Engine starter protecting device

Details Engine starter protecting device Engine starter protecting device

1985-06-21

1986-11-18

Dolinar, Andrew M.

Internal-combustion engines

Starting device

For airplane

123179A, 123179B, 290 37A, 290 38D, F02N 1108

Patent

active

046229302

ABSTRACT:
An engine starter protecting device which prevents engagement of the starter's pinion with the ring gear of the engine, even when the engine is rotating. Sensors detect when the gear shift lever is in the neutral position, when the frequency of the ignition pulses for the engine is above a predetermined value, when the vacuum pressure of the intake air to the engine is at or below a predetermined value, when the vacuum pressure of the intake air to the engine is at or below a predetermined value, and when the output voltage from the altenator of the invention exceeds a predetermined voltage. The electromagnetic switch which controls the starter motor is prevented from operating unless the outputs from the detectors are in predetermined states.

REFERENCES:
patent: 2067084 (1937-01-01), Hartzell
patent: 2803236 (1957-08-01), Tamburello
patent: 3053243 (1962-09-01), Domann
patent: 3712283 (1973-01-01), Kiess et al.
patent: 3718128 (1973-02-01), Botker
patent: 3872316 (1975-03-01), Kurii et al.
patent: 4295540 (1981-10-01), Hildebrecht
patent: 4402286 (1983-09-01), Pagel et al.

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