$\require{mediawiki-texvc}$
  • 검색어에 아래의 연산자를 사용하시면 더 정확한 검색결과를 얻을 수 있습니다.
  • 검색연산자
검색도움말
검색연산자 기능 검색시 예
() 우선순위가 가장 높은 연산자 예1) (나노 (기계 | machine))
공백 두 개의 검색어(식)을 모두 포함하고 있는 문서 검색 예1) (나노 기계)
예2) 나노 장영실
| 두 개의 검색어(식) 중 하나 이상 포함하고 있는 문서 검색 예1) (줄기세포 | 면역)
예2) 줄기세포 | 장영실
! NOT 이후에 있는 검색어가 포함된 문서는 제외 예1) (황금 !백금)
예2) !image
* 검색어의 *란에 0개 이상의 임의의 문자가 포함된 문서 검색 예) semi*
"" 따옴표 내의 구문과 완전히 일치하는 문서만 검색 예) "Transform and Quantization"

통합검색

도움말도움말
상세검색 다국어 입력

연합인증

연합인증 가입 기관의 연구자들은 소속기관의 인증정보(ID와 암호)를 이용해 다른 대학, 연구기관, 서비스 공급자의 다양한 온라인 자원과 연구 데이터를 이용할 수 있습니다.

이는 여행자가 자국에서 발행 받은 여권으로 세계 각국을 자유롭게 여행할 수 있는 것과 같습니다.

연합인증으로 이용이 가능한 서비스는 NTIS, DataON, Edison, Kafe, Webinar 등이 있습니다.

한번의 인증절차만으로 연합인증 가입 서비스에 추가 로그인 없이 이용이 가능합니다.

다만, 연합인증을 위해서는 최초 1회만 인증 절차가 필요합니다. (회원이 아닐 경우 회원 가입이 필요합니다.)

연합인증 절차는 다음과 같습니다.

최초이용시에는
ScienceON에 로그인 → 연합인증 서비스 접속 → 로그인 (본인 확인 또는 회원가입) → 서비스 이용

그 이후에는
ScienceON 로그인 → 연합인증 서비스 접속 → 서비스 이용

연합인증을 활용하시면 KISTI가 제공하는 다양한 서비스를 편리하게 이용하실 수 있습니다.

특허 상세정보

MyON담기
내보내기 페이스북 공유 카카오톡 공유

Feed forward control of expansion valve

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F25B-041/04    G05D-015/00   
미국특허분류(USC) 62/204 ; 62/228.5 ; 236/078D
출원번호 US-0768743 (1996-12-17)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Beres
인용정보 피인용 횟수 : 25  인용 특허 : 35
초록

A method of controlling an expansion valve in a refrigeration system. The method comprises the steps of controlling the modulation of the expansion valve based upon a first feedback control criteria; and controlling the modulation of the expansion valve based upon a second feed forward control criteria.

대표
청구항
▼

[ What is claims as Letters Patent of the United States are:] [1.] A method of controlling an expansion valve in a refrigeration system, the method comprising the steps of:controlling the modulation of the expansion valve based upon a first feedback control criteria; and alsocontrolling the modulation of the expansion valve based upon a second feed forward control criteria;wherein the feedback modulation of the expansion valve is based on conventional PID control and wherein the feed forward modulation of the expansion valve is based on feed forward cont...

이 특허에 인용된 특허 (35)

  1. Ohkoshi Seizi (Shizuoka JPX). Air conditioning apparatus. USP1993095241833.
  2. Beaverson David W. (Bowling Green OH) Clay David A. (Perrysburg OH). Apparatus and method for monitoring refrigeration system. USP1992015079930.
  3. Stewart William S. (Bartlesville OK) Hottovy John D. (Bartlesville OK) Blaesi John E. (Bartlesville OK). Automatic control of a multiple-effect evaporator. USP1987064676870.
  4. Lakowske Rodney (La Crosse WI) Tischer James C. (La Crescent MN) Eber David H. (La Crosse WI). Centrifugal fan with variable blade pitch. USP1987054662819.
  5. Linnert Peter J. (La Crosse WI). Combination lift piston/axial port unloader arrangement for a screw compresser. USP1993055211026.
  6. Han Doyoung (North Syracuse NY) Renaud Merle A. (Onalaska WI). Control and method for modulating the capacity of a temperature conditioning system. USP1987124715190.
  7. Han Doyoung (North Syracuse NY) Renaud Merle A. (Onalaska WI). Control and method for modulating the capacity of a temperature conditioning system. USP1987094689967.
  8. Arima Hidetoshi (Gunma JPX) Enomoto Eiichi (Saitama JPX) Furukawa Masahiro (Gunma JPX) Yoshii Kazuhiro (Gunma JPX) Oonou Masayuki (Gunma JPX) Kaneko Toshiyuki (Ota JPX) Ogawa Atsushi (Hirakata JPX) M. Control device for absorption refrigerator. USP1992105156013.
  9. Ogawa Atsushi (Hirakata JPX) Hitomi Kazuhiro (Hirakata JPX) Maekawa Masahiro (Hirakata JPX) Yoshii Kazuhiro (Ora JPX) Arima Hidetoshi (Ora JPX) Enomoto Eiichi (Saitama JPX). Control system for absorption refrigerator. USP1992085138846.
  10. Yoshikawa Seimi (Ohgaki JPX) Yamada Hideo (Ohgaki JPX) Okubo Yoichi (Gifu JPX). Cooling control system and expansion valve therefor. USP1985034506518.
  11. Clarke Jan D. (York PA) Bennis Steven A. (Lancaster PA) Chidester Buford B. (York PA) Klidonas Gregory P. (York PA) Klinger Stephen E. (Etters PA) Mohlman Brian K. (Seven Valleys PA) Sweigart ; II Do. Electronic slide valve position indicator. USP1993115257921.
  12. Powell James W. (Hartland MI) Voss Mark G. (Brighton MI) Hurley John F. (Easton CT) Hartel Edward O. (Orange CT). Environmental control system. USP1993115257508.
  13. Friday Arthur F. (Liverpool NY) Ginn Richard E. (Williamstown NY) Wright ; Jr. Edward F. (Cicero NY). Expansion valve control. USP1994075329462.
  14. Imanishi Masami (Wakayama JPX) Tanaka Naoki (Hyogo JPX). Heat pump system. USP1985024498310.
  15. Glamm Paul R. (La Crosse WI). Incremental electrically actuated valve. USP1990054928494.
  16. Glamm Paul R. (La Crosse WI). Incremental electrically actuated valve. USP1991045011112.
  17. Tischer James C. (La Crescent MN). Incremental electrically actuated valve. USP1991014986085.
  18. Tischer James C. (La Crescent MN). Incremental electrically actuated valve. USP1992015083745.
  19. Goubeaux Ronald J. (Lockport NY) Pettitt Edward D. (Burt NY). Low refrigerant charge protection method for a variable displacement compressor. USP1991045009074.
  20. Alsenz Richard H. (2402 Creekmeadow Dr. Missouri City TX 77459). Method and apparatus for condensing and subcooling refrigerant. USP1992055115644.
  21. Weitman Jacob (Tryffelstigen 8 S-611 63 Nykoping SEX). Method and apparatus for controlling a counter-flow heat exchanger. USP1986034574870.
  22. Rentmeester Paul C. (La Crosse WI) Murry Michael W. (Onalaska WI) Krocker Robert E. (Stoddard WI) Clanin Thomas J. (Onalaska WI). Method and apparatus for determining full load condition in a screw compressor. USP1991075027608.
  23. Hibino Yozo (Ibaraki JPX) Yamada Sakae (Ibaraki JPX). Monitoring system for screw compressor. USP1985034502833.
  24. Swanson Robert M. (La Crosse WI) Rentmeester Paul C. (La Crosse WI) Foye David M. (La Crosse WI). Multilevel phase unbalance compressor motor protection system. USP1991105058031.
  25. Andersen Garry E. (La Crosse) Linnert Peter J. (La Crosse WI). Piston unloader arrangement for screw compressors. USP1993045203685.
  26. Zeno Robert V. (Farmington Hills MI) Lutz George A. (Ann Arbor MI) Amin Jayendra J. (Canton MI). Pressure responsive safety control for refrigerant compressor. USP1984084463573.
  27. Kobayashi Hisao (Kariya JPX). Refrigerant compressor protecting device. USP1981054265091.
  28. Kono Hiroya (Kariya JPX) Hasegawa Jun (Kariya JPX) Inagaki Mitsukane (Anjyo JPX) Kobayashi Hisao (Kariya all of JPX). Refrigerant compressor protecting device. USP1982054328678.
  29. Branz Michael A. (Dunwoody GA) Renuad Paul F. (Conyers GA). Refrigeration monitor and alarm system. USP1986094612775.
  30. Kocher Erich J. (Milwaukee WI). Rotary screw gas compressor having dual slide valves. USP1986094610612.
  31. Tischer James C. (La Crescent MN). Rotor anti-reverse rotation arrangement in a screw compressor. USP1988084762469.
  32. Dewhirst Randy E. (Onalaska WI). Screw compressor bearing arrangement with positive stop to accommodate thrust reversal. USP1988034730995.
  33. Lakowske Rodney L. (La Crosse WI). Screw compressor mechanical oil shutoff arrangement. USP1993045201648.
  34. Butterworth Arthur L. (La Crosse WI). Screw compressor with integral oil cooling. USP1988104780061.
  35. Orlando Salvatore (South Windsor CT) Martin David R. (Torrington CT). Simplified unloader indicator for helical screw rotary compressor. USP1985084536130.

이 특허를 인용한 특허 피인용횟수: 25

  1. Lin, Zhiyong; Dolcich, Benedict J.; Judge, John F.. Apparatus and method for subcooling control based on superheat setpoint control. USP20190110174977.
  2. Scaringe, Robert P.; Cole, Gregory S.; Lambert, Daniel; Staples, Daniel. Apparatus for crankcase pressure regulation using only ambient air or coolant temperature. USP2015069050360.
  3. Patel, Tejendra; Ernst, Jeffrey; Schroder, Bruce R.; DeRoy, Robert M.; Coussey, Kokjovi. Control algorithm for electronic expansion valve modulation. USP20190410254026.
  4. Jessen, Lars Mou. Controller and a method for controlling an expansion valve of a refrigeration system. USP2005026854285.
  5. Higgins, Robert. Demand flow pumping. USP2012098275483.
  6. Higgins, Robert. Demand flow pumping. USP2014028660704.
  7. Higgins, Robert; McMasters, Brendan. Device and method for optimization of chilled water plant system operation. USP2014078774978.
  8. Douglas, Jonathan David. Expansion valve control system and method for air conditioning apparatus. USP2012048151583.
  9. Mercer, Kevin B.; Edens, John R.; Douglas, Jonathan David. Expansion valve control system and method for air conditioning apparatus. USP2014118887518.
  10. De Larminat, Paul; Le Cointe, Luc; Judge, John Francis; Kulankara, Satheesh. Falling film evaporator. USP2010127849710.
  11. De Larminat, Paul; Le Cointe, Luc; Kulankara, Satheesh. Falling film evaporator. USP2014028650905.
  12. Dingel, Benjamin E.; Larson, James W.. Flow distributor and baffle system for a falling film evaporator. USP2005036868695.
  13. de Larminat, Paul; Schreiber, Jeb; Kohler, Jay A.; Hansen, John C.; Yanik, Mustafa Kemal; McQuade, William F.; Kauffman, Justin; Poulsen, Soren Bierre; Wang, Lee Li; Kulankara, Satheesh. Heat exchanger. USP2014108863551.
  14. de Larminat, Paul; Schreiber, Jeb; Kohler, Jay A.; Hansen, John C.; Yanik, Mustafa Kemal; McQuade, William F.; Kauffman, Justin; Poulsen, Soren Bierre; Wang, Lee Li; Kulankara, Satheesh. Heat exchanger. USP2012118302426.
  15. Preston, Philip K.; Emms, Phil A.. Low-noise fan control for refrigeration cycle. USP2013028375733.
  16. Pham Ba-Tung,FRX ; Pascal Cretin,FRX. Method for controlling an electronic expansion valve based on cooler pinch and discharge superheat. USP2001116318101.
  17. Michel Karol Grabon FR. Method for controlling variable speed drive with chiller equipped with multiple compressors. USP2002046370888.
  18. Grove, Bradley D.. Modular adjustable nozzle and distributor assembly for a refrigeration system. USP2005056898945.
  19. Higgins, Robert. Qualification system and method for chilled water plant operations. USP2013048417392.
  20. VanderZee, Joel C.. Superheat control by pressure ratio. USP2012018096141.
  21. McCormick, Daniel Keir; McQuade, William Fred. Two-zone fuzzy logic liquid level control. USP2009117621141.
  22. McCormick, Daniel Keir; McQuade, William Fred. Two-zone fuzzy logic liquid level control. USP2010087784295.
  23. Schreiber, Jeb W; Kauffman, Justin P; Oskamroux, Michel. Vapor compression system. USP20190210209013.
  24. Schreiber, Jeb; Kohler, Jay A.; De Larminat, Paul; Yanik, Mustafa Kemal; McQuade, William F.; Kauffman, Justin; Poulsen, Soren Bierre; Wang, Lee Li; Kulankara, Satheesh. Vapor compression system. USP2016059347715.
  25. Okoren, Ronald W.; VanderZee, Joel C.. Variable evaporator water flow compensation for leaving water temperature control. USP2012038132420.

이 특허와 함께 이용한 콘텐츠

IPC 상위 출원인