Abstract: A filter element for filtering a fluid is provided with a housing and a filter body arranged in the housing. A cover closes off one end of the housing. An inlet is arranged on the cover at a raw side of the filter element for inflow of a fluid into the filter element. An outlet is arranged on the cover at a clean side of the filter element for discharge of the fluid from the filter element. The cover has a connecting area connecting the filter element with a counter element of a filter system. The cover has a sealing area that seals between the filter element and a receptacle of the filter system. A seal is disposed in the sealing area and has two separate sealing surfaces that effect a sealing action in the connecting area in axial direction and in radial direction of the filter element.

Abstract: A filter device for treating fluids, in particular for filtering fluids such as fuel, oil, or water, has a housing (56) with a housing pot (58), a housing cover (60), at least one inlet (88) for the fluid to be treated, and at least one outlet (82) for the treated fluid. A connecting head (12) has at least one feed (16) for the fluid to be treated and connectable to the at least one inlet (88), and/or at least one discharge (18). The connecting head (12) and the treatment element (14) can be connected to each other by means of a releasable bayonet-type connecting device (34) through the execution of a rotational/plug-in movement about a connecting axis (20) of the treatment device (10).

Abstract: A filter insert for a filter device, having a filter element arranged on a longitudinal axis extending there through and a front-side flow opening arranged on the front side of the filter element with the longitudinal axis extending through the flow opening. The filter element has, with respect to the longitudinal axis, at least one flattened portion with a reduced radial extension or a through hole along the periphery of the flow opening the shortest interior distance in the filter element immediately adjacent to the front-side flow opening is shorter than the inside diameter of the front-side flow opening.

Abstract: A filter element for filtering a fluid, including: a filter bellows made of a filter medium folded into zig-zag-shaped pleats along fold edges, each pleat extending between opposing end edges of the filter bel-lows, and being laterally sealed at the end edges by means of at least one sealant track or a sideband; wherein the filter bellows includes a first element section; and a second element section, which include each on opposing end faces end edge surfaces and that substantially run parallel to one another, wherein, from one element section to another element section, at least one of the end edge surfaces changes direction.

Abstract: A filter cartridge for a filter apparatus, including: a filter element that encloses an clean space within the filter element, at least partially; wherein the filter element has an outflow opening in flow communication with the clean space in the filter element; wherein the filter element has a longitudinal axis extending through the filter element and through the outflow opening; wherein a hollow base for connecting to a housing-side fastening element is arranged on or in the clean space; wherein an interior of the hollow base is sealed off from the clean space in a flow-tight manner.

Abstract: The invention relates to a filter element (10) that includes a filter body (12) that has a longitudinal axis (L) and that is arranged between a clean side (50) and a raw side (52) of the filter element, and at least a first end disk (16) arranged on an end face (15) of the filter body (12). The end disk (16) has a sealing arrangement (22) for sealing between the clean side (50) and the raw side (52). The sealing arrangement (22) furthermore has a radially sealing sealing area (23) and a separate retaining area (20) that acts as a movable bearing. The invention further relates to a filter system (100) for exchangably installing such a filter element (10).

Abstract: A filter device having a filter housing and a filter element having a first and a second filter media body at a common filter element housing. Cooperating positive-locking elements are disposed at the filter housing and a the filter element housing, which engage in a positive-locking manner.

Abstract: A filter element for purifying a fluid at risk of freezing such as a urea-water solution for exhaust gas after treatment has an annular filter body and a support body surrounded by the filter body. The support body is made of an elastomer and is able to yield in a radial inward direction to compensate volume expansion when the fluid freezes.

Abstract: A filter element, including: a first filter medium body having an outflow side and an inflow side; a second filter medium body having an outflow side and an inflow side; wherein the filter element has a longitudinal axis; wherein the first and second filter elements are configured both install into and share in common a filter element housing in which the filter medium bodies delimit a shared common clean space from which the purified fluid is to be discharged via at least one outflow opening; wherein the first filter medium body and the second filter medium body have different sizes and/or different shapes and/or different angular positions of the outflow sides adjoining the clean space.

Abstract: A filter element has a curved filter medium body, which at least partially encloses a flow chamber, and a carrier connector that is guided through the filter medium body. The carrier connector is a carrier of a sealing element for sealing the contact with a flow channel, wherein a section of the sealing element is arranged between the carrier connector and the filter medium body.

Abstract: A filter element has a filter bellows and at least one support element arranged on the filter bellows that supports the filter element relative to a filter housing in which the filter element is to be arranged. The at least one support element is arranged on at least one edge of the filter bellows and projects outwardly past the filter bellows. The at least one support element is detachably or non-detachably attached on the filter bellows directly or indirectly. The at least one support element is preferably arranged on a corner of the filter bellows and projects past all sides of the filter bellows adjoining the corner. An air filter with a filter housing is furnished with the filter element.

Abstract: A flat filter element (34), a filter (10), and a support/positioning body (72, 74, 76) are disclosed. The flat filter element (34) includes a filter medium (64) with an inflow-side raw side (62) and an outflow-side clean side (58). An element sealing section (77) surrounds, circumferentially closed, the filter medium (64) on the raw side (62), the clean side (58), or between the raw side (62) and the clean side (58). The element sealing section (77) serves for supporting a sealing device (78) for sealing the raw side (62) relative to the clean side (58) upon arrangement of the flat filter element (34) in a filter housing (12) of the filter (10). At least one support/positioning body (72, 74, 76) can be supported, for positioning and holding at least the sealing device (76) in the filter housing (12), on the one hand at least on the sealing device (78) and on the other hand on the filter housing (12).

Abstract: The invention relates to a filter element (10), comprising a filter body (12) having a longitudinal axis (L) arranged between a clean side (50) and a crude side (52) of the filter element, as well as comprising at least one first end disk (16) arranged on an end face (15) of the filter body (12). The end disk (16) has a sealing arrangement (22) for forming a seal between the clean side (50) and the crude side (52). In addition, the sealing arrangement (22) has a sealing region (23) that forms a radial seal and a separate holding region (20) arranged concentrically with the sealing region (23) and acts as a radial floating bearing. The invention also relates to a filter system (100) for replaceable installation of such a filter element (10).

Abstract: A filter device has a filter housing and a plate-shaped filter element that is arranged in the filter housing. The filter element has oppositely positioned lateral surfaces that form an inflow side for a fluid to be filtered and an outflow side for the clean fluid. A first clean fluid outflow opening is introduced into the filter housing for discharging the clean fluid. An outflow pipe passes through the filter element for discharging the clean fluid through a second clean fluid outflow opening provided at the outflow pipe. The first clean fluid outflow opening is arranged at a spacing relative to the outflow pipe.

Abstract: A fluid filter system has a filter element disposed in a filter housing with cover. A coupling device is provided with coupling element and corresponding coupling receptacle. The coupling device has a locking position and a release position. The coupling element engages the coupling receptacle in the locking position. The coupling element is released from the coupling receptacle in the release position. In the locking position, filter element and cover are coupled to each other. A locking device is provided with locking element and corresponding locking receptacle. The coupling device is moveable from the release position into the locking position by rotating the coupling element relative to the coupling receptacle about an axial direction and is releasable by rotating the coupling element relative to the coupling receptacle about the axial direction. The locking element locks the coupling device in the locking position by engaging the locking receptacle.

Abstract: A filter element (10) of a filter for fluid, in particular fuel, oil, water, urea solution or air, in particular of an internal combustion engine, in particular of a motor vehicle, and a method for producing the same are described. The filter element (10) comprises a filter medium (14), which is designed as a filter medium hollow body (12) and is circumferentially closed at least with respect to an imaginary axis (16). On at least one end face, the filter medium (14) comprises an end body (20). The end body (20) comprises a closing section (28), which is sealingly connected at least to the filter medium (14). Moreover, the end body (20) has a central fluid opening (24) into which a tube-like connecting element (38) of the filter can be inserted. At least one sealing section (30) is provided on the end body (20) for circumferentially sealing the fluid opening (24) with respect to the tube-like connecting element (38).

Abstract: Being described are a filter (13) for fluid, particularly an air filter, particularly of an internal combustion engine, particularly of a motor vehicle, a filter housing (11) and at least one filter element (10). The filter housing (11) has at least one inlet (15) and at least one outlet (17) for the fluid. The filter element (10), particularly a flat filter element, comprises an open filter bellows (16) made of a filter medium (18), which has an upstream side (28) and a downstream side (30) for the fluid to be filtered. The filter element (10) is arranged in the filter housing (11) in such a manner that it separates the at least one inlet (15) from the at least one outlet (17). An element axis (14) of the filter element (10) and a housing axis (25) of the filter housing (11) can be aligned parallel or axially to an installation direction (12) of the filter element for installing the filter element (10) into the filter housing.

Abstract: A filter element (10) comprises filter bellows (16), in particular open filter bellows made of a filter medium (18), which has an oncoming flow side (28) and an outgoing flow side (30) for the fluid to be filtered. The filter element (10) is disposed in the filter housing (11) in such a way that it separates at least one inlet (15) from at least one outlet (17). An element axis (14) of the filter element (10) and a housing axis (25) of the filter housing (11) may be aligned in parallel with or axially to the installation direction (12) in the filter housing (11) for installing the filter element (10). The filter element (10) has at least one outer support section (38), which protrudes axially beyond the filter bellows (16) on the oncoming flow side (28) or the outgoing flow side (30) with respect to the element axis (14) and protrudes into an axial projection of the oncoming flow side (28) or the outgoing flow side (30) with respect to the element axis (14).

Abstract: A filter element has a filter bellows and at least one support element arranged on the filter bellows that supports the filter element relative to a filter housing in which the filter element is to be arranged. The at least one support element is arranged on at least one edge of the filter bellows and projects outwardly past the filter bellows. The at least one support element is detachably or non-detachably attached on the filter bellows directly or indirectly. The at least one support element is preferably arranged on a corner of the filter bellows and projects past all sides of the filter bellows adjoining the corner. An air filter with a filter housing is furnished with the filter element.

Abstract: A filter device has a cup-shaped filter housing and a filter element disposed in the filter housing. A filter head is connectable to the filter housing and forms a cover for the filter housing. A spring element is provided that is acting on the filter element. The filter head has at least one first form-fit element. The filter housing has at least one second form-fit element for interacting with the at least one first form-fit element. The spring element is arranged such that the filter head and the filter housing for reaching a closed position, in which the at least one first form-fit element and the at least one second form-fit element engage each other, are movable relative to each other axially against the force of the spring element. The spring element clamps the filter element axially between filter head and filter housing in the closed position.