Diesel engine shut-down device
AssigneeFuji Jukogyo Kabushiki Kaisha
InventorMasami Minegishi
Life of this patent
Estimating the term…
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 divdied voltage from a battery in accordance with the starter operation and to output the operation signals to the actuator.
Claims6
A diesel engine shut-down device, provided on a fuel system comprising a solenoid having an excitation coil in a cylinder and a plunger to advance from and retreat in one end of said cylinder, a fuel injection pump mounted on an engine and having a control rack to regulate an injection quantity of the pump, a governor lever rotated by a stop lever mounted on an end of said plunger, a governor shaft for rotatably supporting said governor lever and for being moved by a governor weight, a control link being rotatably supported by said shaft and pulling said governor lever by a spring, and a control lever for regulating a position of said governor lever by rotation through a second spring, comprising:
- timer means for outputting an engine stop signal for a predetermined time when a key switch is turned off;
- and
- drive means for actuating said solenoid to stop the engine through a switching device in accordance with said engine stop signal from said timer means.
Dependencies are inferred from the claim text.