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:
Mar. 14, 2023
Filed:
Nov. 16, 2018
Zf Friedrichshafen Ag, Friedrichshafen, DE;
Matthias Reisch, Ravensburg, DE;
Christoph Erkens, Eschweiler, DE;
Eckhardt Lübke, Friedrichshafen, DE;
Martin Rattay, Ravensburg, DE;
Marc Seeberger, Oberteuringen, DE;
ZF FRIEDRICHSHAFEN AG, Friedrichshafen, DE;
Abstract
A gear transmission includes a first helical-cut gearwheel () and a second helical-cut gearwheel () engaged for transmitting torques in different directions. The first gearwheel () and the second gearwheel () each include corresponding ring-shaped thrust collars (), and corresponding thrust collars () each form a race () having an overlap region. A first race () and a second race () form an overlap region for traction torques, and a third race () and a fourth race () form an overlap region for overrun torques. Each overlap region includes a contact surface or a contact point (), and each contact point () is situated on a contact circle diameter (). The contact surfaces or contact points () for traction torques and the contact surfaces or contact points () for overrun torques are radially offset.