COMPRESSOR

摘要

PROBLEM TO BE SOLVED: To provide a compressor of high efficiency and reliability making reduction capable of a sliding loss without causing surface damage of abrasion or the like by direct contact in a journal bearing part of the compressor even by using an HFCs refrigerant or a natural refrigerant containing no chlorine with a poor abrasion resistance characteristic. SOLUTION: Crowning is formed in a journal bearing end part of a journal bearing part for a compressor, also an oil film thickness parameter value Λrepresenting a bearing characteristic of the journal bearing part is set to Λ>3.3.