Abstract: A filter element is disclosed having at least one mat-type or sheet-type filter web (3), which forms by its outside (5) at least in part a filter jacket (7) that is closed on the peripheral side, wherein along the outside (5) of the filter jacket (7) a surface configuration or modification takes place in such a manner that structures (11) that are delimited from the remaining surface (9) of the filter web (3), are joined to the filter jacket (7) and are of presentable contour and/or thickness are created, wherein the structures (11) are generated by spray-fibre application and shaping, in such a manner that in time sequence, first the structures (11) and then the filter jacket (7), or in reverse order in time sequence, first the filter jacket (7) and then the structures (11), or that simultaneously both the filter jacket (7) and the structures (11) are formed in negative or positive shape on the filter jacket (7).

Abstract: The invention relates to a filter device, in particular for fluids contaminated with water admixtures, such as diesel oil, comprising a filter housing (1), which can hold at least one filter element (9), the fiber medium (11) of which separates an untreated side (13) from a treated side (19) during the filtration process in the filter housing (1), wherein a water collecting unit (5) is provided, which holds separated water on the treated side, wherein said filter device is characterized in that water that has been separated on the untreated side (13) also reaches the collecting unit (5) and in that mutually separated collecting chambers (61, 67) are present in the collecting unit (5) for the water that is discharged both at the treated side (19) and at the untreated side (13).

Abstract: A filter element (1) for filtering fluids, such as hydraulic fluids or gases, is in a filter housing (12) having an inlet (18) for the fluid to be filtered, an outlet (20) for the filtered fluid. The filter element has a data storage (52). Data stored in the data storage (52) is electronically readable from the data storage (52) by a read and/or write device (70). An antenna (60) extends outside the data storage (52) and provides the signal coupling between the data storage (52) and the read and/or write device (70). The antenna (60) extends at least in sections about a longitudinal axis (44) of the filter element (1) such that independently from the angular position of the filter element (1) and the attached data storage (52) a signal coupling between the data storage (52) and the read and/or write device (70) is ensured.

Abstract: The invention relates to a filter, in particular for fluids polluted by admixtures of water, such as diesel oil, comprising a filter housing (1) in which at least one filter element (9) can be received. During the filtering process, fluid can flow through the filter medium (11) from the outer unfiltered side (13) of the filter element into an inner filter cavity (17) forming the filtered side (19). The filter is characterised in that a water passage (39) inside a pipe connector (35) of an end cap (23) forms a fluid path (51), which is separated from the other fluid path (55) that forms the connection between the inner filtered side (19) of the filter element (9) and a fluid outlet (37) of the housing (1) in the functional position of the filter element (9).

Abstract: The invention relates to a filter device, in particular for fluids polluted with admixtures of water, such as diesel oil, comprising a filter housing (1) which has a fluid inlet (43) and a fluid outlet (44) and in which at least one filter element (9) can be received. During the filtering process, the respective fluid can flow through the filter medium (11) of the filter element from the unfiltered side (14) to the filtered side (13) of the filter medium, which surrounds an inner filter cavity (17). On at least one side of the filter medium (11), a water-separating system (23) having a separating region (25) for separated water is present. The water separating system is connected via at least one water opening (35) that is open toward the separating region (25) to a water collecting chamber (45), and the filter element (9) has a passage (29) that forms a fluid connection to the inner filter cavity (17) and can be connected to an element receptacle (47) of the filter housing (1).

Abstract: The invention relates to a filter device for fluids, especially for fuels such as diesel fuel, comprising a filter housing (1) defining a longitudinal axis (19). Said filter housing comprises housing connections in the form of a fluid inlet (14) and a fluid outlet (24) and can accommodate at least one filter element (9). The fluid can, during filtering, flow through a filter medium (11) surrounding an inner filter cavity, and the filter element (9) is enclosed by an end cap (21) on its lower end facing the bottom part (5) of the filter housing (1). Said end cap comprises a passage (29) forming a fluid connection to the inner filter cavity (17) and can be fixed to an element retainer (23) of the filter housing (1). The filter device is characterized in that the element retainer (23) comprises retaining piece (35) on the bottom part (5) of the filter housing (1), said retaining piece being open towards the filter element (9) and a fluid channel (37) leading to a housing connection (24) running into it.

Abstract: The invention relates to a filter device, in particular for fluids polluted with admixtures of water, such as diesel oil, comprising a filter housing (1) which has fluid connections in the form of a fluid inlet (51) and a fluid outlet and in which at least one filter element (9) can be received. During the filtering process, fluid can flow through the filter medium (11) of the filter element from the unfiltered side (13) to the filtered side (19) of the filter medium, which surrounds an inner filter cavity (17). On one side of the filter medium (11), a water-separating device (26) and a separating region (27) for separated water are present, and the filter element (9) has a passage (43) that forms a fluid connection to the filter cavity (17) and at least one water opening (47) that is open toward the separating region (27). The filter element can be fixed to an element receptacle (29) of the filter housing (1) and can be connected to a water collecting chamber (33).

Abstract: The invention relates to a device (2) for purifying water (6, 9) contaminated with organic substances, that is drained or collected from filters, especially fuel filters (4) or elements of a fuel system. Said device is characterised in that hydroxyl radicals are formed from the water (6, 9) by means of a separating device (8), said hydroxyl radicals oxidising the impurities, especially organic substances, as much as possible, and converting them into compounds such as CO2.

Abstract: The invention relates to a filter element (1) for filtering fluids, such as hydraulic fluids or gases, the filter element (1) being accommodatable in a filter housing (12), having an inlet point (18) for the fluid to he filtered and an outlet point (20) for the filtered fluid, the filter element (1) comprising a data storage (52), data stored in the data storage (52) being electronically readable from the data storage (52) by means of a read and/or write device (70), characterized in that an antenna (60) extending outside the data storage (52) is provided for the signal coupling between the data storage (52) and the read and/or write device (70), and that the antenna (60) extends at least in sections about a longitudinal axis (44) of the filter element (1) and thus, independently from the angular position of the filter element (1) and the data storage (52) attached thereto, a signal coupling between the data storage (52) and the read and/or write device (70) is ensured.