The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 10, 2015
Filed:
Oct. 24, 2012
Hans Christian Petersen, Nordborg, DK;
Ove Thorboel Hansen, Nordborg, DK;
Lars Martensen, Soenderborg, DK;
Palle Olsen, Nordborg, DK;
Erik Haugaard, Graasten, DK;
Hans Christian Petersen, Nordborg, DK;
Ove Thorboel Hansen, Nordborg, DK;
Lars Martensen, Soenderborg, DK;
Palle Olsen, Nordborg, DK;
Erik Haugaard, Graasten, DK;
Danfoss A/S, Nordborg, DK;
Abstract
The invention concerns a vane cell machine having a stator and a rotor that is made of a first material, the rotor having guides comprising radially displaceable vanes that rest on an inside of the stator and border work chambers at each axial end of the rotor together with the rotor, the stator and individual stationary side walls, the vanes having, at least at some contact faces with the rotor and the stator, a second material that interacts unfrictionally with the first material. It is endeavoured to keep the wear small. For this purpose, in a radially inner area, the side wall comprises a surface of a third material interacting unfrictionally with the first material and, in a radially outer area a surface made of the first material.