Internal-combustion engines – Charge forming device – With fuel pump
Patent
1990-10-15
1991-09-03
Miller, Carl Stuart
Internal-combustion engines
Charge forming device
With fuel pump
123447, 123450, F02M 4106
Patent
active
050443453
ABSTRACT:
A distributor type fuel injection pump has a main pumping plunger and an auxiliary plunger operable in synchronism by a cam. Also provided is a fluid pressure operable spill valve which is opened when the pressure of fluid developed by the auxiliary plunger becomes sufficiently high. The fluid displaced by the auxiliary plunger causes movement of a shuttle and the movement of the shuttle is halted to cause operation of the spill valve, by an hydraulic lock which is created when the movement of the shuttle closes an escape path from the end of the cylinder in which it is located.
REFERENCES:
patent: 2810376 (1957-10-01), Aldinger
patent: 4401084 (1983-08-01), Jarrett et al.
patent: 4530337 (1985-07-01), Laufer
patent: 4696271 (1987-09-01), Lebianc
patent: 4896645 (1990-01-01), Potter
patent: 4969442 (1990-11-01), Taue et al.
Lucas Industries Public Limited Company
Miller Carl Stuart
Moulis Thomas N.
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