JP4348610B2 - 冷凍サイクル - Google Patents
冷凍サイクル Download PDFInfo
- Publication number
- JP4348610B2 JP4348610B2 JP2003337035A JP2003337035A JP4348610B2 JP 4348610 B2 JP4348610 B2 JP 4348610B2 JP 2003337035 A JP2003337035 A JP 2003337035A JP 2003337035 A JP2003337035 A JP 2003337035A JP 4348610 B2 JP4348610 B2 JP 4348610B2
- Authority
- JP
- Japan
- Prior art keywords
- evaporator
- refrigerant
- flow rate
- refrigeration cycle
- expansion device
- 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.)
- Expired - Fee Related
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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
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- 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
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- 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
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- 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
- F25B2400/0409—Refrigeration circuit bypassing means for the 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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/17—Control issues by controlling the pressure of the condenser
-
- 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
- F25B2600/2501—Bypass 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
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
- F25B2600/2507—Flow-diverting valves
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)
- Air Conditioning Control Device (AREA)
Description
2 圧縮機
3 放熱器
4 膨張装置
5 第1の蒸発器
6 第2の蒸発器
7、9 流量調整弁
20 第1の膨張装置
21 第2の膨張装置
22 内部熱交換器
Claims (8)
- 冷媒を臨界圧力を超える圧力まで昇圧可能とする圧縮機と、
前記圧縮機で圧縮された冷媒を冷却する放熱器と、
前記放熱器出口側の圧力を前記放熱器出口側の冷媒温度に基づき決定される所定圧力に制御するためのものであって単体で用いられる膨張装置と、
前記膨張装置で減圧された冷媒を蒸発させる第1及び第2の蒸発器と、
前記第1及び第2の蒸発器へ供給される冷媒の分配量を当該第1及び第2の蒸発器の双方に対し常に分配するようにしながら調節する流量調整手段とを有して構成されることを特徴とする冷凍サイクル。 - 前記第1の蒸発器と第2の蒸発器とは前記膨張装置の下流側で直列に接続され、前記流量調整手段は、上流側に配された蒸発器に供給される冷媒量と、下流側に配された蒸発器に供給される冷媒量とを調節するものであることを特徴とする請求項1記載の冷凍サイクル。
- 前記流量調整手段は、前記第1の蒸発器と前記第2の蒸発器のうち上流側に配された蒸発器の過熱度が一定となるように分配量が制御されるものであることを特徴とする請求項2記載の冷凍サイクル。
- 前記第1の蒸発器と第2の蒸発器とは前記膨張装置の下流側で並列に接続され、流量調整手段は、それぞれの蒸発器へ供給される冷媒量を調節するものであることを特徴とする請求項1記載の冷凍サイクル。
- 前記流量調整手段は、一方の蒸発器の過熱度が一定となるように分配量が制御されるものであることを特徴とする請求項4記載の冷凍サイクル。
- 前記流量調整手段は、前記第1の蒸発器へ供給される流量と前記第2の蒸発器へ供給される流量とを同時に調節する三方弁によって構成されていることを特徴とする請求項2又は4記載の冷凍サイクル。
- 前記流量調整手段は、一方の蒸発器へ供給される流量を調節することで他方の蒸発器への供給量を調節する二方弁によって構成されていることを特徴とする請求項2又は4記載の冷凍サイクル。
- 前記冷凍サイクルは、二酸化炭素を冷媒とする超臨界蒸気圧縮式冷凍サイクルであることを特徴とする請求項1記載の冷凍サイクル。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003337035A JP4348610B2 (ja) | 2003-09-29 | 2003-09-29 | 冷凍サイクル |
EP20040022996 EP1519123A3 (en) | 2003-09-29 | 2004-09-28 | Cooling cycle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003337035A JP4348610B2 (ja) | 2003-09-29 | 2003-09-29 | 冷凍サイクル |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005106318A JP2005106318A (ja) | 2005-04-21 |
JP4348610B2 true JP4348610B2 (ja) | 2009-10-21 |
Family
ID=34191552
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003337035A Expired - Fee Related JP4348610B2 (ja) | 2003-09-29 | 2003-09-29 | 冷凍サイクル |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1519123A3 (ja) |
JP (1) | JP4348610B2 (ja) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006062834B4 (de) | 2005-06-30 | 2016-07-14 | Denso Corporation | Ejektorkreislaufsystem |
JP5217121B2 (ja) * | 2005-06-30 | 2013-06-19 | 株式会社デンソー | エジェクタ式冷凍サイクル |
JP4600212B2 (ja) | 2005-08-23 | 2010-12-15 | 株式会社デンソー | 超臨界冷凍サイクル装置 |
JP4209881B2 (ja) * | 2005-10-18 | 2009-01-14 | 三星電子株式会社 | 空気調和装置 |
FR2895786B1 (fr) * | 2006-01-04 | 2008-04-11 | Valeo Systemes Thermiques | Module de detente pour installation de climatisation a deux evaporateurs |
JP2007071529A (ja) * | 2006-09-08 | 2007-03-22 | Denso Corp | 冷凍サイクル装置 |
JP2008157305A (ja) | 2006-12-21 | 2008-07-10 | Denso Corp | 圧力制御弁および超臨界冷凍サイクル |
DE202009002222U1 (de) * | 2009-02-16 | 2009-04-23 | BSH Bosch und Siemens Hausgeräte GmbH | Kältegerät mit mehreren Fächern |
DE102010033518A1 (de) * | 2010-08-05 | 2012-02-09 | Gm Global Technology Operations Llc (N.D.Ges.D. Staates Delaware) | Klimaanlage und Verfahren zum Betreiben einer Klimaanlage |
DE102011109506B4 (de) * | 2011-08-05 | 2019-12-05 | Audi Ag | Kältemittelkreislauf |
US9605885B2 (en) * | 2013-03-14 | 2017-03-28 | Mitsubishi Electric Corporation | Air conditioning system including pressure control device and bypass valve |
FR3043762B1 (fr) * | 2015-11-13 | 2019-10-18 | Valeo Systemes Thermiques | Systeme de pompe a chaleur avec valve d'expansion electrique pour un controle ameliore de l'humidite dans un habitacle |
JP7386613B2 (ja) * | 2019-02-26 | 2023-11-27 | 三菱電機株式会社 | 熱交換器およびそれを備えた空気調和機 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1908722B1 (de) * | 1969-02-21 | 1970-08-20 | Aeg | Kuehl- oder Gefriermoebel mit Schnellgefriereinrichtung |
US4644756A (en) * | 1983-12-21 | 1987-02-24 | Daikin Industries, Ltd. | Multi-room type air conditioner |
US5444987A (en) * | 1993-07-02 | 1995-08-29 | Alsenz; Richard H. | Refrigeration system utilizing a jet enthalpy compressor for elevating the suction line pressure |
US6438978B1 (en) * | 1998-01-07 | 2002-08-27 | General Electric Company | Refrigeration system |
JP4045654B2 (ja) | 1998-07-15 | 2008-02-13 | 株式会社日本自動車部品総合研究所 | 超臨界冷凍サイクル |
JP2000065430A (ja) * | 1998-08-18 | 2000-03-03 | Nippon Soken Inc | 蒸気圧縮式冷凍サイクル |
JP2003139422A (ja) * | 2001-10-31 | 2003-05-14 | Daikin Ind Ltd | 冷凍機 |
-
2003
- 2003-09-29 JP JP2003337035A patent/JP4348610B2/ja not_active Expired - Fee Related
-
2004
- 2004-09-28 EP EP20040022996 patent/EP1519123A3/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
JP2005106318A (ja) | 2005-04-21 |
EP1519123A2 (en) | 2005-03-30 |
EP1519123A3 (en) | 2015-05-13 |
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