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32. 发明专利

JPS5686203A UNLOADING CIRCUIT 失效
公开(公告)号：JPS5686203A
公开(公告)日：1981-07-13
申请号：JP16230779
申请日：1979-12-13
申请人： KAWASAKI HEAVY IND LTD
发明人： KOKUNI HIROSHI
IPC分类号： F15B11/00
摘要： PURPOSE:To obtain an intended cut-in/cut-out pressure by a constitution wherein an unloading circuit of a fluid pressure container of a large capacity consists of a pilot operating circuit utilizing a small unloading relief valve and a large quantity on-off valve operated through the pilot operating circuit. CONSTITUTION:When an unloading relief valve 23 is closed, an oil pressure change-over valve 12 is positioned at a function position A and makes a pilot line 16 of a pilot check valve 15 communicate to a tank 7. Accordingly, the valve 15 is closed and an on-off valve 5 is closed because of a liquid pressure of a main duct 2 side operating the pilot chamber 11 and a delivery liquid from an oil pressure pump 1 is fed to a large capacity fluid pressure container which is not shown in a figure, through the main duct 2. At this time, when a pilot pressure Pi of a pilot duct 13 reaches an cut-out pressure, a relief valve 23 is opened and the change-over valve 12 is changed-over to a position B. With this, the valves 15 and 5 are opened, sequentially and the pump delivery liquid is returned to the tank 7 through a branched pipe 4.

35. 发明专利

JPS5353003A PRESSURE CYLINDER 失效
公开(公告)号：JPS5353003A
公开(公告)日：1978-05-15
申请号：JP12859976
申请日：1976-10-25
申请人： KAWASAKI HEAVY IND LTD
发明人： KOKUNI HIROSHI
IPC分类号： F04B9/08
摘要： PURPOSE:To plan excellent pressure in the pressure cylinder by supplying gas automatically in the case of lowering pressure due to leakage of sealed gas, in the pressure cylinder which gas such as air or nitrogen gas are sealed.

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