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. 25, 2014
Filed:
Feb. 23, 2011
Applicants:
Juergen Meusel, Dittmannsdorf, DE;
Ulf Mueller, Chemnitz, DE;
Inventors:
Juergen Meusel, Dittmannsdorf, DE;
Ulf Mueller, Chemnitz, DE;
Assignee:
Thyssenkrupp Presta Teccenter AG, Eschen, LI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 46/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
A cam shaft has a tubular part extending longitudinally along an axis and a helical body fixed in the tubular part and having a first helical passage extending between an inlet end where a first pressure is present and an outlet end where a second pressure is present. This helical body forms an oil separator between the inlet and outlet ends. A flow-blocking element at the inlet end moves as a function of a pressure differential between the first and second pressures to open and close the first helical passage.