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:
Sep. 19, 2023
Filed:
Nov. 13, 2020
Applicant:
Hasse & Wrede Gmbh, Berlin, DE;
Inventors:
Michael Steidl, Berlin, DE;
Norbert Reinsperger, Hoppegarten, DE;
Assignee:
Hasse & Wrede GmbH, Berlin, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16F 15/173 (2006.01);
U.S. Cl.
CPC ...
F16F 15/173 (2013.01); F16F 2228/063 (2013.01);
Abstract
A crankshaft arrangement for an internal combustion engine includes a crankshaft, a torsional vibration damper having a primary mass and a flywheel, wherein the primary mass is connected fixedly to the crankshaft, and the flywheel 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 elastomer coupling ring. The torsional vibration damper is coupled to the secondary coupling via a feedback device. The feedback device has a negative stiffness.