| 摘要 |
PROBLEM TO BE SOLVED: To provide a compressor that has high energy conservation properties while keeping a discharge temperature high, in control of the number of revolutions of a cooling fan in an oilless compressor.SOLUTION: During an unloading operation, the number of revolutions of a cooling fan is controlled so that a temperature detected by a temperature sensor for detecting the temperature of a lubricant can be a preset reference temperature. When the unloading operation is shifted to a loading operation, the cooling fan is accelerated by an acceleration α higher than an acceleration during the unloading operation, and a sharp rise in the temperature of discharge air is suppressed. This enables optimization of a discharge temperature and energy saving. |
