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:
Apr. 09, 2024
Filed:
Jan. 22, 2018
Volvo Truck Corporation, Gothenburg, SE;
Anders Hedman, Marstrand, SE;
Volvo Truck Corporation, Gothenburg, SE;
Abstract
The invention relates to a lubricating device for controlling lubrication in a stepped transmission comprising a splitter section () with an input shaft (I) and a main gear section () with an output shaft (O) and a countershaft (C); where the splitter section () comprises a first splitter gear set () connectable to the input shaft (I) by a first gear shift mechanism (); and a second splitter gear set () connectable to the input shaft (I) by the first gear shift mechanism (); and connectable to the output shaft (O) by a second gear shift mechanism (). A lubrication arrangement for the second splitter gear set () is arranged to be controlled by the current positions of the first and the second gear shift mechanisms (); wherein the lubrication arrangement is controlled to at least reduce lubrication when the first and the second gear shift mechanisms () are simultaneously connected to or disconnected from the second splitter gear set ().