Piston pump

US7278835B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Edgar Schmitt · Lambach, DE
• Norbert Alaze · Markgröningen, DE
• Ernst-Dieter Schaefer · Neckartenzlingen, DE
• Marcus Egle · Erbach, DE
• Jochen Braun · Reutlingen, DE
• Ursula Eckstein · Schwieberdingen, DE
• Peter Zimmermann · Munich, DE
• Christian Debusmann · Kornwestheim, DE
• Manfred Dreyer · Kornwestheim, DE

Key dates

• Filing date: Mar 13, 2002
• Grant date: Oct 9, 2007
• Expiry date: Oct 24, 2022

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F04B11/0091
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A piston pump for brake systems employs a pulsation-smoothing device that functions especially well in the region of the outlet valve. As a result, substantially less noise occurs, and the durability of the piston pump is substantially better. The piston pump is used essentially in traction-controlled motor vehicle brake systems.