Abstract: The invention relates to an assembly for forming a seal between components (11, 33), which have sealing zones (37,51), said sealing zones facing each other in a functional position of the components. A sealing element (43, 57) is provided on the sealing zone (37, 51) of one component (11, 33) and a sealing surface (51) is provided on the sealing zone (37, 51) of the other component (11, 33) in order to form a radial seal, and the components (11, 33) can be brought into the functional position by a relative movement which is carried out in the axial direction, said sealing element (43, 57) sealingly interacting with the sealing surface (51) in said functional position. The invention is characterized in that the assembly has a third component (61) which is associated with an actuating part (62) that acts on the sealing element (43;57) in the functional position of the components (11, 33) so as to deform said element in order increase the sealing force.

Abstract: The invention relates to a filter device having at least one filter element (11) comprising a filter medium (27) disposed between two receiving parts (31, 35) and a connecting device located at the lower receiving part (35) for a fluid connection to a fluid device, in particular to a fluid tank (1), having a connecting part (45) disposed on the connecting device, said connecting part being pretensioned by the action of a first energy store (43) for a motion away from the upper receiving part (31) into a closed position blocking the connecting device, having a further, second energy store (49) for generating a relative motion between the lower receiving part (35) and a closing-off part (17) of the device, and having a sealing device (55) sealing between the lower receiving part (35) and the closing-off part (17) as soon as said part and the lower receiving part (35) make contact with each other under the influence of the second energy store (49).

Abstract: The invention relates to a filtering device comprising multiple filtering embodiments (3), the bodies of which define a longitudinal axis, said filtering elements (3) being arranged adjacently to one another in a housing such that the longitudinal axes of the filtering elements run parallel to one another. The bodies of at least some of the filtering elements (3) have a shape that deviates from a circular cylinder at least one part of the body length. The filtering device is characterized in that the filtering elements (3) with bodies that have a shape which deviates from a circular cylinder that have a cross-section the size of which at least partially changes from one end to the other end, and said filtering elements are oriented in the housing such that the regions of a larger cross-section are associated with the regions of a smaller cross-section in adjacent filtering elements.

Abstract: A system for ventilating and venting containers containing a fluid volume, such as gearboxes containing an oil filling, with a line system which connects the container concerned to the atmosphere and, upon changes in the volumes located in the container due to temperature changes, permits pressure equalization, is characterized in that the line system contains a separating housing (12) in which a separating medium (46) having oleophobic and hydrophobic properties separates a first space (42), which is connected to the container, from a second space (44), which is connected to the atmosphere, and in that line connections (10, 14) to the separating housing (12) are laid in such a manner that liquid-phase substances deposited on the separating medium (46) can flow out of the first space (42) to the container and out of the second space (44) to the atmosphere.

Abstract: A filter device having a filter element (9) forming a body extending along a longitudinal axis received in a housing (1) closed by a cover part (3). A sealing arrangement (49) is provided to form a fluid-tight seal between the housing (1) and the cover part (3). The sealing arrangement (49) is a component of a filter element (9) and is fixed to a sealing carrier (48) rigidly connected to the filter element.

Abstract: The invention relates to a component (30) for a filter unit for filtering fluids, in particular hydraulic fluids, comprising at least in areas an insertion or application of magnetisable and/or magnetised particles, whereby, using a simplified design, a magnetic separation of contaminants in a fluid flowing through a filter unit is achieved. The component can be in the form of a film (30) and can be an externally or circumferentially arranged support means for a filter element (10). In the manufacture of the component (30), said component is provided at least in areas with an insertion and/or application of magnetisable and/or magnetised particles.

Abstract: A filter device has a filter housing (1), at least one filter element (13) received in the filter housing (1) and an inner fluid space (71) limited by a filter medium (17) through which the fluid to be cleaned can flow. The filter medium separates the inner fluid space (71) from an exterior fluid space (11) located in the filter housing (1). The filter housing (1) has a fluid inlet (7) and a fluid outlet for cleaned fluid. A fluid guide device (9) is connected downstream to the fluid inlet (7) and can be optionally retrofitted to form a flow path between the fluid inlet (7) and the exterior fluid space (11) or between the fluid inlet (7) and the inner fluid space (71) disposed in the filter element (13).

Abstract: A filter apparatus, provided for installation in a fluid storage tank, having at least one preferably replaceable filter element (11), through which a fluid can flow from the outside to an inner hollow filter chamber (19), forming the clean side, and which is surrounded by a housing wall (1) which forms a fluid chamber (15), into which the cleaned fluid from the inner hollow filter chamber (19) can flow, the housing wall having at least one wall opening (31) which forms a fluid passage located within the region of the variable fluid level in the storage tank. Said filter apparatus is characterized in that a control device (39, 41, 43) is provided which can be actuated as a function of the fluid level the storage tank and brings the fluid passage of the at least one wall opening (31) close to the position of the surface of the fluid in the storage tank.

Abstract: The invention relates to a filter device having at least one filter element (11) comprising a filter medium (27) disposed between two receiving parts (31, 35) and a connecting device located at the lower receiving part (35) for a fluid connection to a fluid device, in particular to a fluid tank (1), having a connecting part (45) disposed on the connecting device, said connecting part being pretensioned by the action of a first energy store (43) for a motion away from the upper receiving part (31) into a closed position blocking the connecting device, having a further, second energy store (49) for generating a relative motion between the lower receiving part (35) and a closing-off part (17) of the device, and having a sealing device (55) sealing between the lower receiving part (35) and the closing-off part (17) as soon as said part and the lower receiving part (35) make contact with each other under the influence of the second energy store (49).

Abstract: A filter element (1) has a filter pot (3) delimiting a cylindrical interior (5) and has a bottom part (7) with a fluid connection (11). A lid part (37) is opposite the bottom part. A filter medium (29) is adjacent to the inner wall of the filter pot (3) in the form of a hollow cylindrical body leaving the central region of the interior (5) free. Fluid passages (31) in the wall of the filter pot (3) surround the filter medium (29). A ring body (53) as a connecting part 10 between filter pot (3) and lid part (37) and has a jacket part (55) extending axially along the end section (57) of the filter pot (3). An end part (51) extends radially inward and spans the edge of the filter pot (3) and the edge of the lid part (37). On the end part (51) of the ring body (53) and on the lid part (37), interacting snap connectors (59, 61) are provided to form a snap connection between end part (51) and lid part (37).

Abstract: The invention relates to a filter device. The invention further relates to a filter device comprising a filter element (1), which can be removably accommodated in a sheathing (13) and the filter material (9) of which, through which the fluid to be cleaned can flow, separates a space (3) forming the dirty side during the filtration process from a space forming the clean side, and comprising a bypass valve, the closing body (41) of which, when the pressure difference in the spaces exceeds a limit value range, can be moved counter to the action of a closing spring (21) into an open position that allows the pressure difference to be reduced, is characterized in that the closing body (41) as part of the filter element (1) can be removed from the sheathing (13) while attached to the filter element and can be spatially separated from the closing spring (21) in doing so.

Abstract: A filter device comprising a filter element (9), which forms a body extending along a longitudinal axis and can be received in a housing (1) that can be closed by means of a cover part (3), a sealing arrangement (49) being provided in order to form a fluid-tight seal between the housing (1) and the cover part (3), is characterized in that the sealing arrangement (49) as a component of the filter element (9) is fixed to a sealing carrier (48) rigidly connected to said element.

Abstract: A filter device comprising a filter element (9), which can be received in a housing (1) that can be closed by means of a cover part (3) having fluid ducts (35, 41), a connecting unit being provided in order to create a fluid-conducting connection between the filter element (9) and an associated fluid duct (35) of the cover part (3), is characterized in that the connecting unit is configured in the form of a coupling having a movable coupling part (33), which in the functional state creates the fluid-conducting connection.

Abstract: The invention relates to a method for producing a support part, in particular, for use with a filter element. Said support part is shaped in the form of a support tube (10) provided with through holes for fluid (12), the periphery thereof forming a bearing surface (14) for the filter material, wherein at least one annular shaped head (16) is applied, separating the bearing surface (14) into partial bearing surfaces (18). By reducing the free bead cross-section and by forming a support ring (24), the adjacent opposite bead edges (22) of the respective associated bead (16) are arranged on top of each other in order to achieve high stability and functional reliability. The invention also relates to a filter element which is produced according to said method. method.

Abstract: A filter device having a filter housing (1) and at least one filter element (13) that can be received in the filter housing (1) and that has an inner fluid space (71), which is limited by a filter medium (17), through which the fluid to be cleaned can flow, and which separates the inner fluid space (71) from an exterior fluid space (11) located in the filter housing (1), wherein the filter housing (1) has a fluid inlet (7) and a fluid outlet for cleaned fluid, characterized in that a fluid guide device (9) is connected downstream to the fluid inlet (7), which can be retrofitted such that it optionally forms a flow path between the fluid inlet (7) and the exterior fluid space (11), or between the fluid inlet (7) and the inner fluid space (71) disposed in the filter element (13).

Abstract: A filter element (1) having a filter pot (3) which delimits a cylindrical interior (5) and has a bottom part (7) having a fluid connection (11), a lid part (37) opposite the bottom part, a filter medium (29) adjacent to the inner wall of the filter pot (3) in the form of a hollow cylindrical body leaving the central region of the interior (5) free, and having fluid passages (31) in the wall of the filter pot (3) surrounding the filter medium (29), is characterized in that a ring body (53) which is envisaged as a connecting part between filter pot (3) and lid part (37) and has a jacket part (55) which extends axially along the end section (57) of the filter pot (3) and an end part (51) which extends radially inward and spans the edge of the filter pot (3) and the edge of the lid part (37) is provided, and in that, on the end part (51) of the ring body (53) and on the lid part (37), interacting snap connectors (59, 61) are provided to form a snap connection between end part (51) and lid part (37).

Abstract: A filter element includes a filter cylinder whose outer side rests against a fluid-permeable supporting tube (15). The inside (3) of the filter cylinder can be flown through by the fluid to be filtered. The filter cylinder is formed by a filter mat web. The filter mat web has a series of folds (9) that rest against one another at least in areas. Both ends of the filter mat web are joined to one another at a junction (5) to form an annular body (1). The filter element includes a device that acts upon the junction (5) to prevent, in the area of the junction (5), a bulging of the folds (9) caused by the flow of the fluid.

Abstract: A process for production of a filter element includes forming a cylinder by bending a flexible filter mat having a series of folds adjacent to one another at least in individual end areas on longitudinal end edges thereof such that the end areas overlap with end edges being aligned along a length of the cylinder, joining the end areas on an exterior of the cylinder along a junction seam, and reversing the cylinder inside out such that an annular filter element is formed with the junction seam on an interior thereof.

Abstract: A venting device, particularly for fluid storing reservoirs such as tanks, comprising a connecting part for establishing an air-conducting and/or fluid-conducting connection to the inside of the reservoir and comprising a closing part, which can be removed from the connecting part and which is provided, in particular, in the form of a closure cap. When the closure cap is fastened, at least one leakage point in the form of an air exchange opening exists between the closure cap and the connecting part. By virtue of the fact that a labyrinth-like seal effectively seals the respective leakage point at least from penetrants such as water and/or cleaning chemicals while not impairing an air exchange for the actual venting, the system of seal passages inside the labyrinth seal prevents the unwanted damage causing entry of the respective penetrant, also in the form of dirt or dust, into the reservoir or tank interior.

Abstract: The invention relates to a venting device, particularly for fluid-storing reservoirs such as tanks, comprising a connecting part (10) for establishing an air-conducting and/or fluid-conducting connection (14) to the inside of the reservoir and comprising a closing part (16), which can be removed from the connecting part (10) and which is provided, in particular, in the form of a closure cap. When the closure cap (16) is fastened, at least one leakage point (18) in the form of an air exchange opening exists between the closure cap and the connecting part (10).