Cover for a filter system, seal for a cover, and filter system comprising a cover

Patent metadata

Field	Value
Publication number	US-11857903-B2
Application number	US-202016950710-A
Country	US
Kind code	B2
Filing date	Nov 17, 2020
Priority date	May 18, 2018
Publication date	Jan 2, 2024
Grant date	Jan 2, 2024

Abstract

A cover for a filter system for filtering a fluid has a fluid channel arranged at an inner side of the cover. The cover has a rim and at least one opening arranged in the rim to allow the fluid to pass through, wherein the opening is connected in fluid communication with the fluid channel. The fluid channel is connected in fluid communication with the interior of a filter element of the filter system. A seal for the cover has a first sealing ring and a second sealing connected to each other by flanks. The filter system has a housing with a housing part that is closable by the cover. A filter element is exchangeably arranged in the housing, and the fluid channel of the cover is connected in fluid communication to the interior of the filter element.

First claim

What is claimed is:

1. A cover for a filter system for filtering a fluid,
wherein a filter element is arrangeable in a housing of the filter system, comprises a filter bellows arranged about a longitudinal axis of the filter element and enclosing an interior of the filter element, and further comprises an open-end disk;
wherein the cover comprises a fluid channel arranged at an inner side of the cover;
wherein the cover comprises a rim and at least one opening arranged in the rim and configured to allow the fluid to pass through, wherein the at least one opening is connected in fluid communication with the fluid channel;
wherein the inner side of the cover comprises a rim region, wherein a first circumferentially extending sealing groove is arranged at the rim region, wherein the first circumferentially extending sealing groove is configured to receive a first seal; and
wherein the cover comprises a second circumferentially extending sealing groove, wherein the first circumferentially extending sealing groove surrounds the second circumferentially extending sealing groove, wherein the first seal received in the first circumferentially extending sealing groove is configured to seal between the cover and a housing part of the housing between a clean side of the filter system and an exterior, and wherein the second circumferentially extending sealing groove is configured to receive a second seal configured to seal between the cover and the housing part between the clean side and a raw side of the filter system, wherein the at least one opening arranged in the rim is arranged between the first and the second circumferentially extending sealing grooves.

2. The cover according to claim 1 , wherein the fluid channel is connected in fluid communication with the interior of the filter element.

3. The cover according to claim 1 , further comprising at least one circumferentially extending sealing surface configured to receive at least one seal.

4. The cover according to claim 3 , wherein the at least one circumferentially extending sealing surface is arranged at a rim region of the inner side of the cover, wherein the at least one seal is arranged, in a mounted state of the cover on the housing, between the cover and a housing part of the housing and between the at least one opening arranged in the rim and the housing part.

5. The cover according to claim 1 , wherein the inner side of the cover comprises a receptacle, wherein the receptacle surrounds the fluid channel at least partially, wherein the receptacle is configured to support a complementary bead of the filter element.

6. The cover according to claim 5 , wherein a rib is arranged at an inner rim of the receptacle and the rib is configured to project into the interior of the filter element in a mounted state of the cover on the housing.

7. The cover according to claim 1 , wherein the inner side of the cover comprises a circumferentially extending collar comprising a circumferentially extending sealing surface configured to interact with a radial seal of the filter element to seal a clean side of the filter system relative to a raw side of the filter system.

8. A seal for a cover according to claim 1 , wherein the seal comprises a first sealing ring and a second sealing ring, wherein the first sealing ring and the second sealing ring are connected by flanks to each other.

9. The seal according to claim 8 , wherein the first sealing ring is angled relative to the second sealing ring.

10. A filter system for filtering a fluid, the filter system comprising:
a housing comprising a cover and a housing part closable by the cover, wherein the cover comprises a fluid channel arranged at an inner side of the cover;
a filter element exchangeably arranged in the housing;
wherein the fluid channel of the cover is connected in fluid communication to an interior of the filter element;
wherein the cover comprises a rim and at least one opening arranged in the rim and configured to allow the fluid to pass through, wherein the at least one opening is connected in fluid communication with the fluid channel;
wherein the inner side of the cover comprises a rim region, wherein a first circumferentially extending sealing groove is arranged at the rim region, wherein the first circumferentially extending sealing groove is configured to receive a first seal; and
wherein the cover comprises a second circumferentially extending sealing groove, wherein the first circumferentially extending sealing groove surrounds the second circumferentially extending sealing groove, wherein the first seal received in the first circumferentially extending sealing groove is configured to seal between the cover and a housing part of the housing between a clean side of the filter system and an exterior, and wherein the second circumferentially extending sealing groove is configured to receive a second seal configured to seal between the cover and the housing part between the clean side and a raw side of the filter system, wherein the at least one opening arranged in the rim is arranged between the first and the second circumferentially extending sealing grooves.

11. The filter system according to claim 10 , wherein the housing part comprises a socket with an opening, wherein the housing part further comprises a circumferential collar with a first sealing surface for a first sealing ring of a seal and further comprises a second sealing surface at the opening of the socket for a second sealing ring of the seal.

Assignees

• Mann & Hummel Gmbh

Inventors

• Neef Pascal
• Fritzsching Torsten
• Hettkamp Philipp
• Rieger Mario

Classifications

• B01D46/0004 Primary

  Details of removable closures, lids, caps or filter heads · CPC title

• B01D46/0005

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

• F02M35/0201

  Housings; Casings; Frame constructions; Lids; Manufacturing or assembling thereof · CPC title

• F02M35/02416

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

• B01D2265/06

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