Patent ID: 9052009
Filing Date: 2015-06-09
Classification: F16H

Abstract:
1. A lubrication system for a differential of a driven axle on an automotive vehicle, comprising a sump in which is located a crown wheel driven by a pinion, the crown wheel being fast in rotation with a carrier, and a main lubricant tank, located in the sump, having an inlet port and at least one outlet port, rotation of the crown wheel causing lubricant to be transferred from the sump to the main tank via the inlet port, and the outlet port allowing the lubricant to pass from the main tank to the sump, the lubrication system comprising: an auxiliary lubricant tank located in the sump, adapted to be filled in with lubricant by rotation of the crown wheel, and at least one pipe to convey lubricant from the auxiliary tank to a lubricant needing portion of the differential, wherein the lubricant needing portion comprises at least one of an interior volume of the carrier and a bearing, wherein the at least one pipe to convey lubricant to the interior volume of the carrier is adapted to convey the lubricant from the auxiliary tank to an area above at least one of two wheel axles of the differential outside the carrier, and wherein the wheel axle comprises a thread, realized on an outer peripheral surface of the wheel axle, and adapted to convey lubricant towards the interior of the carrier during the rotation of the wheel axle.