| 摘要 |
PROBLEM TO BE SOLVED: To provide a casingless and oilless fluid machine capable of sufficiently cooling the part to be cooled, even if small sized in the fluid machine. SOLUTION: The fluid machine has a helical mechanism 2 and a motor 4 to drive thereof. The motor 4 consists of an outer rotor type, and comprises a stator 41 fixed to a bearing member 44 supporting a rotating shaft 3 and a rotor 42 fixed to the rotating shaft 3 via a rotor frame 45, and arranged outside the stator 41. A ventilation hole 45b1 is formed in a frame part 45b of the rotor frame 45. COPYRIGHT: (C)2006,JPO&NCIPI
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