Piston pump including an easily produced flow conduit

US6334762B1 · kind B1 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Manfred Hauser · Schwieberdingen, DE
• Norbert Alaze · Markgröningen, DE
• Dieter Merklein · Ludwigsburg, DE
• Wolfgang Schuller · Cleebronn, DE
• Julius Bayrhof · Stavenhagen, DE
• Siegfried Fritsch · Sonthofen, DE
• Walter Kremsreiter · Dewitt Court, DE
• Franz Mayer · Birkenfeld, DE
• Joachim Evertz · Sonthofen, DE
• Joerg Zielke · Immenstadt im Allgäu, DE
• Ralf Zitzelsberger · Marktoberdorf, DE
• Andreas Weh · Kempten (Allgäu), DE
• Bernd Allenzon · Wiggensbach, DE
• Michael Hellebrandt · Bürgberg, DE
• Tobias Fluck · Immenstadt im Allgäu, DE

Key dates

• Filing date: Jun 30, 1999
• Grant date: Jan 1, 2002
• Expiry date: Jun 30, 2019

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F04B53/168
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

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.