SYSTEM FOR THE OIL COOLING OF AN ELECTRICAL MACHINE

The invention relates to a system for the oil cooling of an electrical machine (ME), comprising: a cooling circuit (OC) for bringing a cooling liquid into contact with the active parts of the electrical machine (ME); a tank (OT) for collecting the cooling liquid after it has cooled the active parts; a pump (OP) for re-injecting the cooling liquid upstream of the active parts; and a heat exchanger(HE). The cooling circuit (OC) comprises a branch pipe (BD) which diverts part of the cooling liquid upstream of the active parts such as to flow into the tank (OT) without passing through the activeparts, the liquid volume of the tank (OT) being maintained constant. The cooling system comprises means (MA) for opening and closing the branch pipe (BD) according to a threshold temperature. 本发明涉及一种用于电动机器(ME)的油冷却的系统，该系统包括：冷却回路(OC)，该冷却回路用于使冷却液与该电动机器(ME)的主动部件接触；箱(OT)，该箱用于收集已经冷却了主动部件的冷却液；泵(OP)，该泵被用于将冷却液重新注入主动部件的上游；以及热交换器(HE)。该冷却回路(OC)包括旁路支路(BD)，该旁路支路使在这些主动部件上游的一部分冷却液偏离以便流入该箱(OT)中而不会经过这些主动部件，该箱(OT)的液体容量保持恒定。该冷却系统包括用于根据温度阈值打开和