A fluid filter for a fluid device with one or more of a pump element and a solenoid valve in a motor vehicle, in particular for an ESP system. The fluid filter is formed by direct injection molding and has at least one filter connecting piece. The filter connecting piece has an outer section, a middle section, and an inner section. The outer section is in the form of a projection that is directed outwards with respect to the fluid filter. The inner section is in the form of a projection that is directed inwards with respect to the fluid filter.

A solenoid valve includes a magnet assembly and a valve cartridge having an armature guided movably inside a capsule, a valve insert, a slide which is guided movably inside the valve insert and has a closing element and a sealing element, and a valve body with a valve seat. A main valve includes the sealing element and the valve seat. The slide is formed in two parts with the sealing element as the first part and the closing element as the second part. When the valve is not energized, the valve is open, and when the valve is energized, the sealing element seals in the valve seat. The sealing element and the closing element are made of different materials, and the material of the sealing element allows a partial elasticity of the slide while the material of the closing element allows a partial stiffness of the slide.

A plate armature damping device for a tilting armature valve includes at least one damping body which can be fixed to a plate armature, with at least one damping material which, on an impact movement of the plate armature in the direction of a counter-element, is elastically deformable on impact on the counter-element. The at least one damping body has a geometric contour including at least one bulge on a surface of the at least one damping body facing the counter-element, which is configured such that, on the impact movement of the plate armature, the volume of the at least one damping body contributing to the damping increases.

A pump device for a brake system of a motor vehicle has a housing, a pressure piston which delimits a pressure chamber in the housing for producing hydraulic pressure mounted in the housing in a longitudinally displaceable manner, a return spring assigned to the pressure piston, a non-return valve which separates the pressure chamber from a pressure connection and only removes the separation when the hydraulic pressure in the pressure chamber is greater than in the pressure connection, and an electromagnetic actuator which includes an armature and an electrically energizable solenoid. The armature is arranged on the pressure piston and the solenoid in and/or on the housing. The pressure piston has an axial through-channel which opens out into the pressure chamber at one end and is assigned to the non-return valve at the other end.

A solenoid valve includes a magnet assembly and a valve cartridge having an armature guided movably inside a capsule, a valve insert, a slide which is guided movably inside the valve insert and has a closing element and a sealing element, and a valve body with a valve seat. A main valve includes the sealing element and the valve seat. The slide is formed in two parts with the sealing element as the first part and the closing element as the second part. When the valve is not energized, the valve is open, and when the valve is energized, the sealing element seals in the valve seat. The sealing element and the closing element are made of different materials, and the material of the sealing element allows a partial elasticity of the slide while the material of the closing element allows a partial stiffness of the slide.

A non-return valve for a solenoid valve includes a movable closure element and a valve structural element with a valve seat that is arranged on a through-opening to perform a direction-orientated throughflow and sealing function. The valve seat has a first region and a second region. The first region of the valve seat forms a support region for a sealing element in order to absorb a supporting force with respect to the closure element. The second region of the valve seat forms a sealing region in order to enable sealing with respect to the closure element. A solenoid valve in one embodiment includes the non-return valve.

The vehicle braking device includes a pilot pressure control portion which executes normal control in which the pilot pressure is controlled in response to the target value of the servo pressure and shortening control in which the change amount of the pilot pressure per unit time is greater than the change amount under the normal control in a mutually different timing, a state judging portion which judges the state of the master piston relating hysteresis of sliding resistance of the master piston based on the detection result of the servo pressure detecting portion or the liquid pressure co-relating with the servo premeasure and a control switching over portion which terminates the shortening control based on the detection result of the servo pressure detecting portion and the detection result of the state judging portion.

Disclosed is a motor vehicle solenoid valve (10). The solenoid valve includes a fixed body (20) intended to be mounted in a hydraulic system of the vehicle, a cylindrical coil supporting unit (40) mounted on the fixed body, a mobile body (30) slidingly mounted in the fixed body through the coil supporting unit and at least a first coil winding (50) arranged about the coil supporting unit and suitable for generating a magnetic field for control of the sliding of the mobile body. The solenoid valve further includes a second coil winding (60) arranged about the first coil winding in order to contain the magnetic field generated by the first coil winding.

The disclosure provides an anti-lock brake device including an oil pressure tank, a first piston and a second piston. The oil pressure tank has an internal space, an oil inlet and an oil outlet that are connected to one another. The first piston is slidably located in the internal space, and has a first oil channel penetrating a contact portion of the first piston and connected to the oil inlet. The second piston is slidably located in the internal space and includes a push portion, and an outer diameter of the push portion is smaller than that of the contact portion. When the second piston is in a closed position, a chamber having a first unoccupied volume is formed in the internal space. When the second piston is moved from the closed position to a depressurized position, the first volume of the chamber is increased to a second volume.

A diaphragm valve (DV), includes: an elastomer-diaphragm (ED) in/on a valve-housing via a radially-outer-edge-bead and interacts with a DV-seat (DVS); a first-control-chamber (CC), delimited by a first-surface, facing away from the DVS, of the ED and loadable and relieved of load by a pressure-medium (PM), and when the first-CC is loaded, the ED is pushed against the DVS; a second-CC, delimited by a second-surface, facing away from the first-surface, of the ED and loadable and relieved of load and surrounds the DVS, and, when the second-CC is loaded by PM, the ED lifts off from the DVS and the second-CC is connected to a PM-flow-channel (FC), on which the DVS is formed at an end-side; and the PM-FC, DVS, ED are coaxial as to an axial-direction, and the smallest thickness of the ED's central-region, as to a radial-direction perpendicular to the axial-direction, is at least 30% of the PM-FC's inner-diameter.