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:
Jun. 28, 2011
Filed:
Dec. 17, 2006
Hartmut Faust, Bühl, DE;
Hartmut Faust, Bühl, DE;
Abstract
An input-side drive arrangement for a belt-driven conical-pulley transmission includes an input shaft that is rigidly connected to an axially fixed disk, and an axially movable disk that can be shifted axially on the shaft and is rotationally fixed to the shaft. A torque-sensing device has a first shaped surface that is rigidly connected to the shaft and a second shaped surface that is rigidly connected to a sensing piston that surrounds the shaft and is rotatable and axially movable relative to the shaft. The sensing piston engages a rotationally drivable input wheel and can be subjected to hydraulic pressure from the side facing the movable disk. The rotationally fixed and axially movable engagement between the sensing piston and the input wheel is such that the engagement is disconnected when there is torque acting from the movable disk and the sensing piston is not under hydraulic pressure.