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Compact controller for control valve

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F16K-031/128    G05D-007/06   
미국특허분류(USC) 137/486 ; 137/4875
출원번호 US-0516037 (1995-08-17)
우선권정보 DE-4431463 (1994-09-03)
발명자 / 주소
인용정보 피인용 횟수 : 10  인용 특허 : 6
초록
▼

A compact controller controls a control valve, wherein the control valve is actuated by a pneumatic actuator. The controller comprises control electronics for generating a control deviation signal. The control deviation signal is derived from the difference between an electrical standard set value signal and a converted electrically measured value signal. The converted electrically measured value signal is a measured value signal, the measured valve signal being a signal corresponding to a value of a predetermined process variable. An electropneumatic (E...

대표
청구항
▼

A controller for controlling a control valve, wherein the control valve is actuated by a pneumatic actuator, including a port for receiving pneumatic pressure the controller comprising: a) control electronics for generating a control deviation signal, the control deviation signal being derived from the difference between an electrical standard set value signal and a converted electrically measured value signal, the converted electrically measured value signal being derived from a measured value signal, the measured value signal being a signal correspondi...

이 특허에 인용된 특허 (6)

  1. Frick Roger L. (Eden Prairie MN). Control circuit for current to pressure converter. USP1984114481967.
  2. Brown Gregory C. (Chaska MN). Electric signal to pressure signal transducer. USP1985084534376.
  3. Askew Andy R. (Winston-Salem NC). Electric to pneumatic transducer. USP1995115469877.
  4. Brown Gregory C. (Minnetonka MN) Cucci Gerald R. (Minneapolis MN). Frequency feedback on a current loop of a current-to-pressure converter. USP1987054665938.
  5. Gassman George W. (Marshalltown IA) Varnum Gerald F. (Marshalltown IA). Positioner having user-adjustable dynamic response. USP1985044509403.
  6. Lenz Gary A. (Eden Prairie MN) Brown Gregory C. (Minnetonka MN) Warrior Jogesh (Chanhassen MN). Valve positioner with pressure feedback, dynamic correction and diagnostics. USP1996085549137.

이 특허를 인용한 특허 피인용횟수: 10

  1. Ye, Jianming; Simpson, Todd A.. Back pressure valve with dynamic pressure control. USP2005036866061.
  2. Adams Paul R. ; Gabel Karl J. ; Roper Daniel G.. Diagnostic device and method for pressure regulator. USP2000036035878.
  3. Igawa,Akinori; Takemoto,Shoji. Flow control valve and flow control device. USP2007017163024.
  4. Suzuki Isao,JPX. Flow rate control apparatus. USP2001016178996.
  5. Adams Paul R. ; Gabel Karl J. ; Roper Daniel G.. Intelligent pressure regulator. USP2000056056008.
  6. Matthew James Harold Rawlings GB. Metering devices. USP2002016341760.
  7. Lange Rainer,DEX. Microprocessor-controlled position regulator. USP1999035878765.
  8. Lafler, Lawrence R.; Tanner, Douglas J.. Pneumatic volume booster for valve positioner. USP2003126668848.
  9. Lawrence R. Lafler ; Douglas J. Tanner. Pneumatic volume booster for valve positioner. USP2002036357335.
  10. Kolbenschlag, Stefan. Transducer of an electrical input signal into pneumatic output signals. USP2010097802585.

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