Lubrication system for transmission unit with reservoir and scraper trough

Abstract

A motor vehicle transmission unit comprising at least one differential with a differential mechanism and an input wheel ring (3) having teeth (31) and providing a lubricating oil lifting function, the ring comprising a first rim flange (81) oriented towards the differential mechanism and a second rim flange oriented in the opposite direction, the transmission unit comprising a reservoir trough (9) arranged at least partially above the axis (A3) and configured to receive oil lifted by the ring, the reservoir trough (9) comprising one or more flow openings, the reservoir trough (9) comprising a scraper (2) located near the first rim flange of the ring. Figure 4