The present invention relates to an electrical machine (10) comprising: a stator (12) and a rotor (14) having two opposite ends (36, 38); a housing (16) having a bottom wall (48), said stator (12) and said rotor (14) being mounted within said housing (16) defining two opposite free zones (40, 42); at least two injectors (134, 136) respectively located in said free zones (40, 42) to be able to inject a coolant on said two opposite ends (36, 38) of said rotor (14), while said housing (16) presents in addition two flow orifices (54, 56) formed in said bottom wall (48) to be able to collect the injected heat transfer fluid in a tank. Said tank is divided into two independent flat tanks (60, 61), while said two outlets (54, 56) open respectively into said two flat tanks (60, 61).
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