Filter element and filter system

Patent metadata

Field	Value
Publication number	US-9861924-B2
Application number	US-201514840325-A
Country	US
Kind code	B2
Filing date	Aug 31, 2015
Priority date	Aug 29, 2014
Publication date	Jan 9, 2018
Grant date	Jan 9, 2018

Abstract

The invention relates to a filter element ( 10 ) that includes a filter body ( 12 ) that has a longitudinal axis (L) and that is arranged between a clean side ( 50 ) and a raw side ( 52 ) of the filter element, and at least a first end disk ( 16 ) arranged on an end face ( 15 ) of the filter body ( 12 ). The end disk ( 16 ) has a sealing arrangement ( 22 ) for sealing between the clean side ( 50 ) and the raw side ( 52 ). The sealing arrangement ( 22 ) furthermore has a radially sealing sealing area ( 23 ) and a separate retaining area ( 20 ) that acts as a movable bearing. The invention further relates to a filter system ( 100 ) for exchangably installing such a filter element ( 10 ).

First claim

What is claimed is:

1. A filter element, comprising:
a filter body having a longitudinal axis (L), the filter body arranged between a clean side and a raw side of the filter element; and
at least a first end disk arranged on an end face of the filter body;
wherein the end disk has a sealing arrangement for sealing between the clean side and the raw side;
wherein the sealing arrangement has a radially sealing sealing area and a separate retaining area that acts as a moveable bearing;
wherein the retaining area has at least one retaining element with a support element and a buffer element;
wherein the buffer element includes an interior chamber for damping when the buffer element is positioned against a counter-surface provided in the radial direction.

2. The filter element according to claim 1 , wherein
the sealing area has a circumferential seal that includes at least one sealing lip, so that, when being installed in a housing, the clean side of the filter element may be sealed against the raw side.

3. The filter element according to claim 1 , wherein
the buffer element is arranged on a free, radially extending end of the at least one retaining element.

4. The filter element according to claim 1 , wherein
the at least one retaining element includes damping elements in the axial direction.

5. The filter element according to claim 4 , wherein
the at least one end disk and the support element are formed from a hard plastic; and
wherein the buffer element and the damping elements are formed from an elastomer.

6. The filter element according to claim 1 , wherein
the sealing area has a linear increase in force as a pressing force increases.

7. The filter element according to claim 1 , wherein
the retaining area has a progressive increase in its retaining force.

8. The filter element according to claim 1 wherein
the filter element is configured as an air filter for an internal combustion engine.

9. A filter element, comprising:
a filter body having a longitudinal axis (L), the filter body arranged between a clean side and a raw side of the filter element; and
at least a first end disk arranged on an end face of the filter body;
wherein the end disk has a sealing arrangement for sealing between the clean side and the raw side;
wherein the sealing arrangement has a radially sealing sealing area and a separate retaining area that acts as a moveable bearing;
wherein the retaining area has at least one retaining element with a support element and a buffer element;
wherein the retaining area has retaining elements each with different lengths axially and or radially than other retaining elements.

10. The filter element according to claim 9 , wherein
the buffer element includes an interior chamber for damping when the buffer element is positioned against a counter-surface provided in the radial direction.

11. A filter system, comprising:
a housing with housing wall and with a cover;
wherein within an interior of the housing wall in the radial direction has a counter-surface;
an inlet arranged on the housing supplying a fluid to be filtered;
an outlet arranged on the housing for removing filtered fluid;

a filter element arranged in the housing and separating the inlet from the outlet, wherein the filter element further includes
a filter body with a longitudinal axis (L) that is arranged between a clean side and a raw side;
an end disk arranged on an end face of the filter body;
wherein the end disk has a sealing arrangement sealing between the clean side and the raw side;
wherein the sealing arrangement has a radially sealing sealing area and a separate retaining area that acts as a movable bearing;
retaining elements arranged on the retaining area and positioned radially supportable against the counter-surface of the housing wall;
wherein the retaining area has at least one retaining element with a support element and a buffer element;
wherein the buffer element includes an interior chamber for damping when the buffer element is positioned against the counter-surface provided in the radial direction;
wherein the filter element is exchangeably arranged within the interior of the housing of the filter system.

12. The filter system according to claim 11 , further comprising
a secondary element arranged within the housing on the clean side.

13. The filter system according to with claim 12 , wherein
the secondary element is mounted within the housing;
wherein the secondary element remains in the housing when the exchangeable filter element is removed and exchanged.

Assignees

• Mann & Hummel Gmbh

Inventors

• Roesgen André
• Hasenfratz Robert
• Wagner Fabian
• Thalmann Christian
• Pflueger Frank
• Burda Leos
• Tuma Michal
• Wognar Vit

Classifications

• F02M35/0203

  by using clamps, catches, locks or the like, e.g. for disposable plug-in filter cartridges · CPC title

• F02M35/02416

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

• B01D46/0005

  Mounting of filtering elements within casings, housings or frames (B01D46/2422 takes precedence) · CPC title

• F02M35/02483

  Cylindrical, conical, oval, spherical or the like filter elements; wounded filter elements · CPC title

• B01D2265/06

  Details of supporting structures for filtering material, e.g. cores · CPC title