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특허 상세정보

Compressor crankcase heater control

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F25B-043/02   
미국특허분류(USC) 62/192 ; 62/472
출원번호 US-0805775 (1991-12-12)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 19  인용 특허 : 0
초록

A crankcase heater control system for a refrigeration system includes a first temperature sensor for sensing the outdoor temperature, and, a second temperature sensor for sensing compressor discharge temperature. A controller is operatively connected to temperature sensors and the crankcase heater. When the ambient temperature falls below a first pre-determined temperature the controller compares the compressor discharge temperature to a second pre-determined temperature which is greater than the first pre-determined temperature and energizes the crankca...

대표
청구항

In a refrigeration system serially including a hermetic compressor having a crankcase heater, an outdoor coil, an expansion device, and an indoor coil, crankcase heater control means comprising: first temperature sensing means for sensing a temperature indicative of outdoor temperature; second temperature sensing means for sensing a temperature indicative of compressor temperature; controller means operatively connected to said first and second temperature sensing means, and, said crankcase heater, for comparing said temperature sensed by said first sens...

이 특허를 인용한 특허 피인용횟수: 19

  1. Sakai, Tatsunori; Aoki, Masanori; Shiba, Hirokuni. Air conditioner. USP2016039291379.
  2. Wakuta, Naoki; Kato, Yohei; Matsushita, Shinya; Omori, Takanori; Shiba, Hirokuni. Air-conditioning apparatus. USP2014058720212.
  3. Pham, Hung. Compressor crankcase heating control systems and methods. USP2015119181939.
  4. Pham, Hung. Compressor crankcase heating control systems and methods. USP2017129851135.
  5. Ramayya, George J.. Compressor crankcase heating control systems and methods. USP2017119810468.
  6. Ramayya, George J.. Compressor crankcase heating control systems and methods. USP2018019879894.
  7. Ramayya, George J.. Compressor crankcase heating control systems and methods. USP2016059353738.
  8. Pham, Hung M.. Compressor with flooded start control. USP20180910066617.
  9. McSweeney, Daniel L.; Green, Charles E.; Seibel, Stephen M.. Crankcase heater systems and methods for variable speed compressors. USP2017119810218.
  10. McSweeney, Daniel L.; Green, Charles E.; Seibel, Stephen M.. Crankcase heater systems and methods for variable speed compressors. USP2014058734125.
  11. Tolbert, Jr., John W.. Hermetic crankcase heater. USP2013038388318.
  12. Daugherty, III, William David. Increasing component life in a variable speed drive with stator heating. USP20181110128788.
  13. Russ Tipton. Method and apparatus for maintaining compressor discharge vapor volume for starting with condensing unit ambient temperatures less than evaporator unit ambient temperatures. USP2002126490882.
  14. Fraser, Eric B.; Bielskus, Algirdas; Daddis, Jr., Eugene Duane; Tetu, Lee G.. Method of operating an air conditioning system including reducing the energy consumed by the compressor crank case heaters. USP2018029903627.
  15. Waller, Barry Granville. Oil management system for a compressor. USP2017019551357.
  16. de Larminat, Paul Marie; Levesque, Roger Marc. Pressure control for refrigerant system. USP20181110132542.
  17. Shimoda, Junichi; Kinoshita, Hidehiko. Refrigeration apparatus. USP2014088806876.
  18. Saikusa, Tetsuji; Odagi, Hiroyuki; Tanaka, Naoki. Refrigeration cycle. USP2003126668564.
  19. Bailey, John J.; Balderrama, Jose L.; Douglas, Jonathan D; Edens, John R.; Marble, Alan D.; Sapp, Gary L.; Schaefer, Kristen L.; Schneider, Brett R.; Tice, Steven A.. System and method for sump heater control in an HVAC system. USP2012028116911.