# US 2026/0192227 A1 · Filter element for arrangement in a filter housing of a filter device, filter housing and filter device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2026/0192227 A1 - Document ID: US20260192227A1 - Status: Published application - Kind: A1 - Application number: 19/559,379 - Filed: 2026-03-06 - Published: 2026-07-09 - Earliest claimed: 2023-09-13 - Assignees: Mann+Hummel GmbH - Applicants: MANN+HUMMEL GmbH - Inventors: Klaus-Dieter RUHLAND; Michael KAUFMANN - Web page: https://patentgrep.com/patent/US20260192227A1 ## CPC - B01D 46/00: Filters or filtering processes specially modified for separating dispersed particles from gases or vapours (filtering elements B01D24/00-B01D35/00; filtering material B01D39/00; their regeneration outside the filters B01D41/00) - B01D 46/0005: {Mounting of filtering elements within casings, housings or frames (B01D46/2422 takes precedence)} - B01D 46/2403: {characterised by the physical shape or structure of the filtering element} - B01D 46/2414: {End caps including additional functions or special forms} - F02M 35/02416: {Fixing, mounting, supporting or arranging filter elements; Filter element cartridges} - F02M 35/02425: {Support structures increasing the stability or stiffness of the filter element} - F02M 35/02483: {Cylindrical, conical, oval, spherical or the like filter elements; wounded filter elements} - B01D 2201/301: Details of removable closures, lids, caps, filter heads - B01D 2201/304: Seals or gaskets - B01D 2265/06: Details of supporting structures for filtering material, e.g. cores - B01D 2271/02: Gaskets, sealings - B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28) - F02M: SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF ## Abstract A filter element has a filter medium body with inflow side and outflow side at opposite sides relative to a longitudinal center axis of the filter element. A circumferential seal at the filter medium body extends around the longitudinal center axis. At least two projection regions being part of one or more projection elements are arranged at a radially outer side of the filter element axially between the circumferential seal and the outflow side. At least one projection region is closer to the circumferential seal than at least one other projection region and arranged at a larger radial distance to the longitudinal center axis than the other projection region. When connected in a filter housing, the projection regions are placed against a mating structure of the filter housing to form an axial stop of the filter element in the filter housing relative to the longitudinal center axis. ## Claims ### Claim 1 A filter element comprising: at least one filter medium body comprising an inflow side and an outflow side at oppositely positioned axial sides in relation to a longitudinal center axis of the filter element; a circumferential seal arranged on the at least one filter medium body and extending circumferentially in relation to the longitudinal center axis; one or more projection elements each comprising at least two projection regions, wherein the at least two projection regions are arranged at a radially outer side of the filter element axially between the circumferential seal and the outflow side, and wherein the at least two projection regions are axially spaced apart from each other; wherein a first one of the at least two projection regions is positioned closer to the circumferential seal than a second one of the at least two projection regions and is arranged at a larger radial distance to the longitudinal center axis than the second one of the at least two projection regions; wherein, in an intended connection state of the filter element in a filter housing, the at least two projection regions are placed against a mating structure of the filter housing to form an axial stop of the filter element in the filter housing in relation to the longitudinal center axis. ### Claim 2 (depends on 1) The filter element according to claim 1, wherein the at least two projection regions are arranged at the same projection element of the one or more projection elements. ### Claim 3 (depends on 2) The filter element according to claim 2, wherein the at least two projection regions pass without a gap into each other. ### Claim 4 (depends on 1) The filter element according to claim 1, wherein the at least two projection regions are spaced apart from each other along a circumference of the filter element. ### Claim 5 (depends on 1) The filter element according to claim 1, wherein the filter element comprises at least two of the one or more projection elements, wherein the at least two of the one or more projection elements each comprise the at least two projection regions. ### Claim 6 (depends on 1) The filter element according to claim 1, wherein the at least two projection regions define at least one support surface inclined relative to the longitudinal center axis. ### Claim 7 (depends on 6) The filter element according to claim 6, wherein the at least one support surface is a planar support surface. ### Claim 8 (depends on 6) The filter element according to claim 6, wherein the at least one support surface is inclined at an acute angle relative to an axial direction of the longitudinal center axis. ### Claim 9 (depends on 1) The filter element according to claim 1, wherein at least one of the at least two projection regions, viewed in an axial projection along the longitudinal center axis, is arranged between the longitudinal center axis and a radially outer side of the circumferential seal. ### Claim 10 (depends on 9) The filter element according to claim 9, wherein the circumferential seal extends in the axial projection radially outside of the at least one of the at least two projection regions. ### Claim 11 (depends on 1) The filter element according to claim 1, wherein all of the at least two projection regions, viewed in an axial projection along the longitudinal center axis, are arranged between the longitudinal center axis and a radially outer side of the circumferential seal. ### Claim 12 (depends on 1) The filter element according to claim 1, further comprising three or more circumferentially interrupted support surfaces distributed about an outer circumference of the filter element and facing the outflow side, wherein each one of the support surfaces is defined by at least two of the at least two projection regions. ### Claim 13 (depends on 1) The filter element according to claim 1, further comprising a frame element, wherein the one or more projection elements are arranged at the frame element of the filter element. ### Claim 14 (depends on 13) The filter element according to claim 13, wherein the circumferential seal is configured to seal at least partially radially when the filter element is arranged in a filter housing. ### Claim 15 (depends on 1) The filter element according to claim 1, wherein the circumferential seal comprises at least one seal lip. ### Claim 16 (depends on 15) The filter element according to claim 15, wherein the circumferential seal is a lamellar seal. ### Claim 17 (depends on 1) The filter element according to claim 1, wherein the circumferential seal protrudes past the inflow side in an axial direction of the longitudinal center axis. ### Claim 18 (depends on 1) The filter element according to claim 1, further comprising a seal holding wall, wherein the circumferential seal comprises a radially inner circumferential side supported at the seal holding wall of the filter element. ### Claim 19 (depends on 1) A filter housing configured to accommodate at least one filter element according to claim 1. ### Claim 20 (depends on 1) A filter device comprising at least one filter housing and at least one filter element arranged in the at least one filter housing, wherein the at least one filter element is a filter element according to claim 1.