Oval filter with exterior elliptical radial seal and internal support structure

Patent metadata

Field	Value
Publication number	US-10918978-B2
Application number	US-201816115040-A
Country	US
Kind code	B2
Filing date	Aug 28, 2018
Priority date	May 8, 2018
Publication date	Feb 16, 2021
Grant date	Feb 16, 2021

Abstract

Various embodiments relate to a filter element. The filter element includes a first endplate that defines a first endplate opening and a second endplate. Filter media is positioned between and extending axially between the first endplate and the second endplate. The filter media defines a central opening extending axially therein. A support structure is disposed within the central opening of the filter media and is attached to the first endplate and the second endplate. The support structure includes an axial lobed extension that extends from a first end of the support structure to a second end of the support structure. The support structure is configured to resist collapse of the filter element.

First claim

What is claimed is:

1. A filter element comprising:
a first endplate defining a first endplate opening;
a second endplate;
filter media positioned between and extending axially between the first endplate and the second endplate, the filter media defining a central opening extending axially therein; and
a support structure disposed within the central opening of the filter media and attached to the first endplate and the second endplate, the support structure comprising a plurality of axial lobed extensions that are spaced apart from one another, each axial lobed extension extending from a first end of the support structure to a second end of the support structure, the support structure configured to resist collapse of the filter element.

2. The filter element of claim 1 , wherein at least one of the plurality of axial lobed extensions comprises a first set of laterally extending lobes and a second set of laterally extending lobes, the first set of laterally extending lobes extending in a first lateral direction relative to an axial direction, the second set of laterally extending lobes extending in a second lateral direction relative to the axial direction, the first lateral direction opposite to the second lateral direction.

3. The filter element of claim 2 , wherein each lobe in the first set of laterally extending lobes includes a first angled portion, a second angled portion, and a flat portion disposed between the first angled portion and the second angled portion, the first angled portion and the second angled portion angled toward a central axis of the support structure, and the flat portion being parallel to the central axis of the support structure.

4. The filter element of claim 2 , wherein the first set of laterally extending lobes and the second set of laterally extending lobes are joined at a connection plane along an x-axis, the connection plane structured to transition from at least one lobe in the first set of laterally extending lobes to at least one lobe in the second set of laterally extending lobes.

5. The filter element of claim 2 , wherein each lobe in the first set of laterally extending lobes has a first flared portion that extends in a z-axis with respect to a y-axis, such that the first flared portion is angled away from the y-axis, and each lobe in the second set of laterally extending lobes has a second flared portion that extends in the z-axis with respect to the y-axis in a direction that is opposite to the first flared portion.

6. The filter element of claim 1 , wherein at least one of the plurality of axial lobed extensions comprises a first set of laterally extending lobes and a second set of laterally extending lobes, wherein each lobe in the first set of laterally extending lobes has a first flared portion that extends in a z-axis with respect to a y-axis, such that the first flared portion is angled away from the y-axis, and each lobe in the second set of laterally extending lobes has a second flared portion that extends in the z-axis with respect to the y-axis in the same direction in the z-axis with respect to the y-axis as the first flared portion.

7. The filter element of claim 1 , wherein a first axial lobed extension of the plurality of axial lobed extensions is spaced radially away from a second axial lobed extension of the plurality of axial lobed extensions.

8. A filter element comprising:
a first endplate defining a first endplate opening;
a second endplate;
filter media positioned between and extending axially between the first endplate and the second endplate, the filter media defining a central opening extending axially therein;
a support structure disposed within the central opening of the filter media and attached to the first endplate and the second endplate, the support structure comprising an axial lobed extension that-extends from a first end of the support structure to a second end of the support structure, the support structure configured to resist collapse of the filter element, wherein the axial lobed extension is a first axial lobed extension, the support structure further comprising a second axial lobed extension spaced radially away from the first axial lobed extension, the second axial lobed extension extending from the first end of the support structure to the second end of the support structure; and
a first axial support extension and a second axial support extension disposed laterally from the first axial support extension, the first axial support extension extending from an inner diameter of the first end of the support structure to an inner diameter of the second end of the support structure.

9. The filter element of claim 8 , wherein a first section is defined by the first axial support extension and the first axial lobed extension, a second section is defined by the first axial lobed extension and the second axial lobed extension, and a third section is defined by the second axial lobed extension and the second axial support extension, wherein the axial lobed extension and the second axial lobed extension are configured to encourage cross flow between the first section, second section, and third section.

10. The filter element of claim 1 , wherein the support structure further comprises a plurality of cross-ribs attached to the plurality of axial lobed extensions, each cross rib in the plurality of cross-ribs extending radially around a perimeter of the support structure and each cross rib axially displaced from an adjacent cross rib.

11. A filter element comprising:
a first endplate defining a first endplate opening;
a second endplate;
filter media positioned between and extending axially between the first endplate and the second endplate, the filter media defining a central opening extending axially therein; and
a support structure disposed within the central opening of the filter media and attached to the first endplate and the second endplate, the support structure comprising an axial lobed extension that extends from a first end of the support structure to a second end of the support structure, the support structure configured to resist collapse of the filter element, wherein the support structure further comprises a plurality of cross-ribs attached to the axial lobed extension, each cross rib in the plurality of cross-ribs extending radially around a perimeter of the support structure and each cross rib axially displaced from an adjacent cross rib, wherein each cross rib in the plurality of cross-ribs comprises a first rib band and a second rib band axially displaced from the first rib band, the first rib band concentric with the second rib band and a plurality of axial ribs are axially disposed between and connected to the first rib band and the second rib band.

12. The filter element of claim 1 , wherein the first endplate comprises a first end surface and a second end surface spaced axially from the first end surface, the first endplate opening extending from the first end surface to the second end surface, further comprising an elliptical protruding member protruding axially from the first end surface of the first endplate away from the filter media and surrounding the first endplate opening, the elliptical protruding member comprising an outer surface with a seal member.

13. The filter element of claim 12 , wherein the elliptical protruding member is overmolded to the first endplate.

14. A filtration system comprising:
a housing; and
a filter element positioned within the housing, the filter element comprising:
a first endplate defining a first endplate opening;
a second endplate;
filter media positioned between and extending axially between the first end

Assignees

• Cummins Filtration Ip Inc

Inventors

• Knight Jessie A
• Manke Scott Gerald

Classifications

• F01M11/03

  Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means (filters B01D) · CPC title

• F02M35/02416

  Fixing, mounting, supporting or arranging filter elements; Filter element cartridges · CPC title

• B01D2201/0415

  Details of supporting structures · CPC title

• B01D29/21 Primary

  with corrugated, folded or wound sheets · CPC title

• F01M1/10

  Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters · CPC title