Patent ID: 8552603

Claim:
An electric rotating machine comprising: a rotor; a rotating shaft which is to be rotated by the rotor; a stator which faces a circumference of the rotor, the stator having a coil which is so wound as to have coil ends extending outside an end of the stator in an axial direction of the stator; a coolant channel which has defined therein a flow path through which coolant flows; a coolant supplying mechanism which supplies the coolant to the coolant channel; a flow separator disposed in the coolant channel, the flow separator working to separate a flow of the coolant into at least two streams; and a first and a second outlet, the first outlet communicating with a first coolant stream that is one of the two streams, as produced by the flow separator, the second outlet communicating with a second coolant stream that is the other of the two streams, the first and second outlets draining the coolant to different portions of the coil end, and wherein the flow separator has a stopper wall to stop the first coolant stream to create a pool of the coolant to which the first outlet opens.