Hollow filter element, filter housing and filter

Patent metadata

Field	Value
Publication number	US-2016123282-A1
Application number	US-201514969373-A
Country	US
Kind code	A1
Filing date	Dec 15, 2015
Priority date	Jun 20, 2013
Publication date	May 5, 2016
Grant date	—

Abstract

A hollow filter element, including: a filter medium ( 64 ) for filtering the fluid, the filter medium circumferentially surrounding an element interior space ( 72 ) in relation to an element axis ( 32 ), forming a conical-oval round filter element; wherein the hollow filter element ( 18 ) includes: at least at one outer face facing away from the element interior space ( 72 ) at an end face ( 66 ); at least one support element ( 78 ) configured to support the hollow filter element ( 18 ) at a housing-sided support section ( 42 ) of a filter housing ( 12 ); and at least one fluid passage ( 81 ) arranged at the end face ( 66 ) in the center of the at least one support element ( 78 ), the at least one fluid passage connected to the element interior space ( 72 ) for connecting a secondary fluid line connector ( 45 ) of a housing-sided secondary fluid line ( 47 ) and/or for receiving a housing-sided positioning dome ( 245 ).

First claim

What is claimed is:

1 . A hollow filter element, comprising:
a filter medium for filtering the fluid, the filter medium circumferentially surrounding an element interior space in relation to an element axis, forming a conical-oval round filter element; wherein the hollow filter element includes:
at least at one outer face facing away from the element interior space at an end face;
at least one support element configured to support the hollow filter element at a housing-sided support section of a filter housing; and
at least one fluid passage arranged at the end face in the center of the at least one support element, the at least one fluid passage connected to the element interior space for connecting a secondary fluid line connector of a housing-sided secondary fluid line and/or for receiving a housing-sided positioning dome.

2 . The hollow filter element according to claim 1 , wherein
the at least one support element has at least one cavity which, at least when the hollow filter element is not installed, is connected to the at least one fluid passage and is open on its side facing away from the fluid passage.

3 . The hollow filter element according to claim 1 , wherein
the at least one fluid passage has at least one part of a sealing device for sealing against the secondary fluid line connector of the housing-sided secondary fluid line.

4 . The hollow filter element according to claim 1 , wherein
the at least one fluid passage is connected to a clean fluid side of the filter medium.

5 . The hollow filter element according to claim 1 , wherein
the hollow filter element has, at least on the end face, an end body which includes at least one fluid passage and which is connected to or has the at least one support element.

6 . The hollow filter element according to claim 1 , wherein
the hollow filter element has at least on one circumferential sides, in relation to the element axis, at least one leveling element configured for supporting the filter element against the filter housing.

7 . A filter housing of a filter for fluid, comprising
at least one housing part enclosing an interior for receiving a filter element according to claim 1 , the at least one housing part openable to receive the filter element; at least one inlet for fluid to be cleaned; at least one outlet for cleaned fluid; wherein the filter element can be replaceably installed in the filter housing in such a manner that it separates the at least one inlet from the at least one outlet; at least one housing-sided support section is situated in/at the filter housing, at which the hollow filter element is supported by at least one support element located at one of the end faces of the hollow filter element; and wherein at least one secondary fluid line and/or at least one positioning device is provided on the sides of the filter housing; wherein the at least one secondary fluid line has at least one secondary fluid line connector and/or the at least one positioning device has at least one positioning dome for connecting to at least one of the fluid passages connected to the element interior space, which is located at the center of the at least one support element.

8 . The filter housing according to claim 7 , wherein
the at least one secondary fluid line runs in/at the at least one housing-sided support section and/or is at least concomitantly formed by said support section.

9 . The filter housing according to claim 7 , wherein
the at least one secondary fluid line is a fluid pipe, which can run within the at least one housing-sided support section.

10 . The filter housing according to claim 7 , wherein
the at least one housing part is at least two housing parts, including
a housing pot; and
a housing cover which can at least partially be separated from the housing pot for installing/removing the hollow filter element; and
the at least one housing-sided support section and the at least one housing-sided secondary fluid line are connected to one of the housing parts;

11 . The filter housing according to one of claim 10 , wherein
the housing cover has at least one guide track which extends at least along one imaginary main guide line in a plane with an installation axis of the hollow filter element into the housing cover for guiding and supporting the at least one leveling element which is, in relation to the filter axis, is arranged radial outside at an end face at a first end body of the hollow filter element.

12 . The filter housing according to claim 10 , wherein
the housing pot and/or the housing cover, has at least one connecting lug for connecting to the respectively other housing part of the filter housing.

13 . A filter for fluid, comprising:
a filter housing including:
at least one housing part enclosing an interior for receiving a filter element, the at least one housing part openable to receive the filter element;
at least one inlet for fluid to be cleaned;
at least one outlet for cleaned fluid;
a hollow filter element including:
a filter medium for filtering the fluid, the filter medium circumferentially surrounding an element interior space in relation to an element axis, forming a conical-oval round filter element;
wherein the hollow filter element includes:
at least at one outer face facing away from the element interior space at an end face;
at least one support element configured to support the hollow filter element at a housing-sided support section of a filter housing; and
at least one fluid passage arranged at the end face in the center of the at least one support element, the at least one fluid passage connected to the element interior space for connecting a secondary fluid line connector of a housing-sided secondary fluid line and/or for receiving a housing-sided positioning dome;

wherein the filter element is replaceably installed in the filter housing in such a manner that it separates the at least one inlet from the at least one outlet; at least one housing-sided support section is situated in/at the filter housing, at which the hollow filter element is supported by at least one support element located at one of the end faces of the hollow filter element; and wherein at least one secondary fluid line and/or at least one positioning device is provided on the sides of the filter housing; wherein the at least one secondary fluid line has at least one secondary fluid line connector and/or the at least one positioning device has at least one positioning dome for connecting to at least one of the fluid passages connected to the element interior space, which is located at the center of the at least one support element.

Assignees

• Mann & Hummel Gmbh

Inventors

• Holzwarth Marcel
• Sorger Nadine
• Pereira Madeira Pedro Miguel

Classifications

• B01D46/0005

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

• F02M35/0204

  for connecting or joining to other devices, e.g. pipes · CPC title

• B01D46/0041

  for feeding · CPC title

• F02M35/02483 Primary

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

• B01D46/2411

  Filter cartridges · CPC title