Rotating electric machine system

A rotating electric machine system comprising:

• a rotor including a magnet;
• a stator configured to surround the rotor;
• a housing in which the rotor and the stator are accommodated, and configured to rotatably support the rotor,
• wherein, on at least one of an interior or an outer circumferential portion of the rotor, a cooling passage is provided through which there flows a cooling gas supplied from a gas supplying mechanism which is provided separately from the rotor;
• the rotating electric machine system further comprises a rectifying structure including a plurality of fins configured to rectify flow of the gas;
• the rectifying structure is fixed to a non-rotating portion inside the housing in a manner so as to face toward the cooling passage;
• the cooling passage includes:
• a rotor internal cooling passage disposed in the interior of the rotor, and
• a gas flow passage disposed between the rotor and the stator and through which the gas flows;
• each of the plurality of fins directly face each of the rotor internal cooling passage and the gas flow passage in an axial direction of the rotor;
• a first space that is provided on an upstream side of the gas flow passage and the rotor internal cooling passage and communicates with each of the gas flow passage and the rotor internal cooling passage, and
• a second space that is provided on a downstream side of the gas flow passage and the rotor internal cooling passage and communicates with each of the gas flow passage and the rotor internal cooling passage,
• wherein
• the gas supplied to the first space branches and flows into the gas flow passage and the rotor internal cooling passage,
• the gas flowing through each of the gas flow passage and the rotor internal cooling passage merges at the second space, and
• each of the plurality of fins is disposed in the first space and the second space.