Gear positive displacement machine with gaps between bearing members and housing

US4336006A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Kurt Grabow · Feucht, DE
• Willy Mahl · Ditzingen, DE
• Karl-Heinz Muller · Wissen, DE
• Heinrich Kochendorfer · Weingarten, DE
• Dieter Bertsch · Bad Liebenzell, DE
• Siegfried Mayer · Leinfelden, DE
• Jorg Anhenn · Leinfelden, DE
• Wilhelm Dworak · Stuttgart, DE

Key dates

• Filing date: Oct 9, 1979
• Grant date: Jun 22, 1982
• Expiry date: Oct 9, 1999

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16C2360/42
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A gear positive displacement machine has a housing, two gear members, and two bearing members supporting the latter. A gap is formed between an inner wall of the housing and a respective one of the bearing member, the gap increasing in two opposite axial directions. It may start from a central transverse plane of the bearing member. The gap may be formed by a convex peripheral surface of the bearing member or by a convex inner wall of the housing.