Abstract: The invention relates to a housing block in an anti-lock hydraulic vehicle brake system, including a plurality of bores, conduits or holes intended for the function of the anti-lock arrangement. The invention provides that of these function-specific bores, conduits or holes, at least one bore (8), one conduit, or one hole is provided with an engagement face (14) for the positive engagement of a clamping means (16) of a machine tool. As a result, the production of separate clamping bores can be dispensed with.

Abstract: The invention relates to a hydraulic unit for an anti-lock vehicle brake system, having a housing block with a first row of valve receiving chambers for receiving inlet valves, and a second row of valve receiving chambers for receiving outlet valves a pump receiving chamber, whose longitudinal axis extends at least approximately perpendicular to longitudinal axes of the valve receiving chambers and between the longitudinal axes of the valve receiving chambers of the first row and the longitudinal axes of the valve receiving chambers of the second row; low-pressure reservoir receiving chambers, which are disposed on a side, remote from the pump receiving chamber, of the valve receiving chambers of the second row, and whose longitudinal axis extends at least approximately perpendicular to the longitudinal axes of the valve receiving chambers and to the longitudinal axis of the pump receiving chamber; and a separate, direct connection between each valve receiving chamber of an outlet valve and an associated low-

Abstract: A device for damping pressure pulsations, in electronically regulatable vehicle brake systems for damping the pressure pulsations that are caused by pressure generators in a hydraulic circuit connected to it. The device has a housing which encloses a damping chamber and also has at least one hydraulic connection opening into the damping chamber, and a throttle device. The housing and throttle device are embodied as a compact damping unit that can be preassembled, is economical, and can be anchored in only a few work steps to the hydraulic block of an electronically regulatable vehicle brake system.

Abstract: The invention relates to a hydraulic unit for an anti-lock vehicle brake system, having a housing block with a first row of valve receiving chambers for receiving inlet valves, and a second row of valve receiving chambers for receiving outlet valves a pump receiving chamber, whose longitudinal axis extends at least approximately perpendicular to longitudinal axes of the valve receiving chambers and between the longitudinal axes of the valve receiving chambers of the first row and the longitudinal axes of the valve receiving chambers of the second row; low-pressure reservoir receiving chambers, which are disposed on a side, remote from the pump receiving chamber, of the valve receiving chambers of the second row, and whose longitudinal axis extends at least approximately perpendicular to the longitudinal axes of the valve receiving chambers and to the longitudinal axis of the pump receiving chamber; and a separate, direct connection between each valve receiving chamber of an outlet valve and an associated low-

Abstract: The invention relates to a pump unit (10) for a hydraulic vehicle brake system with traction control. The pump unit (10) has an electric motor (12) and a radial piston pump (14), which can be driven by the electric motor (12). The invention proposes embodying a rotor shaft (18) of the pump unit (10) with a hollow shaft (20) and with two standardized, hardened cylindrical pins (22, 24) that are press-fitted into the ends of the hollow shaft (20). The invention has the advantage that the rotor shaft (18) can be produced simply, economically, and without metal-cutting machining. Because of its embodiment as a hollow shaft (20), the rotor shaft (18) has high bending and torsional strength. Because of the press-fitted pins (22, 24), the rotor shaft (18) has a small diameter at the bearing points, which makes a small bearing diameter and thus a small installation space for the pump unit (10) possible.

Abstract: A hydraulic unit (11) is elastically supported by means of elastomer elements (17, 18), through which bolts (15, 16) pass, on two legs (13, 14) of a mounting bracket (12) that extend perpendicular to one another. The leg (14) of the mounting bracket (12) has recesses, open counter to the mounting direction (45) of the unit (11), for receiving the elastomer element (18). With clamping means (34, 35, 36) disposed on the bolt (16), the elastomer element (18) is axially shortened and pressed against both the recess and side faces, located on either side of the recess, of the leg (14) of the mounting bracket (12). With the shortened elastomer element (18), a positive and nonpositive engagement with the leg (14) of the mounting bracket (12) is achieved.

Abstract: A piston pump for a hydraulic brake system for a vehicle with a slip control system. For economical production, the piston pump includes a piston as a composites part with a core of steel that is surrounded by a lubricant jacket of plastic. By way of example, the lubricant jacket is applied to the core by spray-coating, or is pressed onto the core or slipped onto the core. The lubricant jacket economizes by dispensing with expensive post-machining of the piston surface by grinding, for instance, and improves the sliding properties of the piston.

Abstract: A piston pump which is intended in particular for a vehicle hydraulic, slip-controlled brake system. To reduce idle volume in the piston pump, a positive-displacement body is mounted on the piston by means of a retaining part. The displacement body protrudes into an interior of a valve closing spring, embodied as a helical spring, of an inlet valve integrated with the piston. The embodiment of the valve closing spring and of a piston restoring spring with a rectangular coil cross section also contributes to reducing the idle volume of the piston pump. Reducing the idle volume increases the efficiency of the piston pump.