Engine ignition device

Details Engine ignition device Engine ignition device

1984-04-04

1985-12-17

Cox, Ronald B.

Internal-combustion engines

High tension ignition system

Additional spark energy supply

123640, F02P 100

Patent

active

045586853

ABSTRACT:
There is provided an engine ignition device which generates a high voltage in the secondary windings of the ignition coil through switching on and off of the electric current flowing in the primary windings by means of an ignition circuit. The generated high voltage is impressed on the ignition plugs to initiate ignition, and, at the same time, the high voltage is boosted by a DC-DC converter connected to the secondary windings and is supplied continuously to the ignition plugs, to prolong the discharge duration. There is further provided a DC-DC converter controlling circuit to control the DC-DC converter to initiate ignition synchronous with the ignition signal output and also to reduce the operating time of the DC-DC converter as the engine increases its speed.

REFERENCES:
patent: 4349008 (1982-09-01), Wainwright
patent: 4369757 (1983-01-01), Anzai
patent: 4393850 (1983-07-01), Nishida
patent: 4407259 (1983-10-01), Abo
patent: 4409952 (1983-10-01), Canup
patent: 4462380 (1984-07-01), Asik

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