Hydraulic pump

US5096400A · kind A · utility

Assignee

• Alfred Teves GmbH · DE

Inventors

• Ludwig Budecker · Frankfurt am Main, DE
• Anton David · Dreieich, DE
• Georg Obersteiner · Idstein, DE
• Hans-Albrecht Guse · Bad Homburg vor der Höhe, DE
• Ulrich Zutt · Niedernhausen, DE
• Bernd Schweighoefer · Schmitten, DE

Key dates

• Filing date: Aug 10, 1990
• Grant date: Mar 17, 1992
• Expiry date: Aug 10, 2010

Classification

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

Abstract

A hydraulic pump which is furnished with a bushing-type closing element (11) for the purpose of damping pulsations of pressure and of the delivery flow. The closing element (11) turns the delivery flow several times and contains a damping chamber. An optimum adjustment of the damping device is possible by varying the external diameter of the end portion (12) of the closing element (11) and by varying the reach of screw of the closing element (11).