Filter element having cover portion and filter assembly

Patent metadata

Field	Value
Publication number	US-9527017-B2
Application number	US-201414163489-A
Country	US
Kind code	B2
Filing date	Jan 24, 2014
Priority date	Jan 24, 2014
Publication date	Dec 27, 2016
Grant date	Dec 27, 2016

Abstract

A filter element may include a tubular member, and tubular member may include a partition at least partially defining first and second chambers. The tubular member may further include an end portion at least partially defining an inlet port configured to provide flow communication into the first chamber, and at least partially defining an outlet port configured to provide flow communication from the second chamber. The tubular member may further include a cover portion at the end portion of the tubular member, with the cover portion extending from the partition. The cover portion may be configured to at least partially cover a longitudinal end of the second chamber. The filter element may further include a filter medium associated with at least one outlet aperture and the at least one inlet aperture of the tubular member.

First claim

What is claimed is:

1. A filter element comprising:
a tubular member having a longitudinal axis and including:
an exterior wall extending in the longitudinal direction;
a partition at least partially defining a first chamber and at least partially defining a second chamber, the partition extending longitudinally in the tubular member and being configured to prevent flow communication between the first chamber and the second chamber within the tubular member;
an end portion at least partially defining an inlet port configured to provide flow communication into the first chamber, and at least partially defining an outlet port configured to provide flow communication from the second chamber, wherein the outlet port passes through the exterior wall of the tubular member extending in a radial direction relative to the longitudinal axis of the tubular member between a radially inner peripheral surface portion of the exterior wall and a radially outer peripheral surface portion of the exterior wall;
at least one outlet aperture in the exterior wall of the tubular member configured to provide flow communication out of the first chamber, wherein the at least one outlet aperture extends in a radial direction relative to the longitudinal axis of the tubular member between a radially inner peripheral surface portion of the exterior wall and a radially outer peripheral surface portion of the exterior wall;
at least one inlet aperture in the exterior wall of the tubular member configured to provide flow communication into the second chamber, wherein the at least one inlet aperture extends in a radial direction relative to the longitudinal axis of the tubular member between a radially inner peripheral surface portion of the exterior wall and a radially outer peripheral surface portion of the exterior wall; and
a cover portion at the end portion of the tubular member, the cover portion extending from the partition, wherein the cover portion is configured to at least partially cover a longitudinal end of the second chamber with respect to the longitudinal direction; and

a filter medium associated with the at least one outlet aperture and the at least one inlet aperture,
wherein the filter element is configured such that fluid passing through the filter element from the inlet port to the outlet port passes through both the first chamber and the second chamber.

2. The filter element of claim 1 , wherein the tubular member has a cross-section transverse to the longitudinal axis including a first chamber cross-section and a second chamber cross-section, and wherein the cover portion at least partially covers the second chamber cross-section with respect to the longitudinal direction.

3. The filter element of claim 1 , wherein the cover portion extends at an oblique angle with respect to the longitudinal axis of the tubular member.

4. The filter element of claim 1 , wherein the cover portion is configured to substantially prevent flow of fluid into the second chamber without first passing through the first chamber.

5. The filter element of claim 1 , wherein the cover portion is configured to substantially prevent flow of fluid into the second chamber without first passing through the filter medium.

6. The filter element of claim 1 , wherein the tubular member further includes at least a first barrier and a second barrier extending radially from the tubular member.

7. The filter element of claim 6 , wherein the filter medium includes a first portion associated with the at least one outlet aperture, and a second portion associated with the at least one inlet aperture, and wherein the first portion of the filter medium extends between the first and second barriers in association with the first chamber, and the second portion of the filter medium extends between the first and second barriers in association with the second chamber.

8. The filter element of claim 7 , wherein the filter element is configured such that fluid passing through the filter element flows into the inlet port in the end portion, into the first chamber, out of the at least one outlet aperture, through the first portion of the filter medium, to the second portion of the filter medium, through the second portion of the filter medium into the at least one inlet aperture and into the second chamber, and out of the filter element through the outlet port.

9. The filter element of claim 1 , wherein the tubular member has at least one cross-section, and the at least one cross-section is at least one of substantially circular, substantially oval-shaped, and substantially polygonal.

10. The filter element of claim 1 , further including a first end cap and a second end cap, wherein the first end cap is coupled at a longitudinal end of the tubular member adjacent the inlet port and the outlet port, and the second end cap is coupled at a longitudinal end of the tubular member opposite the first end cap.

11. The filter element of claim 1 , wherein the partition includes a first segment and a second segment, and wherein the first segment and second segment meet at an angle with respect to each other, and the angle ranges from about 20 degrees to about 180 degrees.

12. A filter element comprising:
a tubular member having a longitudinal axis and including:
an exterior wall extending in the longitudinal direction;
a partition at least partially defining a first chamber and at least partially defining a second chamber, the partition extending longitudinally in the tubular member and being configured to prevent flow communication between the first chamber and the second chamber within the tubular member;
an end portion at least partially defining an inlet port configured to provide flow communication into the first chamber, and at least partially defining an outlet port configured to provide flow communication from the second chamber;
at least one outlet aperture in the exterior wall of the tubular member configured to provide flow communication out of the first chamber, wherein the at least one outlet aperture extends in a radial direction relative to the longitudinal axis of the tubular member between a radially inner peripheral surface portion of the exterior wall and a radially outer peripheral surface portion of the exterior wall;
at least one inlet aperture in the exterior wall of the tubular member configured to provide flow communication into the second chamber, wherein the at least one inlet aperture extends in a radial direction relative to the longitudinal axis of the tubular member between a radially inner peripheral surface portion of the exterior wall and a radially outer peripheral surface portion of the exterior wall; and
a cover portion at the end portion of the tubular member, the cover portion extending from the partition; and

a filter medium associated with the at least one outlet aperture and the at least one inlet aperture,
wherein the tubular member has a cross-section transverse to the longitudinal axis including a first chamber cross-section and a second chamber cross-section, and wherein the cover portion at least partially covers the second chamber cross-section with respect to the longitudinal direction.

13. A filter assembly comprising:
a filter base configured to be coupled to a machine;
a canister having an open end and a closed end and being configured to be coupled to the filter base; and
a filter element configured to be received in the canister, the filter element including:
a tubular member having a longitudinal axis and including:
an exterior wall extending in the longitudinal direction;
a partition at least partially defining a first chamber and at least partially defining a sec

Assignees

• Caterpillar Inc

Inventors

• Morris Bryant A
• Ries Jeffrey R

Classifications

• B01D29/56

  in series connection · CPC title

• B01D29/90

  for feeding · CPC title

• B01D36/001

  Filters in combination with devices for the removal of gas, air purge systems · CPC title

• B01D2201/40

  Special measures for connecting different parts of the filter · CPC title

• B01D35/30

  Filter housing constructions · CPC title