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:
Oct. 20, 2009
Filed:
Apr. 10, 2003
Franz Bitzer, Friedrichshafen, DE;
Martin Vornehm, Bühl, DE;
Christian Lauinger, Baden-Baden, DE;
Michael Reuschel, Ottersweier, DE;
Christian Späth, Baden-Baden, DE;
Christoph Angele, München, DE;
Thomas Pfund, Leiberstung, DE;
André Linnenbrügger, Bühl, DE;
Franz Bitzer, Friedrichshafen, DE;
Martin Vornehm, Bühl, DE;
Christian Lauinger, Baden-Baden, DE;
Michael Reuschel, Ottersweier, DE;
Christian Späth, Baden-Baden, DE;
Christoph Angele, München, DE;
Thomas Pfund, Leiberstung, DE;
André Linnenbrügger, Bühl, DE;
Abstract
The input rotational speed of a belt-driven conical-pulley transmission is determined by measuring a wheel rotational speed and the transmission ratio and by calculating the input rotational speed therefrom. In order to ascertain the slipping of a CVT transmission, the rate of change in the transmission ratio is drawn upon, or an acoustic parameter of the transmission is used. In the fluid control system, a valve is used whose opening cross-section is controlled according to the one differential pressure. In order to oil the conical discs, injection holes of an injection tube are used that passes through a slot provided in a slide rail resting against a strand of a flexible torque transmitting member of a conical disc flexible drive.