Vane for a vane cell pump and vane cell pump

US10087930B2 · kind B2 · utility

Assignee

• Joma-Polytec GmbH · DE

Inventors

• Hans-Peter Ott · Hirrlingen, DE
• Bernd Hess · Leverkusen, DE
• Stefanie Wuhrer · Burladingen, DE
• Martin Thoma · Munich, DE
• Torsten Helle · Bingen, DE
• Friedhelm Pfitzer · Rangendingen, DE

Key dates

• Filing date: Jul 11, 2016
• Grant date: Oct 2, 2018
• Expiry date: Aug 25, 2036

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F04C2240/20
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A vane for a vane cell vacuum pump. The vane can be rotated about an axis of rotation by a rotor in a pump chamber and guided in the longitudinal direction in the rotor, with an upper side and a lower side to abut against the bottom and the ceiling of the pump chamber, with a rear side opposite a front side to limit the pressure chambers, with at least one face to slidably abut against an inside wall of the pump chamber on the casing side. The vane comprises a base body of a first plastic material and a vane end molded of a second plastic material to the base body forming the face. The base body comprises a mounting section around which the vane end is formed. The mounting section comprises at least one recess transverse to the front side and/or the rear side.