Abstract: The invention is directed to a piston pump for a hydraulic vehicle brake system. For simple and inexpensive manufacturability, the piston pump embodies an outlet conduit as a groove in a sleeve bottom and a sealing part. As a result, the sleeve and the sealing part can be manufactured in a non-cutting manner by means of forming. Another advantage of letting the outflow conduit into the sleeve bottom is that the outlet conduit is disposed a small distance in the axial direction from a valve seat of an outlet valve, which counteracts noise production.
Type:
Grant
Filed:
June 30, 1999
Date of Patent:
January 1, 2002
Assignee:
Robert Bosch GmbH
Inventors:
Manfred Hauser, Norbert Alaze, Dieter Merklein, Wolfgang Schuller, Julius Bayrhof, Siegfried Fritsch, Walter Kremsreiter, Franz Mayer, Joachim Evertz, Joerg Zielke, Ralf Zitzelsberger, Andreas Weh, Bernd Allenzon, Michael Hellebrandt, Tobias Fluck