Hydraulic transformer

US6887045B2 · kind B2 · utility

Assignee

• Bosch Rexroth Corporation · DE

Inventor

• Rudolf Schaeffer · Marktheidenfeld, DE

Key dates

• Filing date: Jun 28, 2001
• Grant date: May 3, 2005
• Expiry date: Jun 28, 2021

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F04B9/10
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A hydraulic transformer wherein a multiplicity of displacers are guided in a displacement member. The stroke of the displacers is determined through the intermediary of a cam element, with pressure medium supply and discharge being controlled through the intermediary of a control member having at least three control grooves. In accordance with the invention either the displacement member or the cam element or the control member may be driven, whereas—depending on which component is driven—the cam element or the displacement member is mounted so as to be freely adjustable, and the remaining third component is accommodated integral with the housing.