发明授权
EP0734547B9 METHOD AND SYSTEM FOR CONTROLLING A PRESSURIZED FLUID AND VALVE ASSEMBLY FOR USE THEREIN
失效
方法和系统，以控制打印液体确保两合适的阀门安排
- 专利标题： METHOD AND SYSTEM FOR CONTROLLING A PRESSURIZED FLUID AND VALVE ASSEMBLY FOR USE THEREIN
- 专利标题（中）： 方法和系统，以控制打印液体确保两合适的阀门安排
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申请号： EP95904864.6申请日： 1994-12-12
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公开(公告)号： EP0734547B9公开(公告)日： 2003-08-20
- 发明人: MYLES, Colin, K.
- 申请人： Melea Limited
- 申请人地址： P.O. Box 239 215 Main Street Suites 2 & 3 Gibraltar Heights Gibraltar GI
- 专利权人： Melea Limited
- 当前专利权人： Melea Limited
- 当前专利权人地址： P.O. Box 239 215 Main Street Suites 2 & 3 Gibraltar Heights Gibraltar GI
- 代理机构： Rehders, Jochen, Dipl.-Ing.
- 优先权： US166255 19931213
- 国际公布： WO95016941 19950622
- 主分类号： G05B11/50
- IPC分类号： G05B11/50 ; G05D16/20
摘要：
A method and system are provided for controlling a pressurized fluid such as nitrogen gas which may be initially stored at a pressure as high as 20,000 psi. A valve assembly is utilized in the method and system and includes an electric proportioning device such as a pneumatic servovalve (14) and a pair of pneumatic, fluidly-coupled valves (16 and 18) which are piloted by the servovalve (14) to regulate the pressure of the pressurized nitrogen gas. In the method and system, the servovalve (14) operates in a closed loop fashion by utilizing feedback from a feedback device such as a pressure transducer (40). A controller (46) in the closed loop is responsive to a pressure signal from the pressure transducer (40) and a preset reference signal to provide an error control signal to the servovalve (14).
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