US3496735A - Ejector in refrigerating device - Google Patents

Ejector in refrigerating device Download PDF

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Publication number
US3496735A
US3496735A US742624A US3496735DA US3496735A US 3496735 A US3496735 A US 3496735A US 742624 A US742624 A US 742624A US 3496735D A US3496735D A US 3496735DA US 3496735 A US3496735 A US 3496735A
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United States
Prior art keywords
ejector
jet tube
medium
flow
pressure
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Expired - Lifetime
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US742624A
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English (en)
Inventor
Jan Haisma
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US Philips Corp
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US Philips Corp
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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
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
    • F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
    • F25J1/0257—Construction and layout of liquefaction equipments, e.g. valves, machines
    • F25J1/0275—Construction and layout of liquefaction equipments, e.g. valves, machines adapted for special use of the liquefaction unit, e.g. portable or transportable devices
    • F25J1/0276—Laboratory or other miniature devices
    • 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
    • F25B1/10—Compression machines, plants or systems with non-reversible cycle with multi-stage compression
    • 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
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/08—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using ejectors
    • 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
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/003—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production
    • F25J1/0047—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using an "external" refrigerant stream in a closed vapor compression cycle
    • F25J1/0052—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using an "external" refrigerant stream in a closed vapor compression cycle by vaporising a liquid refrigerant stream
    • 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
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/006—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the refrigerant fluid used
    • F25J1/0062—Light or noble gases, mixtures thereof
    • F25J1/0065—Helium
    • 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
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
    • F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
    • F25J1/0257—Construction and layout of liquefaction equipments, e.g. valves, machines
    • 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
    • F25B2341/00—Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves
    • F25B2341/001—Ejectors not being used as compression device
    • F25B2341/0012—Ejectors with the cooled primary flow at high pressure
    • 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
    • F25B2341/00—Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves
    • F25B2341/001—Ejectors not being used as compression device
    • F25B2341/0013—Ejector control arrangements
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/01—Geometry problems, e.g. for reducing size
    • 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
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2270/00—Refrigeration techniques used
    • F25J2270/90—External refrigeration, e.g. conventional closed-loop mechanical refrigeration unit using Freon or NH3, unspecified external refrigeration
    • F25J2270/912—Liquefaction cycle of a low-boiling (feed) gas in a cryocooler, i.e. in a closed-loop refrigerator

Definitions

  • An ejector for use in a device for producing cold the device having a compressed medium cooled and then expanded through the ejector to a first reservoir which communicates through a choke to a second reservoir; by the flow through the ejector the suction side of the ejector draws medium from the second reservoir, the suction pressure being varied by a cone-shaped control pin axially displaceable in the jet tube portion of the ejector nozzle to provide ultra-sonic flow of the medium therethrough.
  • the invention relates to an ejector particularly suitable for use in a device for producing cold and/or for liquefying gases.
  • a device comprises a high-pressure medium supply communicating through one or more heat exchangers in which said medium is cooled to below th inversion temperature associated with said pressure with the jet tube of the ejector; the suction side of the ejector communicates with a minimum pressure reservoir which communicates through a choking cock and, as the case may be, through a further reservoir with the ejector outlet, while with this outlet or with the further reservoir communicates an outlet duct;
  • the jet tube of the ejector includes an axially displaceable control-pin and the jet tube and the control-pin have a conical shape with the same apex at least over the portion lying foremost in the direction of flow.
  • an ejector is to be understood to mean a device in which the potential energy of a high-pressure (primary) medium is converted wholly or partly into kinetic energy which is utilized at least partly for raising the pressure of a secondary medium.
  • ejectors are particularly suitable for use in cold producing devices of the kind set forth.
  • the advantage is that by drawing off the vapour from the minimum pressure reservoir the cold can be supplied in this reservoir at 'very low temperatures.
  • the medium pressure in the outlet is then considerably higher than that in the minimum pressure reservoir so that, when this medium is caused to exchange heat with the incoming high-pressure medium, the passages for this medium in the heat exchangers concerned, need not be extremely large, while the compression device which again raises the pressure of the medium conducted away is capable of operating with a compression ratio which is considerably lower than the ratio between the pressure of the compressed medium and the vapour pressure in the minimum-pressure reservoir.
  • the minimum-pressure reservoir In order to provide cold at very low temperatures the minimum-pressure reservoir has to be drawn off to very low pressures. If, for example, helium is used as a me dium, and it cold has to be produced at 42 K., the pressure has to be reduced to 1 ata.; at a value of 3.6 K. the reduction has to go to 0.5 ata., and a cold production at, for example, 1.75 K. requires a reduction to 0.0015 ata. Inorder to attain these low suction pressures the velocity of the flow out of the end of the jet tube has to be very high.
  • the first portion of the jet tube has to have a passage narrowing in the direction of flow, whereas the second portion (expansion portion) has to have a communicating widening passage.
  • the invention has for its object to provide an ejector having both a variable passage and an ultrasonic shape, while with any passing flow of the medium the velocity of the medium both in the narrowing portion of the passage and in the widening portion of the passage is invariably at the optimum.
  • the ejector according to the invention is characterized in that over the portion of the jet tube lying downstream viewed in the direction of flow, either the wall of the jet tube or the wall of the control-pin deviates outwardly or inwardly respectively from the conical shape of the first portion so that the annular passage between the jet tube and the control-pin widens in the direction of flow.
  • the widening of the passage of the channel according to the invention is obtained by having either the wall of the jet tube or the wall of the control-pin deviate from the conical surface of the first portion of said elements, the degree of expansion required for an optimum ultrasonic flow of the passage medium does not vary substantially. In this way the ejector can invariably operate at the optimum, so that cold can always be supplied at the same very low temperature, practically independently of the medium flow.
  • FIG. 1 shows by Way of example, schematically and not to scale, a device for producing cold at low temperature, in which the expansion is performed in a variable ultrasonic ejector.
  • FIGS. 2 and 3 show schematically on an enlarged scale two embodiments of the jet tube of the ejector used in the device shown in FIG. 1.
  • reference numeral 1 designates a compressor.
  • the outlet 2 thereof communicates with a supply duct 3 for high-pressure medium.
  • This supply duct includes a plurality of heat exchanges 4, 5 and 6, in which the high-pressure medium exchanges heat with expanded medium, and a plurality of heat exchangers 7, 8, in which the medium is cooled by means of cold-gas refrigerators 9 and 10.
  • the cold-gas refrigerators may be replaced by other cooling aggregates.
  • After having passed through the various heat exchangers the medium has cooled to a low temperature and is fed to an ejector 11, in which it expands.
  • the expanded medium flows through the duct 12 to the reservoir 13.
  • An outlet duct 14 from the vapour space of the reservoir 13 communicates through the heat exchanges 6, 5 and 4 with the inlet 15 of the compressor 1.
  • a duct 16 including a choking cock 17 communicates with the minimum-pressure reservoir 18.
  • the vapour space of the reservoir 18 communicates through a duct 19 with the suction side of the ejector 11.
  • the potential energy of the high-pressure medium in the jet tube 20 is converted into kinetic energy, which is then utilized for drawing off the vapour from the reservoir 18 and raising the pressure thereof in a ditfusor 21.
  • a high velocity of the outward flow at the end of the jet tube 20 is required.
  • the jet tube 20 has an ultrasonic shape, which means that over the first portion the passage narrows normally and over the second portion the passage widens in accordance with the local requirements for the ultrasonic flow.
  • the jet tube 20 includes a control-pin 22, which can be inserted into the jet tube over a greater or lesser extent.
  • a control-pin 22 is conical throughout its length.
  • the first portion 23 of the jet tube has the shape of a truncated cone, the apex being equal to that of the control-pin 22.
  • the second portion 24 of the jet tube deviates outwardly from the conical shape so that the annular channel widens over this portion in the direction of flow to an extent such that an ultrasonic flow of the medium is obtained.
  • the flow channel widens so that the medium expands.
  • at least substantially the same conditions should prevail for any quantity of passing flow, that is to say the same degree of expansion should occur. This is attained by determining the widening of the flow channel by having only one of the boundary walls of the flow channel deviate from the conical shape. In the embodiment shown in FIG. 2 this is the wall of the jet tube. It is thus ensured that with any passing flow the degree of expansion is substantially the same and can be chosen to the optimum.
  • the invention provides an ejector which is controllable and has an ultrasonic shape, while the ultrasonic flow profile of the jet tube and hence the suction pressure do not vary with a variation of the position of the control-pin.
  • a device for producing cold which comprises a high-pressure medium source, a supply duct communicating from the source through at least one heat exchanger (in which this medium is cooled below the inversion temperature associated with said pressure) to the jet tube of an ejector, duct means interconnecting the suction side of the ejector with a minimum-pressure reservoir which communicates through a choking cock and a further reservoirwith the outlet of the ejector, and an outlet duct interconnecting said source and the further reservoir, the improvement in combination therewith, comprising an axially displaceable control-pin disposed within the jet tube of the ejector, the jet tube and the control-pin having conical shapes with the same apex at least over the upstream portion of the jet tube, and in the downstream portion of the jet tube, the annular passage between the jet tube and the control pin widening in the direction flow, by deviation from said conical shape of either the wall of the jet tube outwardly or the wall of the controlpin inwardly.
  • a device as defined in claim 1 wherein said jet tube portion of the ejector has a shape for providing ultrasonic flow therethrough.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Clinical Laboratory Science (AREA)
  • Jet Pumps And Other Pumps (AREA)
US742624A 1967-07-27 1968-07-05 Ejector in refrigerating device Expired - Lifetime US3496735A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6710359A NL6710359A (enrdf_load_stackoverflow) 1967-07-27 1967-07-27

Publications (1)

Publication Number Publication Date
US3496735A true US3496735A (en) 1970-02-24

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Application Number Title Priority Date Filing Date
US742624A Expired - Lifetime US3496735A (en) 1967-07-27 1968-07-05 Ejector in refrigerating device

Country Status (6)

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US (1) US3496735A (enrdf_load_stackoverflow)
BE (1) BE718598A (enrdf_load_stackoverflow)
CH (1) CH483566A (enrdf_load_stackoverflow)
DE (1) DE1703762A1 (enrdf_load_stackoverflow)
FR (1) FR1575202A (enrdf_load_stackoverflow)
NL (1) NL6710359A (enrdf_load_stackoverflow)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3670519A (en) * 1971-02-08 1972-06-20 Borg Warner Capacity control for multiple-phase ejector refrigeration systems
US3701264A (en) * 1971-02-08 1972-10-31 Borg Warner Controls for multiple-phase ejector refrigeration systems
US3828564A (en) * 1970-02-27 1974-08-13 Linde Ag Closed refrigerant cycle for the liquefaction of low-boiling gases
US3910063A (en) * 1973-04-09 1975-10-07 Philips Corp Cooling system
US3932158A (en) * 1973-08-10 1976-01-13 Linde Aktiengesellschaft System for cooling an object with coolant cycle
US4242885A (en) * 1977-12-23 1981-01-06 Sulzer Brothers Limited Apparatus for a refrigeration circuit
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
US5240384A (en) * 1990-10-30 1993-08-31 Gas Research Institute Pulsating ejector refrigeration system
US6438993B2 (en) * 2000-06-01 2002-08-27 Denso Corporation Ejector cycle system
US6477857B2 (en) * 2000-03-15 2002-11-12 Denso Corporation Ejector cycle system with critical refrigerant pressure
US20030167793A1 (en) * 2002-03-08 2003-09-11 Tomoo Honda Vapor-compression type refrigerating machine and heat exchanger therefor
RU2212599C1 (ru) * 2002-08-22 2003-09-20 Кнатько Михаил Васильевич Способ сжижения природного газа
US6729158B2 (en) 2002-02-07 2004-05-04 Denso Corporation Ejector decompression device with throttle controllable nozzle
US20040255610A1 (en) * 2003-06-18 2004-12-23 Haruyuki Nishijima Ejector cycle
US20050011221A1 (en) * 2003-07-18 2005-01-20 Tgk Co., Ltd. Refrigeration cycle
US6966199B2 (en) 2002-07-09 2005-11-22 Denso Corporation Ejector with throttle controllable nozzle and ejector cycle using the same
RU2318167C1 (ru) * 2006-06-19 2008-02-27 Общество с ограниченной ответственностью "ЛУКОЙЛ-ПЕРМЬ" Способ сжижения и сепарации нефтяного попутного газа
CN103776189A (zh) * 2014-01-18 2014-05-07 西安交通大学 用于热泵装置的带喷射器的补气增焓型热泵循环系统
US20170108256A1 (en) * 2014-01-30 2017-04-20 Carrier Corporation Ejectors and Methods of Use

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3906169A1 (de) * 1989-02-28 1990-08-30 Uhde Gmbh Verfahren und vorrichtung zum trennen eines aus einem extraktor kommenden stoffgemisches

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1779009A (en) * 1928-02-15 1930-10-21 Negro Luigo Nozzle
US2000762A (en) * 1933-10-26 1935-05-07 Gen Electric Fluid jet pump
US2000741A (en) * 1933-10-26 1935-05-07 Gen Electric Fluid jet pump
US2352094A (en) * 1942-03-10 1944-06-20 Clayton Manufacturing Co Adjustable injector
US3277660A (en) * 1965-12-13 1966-10-11 Kaye & Co Inc Joseph Multiple-phase ejector refrigeration system
US3360955A (en) * 1965-08-23 1968-01-02 Carroll E. Witter Helium fluid refrigerator

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1779009A (en) * 1928-02-15 1930-10-21 Negro Luigo Nozzle
US2000762A (en) * 1933-10-26 1935-05-07 Gen Electric Fluid jet pump
US2000741A (en) * 1933-10-26 1935-05-07 Gen Electric Fluid jet pump
US2352094A (en) * 1942-03-10 1944-06-20 Clayton Manufacturing Co Adjustable injector
US3360955A (en) * 1965-08-23 1968-01-02 Carroll E. Witter Helium fluid refrigerator
US3277660A (en) * 1965-12-13 1966-10-11 Kaye & Co Inc Joseph Multiple-phase ejector refrigeration system

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3828564A (en) * 1970-02-27 1974-08-13 Linde Ag Closed refrigerant cycle for the liquefaction of low-boiling gases
US3670519A (en) * 1971-02-08 1972-06-20 Borg Warner Capacity control for multiple-phase ejector refrigeration systems
US3701264A (en) * 1971-02-08 1972-10-31 Borg Warner Controls for multiple-phase ejector refrigeration systems
US3910063A (en) * 1973-04-09 1975-10-07 Philips Corp Cooling system
US3932158A (en) * 1973-08-10 1976-01-13 Linde Aktiengesellschaft System for cooling an object with coolant cycle
US4242885A (en) * 1977-12-23 1981-01-06 Sulzer Brothers Limited Apparatus for a refrigeration circuit
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
US5240384A (en) * 1990-10-30 1993-08-31 Gas Research Institute Pulsating ejector refrigeration system
US6574987B2 (en) * 2000-03-15 2003-06-10 Denso Corporation Ejector cycle system with critical refrigerant pressure
US6477857B2 (en) * 2000-03-15 2002-11-12 Denso Corporation Ejector cycle system with critical refrigerant pressure
US6438993B2 (en) * 2000-06-01 2002-08-27 Denso Corporation Ejector cycle system
US6729158B2 (en) 2002-02-07 2004-05-04 Denso Corporation Ejector decompression device with throttle controllable nozzle
US20030167793A1 (en) * 2002-03-08 2003-09-11 Tomoo Honda Vapor-compression type refrigerating machine and heat exchanger therefor
US6966199B2 (en) 2002-07-09 2005-11-22 Denso Corporation Ejector with throttle controllable nozzle and ejector cycle using the same
RU2212599C1 (ru) * 2002-08-22 2003-09-20 Кнатько Михаил Васильевич Способ сжижения природного газа
US7347062B2 (en) * 2003-06-18 2008-03-25 Denso Corporation Ejector cycle
US20040255610A1 (en) * 2003-06-18 2004-12-23 Haruyuki Nishijima Ejector cycle
US20050011221A1 (en) * 2003-07-18 2005-01-20 Tgk Co., Ltd. Refrigeration cycle
US7207186B2 (en) * 2003-07-18 2007-04-24 Tgk Co., Ltd. Refrigeration cycle
RU2318167C1 (ru) * 2006-06-19 2008-02-27 Общество с ограниченной ответственностью "ЛУКОЙЛ-ПЕРМЬ" Способ сжижения и сепарации нефтяного попутного газа
CN103776189A (zh) * 2014-01-18 2014-05-07 西安交通大学 用于热泵装置的带喷射器的补气增焓型热泵循环系统
US20170108256A1 (en) * 2014-01-30 2017-04-20 Carrier Corporation Ejectors and Methods of Use

Also Published As

Publication number Publication date
CH483566A (de) 1969-12-31
DE1703762A1 (de) 1972-02-24
BE718598A (enrdf_load_stackoverflow) 1969-01-27
FR1575202A (enrdf_load_stackoverflow) 1969-07-18
NL6710359A (enrdf_load_stackoverflow) 1969-01-29

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