| 摘要 |
PROBLEM TO BE SOLVED: To obtain a refrigerant compressor in which a lubricating property of each slide part is not lowered even if a liquid refrigerant is located in an oil sump and lubricating oil is located in its upper layer.SOLUTION: A refrigerant compressor includes an electric motor mechanism 10, a compressor mechanism 20 for compressing the refrigerant, a principal shaft 30 extending vertically which connects the electric motor mechanism 10 and the compressor mechanism 20 and transmits the torque of the electric motor mechanism 10 to the compressor mechanism 20, an airtight container 40 for storing these items, the oil sump 41 which is installed at the bottom of the airtight container 40 and stores lubricating oil, a lower side oil supply mechanism 70 which is installed at the lower end of the principal shaft 30 so as to be located in the oil sump 41, sucks up the lubricating oil, and supplies it to each slide part of the principal shaft 30 and the compressor mechanism 20 when the lubricating oil is located in the own installation position, and an upper side oil supply mechanism 80 which is installed on the principal shaft 30 so as to be located above the liquid surface position of the regulation oil amount of the lubricating oil, sucks up the lubricating oil, and supplies it to each slide part of the principal shaft 30 and the compressor mechanism 20 when the lubricating oil is located in the own installation position. |
