Reverse flow cartridge

Details Reverse flow cartridge Reverse flow cartridge

1997-07-03

1999-11-16

Savage, Matthew O.

Liquid purification or separation

With repair or assembling means

Piercing or closure knock out means

210438, 210440, 210455, 210456, B01D 3500

Patent

active

059851449

ABSTRACT:
An improved fuel filter cartridge comprises a housing which defines an opening, a filter element enclosed within the housing, and a flow-reversing insert disposed within the housing between the opening and the filter element. The improved filter cartridge is preferably used with a conventional header of the type having a fuel entry port, a fuel exit port, a central first conduit for interiorly defining a first axial fuel passage which is in fluid communication with the entry port of the header. Headers used with the improved filter cartridge also include a second conduit surrounding and cooperating with the first conduit to define a second axial fuel passage therebetween, the second fuel passage being in fluid communication with the exit port of the header, and a base for mounting the filter cartridge thereto. When the filter cartridge is mounted to the base of the header, the insert, filter element and housing cooperate to define a first chamber in communication with the first conduit of the header and to define a second chamber in communication with the second conduit of the header. Fuel delivered to the exit port of the header progressively flows through the second conduit, is guided radially outwardly by the insert, flows through the filter element, flows through the first conduit and, finally, flows into the entry port of the header. Methods of using the improved filter cartridge are also disclosed.

REFERENCES:
patent: 2639036 (1953-05-01), Humber et al.
patent: 3076550 (1963-02-01), Wilhelm
patent: 5236579 (1993-08-01), Janik et al.

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