Rotary electric machine

A rotary electric machine comprising:

• a rotor shaft that defines a rotational axis, and in which an in-shaft flow channel is formed which is opened on an outer circumferential surface of the rotor shaft and through which a cooling fluid is sent;
• a rotor core through a center of which the rotor shaft passes, and in which an in-rotor-core flow channel is formed having an inner end opposing the opening of the in-shaft flow channel and an outer end opened on an outer circumferential surface of the rotor core;
• and
• a stator core that has a yoke having a circular ring shape or a circular tube shape, and teeth arranged on an inner circumferential surface of the yoke with a spacing therebetween in a circumferential direction, and that is placed to surround an outer circumference of the rotor core,
• wherein each of the teeth is divided with a gap between divided segments at a position opposing the outer end of the in-rotor-core flow channel such that an opening of the gap on an inner circumferential side is larger along the rotational axis than the outer end of the in-rotor-core flow channel,
• wherein in a cross-section perpendicular to the rotational axis, a cross-sectional shape of the gap between the divided segments is identical to a cross-sectional shape of the tooth, and the gap has a constant thickness along the rotational axis, and
• wherein the teeth are arranged along the inner circumferential surface of the yoke such that the gaps of the teeth are surrounded by the yoke.