US20100089079A1 - Cooling furniture comprising at least two thermally separate compartments - Google Patents

Cooling furniture comprising at least two thermally separate compartments Download PDF

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Publication number
US20100089079A1
US20100089079A1 US12/519,384 US51938407A US2010089079A1 US 20100089079 A1 US20100089079 A1 US 20100089079A1 US 51938407 A US51938407 A US 51938407A US 2010089079 A1 US2010089079 A1 US 2010089079A1
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US
United States
Prior art keywords
refrigeration
expansion valve
item
compartments
refrigeration equipment
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.)
Abandoned
Application number
US12/519,384
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English (en)
Inventor
Peter Bauer
Matthias Mrzyglod
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
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 BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Assigned to BSH BOSCH UND SIEMENS HAUSGERAETE GMBH reassignment BSH BOSCH UND SIEMENS HAUSGERAETE GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BAUER, PETER, MRZYGLOD, MATTHIAS
Publication of US20100089079A1 publication Critical patent/US20100089079A1/en
Abandoned 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
    • F25B5/04—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in series
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/37—Capillary tubes
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/385—Dispositions with two or more expansion means arranged in parallel on a refrigerant line leading to the same evaporator
    • 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
    • F25B2341/00—Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves
    • F25B2341/06—Details of flow restrictors or expansion valves
    • F25B2341/062—Capillary expansion valves
    • 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
    • F25B2400/16—Receivers
    • 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
    • F25B2600/00—Control issues
    • F25B2600/25—Control of valves
    • F25B2600/2513—Expansion valves
    • 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
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/12—Sensors measuring the inside temperature
    • 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
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/12—Sensors measuring the inside temperature
    • F25D2700/122—Sensors measuring the inside temperature of freezer compartments

Definitions

  • the invention relates to refrigeration equipment comprising at least two thermally separate compartments, the evaporators of which, together with a compressor and a condenser, are located in a refrigerant circuit and to which liquid refrigerant is applied by the compressor on receipt of a signal that refrigeration is required in the compartments, whereby the degree of refrigeration contributing to the generation of refrigeration is controllable. Furthermore, the invention relates to a method suitable for operating this refrigeration equipment.
  • German printed specification DE 23 50 998 discloses refrigeration equipment comprising a single circuit, which is embodied at low cost with merely a single entry point for the refrigerant into the evaporators.
  • Evaporators are here associated with a freezer compartment and a normal refrigeration compartment in each case and are arranged one after the other in series in the refrigerant circuit.
  • this arrangement in series of the evaporators has the disadvantage that it is necessary to dimension the individual evaporators in accordance with the refrigeration requirement existing in the individual compartments, or the temperature requirements pertaining there. Consequently the design of the evaporators cannot be optimized in respect of a desired energy efficiency, since to this end the evaporators would have to be designed to have as large a surface as possible.
  • a reservoir for temporary storage of liquid refrigerant is provided in the refrigerant circuit upstream of a junction leading to the evaporators. Additional refrigerant can be selectively introduced into the refrigerant circuit herefrom by heating the reservoir when more refrigeration is required, in particular when both evaporators are operating simultaneously.
  • the refrigerant to be introduced into the evaporators is extracted from the condenser in accordance with this requirement at one extraction point or simultaneously at several extraction points.
  • a disadvantage with this prior art is that energy-consuming storage media or else inefficiently used condensers are used in order to control the variable quantity of refrigerant resulting from switching the individual evaporators on and off
  • the parallel arrangement of a plurality of evaporators also results in significant additional cost compared to single circuits because of the two-fold design of the injection system (valve, throttle capillaries, injection point).
  • a single circuit which can be realized at low cost and energy-efficiently compared to the above systems and which nevertheless is designed such that the individual refrigeration compartments of the refrigeration equipment can be regulated largely independently of one another in terms of temperature is described in unexamined German patent application DE 44 33 712 A1.
  • a plurality of evaporators are arranged in series in the refrigeration circuit, which are associated with a freezing compartment, a cold storage compartment and a normal refrigeration compartment in the flow direction of the refrigerant.
  • the quantity of refrigeration introduced into the chain of evaporators is selectively controlled.
  • refrigerant is extracted from the refrigerant circuit and is temporarily stored in a reservoir. This results in a depletion of refrigerant in the evaporator chain, so that no more refrigeration takes place in the downstream evaporator of the normal refrigeration compartment. However, if this normal refrigeration compartment is now to be refrigerated, the flow of refrigerant coming from the compressor is routed through the reservoir by diverting the refrigerant circuit, so that as a result an increased quantity of refrigerant flows into the evaporators therefrom.
  • the quantity of refrigerant available can be controlled using minimum energy and in the same pass of the evaporators generate and temporarily store refrigerant without impediment for storage in the reservoir even if the requirement for refrigerant is small.
  • the connected refrigerant supply line through the reservoir or past it results in increased additional costs when manufacturing the refrigeration equipment.
  • the object of the invention is to find low-cost refrigeration equipment having at least two compartments thermally separate from one another as well as a method suitable for operating this refrigeration equipment, in which there is compartment-specific temperature regulation using just a single shared refrigerant circuit and a uniform, modular manufacture of the evaporator components is enabled.
  • an evaporator is associated with each of these compartments.
  • An expansion valve and these evaporators are arranged in series one behind the other in a refrigerant circuit.
  • at least two states having different nontransient flow coefficients can be set at the expansion valve.
  • the invention is thus based on a selective alteration of the flow coefficient of an expansion valve in the refrigerant circuit of an item of refrigeration equipment.
  • the refrigerant flow through the evaporators of the refrigeration equipment can be selectively altered hereby. In refrigeration equipment having a single circuit, this brings about an alteration in the ratio of liquid to gaseous refrigerant in the individual evaporators and thus an alteration of the refrigeration capacity available in the evaporators.
  • the variability of the refrigeration capacity achieved in this way means that the dimensions of the individual evaporators are no longer determined, as was normal in the past with refrigeration equipment having evaporators connected in series, by the expected ratio between the refrigeration capacities required in the individual compartments.
  • the evaporators can thus be dimensioned to be large in size in respect of optimum energy efficiency.
  • the advantages of the invention are particularly relevant in multi-zone refrigeration appliances in which individual compartments such as a freezer compartment, normal refrigeration compartment, basement compartment and 0° compartment are to be supplied individually and actively regulated.
  • the evaporators of the refrigeration equipment can be freely designed or dimensioned thanks to the invention independently of the refrigeration requirement in the individual compartments, the revenue-making potential arises of producing multi-zone refrigeration equipment, the components of which (in particular evaporators) can be used uniformly (modularly) in large quantities and hereby open up the advantages of the refrigeration equipment known from the prior art in respect of energy efficiency and controllability.
  • temperature sensors are then connected to an evaluation circuit for signaling a refrigeration requirement in the individual compartments, this evaluation circuit forming a part of a temperature regulator. If one of the temperature sensors signals to this temperature regulator that there is a refrigeration requirement in at least one of the compartments of the refrigeration equipment, the temperature regulator sets the flow coefficient of the expansion valve so that the refrigerant flowing through preferably evaporates in the compartment in which the refrigeration requirement was detected.
  • FIG. 1 an item of refrigeration equipment with an expansion valve according to the present invention
  • FIG. 2 possible embodiments of a three-step switchable expansion valve that can be used in the refrigeration equipment.
  • FIG. 1 shows an item of refrigeration equipment 20 which has two compartments 21 , 21 ′ that can be regulated to different temperatures.
  • Each of the compartments 21 , 21 ′ is associated with an evaporator 2 , 2 ′.
  • These evaporators 2 , 2 ′ are located in a refrigerant circuit 1 , through which refrigerant flows, in series downstream of a compressor 3 , a condenser 4 and an expansion valve 5 .
  • Each of the compartments 21 , 21 ′ is associated with a temperature sensor 12 , 12 ′.
  • These temperature sensors 12 , 12 ′ are connected to an evaluation circuit 11 for signaling a refrigeration requirement, said circuit forming part of a temperature regulator 10 .
  • the temperature regulator 10 activates the compressor 3 via a control line 14 if a refrigeration requirement is detected in one of the compartments, and deactivates it if no further refrigeration requirement is detected.
  • the temperature regulator 10 activates the expansion valve 5 via a control line 13 when signaling a refrigeration requirement in at least one compartment 12 , 12 ′, in order to adjust the flow coefficients of the latter as a function of the refrigeration requirement detected.
  • the simple design means that the temperature regulator 10 sets one of two discrete nontransient values of the flow coefficient at the expansion valve 5 , namely a low value if refrigeration is required in compartment 21 ′ and a high value if refrigeration is required in compartment 21 .
  • the flow coefficient of the expansion valve 5 is set as small by the temperature regulator 10 , more refrigerant is drawn through the compressor 3 from the evaporators 2 , 2 ′ than is introduced via the expansion valve 5 into the evaporators 2 , 2 ′.
  • the pressure in the evaporators is low, and the evaporator temperature correspondingly low. In this way the refrigerant evaporates only in the vicinity of its outlet point from the expansion valve 5 , in the evaporator 2 ′, and in essence only compartment 21 ′ is refrigerated.
  • the flow coefficient of the expansion valve 5 is selected as large by the temperature regulator 10 . Since less refrigerant is drawn through the compressor 3 than is introduced via the expansion valve 5 into the evaporators 2 , 2 ′ the pressure in the evaporators and correspondingly also the boiling point of the refrigerant rises. If it is higher than the temperature of compartment 21 ′, the refrigerant flows through the evaporator 2 ′, without evaporating, and does not evaporate until it is in the evaporator 2 of the warmer compartment 21 . In this way in essence only compartment 21 ′ is refrigerated.
  • An average flow coefficient can be selected if there is a refrigeration requirement in both compartments 21 , 21 ′ simultaneously. Then in each case some of the refrigerant evaporates in evaporator 21 ′ and the rest in evaporator 21 .
  • the same average flow coefficient can be selected if compartment 21 ′ has an unusually high refrigeration requirement, for instance when fast-freezing newly stored refrigerated goods.
  • an item of refrigeration equipment has three or more compartments refrigerated by evaporators connected in series, and an expansion valve arranged upstream of the evaporators in a refrigerant circuit can be switched between at least as many values of the flow coefficient as there are compartments present.
  • the values are selected such that when setting one of these values the evaporation of the refrigerant takes place predominantly in an evaporator associated with this value.
  • the value of the flow coefficient associated with an evaporator is higher the further downstream the associated evaporator is located in the refrigerant circuit.
  • an expansion valve having a steplessly controllable flow coefficient can be used. Expansion valves for which only a small number of discrete values of the flow coefficient can be set are especially simple and are sufficient for most applications.
  • FIG. 2 shows three possible embodiments of an expansion valve 5 suitable for this.
  • the fork for example by means of a T-piece
  • the fork in the main supply line 31 of the refrigerant circuit at the inlet to the expansion valve 5 into two parallel line paths.
  • a blocking element 30 is added to these two line paths subsequent to this fork.
  • This blocking element 30 e.g. a directional control valve, has a first switching stage, in which both line paths are blocked, a second switching stage, in which one of the two line paths is open and the other is blocked, and a third switching stage, in which the other line path is open, it being possible for one line path in this third switching stage to be open or blocked.
  • a capillary tube 34 At the outlet of the blocking element 30 is a capillary tube 34 , which discharges directly into the evaporator 21 ′ in known manner.
  • the parallel routed line paths mentioned above comprise capillary tubes 32 , 33 of different lengths and the same cross-section upstream of the inlets of the blocking element 30 .
  • the refrigerant flows through the capillary tube 32 , the capillary tube 33 or through both in parallel, from which in each case different flow coefficients of the expansion valve 5 result.
  • a capillary tube 52 is provided on only one of the two line paths; the other line branch 53 has no significant flow resistance on account of small length or large cross-section. If the blocking element switches its opening to line branch 53 , this corresponds to a direct connection of the main supply line 31 to the capillary tube 34 located at the outlet of the blocking element 30 .
  • the line branch 53 thus forms a bypass around the capillary tube 52 .
  • a multistage controllable expansion valve is of course not restricted to the versions shown in FIG. 2 .
  • diaphragms can be used in an otherwise commodious refrigerant line. More than two nontransient values of the flow coefficient can be achieved, in that a directional control valve with four settings, corresponding to the four possible combinations of “Open” and “Blocked” of the two line branches, is provided, or in that the main supply line 31 in the expansion valve 5 is split into more than two parallel, individually switchable line branches.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
US12/519,384 2006-12-22 2007-11-22 Cooling furniture comprising at least two thermally separate compartments Abandoned US20100089079A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102006061091.1 2006-12-22
DE102006061091A DE102006061091A1 (de) 2006-12-22 2006-12-22 Kühlmöbel mit wenigstens zwei thermisch voneinander getrennten Fächern
PCT/EP2007/062709 WO2008077697A2 (fr) 2006-12-22 2007-11-22 Meuble de réfrigération pourvu d'au moins deux compartiments thermiquement séparés l'un de l'autre

Publications (1)

Publication Number Publication Date
US20100089079A1 true US20100089079A1 (en) 2010-04-15

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US12/519,384 Abandoned US20100089079A1 (en) 2006-12-22 2007-11-22 Cooling furniture comprising at least two thermally separate compartments

Country Status (8)

Country Link
US (1) US20100089079A1 (fr)
EP (2) EP2426434A1 (fr)
CN (1) CN101568773B (fr)
AT (1) ATE549585T1 (fr)
DE (1) DE102006061091A1 (fr)
ES (1) ES2381655T3 (fr)
RU (1) RU2009126091A (fr)
WO (1) WO2008077697A2 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120322354A1 (en) * 2011-06-16 2012-12-20 Andres Michael J Heat pump for supplemental heat
WO2012110294A3 (fr) * 2011-02-15 2013-04-04 BSH Bosch und Siemens Hausgeräte GmbH Appareil frigorifique ménager équipé de détendeurs non régulés
US20150075212A1 (en) * 2013-09-16 2015-03-19 The Coca-Cola Company Carbon Dioxide Refrigeration System with a Multi-Way Valve
US20150226472A1 (en) * 2014-02-07 2015-08-13 Pdx Technologies Llc Refrigeration system with separate feedstreams to multiple evaporator zones
WO2019044661A1 (fr) * 2017-08-29 2019-03-07 東芝キヤリア株式会社 Système de climatisation de type multiple et unité intérieure

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Publication number Priority date Publication date Assignee Title
DE102011006856A1 (de) * 2011-04-06 2012-10-11 BSH Bosch und Siemens Hausgeräte GmbH Haushaltskältegerät mit Kältemittelrohrleitungen
CH704974A1 (de) * 2011-05-18 2012-11-30 Bs2 Ag Expansionsapparat für Wärmepumpen.
DE102011079206A1 (de) * 2011-07-14 2013-01-17 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät mit mehreren Kammern
EP2587190A3 (fr) * 2011-10-26 2014-05-14 Liebherr-Hausgeräte Ochsenhausen GmbH Appareil de réfrigération et/ou de congélation
DE102012201079A1 (de) * 2012-01-25 2013-07-25 Binder Gmbh Kälteschrank
DE102012211270A1 (de) 2012-06-29 2014-01-02 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät mit einer verstellbaren Drosselung
DE102013223737A1 (de) * 2013-11-20 2015-05-21 BSH Hausgeräte GmbH Einkreis-Kältegerät
CN105202838B (zh) * 2015-10-19 2017-07-28 广东美的暖通设备有限公司 多联机系统及其中间压力控制方法
DE102016224283A1 (de) * 2016-12-06 2018-06-07 Hahn-Schickard-Gesellschaft für angewandte Forschung e.V. Expansionsventil
DE102018202008A1 (de) * 2018-02-08 2019-08-08 BSH Hausgeräte GmbH Kombinationskältegerät
BR102018011553A2 (pt) * 2018-06-07 2019-12-10 Embraco Ind De Compressores E Solucoes Em Refrigeracao Ltda método e sistema de controle de um sistema de refrigeração e equipamento de refrigeração
DE102019112093A1 (de) * 2018-07-12 2020-01-16 Liebherr-Hausgeräte Ochsenhausen GmbH Kühl- und/oder Gefriergerät
DE102019202649A1 (de) * 2019-02-27 2020-08-27 BSH Hausgeräte GmbH Kältegerät
DE102019218352A1 (de) * 2019-11-27 2021-05-27 BSH Hausgeräte GmbH Kältegerät mit variabel nutzbarem Fach
CN112944775A (zh) * 2021-02-10 2021-06-11 西安交通大学 一种低温冰箱

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US2667756A (en) * 1952-01-10 1954-02-02 Gen Electric Two-temperature refrigerating system
US3950961A (en) * 1973-10-11 1976-04-20 Bosch-Siemens Hausgerate Gmbh Cooling system for a two-temperature refrigerator
US5845503A (en) * 1996-09-25 1998-12-08 Samsung Electronics Co., Ltd. Refrigerator having degree control means and control method thereof
US6430950B1 (en) * 1998-11-12 2002-08-13 Behr Gmbh & Co. Expansion element and a valve unit usable therefor
US20030131618A1 (en) * 2002-01-15 2003-07-17 Takashi Doi Two-evaporator refrigerator having a controlled variable throttler
US20040216477A1 (en) * 2003-03-24 2004-11-04 Haruhisa Yamasaki Refrigerant cycle apparatus
US7243501B2 (en) * 2004-04-09 2007-07-17 Valeo Climatisation Expansion device for an air-conditioning system
US20060162377A1 (en) * 2005-01-24 2006-07-27 Collings Douglas A Expansion device arrangement for vapor compression system

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012110294A3 (fr) * 2011-02-15 2013-04-04 BSH Bosch und Siemens Hausgeräte GmbH Appareil frigorifique ménager équipé de détendeurs non régulés
US20120322354A1 (en) * 2011-06-16 2012-12-20 Andres Michael J Heat pump for supplemental heat
US10266034B2 (en) * 2011-06-16 2019-04-23 Hamilton Sundstrand Corporation Heat pump for supplemental heat
US20150075212A1 (en) * 2013-09-16 2015-03-19 The Coca-Cola Company Carbon Dioxide Refrigeration System with a Multi-Way Valve
US20150226472A1 (en) * 2014-02-07 2015-08-13 Pdx Technologies Llc Refrigeration system with separate feedstreams to multiple evaporator zones
US9791188B2 (en) * 2014-02-07 2017-10-17 Pdx Technologies Llc Refrigeration system with separate feedstreams to multiple evaporator zones
US11306951B2 (en) 2014-02-07 2022-04-19 Pdx Technologies Llc Refrigeration system with separate feedstreams to multiple evaporator zones
WO2019044661A1 (fr) * 2017-08-29 2019-03-07 東芝キヤリア株式会社 Système de climatisation de type multiple et unité intérieure
JPWO2019044661A1 (ja) * 2017-08-29 2020-05-28 東芝キヤリア株式会社 マルチタイプ空調システムおよび室内ユニット

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CN101568773B (zh) 2012-07-25
EP2126482A2 (fr) 2009-12-02
RU2009126091A (ru) 2011-01-27
EP2426434A1 (fr) 2012-03-07
ES2381655T3 (es) 2012-05-30
DE102006061091A1 (de) 2008-06-26
CN101568773A (zh) 2009-10-28
WO2008077697A3 (fr) 2008-09-04
ATE549585T1 (de) 2012-03-15
WO2008077697A2 (fr) 2008-07-03
EP2126482B1 (fr) 2012-03-14

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