Abstract: A trailer device for driving stabilization of vehicle combinations is provided. In order to design a device for driving stabilization of passenger vehicle trailers in a cost-effective and simple manner, a brake system for braking the trailer by an overrun brake and for stability regulation is designed so as to have separating valves, switching valves, inlet and outlet valves and a pressure build-up pump. A stabilizing coupling is also connected by means of a second pressure medium pump to actuators which can vary the clamping force of the stabilizing coupling between the trailer and tractor vehicle if the second pressure medium pump conveys pressure medium from the storage tank into or out of the actuators.

Abstract: Disclosed are hydraulic/electronic control units (1, 2) for an electronic brake control system. A hydraulic/electronic control unit of current ABS/TCS/ESP systems essentially includes a central hydraulic block (6) and an electronic control unit (1) including control electronics on a control circuit board (4). The circuit board (4) is structured in such a way that it is insulated completely towards the outside on at least one first side (28) and includes an essentially smooth surface. Thus it is possible to use the hydraulic block (6) for cooling the circuit board (4).

Abstract: An electrohydraulic unit assembly for a motor vehicle comprising a receiving body defining a sealing face and at least two connectors fastened to the receiving body of the unit, oriented substantially parallel one to another and separated by a defined distance from one another. Each connector is configured for connecting a fluid conduit to the unit. Each connector includes a screw fitting for fastening the respective hydraulic connection to the receiving body of the unit such that a sealing face of the screw fitting or a sealing face of the fluid conduit is seated on the sealing face of the receiving body. Each screw fitting is rotatably connected to the body and includes two spanner flat portions having different spanner widths.

Abstract: A hydraulic motorcycle braking system is disclosed. In the hydraulic motorcycle braking system a pump suction valve, which is situated in a braking circuit that does not contain an isolating valve or a change-over valve, has a higher opening pressure than a pump suction valve which is situated in a braking circuit provided with an isolating valve and a change-over valve. Accordingly, pressure oscillations initiated during the start-up of the pump cannot have a retroactive effect or only have a slight retroactive effect on the actuated brake master cylinder.

Abstract: A hydraulic motorcycle brake system whose brake circuits are provided with a valve circuit which prevents the pressure which can be generated by the pump from reacting on the manually activated or foot-activated master brake cylinder.

Abstract: The invention relates to a supply device for the supply of pressure fluid into at least one vehicle brake, into a pressure fluid reservoir or into a pressure fluid accumulator, with a pressure fluid inlet and a pressure fluid outlet as well as with the following features: a piston is movably arranged in an accommodating member and has at least two hydraulically active diameters for the supply in the direction of the pressure fluid outlet, at least one non-return valve is used for the ventilation of a working chamber into which the piston is immersed. It is the essence of the invention that the piston has a multi-part design and comprises at least two synchronously movable partial pistons, with the first partial piston exhibiting the first hydraulically active diameter, and the second partial piston exhibiting the second hydraulically active diameter.

Abstract: A hydraulic motorcycle brake system includes an accommodating member for the hydraulic connection of two master brake cylinders to the front-wheel brake and rear-wheel brake having several pressure channels for the front-wheel circuit and rear-wheel brake circuit, and allowing manufacture in a simplest possible manner, and a pair of wheel brake connections connectable to the rear-wheel brake and front-wheel brake open into a lateral surface of the accommodating member, the wheel brake connections being arranged between a pair of pressure connections that are connectable to the two master brake cylinders.

Abstract: A vehicle steering system for motor vehicles has a steering handle operable by the driver and connected to steerable vehicle wheels in terms of effect to determine a direction of driving. The vehicle steering system includes a hydraulic working cylinder having two directions of effect, as well as a hydraulic pressure source, which applies hydraulic pressure to a valve assembly. The valve assembly controls the magnitude of the hydraulic pressure conveyed to the working cylinder and determines the direction of effect of the working cylinder. The valve assembly has two separated valves, the first valve determining the direction of effect of the working cylinder, while the second valve controls the working pressure for the hydraulic working cylinder.

Abstract: A hydraulic unit for a slip-controlled brake system, comprising an accommodating member accommodating inlet and outlet valves in several valve accommodating bores. The inlet and outlet valves thereof being necessary for brake slip control are arranged in one single valve row (X) in a particularly space-saving fashion.

Abstract: In order to produce a compact hydraulic unit for use in an electrohydraulic braking system, the invention discloses that a first accommodating bore for a first feeding device of a pump is passed through between valve accommodating bores of a first and second valve row, and in that second and third accommodating bores for the accommodation of second and third feeding devices of the pump ae passed through between valve accommodating bores; of a third valve row.

Abstract: The invention relates to an electrohydraulic assembly for an electronically controlled brake system with an accommodating member which includes accommodating bores for electrohydraulic valves, accommodating bores for hydraulic supply devices and an accommodating bore for at least one roller bearing, and with hydraulic channels and pressure fluid ports, as well as with an electric motor comprising a rotor with a shaft that is mounted with the roller bearing in the associated accommodating bore in the accommodating member and used to drive the supply devices, and with an electronic control unit being connected to the electric motor by means of a plug penetrating a through-bore in the accommodating member. The objective is to provide a safe and comfortable operating characteristics even in consideration of extreme environmental influences.

Abstract: An electromagnetic valve includes a non-return valve (1) in a bypass connection for bypassing two valve closure members (16, 17) in their closed switch position, for what purpose the non-return return valve (1) is arranged outside the valve housing (2) in an annular member (3), which is arranged fluid-tightly in the area of the pressure fluid outlet (4) between a valve-accommodating bore (5) and the valve housing (2).

Abstract: The present invention relates to a hydraulic unit whose ventilation system includes a pressure compensating channel (1) that extends transversely to the motor- and pump accommodating bore (2, 11) from the second housing surface (A2) through the motor accommodating bore (2) in the direction of a third housing surface (A3) in the accommodating member (3) positioned diametrically to the second housing surface (A2).

Abstract: A conveying device for a vehicle brake system, to convey pressure fluids into at least one vehicle brake, or to convey pressure fluids into a pressure fluid accumulator, or to convey pressure fluids into a master brake cylinder with at least one moveable piston (2) in a receptacle (4) to displace pressure fluids from a working chamber (5?), has at least one non-return valve (9,9?) to vent the working chamber (5) and to temporarily separate a hydraulic connection between the working chamber (5) and a hydraulic channel, whereby the non-return valve (9) must have at least one valve seat (11) and one valve body (12). To achieve the simplest possible assembly of the non-return valve (9), the valve seat (11) is assembled from several special valve seat segments (13,14).

Abstract: In order to produce a compact hydraulic unit for use in an electrohydraulic braking system, the invention discloses that a first accommodating bore for a first feeding device of a pump is passed through between valve accommodating bores of a first and second valve row, and in that second and third accommodating bores for the accommodation of second and third feeding devices of the pump ae passed through between valve accommodating bores; of a third valve row.

Abstract: The invention relates to a supply device for the supply of pressure fluid into at least one vehicle brake, into a pressure fluid reservoir or into a pressure fluid accumulator, with a pressure fluid inlet and a pressure fluid outlet as well as with the following features: a piston is movably arranged in an accommodating member and has at least two hydraulically active diameters for the supply in the direction of the pressure fluid outlet, at least one non-return valve is used for the ventilation of a working chamber into which the piston is immersed. It is the essence of the invention that the piston has a multi-part design and comprises at least two synchronously movable partial pistons with the first partial piston exhibiting the first hydraulically active diameter, and the second partial piston exhibiting the second hydraulically active diameter.

Abstract: The invention relates to a supply device for the supply of pressure fluid into at least one vehicle brake or into a pressure fluid accumulator, wherein a piston is movably arranged in an accommodating member, a carrier bears a non-return valve arranged coaxially to the piston for the purpose of ventilating a working chamber into which the piston plunges, and wherein a resetting spring is arranged between the carrier and the piston. It is the essence of the invention that a multi-piece cage allows inserting the resetting spring into the cage parts, the cage parts comprise fastening means that lock the cage due to relative displacement of the cage parts, and the resetting spring is caged and simultaneously elastically preloaded under the relative displacement of the cage parts.

Abstract: The invention relates to an electrohydraulic assembly for an electronically controlled brake system with an accommodating member which includes accommodating bores for electrohydraulic valves, accommodating bores for hydraulic supply devices and an accommodating bore for at least one roller bearing, and with hydraulic channels and pressure fluid ports, as well as with an electric motor comprising a rotor with a shaft that is mounted with the roller bearing in the associated accommodating bore in the accommodating member and used to drive the supply devices, and with an electronic control unit being connected to the electric motor by means of a plug penetrating a through-bore in the accommodating member. The objective is to provide a safe and comfortable operating characteristics even in consideration of extreme environmental influences.

Abstract: The present invention relates to a motor/pump unit, especially for slip-controlled motor vehicle brake systems, including an accommodating member for hydraulically active components, an internal gear pump arranged in a bore of the accommodating member and comprising pump components such as a pinion/internal gear combination arranged between two housing parts, wherein the pump components form a pre-assembled unit, and including a motor for driving the internal gear pump. An object of the invention is to devise a motor/pump unit, which allows a space-saving and low-cost integration of an internal gear pump in an accommodating member. This object is achieved in that the housing parts can be arranged preliminarily by at least one securing element in such a fashion that the final alignment of the housing parts relative to each other takes place when the unit is inserted into the accommodating member.

Abstract: The present invention relates to a hydraulic unit whose ventilation system includes a pressure compensating channel that extends transversely to the motor and pump accommodating bore from the second housing surface through the motor accommodating bore in the direction of a third housing surface in the accommodating member positioned diametrically to the second housing surface