Fuel shut-off solenoid pull-in coil relay

Details Fuel shut-off solenoid pull-in coil relay Fuel shut-off solenoid pull-in coil relay

1993-10-29

1995-01-10

Cross, E. Rollins

Internal-combustion engines

Starting device

With fuel or intake air control

123198DB, F02N 1700, F02B 7700

Patent

active

053797337

ABSTRACT:
The pull-in coil of a fuel shut-off solenoid on an engine is connected to a relay which in turn is connected to the engine starting circuit. The relay is connected through the oil pressure light switch which opens after a short period of time as the result of a change in oil pressure as the engine is being cranked. Solenoid overheating is avoided since the relay pull-in coil current is cut off as soon as the oil pressure rises.

REFERENCES:
patent: 3738346 (1973-06-01), Goodman
patent: 3744467 (1973-07-01), Wagner
patent: 4077381 (1978-03-01), Firey
patent: 4102316 (1978-07-01), Valbert
patent: 4200079 (1980-04-01), Darlington
patent: 4494497 (1985-01-01), Uchida et al.
patent: 4602600 (1986-07-01), Akatsuka et al.
patent: 4685431 (1987-08-01), Kuboto et al.
patent: 4741306 (1988-05-01), Watanabe et al.
patent: 4867115 (1989-09-01), Henein
patent: 4924827 (1990-05-01), Minegishi
patent: 5072702 (1991-12-01), Sasaki et al.

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