Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1996-04-30
1997-11-11
Miller, Carl S.
Internal-combustion engines
Charge forming device
Fuel injection system
125450, F02M 4100
Patent
active
056852754
ABSTRACT:
A fuel injection pump having a pump rotor with a pump body and distributor rotor in coaxial alignment, the pump body having a pumping chamber with one or more diametral pumping plunger bores with opposed pumping plungers; a cam ring surrounding the pump body for reciprocating the pumping plungers for supplying intake charges of fuel to the pumping chamber and delivering high pressure charges of fuel for fuel injection; a spill valve having a coaxial valve bore in the pump body intersecting the diametral pumping plunger bore(s), a spill valve member having a pair of diametrically opposed spill ports with transverse leading edges, a self-centering actuator shoe mounted within a diametral slot in the spill valve member for engagement by radial actuating rods for translating inward radial movement of the actuating rods into axial movement of the spill valve member to its open position for spill termination of each fuel injection event in fixed synchronism with the pumping plungers; and a transverse connector bore in the distributor rotor with an inlet port trailing a distributor port for returning fuel from each active fuel line to an inactive fuel line immediately after spill termination of the fuel injection event.
REFERENCES:
patent: 3319616 (1967-05-01), Glikin
patent: 4232644 (1980-11-01), Potter
patent: 4246876 (1981-01-01), Bouwkamp
patent: 4336981 (1982-06-01), Overfield
patent: 4446835 (1984-05-01), Mowbray
patent: 4453896 (1984-06-01), Villardo
patent: 4499884 (1985-02-01), Skinner
patent: 4896645 (1990-01-01), Potter
patent: 4920940 (1990-05-01), Harris
patent: 5012785 (1991-05-01), Long
patent: 5413081 (1995-05-01), Colliweborn
Miller Carl S.
Stanadyne Automotive Corp.
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