one after the engine has sufficiently warmed up. The method is applied to both of a plasma ignition system and a conventional spark ignition system.

REFERENCES:
patent: 1877332 (1932-09-01), Laisne
patent: 3418990 (1968-12-01), Lindell, Jr.
patent: 3620201 (1971-11-01), Warren et al.
patent: 3704591 (1972-12-01), Tatsutomi
patent: 4122816 (1978-10-01), Fitzgerald et al.
patent: 4133329 (1979-01-01), Caron
patent: 4369756 (1983-01-01), Ezoe
patent: 4398526 (1983-08-01), Hamai et al.

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