Undulated interlocking housing-endplate interface geometry

Patent metadata

Field	Value
Publication number	US-11724220-B2
Application number	US-201816487209-A
Country	US
Kind code	B2
Filing date	Feb 20, 2018
Priority date	Feb 21, 2017
Publication date	Aug 15, 2023
Grant date	Aug 15, 2023

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
a first endplate coupled to the filter media, the first endplate comprising:
a top surface,
a bottom surface parallel to and displaced from the top surface,
an opening passing through the top surface and the bottom surface,
a first wall positioned between the top surface and the bottom surface and projecting radially outward of the first endplate, the first wall having a pattern comprising a plurality of curved surfaces projecting radially outwards of the end plate and a plurality of indents located between each of the plurality of curved surfaces and projecting radially inwards into the first wall such that the pattern defines 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 first endplate, and
a gasket retaining wall engaged with and extending axially away from the gasket retaining lip, the gasket retaining wall at least partially defining the opening.

2. The filter element of claim 1 , wherein the gasket retaining wall is oriented perpendicular to the top surface, the gasket retaining lip parallel to the top surface, the gasket retaining lip connecting the first wall and the gasket retaining wall, the gasket retaining lip and the gasket retaining wall forming a first portion of a U-shaped channel that is configured to axially receive an outer seal member.

3. The filter element of claim 2 , wherein the first endplate further comprises an inner gasket retaining lip, a first gasket retaining wall, and a second gasket retaining wall, the first gasket retaining wall and the second gasket retaining wall perpendicular to the top surface and spaced inward from the gasket retaining wall, the inner gasket retaining lip and first gasket retaining wall and the second gasket retaining wall forming a second U-shaped channel that receives an inner seal member.

4. The filter element of claim 3 , the endplate further defining at least one inlet, wherein a first space is defined between the outer seal member and the inner seal member, the first space in fluid communication with the at least one inlet, and wherein a second space is defined inside of the inner seal member, the second space in fluid communication with the opening.

5. A filtration system comprising:
a filter mounting head having a fluid inlet and a fluid outlet;
a shell housing removably coupled to the filter mounting head through a threaded connection, 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 first wall meshes with the second wall.

6. The filtration system of claim 5 , wherein filter element is rotationally locked with respect to the shell housing.

7. The filtration system of claim 5 , wherein the first endplate is inscribed with the pattern.

8. The filtration system of claim 5 , wherein the first endplate circumscribes the pattern.

9. The filtration system of claim 5 , wherein the first endplate includes a raised tab extending from a top surface of the first endplate, the raised tab received in a circular channel of the filter mounting head.

10. The filtration system of claim 5 , further comprising an outer seal member axially engaging both the gasket retaining lip and an upper surface of the second wall.

11. The filtration system of claim 1 , wherein each of the plurality of indents defines a curved axial notch in between and connecting two of the plurality of curved surfaces.

12. The filtration system of claim 1 , wherein the gasket retaining rip and the gasket retaining wall together define a portion of a U-shaped channel, the filtration system further comprising an axial seal member disposed in the portion of the U-shaped channel so that the gasket retaining lip engages the axial seal member along an entire outer perimeter of the gasket retaining lip.

13. The filtration system of claim 12 , wherein the gasket retaining lip defines a radially non-uniform support surface for the axial seal member.

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

• B01D35/30 Primary

  Filter housing constructions · CPC title

• B01D29/15

  arranged for inward flow filtration · CPC title

• B01D46/009

  Identification of filter type or position thereof, e.g. by transponders or bar codes · CPC title

• B01D46/2414 Primary

  End caps including additional functions or special forms · CPC title

• B01D2201/295

  with projections extending in a radial outward direction, e.g. for use as a guide, spacing means · CPC title