摘要:
The invention relates to a fluid assembly having a fluid block, a controller, and at least one solenoid valve. The solenoid valve has a valve cartridge connected to the fluid block and a corresponding solenoid unit connected to the controller, whereby the controller is connected to the fluid block in a sealing manner via a housing pan. According to the invention, the housing pan has a functionally integrated housing bottom, which is integrated in a magnetic circuit of the at least one solenoid valve and, at least in the pass-through region of the at least one solenoid valve, is made of magnetically conductive material, preferably a metal.
摘要:
A magnetic valve that switches at high differential pressures and furnishes a large flow cross section. The magnetic valve has an armature, which when current is supplied to a coil is movable toward a pole core counter to the force of a restoring spring. The armature is capable of opening an auxiliary valve of small sealing diameter directly and a main valve of large sealing diameter indirectly. The auxiliary valve and the main valve have a common closing body, which is movable relative to the armature with a limited stroke. The auxiliary valve communicates through a conduit of the closing body with the outflow side of the magnetic valve. In the open position of the magnetic valve, the closing body is held by a stop ring of the armature. The magnetic valve is suitable in particular for slip-controlled hydraulic brake systems of motor vehicles.
摘要:
The invention relates to a piston, through which a fluid can flow, for a piston pump, which piston has a longitudinal bore into which a spring-loaded inlet valve body is inserted. In order to be able to bring a helical compression spring, which loads the inlet valve body, to bear against an annular shoulder in the longitudinal bore and to be able to check and if necessary improve its seating after installation, the invention proposes to produce the inlet valve body in two parts comprising the inlet valve disk and the inlet valve stem and to join these two parts to one another after the helical compression spring has been correctly inserted into the piston. The inlet valve disk can for example be joined to the inlet valve stem by ultrasonic welding, thermoplastic riveting or screwing.
摘要:
The ignition coil includes a cast resin portion; a primary winding embedded in the cast resin portion; a secondary winding embedded in the cast resin portion; at least one contact part electrically connecting an end portion of an ignition cable and a high-voltage end of the secondary winding; a retaining part (4) having a throughgoing aperture for receiving the ignition cable (2), the retaining part (4) protruding from the cast resin portion (14); a shrink hose (3) acting as a sealing means surrounding the end portion of the ignition cable (2) concentrically, extending through the aperture of the retaining part (4) and beyond the retaining part (4); and a shrink sleeve (6) acting as additional sealing means concentric with the end portion of the ignition cable (2) and connected with the end portion of the ignition cable at least in one end region and with the retaining part (4) at least in another end region thereof so as to seal against moisture.
摘要:
A needle bearing for use in a pump has an inner race, embodied as an eccentric sleeve, needles, and an outer race with rims oriented radially inward on both of its face ends, of which one rim is intended to secure the axial position of the needles and the outer race by engagement with the inner race, in that a rim fits over one end face of the inner race. In the pump unit, the needle bearing is disposed with an axial gap from a roller bearing on a shaft of a drive motor. The rim of the outer race engages this gap.
摘要:
A solenoid valve which guarantees the reliable opening of the valve, even when there are great pressure differences. The solenoid valve has an armature which receives a tappet, that can be longitudinally moved in the solenoid valve. A restoring spring, which transports the armature with the tappet into a closed position of the solenoid valve, engages one side of a collar of the tappet and a compression spring, which acts in the opposite direction from this restoring spring and is supported on the armature. The compression spring has a greater initial stress than the restoring spring. Pressure drops can produce a hydraulic closing force on the tappet, which force is directed counter to the magnetic force action. When the solenoid valve is switched over into the open position, the armature therefore executes a partial stroke (h) counter to the action of the compression spring before the armature carries the tappet along with it by means of engaging the collar, as a result of the magnetic force, which increases with the increasing armature stroke (H). The solenoid valve can be employed in a suction line between a master cylinder and a regenerative high pressure pump of a hydraulic brake system for motor vehicles.
摘要:
In a piston with an encompassing seal, which is seated slidably in a cylindrical receiving bore of a structural part such as a housing block and which can be acted upon by pressure on at least one end, the piston is intended to have a shoulder for receiving the seal. This shoulder divides a cylindrical running face of the piston of a segment having a jacket face, and a groove is formed into the jacket face for receiving a ring that secures the seal in the axial direction and also acts as a stripper ring protecting the sealing ring.
摘要:
The invention relates to a pressure accumulator, especially for a hydraulic unit of a hydraulic vehicle braking system with electronic wheel slip regulation. Pressure accumulators having an accumulator piston acted on by a piston spring are known according to prior art. In order to save costs on parts for the piston spring and to save space in terms of the pressure accumulator, a piston spring having at least one first spring winding is used. According to the invention, the outer diameter of the first winding is smaller than the inner diameter of a second spring winding connected thereto.
摘要:
The invention relates to a hydraulic assembly of a vehicle brake system with traction control. Hydraulic assemblies include a housing block, which is to be fitted with hydraulic components, and an electronic control unit for activating the components. It is known for a hydraulic connection for a pressure sensor to be provided on a housing block and for the signal of the pressure sensor to be taken into consideration for brake pressure regulation in the control unit. The invention proposes an advantageous arrangement of at least one second hydraulic connection for a second pressure sensor on the housing block in combination with blind bores of the hydraulic connections. The blind bores can be positioned in a variable fashion and formed with different lengths during the production of the housing block. In this way, it is possible for the pressure in different hydraulic partial regions of a vehicle brake system to be sensed in an application-specific manner. The number of such hydraulic connections for pressure sensors has no influence on the external dimensions of the housing block.
摘要:
The present invention relates to a method for pre-filling a low-pressure storage device (14) of a motor vehicle braking system (17), having a changeover valve (8), a hydraulic pump (9), an outlet valve (13), and a low-pressure storage device (14) situated in a suction line of the hydraulic pump (9). The low-pressure storage device (14) can be pre-filled in a particularly simple and low-noise manner if the actuation of the foot brake pedal (1) is monitored using a sensor mechanism and, when there is an actuation, the changeover valve (8) is closed in order to lock in the braking pressure acting on the wheel brake (11), and at least one of the outlet valves is opened in order to release the braking pressure into the low-pressure storage device (14).