JP2005090762A - 定差圧弁 - Google Patents
定差圧弁 Download PDFInfo
- Publication number
- JP2005090762A JP2005090762A JP2003320508A JP2003320508A JP2005090762A JP 2005090762 A JP2005090762 A JP 2005090762A JP 2003320508 A JP2003320508 A JP 2003320508A JP 2003320508 A JP2003320508 A JP 2003320508A JP 2005090762 A JP2005090762 A JP 2005090762A
- Authority
- JP
- Japan
- Prior art keywords
- differential pressure
- iron core
- pipe
- valve
- movable iron
- 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.)
- Granted
Links
- 230000001105 regulatory effect Effects 0.000 title abstract 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 67
- 239000003507 refrigerant Substances 0.000 claims description 54
- 238000005057 refrigeration Methods 0.000 claims description 19
- 239000007787 solid Substances 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- 230000008014 freezing Effects 0.000 abstract 2
- 238000007710 freezing Methods 0.000 abstract 2
- 238000011144 upstream manufacturing Methods 0.000 description 19
- 230000006837 decompression Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0644—One-way valve
- F16K31/0655—Lift valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0644—One-way valve
- F16K31/0651—One-way valve the fluid passing through the solenoid coil
-
- 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
-
- 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
- F25B41/345—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators by solenoids
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/028—Controlling a pressure difference
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/20—Control of fluid pressure characterised by the use of electric means
- G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
- G05D16/2013—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means
- G05D16/2022—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means actuated by a proportional solenoid
-
- 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
- F25B2600/2505—Fixed-differential control valves
-
- 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)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid Mechanics (AREA)
- Thermal Sciences (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
【解決手段】 本発明にかかる定差圧弁1においては、その本体を構成するパイプ2が差圧制御機構,可動鉄芯4,固定鉄芯3といった内部構造物を収容するとともに、冷凍サイクルの配管の一部を兼ねている。また、電磁コイル11を含むソレノイド部10がパイプ2を外側から取り囲むように配置される。このため、実質的に冷凍サイクルの配管そのものに差圧制御機構を一体的に組付けた構成となり、定差圧弁1全体の構成が非常に簡素化される。その結果、定差圧弁1の小型化を実現でき、それに伴った材料コスト及び製造コストの削減により、定差圧弁1の低コスト化を実現することができる。
【選択図】 図1
Description
次に、定差圧弁1の動作ついて説明する。図1は定差圧弁1における電磁コイル11の非通電時の状態を表し、図2は通電時の状態を表している。
(A−B)(P1−P2)=fs−f(i) ・・・(1)
となり、定差圧弁1の前後差圧(P1−P2)は、
P1−P2=(fs−f(i))/(A−B) ・・・(2)
となる。
2 パイプ
3 固定鉄芯
4 可動鉄芯
5 中実シャフト
6 ストッパ
7 筒状部材
10 ソレノイド部
11 電磁コイル
41 弁部
51 冷媒入口
72 弁座
81 スプリング
91 間隙流路
92 内部空間
Claims (3)
- 冷凍サイクルを循環する冷媒流路に設けられ、その冷媒の出入口の前後差圧が電磁コイルに供給する電流値により設定された一定の差圧になるように、冷媒の流量を制御する定差圧弁において、
前記冷媒流路の一部を構成するパイプと、
前記パイプ内に固定された筒状の固定鉄芯と、
前記パイプ内において前記固定鉄芯に対して前記パイプの軸方向に対向配置されるとともに、前記軸方向に進退可能に構成された筒状の可動鉄芯と、
前記パイプを外側から取り囲むように周設され、外部からの供給電流により前記可動鉄芯及び前記固定鉄芯を含む磁気回路を生成し、前記供給電流の電流値に応じた大きさの電磁力を発生させて前記可動鉄芯を前記固定鉄芯に対する所定の基準位置まで進退駆動させるための前記電磁コイルと、
前記パイプ内に設けられ、前記可動鉄芯を前記基準位置から進退させつつ開弁又は閉弁動作して内部流路断面を調整し、前記前後差圧が前記一定の差圧になるように冷媒の流量を制御する差圧制御機構と、
を備えたことを特徴とする定差圧弁。 - 前記差圧制御機構は、
前記パイプ内に設けられた固定通路の端部に設けられた弁座と、
前記可動鉄芯の進退駆動により前記弁座に着脱可能に構成され、開弁時に前記冷媒が前記弁座との間隙を介して下流側に流れるのを許容する弁体と、
を備え、
前記可動鉄芯の進退駆動により、前記弁体と前記弁座との間に形成される流路断面が調整されることにより、前記前後差圧を前記一定の差圧に保持するように構成されたことを特徴とする請求項1記載の定差圧弁。 - 柱状をなし、一端部側で前記可動鉄芯を外挿してこれを進退方向にガイドする一方、他端側が前記パイプ内に固定された中実シャフトを備え、
前記可動鉄芯は、
その先端部に前記弁座に着座可能な前記弁体の弁部を形成するとともに、前記パイプとの間に軸方向に沿った所定の間隙流路を形成する筒状の本体を有し、
さらに、前記中実シャフトとの間に、前記固定通路の流路断面よりも小さな断面を有し、前記固定通路に連通する所定の内部空間を形成するように構成されたことを特徴とする請求項2記載の定差圧弁。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003320508A JP4235515B2 (ja) | 2003-09-12 | 2003-09-12 | 定差圧弁 |
US10/935,284 US7047763B2 (en) | 2003-09-12 | 2004-09-08 | Constant differential pressure valve |
DE602004017688T DE602004017688D1 (de) | 2003-09-12 | 2004-09-10 | Konstantdifferential Druckventil |
EP04021619A EP1522803B1 (en) | 2003-09-12 | 2004-09-10 | Constant differential pressure valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003320508A JP4235515B2 (ja) | 2003-09-12 | 2003-09-12 | 定差圧弁 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005090762A true JP2005090762A (ja) | 2005-04-07 |
JP4235515B2 JP4235515B2 (ja) | 2009-03-11 |
Family
ID=34269925
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003320508A Expired - Fee Related JP4235515B2 (ja) | 2003-09-12 | 2003-09-12 | 定差圧弁 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7047763B2 (ja) |
EP (1) | EP1522803B1 (ja) |
JP (1) | JP4235515B2 (ja) |
DE (1) | DE602004017688D1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011114991A1 (ja) * | 2010-03-18 | 2011-09-22 | 富士電機株式会社 | 電子膨張弁 |
CN102338239A (zh) * | 2010-07-16 | 2012-02-01 | 辽宁科技大学 | 一种色谱专用电磁阀 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4609336B2 (ja) * | 2006-02-08 | 2011-01-12 | 株式会社デンソー | 電磁弁 |
DE102007031981B4 (de) * | 2007-07-10 | 2023-01-12 | Robert Bosch Gmbh | Magnetventil |
DE102008033212A1 (de) * | 2008-07-15 | 2010-01-21 | Eaton Fluid Power Gmbh | Integration eines Ap-Expansionsventils zur COP-optimalen Regelung in einem hochdruckseitigen Anschluss, insbesondere in einem inneren Wärmeaustauscher |
US9453585B2 (en) * | 2011-11-04 | 2016-09-27 | Toyota Jidosha Kabushiki Kaisha | Electromagnetic linear valve |
CN102943902B (zh) * | 2012-12-06 | 2014-04-09 | 重庆华渝电气仪表总厂 | 气压abs调节阀 |
EP2952834A1 (en) * | 2014-06-04 | 2015-12-09 | Danfoss A/S | Electronic expansion valve and methods for calibrating an electronic expansion valve |
JP6478958B2 (ja) * | 2016-09-02 | 2019-03-06 | 株式会社不二工機 | 制御弁 |
RU196802U1 (ru) * | 2019-07-23 | 2020-03-16 | Федеральное государственное бюджетное образовательное учреждение высшего образования ФГБОУ ВО "Астраханский государственный технический университет" | Термоэлектрический регулирующий вентиль |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4638973A (en) | 1985-11-14 | 1987-01-27 | Eaton Corporation | Inline solenoid operated slide valve |
JPH04272589A (ja) | 1991-02-25 | 1992-09-29 | T G K:Kk | 流量調整弁 |
US5526837A (en) * | 1994-12-01 | 1996-06-18 | Robertshaw Controls Company | Solenoid controlled one-way valve |
US5487407A (en) * | 1994-12-01 | 1996-01-30 | Robertshaw Controls Company | Solenoid controlled one-way valve |
JP2848812B2 (ja) | 1996-09-13 | 1999-01-20 | 日本ランコ株式会社 | 電動膨張弁 |
JPH11316068A (ja) | 1998-05-07 | 1999-11-16 | Tgk Co Ltd | 膨張弁 |
US6182457B1 (en) | 1999-06-02 | 2001-02-06 | Ranco Incorporated Of Delaware | Electronic variable orifice tube and system for use therewith |
JP3880280B2 (ja) | 2000-03-27 | 2007-02-14 | 株式会社テージーケー | パイロット可変圧力制御弁 |
US6367283B1 (en) | 2000-04-14 | 2002-04-09 | Ranco Incorporated | Three-stage electronically variable orifice tube |
-
2003
- 2003-09-12 JP JP2003320508A patent/JP4235515B2/ja not_active Expired - Fee Related
-
2004
- 2004-09-08 US US10/935,284 patent/US7047763B2/en not_active Expired - Fee Related
- 2004-09-10 DE DE602004017688T patent/DE602004017688D1/de not_active Expired - Fee Related
- 2004-09-10 EP EP04021619A patent/EP1522803B1/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011114991A1 (ja) * | 2010-03-18 | 2011-09-22 | 富士電機株式会社 | 電子膨張弁 |
JP2011196428A (ja) * | 2010-03-18 | 2011-10-06 | Fuji Electric Co Ltd | 電子膨張弁 |
US8857788B2 (en) | 2010-03-18 | 2014-10-14 | Fuji Electric Co., Ltd. | Electronic expansion valve |
CN102338239A (zh) * | 2010-07-16 | 2012-02-01 | 辽宁科技大学 | 一种色谱专用电磁阀 |
Also Published As
Publication number | Publication date |
---|---|
US20050056050A1 (en) | 2005-03-17 |
US7047763B2 (en) | 2006-05-23 |
DE602004017688D1 (de) | 2008-12-24 |
JP4235515B2 (ja) | 2009-03-11 |
EP1522803A1 (en) | 2005-04-13 |
EP1522803B1 (en) | 2008-11-12 |
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