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특허 상세정보

Electromagnetic flow control valve for a liquid metal with built-in flow measurement

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F16K-031/02    B22D-011/16    G01F-001/58   
미국특허분류(USC) 137/013 ; 137/251.1 ; 137/487.5 ; 137/827 ; 164/147.1 ; 738/611.1 ; 738/611.5
출원번호 US-0483611 (2000-01-14)
발명자 / 주소
대리인 / 주소
    Webb Ziesenheim Logsdon Orkin & Hanson, P.C.
인용정보 피인용 횟수 : 7  인용 특허 : 20
초록

An electromagnetic flow control valve for an electrically conductive liquid having a plurality of coils and yokes surrounding a non-metallic, such as alumina, tube through which an electrically conducting liquid, such as liquid metal, flows. Direct current applied to the coils causes retarding forces to be imposed on the flowing liquid. The electromagnetic flow control valve can be used in conjunction with a continuous caster where the electromagnetic flow control valve is in fluid communication with a tundish. Built-in galvanomagnetic probes measure cha...

대표
청구항

[ I claim:] [22.]22. A flow meter for measuring an electrically conductive liquid, comprising:an axially extending tube, said tube defining a central passageway adapted to permit an electrically conductive liquid to pass therethrough, said tube is transparent to a magnetic field and comprises a ceramic material;a plurality of Hall sensors positioned axially along said tube; andcombining means for combining signals generated by said Hall sensors to determine flow rate through said tube.

이 특허에 인용된 특허 (20)

  1. Urbanic John M. (Pittsburgh PA) Severa Daniel W. (Brackenridge PA) Arndt Eric D. (Lower Burrell PA). Apparatus and method for measuring flow rate of molten aluminum through a trough. USP1994015280726.
  2. Ketelsen Broder (Asternweg 15 D-3405 Rosdorf 9 DEX) Ketelsen Andres (Asternweg 15 D-3405 Rosdorf 9 DEX). Device for inductively measuring the state of a stream of electrically conductive liquid. USP1995095448920.
  3. Garnier ; Marcel A. ; Moreau ; Rene J.. Electromagnetic apparatus for construction of liquid metals. USP1978044082207.
  4. Wada Norikazu (Ichihara JPX). Electromagnetic flow meter. USP1979024137767.
  5. Murase Nobuyasu (Nagoya JPX). Electromagnetic flowmeter. USP1988044736635.
  6. Hemp John (Wootton GB2). Electromagnetic flowmeters. USP1996045503027.
  7. Hemp John (Cranfield GB2) Al-Khazraji Yousif A. H. (Baghdad IQX). Electromagnetic flowmeters and methods for measuring flow. USP1984034434666.
  8. Akiyama Shigeyuki (Miyanohigashi JPX) Tsutsui Tatsuhide (Miyanohigashi JPX). Electromagnetic induction-type conductivity meter with improved calibration with auxiliary circuit. USP1994085341102.
  9. Gerber Howard L. (Park Forest IL) Gass Richard T. (Chicago IL). Electromagnetic metering of molten metal. USP1992085137045.
  10. Lillicrap Douglas C. (Chester GB2). Electromagnetic valve. USP1990084947895.
  11. Lillicrap Douglas C. (Waverton GBX). Electromagnetic valve. USP1989024805669.
  12. Banko William (Bronx NY). Flow meter with hall effect sensor and method. USP1985044507976.
  13. Del Vecchio Robert M. (Turtle Creek PA) Slepian Robert M. (Pittsburgh PA). Liquid metal electromagnetic flow control device incorporating a pumping action. USP1989064842170.
  14. Feller Murray F. (Rte. 2 ; Box 562A Micanopy FL 32667). Magnetic flow sensor. USP1997115691484.
  15. Appel Eggert (Dransfeld DEX) Nissen Peter (Rosdorf DEX). Magnetic flowmeter. USP1982014308752.
  16. Coulthard John (1 Sinnington Close Guisborough ; Cleveland GB2). Measurement of relative velocities. USP1981024248085.
  17. Elizondo-Gonzalez Cesar (Nuevo Len MXX) Jurez-Mata Virgilio (Nuevo Len MXX) Viramontes-Brown Ricardo (Nuevo Len MXX) Quintero-Flores Raul (Nuevo Len MXX) Roesch-Dietlen Juan-Jorge (Nuevo Len MXX). Method and apparatus for regulating the flow of particulate ferromagnetic solids. USP1992055113890.
  18. Gloor Hans (Umiken CHX) Mller Eduard (Winterthur CHX). Method for regulating the flow of an electrically conductive fluid, especially of a molten bath of metal in continuous c. USP1987044655237.
  19. Garnier Jacques P. (Grenoble FRX) Garnier Marcel A. (Grenoble FRX) Moreau Rene J. (Voiron FRX). Process and device for confining liquid metals by use of an electromagnetic field. USP1982044324266.
  20. Garnier Marcel A. (Grenoble FRX) Moreau Rene J. (Voiron FRX). Process and device for the control of liquid metal streams. USP1980084216800.