Glow plug energization apparatus

Details Glow plug energization apparatus Glow plug energization apparatus

1991-04-09

1992-04-28

Paschall, Mark H.

Electric heating

Heating devices

With current connection and/or disconnection means

219497, 219505, 219508, 219205, 12317921, H05B 102

Patent

active

051091518

ABSTRACT:
A controller 3a for a Diesel engine, supplied with source voltage from a DC voltage source (battery) 1 and controlling the current supply to the glow plug 4a via a glow relay 6, includes, in addition to a microcomputer 13 and a reset circuit 14, etc., a source voltage step-up circuit 2. The source voltage step-up circuit 2 includes a source voltage detection circuit, and when the source voltage drops below a predetermined normal level, the circuit steps it up (i.e., raises it) to above the normal level. Thus, even when the engine is started at a low temperature and the source voltage falls below the normal level during the cranking of the engine, the glow plug 4a can be heated to a temperature at which the engine can be started.

REFERENCES:
patent: 4673797 (1987-06-01), Weirick
patent: 4884018 (1989-11-01), Meuret et al.
patent: 4939347 (1990-07-01), Masaka et al.
patent: 4967137 (1990-10-01), Canitrot et al.
patent: 4994683 (1991-02-01), Yamamoto

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