| 摘要 |
PROBLEM TO BE SOLVED: To provide an air supply system which, in spite of having a simple and low-cost configuration, can return oil separated from compressed air to an oil pan of an internal combustion engine without exerting bad influence, eliminates the necessity of troublesome work for treatment of oil etc., and can prevent staining of adjacent wall and ground caused by the oil etc.SOLUTION: In an air supply system 100, which stores compressed air, compressed by an air compressor 111 driven by an internal combustion engine 1, in an air tank 112 and uses the compressed air, an oil separation filter 200 is provided which separates oil from the compressed air and temporarily stores it therein when the air compressor 111 is loaded, and the oil stored in the oil separation filter 200 is led to an oil pan 1A of the internal combustion engine 1 when the pressure of the compressed air is not higher than a predetermined pressure. |
