| 摘要 |
<p>PURPOSE:To obtain a surpassing liquid pressure generating device for a gas insulation open/close unit provided with an easily renewable suction filter and a pump capable of maintaining higher delivery performance than those of conven tional pumps for a longer period than before. CONSTITUTION:A pump 1 is placed inside a tank 5 where liquid mass is stored and a suction filter 16 is connected to the suction side of the pump 1 through a coupling 17. In this case, the connecting portion 16a of the suction filter 16 is connected to the connecting opening 17a of the coupling 17 in a detachable manner and in a sealed condition. An opening 5b, through which the suction filter 16 is taken out, is provided on the portion 5a of the tank above the suction filter 16. The opening 5b is closed openably by means of a lid 20. The lid 20 and the suction filter 16 are connected together by means of a rod 19.</p> |
