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특허 상세정보

Steady state operation of a refrigeration system to achieve optimum capacity

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F25B-041/04   
미국특허분류(USC) 622/17 ; 621/963 ; 622/00 ; 622/283 ; 622/285 ; 625/13 ; 236/001E
출원번호 US-0212752 (1998-12-16)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Carlson, Gaskey & Olds
인용정보 피인용 횟수 : 24  인용 특허 : 11

A method of operating a refrigeration system in steady state operation drives the refrigerant system to the lowest capacity state which is still able to maintain operation within acceptable pressure and temperature limits. Generally, the system seeks to minimize the on and off compressor cycling. The lowest capacity state is achieved by throttling the compressor suction and by staging down the compressor operation from economized to normal and to unloaded mode while assuring that desired box temperature is maintained. Safety methods are incorporated into...


[ What is claimed is:] [1.] A method of operating a compressor in a cooling system in steady state operation comprising the steps of:(1) monitoring the temperature within a container and comparing it to a target temperature, and entering steady state operation once the two temperatures are within a predetermined range of each other;(2) monitoring operation of the cooling system once in steady state operation, and continuing to move to lower capacity operation while monitoring temperature, with a logic designed to have a plurality of modes and which moves...

이 특허에 인용된 특허 (11)

  1. Brandemuehl Michael J. (Manlius NY) Reason John R. (Liverpool NY). Control apparatus for refrigerated cargo container. USP1988124789025.
  2. Brandemuehl Michael J. (Manlius NY) Reason John R. (Liverpool NY). Control apparatus for refrigerated cargo container. USP1989104875341.
  3. Goubeaux Ronald J. (Lockport NY) Spurney Joseph L. (Rochester NY). Control method for a variable displacement air conditioning system compressor. USP1991065022234.
  4. Lee Joseph H. ; Johnsen Martin O.. Discharge pressure control system for transport refrigeration unit using suction modulation. USP1999065907957.
  5. Heinrichs Anton D. (Ransomville NY) Narreau Peter P. (Pennellville NY). Economizer control for two-stage compressor systems. USP1996125582022.
  6. Jackson Robert J. ; Champoux Robert L.. Integrated controller for commercial vehicle air conditioning system. USP1998065761918.
  7. Hanson Jay L. (Bloomington MN) Herrig Doyle G. (Elko MN). Rate of change temperature control for transport refrigeration systems. USP1990024903502.
  8. Okamoto Hiroshi (Fuji JPX) Fushimi Kimio (Shimizu JPX) Suzuki Susumu (Numazu JPX). Refrigerating apparatus and control method thereof. USP1989014798057.
  9. Hanson Jay L. (Bloomington MN). Refrigeration system having a modulation valve which also performs function of compressor throttling valve. USP1990124977751.
  10. Hanson Jay L. (Bloomington MN). Temperature controller for a transport refrigeration system. USP1989044819441.
  11. Berge Jeffrey B. (Bloomington MN) Seshadri Jayaram (Minneapolis MN) Hanson Jay L. (Bloomington MN). Transport refrigeration system with improved temperature and humidity control. USP1990024899549.

이 특허를 인용한 특허 피인용횟수: 24

  1. Kim, Young Ho; Ryu, Shin Hee. Air conditioning system with low compression load. USP2003116640567.
  2. Igor Vaisman CA. Capacity control of refrigeration systems. USP2002056385981.
  3. Lifson, Alexander; Dobmeier, Thomas J.; Taras, Michael F.. Combined expansion device and four-way reversing valve in economized heat pumps. USP2005056892553.
  4. Barito Thomas. Compressor economizer circuit with check valve. USP2001036202438.
  5. Lifson, Alexander. Compressor with unloader valve between economizer line and evaporator inlet. USP2005046883341.
  6. Loprete, Joe Frank; Monk, David Turner; Chumley, Eugene Karl; Simerly, Tyrone Scott; Narney, II, John K.; Trent, Mark Randall; Hatzikazakis, Panteleimon V.; Goodnight, Tom Evans; Xin, Rongchang; Doug. Compressors for providing automatic capacity modulation and heat exchanging system including the same. USP2003126663358.
  7. Lifson,Alexander; Taras,Michael F.. Controlling a voltage-to-frequency ratio for a variable speed drive in refrigerant systems. USP2009017481069.
  8. Jin, Keum Su. Heat pump apparatus. USP2003126668569.
  9. Zugibe, Kevin; Schmidt, Douglas. Method and apparatus for measuring and improving efficiency in refrigeration systems. USP20180810041713.
  10. Alexander Lifson. Method and apparatus for the control of economizer circuit flow for optimum performance. USP2002116474087.
  11. Lee, Won Hee. Method for operating air conditioner in warming mode. USP2003126669102.
  12. Eliot W. Dudley. Method of controlling refrigerant cycle with sealed suction pressure sensor. USP2002036357241.
  13. Taras, Michael F.; Lifson, Alexander. Refrigerant system with variable speed compressor and reheat function. USP2013048418486.
  14. Esslinger,Steve. Refrigeration system including a side-load sub-cooler. USP2009017475565.
  15. Freund, Peter W.; Sjoholm, Lars I.. Refrigeration unit apparatus and method. USP2004046718781.
  16. Lifson, Alexander; Taras, Michael F.. Restriction in vapor injection line. USP2014038661846.
  17. Sienel,Tobias H.. Supercritical pressure regulation of economized refrigeration system by use of an interstage accumulator. USP2008097424807.
  18. Bean, Jr., John H.; Dong, Zhihai Gordon. Systems and methods for computer room air conditioning. USP2017129845977.
  19. Pearson, Stephen Forbes. Transcritical refrigeration cycle. USP2010127845190.
  20. Burchill,Jeffrey John; Pletl,John. Transport Refrigeration system. USP2006057043927.
  21. Senf, Jr., Raymond L.; Reason, John R.. Transport refrigeration system and methods for same to address dynamic conditions. USP20181010107536.
  22. Lifson, Alexander; Taras, Michael F.; Fraser, Jr., Howard H.. Vapor compression system. USP2005106955059.
  23. Lifson, Alexander; Taras, Michael F.. Vapor compression system with bypass/economizer circuits. USP2005096938438.
  24. Itoh,Satoshi; Homan,Toshinobu; Kitamura,Keiichi. Vehicle air conditioning system. USP2006107121103.