Robert Boschgmbh

Carsten Pabst

Andreas Weh

Heinz Siegel

Hannes Bertling

Michael Hellebrandt

Marc Micke

Helmut Deringer

Dietmar Rischen

Michael Krauter

Roland Benzinger

Josef Berding

Matthias Hurst

Shawn Aaron Sullivan

Thomas Lees

Peter Eberspaecher

Johann Guggemos

Hiroaki Atsushi

Rolan D Benzinger

Norbert Schnurr

Guy-Edward Michalski

A multipiston pump including a plurality of piston pumps hydraulically combined into at least two pump units are coupled on the intake side, but supply two separate hydraulic circuits of a vehicle brake system with pressure fluid. To reduce brake pedal pulsation the piston pumps are driven in phase-offset fashion. An eccentric unit comprising two spaced-apart cams rotated counter to one another, with the individual piston pumps being located in a number of sectional planes through the pump housing corresponding to the number of cams and locate the connecting conduits for hydraulically coupling the pump units are located in a region of the pump housing defined by the sectional planes.

Multipiston pump

A damper unit in which a structural volume of the unit is reduced. The hydraulic unit includes a damper chamber formed by a stepped bore. A diameter-to-length ratio of the chamber is between 1:3 and 1:12. A closure element of the damper chamber is received with radial pressure in the bore and is retained on the discharge end by an embossed connection. The smaller-diameter portion of the damper chamber bore, when the hydraulic unit is in the position for use, is offset eccentrically upward from the larger-diameter bore portion with an at least approximately horizontally extending bore axis, so that the jackets of both bore portion merge at least approximately in alignment with one another at at least one point. The damper chamber is of slender design and intended to be disposed in a housing block of the hydraulic unit in a way that economizes on installation space and is intended to be simple to vent. The hydraulic unit is intended for use in slip-controlled motor vehicle brake systems.

Hydraulic unit for a slip-controlled motor vehicle brake system

An anti-lock device for a hydraulic automobile brake system includes a housing block for receiving an eccentric directional valves, two coaxially oriented pump pistons and first and second storage chambers. So that the housing block can be made narrower, the longitudinal axes (F, G, I, J) are distributed to the corners of a quadrangle. At the same time, the common longitudinal axis (E) of the pump pistons can be located between the longitudinal axes of the storage chambers.

Anti-lock device for a hydraulic vehicle brake system

Piston accumulator

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Stuttgart, Germany

Carsten Pabst