ROTARY SHUT OFF VALVE
    1.
    发明申请
    ROTARY SHUT OFF VALVE 审中-公开
    旋转关闭阀

    公开(公告)号:WO1996007845A1

    公开(公告)日:1996-03-14

    申请号:PCT/US1995011354

    申请日:1995-09-05

    CPC classification number: F16K31/1635 F16K31/54 Y10T74/18096 Y10T74/18808

    Abstract: A rotary flow control valve (10) including a valve spool (12) which is rotated back and forth to move a port (12b) in the valve spool (12) into and out of alignment with the main fluid passageway (20a) of the valve (10) to selectively open and close the valve (10). The spool (12) has a pinion gear (12c, 12f) at each end of the spool (12) and each pinion gear (12c, 12f) is engaged by a pair of racks (40a-40e) with the racks (40a-40e) in a pair moving at any given time in opposite directions. Each rack (40a-40e) is constitued by spaced rack teeth (40e) formed in the side wall (40d) of a piston (40) slidably mounted in a cylinder bore (16b, 16c, 18b, 18c) in the valve body (16, 18), and the rotaiton of the valve spool (12) is achieved by selective routing of pressurized fluid to the cylinder bores (16b, 16c, 18b, 18c) containing the pistons (40) defining the racks (40a-40e).

    Abstract translation: 一种旋转流量控制阀(10),包括一个前后旋转以将阀芯(12)中的端口(12b)移动到与主流体通路(20a)对准的阀芯(12) 阀(10)以选择性地打开和关闭阀(10)。 阀芯(12)在阀芯(12)的每个端部具有小齿轮(12c,12f),每个小齿轮(12c,12f)与一对齿条(40a-40e)与齿条(40a- 40e)在任何给定的时间在相反的方向移动。 每个机架(40a-40e)由形成在可滑动地安装在阀体中的气缸孔(16b,16c,18b,18c)中的活塞(40)的侧壁(40d)中的间隔开的齿条齿(40e) 通过将加压流体选择性地路由到包含限定了机架(40a-40e)的活塞(40)的气缸孔(16b,16c,18b,18c)而实现阀芯(12)的旋转, 。

Patent Agency Ranking