Engine igniter

Details Engine igniter Engine igniter

1989-06-16

1991-06-04

Nelli, Raymond A.

Internal-combustion engines

High tension ignition system

Safety device

F02D 108

Patent

active

050205064

ABSTRACT:
An engine igniter has a reference signal coil which generates an advance-side reference signal and a lag-side reference signal during a half-cycle of the alternating current output of a generator. An ignition timing control circuit determines the direction of rotation of the engine based on the polarity of the alternating current when the reference signals are generated. The ignition timing control circuit controls the ignition timing of an ignition circuit, using the lag-side reference signal as a reference at low engine speeds and using the advance-side reference signal as a reference at high engine speeds. When the engine begins to rotate in reverse, the ignition timing control circuit prevents ignition and stops reverse rotation.

REFERENCES:
patent: 4080940 (1978-03-01), Fuzzell et al.
patent: 4086894 (1978-05-01), Capurka et al.
patent: 4491122 (1985-01-01), Piteo
patent: 4827891 (1989-05-01), Miura et al.

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