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, 2000
Filed:
Nov. 10, 1998
Martin Dettmar, Geldersheim, DE;
Mannesmann Sachs AG, Schweinfurt, DE;
Abstract
A torsional vibration damper for arrangement in a drive train of an automobile comprises three flywheel mass arrangements arranged so as to be rotatable both jointly and relative to one another about a common first axis of rotation. At least two of the three flywheel mass arrangements are torsionally elastically coupled to one another by a spring arrangement. The three flywheel mass arrangements are coupled to one another via a roller gear. The first flywheel mass arrangement has a first toothing along at least a part circumference and the third flywheel mass arrangement has a second toothing along at least a part circumference. The second flywheel mass arrangement has at least one roller carrier mounted so as to be rotatable about a second axis of rotation and a plurality of roller bodies which roll on part regions of the first toothing and on part regions of the second toothing. Each roller body is arranged at a distance from the second axis of rotation and is mounted rotatably mounted on the roller carrier for rotating about a third axis of rotation assigned to the particular roller body.