Dual spark plug ignition engine

Details Dual spark plug ignition engine Dual spark plug ignition engine

1977-04-13

1979-03-20

Myhre, Charles J.

Internal-combustion engines

Igniters

Incandescent

123119EC, 123148E, F02P 306

Patent

active

041448600

ABSTRACT:
The air-fuel mixture in each combustion chamber of a dual spark plug ignition engine is ignited with two spark plugs during normal engine operation, but is ignited with only one of the two spark plugs during high power output engine operation. The spark timing in the ignition with one spark plug is advanced relative to that in the ignition with two spark plugs.

REFERENCES:
patent: 1702108 (1929-02-01), Churcher
patent: 1722145 (1929-07-01), Hermann
patent: 2025203 (1935-12-01), Harper, Jr.
patent: 3554092 (1968-11-01), Shibagaki
patent: 3570460 (1971-03-01), Demetrescu
patent: 3756205 (1973-09-01), Frost
patent: 3809042 (1974-05-01), Hosho et al.
patent: 3929115 (1975-12-01), Yamauti et al.
patent: 4040395 (1977-08-01), Demetreseu
patent: 4068628 (1978-01-01), Duckworth

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