JP5802540B2 - 複合弁 - Google Patents
複合弁 Download PDFInfo
- Publication number
- JP5802540B2 JP5802540B2 JP2011273975A JP2011273975A JP5802540B2 JP 5802540 B2 JP5802540 B2 JP 5802540B2 JP 2011273975 A JP2011273975 A JP 2011273975A JP 2011273975 A JP2011273975 A JP 2011273975A JP 5802540 B2 JP5802540 B2 JP 5802540B2
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- valve
- valve body
- pilot
- chamber
- flow rate
- Prior art date
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- 150000001875 compounds Chemical class 0.000 title description 4
- 239000002131 composite material Substances 0.000 claims description 30
- 238000003780 insertion Methods 0.000 claims description 18
- 230000037431 insertion Effects 0.000 claims description 18
- 230000001965 increasing effect Effects 0.000 claims description 16
- 238000004891 communication Methods 0.000 claims description 8
- 239000003507 refrigerant Substances 0.000 description 23
- 230000009467 reduction Effects 0.000 description 17
- 238000010438 heat treatment Methods 0.000 description 9
- 238000001816 cooling Methods 0.000 description 8
- 230000006872 improvement Effects 0.000 description 7
- 238000004378 air conditioning Methods 0.000 description 4
- 230000007257 malfunction Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 238000005549 size reduction Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
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
- 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
-
- 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
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
-
- 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
- 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
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
-
- 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
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
- F16K31/40—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor
- F16K31/406—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor acting on a piston
-
- 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
- F25B2341/06—Details of flow restrictors or expansion valves
- F25B2341/067—Expansion valves having a pilot valve
-
- 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
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7758—Pilot or servo controlled
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Fluid-Driven Valves (AREA)
- Electrically Driven Valve-Operating Means (AREA)
- Multiple-Way Valves (AREA)
Description
図示例の電動弁1’は、下側軸部25aと上側小径軸部25bを有する弁軸25と、弁室41を有する弁本体40と、この弁本体40にその下端部が密封接合されたキャン60と、このキャン60の内周に所定の間隙αをあけて配在されたロータ30(回転軸線О)と、このロータ30を回転駆動すべく前記キャン60に外嵌されたステータ50Aと、を備えている。
他の好ましい態様では、前記第1弁体に、前記第1弁室と前記背圧室とを連通する均圧孔が設けられる。
図1〜図3は、本発明に係る複合弁の一実施例を示す主要部拡大断面図であり、各図は異なる動作状態を示している。図示実施例の複合弁1のステッピングモータ(アクチュエータ)50部分は、図4に示される従来の電動弁1’のものとほぼ同じであるので、該部分は省略している。
閉弁力 = P2×Ap+Pf < 開弁力=P1×(Ap−Av)+P3×Av
となる。
したがって、前記第2弁体24(弁軸25)の場合と同様に、パイロット弁体20を閉弁方向に付勢するパイロット閉弁ばね26Aのばね荷重をあまり大きくせずとも、パイロット弁体20が不所望に開弁してしまうことを確実に防止でき、パイロット通路19の内径やパイロット弁座(半球状弁体部20aで閉塞される下流縦孔19bの開口部)の口径等に対する制約を緩くでき、その結果、コスト低減、小型化、消費電力の低減等を図ることができる。
4A 大流量用第1制御弁
4B 小流量用第2制御弁
4C パイロット弁
5 流入口
6 流出口
10 弁本体
11 第1弁室
13 第1弁口
14 嵌挿室
15 第1弁体
16 背圧室
17 均圧孔
18 第1閉弁ばね
19 パイロット通路
19D パイロット弁体嵌挿穴
20 パイロット弁体
21 第2弁室
23 第2弁口
24 第2弁体
25 弁軸
25c 中間大径部
25g 掛止用肩面
26A パイロット閉弁ばね
27 パイロット弁体保持部材
29 縦穴連通路
30 ロータ
50 ステッピングモータ
50A ステータ
Claims (3)
- 第1弁体と、第2弁体が設けられた弁軸と、該弁軸を昇降させるための昇降駆動手段と、前記弁軸の昇降動作を利用して開閉駆動されるパイロット弁体と、流入口及び流出口が設けられた弁本体と、を備え、
前記弁本体における前記流入口と流出口との間に、前記第1弁体が摺動自在に嵌挿されるとともに、該第1弁体により背圧室と第1弁室とに仕切られた嵌挿室と、前記第1弁室に開口する第1弁口と、前記パイロット弁体及び第2弁体が昇降可能に配在された第2弁室と、前記流入口ないし第1弁室と前記第2弁室とを連通する連通路と、前記第2弁室と前記流出口とを連通する第2弁口と、前記背圧室と前記流出口とを連通するパイロット通路と、が設けられ、
前記第1弁体と前記第2弁体とは同一方向に昇降するように配在されるとともに、相互に所定距離だけ離隔せしめられており、
前記第2弁体のリフト量が所定量以下のときは、前記パイロット弁体により前記パイロット通路が閉じられるとともに、前記第1弁体により前記第1弁口が閉じられ、前記第2弁体のリフト量に応じて流量が制御される小流量制御状態をとり、前記第2弁体のリフト量が前記所定量を超えると、前記弁軸の上昇に伴って前記パイロット弁体が上昇せしめられて前記パイロット通路を開き、これに伴い前記第1弁体が前記第1弁口を開く大流量制御状態をとるように構成された複合弁。 - 前記パイロット弁体は、前記パイロット通路を閉じるべくばね部材により下方に付勢されるとともに、前記第2弁体のリフト量が前記所定量からさらに増大せしめられると、前記弁軸に設けられた引っ掛け部により前記ばね部材の付勢力に抗して引き上げられるようにされていることを特徴とする請求項1に記載の複合弁。
- 前記第1弁体に、前記第1弁室と前記背圧室とを連通する均圧孔が設けられていることを特徴とする請求項1又は2に記載の電動弁。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011273975A JP5802540B2 (ja) | 2011-12-15 | 2011-12-15 | 複合弁 |
CN201210445873.4A CN103161978B (zh) | 2011-12-15 | 2012-11-08 | 组合阀 |
EP12195188.3A EP2604951B1 (en) | 2011-12-15 | 2012-12-03 | Composite valve |
US13/711,777 US9109716B2 (en) | 2011-12-15 | 2012-12-12 | Composite valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011273975A JP5802540B2 (ja) | 2011-12-15 | 2011-12-15 | 複合弁 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2013124723A JP2013124723A (ja) | 2013-06-24 |
JP5802540B2 true JP5802540B2 (ja) | 2015-10-28 |
Family
ID=47296968
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2011273975A Active JP5802540B2 (ja) | 2011-12-15 | 2011-12-15 | 複合弁 |
Country Status (4)
Country | Link |
---|---|
US (1) | US9109716B2 (ja) |
EP (1) | EP2604951B1 (ja) |
JP (1) | JP5802540B2 (ja) |
CN (1) | CN103161978B (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5647844B2 (ja) * | 2010-09-22 | 2015-01-07 | 株式会社不二工機 | 電動弁 |
JP5881451B2 (ja) * | 2012-02-14 | 2016-03-09 | 株式会社不二工機 | 複合弁 |
JP5881452B2 (ja) * | 2012-02-14 | 2016-03-09 | 株式会社不二工機 | 複合弁 |
JP6280765B2 (ja) * | 2014-02-20 | 2018-02-14 | 株式会社フジキン | 弁体および高温用弁 |
JP2015224649A (ja) * | 2014-05-26 | 2015-12-14 | 株式会社不二工機 | 二段パイロット式電磁弁 |
US10288182B2 (en) * | 2015-06-10 | 2019-05-14 | Parker-Hannifin Corporation | Low leakage relief valve |
DE102016103789A1 (de) * | 2016-03-03 | 2017-09-07 | Otto Egelhof Gmbh & Co. Kg | Regelventil und Verfahren zur Ansteuerung eines solchen Regelventils für einen Fluidkreislauf |
CN110017400B (zh) * | 2018-01-10 | 2021-09-28 | 盾安汽车热管理科技有限公司 | 一种降低开阀噪音的电磁阀 |
CN111637230B (zh) * | 2020-05-22 | 2021-03-30 | 杭州易超新能源汽车科技有限公司 | 一种新型组合阀 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2317639A (en) * | 1940-05-14 | 1943-04-27 | William A Ray | Fluid control valve |
JPS50118524U (ja) * | 1974-03-12 | 1975-09-27 | ||
US4172466A (en) * | 1977-07-01 | 1979-10-30 | Target Rock Corporation | Self-actuated pilot-controlled safety valve |
US4201362A (en) * | 1978-06-30 | 1980-05-06 | Kabushiki Kaisha Saginomiya Seisakusho | Electromagnetic pilot type valve |
FR2457555B1 (fr) * | 1979-05-25 | 1985-05-31 | Alsthom Cgee | Dispositif pour stabiliser la pression du gaz d'un disjoncteur pneumatique |
IT1131475B (it) * | 1980-05-08 | 1986-06-25 | Sigma Idraul Gen Macch Access | Organo d'intercettazione telecomandabile ad intervento autoselettivo per condotte in pressione |
US5417402A (en) * | 1994-02-10 | 1995-05-23 | Alliedsignal Inc. | Shutoff and pressure regulating valve |
JPH10132132A (ja) * | 1996-10-24 | 1998-05-22 | Nichiden Kogyo Kk | ガソリン供給用電磁弁 |
JP3799732B2 (ja) | 1997-04-17 | 2006-07-19 | 株式会社デンソー | 空調装置 |
JP2004076920A (ja) * | 2002-08-22 | 2004-03-11 | Tgk Co Ltd | 差圧制御弁 |
US6923204B2 (en) * | 2003-04-10 | 2005-08-02 | Honeywell International Inc. | Diaphragm-operated fluid flow control valve providing a plurality of flow levels |
JP4416528B2 (ja) * | 2004-02-04 | 2010-02-17 | 株式会社不二工機 | 流量制御弁 |
JP5738029B2 (ja) * | 2011-03-25 | 2015-06-17 | 株式会社不二工機 | 複合弁 |
-
2011
- 2011-12-15 JP JP2011273975A patent/JP5802540B2/ja active Active
-
2012
- 2012-11-08 CN CN201210445873.4A patent/CN103161978B/zh active Active
- 2012-12-03 EP EP12195188.3A patent/EP2604951B1/en active Active
- 2012-12-12 US US13/711,777 patent/US9109716B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US9109716B2 (en) | 2015-08-18 |
CN103161978A (zh) | 2013-06-19 |
EP2604951A3 (en) | 2014-03-19 |
EP2604951B1 (en) | 2019-06-05 |
US20130153056A1 (en) | 2013-06-20 |
JP2013124723A (ja) | 2013-06-24 |
CN103161978B (zh) | 2016-09-14 |
EP2604951A2 (en) | 2013-06-19 |
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