Filter element having end cap seal and filter assembly

Patent metadata

Field	Value
Publication number	US-9636608-B2
Application number	US-201414163641-A
Country	US
Kind code	B2
Filing date	Jan 24, 2014
Priority date	Jan 24, 2014
Publication date	May 2, 2017
Grant date	May 2, 2017

Abstract

A filter element may include a tubular member including an end portion at least partially defining an inlet port configured to provide flow communication to a filter medium of the filter element, and at least partially defining an outlet port configured to provide flow communication from the filter medium. The filter element may further include a filter medium associated with the tubular element, and an end cap associated with the end portion of the tubular member and the filter medium. The end cap may include a plate transverse to the longitudinal axis of the tubular member, and a sealing wall coupled to the plate and extending transverse to the plate. The sealing wall may include a seal portion configured to be compressed between a filter canister and a portion of a filter base to provide a seal between the filter canister and the portion of the filter base.

First claim

What is claimed is:

1. A filter element comprising:
a tubular member having a longitudinal axis and including an end portion at least partially defining an inlet port configured to provide flow communication to a filter medium of the filter element, and at least partially defining an outlet port configured to provide flow communication from the filter medium, wherein the filter medium is configured to filter particles from fluid passing through the filter medium; and
an end cap associated with the end portion of the tubular member and the filter medium, the end cap including:
a plate transverse to the longitudinal axis of the tubular member, the plate having an end cap aperture through which the end portion of the tubular member is received; and
a sealing wall coupled to the plate and extending transverse to the plate and in the same axial direction as the filter medium, the sealing wall configured to be received around and engaged with an outer peripheral surface of an end portion of a canister wall of a filter canister, the sealing wall further including a seal portion configured to be compressed between the filter canister and a portion of a filter base to provide a seal between the filter canister and the portion of the filter base, wherein the filter element is configured such that fluid passing through the filter element from the inlet port to the outlet port passes through the filter medium.

2. The filter element of claim 1 , further including a retainer wall coupled to and extending transverse to the plate of the end cap, the retainer wall being located between the end cap aperture and the sealing wall and positioned radially outward of the filter medium.

3. The filter element of claim 2 , wherein the plate is substantially circular and the sealing wall is an annular wall.

4. The filter element of claim 1 , wherein the seal portion is configured to be compressed in a direction transverse to the longitudinal axis of the tubular member.

5. The filter element of claim 1 , wherein the plate is substantially circular and the sealing wall is an annular wall, and wherein the seal portion is configured to be compressed in a radial direction.

6. The filter element of claim 1 , wherein the seal portion is formed from an elastically-deformable material.

7. The filter element of claim 1 , wherein the seal portion has a cross-section and the sealing wall has a thickness, and wherein the cross-section of the seal portion has a width greater than the width of the sealing wall.

8. A filter element comprising:
a tubular member having a longitudinal axis and including an end portion at least partially defining an inlet port configured to provide flow communication to a filter medium of the filter element, and at least partially defining an outlet port configured to provide flow communication from the filter medium, wherein the filter medium is configured to filter particles from fluid passing through the filter medium; and
an end cap associated with the end portion of the tubular member and the filter medium, the end cap including:
a plate transverse to the longitudinal axis of the tubular member, the plate having an end cap aperture through which the end portion of the tubular member is received; and
a sealing wall coupled to the plate and extending transverse to the plate and in the same axial direction as the filter medium, the sealing wall configured to be received around and engaged with an outer peripheral surface of an end portion of a canister wall of a filter canister, the sealing wall further including a seal portion configured to be compressed between the filter canister and a portion of a filter base in a direction transverse to the longitudinal axis of the tubular member to provide a seal between the filter canister and the portion of the filter base, wherein the filter element is configured such that fluid passing through the filter element from the inlet port to the outlet port passes through the filter medium.

9. The filter element of claim 8 , wherein the plate is substantially circular and the sealing wall is an annular wall, and wherein the seal portion is configured to be compressed between the filter canister and the portion of the filter base in a radial direction.

10. A filter assembly comprising:
a filter base configured to be coupled to a machine;
a filter canister having an open end, 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 end portion at least partially defining an inlet port and at least partially defining an outlet port;
a filter medium associated with the tubular element and configured to filter particles from fluid passing through the filter medium; and
an end cap associated with the end portion of the tubular member and the filter medium, the end cap including:
a plate transverse to the longitudinal axis of the tubular member, the plate having an end cap aperture through which the end portion of the tubular member is received; and
a sealing wall coupled to the plate and extending transverse to the plate toward the closed end of the filter canister, the sealing wall received around and engaged with an outer peripheral surface of the open end of the filter canister and including a seal portion configured to be compressed between the filter canister and a portion of the filter base to provide a seal between the filter canister and the portion of the filter base,

wherein the filter element is configured such that fluid passing through the filter element from the inlet port to the outlet port passes through the filter medium.

11. The filter assembly of claim 10 , wherein the filter canister and the filter base are configured to form a pocket upon assembly, and wherein the seal portion is received in the pocket and compressed between the filter canister and the portion of the filter base in the pocket to provide the seal between the filter canister and the portion of the filter base.

12. The filter assembly of claim 10 , further including a retainer wall coupled to and extending transverse to the plate of the end cap, the retainer wall being located between the end cap aperture and the sealing wall and positioned radially outward of the filter medium.

13. The filter assembly of claim 12 , wherein the plate is substantially circular and the sealing wall is an annular wall.

14. The filter assembly of claim 10 , wherein the seal portion is configured to be compressed in a direction transverse to the longitudinal axis of the tubular member.

15. The filter assembly of claim 10 , wherein the plate is substantially circular and the sealing wall is an annular wall, and wherein the seal portion is configured to be compressed between the filter canister and the portion of the filter base in a radial direction.

16. The filter assembly of claim 10 , wherein the seal portion is formed from an elastically-deformable material.

17. The filter assembly of claim 10 , wherein the seal portion has a cross-section and the sealing wall has a thickness, and wherein the cross-section of the seal portion has a width greater than the width of the sealing wall.

18. The filter assembly of claim 10 , further including a retainer mechanism configured to secure the filter canister to the filter base such that seal portion is compressed.

19. The filter assembly of claim 18 , wherein the retainer mechanism includes retainer strip configured to be received in a gr

Assignees

• Caterpillar Inc

Inventors

• Morris Bryant A
• Ries Jeffrey R

Classifications

• B01D29/11 Primary

  with bag, cage, hose, tube, sleeve or like filtering elements · CPC title

• B01D2201/304

  Seals or gaskets · CPC title

• B01D29/90

  for feeding · CPC title

• F16N39/06

  by filtration (filters in general B01D; magnetic separators B03C1/00; {centrifugal separators or filters B04B5/005}) · CPC title

• B01D2201/291

  End caps · CPC title