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. 30, 2010
Filed:
Nov. 29, 2005
Jürgen Pescheck, Immenstaad, DE;
Stefan Unseld, Weissensberg, DE;
Konrad Thoma, Friedrichshafen, DE;
Jürgen Pescheck, Immenstaad, DE;
Stefan Unseld, Weissensberg, DE;
Konrad Thoma, Friedrichshafen, DE;
2F Friedrichshafen AG, Friedrichshafen, DE;
Abstract
The invention concerns an adjustable hysteresis driver, with a rotor component () on the input side that can be driven and/or a stator component (), with an armature component () on the output side in fixed connection with a shaft (), with a hysteresis component () connected to the armature component (), the stator component () comprising an electromagnet () or permanent magnet () by means of which a magnetic flux can be induced in the rotor component () and/or the stator component (″), and in which the torque that can be transmitted can be adjusted by electromagnetic or electro-mechanical means. The purpose of the invention is to propose a hysteresis driver with improved adjustability. To achieve this it is provided that the hysteresis driver consists of a hysteresis clutch or a hysteresis brake and has active operating means for implementing a 'fail-safe' function, which, if the current supply to the electromagnet () fails, ensures that a torque is transferred either by a mechanical coupling or by the action of permanent magnet force between the rotor component () of a hysteresis clutch or the stator component (″) of a hysteresis brake and the said armature component ().