Sealing Element, Annular Filter Element, Oil Separator, and Method for Opening Filter Housing of Oil Separator

Patent metadata

Field	Value
Publication number	US-2016348790-A1
Application number	US-201615169932-A
Country	US
Kind code	A1
Filing date	Jun 1, 2016
Priority date	Jun 1, 2015
Publication date	Dec 1, 2016
Grant date	—

Abstract

A sealing element ( 60 ) for an annular filter element ( 100 ) of an oil separator ( 200 ) of a crankcase ventilation system, wherein the annular filter element ( 100 ) is configured to separate oil from fluid. The sealing element ( 60 ) fulfills more than one sealing function and yet is easy to use and replace. The sealing element ( 60 ) having at least one radially sealing region ( 64 ) that is configured to act in the direction of the radius ( 120 ) of the annular filter element ( 100 ), and at least one axially sealing region ( 66 ) that is configured to act in the direction of the longitudinal axis ( 110 ) of the annular filter element ( 100 ).

First claim

What is claimed is:

1 . A sealing element ( 60 ) for an annular filter element ( 100 ) of an oil separation element ( 200 ) of a crankcase ventilation system, wherein
the annular filter element ( 100 ) is configured to separate oil from a fluid entering the filter element; wherein the sealing element ( 60 ) is an annular closed ring monolythically formed as a single unitary part of elastic sealing material, the sealing element spaced radially away from and closed circumferentially about a longitudinal axis of the annular filter element; wherein axially, as used herein, is a direction of the longitudinal axis; wherein radially, as used herein, is a direction traverse to the longitudinal axis; wherein the sealing element has at least one radially sealing region ( 64 ) that is configured to act in the direction of the radius ( 120 ) of the annular filter element ( 100 ), and wherein the sealing element has at least one axially sealing region ( 66 ) that is configured to act in the direction of the longitudinal axis ( 110 ) of the annular filter element ( 100 ).

2 . The sealing element according to claim 1 , wherein
the radially sealing region ( 64 ) is spaced axially upward away from the axially sealing region ( 66 ).

3 . The sealing element according to claim 2 , wherein
the radially sealing region ( 64 ) and the axially sealing region ( 66 ) are spaced apart from each other axially at an offset to one another in the direction of the longitudinal axis ( 110 ) of the annular filter element ( 100 ); wherein the radially sealing region ( 64 ) is arranged axially outwardly axially sealing region ( 66 ) so as to follow a direction of flow of the fluid to be filtered in the annular filter element.

4 . An oil separation element of a crankcase ventilation system, comprising:
a filter housing having an upper housing part and a lower housing part and enclosing an interior chamber arranged within in the lower housing part; an annular filter element ( 100 ) replaceably received within the interior chamber and configured to separate oil from a fluid entering the filter element and having a longitudinal axis, the filter element including
a sealing element ( 60 ) arranged on the filter element, the sealing element is an annular closed ring monolithically formed as a single unitary part of elastic sealing material;
wherein the sealing element spaced radially away from and closed circumferentially about a longitudinal axis of the annular filter element;
wherein axially, as used herein, is a direction of the longitudinal axis;
wherein radially, as used herein, is a direction traverse to the longitudinal axis;
wherein the sealing element has at least one radially sealing region ( 64 ) that is configured to act in the direction of the radius ( 120 ) of the annular filter element ( 100 ), and
wherein the sealing element has at least one axially sealing region ( 66 ) that is configured to act in the direction of the longitudinal axis ( 110 ) of the annular filter element ( 100 );
wherein the interior chamber of the filter housing ( 210 , 220 ) is divided by the annular filter element ( 100 ) into a pre-filtration space or a pre-filtration side ( 250 ) and a post-filtration space or a post-filtration side ( 240 ); wherein the radially sealing region contacts against and seals to the filter housing, sealing the pre-filtration side ( 250 ) from the post-filtration side ( 240 ); and wherein the axially sealing region ( 66 ) is configured so as to seal axially against and axial upper edge of the lower housing part, sealing the interior charger of the filter housing ( 210 , 220 ) off from an external environment.

5 . The oil separation element according to claim 4 , wherein
the upper housing part includes a clean fluid outlet ( 212 ) configured to remove the filtered clean fluid, and wherein the radially sealing region ( 64 ) of the sealing element ( 60 ) is arranged at a same axial height as the clean fluid outlet ( 212 ).

6 . The oil separation element according to claim 4 , wherein
the radially sealing region ( 64 ) is arranged radially between the filter housing ( 210 , 220 ) and the annular filter element ( 100 ) in such a manner that the radially sealing region ( 64 ) is elastically compressed radially between the upper housing part ( 210 ) and the annular filter element ( 100 ); wherein the axially sealing region ( 66 ) is arranged between the upper housing part ( 210 ) and the axial upper edge of the lower housing part such that the axially sealing region ( 66 ) is elastically compressed axially between the upper housing part ( 210 ) and the lower housing part.

7 . The oil separation element according to claim 6 , wherein
the radially sealing region ( 64 ) is arranged between the upper housing part ( 210 ) of the filter housing ( 210 , 220 ) and an end plate ( 40 ) of the annular filter element; wherein the radially sealing region is arranged on and covers at least one region of a covering surface ( 30 ) of the annular filter element ( 100 ) in such a manner that the radially sealing region ( 64 ) of the sealing element ( 60 ) is elastically compressed radially between the upper housing part ( 210 ) and the end plate ( 40 ) of the annular filter element ( 100 ).

8 . An annular filter element ( 100 ) for an oil separation element ( 200 ) of a crankcase ventilation system, wherein
the annular filter element ( 100 ) configured to separate oil from a fluid entering the filter element and having a longitudinal axis aligned with and extending through an open interior of the annular filter element, the filter element including
a sealing element ( 60 ) arranged on the filter element, the sealing element is an annular closed ring monolithically formed as a single unitary part of elastic sealing material;
wherein the sealing element spaced radially away from and closed circumferentially about the longitudinal axis of the annular filter element;
wherein axially, as used herein, is a direction of the longitudinal axis;
wherein radially, as used herein, is a direction traverse to the longitudinal axis;
wherein the sealing element has at least one radially sealing region ( 64 ) that is configured to act in the direction of the radius ( 120 ) of the annular filter element ( 100 ), and
wherein the sealing element has at least one axially sealing region ( 66 ) that is configured to act in the direction of the longitudinal axis ( 110 ) of the annular filter element ( 100 );
wherein the sealing element is releasably or non-releasably fastened onto the annular filter element ( 100 ).

9 . The annular filter element according to claim 8 , comprising:
at least one filter medium ( 10 ) that is configured to separate oil from fluid from an aerosol; wherein the at least one filter medium is configured in a closed ring shape about the longitudinal axis; wherein the at least one filter medium is wrapped about the longitudinal axis; wherein the annular filter element has at least one covering surface ( 30 ) extending radially, parallel to a direction of flow ( 20 ) of the fluid flowing through the filter medium ( 10 ); wherein the annular filter element includes an end plate ( 40 ) arranged on the covering surface; wherein the sealing element ( 60 ) is fastened releasably or non-releasably onto the end plate ( 40 ).

10 . The annular filter element according to claim 9 , wherein
the end plate ( 40 ) has a an annular groove forming a fastening contour ( 44 ) to fasten the sealing element ( 60 ) to the annular filter element ( 100 ); wherein in the fastening contour, the radially sealing region ( 64 ) of the sealing element ( 60 ) is clamped.

11 . The annular filte

Assignees

• Mann & Hummel Gmbh

Inventors

• Zuerker Markus
• Melde Markus
• Ehrhardt Philipp

Classifications

• B01D2271/022

  Axial sealings · CPC title

• F16J15/06 Primary

  with solid packing compressed between sealing surfaces · CPC title

• B01D46/4227

  Manipulating filters or filter elements, e.g. handles or extracting tools · CPC title

• F01M13/04 Primary

  having means for purifying air before leaving crankcase, e.g. removing oil · CPC title

• B01D46/0004

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