$\require{mediawiki-texvc}$
  • 검색어에 아래의 연산자를 사용하시면 더 정확한 검색결과를 얻을 수 있습니다.
  • 검색연산자
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"

특허 상세정보

System and method for detecting decreased performance in a refrigeration system

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G01K-013/00   
미국특허분류(USC) 062/129; 062/149
출원번호 US-0926155 (2004-08-25)
등록번호 US-8109104 (2012-02-07)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    McNees Wallace & Nurick LLC
인용정보 피인용 횟수 : 2  인용 특허 : 24
초록

Systems and methods are provided for detecting performance degradation in a refrigeration system. Specifically, the present invention provides systems and methods for detecting, at a very early stage, a low refrigerant charge and degradation in condenser performance of a refrigeration system.

대표
청구항

1. A method of detecting performance degradation in a refrigeration system, the method comprising: initializing the refrigeration system by operating the refrigeration system with a full refrigerant charge at specific operating conditions, the specific operating conditions including a plurality of loads and a plurality of ambient conditions;measuring initialization data relating to a plurality of operational parameters of the refrigeration system during the initialization of the refrigeration system;storing the measured initialization data at the specifi...

이 특허에 인용된 특허 (24)

  1. Beatty Scott. Air conditioner pressure status meter and warning device. USP2001076257005.
  2. Wycoff Lyman W. (827 Haymount Dr. Indianapolis IN 46241). Apparatus and method for low refrigerant detection. USP1991095044168.
  3. Beaverson David W. (Bowling Green OH) Clay David A. (Perrysburg OH). Apparatus and method for monitoring refrigeration system. USP1992015079930.
  4. Scoccia Ardeean (Amherst NY). Apparatus and method for providing low refrigerant charge detection. USP1996015481884.
  5. McMullin Larry D. (807 Arlington Rd. Park Hills KY 41001). Chiller monitoring system. USP1992015083438.
  6. Porter Kevin J. ; Malone Garret J. ; Dobmeier Thomas J.. Control algorithm for maintenance of discharge pressure. USP2001016170277.
  7. Kornrumpf, William P.; Laughton, William J.. Control apparatus and methods, heat transfer systems and apparatus and methods for controlling such systems and for sensing and indicating low fluid charge conditions therein. USP1985124561261.
  8. Powell James W. (Guilford CT). Control system for an air conditioning/refrigeration system. USP1994085335507.
  9. Mathur Anoop K. (Shoreview MN). Determining the coefficient of performance of a refrigeration system. USP1988094768346.
  10. Bahel Vijay (Sidney OH) Millet Hank (Piqua OH) Hickey Mickey (Sidney OH) Pham Hung (Dayton OH) Herroon Gregory P. (Piqua OH) Greschl Gerald L. (Dayton OH). Diagnostics for a heating and cooling system. USP1997045623834.
  11. Oswalt Philip D. ; Wash Steven E. ; Wolfe Ronald A.. Display method and apparatus for load and capacity for chillers. USP1998065761916.
  12. Cantley Robert J. (905 Versailles Ct. Maitland FL 32751). Energy management system for refrigeration systems. USP1982044325223.
  13. Ozawa Yoshio (Hirakata JPX) Yasuda Masashi (Neyagawa JPX) Kurogi Yasuharu (Hirakata JPX) Mizukami Kazuaki (Hirakata JPX) Suzuki Hiroyuki (Osaka JPX) Furukawa Masahiro (Ora-gun JPX) Kamada Yasushi (Or. Failure diagnosing system for absorption chillers. USP1997045623426.
  14. Bessler Warren F. (Schenectady NY). Low refrigerant charge detection by monitoring thermal expansion valve oscillation. USP1994045301514.
  15. Blair John H. (Westland MI) Dolinski Norman H. (Grosse Pointe Woods MI) Dage Gerhard A. (Franklin MI) Peck George E. (Dearborn MI) Koberstein Manfred (Warren MI) Matteson Robert W. (Ann Arbor MI). Low refrigerant charge detection system. USP1995105457965.
  16. Bessler Warren F. (Schenectady NY). Low refrigerant charge detection using a combined pressure/temperature sensor. USP1996125586445.
  17. Roy M. Yabuki ; Derek Y. Kamemoto ; Virender Jain ; Richard L. Kenyon. Method and apparatus for detecting low refrigerant charge. USP2002106460354.
  18. Grabon Michel Karol,FRX ; Said Wahl,FRX. Method and apparatus for indicating condenser coil performance on air-cooled chillers. USP2001086272868.
  19. Bathla Pritam S.. Method and device to detect the charge level in air conditioning systems. USP1999115987903.
  20. Iida Tadasato (Shizuoka JPX) Takahashi Fusakichi (Shizuoka JPX) Wada Kouji (Shizuoka JPX) Nigo Toshiro (Shizuoka JPX). Portable type air conditioning apparatus. USP1992035099652.
  21. Salzer Werner (Wendlingen DEX) Wieszt Herbert (Bblingen DEX). Process for monitoring the coolant level in a cooling system. USP1993085239865.
  22. Kamemoto Derek Y.. Refrigerant monitoring apparatus and method. USP2001096293114.
  23. MacArthur J. Ward (Minneapolis MN) Radomski James V. (Minneapolis MN). Specific coefficient of performance measuring device. USP1985044510576.
  24. Thatcher ; Jr. William Bradford. Systems and methods for controlling refrigerant charge. USP2001046209338.