Device for protecting an ignition device for motor vehicles

Details Device for protecting an ignition device for motor vehicles Device for protecting an ignition device for motor vehicles

1976-03-16

1977-07-19

Dority, Jr., Carroll B.

Internal-combustion engines

Igniters

Incandescent

123148S, 315224, 361 4, 361 91, H05B 3702

Patent

active

040361993

ABSTRACT:
A device for protecting an ignition device, particularly for motor vehicles, equipped with an internal combustion engine, in which a zener diode controls, by means of at least two transistors the placing in short-circuit of a resistor connected in series with the primary winding of an ignition coil and a control device in such a manner that when the supply voltage of the device exceeds a determined value, the resistor acts in series with the coil, which avoids damage to the ignition device.

REFERENCES:
patent: 2223151 (1940-11-01), Nadler
patent: 3295014 (1966-12-01), Fisher et al.
patent: 3605713 (1971-09-01), LE Masters et al.
patent: 3725675 (1973-04-01), Olsen
patent: 3882840 (1975-05-01), Adamian et al.
patent: 3889159 (1975-06-01), Wessel
patent: 3940658 (1976-02-01), Allred
patent: 3941112 (1976-03-01), Habert

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