Rapid shut-off system for a truck engine
This patent describes an engine shut-off system particularly adapted for use in conjunction with a propulsion engine for an off-highway vehicle such as a large dumper truck and the like. It comprises: a supply conduit for supplying fuel to the engine and in communication with a source of fluid fuel; fuel flow shut-off valve means interposed in the conduit, the shut-off valve means including means for biasing the shutoff valve means to an open position and being actuated to a closed position by pressure fluid operated valve actuating means; and a source of pressure fluid disposed for operation from at least one of an operator's cab for the vehicle and a position in proximity to the ground surface and exterior of the vehicle for operation of the actuating means to cause the shut-off valve means to shut off fuel flow to the engine being obtained in accordance with a mathematical model of the throttle control system; and decision means for comparing the throttle position signal with the presumed value from the observer means and outputting a start command signal to drive the additional actuator when the decision means has decided that the throttle control system has failed.
- Assignee:
- Atlantic Richfield Co., Los Angeles, CA (USA)
- Patent Number(s):
- US 4995355; A
- Application Number:
- PPN: US 7-520692
- OSTI ID:
- 5752744
- Resource Relation:
- Patent File Date: 8 May 1990
- Country of Publication:
- United States
- Language:
- English
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