Diesel engine shut-down device

Details Diesel engine shut-down device Diesel engine shut-down device

1990-02-22

1991-09-24

Kamen, Noah P.

Internal-combustion engines

Accessories

Covers, trays, vibrators, corrosion inhibitors, air filters

123DIG11, F02B 7700

Patent

active

050505483

ABSTRACT:
The shut-down device stops a diesel engine by cutting the fuel supply or the intake air supply. The device comprises a timer having a capacitor which outputs engine stop signals for a predetermined time when a key switch is turned off, and a drive element having a switching device which supplies an actuator for stopping the engine with operation signals in accordance with the engine stop signals from the capacitor. The switching device includes an NPN-type transistor to receive the engine stop signals as a base voltage and to be connected to a starter of the engine, and a PNP-type transistor to receive a divided voltage from a battery in accordance with the starter operation and to output the operation signals to the actuator.

REFERENCES:
patent: 3354877 (1967-11-01), Zub et al.
patent: 3741178 (1973-06-01), Cedar

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