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U.S. Department of Energy
Office of Scientific and Technical Information

Liquid fuel pumping apparatus

Patent ·
OSTI ID:6071062
A liquid fuel pumping apparatus for supplying fuel to an internal combustion engine includes a high pressure pump having an outlet for connection in use to an injection nozzle. Fuel is supplied by a low pressure pump to the high pressure pump and the amount of fuel delivered through the outlet is controlled by a spill valve which is electrically controlled. In the event of failure of the spill valve in the control system which controls the valve, the valve is arranged to move to the open position. In order to allow further operation of the associated engine valve means including a valve member which can be moved to an operative position, is provided, the valve means prevents flow of fuel through the spill valve and also throttles the fuel supply to the high pressure pump thereby allowing a limited fuel supply to the associated engine.
Assignee:
Lucas Industries Public Limited Company (United Kingdom)
Patent Number(s):
US 4474158
OSTI ID:
6071062
Country of Publication:
United States
Language:
English