CN102102923A - Expansion valve - Google Patents
Expansion valve Download PDFInfo
- Publication number
- CN102102923A CN102102923A CN2010105073392A CN201010507339A CN102102923A CN 102102923 A CN102102923 A CN 102102923A CN 2010105073392 A CN2010105073392 A CN 2010105073392A CN 201010507339 A CN201010507339 A CN 201010507339A CN 102102923 A CN102102923 A CN 102102923A
- Authority
- CN
- China
- Prior art keywords
- valve
- air bubbles
- expansion valve
- ingress port
- valve member
- 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.)
- Pending
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Classifications
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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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
- F25B41/33—Expansion valves with the valve member being actuated by the fluid pressure, e.g. by the pressure of the refrigerant
- F25B41/335—Expansion valves with the valve member being actuated by the fluid pressure, e.g. by the pressure of the refrigerant via diaphragms
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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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
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- 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
- F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
- F16K7/10—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with inflatable member
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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
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
-
- 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
- B60H2001/3236—Cooling devices information from a variable is obtained
- B60H2001/3267—Cooling devices information from a variable is obtained related to the operation of an expansion valve
-
- 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
- F25B2500/12—Sound
-
- 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
- F25B2600/2513—Expansion valves
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- Temperature-Responsive Valves (AREA)
- Details Of Valves (AREA)
Abstract
The present invention provides an expansion valve which is used for realizing noise reduction. The expansion valve performs pressure reduction for the refrigerant in refrigeration circulation. A valve body (30) of the expansion valve is internally provided with an inlet port (321) for feeding high-pressure refrigerant and an outlet port (331). A valve chamber (25) is provided with a valve component (32b) for controlling the opening of a valve hole (32a). The inlet port (321) is provided with a rectifying component (100) with the function of an air bubble thinning component. The air bubbles contained in the high-pressure refrigerant is thinned and rectified for passing through the valve body (30) thereby reducing the noise caused by air bubble rupture.
Description
Technical field
The present invention relates to a kind of temperature-sensitive mechanism internally-arranged type expansion valve that in kind of refrigeration cycle, uses.
Background technology
In the past, the kind of refrigeration cycle about using in the aircondition that carries on automobile etc. was provided with space and distribution in order to omit, and used the temperature-sensitive mechanism internally-arranged type temperature expansion valve according to the throughput of adjustment cold-producing medium.
Fig. 6 is a cutaway view of representing an example of temperature-sensitive mechanism internally-arranged type expansion valve in the past, in valve body 30 with prism shape, be formed with the 1st path 32 and the 2nd path 34 up and down mutually with leaving, the 1st path 32 is for condensing in condenser 5 and the path of high pressure liquid refrigerant by liquid reservoir 6, and the vapor phase refrigerant that provides to the refrigerant inlet of compressor 4 from the refrigerant outlet of evaporimeter 8 is provided the 2nd path 34 streams.In addition, the 11st, pipe arrangement.
In entry 32, be provided with the ingress port 321 that imports liquid refrigerant, the valve chamber 35 that is communicated with of ingress port 321, the valve opening 32a that is located at this valve chamber 35 and the outlet port 331 that will derive to the outside because of the cold-producing medium that this valve opening 32a expands therewith.Porch at valve opening 32a is formed with valve seat, disposes valve member 32b in the face of this valve seat, and valve member 32b is by compression helical spring 32c and by towards the valve seat application of force.The lower end of valve chamber 35 is to the bottom surface of valve body 30 opening, and quilt seals with the stopper 37 that valve body 30 screws togather.
The valve member drive unit 36 that is used for driver's valve parts 32b is installed in the upper end of valve body 30.Valve member drive unit 36 has pressure action housing 36d, and the inner space of this pressure action housing 36d is divided into two pressure operating chamber 36b, 36c up and down by barrier film 36a.Pressure action housing 36d is connected with the 2nd path 34 by the balancing orifice 36e that the center line with respect to valve opening 32a forms with one heart.
In valve body 30, dispose the valve member drive rod 36f that below barrier film 36a, extends to valve opening 32a.Valve member drive rod 36f is set at the 1st path 32 and the slide-and-guide hole on the next door between the 2nd path 34 of valve body 30 and leads sliding freely along the vertical direction, and the lower end of valve member drive rod 36f and valve member 32b butt.In addition, the seal member 36g that prevents that cold-producing medium from leaking between the 1st path 32 and the 2nd path 34 is being installed on the above-mentioned next door.
Be filled with known barrier film drive fluid among the pressure operating chamber 36b above pressure action housing 36d, by valve member drive rod 36f and the barrier film 36a that is positioned at the 2nd path 34 and balancing orifice 36e, the heat of the vapor phase refrigerant of the 2nd path 34 of flowing through is delivered to this barrier film drive fluid.Barrier film drive fluid among the pressure operating chamber 36b of top gasifies because of the heat that is transmitted, and this gas pressure acts on the upper surface of barrier film 36a.Barrier film 36a produces upper and lower displacement according to the difference of the pressure that lower surface bore of the pressure of barrier film drive fluid on the surface that is applied to it and barrier film 36a.The upper and lower displacement of the central part of barrier film 36a is delivered to valve member 32b by support component 36h and valve member drive rod 36f, and valve member 32b is toward or away from respect to the valve seat of valve opening 32a.Its result, the refrigerant flow that flows to evaporimeter 8 is controlled.This expansion valve is disclosed in for example following patent documentation 1.
Patent documentation 1: TOHKEMY 2004-138292 communique
The problem that invention will solve
In this expansion valve, when compressor 4 starts, make refrigerant gas be attracted by compressor 4 and produce the phenomenon that pressure sharply reduces from the refrigerant gas of evaporimeter 8 in the 2nd path 34 that compressor 4 sides are returned, make the 2nd path 34 and the pressure differential of the pressure operating chamber 36b of valve member drive unit 36 become big, valve member 32b can make valve opening 32a standard-sized sheet hastily.Thus, in the high-pressure refrigerant that imports valve chamber 35 by the 1st path 32, produce a large amount of bubbles, can produce harsh noise because bubble breaks.
Summary of the invention
The purpose of this invention is to provide a kind of expansion valve of eliminating above-mentioned bad phenomenon.
Solve the means of problem
In order to achieve the above object, expansion valve of the present invention has: valve body, this valve body have will in condenser, condense the ingress port, the valve chamber that is communicated with this ingress port that import of high-pressure refrigerant, be located at valve opening in this valve chamber, the cold-producing medium that will expand because of this valve opening is to the outlet port of outside derivation and circulate the path of the cold-producing medium that returns to compressor from evaporimeter is arranged; Valve member, this valve member opens and closes described valve opening; And valve member drive unit, this valve member drive unit drives this valve member and controls the aperture of described valve opening, this expansion valve is characterised in that, at described ingress port or described outlet port or in described ingress port and described outlet port, is provided with the fining air bubbles parts.
And the rectification part that the fining air bubbles parts can adopt porous part for example or have a large amount of through holes constitutes.
As porous part, can adopt for example to have by the column skeleton is connected the metallic object of the continuous pore that forms three-dimensionally.In this case, increase in order to suppress crushing, the porosity of porous part is best more than 90%.In addition, under the situation of using porous part, in order to prevent that foreign matter from stopping up eyelet and crushing increases, the upstream side that is preferably in porous part is provided with filter.As such filter, for example netted thin slice can be formed coniform and form flange in its open end side, in this case, by compacting part flange is pressed between this compacting part and the fining air bubbles parts, thereby can operating characteristics well filter be fixed on the ingress port place by the ring-type that is pressed into ingress port.
In addition, for the aperture that reduces noise effectively, preferably make the fining air bubbles parts that are arranged on the ingress port place is 0.4mm to 1.0mm, for the aperture of the fining air bubbles parts that suppress the increase of crushing, preferably make to be arranged on the outlet port is 0.4mm to 2.0mm.
The effect of invention
Expansion valve of the present invention, since ingress port or the outlet port or ingress port and the outlet port be provided with the fining air bubbles parts, therefore can be with by the fining air bubbles in the high-pressure refrigerant in the valve body, reduce that bubble breaks and the generation of the noise that causes.
Description of drawings
Fig. 1 is the figure of expression one embodiment of the present of invention, (a) is that the master looks cutaway view, (b) is right view, (c) is left view.
Fig. 2 is the amplification view of rectification part of the expansion valve of Fig. 1.
Fig. 3 is the figure of expression other embodiment of the present invention, (a) is that the master looks cutaway view, (b) is right view, (c) is left view.
Fig. 4 is that the master of further expression other embodiment of the present invention looks cutaway view.
Fig. 5 is the partial enlarged drawing of Fig. 4.
Fig. 6 is the key diagram of the summary structure of expansion valve in the past.
Symbol description
30 valve bodies
32 the 1st paths
The 32a valve opening
The 32b valve member
321 ingress ports
331 outlet ports
34 the 2nd paths
35 valve chambers
36 valve member drive units
100 rectification parts
130 through holes
200 rectification parts
230 through holes
400 porous matter metallic objects
500 porous matter metallic objects
600 filters
620 fixed parts
630 porous matter metallic objects
The specific embodiment
In Fig. 1, in valve body 30, be provided with a pair of through hole 50 that extends abreast with refrigerant passage, this through hole 50 is used for expansion valve and other device assembles.In other structure, to the illustrated before identical position of structure in the past, the identical symbol of mark also omits explanation once more.
In expansion valve of the present invention, on the peristome that the valve chamber 35 ingress port 321 and the inside that imports high-pressure refrigerant is communicated with, insert the rectification part 100 with fining air bubbles functions of components is installed.This rectification part 100 for example adopts plastics to form, and shown in Fig. 2 (a), forms the discoid of step with large-diameter portion 110 and minor diameter part 120.In rectification part 100, be provided with axially extended a large amount of through hole 130.In embodiment as shown in the figure, have a through hole 130 that is arranged on central part and be arranged on eight through holes 130 on the concentric with it circumference, amount to nine through holes 130.The aperture size D of through hole 130
1Be set in 0.4mm between the 1.0mm.
Owing to have this rectification part 100, thereby a large amount of fining air bubbles that will especially when compressor start, in cold-producing medium, produce and rectification and import in the valve chamber 35, therefore can reduce the break generation of caused noise of bubble.
In addition, in the present embodiment, outlet port 331 sides that flow to the cold-producing medium of vaporizer side after by valve opening 32a also are equipped with rectification part 200.
This rectification part 200 for example adopts plastics to form, and shown in Fig. 2 (b), forms the discoid of step with large-diameter portion 210 and minor diameter part 220.In embodiment as shown in the figure, have a through hole 230 that is arranged on central part and be arranged on eight through holes 230 on the concentric with it circumference, amount to nine through holes 230.The aperture size D of through hole 230
2Be set in 0.4mm between the 2.0mm.In addition, in order to suppress the increase of the pressure loss, preferably make the diameter of the diameter of through hole 230 greater than the through hole 130 of rectification part 100.
Owing to have this rectification part 200, thereby will lead to vaporizer side by the fining air bubbles and the rectification of the big footpathization of valve opening 32a, so can realize reducing the bubble caused noise that breaks because of cold-producing medium.
Expansion valve of the present invention, the rectification part of the effect by will playing the fining air bubbles parts are arranged on ingress port 321 sides or outlet port 331 sides alternatively, perhaps are arranged on this two ports, 321,331 sides, thereby can realize the reduction of noise effectively.
In the embodiment shown in fig. 3, the fining air bubbles parts 400 that are installed in ingress port 321 places adopt discoid porous matter metallic object to constitute.Porous matter metallic object is made by powdery metals such as sintrered nickels, has by the skeleton with the triangular column to connect the passage that forms three-dimensionally, has the higher porosity (more than 90%).As this porous matter metallic object, can adopt for example porous matter metallic object (Japanese: セ Le メ Star ト) (registration mark) of Sumitomo Electrics Industry Ltd's manufacturing.In addition, fining air bubbles parts 400 use hole diameter parts the best between 0.4mm to 1.0mm, in the present embodiment, use hole diameter 0.9mm, several 27～33/inch of compartment, specific area 1250m
2/ m
3Parts.Owing to have this fining air bubbles parts 400, thereby will especially when compressor start, in cold-producing medium, send into valve chamber 35 behind a large amount of fining air bubbles that produce, therefore can realize reducing the bubble caused noise that breaks.
In addition, in the present embodiment, the fining air bubbles parts 500 that have with fining air bubbles parts 400 same structures also are installed in outlet port 331 sides.These fining air bubbles parts 500 adopt the porous matter metal material of aperture between 0.4mm to 2.0mm to constitute.In addition, in order to suppress the increase of the pressure loss, preferably make the hole diameter of the hole diameter of fining air bubbles parts 500 greater than fining air bubbles parts 400.
By being equipped with this fining air bubbles parts 500, thus will owing to cold-producing medium by valve opening 32a and the fining air bubbles of big footpathization and the vaporizer side that leads, so can realize reducing the bubble caused noise that breaks.
In embodiment as shown in Figure 4, the upstream side at the fining air bubbles parts 630 that are made of porous matter metallic object that are installed in ingress port 321 sides is provided with filter 600.This filter 600 is by being formed by the netted thin slice moulding that plastics or metal etc. constitute, as shown in Figure 5, have cone shape body 610 and be formed on the flange 612 of the open end side of this body 610, by compacting part 620 flange 612 is sandwiched between this compacting part 620 and the fining air bubbles parts 630 and fix by the ring-type that is pressed into ingress port 321.Thus, the eyelet that can suppress the porous matter metallic object 630 that causes because of the foreign matter in the cold-producing medium stops up and the increase of crushing.
More than concrete example of the present invention is illustrated, but the invention is not restricted to above-mentioned example, can implement various distortion to above-mentioned example without departing from the spirit and scope of the present invention.
Claims (11)
1. expansion valve, have: the cold-producing medium that valve body, this valve body have the ingress port that imports of high-pressure refrigerant that will condense, the valve chamber that is communicated with this ingress port, the valve opening of being located at this valve chamber in condenser, will expand because of this valve opening is to the outlet port of outside derivation and the path of the cold-producing medium that evaporimeter returns to compressor of associating that circulates; Valve member, this valve member opens and closes described valve opening; And the valve member drive unit, this valve member drive unit drives described valve member and controls the aperture of described valve opening,
This expansion valve is characterised in that, at described ingress port place, is provided with the fining air bubbles parts.
2. expansion valve, have: the cold-producing medium that valve body, this valve body have the ingress port that imports of high-pressure refrigerant that will condense, the valve chamber that is communicated with this ingress port, the valve opening of being located at this valve chamber in condenser, will expand because of this valve opening is to the outlet port of outside derivation and the path of the cold-producing medium that evaporimeter returns to compressor of associating that circulates; Valve member, this valve member opens and closes described valve opening; And the valve member drive unit, this valve member drive unit drives described valve member and controls the aperture of described valve opening,
This expansion valve is characterised in that, in described outlet port, is provided with the fining air bubbles parts.
3. expansion valve, have: the associate path of the cold-producing medium that evaporimeter returns to compressor of outlet port that the cold-producing medium that valve body, this valve body have the ingress port that is used for importing the high-pressure refrigerant that condenses at condenser, the valve chamber that is communicated with this ingress port, the valve opening of being located at this valve chamber, will expand because of this valve opening is derived to the outside and circulation; Valve member, this valve member opens and closes described valve opening; And the valve member drive unit, this valve member drive unit is used to drive described valve member and the aperture of controlling described valve opening,
This expansion valve is characterised in that, in described ingress port and described outlet port, is provided with the fining air bubbles parts.
4. as each described expansion valve of claim 1 to 3, it is characterized in that described fining air bubbles parts are porous part.
5. expansion valve as claimed in claim 4 is characterized in that, described porous part is the metallic object with continuous pore, and described continuous pore connects by the skeleton with column three-dimensionally and forms.
6. expansion valve as claimed in claim 5 is characterized in that, the porosity of described fining air bubbles parts is more than 90%.
7. as each described expansion valve of claim 4 to 6, it is characterized in that the upstream side at the fining air bubbles parts that are arranged on described ingress port place is provided with filter.
8. expansion valve as claimed in claim 7, it is characterized in that, described filter is to form netted thin slice coniform and form the parts of flange in its open end side, by compacting part described flange is sandwiched between this compacting part and the described fining air bubbles parts, thereby described filter is fixed in the described ingress port by the ring-type that is pressed into described ingress port.
9. as each described expansion valve of claim 1 to 3, it is characterized in that described fining air bubbles parts are the rectification parts with a large amount of through holes.
10. as claim 1,3,4,5,6,7, each described expansion valve of 8 and 9, it is characterized in that the aperture that is arranged on the fining air bubbles parts at described ingress port place is 0.4mm to 1.0mm.
11. each the described expansion valve as claim 2 to 10 is characterized in that the aperture that is arranged on the fining air bubbles parts of described outlet port is 0.4mm to 2.0mm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009-291154 | 2009-12-22 | ||
| JP2009291154A JP2011133139A (en) | 2009-12-22 | 2009-12-22 | Expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102102923A true CN102102923A (en) | 2011-06-22 |
Family
ID=44155869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105073392A Pending CN102102923A (en) | 2009-12-22 | 2010-09-29 | Expansion valve |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2011133139A (en) |
| KR (1) | KR20110073215A (en) |
| CN (1) | CN102102923A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102102924A (en) * | 2010-11-17 | 2011-06-22 | 上海星易汽车空调股份有限公司 | Structure for preventing noise and improving heat exchange performance in automotive air-conditioning heating power expansion valve |
| CN104567140A (en) * | 2014-12-16 | 2015-04-29 | 合肥三艾汽车配件有限公司 | Expansion valve |
| CN106440316A (en) * | 2016-08-31 | 2017-02-22 | 青岛海信日立空调系统有限公司 | Noise reduction device and air conditioner provided with same |
| CN111637234A (en) * | 2020-06-10 | 2020-09-08 | 浙江博威汽车空调有限公司 | Automobile expansion valve and processing technology thereof |
| CN112443668A (en) * | 2019-08-29 | 2021-03-05 | 浙江三花汽车零部件有限公司 | Expansion valve |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6071764B2 (en) * | 2013-06-07 | 2017-02-01 | 株式会社不二工機 | Expansion valve |
| US10060659B2 (en) | 2015-03-13 | 2018-08-28 | Denso International America, Inc. | Noise reduction insert for an evaporator |
| JP6722923B2 (en) * | 2015-12-21 | 2020-07-15 | 株式会社テージーケー | Expansion valve |
| CN107741110B (en) * | 2017-11-21 | 2023-11-14 | 珠海格力电器股份有限公司 | Expansion valve and refrigerating unit |
| JP7082798B2 (en) * | 2018-03-23 | 2022-06-09 | 株式会社不二工機 | Expansion valve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07146032A (en) * | 1993-11-26 | 1995-06-06 | Matsushita Seiko Co Ltd | Expansion valve |
| CN1123892A (en) * | 1994-11-17 | 1996-06-05 | 株式会社不二工机制作所 | Expension valve |
| JP2007162851A (en) * | 2005-12-14 | 2007-06-28 | Fuji Koki Corp | Motor operated valve |
| EP1816417A2 (en) * | 2006-02-07 | 2007-08-08 | TGK CO., Ltd. | Expansion device |
| CN101086296A (en) * | 2006-06-07 | 2007-12-12 | 株式会社Tgk | Expansion valve |
| CN101230935A (en) * | 2007-01-26 | 2008-07-30 | 株式会社不二工机 | Expansion valve |
| JP2009014292A (en) * | 2007-07-06 | 2009-01-22 | Zhejiang Chunhui Intelligent Control Co Ltd | Two throttle two-way expansion valve with filtering structure |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4465128B2 (en) * | 2001-04-26 | 2010-05-19 | ダイキン工業株式会社 | Expansion valve and air conditioner |
| JP2002350003A (en) * | 2001-05-22 | 2002-12-04 | Hitachi Ltd | Air conditioner |
| JP4064762B2 (en) * | 2001-09-07 | 2008-03-19 | 株式会社鷺宮製作所 | Throttle valve device and air conditioner |
| JP2006275452A (en) * | 2005-03-30 | 2006-10-12 | Mitsubishi Electric Corp | Expansion valve |
-
2009
- 2009-12-22 JP JP2009291154A patent/JP2011133139A/en active Pending
-
2010
- 2010-07-13 KR KR1020100067151A patent/KR20110073215A/en not_active Application Discontinuation
- 2010-09-29 CN CN2010105073392A patent/CN102102923A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07146032A (en) * | 1993-11-26 | 1995-06-06 | Matsushita Seiko Co Ltd | Expansion valve |
| CN1123892A (en) * | 1994-11-17 | 1996-06-05 | 株式会社不二工机制作所 | Expension valve |
| JP2007162851A (en) * | 2005-12-14 | 2007-06-28 | Fuji Koki Corp | Motor operated valve |
| EP1816417A2 (en) * | 2006-02-07 | 2007-08-08 | TGK CO., Ltd. | Expansion device |
| CN101086296A (en) * | 2006-06-07 | 2007-12-12 | 株式会社Tgk | Expansion valve |
| CN101230935A (en) * | 2007-01-26 | 2008-07-30 | 株式会社不二工机 | Expansion valve |
| JP2009014292A (en) * | 2007-07-06 | 2009-01-22 | Zhejiang Chunhui Intelligent Control Co Ltd | Two throttle two-way expansion valve with filtering structure |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102102924A (en) * | 2010-11-17 | 2011-06-22 | 上海星易汽车空调股份有限公司 | Structure for preventing noise and improving heat exchange performance in automotive air-conditioning heating power expansion valve |
| CN104567140A (en) * | 2014-12-16 | 2015-04-29 | 合肥三艾汽车配件有限公司 | Expansion valve |
| CN106440316A (en) * | 2016-08-31 | 2017-02-22 | 青岛海信日立空调系统有限公司 | Noise reduction device and air conditioner provided with same |
| CN112443668A (en) * | 2019-08-29 | 2021-03-05 | 浙江三花汽车零部件有限公司 | Expansion valve |
| CN111637234A (en) * | 2020-06-10 | 2020-09-08 | 浙江博威汽车空调有限公司 | Automobile expansion valve and processing technology thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20110073215A (en) | 2011-06-29 |
| JP2011133139A (en) | 2011-07-07 |
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Application publication date: 20110622 |