| 摘要 |
An oil-free lubrication centrifugal refrigerant compressor for compressing low-pressure refrigerant into high-pressure refrigerant, includes: a housing; a refrigerant pathway; a compression module; a radial bearing; a first conducting member, collecting troughs and a first exhaust member. Therein, the compression module has a rotating shaft, a compressing member and a driving member; the radial bearing is rotatably disposed around the rotating shaft; the first conducting member conducts lubricating refrigerant fluid to the outer surface of the radial bearing and the inner surface of the rotating shaft so as to provide appropriate lubrication to the radial bearing and the rotating shaft when the driving member drives the rotating shaft to rotate and activate the compressing member to compress low pressure refrigerant into high pressure refrigerant; and the first exhaust member exhausts the lubricating refrigerant fluid, thereby solving the problem of contamination caused by using oil lubricants for compressors as encountered in prior techniques.
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