Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1982-10-28
1984-10-02
Moy, Magdalen Y. C.
Internal-combustion engines
Charge forming device
Fuel injection system
123459, 123462, 123506, 123460, F02M 3900
Patent
active
044741588
ABSTRACT:
A liquid fuel pumping apparatus for supplying fuel to an internal combustion engine includes a high pressure pump 10 having an outlet 13 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 19 which is electrically controlled. In the event of failure of the spill valve 19 in the control system 24 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 40 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.
REFERENCES:
patent: 1664610 (1928-04-01), French
patent: 3662721 (1972-05-01), Klein
patent: 3779225 (1973-12-01), Watson
patent: 4327696 (1982-05-01), Kobayashi et al.
patent: 4351283 (1982-09-01), Ament
patent: 4395987 (1983-08-01), Kobayashi et al.
Lucas Industries Public Limited Company
Moy Magdalen Y. C.
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