| 摘要 |
PROBLEM TO BE SOLVED: To improve performance of an oil-cooled air compressor, such as delivery air quantity, energy-saving performance and deterioration prevention of lubricant.SOLUTION: An oil-cooled air compressor 1 includes a compressor body 2, an oil separation recovery device 3, an oil cooler 4, and a gravity type oil/moisture separation device 5. The oil reservoir of the oil separation recovery device 3 is connected to a suction port 2c of the compressor body 2 through an oil supply flow passage 7. Lubricant supplied to the compressor body 2 is cooled so that the temperature of compressed air discharged from a discharge port 2d of the compressor body 2 becomes an oil supply temperature equal to or less than a dew point. The gravity type liquid tank 5 is provided in the oil supply flow passage 7. |
