EP0149413A3 - Method and apparatus for refrigeration - Google Patents

Method and apparatus for refrigeration Download PDF

Info

Publication number
EP0149413A3
EP0149413A3 EP84630223A EP84630223A EP0149413A3 EP 0149413 A3 EP0149413 A3 EP 0149413A3 EP 84630223 A EP84630223 A EP 84630223A EP 84630223 A EP84630223 A EP 84630223A EP 0149413 A3 EP0149413 A3 EP 0149413A3
Authority
EP
European Patent Office
Prior art keywords
vapor
vapor stream
working fluid
evaporator
refrigeration
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP84630223A
Other languages
German (de)
French (fr)
Other versions
EP0149413A2 (en
Inventor
Dori Hershgal
Mordechai Sokolov
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GALIL ADVANCED TECHNOLOGIES Ltd
GALIL ADVANCED Tech Ltd
Original Assignee
GALIL ADVANCED TECHNOLOGIES Ltd
GALIL ADVANCED Tech Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from IL70667A external-priority patent/IL70667A0/en
Priority claimed from IL71093A external-priority patent/IL71093A/en
Application filed by GALIL ADVANCED TECHNOLOGIES Ltd, GALIL ADVANCED Tech Ltd filed Critical GALIL ADVANCED TECHNOLOGIES Ltd
Publication of EP0149413A2 publication Critical patent/EP0149413A2/en
Publication of EP0149413A3 publication Critical patent/EP0149413A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B7/00—Compression machines, plants or systems, with cascade operation, i.e. with two or more circuits, the heat from the condenser of one circuit being absorbed by the evaporator of the next circuit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B1/00—Compression machines, plants or systems with non-reversible cycle
    • F25B1/06—Compression machines, plants or systems with non-reversible cycle with compressor of jet type, e.g. using liquid under pressure
    • F25B1/08—Compression machines, plants or systems with non-reversible cycle with compressor of jet type, e.g. using liquid under pressure using vapour under pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

A method and apparatus are described for refrigeration according to a refrigeration cycle wherein a working fluid is evaporated in a generator (11) at high pressure, the working fluid vapor is expanded and formed into a vapor stream entraining working fluid vapor from an evaporator (13), the vapor stream is condensed to a liquid, a part of the condensed liquid is returned to the generatore (11) for evaporation at high pressure, and another part of the condensed liquid is expanded and passed to the evaporator (13) for entraining in the vapor stream. According to the novel method and apparatus, the entrainment of the vapor in the vapor stream is enhanced by increasing the pressure of the vapor from the evaporator before the vapor is entrained in the vapor stream. This has been found to significantly improve the Coefficient of Performance (C.O.P.) of the refrigeration cycle.
EP84630223A 1984-01-12 1984-12-31 Method and apparatus for refrigeration Withdrawn EP0149413A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
IL70667A IL70667A0 (en) 1984-01-12 1984-01-12 Method and apparatus for refrigeration
IL70667 1984-01-12
IL71093A IL71093A (en) 1984-02-28 1984-02-28 Method and apparatus for refrigeration
IL71093 1984-02-28

Publications (2)

Publication Number Publication Date
EP0149413A2 EP0149413A2 (en) 1985-07-24
EP0149413A3 true EP0149413A3 (en) 1986-02-19

Family

ID=26321249

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84630223A Withdrawn EP0149413A3 (en) 1984-01-12 1984-12-31 Method and apparatus for refrigeration

Country Status (2)

Country Link
EP (1) EP0149413A3 (en)
AU (1) AU3753685A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2305235A (en) * 1995-09-16 1997-04-02 Trevor Ward An ejector device for use in a heat pump
DE19841548C2 (en) * 1998-09-11 2002-03-28 Integral Energietechnik Gmbh refrigeration plant
IL177020A0 (en) * 2006-07-23 2006-12-10 Totec Ltd Top Technologies Absorption cooling system
CN104501450B (en) * 2014-12-16 2016-08-24 山东大学 The both vapor compression of a kind of improvement-injection coupling refrigeration system
CN104501449B (en) * 2014-12-16 2016-08-24 山东大学 Both vapor compression-injection coupling refrigeration the system of supercharging in the middle of a kind of liquid
CN104930741A (en) * 2015-05-29 2015-09-23 浙江工业大学 Novel compression auxiliary jetting refrigerating system with supercooler
CN105423613A (en) * 2015-12-23 2016-03-23 广西大学 Mechanical supercharging type solar ejection refrigerating system and method
CN108224833A (en) 2016-12-21 2018-06-29 开利公司 Injector refrigeration system and its control method
CN111520932B8 (en) 2019-02-02 2023-07-04 开利公司 Heat recovery enhanced refrigeration system
CN111520928B (en) 2019-02-02 2023-10-24 开利公司 Enhanced thermally driven injector cycling

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2494120A (en) * 1947-09-23 1950-01-10 Phillips Petroleum Co Expansion refrigeration system and method
US2658356A (en) * 1951-07-05 1953-11-10 Ultra Mechanisms Inc Jet pump refrigeration system
US2931190A (en) * 1957-05-29 1960-04-05 Coleman Co Jet refrigeration system
US3277660A (en) * 1965-12-13 1966-10-11 Kaye & Co Inc Joseph Multiple-phase ejector refrigeration system
US3869351A (en) * 1973-11-09 1975-03-04 Everett H Schwartzman Evaporation system as for the conversion of salt water
FR2324477A1 (en) * 1975-09-18 1977-04-15 Cuatrecasas Arbos Luis Motor vehicle air conditioning system - has heater with refrigerant passed through ejector and nozzle to operate evaporator by vacuum
US4023946A (en) * 1973-11-09 1977-05-17 Schwartzman Everett H Rectification system for the separation of fluids
DE2745127A1 (en) * 1977-10-07 1979-04-12 Bauer Bernhard Dr Ing Habil Heat pump or refrigeration system - has expansion machine driving compression machine, both using common condenser
DE3035207A1 (en) * 1980-09-18 1982-04-29 Fried. Krupp Gmbh, 4300 Essen Heat pump incorporates hot liq. jet pump - as compressor in conjunction with superheater
US4438633A (en) * 1982-11-12 1984-03-27 Hiser Leland L Method and apparatus for using low grade thermal energy to improve efficiency of air conditioning and refrigeration systems

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2494120A (en) * 1947-09-23 1950-01-10 Phillips Petroleum Co Expansion refrigeration system and method
US2658356A (en) * 1951-07-05 1953-11-10 Ultra Mechanisms Inc Jet pump refrigeration system
US2931190A (en) * 1957-05-29 1960-04-05 Coleman Co Jet refrigeration system
US3277660A (en) * 1965-12-13 1966-10-11 Kaye & Co Inc Joseph Multiple-phase ejector refrigeration system
US3869351A (en) * 1973-11-09 1975-03-04 Everett H Schwartzman Evaporation system as for the conversion of salt water
US4023946A (en) * 1973-11-09 1977-05-17 Schwartzman Everett H Rectification system for the separation of fluids
FR2324477A1 (en) * 1975-09-18 1977-04-15 Cuatrecasas Arbos Luis Motor vehicle air conditioning system - has heater with refrigerant passed through ejector and nozzle to operate evaporator by vacuum
DE2745127A1 (en) * 1977-10-07 1979-04-12 Bauer Bernhard Dr Ing Habil Heat pump or refrigeration system - has expansion machine driving compression machine, both using common condenser
DE3035207A1 (en) * 1980-09-18 1982-04-29 Fried. Krupp Gmbh, 4300 Essen Heat pump incorporates hot liq. jet pump - as compressor in conjunction with superheater
US4438633A (en) * 1982-11-12 1984-03-27 Hiser Leland L Method and apparatus for using low grade thermal energy to improve efficiency of air conditioning and refrigeration systems

Also Published As

Publication number Publication date
EP0149413A2 (en) 1985-07-24
AU3753685A (en) 1985-07-18

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Inventor name: SOKOLOV, MORDECHAI

Inventor name: HERSHGAL, DORI