Patent ID: 8338995

Claim:
A cooling fluid path structure for a superconducting rotating machine, which is for cooling a rotor of the superconducting rotating machine by circulating a cooling fluid between a fixed fluid supply means and the rotating rotor, the cooling fluid path structure comprising: a fixed inlet fluid path fixed together with the fluid supply means, to which the cooling fluid discharged from the fluid supply means is transferred; a rotating inlet fluid path adjacently connected to an outlet of the fixed inlet fluid path, which is for transferring the cooling fluid transferred from the fixed inlet fluid path to a cooling fluid path inlet provided in the rotor while rotating together with the rotor; a rotating outlet fluid path rotating together with the rotor, to which the cooling fluid discharged from a cooling fluid path outlet of the rotor is transferred; and a fixed outlet fluid path adjacently connected to the rotating outlet fluid path, which is for transferring the cooling fluid transferred from the rotating outlet fluid path to the fluid supply means while being fixed together with the fluid supply means, wherein the rotating outlet fluid path and the fixed outlet fluid path are disposed in such a manner that they surround outside of the rotating inlet fluid path and the fixed inlet fluid path.