CN107741110A - Expansion valve and refrigeration unit - Google Patents
Expansion valve and refrigeration unit Download PDFInfo
- Publication number
- CN107741110A CN107741110A CN201711166065.3A CN201711166065A CN107741110A CN 107741110 A CN107741110 A CN 107741110A CN 201711166065 A CN201711166065 A CN 201711166065A CN 107741110 A CN107741110 A CN 107741110A
- Authority
- CN
- China
- Prior art keywords
- throttle
- deformation
- expansion valve
- valve block
- runner
- 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
- 238000005057 refrigeration Methods 0.000 title claims abstract description 18
- 238000009434 installation Methods 0.000 claims abstract description 43
- 239000011148 porous material Substances 0.000 claims description 26
- 230000000694 effects Effects 0.000 claims description 7
- 230000007704 transition Effects 0.000 claims description 3
- 239000003507 refrigerant Substances 0.000 description 19
- 238000010586 diagram Methods 0.000 description 4
- 230000004907 flux Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
Abstract
This application provides a kind of expansion valve and refrigeration unit.Wherein, the expansion valve includes valve body and can deformation valve block.There is runner in valve body, throttling installation portion is provided with runner, first segment discharge orifice is offered on the installation portion that throttles.Can deformation valve block be movably installed at throttling installation portion on, the second throttle orifice can be offered on deformation valve block.Can deformation valve block there is first throttle state and the second throttle：Under first throttle state, can deformation valve block cover first segment discharge orifice on throttling installation portion, block first segment discharge orifice to connect the runner at its both ends；Under the second throttle, can deformation valve block deform upon, and throttling installation portion on movable part avoid or completely avoid first segment discharge orifice so that first segment discharge orifice connects the runner at its both ends.Apply the technical scheme of the present invention, it is not necessary to open valve body, it is only necessary to using can deformation valve block itself can deformation characteristic, with regard to can deformation valve block be installed on valve body, it is easy for installation, quick.
Description
Technical field
The present invention relates to refrigeration technology field, in particular to a kind of expansion valve and refrigeration unit.
Background technology
Expansion valve important role in refrigeration unit, conventional several expansion valves have electric expansion valve, thermal expansion
Valve etc., play throttling action also including capillary etc..Expansion valve makes the liquid of high pressure-temperature be changed into low pressure medium temperature after throttling
Moist steam, heat is then absorbed in evaporator and reaches refrigeration.
Refrigeration unit includes refrigeration and heating mode substantially, and under both modes, the refrigerant in refrigeration unit has phase
Anti- circulation path.The expansion valve used at present impacts mainly by inner spool 2 in refrigerant different flow, moves up and down to control
The aperture of throttling.
Figures 1 and 2 show that existing expansion valve mechanism, the expansion valve mechanism includes valve element 2 and expansion valve body 1.Initially,
Valve element 2 and expansion valve body 1 are bonded, and when flow starts increase, because mobile space is left on the top of valve element 2, valve element 2 starts to moving up
Dynamic, the bypass flow channels around valve element 2 are just now in open mode, and refrigerant gradually increases throttle-flow.
Above-mentioned expansion valve mechanism, assemble up complex, it is necessary to which expansion valve body 1 is opened, then valve element 2 is put into
Go, afterwards again connect expansion valve body 1, assembling is complex.
The content of the invention
The embodiments of the invention provide a kind of expansion valve and refrigeration unit, dress be present to solve expansion valve of the prior art
The problem of with complexity.
The application embodiment provides a kind of expansion valve, including：Valve body, valve body is interior to have runner, is provided with runner
Throttled installation portion, and first segment discharge orifice is offered on the installation portion that throttles；Can deformation valve block, be movably installed at throttling installation portion
On, the second throttle orifice can be offered on deformation valve block, can deformation valve block there is first throttle state and the second throttle,
Under one throttle, can deformation valve block throttling installation portion on cover first segment discharge orifice, block first segment discharge orifice connect its both ends
Runner；Under the second throttle, can deformation valve block deform upon, and throttling installation portion on movable part avoid or it is complete
It is complete to avoid first segment discharge orifice so that first segment discharge orifice connects the runner at its both ends.
In one embodiment, the intercommunicating pore being adapted with first segment discharge orifice can be offered on deformation valve block, first
Under throttle, intercommunicating pore and first segment discharge orifice misplace, under the second throttle, intercommunicating pore activity to first throttle hole portion
Divide and overlap or be completely superposed.
In one embodiment, throttle installation portion on offer slot, can deformation valve block be movably inserted into slot
On, first segment discharge orifice runs through slot.
In one embodiment, multiple first segment discharge orifices are offered on throttling installation portion, can be offered on deformation valve block
The multiple intercommunicating pores being adapted with multiple first segment discharge orifices.
In one embodiment, throttle installation portion in a ring, under first throttle state, can deformation valve block be and throttling
The arc surfaced that installation portion is adapted, arc surfaced can deformation valve block center with annular throttling installation portion center it is corresponding.
In one embodiment, can the opposite direction shape protruded towards arc surfaced of deformation valve block under the second throttle
Become.
In one embodiment, first segment discharge orifice is circular arc, and intercommunicating pore is also circular arc.
In one embodiment, the second throttle orifice be opened in can be on deformation valve block circular hole.
In one embodiment, runner throttles on direction at it, cross-sectional area increase.
In one embodiment, runner includes first flow and second flow channel, on the throttling direction of runner, second
Road is located at the downstream of first flow, and the cross-sectional area of second flow channel is more than the cross-sectional area of first flow, and throttling installation portion is set
In second flow channel.
In one embodiment, runner also includes third flow channel, passes through the 3rd stream between first flow and second flow channel
Road transition, on the throttling direction of runner, third flow channel is gradual-enlargement type shape.
Present invention also provides a kind of refrigeration unit, including expansion valve, expansion valve is above-mentioned expansion valve.
In the above-described embodiments, and valve body need not be opened, it is only necessary to using can deformation valve block itself can deformation spy
Property, with regard to can deformation valve block be installed on valve body, it is easy for installation, quick.In use, under first throttle state, due to having
Can deformation valve block masking first segment discharge orifice, block first segment discharge orifice to connect the runner at its both ends, refrigerant can only be by can deformation valve
The second throttle orifice on piece circulates in runner.Under the second throttle, it can pacify in throttling after deformation valve block deforms upon
It is movable in dress portion, partly to avoid or avoid completely first segment discharge orifice so that first segment discharge orifice connects the runner at its both ends, cold
Matchmaker can just be circulated by partially and fully first segment discharge orifice and the second throttle orifice in runner.
Brief description of the drawings
The accompanying drawing for forming the part of the application is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate to be used to explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the structural representation that expansion valve of the prior art is in first throttle state；
Fig. 2 is that Fig. 1 expansion valve is in the structural representation of the second throttle；
Fig. 3 is the overlooking the structure diagram according to the embodiment of the expansion valve of the present invention；
Fig. 4 is first throttle status architecture schematic diagram of the embodiment of Fig. 3 expansion valve at Section A-A；
Fig. 5 is mplifying structure schematic diagram of the embodiment of Fig. 4 expansion valve at B；
Fig. 6 is second throttle structural representation of the embodiment of Fig. 3 expansion valve at Section A-A；
Fig. 7 is mplifying structure schematic diagram of the embodiment of Fig. 6 expansion valve at C.
Wherein, above-mentioned accompanying drawing marks including the following drawings：
10th, valve body；11st, runner；111st, first flow；112nd, second flow channel；113rd, third flow channel；12nd, throttle installation portion；
121st, first segment discharge orifice；122nd, slot；20th, can deformation valve block；21st, the second throttle orifice；22nd, intercommunicating pore.
Embodiment
It is right with reference to embodiment and accompanying drawing for the object, technical solutions and advantages of the present invention are more clearly understood
The present invention is described in further details.Here, the exemplary embodiment of the present invention and its illustrate to be used to explain the present invention, but simultaneously
It is not as a limitation of the invention.
Fig. 4, Fig. 5 and Fig. 7 show the embodiment of the expansion valve of the present invention, and the expansion valve includes valve body 10 and can deformation valve
Piece 20.There is runner 11 in valve body 10, throttling installation portion 12 is provided with runner 11, first segment is offered on the installation portion 12 that throttles
Discharge orifice 121.Can deformation valve block 20 be movably installed at throttling installation portion 12 on, the second throttling can be offered on deformation valve block 20
Hole 21.Can deformation valve block 20 there is first throttle state and the second throttle：, can deformation valve block 20 under first throttle state
First segment discharge orifice 121 is covered on throttling installation portion 12, blocks first segment discharge orifice 121 to connect the runner 11 at its both ends；Second
Under throttle, can deformation valve block 20 deform upon, and movable part avoids or avoided completely the on throttling installation portion 12
One throttle orifice 121 so that first segment discharge orifice 121 connects the runner 11 at its both ends.
Apply the technical scheme of the present invention, and valve body 10 need not be opened, it is only necessary to which utilizing can deformation valve block 20 itself
Can deformation characteristic, with regard to can deformation valve block 20 be installed on valve body 10, it is easy for installation, quick.In use, in first throttle
Under state, due to have can deformation valve block 20 cover first segment discharge orifice 121, block first segment discharge orifice 121 to connect the runner at its both ends
11, refrigerant can only be circulated by the second throttle orifice 21 that can be on deformation valve block 20 in runner 11., can under the second throttle
, can be movable on throttling installation portion 12 after deformation valve block 20 deforms upon, partly to avoid or avoid completely first segment discharge orifice
121 so that first segment discharge orifice 121 connect its both ends runner 11, refrigerant just can by partially and fully first segment discharge orifice 121 with
And second throttle orifice 21 circulate in the runner 11.
Under first throttle state, refrigerant can only be throttled by the second throttle orifice 21, electricity when this is few equivalent to refrigerant
Sub- expansion valve opening is smaller.When being gradually increased with cold medium flux, refrigerant impulsive force now starts to increase, can deformation valve block 20
Can be deflected under the second throttle, now, can deformation valve block 20 gradually avoid first segment discharge orifice 121 so that first segment discharge orifice
121 connect the runner 11 at its both ends, and refrigerant now, can also be from first segment discharge orifice 121 in addition to being throttled from the second throttle orifice 21
Flow through, function as the effect that electric expansion valve step number gradually increases., can deformation valve block 20 when cold medium flux reaches maximum
After maximum deformation occurs, first segment discharge orifice 121, state maximum stepping as electric expansion valve has reached now are avoided completely
Row throttling.After shutdown, can deformation valve block 20 because resilient force again itself return to first throttle state.
As a preferred embodiment, in the present embodiment, can deformation valve block 20 be made up of flexible material,
In order to which it returns to first throttle state.
As shown in Figure 4 and Figure 5, in the technical scheme of the present embodiment, can offer on deformation valve block 20 and first throttle
The intercommunicating pore 22 that hole 121 is adapted.Under first throttle state, intercommunicating pore 22 misplaces with first segment discharge orifice 121.Such as Fig. 6 and Fig. 7
Shown, under the second throttle, the activity of intercommunicating pore 22 extremely partially overlaps or is completely superposed with first segment discharge orifice 121.So,
By can the self-deformation of deformation valve block 20 can drive the activity of intercommunicating pore 22 thereon so that intercommunicating pore 22 can be with respect to first
Throttle orifice 121, which misplaces, either to be partially overlapped or is completely superposed, to control the throttle opening of expansion valve.In first throttle state
Under, refrigerant can only be throttled by the second throttle orifice 21, and electronic expansion valve opening is smaller when this is few equivalent to refrigerant.Work as refrigerant
When flow is gradually increased, refrigerant impulsive force now starts to increase, can deformation valve block 20 acted on by refrigerant impact, gradually by
Start deformation so that intercommunicating pore 22 can gradually partially overlap with first segment discharge orifice 121, and refrigerant now from second except throttling
Hole 21 can also be flowed through outside throttling from the overlapping region of intercommunicating pore 22 and first segment discharge orifice 121, function as electric expansion valve step
The effect that number gradually increases.When cold medium flux reaches maximum, intercommunicating pore 22 and first segment discharge orifice 121 are completely superposed, expansion valve
As electric expansion valve has reached, maximum step is throttled state now.In the present embodiment, can deformation valve block 20 deformation
The registration of amount and intercommunicating pore 22 and first segment discharge orifice 121 is mainly determined by the flow and pressure of refrigerant., can deformation valve after shutdown
Piece 20 itself returns to first throttle state again because of resilient force.
As shown in Figure 4 and Figure 5, can as a preferred embodiment, offering slot 122 on throttling installation portion 12
Deformation valve block 20 is movably inserted on slot 122, and first segment discharge orifice 121 runs through slot 122.When in use, by can shape
It is movable on slot 122 to become the deformation of valve block 20, to allow intercommunicating pore 22 to misplace or overlap with first segment discharge orifice 121.
As an alternative embodiment, as shown in figure 3, offer multiple first segment discharge orifices on throttling installation portion 12
121, the multiple intercommunicating pores 22 being adapted with multiple first segment discharge orifices 121 can be offered on deformation valve block 20.So, can improve
The aperture upper limit of expansion valve.
As shown in figure 3, in the technical scheme of the present embodiment, throttling installation portion 12 is arranged on the inwall of runner 11 in a ring
On, under first throttle state, can deformation valve block 20 be with the arc surfaced that is adapted of throttling installation portion 12, arc surfaced can deformation
The center of valve block 20 is corresponding with the center of the throttling installation portion 12 of annular.Using arc surfaced can deformation valve block 20, Ke Yirang
Can deformation valve block 20 after deformation, because of the mechanical balance characteristic of its own so that can deformation valve block 20 can return to throttling peace
The center position in dress portion 12.And be unlikely to the center deviation of relative throttling installation portion 12 so that can deformation valve block 20 first
First segment discharge orifice 121 can be covered under throttle all the time, ensures the aperture regulation performance of expansion valve.As shown in Figure 4 and Figure 5,
, can the opposite direction deformation protruded towards arc surfaced of deformation valve block 20 under the second throttle.With can deformation valve block 20 shape
Become, can deformation valve block 20 gradually start to extend to surrounding from arc surfaced, and then drive intercommunicating pore 22 movable in slot 122, with
Intercommunicating pore 22 is allowed to partially overlap or be completely superposed with first segment discharge orifice 121.
As an alternative embodiment, in the technical scheme of the present embodiment, as shown in figure 3, first segment discharge orifice 121
For circular arc, intercommunicating pore 22 is also circular arc.As other optional embodiments, first segment discharge orifice 121 can be circle,
Intercommunicating pore 22 is matched circle.Certainly, as feasible embodiment, the He of first segment discharge orifice 121 of other shapes
Intercommunicating pore 22 is also feasible.
As shown in figure 3, in the technical scheme of the present embodiment, the second throttle orifice 21 can be on deformation valve block 20 to be opened in
Circular hole.Optionally, as other embodiments, the second throttle orifice 21 is that other shapes are also feasible, only circular hole
Stress can be more uniform, it is not easy to produces stress concentration point.Optionally, be opened in can be in deformation valve block 20 for the second throttle orifice 21
Heart position.
As shown in figure 4, in the technical scheme of the present embodiment, runner 11 throttles on direction at it, cross-sectional area increase, this
Sample helps to strengthen the restriction effect of expansion valve.Optionally, as shown in figure 4, runner 11 includes first flow 111 and second flow channel
112, on the throttling direction of runner 11, second flow channel 112 is located at the downstream of first flow 111.The cross section of second flow channel 112
More than the cross-sectional area of first flow 111, the installation portion 12 that throttles is arranged in second flow channel 112 product.Preferably, runner 11 also wraps
Include third flow channel 113.By the transition of third flow channel 113 between first flow 111 and second flow channel 112, in the throttling of runner 11
On direction, third flow channel 113 is gradual-enlargement type shape.By third flow channel 113 cross-sectional area of runner 11 can be allowed to change more
Add smoothness, contribute to the flowing of refrigerant in runner 11.
Present invention also offers a kind of refrigeration unit, the refrigeration unit includes above-mentioned expansion valve.Using the expansion valve
Refrigeration unit, because the assembling of expansion valve is more convenient, fast, the manufacturing cost of refrigeration unit can be reduced.Meanwhile in view of on
State the function of expansion valve, refrigeration unit can adaptively variable expansion valve aperture, and then can with more convenient adjust
The pressure of refrigerant.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the embodiment of the present invention can have various modifications and variations.Within the spirit and principles of the invention, made
Any modification, equivalent substitution and improvements etc., should be included in the scope of the protection.
Claims (12)
- A kind of 1. expansion valve, it is characterised in that including：Valve body (10), the valve body (10) is interior to have runner (11), and throttling installation portion (12), institute are provided with the runner (11) State and offer first segment discharge orifice (121) on throttling installation portion (12)；Can deformation valve block (20), be movably installed on throttling installation portion (12), it is described to be opened on deformation valve block (20) Provided with the second throttle orifice (21), it is described can deformation valve block (20) there is first throttle state and the second throttle, described Under one throttle, it is described can deformation valve block (20) cover the first throttle hole (121) on throttling installation portion (12), The first segment discharge orifice (121) is blocked to connect the runner (11) at its both ends；Under second throttle, it is described can shape Become valve block (20) to deform upon, and movable part avoids or avoided completely the first segment on the throttling installation portion (12) Discharge orifice (121) so that the first segment discharge orifice (121) connects the runner (11) at its both ends.
- 2. expansion valve according to claim 1, it is characterised in that described to be offered and described on deformation valve block (20) The intercommunicating pore (22) that one throttle orifice (121) is adapted, under the first throttle state, the intercommunicating pore (22) and described first Throttle orifice (121) misplaces, under second throttle, the intercommunicating pore (22) activity to the first segment discharge orifice (121) partially overlap or be completely superposed.
- 3. expansion valve according to claim 2, it is characterised in that offer slot on the throttling installation portion (12) (122), it is described can deformation valve block (20) be movably inserted on the slot (122), the first segment discharge orifice (121) is run through The slot (122).
- 4. expansion valve according to claim 2, it is characterised in that offered on the throttling installation portion (12) multiple described First segment discharge orifice (121), it is described can offer on deformation valve block (20) be adapted with multiple first segment discharge orifices (121) it is more The individual intercommunicating pore (22).
- 5. expansion valve according to claim 2, it is characterised in that the throttling installation portion (12) in a ring, described the Under one throttle, it is described can deformation valve block (20) be and the arc surfaced that is adapted of throttling installation portion (12), the cambered surface Shape can deformation valve block (20) center it is corresponding with the center of the annular throttling installation portion (12).
- 6. expansion valve according to claim 5, it is characterised in that under second throttle, it is described can deformation valve The opposite direction deformation that piece (20) protrudes towards the arc surfaced.
- 7. expansion valve according to claim 5, it is characterised in that the first segment discharge orifice (121) is circular arc, the company Through hole (22) is also circular arc.
- 8. expansion valve according to claim 1, it is characterised in that second throttle orifice (21) for be opened in it is described can shape The circular hole become on valve block (20).
- 9. expansion valve according to claim 1, it is characterised in that the runner (11) throttles on direction at it, cross section Product increase.
- 10. expansion valve according to claim 9, it is characterised in that the runner (11) includes first flow (111) and the Two runners (112), on the throttling direction of the runner (11), the second flow channel (112) is located at the first flow (111) Downstream, the cross-sectional area of the second flow channel (112) is more than the cross-sectional area of the first flow (111), the throttling peace Dress portion (12) is arranged in the second flow channel (112).
- 11. expansion valve according to claim 10, it is characterised in that the runner (11) also includes third flow channel (113), By the third flow channel (113) transition between the first flow (111) and the second flow channel (112), in the runner (11) on throttling direction, the third flow channel (113) is gradual-enlargement type shape.
- 12. a kind of refrigeration unit, including expansion valve, it is characterised in that the expansion valve is any one of claim 1 to 11 institute The expansion valve stated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711166065.3A CN107741110B (en) | 2017-11-21 | 2017-11-21 | Expansion valve and refrigerating unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711166065.3A CN107741110B (en) | 2017-11-21 | 2017-11-21 | Expansion valve and refrigerating unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107741110A true CN107741110A (en) | 2018-02-27 |
| CN107741110B CN107741110B (en) | 2023-11-14 |
Family
ID=61239004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711166065.3A Active CN107741110B (en) | 2017-11-21 | 2017-11-21 | Expansion valve and refrigerating unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107741110B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101524800A (en) * | 2008-03-05 | 2009-09-09 | 浙江三花汽车控制系统有限公司 | Method for welding expansion valve |
| JP2011133139A (en) * | 2009-12-22 | 2011-07-07 | Fuji Koki Corp | Expansion valve |
| CN202733082U (en) * | 2012-07-27 | 2013-02-13 | 陕西大唐智能仪器仪表有限公司 | Diaphragm-type elastic overflow self-closing structure |
| CN106247004A (en) * | 2016-08-26 | 2016-12-21 | 珠海格力电器股份有限公司 | Throttling arrangement and air-conditioner |
| CN207688478U (en) * | 2017-11-21 | 2018-08-03 | 珠海格力电器股份有限公司 | Expansion valve and refrigeration unit |
-
2017
- 2017-11-21 CN CN201711166065.3A patent/CN107741110B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101524800A (en) * | 2008-03-05 | 2009-09-09 | 浙江三花汽车控制系统有限公司 | Method for welding expansion valve |
| JP2011133139A (en) * | 2009-12-22 | 2011-07-07 | Fuji Koki Corp | Expansion valve |
| CN202733082U (en) * | 2012-07-27 | 2013-02-13 | 陕西大唐智能仪器仪表有限公司 | Diaphragm-type elastic overflow self-closing structure |
| CN106247004A (en) * | 2016-08-26 | 2016-12-21 | 珠海格力电器股份有限公司 | Throttling arrangement and air-conditioner |
| CN207688478U (en) * | 2017-11-21 | 2018-08-03 | 珠海格力电器股份有限公司 | Expansion valve and refrigeration unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107741110B (en) | 2023-11-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2000757B1 (en) | Refrigerating cycle apparatus | |
| US4548047A (en) | Expansion valve | |
| CN103245138B (en) | Expansion valve | |
| US9714780B2 (en) | On-demand micro expansion valve for a refrigeration system | |
| US20160131403A1 (en) | Electromagnetic valve | |
| JP2017003035A (en) | Valve device and fluid control device | |
| JP5544459B2 (en) | Pilot operated solenoid valve | |
| EP2375116B1 (en) | Flow reversing valve and heat pump device using the same | |
| JP4818154B2 (en) | Expansion valve mechanism and flow path switching device | |
| JP2009109063A (en) | Four-way selector valve and refrigeration cycle device using this | |
| KR102194459B1 (en) | Integrated electronic valve for expansion and switching direction | |
| RU2474771C2 (en) | Valve unit with inbuilt collector | |
| MX2011002404A (en) | An expansion valve with force equalization. | |
| CN107741110A (en) | Expansion valve and refrigeration unit | |
| CN207688478U (en) | Expansion valve and refrigeration unit | |
| JP2004257727A (en) | Expansion valve | |
| CN108253669B (en) | Multi-way reversing device and air conditioning system | |
| JP2001050616A (en) | Refrigeration cycle device and air conditioner | |
| MX2011005254A (en) | An expansion valve comprising a diaphragm and at least two outlet openings. | |
| JP2007240058A (en) | Refrigerant flow distributor control device of heat exchanger for refrigerating device | |
| JP3417351B2 (en) | Aperture device | |
| WO2014061385A1 (en) | Restriction device, and refrigeration cycle device | |
| WO2009146704A1 (en) | An expansion valve comprising a valve part with a piston portion | |
| JP5057393B2 (en) | Rotary valve | |
| KR102512686B1 (en) | Micro flow rate control valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |