Fluid pressure controller
    1.
    发明授权

    公开(公告)号:US06584999B2

    公开(公告)日:2003-07-01

    申请号:US09956981

    申请日:2001-09-21

    IPC分类号: G05D1620

    摘要: A fluid pressure controller has an air supply valve plug displaceable under an action of pilot pressure of a pilot chamber. When the air supply valve plug is seated on a seat section, fluid communication between a supply port and a regulator port is interrupted. Further, the fluid pressure controller has a solenoid valve. When electric power supply to the solenoid valve is interrupted, the solenoid valve is opened to generate pilot pressure applied to the air supply valve plug by the original pressure of pressurized fluid introduced from the pressurized fluid supply source to the supply port.

    Pneumatic pressure regulator
    3.
    发明授权
    Pneumatic pressure regulator 有权
    气动调压器

    公开(公告)号:US06305401B1

    公开(公告)日:2001-10-23

    申请号:US09355346

    申请日:1999-08-06

    IPC分类号: G05D1620

    摘要: The discharge pressure value is made to smoothly approach the predetermined pressure value and once the discharge pressure value reaches the predetermined pressure value, the fluctuation of the discharge pressure value is decreased. In case the difference C between the discharge pressure value P(B) of the pneumatic regulator and the predetermined pressure value A is relatively large, the solenoid valve 31 is driven by the pulse-width modulation signal D and hence, the rapidity of the input and output response (the variation characteristics of the pressure detection signal B relative to the predetermined pressure signal A) is held, while in case the discharge pressure value P is close to the predetermined pressure value Q, the solenoid valve 31 is driven by the pulse frequency modulation signal J and hence, the amount of excess, a so-called overshoot can be decreased and even after the discharge pressure value P reaches the predetermined pressure value Q, the fluctuation of the discharge pressure value P, namely, the ripple can be decreased.

    摘要翻译: 使排出压力值平稳地接近预定压力值,一旦排出压力值达到预定压力值,则排出压力值的波动减小。在排出压力值P(B) 气动调节器和预定压力值A相对较大,电磁阀31由脉冲宽度调制信号D驱动,因此输入和输出响应的快速性(压力检测信号B相对于 保持预定压力信号A),而在排出压力值P接近预定压力值Q的情况下,电磁阀31由脉冲频率调制信号J驱动,因此,过量的量, 即使在排出压力值P达到规定的压力值Q之后,称为过冲也能够减小放电的波动 压力值P即波动可以减小。