Internal-combustion engines – Igniters – Incandescent
Patent
1975-02-11
1976-07-13
Burns, Wendell E.
Internal-combustion engines
Igniters
Incandescent
123139AQ, 123140R, F02D 100, F02D 104
Patent
active
039687791
ABSTRACT:
A fuel injection pump with a control system for regulating the quantity and timing of the delivery of fuel to an associated engine is disclosed. In the control system, three pistons, slidably mounted in parallel bores, are provided. One of the pistons is powered so that it assumes an axial position indicative of engine speed. A second piston is powered to assume an axial position indicative of the quantity of fuel being delivered by the pump. The first and second pistons are each provided with a cam surface, and cam followers controlled thereby interconnect these pistons with the third piston to control the axial position of the third piston and the timing of delivery of fuel by the pump. A second cam surface on the speed positioned piston is connected to a variable stop which varies the maximum amount of fuel which can be delivered by the pump in accordance with speed and a second cam surface on the fuel quantity positioned piston actuates a feedback control to adjust the amount of fuel delivered by the pump so as to maintain the selected engine speed. Various additional modifying or override controls are provided to selectively modify the operation of the pump in accordance with other parameters, such as manifold air pressure, or during starting, or in case of malfunction.
REFERENCES:
patent: 3185140 (1965-05-01), Cummins, Jr.
patent: 3557765 (1971-01-01), Nystrom
patent: 3598097 (1971-08-01), Stuttgart
patent: 3633559 (1972-01-01), Eheim
patent: 3698369 (1972-10-01), Vuaille
patent: 3771506 (1973-11-01), Davis
patent: 3910724 (1975-10-01), Okamoto
Burns Wendell E.
Cranson, Jr. James W.
Stanadyne Inc.
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