Filtered fuel pump module

Details Filtered fuel pump module Filtered fuel pump module

1997-12-08

1999-10-05

Miller, Carl S.

Internal-combustion engines

Charge forming device

With fuel pump

123510, F02M 3704

Patent

active

059607750

ABSTRACT:
A fuel pump module disposed within a vehicle fuel tank has a fuel pump therein to draw fuel from the fuel tank and deliver that fuel under pressure to the vehicle engine, and a jet pump driven by the fuel pump to lower the pressure within the module to draw fuel from the fuel tank through a filtered inlet of the module when the fuel pump is operating. When the fuel pump is not operating, such as when the vehicle is not in use, the jet pump ceases to operate and the pressure within the module returns to that of the fuel tank. When the level of fuel in the fuel tank is lower than that within the fuel pump module and the pump is turned off, a portion of the fuel within the module returns to the fuel tank through the filtered inlet of the module thereby dislodging at least some of the contaminants trapped by the filter.

REFERENCES:
patent: 4763632 (1988-08-01), Andreasson
patent: 4974570 (1990-12-01), Szwargulski et al.
patent: 5070849 (1991-12-01), Rich
patent: 5139000 (1992-08-01), Sawert
patent: 5363827 (1994-11-01), Sikmann
patent: 5452701 (1995-09-01), Tuckey
patent: 5680847 (1997-10-01), Begley
patent: 5699773 (1997-12-01), Kleppner
patent: 5718208 (1998-02-01), Brautigan
patent: 5787865 (1998-08-01), Harris

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