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, 2012
Filed:
Apr. 16, 2007
Alois Böck, Hutthurm, DE;
Detlef Baasch, Friedrichshafen, DE;
Gerhard Gumpoltsberger, Friedrichshafen, DE;
Thomas Rosemeier, Meckenbeuren, DE;
Alois Böck, Hutthurm, DE;
Detlef Baasch, Friedrichshafen, DE;
Gerhard Gumpoltsberger, Friedrichshafen, DE;
Thomas Rosemeier, Meckenbeuren, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
A transmission device is proposed for distributing a drive torque to at least two output shafts (Ab, Ab), comprising a differential () that is permanently connected to the output shafts (Ab, Ab), wherein a double planetary gearset () is provided co-axially to the output (Ab) between the differential cage () of the differential () and the output (Ab) of one side, said planetary gearset comprising a first sun gear () and a second sun gear (), a first planetary range (), an intermediate planetary range (), and an internal gear (), herein the internal gear () is connected to the differential cage () and the planet carrier () of the planetary gearset () is connected to the output (Ab), wherein the first sun gear () meshes with the first planetary range () and can be coupled to the housing (G) by means of a brake () in order to shift the torque in one direction, and wherein the second sun gear () meshes with the intermediate planetary range () and can be coupled to the housing (G) by means of an additional brake () in order to shift the torque in the opposite direction.