EP1921399A3 - Zweistufiges transkritisches Kühlsystem - Google Patents
Zweistufiges transkritisches Kühlsystem Download PDFInfo
- 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- Withdrawn
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—Component parts or details not otherwise provided for in this subclass
- F25B2400/04—Refrigeration circuit bypassing means
- F25B2400/0401—Refrigeration circuit bypassing means for 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—Component parts or details not otherwise provided for in this subclass
- 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—Component parts or details not otherwise provided for in this subclass
- 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—Component parts or details not otherwise provided for in this subclass
- 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—Component parts or details not otherwise provided for in this subclass
- 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—Component parts or details not otherwise provided for in this subclass
- 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)
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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10690389B2 (en) | 2008-10-23 | 2020-06-23 | Toromont Industries Ltd | CO2 refrigeration system |
Families Citing this family (16)
| 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 |
| 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 |
| US9664424B2 (en) | 2010-11-17 | 2017-05-30 | Hill Phoenix, Inc. | Cascade refrigeration system with modular ammonia chiller units |
| US9541311B2 (en) | 2010-11-17 | 2017-01-10 | 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 |
| EP2906881A4 (de) * | 2012-05-11 | 2016-04-13 | Hill Phoenix Inc | Co2-kühlsystem mit integriertem klimatisierungsmodul |
| 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 |
| US11656005B2 (en) | 2015-04-29 | 2023-05-23 | Gestion Marc-André Lesmerises Inc. | CO2 cooling system and method for operating same |
| US10429102B2 (en) | 2016-01-05 | 2019-10-01 | Carrier Corporation | Two phase loop distributed HVACandR system |
| WO2019094031A1 (en) * | 2017-11-10 | 2019-05-16 | Hussmann Corporation | Subcritical co2 refrigeration system using thermal storage |
| DK3737894T3 (da) * | 2018-01-11 | 2023-07-24 | Copeland Ind Lp | Kølesystem med dobbelt kaskade-varmeveksler og tilhørende driftsmetode |
| IT202000002878A1 (it) * | 2020-02-13 | 2021-08-13 | Arneg | Assieme espositore e procedimento per farlo funzionare. |
Citations (5)
| 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)
| 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 |
| JP3112003B2 (ja) * | 1998-12-25 | 2000-11-27 | ダイキン工業株式会社 | 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 |
| 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 |
| AU2109302A (en) * | 2000-12-08 | 2002-06-18 | Daikin Ind Ltd | Refrigerator |
| KR20030081454A (ko) * | 2001-02-21 | 2003-10-17 | 마츠시타 덴끼 산교 가부시키가이샤 | 냉동 사이클장치 |
| 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 |
-
2007
- 2007-11-13 EP EP07254445A patent/EP1921399A3/de not_active Withdrawn
- 2007-11-13 US US11/938,807 patent/US20080289350A1/en not_active Abandoned
Patent Citations (5)
| 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10690389B2 (en) | 2008-10-23 | 2020-06-23 | Toromont Industries Ltd | CO2 refrigeration system |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1921399A2 (de) | 2008-05-14 |
| US20080289350A1 (en) | 2008-11-27 |
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Legal Events
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