Engine ignition system

Details Engine ignition system Engine ignition system

1983-08-03

1985-01-29

Nelli, Raymond A.

Internal-combustion engines

High tension ignition system

Power supply, ignition coil primary, and interrupter element...

123644, 123613, F02P 100, F02P 108, F02P 900, F02P 304

Patent

active

044959311

ABSTRACT:
An internal combustion engine ignition system includes an output switching transistor (7), the emitter-collector path of which is in series with the primary winding (5) of an ignition coil (6). To attain a constant amount of ignition energy in the ignition coil (6), the control current for the base of the output switching transistor (7) is supplied by a constant-current source (9), the level of the constant control current being selected such that while the ignition energy is being stored in the ignition coil (6), the saturated operation of the output switching transistor (7) is maintained.

REFERENCES:
patent: 3646926 (1972-03-01), Plume, Jr.
patent: 3902471 (1975-09-01), Brungsberg
patent: 3926557 (1975-12-01), Callies et al.
patent: 3937193 (1976-02-01), Kim
patent: 4106462 (1978-08-01), Hildebrandt et al.
patent: 4176644 (1979-12-01), Hellberg et al.
patent: 4202304 (1980-05-01), Jundt et al.
patent: 4308848 (1982-01-01), Pfaff et al.

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