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    • 3. 发明专利
    • Valve
    • JP2013108552A
    • 2013-06-06
    • JP2011252902
    • 2011-11-18
    • Japan Agengy For Marine-Earth Science & Technology独立行政法人海洋研究開発機構
    • ITO HISAOKATO KAZUMASA
    • F16K11/07F16K31/04
    • F16K11/0708
    • PROBLEM TO BE SOLVED: To provide a valve that can be made compact so as to be usable as a portion (component) of a wireline/downhole tool, or the like.SOLUTION: A valve 10 includes a piston 16 and a valve body 12 having a piston hole 18 for accommodating the piston 16. The valve body 12 is provided with: a plurality of channels 20 that extend along the axial direction of the piston 16 and have openings 14; and a plurality of communicating passages 22 that respectively communicate with the channels 20 and communicate with the piston hole 18 at positions 24 different from one another in the axial direction. The piston 16 is provided with sealing members 28, 30, which seal between the piston 16 and the piston hole 18 and are arranged at an interval corresponding to the spacing of communicating portions of the piston hole 18 with the plurality of communicating passages 22. A gap is formed between the piston hole 18 and an outer surface of a portion 34 of the piston 16 between the sealing members 28, 30.
    • 要解决的问题:提供一种能够紧凑地形成为可用作电缆/井下工具的一部分(部件)等的阀。 解决方案:阀10包括活塞16和具有用于容纳活塞16的活塞孔18的阀体12.阀体12设置有:多个通道20,其沿活塞的轴向方向延伸 16并具有开口14; 以及多个连通通道22,其分别与通道20连通并且在轴向方向上彼此不同的位置24处与活塞孔18连通。 活塞16设置有密封构件28,30,密封构件28,30在活塞16和活塞孔18之间密封,并且以与活塞孔18的连通部分与多个连通通道22的间隔相对应的间隔布置.A 在活塞孔18与密封件28,30之间的活塞16的一部分34的外表面之间形成间隙。(C)2013,JPO&INPIT