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:
Sep. 11, 2012
Filed:
Aug. 15, 2008
Jurgen Legner, Friedrichshafen, DE;
Roland Fischer, Oberteuringen, DE;
Michael Siber, Friedrichshafen, DE;
Jurgen Legner, Friedrichshafen, DE;
Roland Fischer, Oberteuringen, DE;
Michael Siber, Friedrichshafen, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
A hydrostatic-mechanical power split transmission with at least two continuous operating ranges for use in agricultural and construction machines. The transmission has a summation planetary gear and a clutch for forward drive () and a clutch for reverse drive () that are arranged upstream of the summation gear. The transmission has a first sun gear () and a second sun gear () and a ring gear such that the ring gear () can be connected to an output drive shaft (), via a clutch for the first driving range (), and the second sun gear () can be connected to the output drive gear (), via a clutch for the second operating range ().