Glow plug control system for diesel engine

Details Glow plug control system for diesel engine Glow plug control system for diesel engine

1981-03-03

1983-03-22

Lall, P. S.

Internal-combustion engines

Starting device

For airplane

123145A, 123179B, 219497, F02N 1700

Patent

active

043771386

ABSTRACT:
A glow plug control system which includes a controller connected to a battery through an ignition switch, an indicator lamp and a glow plug relay connected to the controller and a parallel combination of four glow plugs connected to the battery through normally open contacts of the relay. The controller includes a comparator having its two inputs connected across the parallel glow plugs, and a constant current circuit for supplying a constant current to the parallel combination of the glow plugs for sensing the resistance of the glow plugs. The controller senses the resistance of the glow plugs due to their temperature through the comparator and permits the battery to supply a current to the parallel combination of the glow plugs for a time determined in response to the sensed resistance.

REFERENCES:
patent: 3789190 (1974-01-01), Orosy et al.
patent: 4088109 (1978-05-01), Woodruff et al.
patent: 4195415 (1980-04-01), Livings et al.
patent: 4283619 (1981-08-01), Abe
patent: 4307688 (1981-12-01), Steele

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