System for advancing the ignition time in ignition systems havin

Details System for advancing the ignition time in ignition systems havin System for advancing the ignition time in ignition systems havin

1978-02-06

1979-11-20

Cox, Ronald B.

Internal-combustion engines

Igniters

Incandescent

123149C, 123117R, F02P 100, F02P 504

Patent

active

041746970

ABSTRACT:
At higher engine speeds the ignition time is advanced by decreasing the time between the breakdown of a threshold element which breaks down for a predetermined amplitude of voltage across the primary winding of the ignition coil and the furnishing of the signal which causes interruption of the primary current. The time is shortened either by decreasing the time constant of the timing circuit connected to the threshold element, or by switching a second timing circuit having a shorter time constant into the circuit at higher engine speeds.

REFERENCES:
patent: 3484677 (1969-12-01), Piteo
patent: 3898972 (1975-08-01), Haubner
patent: 3900015 (1975-08-01), Mainprize
patent: 3933139 (1976-01-01), Beeghly
patent: 3938491 (1976-02-01), Mazza
patent: 3963015 (1976-06-01), Haubner
patent: 4090488 (1978-05-01), Ohki
patent: 4099509 (1978-07-01), Hashimoto

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