Patent ID: 11953086
Assignee: VOLVO TRUCK CORPORATION
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 18:
19. A lubricating device for controlling lubrication in a stepped transmission comprising a splitter section with an input shaft and a main gear section with an output shaft and a countershaft;
the splitter section comprising:
a first splitter gear set connectable to the input shaft by a first gear shift mechanism;
a second splitter gear set connectable to the input shaft by the first gear shift mechanism and connectable to the output shaft by a second gear shift mechanism; and

wherein:
a lubrication arrangement for the second splitter gear set is controlled by current positions of the first and the second gear shift mechanisms; and
the lubrication arrangement is controlled to at least reduce lubrication when the first and the second gear shift mechanisms are simultaneously connected to the second splitter gear set;

wherein the lubrication arrangement comprises a first and a second supply component for lubricant,
wherein the first and the second supply components comprise a first and a second sliding closing device controllable by the first or the second gear shift mechanism; and
wherein the lubrication arrangement is at least reduced when the second splitter gear set is simultaneously disconnected from the input shaft by the first gear shift mechanism and disconnected from the output shaft by the second gear shift mechanism.