Patent · US Active

Multipiston pump

US7766626B2 · kind B2 · utility

4Cited by

6References

12Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Carsten Pabst · Stuttgart, DE
Marc Micke · Brackenheim, DE
Matthias Hurst · Immenstadt im Allgäu, DE
Guy-Edward Michalski · Eisenach, DE

Key dates

Filing date	Nov 18, 2004
Grant date	Aug 3, 2010
Priority date	—
Expiry date	Jul 23, 2026

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04B53/16
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.