Piston pump

US6866489B2 · kind B2 · utility

Assignee

• Continental Teves AG & Co. OHG · DE

Inventors

• Axel Hinz · Neu-Anspach, DE
• Hans-Dieter Reinartz · Frankfurt am Main, DE
• Peter Volz · Darmstadt, DE
• Günther Vogel · Dreieich, DE
• Uwe Greiff · Bad Homburg vor der Höhe, DE
• Matthias Viering · Darmstadt, DE

Key dates

• Filing date: Mar 16, 2001
• Grant date: Mar 15, 2005
• Expiry date: Apr 3, 2021

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/7559
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

The present invention related to a piston pump, in particular for controllable brake systems such as ABS or ESP, wherein a working chamber of the pump in front of a piston is delimited by a pressure valve, and a resetting spring with its one end is supported on a valve seat carrier of the pressure valve and with its other end resets said piston into its bottom dead center position. An object is to render the assembly of the mass-produced pumps as inexpensive and simple as possible. To achieve this object, the present invention discloses that the resetting spring be adapted to be attached directly or indirectly to the valve seat carrier in addition.