Undulated interlocking housing-endplate interface geometry

Patent metadata

Field	Value
Publication number	US-12330099-B2
Application number	US-202318196550-A
Country	US
Kind code	B2
Filing date	May 12, 2023
Priority date	Feb 21, 2017
Publication date	Jun 17, 2025
Grant date	Jun 17, 2025

Abstract

A filtration system having an undulated interlocking housing-endplate interface geometry is described. In the filtration system, a filter element endplate and a filter housing component (e.g., a shell housing, a filter mounting head, etc.) meet at an interface. The filter housing component includes an undulating or repeating pattern that meshes with a matching undulating or repeating pattern on the endplate of the filter element. The undulating or repeating pattern prevents the filter element from freely rotating with respect to the filter housing component of the filtration system.

First claim

What is claimed is:

1. A filter element, comprising:
filter media; and
an endplate coupled to the filter media, the endplate comprising:
a first wall projecting radially outward of the endplate along an entire circumference of the endplate, the first wall having a pattern defining an outer circumferential uneven surface structured to mesh with a matching pattern formed on an inner surface of a shell housing when the filter element is installed in the shell housing, an upper surface of the first wall defining a gasket retaining lip, a lower surface of the first wall defining a housing support lip, the gasket retaining lip and the housing support lip each having a variable outer radius that matches a profile of the outer circumferential uneven surface, the housing support lip being a planar surface that is continuous along an entire perimeter of the endplate; and
a gasket retaining wall engaged with and extending axially away from the gasket retaining lip.

2. The filter element of claim 1 , wherein the gasket retaining wall defines at least a portion of at least one opening extending through the endplate.

3. The filter element of claim 1 , further comprising an axial seal member, the axial seal member engaged with the gasket retaining wall and the gasket retaining lip.

4. The filter element of claim 3 , wherein the gasket retaining lip defines a radially undulating support surface for the axial seal member.

5. The filter element of claim 1 , wherein the endplate defines a top surface facing away from the filter media and a bottom surface parallel to and displaced from the top surface, the gasket retaining wall oriented perpendicular to the top surface, the gasket retaining lip parallel to the top surface, the gasket retaining lip being contiguous with the gasket retaining wall, the gasket retaining lip and the gasket retaining wall forming a first portion of a first channel that is configured to axially receive an outer seal member therein.

6. The filter element of claim 5 , wherein the endplate further comprises an inner gasket retaining lip and an inner gasket retaining wall, the inner gasket retaining wall spaced radially inward from the gasket retaining wall, the inner gasket retaining lip and the inner gasket retaining wall forming a second channel configured to receive an inner seal member therein.

7. The filter element of claim 6 , the endplate further defining at least one inlet between the gasket retaining wall and the inner gasket retaining wall, the endplate further defining an opening radially inward from the inner gasket retaining wall.

8. The filter element of claim 1 , the pattern comprising a plurality of curved surfaces projecting radially outwards of the endplate and a plurality of indents located between each of the plurality of curved surfaces and projecting radially inwards into the first wall.

9. The filter element of claim 8 , wherein the plurality of curved surfaces and the plurality of indents together form an undulating pattern.

10. The filter element of claim 8 , wherein each of the plurality of indents defines a curved axial notch in between and connecting two of the plurality of curved surfaces.

11. A filtration system, comprising:
a cover;
a shell housing removably coupled to the cover, the shell housing defining a central compartment, the shell housing including a second wall having the matching pattern; and
the filter element of claim 1 positioned within the central compartment such that the first wall meshes with the second wall.

12. The filtration system of claim 11 , further comprising a seal member that is axially engaged with the cover, the first wall, and the second wall.

13. The filtration system of claim 11 , the shell housing further comprising an endplate retaining lip extending radially away from the second wall, the housing support lip engaged with the endplate retaining lip.

14. A filtration element, comprising:
filter media;
an endplate coupled to the filter media, the endplate comprising a wall disposed along an entire outer perimeter of the endplate, the wall having a pattern defining an outer circumferential uneven surface structured to mesh with a matching pattern formed on an inner surface of a shell housing when the filtration element is installed in the shell housing, a lower surface of the wall defining a housing support lip having a variable outer radius that matches a profile of the outer circumferential uneven surface, the housing support lip being a planar surface that is continuous along an entire perimeter of the endplate; and
an axial seal member engaged with an upper surface of the endplate at an outer radius of the upper surface, the upper surface having a variable outer radius that matches the profile of the outer circumferential uneven surface.

15. The filtration element of claim 14 , wherein the upper surface defines a radially undulating support surface for the axial seal member.

16. The filtration element of claim 14 , wherein the pattern comprises a plurality of curved surfaces projecting radially outwards of the endplate and a plurality of indents located between each of the plurality of curved surfaces and projecting radially inwards into the wall.

17. A filtration system, comprising:
a filter element comprising:
filter media; and
an endplate coupled to the filter media, the endplate comprising:
an endplate gasket retaining wall protruding axially away from the filter media, and
a first undulated wall engaged with and protruding radially away from the endplate gasket retaining wall, the first undulated wall having a pattern that defines an outer circumferential uneven surface, a lower surface of the first undulated wall defining a housing support lip having a variable outer radius that matches a profile of the outer circumferential uneven surface, the housing support lip being a planar surface that is continuous along an entire perimeter of the endplate;

a shell housing defining a central compartment, the shell housing including a second undulated wall having an inner surface that matches the pattern, the filter element positioned within the central compartment such that the first undulated wall meshes with the second undulated wall; and
a seal member engaged with an upper surface of the first undulated wall and the second undulated wall along an entire circumference of the first undulated wall and the second undulated wall.

18. The filtration system of claim 17 , wherein the shell housing further comprises a shell gasket retaining wall extending axially away from the second undulated wall, the seal member disposed in a channel defined by the endplate gasket retaining wall, the first undulated wall, the second undulated wall, and the shell gasket retaining wall.

19. The filtration system of claim 17 , further comprising a cover removably coupled to the shell housing through a threaded connection, the seal member sealing axially against the cover when the cover is installed onto the shell housing.

20. The filtration system of claim 17 wherein a height of the first undulated wall is approximately equal to a height of the second undulated wall.

Assignees

• Cummins Filtration Ip Inc

Inventors

• Ouweleen Philip M
• Jiang Zemin
• Loftis Ted S
• Kothakota Karthik
• Sekar Mano Raj
• Johnson Mark J
• Wells Aaron M
• Bannister Robert A
• Crooks Joshua
• Palmer Brian M
• Grabein Sean M
• Oren Connor D

Classifications

• B01D2265/026

  with means for avoiding false mounting · CPC title

• B01D2265/021

  Anti-rotational means · CPC title

• B01D2201/52

  Filter identification means · CPC title

• B01D2201/4092

  Threaded sections, e.g. screw · CPC title

• B01D2201/4076

  Anti-rotational means · CPC title