Contactless control pulse generator for rotary machine timing

Details Contactless control pulse generator for rotary machine timing Contactless control pulse generator for rotary machine timing

1977-09-14

1980-03-25

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

123148CC, H02K 1920

Patent

active

041952413

ABSTRACT:
For generating control pulses for timing gasoline engine ignition, a rotor of magnetically conducting material with one or more notches in its edge cooperates with a stator also of magnetically conducting material having the configuration of a shallow U, of which the extremity of one leg presents a broad area to the narrow air gap between it and the edge of the rotor and the other leg presents essentially a knife edge. A magnet is mounted on the former leg and a pick-up device, such as a Hall generator, field plate, inductive winding or a reed switch is provided on the other leg to produce an electric signal in response to changes in magnetic flux. The passage of the notch by the broad area foot of the stator produces at most an insignificant change in flux, whereas passage of the notch by the other stator leg produces a sharp change in flux and hence a control pulse.

REFERENCES:
patent: 2117018 (1938-05-01), Conrad
patent: 2117019 (1938-05-01), Conrad
patent: 2221814 (1940-11-01), Reid
patent: 3554179 (1971-01-01), Burson
patent: 3572106 (1971-03-01), Jonas
patent: 3809040 (1974-05-01), Burson
patent: 3941110 (1976-03-01), Sekiguchi
patent: 4074669 (1978-02-01), Cavil

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