In tank fuel pump and reservoir with stand pipe

Details In tank fuel pump and reservoir with stand pipe In tank fuel pump and reservoir with stand pipe

1997-07-09

1998-09-22

Moulis, Thomas N.

Internal-combustion engines

Charge forming device

With fuel pump

123514, F02M 3704

Patent

active

058099751

ABSTRACT:
For a fuel pump mounted within a module in a vehicle fuel tank, a stand pipe is provided in communication at its upper end with a return fuel reservoir and at its lower end with the inlet of the fuel pump to deliver fuel from the return fuel reservoir when the level of fuel in the reservoir rises above the upper end of the stand pipe. The return fuel reservoir has an inlet in communication with a fuel return line through which excess fuel in the fuel system is delivered to the return fuel reservoir. This "weathered" return fuel is delivered to the fuel pump inlet through the stand pipe when the level of fuel in the reservoir is sufficiently high to prefer use of the weathered return fuel by the fuel pump.

REFERENCES:
patent: 4697995 (1987-10-01), Tuckey
patent: 4747388 (1988-05-01), Tuckey
patent: 4807582 (1989-02-01), Tuckey
patent: 4831990 (1989-05-01), Tuckey
patent: 4869225 (1989-09-01), Nagata et al.
patent: 4893593 (1990-01-01), Sejimo et al.
patent: 4893647 (1990-01-01), Tuckey
patent: 4964787 (1990-10-01), Hoover
patent: 5050567 (1991-09-01), Suzuki
patent: 5146901 (1992-09-01), Jones
patent: 5257916 (1993-11-01), Tuckey
patent: 5456235 (1995-10-01), Porter

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