Vented fuel module reservoir

Details Vented fuel module reservoir Vented fuel module reservoir

1994-05-17

1995-06-27

Miller, Carl S.

Internal-combustion engines

Charge forming device

Fuel flow regulation between the pump and the charge-forming...

123516, 137571, F02M 3704

Patent

active

054270740

ABSTRACT:
A main fuel tank in an automotive vehicle contains a reservoir in which is located a two-stage electrically operated pump. The first stage is a jet pump which draws fuel from the main tank and delivers it to the reservoir. The second stage is a rotary pump which draws from the reservoir and delivers to the vehicle engine. The reservoir has overflow restriction means which allows air to vent while the reservoir is filling but which restricts fuel flow when the reservoir is full. This creates pressure in the reservoir to create back pressure against and shut down flow from the jet pump and also increase pressure on the fuel inlet of the main pump thus increasing the efficiency of the main fuel pump.

REFERENCES:
patent: 4747388 (1988-05-01), Tuckey
patent: 4869225 (1989-09-01), Nagata
patent: 5050567 (1991-09-01), Suzuki
patent: 5070849 (1991-12-01), Rich
patent: 5139000 (1992-08-01), Sawert
patent: 5146901 (1992-09-01), Jones
patent: 5218942 (1993-06-01), Coha
patent: 5253628 (1993-10-01), Brown
patent: 5257916 (1993-11-01), Tuckey
patent: 5263459 (1993-11-01), Talaski

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