Filter assembly with threaded collection bowl
AssigneeParker-Hannifin Corporation
InventorsPeter Popoff, John F. Church, Walter H. Stone
Life of this patent
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Abstract
A filter assembly and associated collection bowl for a single or dual contaminant collection zone arrangement use a self-sealing o-ring in combination with a threaded mating arrangement in order to withstand high pressure differentials. The filter assembly may include an end cap having a plurality of downwardly projecting ribs distinct from a threaded connector ring upon which the end cap rests or the ribs may be integral with the connector ring and separate from the end cap. The lower end of the filter housing includes a number of contaminant channels between adjacent pairs of the ribs, the contaminant channels leading to corresponding contaminant outlets.
Claims13
A fuel filter comprising:
- a casing having a cylindrical peripheral wall and first and second fuel ports to define a fuel flow path through said filter unit,
- a filter medium extending in a loop within said casing and separating a central fuel chamber from a peripheral fuel chamber, said peripheral fuel chamber disposed directly between said filter medium and said casing, said filter medium disposed intermediate said first and second fuel ports in said fuel flow path,
- a peripheral contaminant outlet,
- a plurality of ribs forming contaminant channels in fluid communication with said contaminant outlet and operable to allow contaminants to directly exit from said peripheral fuel chamber,
- an end cap disposed below said filter medium, said contaminant channels extending inwardly below said end cap, and
- an annular threaded portion distinct from and disposed below said end cap and having said ribs thereon and operable to engage mating threads of a contaminant collection bowl.
Dependencies are inferred from the claim text.