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. 05, 2013
Filed:
Jul. 13, 2010
Peter Solfrank, Frensdorf, DE;
Peter Solfrank, Frensdorf, DE;
Schaeffler Technologies AG & Co. KG, Herzogenaurach, DE;
Abstract
An unbalanced shaft (), particularly for compensating mass forces and/or mass moments of inertia of an internal combustion engine () is provided. The shaft includes a shaft section () and a bearing journal () axially adjacent to the shaft section, the bearing journal includes a fully cylindrical outer peripheral surface () serving as an inner raceway for the rolling elements () of a rolling bearing () and the bearing journal has a multi-piece configuration, so that both the shaft section and the bearing journal possess a mass center of gravity that, for producing the shaft unbalance, extends eccentric to the axis of rotation () of the unbalanced shaft. For supplying lubricant to the inner raceway and the rolling elements, an oil channel () extends radially outwards through the bearing journal and opens, relative to the mass center of gravity of the bearing journal, on the other side, situated beyond the axis of rotation, on the outer peripheral surface.