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. 09, 2001
Filed:
Mar. 03, 1999
Richard Heindl, Marktoberdorf, DE;
Gunther Groger, Lengenwang, DE;
Theodor Bosl, Marktoberdorf, DE;
Robert Honzek, Oberthingau, DE;
Agco GmbH, , DE;
Abstract
A system operated by what is referred to as a clutch pedal, which adjusts the traction power of an infinitely variable, hydrostatic-mechanical transmission. The transmission contains at least one pump (,) and at least one motor (,), arranged in a hydraulic circuit. In order to reduce the traction power, pressure is leaked between the two sides of the motor (,) by reducing the pressure at the control parts (,) of two proportional valves (,) in respective lines bridging the motor (,). The control parts (,) of the proportional valves (,) are connected via a shift valve (,) to an intermediate valve (,), the closing force of which is reduced as the clutch pedal (,) is opened by means of a closing spring (,).