Patent ID: 8247934

Claim:
An electric rotating machine comprising: a rotor rotatable around a rotating shaft disposed horizontally; a stator core formed with a plurality of slots arranged in a circumferential direction of the stator core so as to be opposed to a peripheral surface of the rotor; and a stator coil constituted of a plurality of in-slot portions each of which is accommodated in a corresponding one of the plurality of the slots, and a plurality of turn portions each of which connects corresponding adjacent two of the plurality of the in-slot portions at a position outside the stator core, the plurality of the turn portions forming a coil end projecting axially outward from an end surface of the stator core at each of both axial end sides of the stator core, the coil end being formed in a cylindrical shape including an axial end surface of a flat shape, and inner and outer peripheral surfaces of a circular shape; and a coolant supply section to supply coolant to an upper part of the outer peripheral surface of the coil end, wherein the coolant supply section is provided with a guide section disposed opposite to the outer peripheral surface of the coil end with a predetermined distance to downwardly guide coolant supplied to the upper part of the outer peripheral surface of the coil end, and the guide section is provided with a rib projecting radially inward and extending axially at a surface thereof opposite to the outer peripheral surface of the coil end.