| 摘要 |
PROBLEM TO BE SOLVED: To provide an air compressor which generates a high pressure compressed air by one compressor of a low pressure rise ratio, and generates the compressed air of high pressure, low pressure and the like by taking out the compressed air during a process of pressure rise. SOLUTION: When a three port cut-off popette valves 11, 12 are located in a low pressure position 1, the air communicates with a suction port 25 of the compressor 10, and a discharge port 26 of the compressor 10 communicates with a low pressure tank 13 to carry out compression in a first stage. When the cut-off popette valves 11, 12 are located in a high pressure position 11, the low pressure tank 13 communicates with a suction port 25 of the compressor 10, and a discharge port 26 of the compressor 10 communicates with a high pressure tank 14 to carry out compression in a second stage.
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