Internal-combustion engines – Charge forming device – Fuel flow regulation between the pump and the charge-forming...
Patent
1986-08-20
1989-08-29
Miller, Carl Stuart
Internal-combustion engines
Charge forming device
Fuel flow regulation between the pump and the charge-forming...
123509, 137263, F02M 3900
Patent
active
048607142
ABSTRACT:
An in-tank, fuel pump assembly for fuel-injected engines is provided which includes a reservoir having a supply port for supplying fuel to the engine and a return port for receiving fuel returning from the engine. Within the reservoir are (1) an electrically-operated, high pressure pump, (2) a jet pump located at the bottom of the reservoir for entraining fuel into the reservoir, (3) a valve associated with the return port, and (4) a valve associated with the supply port. The output of the high pressure pump is routed to the jet pump and to the two valves whereby when the high pressure pump is not operating, both valves are closed, and when the high pressure pump is operating, both valves are open and the jet pump entrains fuel into the reservoir. The jet pump is sized to entrain more fuel into the reservoir than leaves the reservoir through the supply port thus producing a net flow of fuel from the bottom to the top of the reservoir. As a result of this flow and the arrangement of the various components of the assembly, cool fuel from the main fuel tank is supplied to the engine rather than hot fuel returning from the engine through the return port, thus avoiding the hot fuel problems experienced in the prior art.
REFERENCES:
patent: 1953808 (1934-04-01), Kenneweg
patent: 3101771 (1963-08-01), McCuen
patent: 3443519 (1969-05-01), White
patent: 4175527 (1979-11-01), Sanada
patent: 4397333 (1983-08-01), Liba
patent: 4409930 (1983-10-01), Bury
patent: 4449723 (1984-05-01), Shiratsulhi
patent: 4503885 (1985-03-01), Hall
patent: 4546750 (1985-10-01), Brunell
patent: 4672937 (1987-06-01), Fales
patent: 4683864 (1987-08-01), Bucci
Klee Maurice M.
Miller Carl Stuart
Whitehead Engineered Products, Inc.
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