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:
Nov. 20, 2012
Filed:
Jul. 18, 2008
Tobias Mederer, Nuremberg, DE;
Tobias Mederer, Nuremberg, DE;
Schaeffler Technologies AG & Co. KG, Herzogenaurach, DE;
Abstract
A mass balancing device () for a reciprocating piston internal combustion engine is provided, having a first balancing shaft () and a second balancing shaft () disposed in the first balancing shaft coaxially thereto. The first balancing shaft () has at least one bearing point () for a first rolling bearing () and the second balancing shaft () has at least one bearing point () for a second rolling bearing (). The rolling bearings radially support the balancing shafts in the reciprocating piston internal combustion engine. At least one of the bearing locations is designed as a hollow cylinder having an outer shell surface serving as the bearing seat for the first rolling bearing and an inner shell surface serving as the bearing seat for the second rolling bearing, such that the first rolling bearing and the second rolling bearing overlap one another axially.