| 摘要 |
PROBLEM TO BE SOLVED: To properly increase an oil circulation ratio in a high-speed operation to improve durability of a compressor, in a compressor having a separation chamber separating lubricating oil. SOLUTION: The compressor comprises: compression mechanisms 1, 2, 4 compressing fluid containing lubricating oil; a tubular separation chamber 18 in which the fluid compressed by the compression mechanisms 1, 2, 4 is guided and at least part of the lubricating oil contained in the fluid is separated; and an oil storage chamber 15 storing the lubricating oil separated from the fluid in the separation chamber 18. An oil guide passage 20 connecting the separation chamber 18 with the oil storage chamber 15 are provided, and the separation chamber 18 is connected with the oil guide passage 20 through an orifice 19 smaller in cross-sectional area than the separation chamber 18. COPYRIGHT: (C)2009,JPO&INPIT
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