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:
Jun. 01, 2010
Filed:
Dec. 08, 2006
Joergen Pedersen, Nordborg, DK;
Hans Christian Petersen, Nordborg, DK;
Claus Johansen, Soenderborg, DK;
Joergen Pedersen, Nordborg, DK;
Hans Christian Petersen, Nordborg, DK;
Claus Johansen, Soenderborg, DK;
Sauer-Danfoss Aps, Nordborg, DK;
Abstract
A hydraulic machine has a gear wheel () with outwardly extending teeth and a gear ring () with inwardly extending teeth formed by rollers each of which is supported in a pocket () in the gear ring, and pressurized spaces are formed between the gear wheel and the inwardly extending teeth. To keep the wear of the machine small each pocket () has at least two different radii (R, R, Rn) whereby a radius (R, Rn) at a smaller displacement from the edge () of the pocket is larger than a radius (R) at a larger displacement from the same edge () of the pocket ().