| 摘要 |
PROBLEM TO BE SOLVED: To make a self-cooling function act by an internal leak only in an emergency such as in a fire to demonstrate fireproof performance, while saving energy without increase in weight cost nor impairing controllability. SOLUTION: In the hydraulic device 1, flammable liquid is used as working fluid, and the working fluid is supplied into neighboring high pressure chamber 5 or 6 and a low pressure chamber 6 or 5. The high pressure chamber 5 communicates with the low pressure chamber 6 through a throttle flow path 11, and the throttle flow path 11 is closed with a closing member 14. The closing member 14 is removed from the throttle flow path 11, at a usable upper limit temperature or higher of the hydraulic device 1 and at a heatproof temperature or lower of seal members 12, 13 used in the hydraulic device. COPYRIGHT: (C)2011,JPO&INPIT
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