Stressing mechanism for a piezoelectric ignition system

Details Stressing mechanism for a piezoelectric ignition system Stressing mechanism for a piezoelectric ignition system

1974-10-07

1976-04-06

Burns, Wendell E.

Internal-combustion engines

Igniters

Incandescent

310 87, 315 55, H01V 700

Patent

active

039482383

ABSTRACT:
Mechanism is provided for activating a piezoelectric crystal used to produce a spark at a plug fitted to the cylinder of an internal combustion engine. The mechanism has a striker for delivering current-generating blows to the crystal and this striker is coaxially mounted with respect to a driven shaft of the engine such as the crank shaft or cam shaft. Cam means connects the striker to a rotor which is driven by the shaft through drive means including a one-way clutch. The striker is reciprocated in timed relation to rotation of the driven shaft and can be rotated about its own axis by a device which is operated to vary the timing of the spark in accordance with the speed of the engine.

REFERENCES:
patent: 2717916 (1955-09-01), Harkness
patent: 2871280 (1959-01-01), Harkness
patent: 3082333 (1963-03-01), Hufferd et al.
patent: 3229154 (1966-01-01), Crownover
patent: 3737691 (1973-06-01), Hoover

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