Passive organic working fluid ejector refrigeration method

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United States of America Patent

PATENT NO 9841214
SERIAL NO

14874432

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Abstract

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The present invention relates to a passive type organic working fluid ejector refrigeration method. The liquid organic working fluid of the reservoir is added to evaporator using gravity. Then the refrigerant absorbs heat during evaporation in the evaporator. When the refrigerant temperature and pressure increases to a certain value, the self-operated pressure regulator valve automatically opens and the ejector begins to work. After condensing in the condenser, the working fluid divided into two streams. One stream returns to the reservoir and the other one flows into the cooling evaporator of refrigeration cycle to produce chilled water about 12° C. When the liquid refrigerant is completely evaporated in the evaporator, the self-operated pressure regulator valve opens and the working fluid flows into the evaporator from the reservoir. A certain quality of the working fluid is closed in the evaporator, preparing for a new work cycle as above-mentioned. The system of the present invention can use organic fluid as the working fluid to utilize the low-temperature heat sources range from 60 to 200° C., using groundwater, river (sea) water or air as cold source and using gravity to transport liquid working fluid.

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Patent Owner(s)

Patent OwnerAddress
UNIV SHANGHAI JIAOTONGAT 800 DONGCHUAN RD MINHANG DISTRICT SHANGHAI 200240

International Classification(s)

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  • 2015 Application Filing Year
  • F01K Class
  • 353 Applications Filed
  • 273 Patents Issued To-Date
  • 77.34 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances201520162017201820192020202120220255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lv, Xiaojing Shanghai, CN 5 58
Tang, Lei Shanghai, CN 112 1046
Wang, Yuzhang Shanghai, CN 3 9
Weng, Yiwu Shanghai, CN 3 55
Yang, Ping Shanghai, CN 152 2194
Zhang, Qianqian Shanghai, CN 44 24

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Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges2051901 - 1011 - 2002.557.51012.51517.52022.52527.53032.53537.54042.54547.55052.555

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