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:
Jun. 24, 2008
Filed:
Nov. 06, 2003
Sverker Alfredsson, Vastra Frolunda, SE;
Sverker Alfredsson, Vastra Frolunda, SE;
Volvo Lastvagnar AB, Gothenburg, SE;
Abstract
Method and arrangement for providing a range gearbox with a planetary gear () for a motor vehicle that is configured to be connected to the output side of a basic gearbox. The ring gear () of the planetary gear is axially displaceable. The ring gear () can alternatively engage coupling rings (). A synchronizing ring () is intended to synchronize the rotational speed difference between the ring gear () and one or other coupling ring (). The synchronizing ring () and the coupling ring () are arranged coaxially outside the ring gear (). Bars () for engaging the coupling ring () and bars () for driving said synchronizing ring () are arranged on the radially external side of the ring gear (). The coupling ring () is arranged between the synchronizing ring () and the fork ().