| 摘要 |
PROBLEM TO BE SOLVED: To prevent heating of a bearing part in a scroll fluid machinery. SOLUTION: A connecting board 32 provided with a driving bearing 40 is fixed to a panel board 24 of a turning scroll 4 with an insulating material 34 interposed, and a crank part 29 of a driving shaft 13 is supported by this driving bearing 40 to constitute the connecting body and the turning scroll 4 integrally in capable of a turning motion. To this connecting board 32, a bearing 38 can be provided for rotatably supporting one end of a crank shaft 37 which prevents rotation of the turning scroll 4 by connecting the connecting board 32 to an inner wall of a casing 5, and the driving shaft 13 is inserted into a shaft hole 28 of the turning scroll 4 so that a predetermined interval is formed between an inner circumferential face of the shaft hole 28 and an outer circumferential face of the driving shaft 13. By this, heat of the turning scroll 4 is not directly transmitted to the turning bearing 40 or the bearing 38.
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