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:
Oct. 21, 2025
Filed:
Nov. 23, 2022
Hasse & Wrede Gmbh, Berlin, DE;
Michael Steidl, Berlin, DE;
Michael Granzin, Hoppegarten, DE;
Abstract
A crankshaft arrangement for a combustion engine includes a crankshaft and a torsional vibration damper having a primary mass and an inertia ring. The primary mass is fixedly connected to the crankshaft, and the inertia ring and the primary mass are coupled via a viscous fluid. The torsional vibration damper is attached to an output end of the crankshaft. The primary mass is coupled to a secondary coupling via an elastic coupling device. The torsional vibration damper is coupled to the secondary coupling via a feedback device. The secondary coupling is formed as a dual-mass flywheel with a primary flywheel, a secondary flywheel and the elastic coupling device. A method for damping torsional vibrations of a crankshaft of a crankshaft arrangement is provided.