Piston pump for a vehicle brake system having radial play between a closure element and a bush

US6340295B1 · 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
• Walter Kremsreiter · Dewitt Court, 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

Key dates

• Filing date: Sep 13, 1999
• Grant date: Jan 22, 2002
• Expiry date: Sep 13, 2019

Classification

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

Abstract

A piston pump intended especially for use in a slip-controlled hydraulic vehicle brake system. The piston pump is inserted into a cylinder bore, the piston pump has a piston, a bush, and a closure element that tightly closes the cylinder bore. The closure element is joined radially movably to the bush, for instance via caulking. This joint has the advantage that the piston pump can be assembled into a compact, easily manipulated, and sturdy component unit, and that the closure element and the bush are aligned with one another on being inserted into the cylinder bore.