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특허 상세정보

Adjustable choke

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F16K-047/04   
미국특허분류(USC) 251/122 ; 138/46 ; 138/45
출원번호 US-0563190 (1975-03-28)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 29  인용 특허 : 0
초록

A low pressure drop adjustable choke has a variably adjustable tapered annular port for metering flow of a fluid. The annular port is defined by a tapered plug extending through a mating, correspondingly tapered seat. The area of the port is selectively varied by axial movement of the plug relative to the seat. The device is mechanically adjustable to a selected flow rate, which may be indicated on a precision indicator.

대표
청구항

An adjustable choke for metering a flow of fluid, comprising: a choke body having an inlet port to permit passage of fluid into said body and a discharge section through which fluid can depart said body; a valve seat having an inwardly tapering right conically shaped surface disposed within said choke body downstream of the inlet port, said seat having a discharge opening, the tapering surface of said seat having a length at least 0.25 times the diameter of said discharge opening; an axially movable plug extending through said seat and having a right con...

이 특허를 인용한 특허 피인용횟수: 29

  1. Drexel Charles F. (Rolling Hills Estates CA) Blair Richard F. (Long Beach CA). Adjustable laminar flow bypass. USP1985064524616.
  2. Madison, Kent R.. Aquifer recharge valve and method. USP2004116811353.
  3. Madison,Kent R.. Aquifer recharge valve and method. USP2007017156578.
  4. Madison, Kent R.. Aquifier flow controlling valve assembly and method. USP2013098522887.
  5. Breyer Karl (Ingelfingen DEX) Tesar Roland (Winterbach DEX). Control valve. USP1987114707278.
  6. Eckholz, Holger. Control valve. USP2017069689499.
  7. Colby, Douglas D.; Liu, Louie Xu. Fine control gas valve. USP2014088800597.
  8. Colby, Douglas D.; Liu, Louie Xu. Fine control gas valve. USP2017079695945.
  9. Beffano John J. (Houston TX). Flow control mechanism for high pressure wells. USP1982114356997.
  10. Seger Fritz O. (Mission Viejo CA). High pressure valve. USP1982074337788.
  11. Renfro Wesley E. (P.O. Box 1320 Houma LA 70360). Hydraulic choke device. USP1985054518148.
  12. Renfro Wesley E. (2804 Broadmoor Houma LA 70360). Hydraulic choking device. USP1985014493336.
  13. Williamson, Jimmie Robert. Infinitely variable control valve apparatus and method. USP2004046715558.
  14. Ruyak Robert F. (Erie PA). Magnetically actuated metering valve. USP1981104296912.
  15. Donald, Ian; Reid, John. Method and apparatus for oil and gas operations. USP20190110174575.
  16. Carey ; Jr. Henry S. (Wilsonville AL). Non-plugging injection valve. USP1985064522222.
  17. Donald, Ian; Reid, John. Oilfield apparatus and methods of use. USP2016099441452.
  18. Donald, Ian; Reid, John. Oilfield apparatus and methods of use. USP2017049611714.
  19. Etheridge Reggie H. (Houston TX). Piloted wellhead flow control valve. USP1987054662603.
  20. John Daniel Muchow. Retrievable downhole adjustable choke. USP2002016338385.
  21. Platt Robert J. (Dover NJ) Shadbolt Edward A. (Basking Ridge NJ). Streamline coal slurry letdown valve. USP1983114413646.
  22. Fortune Jeffrey L. (3901 40th St. S. St. Petersburg FL 33711). Thermosensitive safety valve. USP1979034143812.
  23. Fortune Jeffrey L. (5820 Balao Way ; South St. Petersburg Beach FL 33706). Thermosensitive safety valve. USP1980074212424.
  24. Enderle Eckhard (Aalen-Wasseralfingen DEX). Throttle for gas bearings. USP1984074461517.
  25. Rusnak Miro (LaVerne CA). Valve. USP1985074530486.
  26. Geelhart, Theodore Paul; Barron, Kimball Ralph. Valve trim retention apparatus. USP2012058186646.
  27. Wallace Glenn E. (2063 S. Della La. Anaheim CA 92802). Variable orifice valve. USP1997045618022.
  28. Wallace Glenn E.. Water well recharge throttle valve. USP2000066073906.
  29. Wallace Glenn E. ; Peterson Mark H.. Water well recharge throttle valve. USP1999025871200.