| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent a mechanical loss from increasing under an operation condition that a rotational speed of a drive shaft is within a high speed range. <P>SOLUTION: This compressor includes: a driving mechanism (20) having the drive shaft (23); a compression mechanism (30) driven by the drive shaft (23) to compress a refrigerant inside; an oil supply mechanism (50) for supplying a lubricant into the compression mechanism (30); a rotational-speed adjusting part (82) for adjusting the rotational speed of the drive shaft (23); and an oil-viscosity reduction mechanisms (70, 84) for reducing the viscosity of the lubricant supplied to the compression mechanism (30) when the rotational speed of the drive shaft (23) is within a predetermined high-speed range. <P>COPYRIGHT: (C)2012,JPO&INPIT |
