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. 08, 2005
Filed:
Nov. 18, 2002
Michael Zottmann, Niederwerrn, DE;
Jürgen Kleifges, Schweinfurt, DE;
Bernhard Schierling, Kürnach, DE;
Alexander Manger, Grettstadt, DE;
Michael Zottmann, Niederwerrn, DE;
Jürgen Kleifges, Schweinfurt, DE;
Bernhard Schierling, Kürnach, DE;
Alexander Manger, Grettstadt, DE;
ZF Sachs AG, Schweinfurt, DE;
Abstract
A torsional vibration damper, especially a dual-mass flywheel, has a primary side and a secondary side, which is free to rotate around an axis of rotation relative to the primary side. Starting from a rotation in a direction of rotation around a forward base angle (γ), a forward base spring arrangement exerts a forward base restoring force on the secondary side. Starting from rotation around a forward auxiliary angle (δ), which is greater than the forward base angle (γ), a forward auxiliary spring arrangement exerts an additional forward auxiliary restoring force. Upon rotation around a forward limit angle (ε), both spring arrangements come to a stop together.