Filter element comprising hollow cylindrical filter medium body and filter device

Patent metadata

Field	Value
Publication number	US-10413849-B2
Application number	US-201514817798-A
Country	US
Kind code	B2
Filing date	Aug 4, 2015
Priority date	Aug 5, 2014
Publication date	Sep 17, 2019
Grant date	Sep 17, 2019

Abstract

A filter element comprises a hollow cylindrical filter medium body, on the inside of which there is arranged a support frame that is a carrier of at least one installation rib protruding radially inward with respect to the support frame.

First claim

What is claimed is:

1. A filter device comprising:
a filter element comprising:
a hollow, cylindrical, radial flowthrough-permitting filter medium body;
a support frame arranged in on a radially inner side of the radial flowthrough-permitting filter medium body;
at least one end cap arranged on an axial end face of the filter medium body;
wherein the at least one end cap has a central opening extending axially through the at least one end cap;
at least one installation rib secured to a radially inner side of the support frame and protruding radially inwardly from the support frame;
wherein the at least one installation rib extends radially inward further than a radially inner boundary of the central opening in the at least one end cap;
wherein an end face of the at least one installation rib forms a support surface configured to contact and support the filter element on a support dome projecting through the central opening into an interior of the hollow, cylindrical, radial flowthrough-permitting filter medium body;
wherein the at least one end cap comprises an annular sealing ring projecting axially outwardly from the at least one end cap in a direction away from the filter medium body, the annular sealing ring circumferentially closing about the central opening of the at least one end cap;
wherein the annular sealing ring has a radially inner sealing surface and a radially outer sealing surface, such that the seal ring can seal both radially inwardly and outwardly from the annular sealing ring; and

a support dome comprising:
a cylindrical base section formed as a circumferential wall having a lattice structure;
wherein a first axial end of the cylindrical base section has a plurality of spaced apart teeth projecting axially outwardly beyond the first axial end of the cylindrical base section, the plurality of spaced apart teeth uniformly distributed over a circumference of the first axial end face;
wherein support incisions are formed as axial recesses between adjacent teeth of the plurality of spaced apart teeth;
wherein the end face of the at least one installation rib is received into the support incisions of cylindrical base section, such that the end face of the at least one installation rib projects into and is received into the support incisions of the cylindrical base section and between the adjacent teeth; and
a plurality of latching elements formed with and projecting axially outwardly from a second axial end face of the cylindrical base section, the latching elements adapted to latch the support dome into a filter housing; an axially elongated guide section formed as a circumferential wall having a lattice structure;

a filter housing having interior into which the filter element and support dome are received;
wherein an axial end face of the guide section contacts the support surface of the at least one installation rib;
a pot shaped filter housing cover.

2. The filter device according to claim 1 , wherein
the at least one installation rib is a plurality of installation ribs are arranged on the support frame of the filter element and a plurality of counter-support elements are arranged on an end face of the support dome.

3. The filter element according to one of claim 1 , wherein
the end face of the at least one installation rib that forms the support surface is arranged axially spaced apart from an adjacent axial end face of the filter medium body.

4. The filter element according to one of claim 1 , wherein
the at least one installation rib runs along a longitudinal brace of the support frame that extends in the axial direction.

5. A support dome for a filter element, comprising:
a cylindrical base section formed as a circumferential wall having a lattice structure;
wherein a first axial end of the cylindrical base section has a plurality of spaced apart teeth projecting axially outwardly beyond the first axial end of the cylindrical base section, the plurality of spaced apart teeth uniformly distributed over a circumference of the first axial end face;
wherein support incisions are formed as axial recesses arranged between adjacent teeth of the plurality of spaced apart teeth;
wherein the cylindrical base section further includes an axially elongated guide section which is cylindrical or conical, the axially elongated guide section arranged concentrically at a radial interior of the cylindrical base section, the cylindrical base section having a larger outside diameter than the axially elongated guide section, the axially elongated guide section having an axial free end projecting axially outwardly beyond the first axial end face of the cylindrical base section and beyond the plurality of spaced apart teeth;
a plurality of latching elements formed with and projecting axially outwardly from a second axial end face of the cylindrical base section, the latching elements adapted to latch the support dome into a filter housing.

Assignees

• Mann & Hummel Gmbh

Inventors

• Wildermuth Andreas
• Jokschas Guenter
• Glueck Oliver
• Faisst Marco

Classifications

• B01D2201/4084

  Snap or Seeger ring connecting means · CPC title

• B01D2201/4046

  Means for avoiding false mounting of different parts · CPC title

• B01D2201/4015

  Bayonet connecting means · CPC title

• B01D2201/305

  Snap, latch or clip connecting means · CPC title

• B01D2201/291

  End caps · CPC title