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    • 8. 发明专利
    • Compressor
    • JP4807332B2
    • 2011-11-02
    • JP2007189867
    • 2007-07-20
    • ダイキン工業株式会社
    • 勝三 加藤洋平 西出
    • F04C29/02F04C18/02
    • PROBLEM TO BE SOLVED: To prevent excessive lubricant from being supplied to a rolling bearing while supplying the lubricant into a compressor mechanism. SOLUTION: The scroll compressor is provided with the compressor mechanism 15, a crank shaft 17, the rolling bearing 31 and a casing 11. The compressor mechanism 15 is provided with a fixed scroll and a rotating scroll 26 for compressing refrigerant together with the fixed scroll. The crank shaft 17 is provided with a main shaft 17a and an eccentric part 17b eccentric from a rotation shaft and a through hole 171 piercing through the crank shaft itself is arranged. The rolling bearing 31 supports the main shaft 17a. Spaces 40, 291 and passages 26a1, 26a2 are arranged in the casing 11. The refrigerant compressed by the compressor mechanism 15 flows in the space 40. In the space 291 which is a different space from the space 40, pressure is lower than that of the space 40 while the scroll compressor is being driven. The passages 26a1, 26a2 extend from an end 1711 of the through hole 171 only to a space 291. COPYRIGHT: (C)2009,JPO&INPIT