Internal-combustion engines – Charge forming device – With fuel pump
Patent
1994-12-06
1995-10-10
Moulis, Thomas N.
Internal-combustion engines
Charge forming device
With fuel pump
123514, 137572, F02M 3704
Patent
active
054562350
ABSTRACT:
An engine fuel supply system includes a fuel pumping unit located outside the fuel tank for pumping fuel from the tank to the engine. The pumping unit includes a motor operated fuel pump positioned in a reservoir that is partitioned to form a lower chamber and an upper chamber. The pump inlet is connected to the lower chamber for pumping fuel into a pressure line leading to the engine. Excess fuel not used by the engine cylinder injectors is returned to the upper chamber for eventual flow into the lower chamber and recycling through the pump. The upper chamber provides the pump with an emergency supply of fuel that can be called upon when the fuel tank is in an empty condition. The upper chamber also acts as a cooling device for cooling heated excess fuel returned from the engine to the pumping unit.
REFERENCES:
patent: 4546750 (1985-10-01), Brunell et al.
patent: 4672937 (1987-06-01), Fales et al.
patent: 4869225 (1989-09-01), Nagata et al.
patent: 4893647 (1990-01-01), Tuckey
patent: 4928657 (1990-05-01), Asselin
patent: 4971017 (1990-11-01), Beakley
patent: 4974570 (1990-12-01), Szwargulski et al.
patent: 5050567 (1991-09-01), Suzuki
patent: 5218942 (1993-06-01), Coha et al.
patent: 5363827 (1994-11-01), Siekmann
Carter Automotive Company, Inc.
Moulis Thomas N.
Shurupoff Lawrence J.
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