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    • 10. 发明申请
    • MANUAL OVERRIDE SYSTEM FOR LINEAR MAGNETICALLY OPERATED VALVE
    • 用于线性磁力操作阀的手动超车系统
    • WO1994005938A1
    • 1994-03-17
    • PCT/CA1992000391
    • 1992-09-10
    • NOVA SCOTIA RESEARCH FOUNDATION CORPORATIONOLIVER, John, B.
    • NOVA SCOTIA RESEARCH FOUNDATION CORPORATION
    • F16K31/08
    • F16K43/00F16K31/086F16K31/1262
    • The present invention provides a manual override system for a linear magnetically operated valve assembly having a valve member reciprocally located in a valve body. A first carrier member connected to the valve member mounts a peripheral set of driven magnets. A barrier member surrounds the first carrier member and is hermetically sealed to the valve body. A second carrier member surrounds the barrier member and mounts a set of drive magnets for magnetically inducing following linear movement in the first carrier member and the valve member in response to specific linear movement of the second carrier member. The manual override system includes a piston member reciprocally located in the valve body for linear movement between the valve body and the first carrier member, the piston member having an annular skirt thereon sealingly engaging an inner bore of the valve body and defining first and second sealed chambers on respective sides thereof within the valve body. Hydraulic fluid is contained within each chamber. One of the chambers can be further pressured while the other chamber is drained to effect linear movement of the piston member into abutting engagement with the valve member or the first carrier to move the valve member towards a closed or an open valve position respectively. The override system is effective in opening or closing a jammed valve in which the magnetic interaction is not sufficient to effect movement of the valve member.
    • 本发明提供了一种用于线性磁力操作阀组件的手动超控系统,其具有往复地位于阀体中的阀构件。 连接到阀构件的第一承载构件安装周边的驱动磁体组。 阻挡构件围绕第一承载构件并且气密地密封到阀体。 第二承载构件围绕阻挡构件并且安装一组驱动磁体,用于响应于第二承载构件的特定线性运动而在第一承载构件和阀构件中磁性地引起跟随线性运动。 手动超驰系统包括往复地位于阀体中的活塞构件,用于阀体和第一承载构件之间的直线运动,活塞构件具有环形裙部,密封地接合阀体的内孔并限定第一和第二密封 在阀体内的各侧的腔室。 液压油被包含在每个室内。 其中一个室可被进一步加压,而另一个室被排出以实现活塞构件与阀构件或第一承载件邻接接合的线性运动,以分别将阀构件朝向关闭或打开的阀位置移动。 超控系统有效地打开或关闭其中磁相互作用不足以实现阀构件的移动的卡住阀。