Ignition system for an internal combustion engine

Details Ignition system for an internal combustion engine Ignition system for an internal combustion engine

1980-01-30

1981-02-24

Cox, Ronald B.

Internal-combustion engines

Engine speed regulator

Responsive to deceleration mode

123335, 123355, 123418, F02B 000

Patent

active

042520959

ABSTRACT:
An ignition system for an internal combustion engine, which includes circuitry for producing pulses at a frequency directly related to rotational speed of the engine and a capacitor discharge circuit. A first monostable circuit responsive to the pulses is arranged for triggering the capacitor discharge circuit by passing from its stable state to its unstable state. A second monostable circuit responsive to the pulses is arranged for triggering the capacitor discharge circuit when passing from its unstable state to its stable state. The time constant of the first monostable circuit is substantially equal to the frequency of the ignition system discharge corresponding to the maximum admissible speed of the engine. The time constant of the second monostable circuit being equal to a predetermined value equal to a value of retarded ignition allowing operation of the engine at a reduced power.

REFERENCES:
patent: 3153746 (1964-10-01), Atkinson
patent: 3738340 (1973-06-01), Olson
patent: 3884203 (1975-05-01), Cliffgard
patent: 3985109 (1976-10-01), Kondo
patent: 4163431 (1979-08-01), Wilkinson
patent: 4198933 (1980-04-01), Sieber

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