| 摘要 |
PROBLEM TO BE SOLVED: To manufacture a compressor at low cost by using a surface-treated iron oil tube. SOLUTION: The compressor 1 includes a sealed casing 10 provided with an oil sump 10a on its bottom part, a compression mechanism 30 disposed in the sealed casing 10, a crankshaft 40 made of a cast iron or steel, passing through the compression mechanism 30, and having an oil supply hole inside the compression mechanism 30, and an iron oil tube 60 having a base end part inserted to one end of the oil supply port of the crankshaft 40 and an opening 62 opened in the oil reservoir 10a. The outer peripheral surfaces of the crankshaft 40 and the oil tube 60 are surface treated. COPYRIGHT: (C)2011,JPO&INPIT
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