Cooling system for a transmission device, in particular a reduction gear for driving a sprocket of a tracked or wheeled vehicle.

摘要

P The invention relates to a cooling system of a transmission device, in particular a reducer (2) with drive gears of a sprocket (1) of a tracked or wheeled vehicle. The reduction gear (3) comprises an internal lubrication circuit (10) with forced circulation of a heat transfer fluid and at least one additional heat exchange surface (15; 22) with the outside air and means (16, 17, 24, 25) for channeling the heat transfer fluid to said heat exchange surface which is for example integrated into the hub (2) of the gypsy (1) and / or constituted by an external radiator (20) fixed to the reduction gear (2) and possibly fitted with fins (28). /P