Internal gear fuel pump

US5156540A · kind A · utility

Assignee

• VDO Adolf Schindling AG · DE

Inventors

• Norbert Fernau · Nentershausen, DE
• Helmut Kohlhaas · Gerstungen, DE

Key dates

• Filing date: May 10, 1991
• Grant date: Oct 20, 1992
• Expiry date: May 10, 2011

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F04C2/082
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

Feed unit, in particular for the feeding of fuel, having an electric drive motor and a pump unit coupled to it, which comprises a base plate, an intermediate plate having a recess for rotating pump parts and a cover, at least the base plate and the cover consisting of a ceramic material and the end sides of the base plate and of the cover which face the intermediate plate having ground surfaces.