Abstract: Electropneumatic double regulating valve for an air-operated vehicle brake system, which is disposed centrally on a wheel axle, equipped with two brakes, with a common relay valve housing (1), in which is integrated for each brake an assigned regulating valve unit, which comprises for valve actuation a control piston, which can be axially adjusted and is disposed inside an assigned control chamber (3a, 3b) and which is driven with a control pressure by way of an electromagnetic pilot valve assembly, housed in an adjacent pilot valve housing, for independent axial adjustment, whereby the pilot valve housing is connected detachably to the relay valve housing (1) by way of a sealing arrangement that lies in-between, whereby the sealing arrangement is designed as one-piece and comprises two sealing ring segments (5a, 5b), which are in essence ring-shaped and are assigned to one control chamber (3a, 3b) each and which are connected together by means of several footbridges (6a to 6c), which are molded on in-between

Abstract: Electropneumatic control valve for a pneumatic brake system of a vehicle having a relay valve housing in which an axially adjustable control piston is arranged for actuating a valve seat arrangement which switches the compressed-air flow between at least one exterior brake line connection, a supply pressure connection and a bleeder connection. The control piston is axially guided by means of a coaxial guiding arrangement. The guiding arrangement comprises a separate guiding sleeve which is stationarily fastened to the pilot valve housing and which is provided with an upper guiding section which, for the axial guidance, corresponds with a passage bore in the control piston, and which, in addition, has a lower tube section of a smaller outside diameter adjoining the upper guiding section in order to guide the outgoing air flowing through an integrated axial bleeder duct directly to the bleeder connection.

Abstract: Electropneumatic control valve for a pneumatic brake system of a vehicle, having a divided valve housing consisting of a lower relay valve housing and an upper pilot valve housing which enclose a control chamber in which an axially adjustable control piston is guided. The piston can be acted upon by way of a pilot valve arrangement accommodated in the pilot valve housing in order to switch the compressed-air flow between at least one brake line connection arranged on the relay valve housing, a supply pressure connection and as a bleeder connection by way of an interior valve seat arrangement. A control connection of a back-up valve of the pilot valve arrangement is also arranged on the relay valve housing, and by way of a valve-internal pressure medium duct is connected with the back-up magnetic valve accommodated in the pilot valve housing. Internal pressure medium ducts are arranged and sealed in a manner that allows the pilot valve housing to be produced without machining.

Abstract: An electropneumatic regulating valve for an air brake system of a motor vehicle, with a valve seat assembly which switches compressed air flow between at least one external brake line connection, a feed pressure connection, and a venting port, the valve seat assembly including a coaxial valve seat assembly with external and internal valve seats and a pot-like sealing cup with a coaxial passage. A ring-shaped, surface of the sealing cup seals between the exterior and interior valve seats. The opposing face of the ring-shaped surface has two coaxial sealing lip segments projecting away from the ring-shaped surface and forming an annular space therebetween. The sealing cup includes a reinforcing insert with a U-shaped cross-section located in the annular space which reinforces the ring-shaped surface and the sealing lip segments. The insert also has a molded-on shoulder which reinforces the inside radial area of the sealing area.

Abstract: Electropneumatic double regulating valve for an air-operated vehicle brake system, which is disposed centrally on a wheel axle, equipped with two brakes, with a common relay valve housing (1), in which is integrated for each brake an assigned regulating valve unit, which comprises for valve actuation a control piston, which can be axially adjusted and is disposed inside an assigned control chamber (3a, 3b) and which is driven with a control pressure by way of an electromagnetic pilot valve assembly, housed in an adjacent pilot valve housing, for independent axial adjustment, whereby the pilot valve housing is connected detachably to the relay valve housing (1) by way of a sealing arrangement that lies in-between, whereby the sealing arrangement is designed as one-piece and comprises two sealing ring segments (5a, 5b), which are in essence ring-shaped and are assigned to one control chamber (3a, 3b) each and which are connected together by means of several footbridges (6a to 6c), which are molded on in-between

Abstract: Electropneumatic control valve for a pneumatic brake system of a vehicle having a relay valve housing (1) in which an axially adjustable control piston (5) is arranged for actuating a valve seat arrangement (8) which switches the compressed-air flow between at least one exterior brake line connection (11), a supply pressure connection as well as a bleeder connection (13), the control piston (5) being axially guided by means of a coaxial guiding arrangement and being capable of being acted upon by way of at least one electromagnetic pilot valve (6) for the axial adjustment, which pilot valve (6) is accommodated in a pilot valve housing (2) connected with the relay valve housing (1), in which case the guiding arrangement of the control piston (5) according to the invention comprises a separate guiding sleeve (17) which is stationarily fastened to the pilot valve housing (2) and which is provided with an upper guiding section (19) which, for the axial guidance, corresponds with a passage bore (18) in the control

Abstract: Electropneumatic control valve for a pneumatic brake system of a vehicle, having a divided valve housing (1) which consists of a lower relay valve housing (2) and an upper pilot valve housing (3), which enclose a control chamber (5), in which an axially adjustable control piston (6) is guided which can be acted upon by way of a pilot valve arrangement (7) accommodated in the pilot valve housing (3) in order to switch the compressed-air flow between at least one brake line connection (12) arranged on the relay valve housing (2), a supply pressure connection (18) as well as a bleeder connection (14) by way of an interior valve seat arrangement (11), in which case the control connection (23) of a back-up valve (17) of the pilot valve arrangement (7) is arranged on the relay valve housing (2), and by way of a valve-internal pressure medium duct (24), is connected with the back-up magnetic valve (17) accommodated in the pilot valve housing (3), in order to create a pilot valve housing (3) which can be produced wit

Abstract: The invention relates to a piloted valve, in particular an electropneumatic control valve for a pneumatic brake system of a vehicle. Said valve comprises a divided valve housing, in which at least one control piston that can be axially displaced for actuating a valve seat arrangement, which switches the compressed air flow between external connections, is located. The control piston can be impinged by at least one electromagnetic pilot valve to cause the axial displacement, said valve being lodged in a pilot valve housing part that is connected to the relay valve housing part, whereby a pressure compensation channel with multiple bends is configured in the vicinity of the wall of the control chamber in the valve housing for bleeding a pressureless hollow chamber in the interior of the valve. The outlet opening of said channel that leads to the exterior is located at a distance behind a cover hood on the valve housing and is protected against water splashes.

Abstract: The invention relates to a piloted valve, in particular an electropneumatic control valve for a pneumatic brake system of a vehicle. Said valve comprises a divided valve housing, in which at least one control piston that can be axially displaced for actuating a valve seat arrangement, which switches the compressed air flow between external connections, is located. The control piston can be impinged by at least one electromagnetic pilot valve to cause the axial displacement, said valve being lodged in a pilot valve housing part that is connected to the relay valve housing part, whereby a pressure compensation channel with multiple bends is configured in the vicinity of the wall of the control chamber in the valve housing for bleeding a pressureless hollow chamber in the interior of the valve. The outlet opening of said channel that leads to the exterior is located at a distance behind a cover hood on the valve housing and is protected against water splashes.

Abstract: A trailer control valve having control pistons for actuating a double seat valve, which can control the communication between a compressed air reservoir, a compressed air consumer, and a pressure relief location. In order to structurally simplify the trailer control valve, a control piston is provided that is jointly associated with an electrical control circuit and a pneumatic control circuit of a service brake system. Furthermore, a valve is provided that is connected to the pneumatic control circuit of the service brake system, which closes the pneumatic control circuit of the service brake off from to the trailer control valve when the electrical control circuit is functional, and in the event of a failure of the electrical control circuit, unblocks the pneumatic control circuit of the service brake system.

Abstract: The invention relates to a unit for a pneumatic brake system for a utility vehicle, which has a valve block into which magnet valves are inserted. To secure the magnet valves on the valve block, the unit includes a retaining plate which is secured to the valve block and which has spring elements integral with it the retaining plate presses the magnet valves into valve receptacles of the valve block. The unit has the advantage that the retaining plate balances out tolerances in the manufacture of the valve block and the production of the magnet valves. In a further feature, the unit mounts pressure sensors on the valve block in a same manner as the magnet valves.