| 摘要 |
PROBLEM TO BE SOLVED: To reduce the operation of an air compressor 1 at the less efficient high back pressure in a compressed air supply device. SOLUTION: The compressed air supply device is equipped with the air compressor 1 forcibly feeding the compressed air, an air suspension tank 7 which stores the high-pressure air supplied from the air compressor at a predetermined pressure and supplies to a predetermined place, and a supply tank 5 which stores the high-pressure air supplied from the air compressor at a predetermined pressure reduced at a predetermined throttle pressure, and supplies to other predetermined place. Additionally, the device is equipped with a first pressure controller 12 which detects that the high-pressure air is stored in the air suspension tank 7 up to a predetermined pressure, and generates the signal pressure, a second pressure controller 13 which detects that the high pressure air is stored in the supply tank 5 up to a predetermined pressure, and generates the signal pressure, and a low-pressure switching valve 14 which inputs the signal pressure from the first and second pressure controllers 12, 13, selects the lower pressure between them, and outputs the purge signal of the air compressor 1. COPYRIGHT: (C)2005,JPO&NCIPI
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