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:
Dec. 27, 2016
Filed:
Jan. 29, 2015
Raphael Himmelsbach, Friedrichshafen, DE;
Michael Wechs, Lindau, DE;
Karl Grad, Ruderting, DE;
Stefan Beck, Eriskirch, DE;
Martin Rattay, Ravensburg, DE;
Raphael Himmelsbach, Friedrichshafen, DE;
Michael Wechs, Lindau, DE;
Karl Grad, Ruderting, DE;
Stefan Beck, Eriskirch, DE;
Martin Rattay, Ravensburg, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
A gear unit for a compound transmission has a planetary stage that couples an input and an output shaft for different transmission ratios. The planetary stage includes a sun gear, a ring gear and planet gears rotatably supported at a planet carrier. The planet gears have a region with two different toothings arranged axially offset with respect to an axis of rotation of the planetary stage. A meshing engagement with a first sun gear and/or a first ring gear is produced via the first toothing. The planet gears mesh at the second toothing with a second sun gear and/or a second ring gear, and one component of the planetary stage is connected to the input shaft to be fixed with respect to rotation and one component is fixed at a housing, while the rest of the components can be coupled with the output shaft, respectively.