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:
Mar. 27, 2018
Filed:
Nov. 27, 2014
Thyssenkrupp Presta Teccenter Ag, Eschen, LI;
Martin Lehmann, Mittelndorf, DE;
Bernd Mann, Zschopau, DE;
Michael Kunz, Chemnitz, DE;
Uwe Dietel, Lichtentanne, DE;
Jürgen Meusel, Dittmannsdorf, DE;
Manfred Muster, Ludesch, AT;
Markus Niederlechner, Schaanwald, LI;
Marko Curlic, Nendeln, LI;
THYSSENKRUPP PRESTA TECCENTER AG, Eschen, LI;
Abstract
An adjustable camshaft for a valve drive of an internal combustion engine may include an inner shaft extending through an outer shaft with a cam element disposed on the outer shaft. The cam element may be connected rotationally conjointly to the inner shaft. The cam element may have a shaft passage with an internal bearing surface, which, together with a bearing surface on an outer side of the outer shaft, forms a plain bearing arrangement for the rotatable arrangement of the cam element on the outer shaft. The bearing surface on the outer side of the outer shaft and/or the internal bearing surface of the shaft passage of the cam element may include one or more sections with a spherical shape.