Spark timing control system

Details Spark timing control system Spark timing control system

1982-04-13

1984-04-17

Cox, Ronald B.

Internal-combustion engines

Combustion chamber means combined with air-fuel mixture...

123435, 73119R, F02P 504

Patent

active

044428146

ABSTRACT:
A spark timing control system for reducing engine noise in an internal combustion engine utilizing a sensor for detector for detecting engine vibration, a filtering device receiving the output of the sensor and passing frequency components within a range of 500 to 2000 Hz, and a generating circuit responsive to the passed frequency components for generating an output signal when the level of the passed frequency outputs exceeds a reference value. Spark timing is retarded when the output signal is received from the generating circuit thereby reducing engine noise.

REFERENCES:
patent: 4061116 (1977-12-01), Saida
patent: 4111035 (1978-09-01), West et al.
patent: 4153020 (1979-05-01), King
patent: 4211194 (1980-07-01), Hattori et al.
patent: 4261313 (1983-04-01), Iwata et al.
patent: 4279143 (1981-07-01), Gaipauo
patent: 4282841 (1981-08-01), Takagi et al.
patent: 4370963 (1983-02-01), Iwata

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