# US 11,896,923 B2 · Air filter housing for an air filter arrangement in a vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,896,923 B2 - Document ID: US11896923B2 - Status: Granted - Kind: B2 - Application number: 17/275,129 - Filed: 2018-09-11 - Published: 2022-02-03 - Granted: 2024-02-13 - Earliest claimed: 2018-09-11 - Assignees: Volvo Truck Corporation - Applicants: Volvo Truck Corporation - Inventors: Fredrik Lindfors; Hans Rönnings; Leo Ekbom - Web page: https://patentgrep.com/patent/US11896923B2 ## CPC - B01D 46/0005: {Mounting of filtering elements within casings, housings or frames (B01D46/2422 takes precedence)} - B01D 46/0004: {Details of removable closures, lids, caps or filter heads} - B01D 46/2411: {Filter cartridges} - B01D 46/88: Replacing filter elements - B01D 2265/06: Details of supporting structures for filtering material, e.g. cores - B01D 2271/02: Gaskets, sealings - B01D 2273/14: Filters which are moved between two or more positions, e.g. by turning, pushing - B01D 2279/60: for the intake of internal combustion engines or turbines - 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) ## Abstract An air filter housing (200) for an air filter arrangement in a vehicle, the air filter housing being configured for receiving unfiltered air and outputting filtered air by passage of the air through an air filter unit (100). The air filter housing (200) forms a filter cavity (201) configured to house said air filter unit (100), and the air filter housing (200) comprises support member (300) being fixedly arranged in the filter cavity (201). The support member (300) comprises a filter holder portion (301) for holding said air filter unit (100) in a use position, in which use position the complete filter holder portion (301) is located inside said filter cavity (201). ## Claims ### Claim 1 An air filter housing for an air filter arrangement in a vehicle, comprising: an air filter housing forming a filter cavity configured to house an air filter unit, the air filter housing configured to receive unfiltered air and output filtered air by passage through the air filter unit, the air filter housing comprising: an outlet for filtered air; a support member fixedly arranged in the filter cavity, the support member comprising a filter holder portion for holding the air filter unit in a retracted position comprising an entirety of the filter holder portion is inside the filter cavity, the support member comprising an outlet sealing member arranged between the filter holder portion and the outlet of the filter housing, the outlet sealing member being an expansible and retractable member; and the filter holder portion movable between the retracted position and an extended position comprising at least a part of the filter holder portion is outside of the filter cavity. ### Claim 2 (depends on 1) The air filter housing of claim 1 wherein in the extended position, an entirety of the filter holder portion is located outside of the cavity. ### Claim 3 (depends on 1) The air filter housing of claim 1, wherein the support member extends along an axial direction and the filter holder portion is movable along the axial direction. ### Claim 4 (depends on 1) The air filter housing of claim 1, wherein the support member comprises a first part fixedly arranged in the filter cavity and a second part movably arranged to the first part, wherein the second part comprises the filter holder portion. ### Claim 5 (depends on 4) The air filter housing of claim 4, wherein the second part is telescopically arranged to the first part. ### Claim 6 (depends on 1) The air filter housing of claim 1, wherein the filter holder portion is configured for holding at least an end of the air filter unit. ### Claim 7 (depends on 1) The air filter housing of claim 1, wherein the support member defines a cage structure allowing air to be filtered to pass through the cage structure when the air filter is in use the retracted position. ### Claim 8 (depends on 1) The air filter housing of claim 1, wherein the support member is arranged to surround the outlet. ### Claim 9 (depends on 1) The air filter housing of claim 1, wherein the outlet sealing member is arranged between a proximal end of the filter holder portion and the outlet of the filter housing. ### Claim 10 (depends on 1) The air filter housing of claim 1, wherein the filter housing forms an open end for introduction and/or removal of an air filter unit relative to the filter cavity. ### Claim 11 (depends on 10) The air filter housing of claim 10, further comprising a lid adapted to close the open end. ### Claim 12 (depends on 1) The air filter housing of claim 1, wherein the support member extends between a proximal end, fixedly arranged in the filter cavity and a distal end. ### Claim 13 (depends on 1) An air filter arrangement comprising an air filter housing according to claim 1, and an air filter unit forming a sleeve about a central axis and extending axially between a first end and a second end, the air filter unit having an outer sleeve surface for receiving unfiltered air, and an inner sleeve surface for output of filtered air, the air filter unit being removably arranged to the filter holder portion. ### Claim 14 A method, comprising: attaching an air filter unit to an filter holder portion of a support member when the air filter unit is in an extended position in which at least a part of the filter holder portion is outside a filter cavity defined by an air filter housing, the air filter housing configured to receive unfiltered air and output filtered air by passage through the air filter unit, the air filter housing comprising an outlet for filtered air; and moving the filter holder portion carrying the air filter unit from the extended position to a retracted position in which an entirety of the filter holder portion is inside the filter cavity, the support member comprising an outlet sealing member arranged between the filter holder portion and the outlet of the filter housing, the outlet sealing member being an expansible and retractable member. ### Claim 15 (depends on 14) The method of claim 14, further comprising: moving the filter holder portion carrying a used air filter unit from the retracted position to the extended position; removing the used air filter unit from the filter holder portion; and providing a new air filter unit, and applying the new air filter unit to the air filter housing.