Abstract: The invention relates to a filter element assembly for filtering a fluid, optionally including water separation. A filter element has at least one annular filter bellows which is flowed through in the radial direction, and at least one end plate arranged on the filter bellows on the end side. At least one circumferential sealing element is arranged on the end plate. The sealing element seals the clean side from the raw side of the filter element. The sealing element is compressed between a first housing part and a second housing part of the filter system, sealing a housing interior from the environment. The invention also relates to a filter system having the filter element assembly with the sealing element.

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.

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.

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 concerns a filter element (1), in particular of a fuel filter for motor vehicles. The filter element (1) is received in a filter housing (2) and comprises a filter body (3) with a filter material (5) that is arranged in folds (4). Between two folds (4) a heater installation space is provided and configured to receive a heating element (6) for the fuel.

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 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.

Abstract: A filter (18) is fastened by means of a releasable detent connection (20) in a fastening housing part (14). One detent component (32) is connected to the filter element (18) and one detent component (36) is connected to the fastening housing part (14). At least one detent means (32) of one of the detent components engages in a bayonet-like manner in a cut-out (38) in the other detent component (36). One switching component (60) of a switching device (58) is connected to the filter element (18) and one switching component (62) is connected to the fastening housing part (14). One of the switching components (60) includes at least one switching lug (76) extending radially to a rotational/plug-in axis (30) of the filter (10), and one of the switching components (62) includes a switching slot (78) for guiding the switching lug (76).

Abstract: The invention concerns a filter element (1), in particular of a fuel filter for motor vehicles. The filter element (1) is received in a filter housing (2) and comprises a filter body (3) with a filter material (5) that is arranged in folds (4). Between two folds (4) a heater installation space is provided and configured to receive a heating element (6) for the fuel.

Abstract: The invention concerns a filter element (1), in particular of a fuel filter for motor vehicles. The filter element (1) is received in a filter housing (2) and comprises a filter body (3) with a filter material (5) that is arranged in folds (4). Between two folds (4) a heating element (6) for the fuel is arranged.

Abstract: The invention concerns a filter element (1), in particular of a fuel filter for motor vehicles. The filter element (1) is provided for exchangeable use in a filter housing (2) and comprises a filter body (3) with a filter material (5) that is arranged in folds (4). Between two folds (4) a heating element (6) for the fuel is arranged.

Abstract: A liquid filter suitable for motor vehicles which includes a filter head (11), a vessel (12) and a filter element (16) disposed within the vessel (12) sealingly separating an inlet (14) from an outlet (15) such that liquid from the inlet must flow through the filter element to reach the outlet. The filter element (16) has guide projections (27, 28) positioning the filter element (16) within the vessel (12). Prior to installation, the filter element (16) is preassembled into the vessel (12) and fixed in position by pushing the filter element (16) into an element guide (29), after which the preassembly is screwed onto the filter head (11). When the vessel (12) is unscrewed from the filter head (11), the filter element (16) slides out of the element guide (29) and moves axially upwardly to free a volume V. Liquid flowing into the vessel (12) from the higher regions of the liquid filter (10) can flow into this volume, thus enabling drip-free replacement of the filter element.

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.

Abstract: The invention concerns a filter element (1), in particular of a fuel filter for motor vehicles. The filter element (1) is provided for exchangeable use in a filter housing (2) and comprises a filter body (3) with a filter material (5) that is arranged in folds (4). Between two folds (4) a heating element (6) for the fuel is arranged.

Abstract: The invention relates to a fuel filter (1) with a device for separating water from the fuel. This device comprises at least one filter screen element (6) placed in a filter housing (2) which is located downstream a filter element (3) for the filtration of particles from the fuel, a tank (15) located under the filter screen element (6) at the filter housing (2) in which the separated water droplets are collected, and a device for deviating the fuel between the filter element (3) and the filter screen element (6).

Abstract: The invention concerns a filter insert (1) that is provided as an exchangeable insert in an oil filter of an internal combustion engine, as well as a corresponding oil filter. The oil filter comprises a filter housing (3) separable along a separating plane (2) and the exchangeable filter insert (1). Two housing parts (4, 5) of the filter housing (3) are sealed relative one another along the separating plane (2) by means of a seal (6). The seal (6) is captively secured on the filter insert (1).

Abstract: A liquid filter suitable for motor vehicles which includes a filter head (11), a vessel (12) and a filter element (16) disposed within the vessel (12) sealingly separating an inlet (14) from an outlet (15) such that liquid from the inlet must flow through the filter element to reach the outlet. The filter element (16) has guide projections (27, 28) positioning the filter element (16) within the vessel (12). Prior to installation, the filter element (16) is preassembled into the vessel (12) and fixed in position by pushing the filter element (16) into an element guide (29), after which the preassembly is screwed onto the filter head (11). When the vessel (12) is unscrewed from the filter head (11), the filter element (16) slides out of the element guide (29) and moves axially upwardly to free a volume V. Liquid flowing into the vessel (12) from the higher regions of the liquid filter (10) can flow into this volume, thus enabling drip-free replacement of the filter element.

Abstract: A liquid circuit for filtering a liquid, comprising a liquid storage vessel (10), a liquid pump (17), a consumer or user device (14), a filter element (23) and a controller (24). A heated liquid can be supplied at least partly to the filter element (23). The liquid circuit may be used in liquid systems in which a liquid, such as water, oil or fuel, is filtered and at least part of the liquid is returned to the storage vessel (10). The liquid is pumped in the liquid circuit from the storage vessel (10) by the pump (17) through lines (11, 13, 15, 16), filtered by filter element (23) and supplied to the consumer device (14). Excess liquid not required by the consumer device (14) is returned through liquid return line (15) to the controller (24) which directs the liquid either to the filter element (23) or the storage vessel (10), depending on the liquid temperature.

Abstract: A circuit for filtering a liquid, comprising a storage vessel (10), a pump (17), a consumer device (14), a filter element (23) and a controller (24). The circuit maybe used in systems where liquid, e.g. water, oil or fuel, is filtered and at least part thereof is returned to the storage vessel. Liquid is pumped in the circuit from the storage vessel by the pump through lines (11, 13, 15, 16), filtered by filter (23) and supplied to the consumer device. Excess liquid not required by the consumer device (14) is returned via return line (15) to the controller (24) which directs the liquid either to the filter or the storage vessel—depending on liquid temperature. The controller (24) and the filter are arranged in a common housing (18) having connectors for an unfiltered liquid inlet (19), a filtered liquid outlet (20), a liquid return (21) and a liquid outlet (22). The connectors (19–22) enable rapid assembly of the circuit.

Abstract: A fuel filter having a housing, a filter element disposed inside the housing, and an electromagnetically operable valve (50) disposed in the lower region of the fuel filter, which valve operates both an outlet (5) for discharging water and an inlet for supplying air. The valve has a single electromagnet (32) with an axially displaceable core (34) on which both a valve member (37) for the water discharge valve and a valve member (42) for the air supply valve are disposed.