Hydraulic toothed wheel machine

US8979518B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Marc Laetzel · Stuttgart, DE
• Michael Wilhelm · Sycamore, US
• Dietmar Schwuchow · Stuttgart, DE
• Guido Bredenfeld · Erbach, DE
• Stefan Cerny · Bietigheim-Bissingen, DE
• Sebastian Tetzlaff · Reinsdorf, DE
• Klaus Griese · Kupferzell, DE

Key dates

• Filing date: Feb 25, 2010
• Grant date: Mar 17, 2015
• Expiry date: May 29, 2031

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F04C2240/50
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A toothed wheel machine including a housing for receiving two meshing and especially helical-toothed wheels. The toothed wheels are axially mounted in a sliding manner by axial surfaces between bearing bodies received in the housing, and radially by a bearing shaft received in the bearing bodies. During the operation of the toothed wheel machine, an axial component of a force resulting from the hydraulic and mechanical forces generated during operation acts on each toothed wheel in the same axial direction. A counter-force against the respective axial force component is applied to the toothed wheels and/or bearing shafts, each counter-force applying the same amount of pressure as the respective axial force component, or less than same.