| 摘要 |
PROBLEM TO BE SOLVED: To provide a high air pressure case body device capable of elevating a pressure inside a case body to a desired pressure in a short time. SOLUTION: At the time of using the high air pressure case body device, two pressurizing pumps 31a and 31b are driven first. Since an air pressure inside the case body 20 does not reach a prescribed pressure at the time of starting the respective pressurizing pumps 31a and 31b, pressurizing air is directly supplied into the case body 20 through the respective pressurizing pumps 31a and 31b. At the time of reaching the prescribed pressure during the air pressure elevation, switching valves 51a and 51b switch the air supply system of one pressurizing pump 31b from a pressurizing air supply means to an oxygen supply means. Thus, the air of one pressurizing pump 31b is supplied through an oxygen enricher 41 into the case body 20 thereafter. COPYRIGHT: (C)2006,JPO&NCIPI
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