Abstract: To extend a power cylinder bore in a hydraulic block of a power brake system, a cylinder cover, which is in the form of a cylinder tube and is closed at one end, is fastened by means of a circumferential caulking in a fastening groove of the hydraulic block which encloses the power cylinder bore. An interference fit of a fastening flange of the cylinder cover in the fastening groove reliably seals the cylinder cover against the hydraulic block in a pressure-proof manner.

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 bore of a hydraulic block of a service brake unit of a hydraulic vehicle power brake system.

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: A space-saving bore arrangement in a hydraulic block of a brake pressure control mechanism of a slip-controlled hydraulic vehicle power brake system.

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 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 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: A drilling of a hydraulic block of a hydraulic unit of a pressure-regulating module of a power brake system and, in particular, a set-up of receptacles for solenoid valves in a valve side of the hydraulic block.

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 hydraulic unit for an electronically slip-controllable power brake system of a motor vehicle. A cuboidal housing block is equipped with components for generating a braking pressure and for open- or closed-loop control thereof. On a motor side of the housing block, a motor is fastened to drive a braking pressure generator, while on a reservoir side, a reservoir is provided to supply the vehicle brake system with a pressure medium. The reservoir has at least one protruding fastening peg, which projects into a recess open to the outside on the housing block. Using a retaining pin inserted into a transverse bore of the housing block and passing through this recess, the reservoir is anchored to the housing block. The transverse bore, open on the motor side of the housing block, is in a flat portion in which a pin head of the retaining pin lies without the pin head protruding axially beyond a motor side of the housing 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 drilling of a hydraulic unit of a service brake assembly of a vehicle hydraulic-power brake system.

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 hydraulic block of a slip regulation system of a hydraulic external force vehicle brake system that has a master brake cylinder bore and forms a master brake cylinder. In order to prevent a hard impact of a master brake cylinder piston on an end stop when the master brake cylinder is released, in particular when there is a sudden release, for example when the driver's foot slips off the brake pedal, the present invention provides a hydraulic return flow damper that is integrated in the master brake cylinder piston.

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.

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: 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 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.