Ignition system in internal combustion engine

Details Ignition system in internal combustion engine Ignition system in internal combustion engine

1985-06-20

1985-12-17

Nelli, Raymond A.

Internal-combustion engines

High tension ignition system

Using capacitive storage and discharge for spark energy

123596, 123633, 123602, F02D 306

Patent

active

045586837

ABSTRACT:
An ignition system for an outboard internal combustion engine in which the ignition timing is controlled by the throttle setting of the engine. The system includes a signaling coil, which forms a part of a magneto, a thyristor switch for discharging a capacitor which is charged by a generating coil of the magneto to supply ignition current to an ignition coil, and a delay circuit connected between the signaling coil and the thyristor switch. The delay circuit is reset every period of the output of the generating coil, so that, even when the engine rotates at a high speed, the delay operation is positively carried out. As a result, the ignition timing is maintained substantially unchanged irrespective of the speed of the engine, and electromagnetic noise from the signaling coil is greatly suppressed.

REFERENCES:
patent: 3933139 (1976-01-01), Beeghly
patent: 3960129 (1976-06-01), Hofer et al.
patent: 4007724 (1977-02-01), Mura
patent: 4188929 (1980-02-01), Podrapsky et al.
patent: 4324215 (1982-04-01), Sieja
patent: 4413608 (1983-11-01), Beeghly

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