Passive organic working fluid ejector refrigeration method
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United States of America Patent
Stats
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Dec 12, 2017
Issued Date -
N/A
app pub date -
Oct 4, 2015
filing date -
Oct 15, 2013
priority date (Note) -
In Force
status (Latency Note)
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Abstract
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.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
UNIV SHANGHAI JIAOTONG | AT 800 DONGCHUAN RD MINHANG DISTRICT SHANGHAI 200240 |
International Classification(s)

- 2015 Application Filing Year
- F01K Class
- 353 Applications Filed
- 273 Patents Issued To-Date
- 77.34 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Lv, Xiaojing | Shanghai, CN | 5 | 58 |
# of filed Patents : 5 Total Citations : 58 | |||
Tang, Lei | Shanghai, CN | 112 | 1046 |
# of filed Patents : 112 Total Citations : 1046 | |||
Wang, Yuzhang | Shanghai, CN | 3 | 9 |
# of filed Patents : 3 Total Citations : 9 | |||
Weng, Yiwu | Shanghai, CN | 3 | 55 |
# of filed Patents : 3 Total Citations : 55 | |||
Yang, Ping | Shanghai, CN | 152 | 2194 |
# of filed Patents : 152 Total Citations : 2194 | |||
Zhang, Qianqian | Shanghai, CN | 44 | 24 |
# of filed Patents : 44 Total Citations : 24 |
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Patent Citation Ranking
- 0 Citation Count
- F01K Class
- 0 % this patent is cited more than
- 8 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jun 12, 2025 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jun 12, 2029 |
Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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Legal Events
Date | Code | Event | Description |
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Apr 04, 2022 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
Apr 04, 2022 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Feb 27, 2022 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Feb 27, 2022 |
Oct 18, 2021 | FEPP | FEE PAYMENT PROCEDURE | free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
Feb 27, 2018 | I | Issuance | |
Feb 07, 2018 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Jan 16, 2018 | AS | ASSIGNMENT | free format text: NUNC PRO TUNC ASSIGNMENT;ASSIGNORS:HOLLINS, JAMIE LEE;HOLLINS, JONATHON GALE;CIANCIUSI, RENATO;AND OTHERS;SIGNING DATES FROM 20150401 TO 20160824;REEL/FRAME:044628/0837 Owner name: SPORT TESTING INC., CANADA |
Aug 04, 2016 | P | Published | |
Jan 30, 2015 | F | Filing |

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