Abstract: A filter system (100) for filtering a fluid, with a front-end inlet (102) and outlet (104), and comprising: at least one filter element (10); a filter housing (108); a coupling device (30) for coupling the filter system (100) to a receiving means (32) external to the filter system; and a seal holder (16) having a seal (18) for sealing the filter system at the receiving means (32). In addition, the coupling device (30) has one or more coupling elements (36) that can be at least partially introduced in an axial direction (L) into a coupling contour (34) arranged in the receiving means (32), by means of a sliding-rotating movement, such that the 20 filter system (100) is held and locked in the receiving means (32) in an end position (38). Also disclosed is a combination of a filter system (100) together with a receiving means (32).

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: Disclosed are an air filter element, a filter housing, and an air filter in which the air filter elements have a high filtering capacity and a long service life by increasing the filter surface of an air filter element taking into account structural requirements for the air filter housing.

Abstract: A replaceable filter of a filter device (10 has a housing bowl (64) in which at least one filter element (70) is arranged, at least one filter-side coupling part (74) arranged on the end face of the housing bowl (64) of a coupling device (22) for the detachable coupling of the replaceable filter (14) to a filter head (12 of the filter device (10) via a push and/or turn movement with respect to a coupling axis (24) of the replaceable filter (14), at least one opening arranged on the end face of the housing bowl (64), a shaped sheet-metal part (86) connected to the end-face rim of the housing bowl (64) via a shaped flange (88) having at least one molded seal seating groove (92) that is open in the radial direction and peripheral with respect to the coupling axis (24) for the seating of at least one seal (90). At least one seal seating groove (92) runs radially around the outside of at least one opening.

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 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: Disclosed are an air filter element, a filter housing, and an air filter in which the air filter elements have a high filtering capacity and a long service life by increasing the filter surface of an air filter element taking into account structural requirements for the air filter housing.

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: 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 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: The invention relates to a filter (10) having at least a first bayonet joint (22). The first bayonet joint (22) has a first bayonet slotted guide (26) with two locking positions that are axially spaced apart from one another for a first bayonet projection (24) of the first bayonet joint (22). By rotating a filter part for releasing the first bayonet joint (22), the first bayonet projection (24) may be moved from the second locking position into the first locking position. The filter (10) preferably has a second bayonet joint (28). The second bayonet joint (28) is preferably embodied such that, by further rotation in the same direction of rotation, it is released in that a second bayonet projection (30) is moved out of a third locking position of a second bayonet slotted guide (32) of the second bayonet joint (28) after the first bayonet projection (24) has been stopped in the first locking position.

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: A filter device comprises a hollow cylindrical filter element in a filter housing. The fluid that is to be purified is to radially flow through the filter element. The interior of the filter element forms an axial flow chamber for the fluid. An end plate is arranged on the front side of the filter element. An annular neck, onto which a sealing element is injection-molded, is connected to the end plate.