EP0541324A1 - Kälteanlagen - Google Patents

Kälteanlagen Download PDF

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Publication number
EP0541324A1
EP0541324A1 EP92310044A EP92310044A EP0541324A1 EP 0541324 A1 EP0541324 A1 EP 0541324A1 EP 92310044 A EP92310044 A EP 92310044A EP 92310044 A EP92310044 A EP 92310044A EP 0541324 A1 EP0541324 A1 EP 0541324A1
Authority
EP
European Patent Office
Prior art keywords
refrigerant
evaporator
fresh food
freezer
compressor
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Withdrawn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
EP92310044A
Other languages
English (en)
French (fr)
Inventor
Leroy John Herbst
Dwight William Jacobus
Willard Eugene Payton
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.)
General Electric Co
Original Assignee
General Electric Co
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
Application filed by General Electric Co filed Critical General Electric Co
Publication of EP0541324A1 publication Critical patent/EP0541324A1/de
Withdrawn legal-status Critical Current

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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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
    • F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
    • 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
    • F25B40/00—Subcoolers, desuperheaters or superheaters
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • F25D11/022—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures with two or more evaporators
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/05—Compression system with heat exchange between particular parts of the system
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/13—Economisers
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/23—Separators
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/04—Refrigerators with a horizontal mullion

Definitions

  • the present invention relates generrally to refrigeration systems and, for example to household refrigerators.
  • a typical present day household refrigerator includes a refrigeration system which circulates refrigerant continuously through a closed circuit including a compressor, a condenser, an expansion device (normally in the form of a capillary tube), and an evaporator back to the compressor.
  • the refrigerant is a two-phase material having a liquid phase and a vapor phase.
  • the refrigeration system operates to cause the refrigerant to repeatedly change from a liquid to a vapor and back to a liquid to transfer energy from inside the refrigerator by removing heat from the refrigeration compartments and expelling it to the atmosphere outside the refrigerator.
  • the evaporator In a typical refrigerator the evaporator is mounted in the freezer and a fan blows air across the evaporator with the air stream being split so that most of it circulates within the freezer but a portion of it is diverted to circulate through the fresh food compartment.
  • the freezer typically is maintained between -10°F and +15°F while the fresh food compartment is maintained between +33°F and +47°F.
  • Such refrigerators do not operate at maximum possible efficiency as the refrigeration cycle produces its refrigeration effect at a temperature which is appropriate for the freezer, but is lower than is required to maintain the fresh food compartment at its appropriate temperature.
  • the mechanical energy required to produce cooling at lower temperatures is greater than that required to produce cooling at higher temperatures and thus the typical simple vapor compression cycle uses more mechanical energy than one which produces cooling at two temperature levels.
  • U.S. Patents 4,910,972 and 4,918,942 each discloses a refrigeration system in which a separate evaporator is used to provide the refrigeration for each of the freezer and fresh food compartments.
  • the compressor or compression means in each of these patents takes the form of a two-stage compressor or dual compressors. Refrigerant from the freezer evaporator is fed to a low pressure stage which elevates its pressure to an intermediate level. The vapor stage refrigerant from the fresh food compartment is combined with the refrigerant exiting the low pressure compression stage and all,the recirculated refrigerant is then fed to a high pressure compression stage, which raises the refrigerant pressure to the desired relatively high compressor outlet pressure.
  • EP-A-485146 discloses refrigeration circuits utilizing separate evaporators for the freezer compartment and the fresh food compartment. It discloses the use of a compression means combining single stage compressor with a valve which selectively connects the outlet of the freezer evaporator and vapor stage refrigerant from the fresh food compartment alternately to the single compressor.
  • the valve feeds refrigerant from freezer evaporator to the compressor
  • the compressor raises the refrigerant pressure all the way from the low pressure of the evaporator freezer to the desired high compressor outlet pressure.
  • the valve feeds vapor refrigerant from the fresh food evaporator to the compressor, the compressor only has to raise the pressure from an intermediate pressure level to the desired compressor outlet pressure.
  • phase separator functions to separate vapor stage refrigerant and liquid stage refrigerant with the liquid refrigerant being fed to the freezer evaporator and the vapor refrigerant being fed to the compressor means.
  • the fresh food evaporator will cause at least the vast majority of the refrigerant to vaporize.
  • Embodiments of the present invention seek to provide: a refrigerator including an improved refrigerant system; a household refrigerator with separate evaporators for the fresh food compartment and thee freezer compartment in which the flow of refrigerant through each of the evaporators is independent of the flow of refrigerant through the other evaporator; and/or a household refrigerator in which a plurality of evaporators are connected in parallel refrigerant flow relationship with each other in a unitary refrigerant circuit.
  • a household refrigerator comprises compressor means, condenser means connected to receive refrigerant discharged from the compressor means, a fresh food compartment with a fresh food evaporator for refrigerating the fresh food compartment and a freezer compartment with a freezer evaporator for refrigerating the freezer compartment.
  • the fresh food and freezer evaporators are connected in parallel refrigerant flow relationship between the condenser means and the compressor means so that refrigerant exiting the condenser means may flow through either of the evaporators to the compressor means independent of flow of refrigerant through the other of the evaporators.
  • the refrigeration system of a present day household refrigerator is operated so that the freezer compartment is maintained in a temperature range between -10°F and +15°F while the fresh food compartment is maintained in a temperature range between about +33°F and +47°F, respectively.
  • the refrigeration system for the refrigerator 10 includes a first or freezer evaporator 20, a second or fresh food evaporator 21, a condenser 22 , and a compressor or compression means 23. These basic units are connected together by conduit in a fluid and vapor tight refrigerant circuit for circulation of two phase refrigerant, as is well known in the art. More specifically, the compressor 23 is of the two stage type having a first or low pressure compression stage and an upper or high pressure compression stage.
  • the high pressure refrigerant gas or vapor exits the compressor 23 from an outlet 24 and flows to the condenser 22 where it is changed from a gas to a liquid.
  • the liquid refrigerant flows through a dryer 25 to a valve or joint 26 which divides the refrigerant flow into two parallel refrigerant paths.
  • a first path extends through an expansion device 27 to the fresh food evaporator 21 and then back to the intermediate pressure inlet 28 of the compressor.
  • the other refrigerant flow path from the Joint 26 extends through an expansion device 29 to the freezer evaporator 20 and then back to a low pressure inlet 30 of the compressor.
  • expansion means or devices 27 and 29 may take any one of a number of known configurations.
  • this expansion device is in the form of a capillary tube which allow the refrigerant to expand and begin to convert from a liquid to a vapor as it passes through the capillary tube.
  • Other kinds of refrigeration systems use expansion valves, either preset or adjustable, to permit the refrigerant to expand. Such valves also can be used in household refrigerators; however, capillary tubes are preferred for such applications as they are less expensive.
  • the freezer evaporator 20 operates at a significantly lower temperature than the fresh food evaporator 21. Therefore, the vapor or gaseous refrigerant flowing from the evaporator 20 to the compressor 23 is at a significantly lower pressure than the refrigerant flowing from the evaporator 21 to the compressor.
  • the refrigerant from the freezer evaporator is fed to the low pressure inlet 30 of two stage compressor 23 and is compressed by the first or low pressure stage to an intermediate pressure, generally corresponding to the exit pressure of the fresh food evaporator 21.
  • the refrigerant exiting the fresh food evaporator 21 is fed to the intermediate pressure inlet 28 of the compressor 23.
  • the refrigerant from the fresh food evaporator and from the low pressure stage of the conpressor is compressed by the second stage to the relatively high exit pressure of the compressor.
  • energy is saved because only the refrigerant necessary to cool the freezer is cycled between low level of the freezer evaporator outlet pressure and the high level of the compressor outlet pressure and the refrigerant used to cool the fresh food compartment is cycled between an intermediate pressure level necessary to provide the desired operating temperature of the fresh food compartment and the high level of the compressor outlet pressure.
  • the refrigerant for the freezer evaporator does not flow through the fresh food evaporator.
  • the fresh food evaporator cannot starve the freezer evaporator for refrigerant and the freezer evaporator is assured of sufficient refrigerant for appropriate operation.
  • conduit 31 connecting the outlet of the fresh food evaporator 21 with the compressor and the portion of conduit 32 connecting the valve or Joint 26 with the expansion means 29 are arranged in heat transfer relationship with each other, as indicated at 33. This normally is accomplished either by brazing the two lengths of conduit together in a reverse flow relationship or by wrapping one of the conduits tightly around the other one. This heat transfer relationship results in the relatively cold refrigerant flowing from fresh food evaporator 21 providing pre-cooling and intercooling of the relatively hot refrigerant flowing to the freezer evaporator 20. This intercooling further enhances the efficiency of the system.
  • a thermostat 35 is mounted in the fresh food compartment and senses the ambient temperature within that compartment.
  • the thermostat senses a predetermined high temperature, normally in the vicinity of the upper temperature limit of that compartment, such as +47°F for example, it causes the compressor 23 to be connected to a source of power such as the household electric system and the compressor then will continue to run until the thermostat senses a predetermined lower temperature, normally in the vicinity of the lower limit of the operating range of the fresh food compartment, such as +33°F for example.
  • a predetermined high temperature normally in the vicinity of the upper temperature limit of that compartment, such as +47°F for example
  • the compressor 23 causes the compressor 23 to be connected to a source of power such as the household electric system and the compressor then will continue to run until the thermostat senses a predetermined lower temperature, normally in the vicinity of the lower limit of the operating range of the fresh food compartment, such as +33°F for example.
  • a predetermined lower temperature normally in the vicinity of the lower limit of the operating range of the fresh food compartment, such as +33°F
  • the passage of the refrigerant conduits and wiring through the insulated wall 11 is sealed to prevent air leakage.
  • the openings 37 and 38 are for ease of illustration only.
  • Fig. 2 illustrates another refrigerant circuit, which is substantially similar to that included in Fig. 1 except for the compression means, and like numerals are used to identify like components.
  • the compression means 40 includes a first, low pressure compressor 41 having an inlet 42 and an outlet 43, and a second, high pressure compressor 44 having an inlet 45 and an outlet 46.
  • the compressors 41 and 44 may be independent of each other with each being operated by its own motor but are controlled so that they operate simultaneously. Alternatively, they may be operated by a single motor as they will always operate at the same time.
  • the refrigerant exiting freezer evaporator 20 is fed to the inlet 42 of low pressure compressor 41 which compresses that refrigerant to an intermediate pressure corresponding to the outlet pressure of the fresh food evaporator 21.
  • Refrigerant from both the low pressure compressor 41 and the fresh food evaporator 21 is fed to the inlet of the high pressure compressor 44, which compresses the combined refrigerant to a high pressure.
  • This high pressure refrigerant flows from exit 46 of the compressor 44 is fed to the condenser 22.
  • Fig. 3 illustrates another refrigerant circuit which is substantially similar to that of Figs. 1 and 2, except that it uses a compression means including a valve and a single compressor, and the same numerals have been used identifying like components.
  • a flow control or selection valve 50 having a pair of inlets 51 and 52 and an outlet 53, is connected between the outlets of the evaporators 20 and 21 and the inlet of a single stage compressor 54.
  • the valve 50 functions to alternately connect each of evaporators 20 and 21 to the inlet of the compressor 54 so that, so long as the compressor 54 is operating, the valve 50 alternately conducts refrigerant from each of the evaporators 20 and 21 to compressor 54.
  • compressor 54 When compressor 54 is connected to evaporator 20 it compresses refrigerant from the relatively low exit pressure of evaporator 20 to the high exit pressure of the compressor whereas, when compressor 54 is connected to evaporator 21 it compresses refrigerant from an intermediate pressure to the same compressor outlet pressure. Details of construction, operation and control of valves suitable for use in this circuit are shown and described in co-pending application EP-A-485146 (USSN 07/612,290) incorporated herein by reference. It will be understood that a two stage compressor 23 as illustrated in Figs. 1 and 6, a compression means such as 40 including two separate compressors 41 and 44 as illustrated in Figs. 2 and 4; and a compression means including a valve 50 and compressor 54 arrangement, as shown in Fig. 3, may be utilized essentially interchangeably with various embodiments of the present invention.
  • Fig. 4 discloses a refrigerant circuit similar to those of Figs. 1 and 2, except for the location of the heat exchange relationship between the freezer and fresh food conduits for intercooling of refrigerant flowing to the freezer evaporator, and like numbers have been used to identify like parts.
  • the conduit portion 56 connected between the expansion device 27 and the inlet of the fresh food evaporator 21 is arranged in heat exchange relationship with the conduit portion 32 connecting the valve 26 to the expansion device 28 for freezer evaporator 20, as indicated at 57.
  • the conduit portion 58 connecting the outlet of freezer evaporator 20 to the compressor means 40 also is disposed in heat exchange relationship with the conduit portion 32, as indicated at 59. This double heat exchange relationship more completely uses the cooling capability of the refrigerant in the system, and thus enhances efficiency.
  • portions of the conduit carrying refrigerant for the two evaporators are arranged in heat transfer relationship with each other to provide intercooling for the refrigerant flowing to the freezer evaporator.
  • this intercooling of the freezer evaporator refrigerant is provided in a somewhat more indirect manner.
  • an intercooler or heat transfer device 62 is connected in refrigerant flow relationship between the joint or valve 26 and the freezer refrigerant expansion means 28 and is positioned in the fresh food compartment 14, preferably near the fresh food evaporator 21.
  • the intercooler 62 may be constructed as a small heat exchanger like an evaporator or a condenser.
  • Other aspects of the refrigerator are substantially similar to the embodiment illustrated in Fig. 1, and like numbers have been used to identify like compartments.
EP92310044A 1991-11-04 1992-11-03 Kälteanlagen Withdrawn EP0541324A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US78708091A 1991-11-04 1991-11-04
US787080 1991-11-04

Publications (1)

Publication Number Publication Date
EP0541324A1 true EP0541324A1 (de) 1993-05-12

Family

ID=25140362

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92310044A Withdrawn EP0541324A1 (de) 1991-11-04 1992-11-03 Kälteanlagen

Country Status (3)

Country Link
EP (1) EP0541324A1 (de)
JP (1) JPH05223368A (de)
CA (1) CA2080219A1 (de)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0935106A3 (de) * 1998-02-06 2000-05-24 SANYO ELECTRIC Co., Ltd. Kältevorrichtung mit mehrstufiger Verdichtung und die Vorrichtung verwendender Kühlschrank
EP1067341A2 (de) * 1999-07-06 2001-01-10 SANYO ELECTRIC Co., Ltd. Gerät mit Kältekreislauf
EP1416232A1 (de) * 2002-10-31 2004-05-06 Matsushita Electric Industrial Co., Ltd. Verfahren zur Hochdruckbestimmung in einer Kühlanlage
WO2005052469A1 (en) * 2003-11-28 2005-06-09 Multibrás S.A. Eletrodomésticos Improvement in a refrigeration system for cabinets
WO2006062860A2 (en) 2004-12-10 2006-06-15 Carrier Corporation Refrigerant system with common economizer and liquid-suction heat exchanger
EP1696188A2 (de) * 2005-01-31 2006-08-30 Sanyo Electric Co., Ltd. Kühlvorrichtung und Kühlschrank
EP1707900A1 (de) * 2003-11-28 2006-10-04 Kabushiki Kaisha Toshiba Kühlvorrichtung
EP1795838A2 (de) * 2002-11-07 2007-06-13 Sanyo Electric Co., Ltd. Mehrstufenkompressionsartiger Rotationsverdichter und Kühlvorrichtung
US8266923B2 (en) * 2004-03-26 2012-09-18 Bsh Bosch Und Siemens Hausgeraete Gmbh Refrigerating device comprising two storage compartments with selective cooling modes
FR3012587A1 (fr) * 2013-10-30 2015-05-01 Valeo Systemes Thermiques Circuit de conditionnement thermique d'un habitacle
CN106940108A (zh) * 2016-01-05 2017-07-11 Lg电子株式会社 冰箱
EP3217115A4 (de) * 2014-11-04 2018-07-18 Mitsubishi Electric Corporation Klimatisierungsvorrichtung
CN110411052A (zh) * 2018-04-26 2019-11-05 日立江森自控空调有限公司 空调装置

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7775775B2 (en) 2007-03-27 2010-08-17 Lg Electronics Inc. Two stage reciprocating compressor and refrigerator having the same
KR100862296B1 (ko) * 2007-06-13 2008-10-13 엘지전자 주식회사 냉동사이클 장치 및 그를 구비한 냉장고
US7901192B2 (en) * 2007-04-04 2011-03-08 Lg Electronics Inc. Two stage reciprocating compressor and refrigerator having the same
JP2011179689A (ja) * 2010-02-26 2011-09-15 Hitachi Appliances Inc 冷凍サイクル装置
CN104949371A (zh) * 2015-07-07 2015-09-30 合肥美的电冰箱有限公司 冰箱的制冷系统和具有其的冰箱
CN114484908B (zh) * 2022-01-28 2023-06-13 澳柯玛股份有限公司 双级压缩机制冷系统及其控制方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2228834A (en) * 1940-01-13 1941-01-14 Gen Electric Refrigerating system
US2272093A (en) * 1939-10-24 1942-02-03 Gen Motors Corp Refrigerating apparatus
GB639691A (en) * 1947-01-04 1950-07-05 British Thomson Houston Co Ltd Improvements in and relating to refrigerating systems
US3226949A (en) * 1964-05-05 1966-01-04 Worthington Corp Multi-zone refrigeration system and apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2272093A (en) * 1939-10-24 1942-02-03 Gen Motors Corp Refrigerating apparatus
US2228834A (en) * 1940-01-13 1941-01-14 Gen Electric Refrigerating system
GB639691A (en) * 1947-01-04 1950-07-05 British Thomson Houston Co Ltd Improvements in and relating to refrigerating systems
US3226949A (en) * 1964-05-05 1966-01-04 Worthington Corp Multi-zone refrigeration system and apparatus

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0935106A3 (de) * 1998-02-06 2000-05-24 SANYO ELECTRIC Co., Ltd. Kältevorrichtung mit mehrstufiger Verdichtung und die Vorrichtung verwendender Kühlschrank
EP1067341A2 (de) * 1999-07-06 2001-01-10 SANYO ELECTRIC Co., Ltd. Gerät mit Kältekreislauf
EP1067341A3 (de) * 1999-07-06 2002-07-31 SANYO ELECTRIC Co., Ltd. Gerät mit Kältekreislauf
EP1416232A1 (de) * 2002-10-31 2004-05-06 Matsushita Electric Industrial Co., Ltd. Verfahren zur Hochdruckbestimmung in einer Kühlanlage
US6854283B2 (en) 2002-10-31 2005-02-15 Matsushita Electric Industrial Co., Ltd. Determining method of high pressure of refrigeration cycle apparatus
EP1795838A2 (de) * 2002-11-07 2007-06-13 Sanyo Electric Co., Ltd. Mehrstufenkompressionsartiger Rotationsverdichter und Kühlvorrichtung
EP1795838A3 (de) * 2002-11-07 2007-06-27 Sanyo Electric Co., Ltd. Mehrstufenkompressionsartiger Rotationsverdichter und Kühlvorrichtung
EP1707900A1 (de) * 2003-11-28 2006-10-04 Kabushiki Kaisha Toshiba Kühlvorrichtung
US7770406B2 (en) 2003-11-28 2010-08-10 Kabushiki Kaisha Toshiba Refrigerator
WO2005052469A1 (en) * 2003-11-28 2005-06-09 Multibrás S.A. Eletrodomésticos Improvement in a refrigeration system for cabinets
EP1707900A4 (de) * 2003-11-28 2008-10-29 Toshiba Kk Kühlvorrichtung
US8266923B2 (en) * 2004-03-26 2012-09-18 Bsh Bosch Und Siemens Hausgeraete Gmbh Refrigerating device comprising two storage compartments with selective cooling modes
WO2006062860A2 (en) 2004-12-10 2006-06-15 Carrier Corporation Refrigerant system with common economizer and liquid-suction heat exchanger
EP1819970A2 (de) * 2004-12-10 2007-08-22 Carrier Corporation Kühlmittelsystem mit gemeinsamem spar- und flüssigkeits-wärmetauscher
EP1819970A4 (de) * 2004-12-10 2010-07-14 Carrier Corp Kühlmittelsystem mit gemeinsamem spar- und flüssigkeits-wärmetauscher
EP1696188A3 (de) * 2005-01-31 2008-02-13 Sanyo Electric Co., Ltd. Kühlvorrichtung und Kühlschrank
EP1696188A2 (de) * 2005-01-31 2006-08-30 Sanyo Electric Co., Ltd. Kühlvorrichtung und Kühlschrank
FR3012587A1 (fr) * 2013-10-30 2015-05-01 Valeo Systemes Thermiques Circuit de conditionnement thermique d'un habitacle
EP3217115A4 (de) * 2014-11-04 2018-07-18 Mitsubishi Electric Corporation Klimatisierungsvorrichtung
CN106940108A (zh) * 2016-01-05 2017-07-11 Lg电子株式会社 冰箱
EP3190356A1 (de) * 2016-01-05 2017-07-12 Lg Electronics Inc. Kühlschrank und verfahren zur steuerung davon
US10088216B2 (en) 2016-01-05 2018-10-02 Lg Electronics Inc. Refrigerator and method of controlling the same
CN106940108B (zh) * 2016-01-05 2019-09-06 Lg电子株式会社 冰箱
CN110411052A (zh) * 2018-04-26 2019-11-05 日立江森自控空调有限公司 空调装置
CN110411052B (zh) * 2018-04-26 2021-05-28 日立江森自控空调有限公司 空调装置

Also Published As

Publication number Publication date
JPH05223368A (ja) 1993-08-31
CA2080219A1 (en) 1993-05-05

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