Air servo valve
    1.
    发明申请
    Air servo valve 有权
    空气伺服阀

    公开(公告)号:US20030131896A1

    公开(公告)日:2003-07-17

    申请号:US10294626

    申请日:2002-11-15

    申请人: SMC Corporation

    IPC分类号: F15B013/044

    摘要: An exciting coil is wound on a cylindrical yoke provided with a pair of pole teeth, a cylindrical permanent magnet where N pole and S pole are magnetized in a radial direction is disposed so as to be movable in a hollow portion of the yoke and the permanent magnet is coupled toa spool byamagnet holder, and a displacement sensor is disposed in a hollow portion of the permanent magnet so as to be positioned on a center axial line of the permanent magnet, so that the displacement of the permanent magnet is detected by the displacement sensor and the degree of opening of the spool is controlled by performing feedback of the displacement to a control portion.

    摘要翻译: 励磁线圈缠绕在设置有一对极齿的圆柱形轭上,其中N极和S极沿径向磁化的圆柱形永久磁铁被设置成可以在轭的中空部分中移动并且永久地 磁体连接到卷轴旁磁体保持器,并且位移传感器设置在永磁体的中空部分中,以便位于永磁体的中心轴线上,使得通过位移检测永磁体的位移 传感器和阀芯的打开程度通过对控制部分执行位移反馈来控制。

    High speed driving method and apparatus of pressure cylinder
    3.
    发明申请
    High speed driving method and apparatus of pressure cylinder 有权
    压力缸高速行驶方法及装置

    公开(公告)号:US20030079602A1

    公开(公告)日:2003-05-01

    申请号:US10273130

    申请日:2002-10-18

    申请人: SMC Corporation

    IPC分类号: F15B013/16

    摘要: A pressure cylinder is connected to an air pressure source through a servo valve, the servo valve is controlled as an on/off switching valve by a control section in an advancing working step of a piston rod, and at the time of backward stroke of the piston rod, an operation position of the piston rod is detected by a position detector to feedback a detection signal to the control section, the servo valve is controlled by the control section such that a deviation between the operation position and a preset stopping position is eliminated, the piston rod is stopped at an intermediate stopping position, and a state in which substantially the same pressures are supplied to pressure chambers formed on opposite sides of the piston is maintained.

    摘要翻译: 压力缸通过伺服阀连接到空气压力源,在活塞杆的前进工作步骤中,通过控制部将伺服阀控制为开/关切换阀,并且在后退行程时, 活塞杆,通过位置检测器检测活塞杆的操作位置,将检测信号反馈到控制部,伺服阀由控制部控制,使得操作位置与预设停止位置之间的偏差被消除 活塞杆停止在中间停止位置,并且保持向活塞的相对侧形成的压力室供给基本相同的压力的状态。