JP2005233025A - エジェクタ - Google Patents
エジェクタ Download PDFInfo
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- JP2005233025A JP2005233025A JP2004041164A JP2004041164A JP2005233025A JP 2005233025 A JP2005233025 A JP 2005233025A JP 2004041164 A JP2004041164 A JP 2004041164A JP 2004041164 A JP2004041164 A JP 2004041164A JP 2005233025 A JP2005233025 A JP 2005233025A
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- 239000003507 refrigerant Substances 0.000 claims abstract description 90
- 239000012530 fluid Substances 0.000 claims description 41
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 10
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 5
- 239000001569 carbon dioxide Substances 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 abstract description 14
- 239000012071 phase Substances 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 9
- 239000007788 liquid Substances 0.000 description 9
- 239000007791 liquid phase Substances 0.000 description 6
- 238000005057 refrigeration Methods 0.000 description 5
- 230000006837 decompression Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 239000002826 coolant Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000012808 vapor phase Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 239000007792 gaseous phase Substances 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
- F04F5/46—Arrangements of nozzles
- F04F5/461—Adjustable nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17596—Ink pumps, ink 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
- F25B41/00—Fluid-circulation arrangements
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H2001/3286—Constructional features
- B60H2001/3298—Ejector-type refrigerant circuits
-
- 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
- F25B2341/00—Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves
- F25B2341/001—Ejectors not being used as compression device
- F25B2341/0011—Ejectors with the cooled primary flow at reduced or low 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
- F25B2341/00—Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves
- F25B2341/001—Ejectors not being used as compression device
- F25B2341/0013—Ejector control arrangements
-
- 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
- F25B2500/00—Problems to be solved
- F25B2500/01—Geometry problems, e.g. for reducing size
-
- 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
- F25B41/31—Expansion valves
- F25B41/34—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators
- F25B41/35—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators by rotary motors, e.g. by stepping motors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
【解決手段】 流入口17aから高圧冷媒が流入する高圧空間18と、高圧空間18から噴出口17bへ向かって高圧冷媒の通路面積を縮小する絞り部17cを有するノズル17と、絞り部17cの軸線方向Rに変位することにより、絞り部17cの開度を変化させるニードル弁19と、噴出口17bおよび気相冷媒流入口22aが配置される吸入空間22とを備えたエジェクタにおいて、ニードル弁19の噴出口と反対側端部19cを高圧空間18とは別の空間である反対側端部空間21に配置し、この反対側端部空間21と吸入空間22とを連通する。
【選択図】 図2
Description
ニードル弁(19)の噴出口側の端部(19b)が位置する空間と、噴出口とは反対側の端部(19c)が位置する空間が連通していることを特徴としている。
吸入空間(22)の流体流れ下流側部位には略一定の通路面積を有し、流体噴出口(17b)から噴出する流体と、第2流入口(22a)から吸引される流体が混合される混合部(23)が形成されており、反対側端部空間(21)を混合部(23)と連通したことを特徴としている。
本実施形態は、本発明に係るエジェクタを車両用空調装置の冷凍サイクルに適用したものであり、図1は本実施形態に係る冷凍サイクルの模式図である。本実施形態では冷媒として二酸化炭素(CO2)を使用しており、高圧側の冷媒圧力が冷媒の臨界圧力以上となる超臨界サイクルである。図1中、11は冷媒を吸入圧縮する圧縮機11である。この圧縮機11で高圧状態となった冷媒は放熱器12に流入する。放熱器12では冷媒が室外空気へ放熱する、言い換えると冷媒が室外空気により冷却される。
上述の第1実施形態では、ニードル弁19の噴出口と反対側端部19cが位置する反対側端部空間21と吸入空間22が連通している例を示したが、反対側端部空間21が連通する空間は吸入空間22に限られるものではなく、ニードル弁19の両端部19b、19cの圧力がほぼ同一となる空間であればよい。例えば、混合部23と連通していても同様の効果を発揮することができる。
17c…絞り部、18…高圧空間、19…ニードル弁、19b…噴出口側の端部、
19c噴出口とは反対側端部、21…反対側端部空間、22…吸入空間、
22a…第2流入口、23…混合部、R…絞り部の軸線方向、
R1…流体噴出口側方向、R2…流体噴出口とは反対側方向。
Claims (4)
- 流入口(17a)から高圧流体が流入する高圧空間(18)と、
前記高圧空間(18)から流体噴出口(17b)へ向かって前記高圧流体の通路面積を縮小する絞り部(17c)を有する絞り手段(17)と、
前記絞り部(17c)の軸線方向(R)に変位することにより、前記絞り部(17c)の開度を変化させるニードル弁(19)と、
流体が流入する第2流入口(22a)を有する空間であって、内部に前記噴出口(17b)が配置され、前記流体噴出口(17b)から高速で噴出する作動流体の巻き込み作用によって前記第2流入口(22a)から前記流体が吸引される吸入空間(22)とを備え、
前記ニードル弁(19)の前記噴出口側の端部(19b)が位置する空間と、前記噴出口とは反対側の端部(19c)が位置する空間が連通していることを特徴とするエジェクタ。 - 前記ニードル弁(19)の前記噴出口とは反対側の端部(19c)は、前記高圧空間(18)とは別の空間である反対側端部空間(21)に配置されており、
前記反対側端部空間(21)は、前記吸入空間(22)と連通していることを特徴とする請求項1に記載のエジェクタ。 - 前記ニードル弁(19)の前記噴出口とは反対側の端部(19c)は、前記高圧空間(18)とは別の空間である反対側端部空間(21)に配置されており、
前記吸入空間(22)の流体流れ下流側部位には略一定の通路面積を有し、前記噴出口(17b)から噴出する流体と、前記第2流入口(22a)から吸引される流体とが混合される混合部(23)が形成されており、
前記反対側端部空間(21)は、前記混合部(23)と連通していることを特徴とする請求項1に記載のエジェクタ。 - 前記流体は、冷媒である二酸化炭素(CO2)であることを特徴とする請求項1ないし3のいずれか1つに記載のエジェクタ。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004041164A JP4069880B2 (ja) | 2004-02-18 | 2004-02-18 | エジェクタ |
DE102005007108A DE102005007108A1 (de) | 2004-02-18 | 2005-02-16 | Ejector |
US11/060,618 US7207190B2 (en) | 2004-02-18 | 2005-02-17 | Ejector |
CNB2005100516618A CN1311206C (zh) | 2004-02-18 | 2005-02-18 | 喷射器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004041164A JP4069880B2 (ja) | 2004-02-18 | 2004-02-18 | エジェクタ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005233025A true JP2005233025A (ja) | 2005-09-02 |
JP4069880B2 JP4069880B2 (ja) | 2008-04-02 |
Family
ID=34879245
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004041164A Expired - Fee Related JP4069880B2 (ja) | 2004-02-18 | 2004-02-18 | エジェクタ |
Country Status (4)
Country | Link |
---|---|
US (1) | US7207190B2 (ja) |
JP (1) | JP4069880B2 (ja) |
CN (1) | CN1311206C (ja) |
DE (1) | DE102005007108A1 (ja) |
Cited By (4)
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CN102235782A (zh) * | 2010-04-26 | 2011-11-09 | 珠海格力电器股份有限公司 | 可调喷射器及采用该喷射器的热泵空调器系统 |
WO2014076903A1 (ja) * | 2012-11-16 | 2014-05-22 | 株式会社デンソー | エジェクタ |
US20170108256A1 (en) * | 2014-01-30 | 2017-04-20 | Carrier Corporation | Ejectors and Methods of Use |
JP2020526726A (ja) * | 2017-07-25 | 2020-08-31 | ロベルト・ボッシュ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツングRobert Bosch Gmbh | ガス状の媒体を制御するための調量弁およびジェットポンプユニット |
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CN100342187C (zh) * | 2005-12-01 | 2007-10-10 | 上海交通大学 | 替代制冷机节流元件的两相流喷射器 |
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US20130000348A1 (en) * | 2010-03-31 | 2013-01-03 | Mitsubishi Electric Corporation | Ejector, motive fluid foaming method, and refrigeration cycle apparatus |
DE102010031406B4 (de) * | 2010-07-15 | 2020-01-30 | Mahle International Gmbh | Verdampfervorrichtung |
WO2012012490A2 (en) * | 2010-07-23 | 2012-01-26 | Carrier Corporation | Ejector cycle |
CN102086941B (zh) * | 2010-08-27 | 2012-07-18 | 北京清华阳光能源开发有限责任公司 | 一种混水阀门 |
DK2718644T3 (da) * | 2011-06-10 | 2020-11-30 | Carrier Corp | Ejektor med drivstrømshvirvel |
EP2570753B1 (de) * | 2011-09-14 | 2022-06-08 | Engie Refrigeration GmbH | Wärmepumpe mit Ejektor |
CN102563944B (zh) * | 2012-01-19 | 2014-02-26 | 天津商业大学 | 自动调节引射流量的喷射器及其组成的制冷系统 |
JP6115345B2 (ja) | 2013-06-18 | 2017-04-19 | 株式会社デンソー | エジェクタ |
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JP2018178781A (ja) * | 2017-04-05 | 2018-11-15 | 株式会社デンソー | エジェクタ及びこれを用いた燃料電池システム並びに冷凍サイクルシステム |
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-
2004
- 2004-02-18 JP JP2004041164A patent/JP4069880B2/ja not_active Expired - Fee Related
-
2005
- 2005-02-16 DE DE102005007108A patent/DE102005007108A1/de not_active Ceased
- 2005-02-17 US US11/060,618 patent/US7207190B2/en active Active
- 2005-02-18 CN CNB2005100516618A patent/CN1311206C/zh not_active Expired - Fee Related
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102235782A (zh) * | 2010-04-26 | 2011-11-09 | 珠海格力电器股份有限公司 | 可调喷射器及采用该喷射器的热泵空调器系统 |
CN102235782B (zh) * | 2010-04-26 | 2013-11-13 | 珠海格力电器股份有限公司 | 可调喷射器及采用该喷射器的热泵空调器系统 |
WO2014076903A1 (ja) * | 2012-11-16 | 2014-05-22 | 株式会社デンソー | エジェクタ |
JP2014115069A (ja) * | 2012-11-16 | 2014-06-26 | Denso Corp | エジェクタ |
CN104797894A (zh) * | 2012-11-16 | 2015-07-22 | 株式会社电装 | 喷射器 |
US20170108256A1 (en) * | 2014-01-30 | 2017-04-20 | Carrier Corporation | Ejectors and Methods of Use |
JP2020526726A (ja) * | 2017-07-25 | 2020-08-31 | ロベルト・ボッシュ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツングRobert Bosch Gmbh | ガス状の媒体を制御するための調量弁およびジェットポンプユニット |
US11682776B2 (en) | 2017-07-25 | 2023-06-20 | Robert Bosch Gmbh | Metering valve and jet pump unit for controlling a gaseous medium |
Also Published As
Publication number | Publication date |
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DE102005007108A1 (de) | 2005-10-13 |
CN1311206C (zh) | 2007-04-18 |
JP4069880B2 (ja) | 2008-04-02 |
US7207190B2 (en) | 2007-04-24 |
CN1657845A (zh) | 2005-08-24 |
US20050188719A1 (en) | 2005-09-01 |
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