Caterpillar Inc.
FLUID FILTER

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.