Abstract: A cup-shaped cover of a pedal travel simulator, hydraulic accumulator, or a damper chamber, using a radially resilient connecting ring, which protrudes into a groove of the cover and into an opposing groove of a receptacle of a hydraulic block of a traction slip controller of a hydraulic vehicle braking system, to fasten inseparably at the hydraulic block.

Abstract: A non-return valve for a vehicle hydraulic-power brake system. The non-return valve has a valve-seat part in the form of an apertured disk, onto which is pressed a valve cage in which a valve ball is disposed as shut-off member and a helical compression spring is disposed as valve spring. A bowl-shaped filter is secured in a depression in the valve-seat part opposite the valve cage.

Abstract: In order to prevent rotation of a piston of a hydraulic unit of a hydraulic vehicle braking system, a sleeve is provided having axially parallel cylindrical pins constituting rotation prevention elements on its inner circumference, the rear ends of which elements are pressed into axially parallel holes in an inwardly projecting flange of the sleeve, and the front ends of which are inserted into axially parallel blind holes in a diameter step in a mouth of the cylindrical hole in a hydraulic block of the hydraulic unit. A method for assembling the hydraulic unit thus configured is also described.

Abstract: In a pedal feel simulator, in particular for a vehicle brake system, with a piston guided axially displaceably in a cylinder bore against a spring force, the piston is designed in two parts from a first piston part and a second piston part, wherein the first piston part is adapted to be designed identically across several pedal feel simulator types, and the second piston part is designed with at least one different axial dimension across several pedal feel simulator types.

Abstract: A pedal travel simulator for a hydraulic powered vehicle braking system. In order to realize a “jump-in,” a first piston spring is provided that, after a first displacement path, loads a simulator piston of the pedal travel simulator with a spring force that is higher by a multiple than that of a second piston spring that loads the simulator piston during the first displacement path.

Abstract: A nut of a helical gear of a piston pump of a hydraulic vehicle power brake system. The nut has a plastic body that is covered by a metal sleeve. The plastic body has a through hole having a nut thread.

Abstract: A cuboidal hydraulic block of a hydraulic power unit of a hydraulic power vehicle braking system for use in a left-hand drive vehicle or a right-hand drive vehicle to be attachable, rotatably by 180° about a horizontal axis, at a splashboard of a motor vehicle. An electric motor of a power brake pressure generator is thus selectively situated on a right or a left side of the hydraulic block.

Abstract: A hydraulic block for a hydraulic unit of a slip-controlled, hydraulic power vehicle braking system including a primary piston, which protrudes from the hydraulic block and at which a pin-shaped signal generator holder for a permanent magnet is situated. The primary piston and the signal generator holder are enclosed with a tubular housing the shape of a cylindrical bowl, at which abut two converging, tangential walls.

Abstract: For rotary protection of an external force piston of a power brake pressure generator of a hydraulic vehicle power braking system, axially parallel rotary protection grooves are provided at a circumference of an external force cylinder bore in a hydraulic block of a hydraulic unit of the vehicle power braking system, and tabs of the external force piston protrude into the rotary protection grooves.

Abstract: A pump assembly for generating pressure in a brake circuit of a controllable power brake system of a motor vehicle. The pump assembly has, as a pressure generator, a piston-cylinder unit in which a piston is actuated with the aid of a piston drive. The piston drive converts a rotational movement, with which a nut of this piston drive is driven, into a translatory movement of a spindle, which is in turn connected to the piston in a rotationally fixed manner. The piston is a steel component in which a plastic deformation at a piston head forms a device for connecting the spindle to the piston in a rotationally fixed manner.

Abstract: A stroke of a piston of a pedal travel simulator is limited via a spring ring that is inserted into a circumferential groove in a cylinder of the pedal travel simulator. The spring ring relieves the load on a cover of the pedal travel simulator that closes the cylinder of the pedal travel simulator.

Abstract: A non-return valve having a valve opening spring is positioned between an unpressurized brake fluid reservoir and a brake master cylinder of a hydraulic vehicle power brake system having an externally-powered brake pressure generator. The non-return valve allows for a flow-through in the direction of the brake master cylinder and blocking against a return flow from the brake master cylinder into the brake fluid reservoir starting at a counterpressure in the brake master cylinder specified by the valve opening spring.

Abstract: A pivot bearing of a ball screw of a power brake pressure generator for a hydraulic vehicle braking system is fastened at a hydraulic block with the aid of a sleeve that has an internal circumferential edge, which engages from above with the pivot bearing on a front face facing away from the hydraulic block. The sleeve has a flange that is caulked in an annular step in the hydraulic block.

Abstract: A power piston in a power cylinder borehole of a hydraulic block of a hydraulic power unit of a hydraulic power vehicle braking system is only guided radially in an axially delimited guide section. The power cylinder borehole is configured with a larger diameter axially outside the guide section. A brake fluid channel extends through the guide section up to an opening of a brake fluid line.

Abstract: A cuboidal hydraulic block of a hydraulic unit of a hydraulic power vehicle braking system. The cuboidal hydraulic block is for fastening optionally with one fastening side or an opposite fastening side to a splashboard of a motor vehicle, so that the hydraulic unit may be housed optionally with an electric motor on a right side or a left side of the hydraulic block in an engine compartment of the motor vehicle.

Abstract: Displacement of a piston of a power brake pressure producer of a hydraulic assembly of a hydraulic vehicle brake system by an electric motor, via a cycloidal gear and a sliding screw gear having a trapezoidal thread.

Abstract: A pedal travel simulator for a hydraulic powered vehicle braking system. In order to realize a “jump-in,” a first piston spring is provided that, after a first displacement path, loads a simulator piston of the pedal travel simulator with a spring force that is higher by a multiple than that of a second piston spring that loads the simulator piston during the first displacement path.

Abstract: A connection of a piston-cylinder unit of an power brake pressure generator of an electrohydraulic power vehicle braking system to an unpressurized brake fluid reservoir with the aid of a pressure limiting valve and a controllable valve. The pressure limiting valve prevents pressure spikes in the vehicle braking system if inlet valves of hydraulic wheel brakes of the vehicle braking system are closed during a pressure buildup with the aid of the power brake pressure generator. Brake fluid may be drawn in or discharged from the brake fluid reservoir via the controllable valve during a slip control.

Abstract: A semicircular rotation prevention part for preventing rotation of a piston of a hydraulic unit of an externally-powered hydraulic vehicle brake system. The rotation prevention part is positioned in a congruent widened section at a mouth of a cylinder bore of a hydraulic block of the hydraulic unit and includes axially parallel rotation prevention grooves on its inner circumference, with which shoulders projecting outwards from the piston engage.

Abstract: In order to prevent rotation of a piston of a hydraulic unit of a hydraulic vehicle braking system, a sleeve is provided having axially parallel cylindrical pins constituting rotation prevention elements on its inner circumference, the rear ends of which elements are pressed into axially parallel holes in an inwardly projecting flange of the sleeve, and the front ends of which are inserted into axially parallel blind holes in a diameter step in a mouth of the cylindrical hole in a hydraulic block of the hydraulic unit. A method for assembling the hydraulic unit thus configured is also described.