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US 2020/0269167 A1Published application
Fluid filter
AssigneeCaterpillar Inc.
InventorsPhilip Carl Spengler, Bart A. Fisher
Life of this patent
Estimating the term…
Abstract
A filter element may include and endcap, filter media extending from the endcap, and a sleeve disposed at least partially surrounding the filter media. The sleeve may include an outer surface including a plurality of protrusions and a plurality of openings may be formed through the sleeve. The protrusions may direct fluid to be filtered by the filter media along a path that allows particulates to exit the fluid prior to contacting the filter media.
Claims20
A filter element comprising:
- an endcap;
- filter media extending from the endcap in a longitudinal direction;
- and
- a sleeve at least partly surrounding the filter media, the sleeve comprising:
- a protrusion on an outer surface of the sleeve, the protrusion including an inclined surface angled relative to the longitudinal axis to direct fluid flowing along the protrusion away from the longitudinal axis;
- and
- an opening extending through the sleeve, at least a portion of the opening being relatively closer to the endcap than at least a portion of the protrusion.
4 more elements
A filter assembly comprising:
- an endcap;
- filter media extending form the endcap in a longitudinal direction;
- and
- a sleeve disposed at least partially surrounding the filter media, the sleeve comprising an outer surface including a plurality of protrusions and a plurality of openings, at least a portion of a first protrusion of the plurality of protrusions being disposed relatively farther from the endcap than a first opening of the plurality of openings to force fluid travelling generally along the outer surface in a direction toward the endcap radially outwardly from the first opening.
1 more element
A filter assembly comprising:
- a housing including a housing sidewall extending in a longitudinal direction between a closed end and an opposite, open end, the housing sidewall and the closed end defining an interior volume;
- an endplate disposed in the open end and comprising at least one inlet and at least one outlet;
- and
- a filter element at least partially disposed in the interior volume, the filter element comprising:
- an endcap spaced from the endplate in the longitudinal direction;
- an inner sleeve disposed between the endplate and the endcap, the inner sleeve including an inner sleeve sidewall defining a volume in fluid communication with the at least one outlet and having a plurality of holes through the sidewall;
- filter media at least partially surrounding the inner sleeve;
- and
- an outer sleeve at least partially surrounding the filter media, the outer sleeve comprising at least one protrusion and at least one opening, the outer sleeve being spaced from an inner surface of the housing sidewall and the inlet being in fluid communication with the space between the outer sleeve and the inner surface of the housing.
6 more elements
Dependencies are inferred from the claim text.