[go: up one dir, main page]

EP1921399A3 - Zweistufiges transkritisches Kühlsystem - Google Patents

Zweistufiges transkritisches Kühlsystem Download PDF

Info

Publication number
EP1921399A3
EP1921399A3 EP07254445A EP07254445A EP1921399A3 EP 1921399 A3 EP1921399 A3 EP 1921399A3 EP 07254445 A EP07254445 A EP 07254445A EP 07254445 A EP07254445 A EP 07254445A EP 1921399 A3 EP1921399 A3 EP 1921399A3
Authority
EP
European Patent Office
Prior art keywords
refrigerant
refrigeration system
stage compressor
fluid communication
assembly
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Withdrawn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
EP07254445A
Other languages
English (en)
French (fr)
Other versions
EP1921399A2 (de
Inventor
Doron Shapiro
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.)
Hussmann Corp
Original Assignee
Hussmann Corp
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 Hussmann Corp filed Critical Hussmann Corp
Publication of EP1921399A2 publication Critical patent/EP1921399A2/de
Publication of EP1921399A3 publication Critical patent/EP1921399A3/de
Withdrawn legal-status Critical Current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
    • 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
    • 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
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
    • F25B9/008—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant being carbon dioxide
    • 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
    • F25B2309/00—Gas cycle refrigeration machines
    • F25B2309/06—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide
    • F25B2309/061—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide with cycle highest pressure above the supercritical 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
    • 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
    • F25B2400/04—Refrigeration circuit bypassing means
    • F25B2400/0401—Refrigeration circuit bypassing means for the compressor
    • 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
    • F25B2400/054—Compression system with heat exchange between particular parts of the system between the suction tube of the compressor and another part of the cycle
    • 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
    • F25B2400/06—Several compression cycles 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
    • 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
    • F25B2400/07—Details of compressors or related parts
    • F25B2400/075—Details of compressors or related parts with parallel compressors
    • 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
    • F25B2400/22—Refrigeration systems for supermarkets
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B25/00—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00
    • F25B25/005—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00 using primary and secondary systems
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F25B43/006—Accumulators
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
EP07254445A 2006-11-13 2007-11-13 Zweistufiges transkritisches Kühlsystem Withdrawn EP1921399A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US85862406P 2006-11-13 2006-11-13

Publications (2)

Publication Number Publication Date
EP1921399A2 EP1921399A2 (de) 2008-05-14
EP1921399A3 true EP1921399A3 (de) 2010-03-10

Family

ID=39133833

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07254445A Withdrawn EP1921399A3 (de) 2006-11-13 2007-11-13 Zweistufiges transkritisches Kühlsystem

Country Status (2)

Country Link
US (1) US20080289350A1 (de)
EP (1) EP1921399A3 (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20080067A1 (it) * 2008-01-31 2009-08-01 Carpigiani Group Ali Spa Macchina per la produzione e l'erogazione di prodotti alimentari di consumo liquidi e semiliquidi.
US9151521B2 (en) * 2008-04-22 2015-10-06 Hill Phoenix, Inc. Free cooling cascade arrangement for refrigeration system
US8631666B2 (en) 2008-08-07 2014-01-21 Hill Phoenix, Inc. Modular CO2 refrigeration system
WO2010045743A1 (en) * 2008-10-23 2010-04-29 Dube Serge Co2 refrigeration system
US8011191B2 (en) 2009-09-30 2011-09-06 Thermo Fisher Scientific (Asheville) Llc Refrigeration system having a variable speed compressor
DE102010035695A1 (de) * 2010-08-27 2012-03-01 Aht Cooling Systems Gmbh Kühlmöbel, insbesondere Kühlregal
US9541311B2 (en) 2010-11-17 2017-01-10 Hill Phoenix, Inc. Cascade refrigeration system with modular ammonia chiller units
US9664424B2 (en) 2010-11-17 2017-05-30 Hill Phoenix, Inc. Cascade refrigeration system with modular ammonia chiller units
US9657977B2 (en) 2010-11-17 2017-05-23 Hill Phoenix, Inc. Cascade refrigeration system with modular ammonia chiller units
BR112014027770B1 (pt) * 2012-05-11 2021-11-03 Hill Phoenix, Inc Sistema integrado de refrigeração com co2 e condicionamento de ar (cda) para uso em um estabelecimento
US9194615B2 (en) 2013-04-05 2015-11-24 Marc-Andre Lesmerises CO2 cooling system and method for operating same
US9528726B2 (en) 2014-03-14 2016-12-27 Hussmann Corporation Low charge hydrocarbon refrigeration system
CA2928553C (en) 2015-04-29 2023-09-26 Marc-Andre Lesmerises Co2 cooling system and method for operating same
US10429101B2 (en) 2016-01-05 2019-10-01 Carrier Corporation Modular two phase loop distributed HVACandR system
CA3082309C (en) * 2017-11-10 2022-07-12 Hussmann Corporation Subcritical co2 refrigeration system using thermal storage
WO2019139906A1 (en) * 2018-01-11 2019-07-18 Vilter Manufacturing Llc Dual cascade heat exchanger refrigeration system and related method of operation
IT202000002878A1 (it) * 2020-02-13 2021-08-13 Arneg Assieme espositore e procedimento per farlo funzionare.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0126673A1 (de) * 1983-05-10 1984-11-28 Ets Bonnet Kälteanlage mit zentralisierter Kälteproduktion
US4947655A (en) * 1984-01-11 1990-08-14 Copeland Corporation Refrigeration system
EP0431797A2 (de) * 1989-11-22 1991-06-12 James C. Labrecque Kühlungssystem
US5522233A (en) * 1994-12-21 1996-06-04 Carrier Corporation Makeup oil system for first stage oil separation in booster system
WO2006022829A1 (en) * 2004-08-09 2006-03-02 Carrier Corporation Co2 refrigeration circuit with sub-cooling of the liquid refrigerant against the receiver flash gas and method for operating the same

Family Cites Families (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4151724A (en) * 1977-06-13 1979-05-01 Frick Company Pressurized refrigerant feed with recirculation for compound compression refrigeration systems
ATE249328T1 (de) * 1997-02-05 2003-09-15 Linde Ag Verfahren und vorrichtung zur kühlung extrudierter hohlprofile
DE19815885A1 (de) * 1998-04-08 1999-10-14 Linde Ag Verfahren und Vorrichtung zur Erzeugung von gasförmigem Druckprodukt bei der Tieftemperaturzerlegung von Luft
FR2779216B1 (fr) * 1998-05-28 2000-08-04 Valeo Climatisation Dispositif de climatisation de vehicule utilisant un fluide refrigerant a l'etat supercritique
US6112547A (en) * 1998-07-10 2000-09-05 Spauschus Associates, Inc. Reduced pressure carbon dioxide-based refrigeration system
JP3094996B2 (ja) * 1998-09-30 2000-10-03 ダイキン工業株式会社 二元冷凍装置
JP3085296B2 (ja) * 1998-12-25 2000-09-04 ダイキン工業株式会社 冷凍装置
JP3112003B2 (ja) * 1998-12-25 2000-11-27 ダイキン工業株式会社 冷凍装置
US6381972B1 (en) * 1999-02-18 2002-05-07 Hussmann Corporation Multiple zone refrigeration
US6467279B1 (en) * 1999-05-21 2002-10-22 Thomas J. Backman Liquid secondary cooling system
JP4392631B2 (ja) * 1999-06-24 2010-01-06 株式会社ヴァレオサーマルシステムズ 冷凍サイクルの可変容量制御装置
DE19935731A1 (de) * 1999-07-29 2001-02-15 Daimler Chrysler Ag Verfahren zum Betreiben einer unter- und transkritisch betriebenen Fahrzeugkälteanlage
US6189329B1 (en) * 2000-04-04 2001-02-20 Venturedyne Limited Cascade refrigeration system
US6843065B2 (en) * 2000-05-30 2005-01-18 Icc-Polycold System Inc. Very low temperature refrigeration system with controlled cool down and warm up rates and long term heating capabilities
US6324856B1 (en) * 2000-07-07 2001-12-04 Spx Corporation Multiple stage cascade refrigeration system having temperature responsive flow control and method
JP2002048421A (ja) * 2000-08-01 2002-02-15 Matsushita Electric Ind Co Ltd 冷凍サイクル装置
JP2002130849A (ja) * 2000-10-30 2002-05-09 Calsonic Kansei Corp 冷房サイクルおよびその制御方法
US6457325B1 (en) * 2000-10-31 2002-10-01 Modine Manufacturing Company Refrigeration system with phase separation
US6385980B1 (en) * 2000-11-15 2002-05-14 Carrier Corporation High pressure regulation in economized vapor compression cycles
US6418735B1 (en) * 2000-11-15 2002-07-16 Carrier Corporation High pressure regulation in transcritical vapor compression cycles
EP1340949A4 (de) * 2000-12-08 2009-08-12 Daikin Ind Ltd Kälteanlage
CN1492986A (zh) * 2001-02-21 2004-04-28 松下电器产业株式会社 冷冻循环装置
US6608867B2 (en) * 2001-03-30 2003-08-19 Koninklijke Philips Electronics N.V. Detection and proper scaling of interlaced moving areas in MPEG-2 compressed video
US6629488B2 (en) * 2001-06-06 2003-10-07 Whitemoss, Inc. Method and apparatus for controlling axial device
DE10138255B4 (de) * 2001-08-03 2012-06-06 Gea Grasso Gmbh Anordnung für Kaskadenkälteanlage
US6494054B1 (en) * 2001-08-16 2002-12-17 Praxair Technology, Inc. Multicomponent refrigeration fluid refrigeration system with auxiliary ammonia cascade circuit
US6817193B2 (en) * 2001-11-23 2004-11-16 Daimlerchrysler Ag Method for operating a refrigerant circuit, method for operating a motor vehicle driving engine, and refrigerant circuit
US6568199B1 (en) * 2002-01-22 2003-05-27 Carrier Corporation Method for optimizing coefficient of performance in a transcritical vapor compression system
US6698214B2 (en) * 2002-02-22 2004-03-02 Thar Technologies, Inc Method of refrigeration with enhanced cooling capacity and efficiency
US6698234B2 (en) * 2002-03-20 2004-03-02 Carrier Corporation Method for increasing efficiency of a vapor compression system by evaporator heating
US6557361B1 (en) * 2002-03-26 2003-05-06 Praxair Technology Inc. Method for operating a cascade refrigeration system
US6658888B2 (en) * 2002-04-10 2003-12-09 Carrier Corporation Method for increasing efficiency of a vapor compression system by compressor cooling
US6584802B1 (en) * 2002-04-16 2003-07-01 Monty J. Cofield Cooling apparatus employing carbon dioxide
US6647742B1 (en) * 2002-05-29 2003-11-18 Carrier Corporation Expander driven motor for auxiliary machinery
US6694763B2 (en) * 2002-05-30 2004-02-24 Praxair Technology, Inc. Method for operating a transcritical refrigeration system
JP3775358B2 (ja) * 2002-07-12 2006-05-17 ダイキン工業株式会社 冷凍装置
US6708511B2 (en) * 2002-08-13 2004-03-23 Delaware Capital Formation, Inc. Cooling device with subcooling system
TWI301188B (en) * 2002-08-30 2008-09-21 Sanyo Electric Co Refrigeant cycling device and compressor using the same
JP4242131B2 (ja) * 2002-10-18 2009-03-18 パナソニック株式会社 冷凍サイクル装置
US6986262B2 (en) * 2002-11-28 2006-01-17 Sanyo Electric Co., Ltd. Binary refrigeration unit
US6739141B1 (en) * 2003-02-12 2004-05-25 Carrier Corporation Supercritical pressure regulation of vapor compression system by use of gas cooler fluid pumping device
JP4321095B2 (ja) * 2003-04-09 2009-08-26 日立アプライアンス株式会社 冷凍サイクル装置
US6898941B2 (en) * 2003-06-16 2005-05-31 Carrier Corporation Supercritical pressure regulation of vapor compression system by regulation of expansion machine flowrate
US6968708B2 (en) * 2003-06-23 2005-11-29 Carrier Corporation Refrigeration system having variable speed fan
US7000413B2 (en) * 2003-06-26 2006-02-21 Carrier Corporation Control of refrigeration system to optimize coefficient of performance
US7028494B2 (en) * 2003-08-22 2006-04-18 Carrier Corporation Defrosting methodology for heat pump water heating system
US6923011B2 (en) * 2003-09-02 2005-08-02 Tecumseh Products Company Multi-stage vapor compression system with intermediate pressure vessel
US6813895B2 (en) * 2003-09-05 2004-11-09 Carrier Corporation Supercritical pressure regulation of vapor compression system by regulation of adaptive control
US6925821B2 (en) * 2003-12-02 2005-08-09 Carrier Corporation Method for extracting carbon dioxide for use as a refrigerant in a vapor compression system
US7024883B2 (en) * 2003-12-19 2006-04-11 Carrier Corporation Vapor compression systems using an accumulator to prevent over-pressurization
US7096679B2 (en) * 2003-12-23 2006-08-29 Tecumseh Products Company Transcritical vapor compression system and method of operating including refrigerant storage tank and non-variable expansion device
US7010925B2 (en) * 2004-06-07 2006-03-14 Carrier Corporation Method of controlling a carbon dioxide heat pump water heating system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0126673A1 (de) * 1983-05-10 1984-11-28 Ets Bonnet Kälteanlage mit zentralisierter Kälteproduktion
US4947655A (en) * 1984-01-11 1990-08-14 Copeland Corporation Refrigeration system
EP0431797A2 (de) * 1989-11-22 1991-06-12 James C. Labrecque Kühlungssystem
US5522233A (en) * 1994-12-21 1996-06-04 Carrier Corporation Makeup oil system for first stage oil separation in booster system
WO2006022829A1 (en) * 2004-08-09 2006-03-02 Carrier Corporation Co2 refrigeration circuit with sub-cooling of the liquid refrigerant against the receiver flash gas and method for operating the same

Also Published As

Publication number Publication date
EP1921399A2 (de) 2008-05-14
US20080289350A1 (en) 2008-11-27

Similar Documents

Publication Publication Date Title
EP1921399A3 (de) Zweistufiges transkritisches Kühlsystem
EP3379171A3 (de) Transkritisches system mit erhöhter unterkühlung für hohe umgebungstemperatur
WO2007142619B1 (en) Multi-stage compressor unit for a refrigeration system
WO2006009790A3 (en) Integrated heat exchanger for use in a refrigeration system
WO2011041374A3 (en) Cascade refrigeration system having at least one variable speed compressor
EP1862749A3 (de) Dampf-Kompressionskältezyklus
EP1757875A3 (de) Überkritischer Kältekreislauf
EP2280234A3 (de) Abtausystem und Verfahren für ein subkritisches Kaskaden-R-744-Kühlsystem
HK1107395A1 (en) Refrigeration circuit and method for operating a refrigeration circuit
EP2068099A3 (de) Kältekreislaufsystem, Erdgasverflüssigungsanlage, Wärmepumpensystem und Verfahren zum Nachrüsten des Kältekreislaufsystems
EP2682690A3 (de) Kühlschrank
TW200718910A (en) Refrigeration apparatus
EP2450647A3 (de) Klimaanlage
US20130283833A1 (en) Refrigeration System And Method For Operating A Refrigeration System
WO2006083329A3 (en) Refrigerating system with economizing cycle
WO2008111712A3 (en) Compression system and air conditioning system
EP2629032A3 (de) Einheitliche Wärmepumpenklimaanlage mit Wärmetauscher mit integriertem Akkumulator
EP1717528A3 (de) Vorrichtung mit einem Kühlkreislauf
WO2005024314A3 (en) Improvements in or relating to refrigeration
US8220289B2 (en) Refrigeration apparatus with internal heat exchanger for heat exchange
EP1635129A3 (de) Klimaanlage
EP1686323A3 (de) Wärmeübertrager für eine Klimaanlage
EP2159510A3 (de) Klimaanlage
EP2325579A3 (de) Wärmepumpe
EP2330367A3 (de) Kühlsystem

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

17P Request for examination filed

Effective date: 20100721

17Q First examination report despatched

Effective date: 20100819

AKX Designation fees paid

Designated state(s): ES GB

REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20101230