CN102954634B - Thermostatic expansion valve - Google Patents
Thermostatic expansion valve Download PDFInfo
- Publication number
- CN102954634B CN102954634B CN201110235765.XA CN201110235765A CN102954634B CN 102954634 B CN102954634 B CN 102954634B CN 201110235765 A CN201110235765 A CN 201110235765A CN 102954634 B CN102954634 B CN 102954634B
- Authority
- CN
- China
- Prior art keywords
- expansion valve
- valve plate
- heating power
- movable valve
- power expansion
- 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.)
- Active
Links
Abstract
The invention discloses a thermostatic expansion valve which is used for adjusting flow of refrigerants in a refrigerant pipeline (1) and comprises a fixed valve plate (2), a movable valve plate (3), an elastic telescopic pipe (10) and a temperature wrap (7). The fixed valve plate (2) is arranged on the refrigerant pipeline (1), and a first flow adjusting hole (211) is arranged on the fixed valve plate (2); the movable valve plate (3) is in slide fit with the fixed valve plate (2), a second flow adjusting hole (31) is arranged on the movable valve plate (3), and the contact ratio of the second flow adjusting hole (31) and the first flow adjusting hole (211) can be adjusted along with sliding of the movable valve plate (3); one end of the elastic telescopic pipe (10) is connected with the movable valve plate (3); and the temperature wrap (7) is communicated with the other end of the elastic telescopic pipe (10). Compared with a thermostatic expansion valve in the prior art, the thermostatic expansion valve has the advantages that a membrane is omitted, the problem that the membrane is easy to break when the temperature of an existing temperature wrap is over high is avoided owing to the movable valve plate, and the service life of the thermostatic expansion valve is prolonged. The invention further provides an air conditioning and refrigerating system.
Description
Technical field
The present invention relates to expansion valve technical field, more particularly, relate to a kind of heating power expansion valve.
Background technology
Expansion valve is a vitals in refrigeration system, is generally installed between liquid storage cylinder and evaporimeter.Expansion valve carrys out by-pass valve control flow by the degree of superheat change of evaporimeter end, prevents evaporator area underutilization and engine knock phenomenon.
Please refer to accompanying drawing 1, the figure shows a kind of inner equilibrium heating power expansion valve of the prior art, comprise filter screen 01, capillary, temperature-sensitive bag 08, inner equilibrium pipe 07, overheated spring 04, outlet 05, diaphragm, aperture 02, valve seat 03 and adjusting nut 06.This inner equilibrium heating power expansion valve is in the process of work, pressure after the throttling being passed on the downside of diaphragm by inner equilibrium pipe 07, the saturation pressure corresponding with compressor suction duct temperature on the upside of being passed to diaphragm with capillary and overheated spring 04 to be formed the power of diaphragm by needle and balance.When the air intake duct degree of superheat is excessive, temperature-sensitive bag temperature raises, and corresponding saturation pressure becomes large, and the promotion downward compressed thermoelastic spring of diaphragm and needle move down, and increases throttle orifice aperture, augmented flow, thus reduces the degree of superheat; Otherwise spring and needle move up, reduce the aperture of throttle orifice.
Above-mentioned inner equilibrium heating power expansion valve, in the process of work, if when the temperature of temperature-sensitive bag is too high, diaphragm easily breaks, it reduces the service life of whole inner equilibrium heating power expansion valve.And the complex structure of whole expansion valve, by being weldingly connected between most of parts, weld seam is more, and the probability of weld leakage is larger.
In sum, how providing a kind of heating power expansion valve, to simplify the structure of whole expansion valve, improve the service life of whole heating power expansion valve, is current those skilled in the art's problem demanding prompt solution.
Summary of the invention
In view of this, the invention provides a kind of heating power expansion valve, to provide a kind of structure simple heating power expansion valve, improve the service life of whole heating power expansion valve simultaneously.
A kind of heating power expansion valve, for the adjustment of refrigerant flow in refrigerant tubing, comprising:
Be arranged on the fixing valve block on described refrigerant tubing, which is provided with first flow adjustment hole;
The movable valve plate be slidably matched with described fixing valve block, being provided with can along with the second flow regulating orifices of the registration of the slidable adjustment of described movable valve plate and described first flow adjustment hole;
The elastic telescopic pipe that one end is connected with described movable valve plate;
The temperature-sensitive bag be connected with the other end of described elastic telescopic pipe.
Preferably, in above-mentioned heating power expansion valve, described elastic telescopic pipe is zigzag pipe, coiled pipe or helix tube.
Preferably, in above-mentioned heating power expansion valve, described elastic telescopic pipe is flat tube.
Preferably, in above-mentioned heating power expansion valve, described first flow adjustment hole is bar hole, and described second flow regulating orifices is trapezoidal hole.
Preferably, in above-mentioned heating power expansion valve, described first flow adjustment hole is waist-shaped hole, and described second flow regulating orifices is isosceles trapezoid hole;
The center line of the cross section of described second flow regulating orifices extends along the moving direction of described movable valve plate, and the center line bearing of trend of the length direction of the cross section of described first flow adjustment hole and the cross section of described second flow regulating orifices is perpendicular.
Preferably, in above-mentioned heating power expansion valve, described fixing valve block comprises:
The top board be parallel to each other, base plate;
Connect the side plate of described top board and base plate; Wherein: the sliding cavity that described top board, base plate and side plate composition is slidably matched with described movable valve plate, the quantity of described first flow adjustment hole is two, and is separately positioned on the described top board position relative with on base plate.
Preferably, in above-mentioned heating power expansion valve, described fixing valve block is plate-like piece, is provided with the chute be slidably matched with described movable valve plate.
Preferably, in above-mentioned heating power expansion valve, also comprise and being arranged on described refrigerant tubing, and be positioned at the support that described movable valve plate skids off side, it is tubular elements, and seals away from one end of described refrigerant tubing; Described movable valve plate and elastic telescopic pipe are all positioned at the cylinder chamber of described support; Described temperature-sensitive bag is by being connected with described elastic telescopic pipe through the capillary of described support barrel.
Preferably, in above-mentioned heating power expansion valve, also comprise the adjustment screw at the bottom of the regulating spring be arranged in the cylinder chamber of described support and the cylinder being arranged on described support; Wherein:
The two ends of described regulating spring are respectively arranged with the first end cap be connected with described movable valve plate and the second end cap be connected with described adjustment screw.
Based on the above-mentioned heating power expansion valve provided, present invention also offers a kind of air-conditioning refrigeration system, this air-conditioning refrigeration system has the heating power expansion valve described in above-mentioned any one.
The course of work of heating power expansion valve provided by the invention is as follows:
Fixing valve block is arranged on refrigerant tubing, movable valve plate and fixing valve block are slidably matched, the second flow regulating orifices in movable valve plate can along with the slip of movable valve plate and then the registration changing itself and first flow adjustment hole, the flow of cold-producing medium in the whole refrigerant tubing of final change, the power realization that the concrete slide of the above-mentioned movable valve plate saturation pressure that to be temperature-sensitive bag produced by the gas of induced compression machine suction temperature and then its inside produces elastic telescopic pipe.Concrete adjustment process is: when refrigeration system steady operation, and the active force (impel power that it stretch) of saturation pressure to it in the elastic force of elastic telescopic pipe itself and elastic telescopic pipe balances each other; When the degree of superheat is bigger than normal, the saturation pressure that compressor air suction temperature raises its correspondence just increases, by the saturation of the air pressure in temperature-sensitive bag, the active force of elastic telescopic pipe is just increased, elastic telescopic pipe stretches and then movable valve plate is moved and the registration of first flow adjustment hole and the second flow regulating orifices is increased, finally increase the refrigerant flow on whole refrigerant tubing, the suction temperature of compressor is reduced; When the degree of superheat is less than normal, the saturation pressure that compressor air suction temperature reduces its correspondence just reduces, saturation of the air pressure in temperature-sensitive bag just reduces the active force of elastic telescopic pipe, elastic telescopic pipe is retracted into and movable valve plate is moved and the registration of first flow adjustment hole and the second flow regulating orifices is reduced under the effect of its restoring force, finally reduce the refrigerant flow on whole refrigerant tubing, the suction temperature of compressor is improved.
Can be found out by the course of work of above-mentioned heating power expansion valve, whole adjustment process realizes regulating by the slip of movable valve plate, relative to the heating power expansion valve provided in prior art, heating power expansion valve provided by the invention avoids the use of diaphragm, adopt movable valve plate avoid the temperature of temperature-sensitive bag too high time diaphragm crackly situation, extend the service life of heating power expansion valve.And the structure of whole heating power expansion valve only has the parts such as fixing valve block, movable valve plate, elastic telescopic pipe, temperature-sensitive bag to realize, structure is simple.Because the structure of whole heating power expansion valve is simple, the weld seam between parts is few, so reduce the probability revealed by weld seam.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of the inner equilibrium heating power expansion valve that Fig. 1 provides for prior art;
The structural representation of the heating power expansion valve that Fig. 2 provides for the embodiment of the present invention;
Fig. 3 is the structural representation fixing valve block in Fig. 2;
Fig. 4 is the plan structure schematic diagram of Fig. 3;
Fig. 5 is the structural representation of movable valve plate in Fig. 2;
Fig. 6 is the plan structure schematic diagram of Fig. 5.
In upper Fig. 1-6:
Filter screen 01, aperture 02, valve seat 03, overheated spring 04, outlet 05, adjusting nut 06, inner equilibrium pipe 07, temperature-sensitive bag 08, refrigerant tubing 1, fixing valve block 2, movable valve plate 3, support 4, regulating spring 5, capillary 6, temperature-sensitive bag 7, first end cap 8, second end cap 9, elastic telescopic pipe 10, adjustment screw 11, top board 21, base plate 22, side plate 23, side plate 24, sliding cavity 25, first flow adjustment hole 211, second flow regulating orifices 31.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belongs to the scope of protection of the invention.
Embodiments provide a kind of heating power expansion valve, simplify the structure of whole heating power expansion valve, improve the service life of whole heating power expansion valve simultaneously.
Please refer to accompanying drawing 2-6, the structural representation of the heating power expansion valve that Fig. 2 provides for the embodiment of the present invention; Fig. 3 is the structural representation fixing valve block in Fig. 2; Fig. 4 is the plan structure schematic diagram of Fig. 3; Fig. 5 is the structural representation of movable valve plate in Fig. 2; Fig. 6 is the plan structure schematic diagram of Fig. 5.
The heating power expansion valve that the present embodiment provides, for the adjustment of refrigerant flow in refrigerant tubing 1, comprising:
Be arranged on the fixing valve block 2 on refrigerant tubing 1, this fixing valve block 2 is provided with first flow adjustment hole 211;
The movable valve plate 3 be slidably matched with described fixing valve block 2, being provided with can along with the second flow regulating orifices 31 of the registration of the slidable adjustment of described movable valve plate 3 and described first flow adjustment hole 211;
The elastic telescopic pipe 10 that one end is connected with described movable valve plate 3;
The temperature-sensitive bag 7 be connected with the other end of described elastic telescopic pipe 10.
The course of work of heating power expansion valve provided by the invention is as follows:
Fixing valve block 2 is arranged on refrigerant tubing 1, movable valve plate 3 and fixing valve block 2 are slidably matched, the second flow regulating orifices 31 in movable valve plate 3 can along with the slip of movable valve plate 3 and then the registration changing itself and first flow adjustment hole 211, the flow of cold-producing medium in the whole refrigerant tubing 1 of final change, the concrete slide of above-mentioned movable valve plate 3 is that the saturation pressure that temperature-sensitive bag 7 is produced by induced compression machine suction temperature and then gas wherein realizes the power that elastic telescopic pipe 10 produces.Concrete adjustment process is: the saturation pressure when refrigeration system steady operation in the elastic force of elastic telescopic pipe 10 itself and elastic telescopic pipe 10 balances each other to its active force (impelling the power that it stretches); When the degree of superheat is bigger than normal, compressor air suction temperature raises gas saturation pressure corresponding in elastic telescopic pipe 10 and just increases, by the saturation of the air pressure in temperature-sensitive bag 7, the active force of elastic telescopic pipe 10 is just increased, elastic telescopic pipe 10 stretches and then movable valve plate 3 is moved and the registration of first flow adjustment hole 211 and the second flow regulating orifices 31 is increased, finally increase the refrigerant flow on whole refrigerant tubing 1, the suction temperature of compressor is reduced; When the degree of superheat is less than normal, the saturation pressure that compressor air suction temperature reduces its correspondence just reduces, by the saturation of the air pressure in temperature-sensitive bag, the active force of elastic telescopic pipe 10 is just reduced, elastic telescopic pipe 10 is retracted into and movable valve plate 3 is moved and the registration of first flow adjustment hole 211 and the second flow regulating orifices 31 is reduced under the effect of its restoring force, finally reduce the refrigerant flow on whole refrigerant tubing 1, the suction temperature of compressor is improved.
Can be found out by the course of work of above-mentioned heating power expansion valve, whole adjustment process realizes regulating by the slip of movable valve plate 3, relative to the heating power expansion valve provided in prior art, heating power expansion valve provided by the invention avoids the use of diaphragm, adopt movable valve plate 3 avoid the temperature of temperature-sensitive bag 7 too high time diaphragm crackly situation, extend the service life of heating power expansion valve.And the structure of whole heating power expansion valve only has the parts such as fixing valve block, movable valve plate, elastic telescopic pipe, temperature-sensitive bag to realize, structure is simple.Because the structure of whole heating power expansion valve is simple, the weld seam between parts is few, so reduce the probability revealed by weld seam.
In the heating power expansion valve provided in the present embodiment, elastic telescopic pipe 10 has certain elasticity, and when the gas pressure in its pipe increases, its entirety can stretch; When the gas pressure in its pipe reduces, this elastic telescopic pipe 10 bounces back.Above-mentioned elastic telescopic pipe 10 preferably adopts pipe, coiled pipe or helix tube in a zigzag.More preferred, above-mentioned elastic telescopic pipe 10 is flat tube.
In the heating power expansion valve provided in above-described embodiment, temperature-sensitive bag 7 preferably adopts capillary 6 to be connected with elastic telescopic pipe 10, thus realizes more accurate gas between temperature-sensitive bag 7 and elastic telescopic pipe 10 and circulate, and then realization adjustment is more accurate.
Preferably, above-mentioned first flow adjustment hole 211 and the second flow regulating orifices 31 can be the hole of various shape, as long as can along with the movement of movable valve plate 3 and then the registration changing first flow adjustment hole 211 and the second flow regulating orifices 31.Preferably, above-mentioned first flow adjustment hole 211 is bar hole, and the second flow regulating orifices 31 is trapezoidal hole, and the structure of first flow adjustment hole 211 and the second flow regulating orifices 31 achieves the adjustment more meticulous to refrigerant flow in refrigerant tubing 1.More preferred, above-mentioned first flow adjustment hole 211 is waist-shaped hole, second flow regulating orifices 31 is isosceles trapezoid hole, the center line of the cross section of described second flow regulating orifices 31 extends along the moving direction of described movable valve plate 3, and the bearing of trend of the center line of the length direction of the cross section of described first flow adjustment hole 211 and the cross section of described second flow regulating orifices 31 is perpendicular.The above-mentioned a kind of specific constructive form just describing first flow adjustment hole 211 and the second flow regulating orifices 31, the structure realizing the hole of above-mentioned functions has a lot, is not repeating at this.
Above-mentioned movable valve plate 3 is slidably arranged on fixing valve block 2, by the adjustment realizing registration between first flow adjustment hole 211 and the second flow regulating orifices 31 of sliding, and then realizes the adjustment to refrigerant flow in refrigerant tubing 1.The fixing valve block 2 provided in the present embodiment comprises: the top board 21 be parallel to each other and base plate 22, connect the side plate (side plate 23 and side plate 24) of top board 21 and base plate 22, wherein top board 21, base plate 22 and side plate form the sliding cavity 25 be slidably matched with movable valve plate 3; The quantity of first flow adjustment hole 211 is two, and is separately positioned on top board 21 position relative with on base plate 22.Certain above-mentioned fixing valve block 2 can be also plate-like piece, is provided with the chute be slidably matched with described movable valve plate 3.
In the heating power expansion valve provided in above-described embodiment, also comprise and be arranged on refrigerant tubing 1, and be positioned at the support 4 that movable valve plate 3 skids off side, it is tubular elements, and seal away from one end of refrigerant tubing 1, movable valve plate 3 and elastic telescopic pipe 10 are all positioned at the cylinder chamber of support 4, and capillary 6 is connected with elastic telescopic pipe 10 through the barrel of support 4.Above-mentioned support 4 is just for parts such as elastic telescopic pipe 10 grade provide a more stable support.Above-mentioned support 4 also can realize for plate.
In order to optimize technique scheme further, in above-mentioned heating power expansion valve, also comprise the adjustment screw 11 at the bottom of the regulating spring 5 be arranged in the cylinder chamber of support 4 and the cylinder being arranged on support 4, wherein: the two ends of described regulating spring 5 are respectively arranged with the first end cap 8 be connected with described movable valve plate 3 and the second end cap 9 be connected with adjustment screw 11.Above-mentioned regulating spring 5 be arranged so that in the process of heating power expansion valve work, gas pressure in the elastic force of regulating spring 5 and elastic telescopic pipe 10 and elastic telescopic pipe 10 balances in stable process, served as hot temperature when spending high or too low, the elastic force of regulating spring 5 and elastic telescopic pipe 10 and the gas pressure in elastic telescopic pipe 10 act on stretching of the common adjustable elastic telescoping tube 10 of active force of elastic telescopic pipe 10.Therefore, changed the elasticity of regulating spring 5 by adjustment screw 11, realize movable valve plate 3 in the temperature changing process of setting, realize the relative slippage with fixing valve block 2.Such as, when between movable valve plate 3 and fixing valve block 2, slippage is to desired location, larger variations in temperature and then realization may be needed by the flexible realization of elastic telescopic pipe 10 if single, when increasing regulating spring 5, synergy due to regulating spring 5 is that the flow aperture that many elastic telescopic pipes 10 can be able to realize communicating under less variations in temperature effect regulates, therefore, elasticity above by adjustment screw 11 pairs of regulating springs 5 regulates, and then realizes the adjustment of same traffic of the whole heating power expansion valve of different variations in temperature.
Based on the heating power expansion valve provided in above-described embodiment, the embodiment of the present invention additionally provides a kind of air-conditioning refrigeration system of the heating power expansion valve had in above-described embodiment.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (8)
1. a heating power expansion valve, for the adjustment of refrigerant flow in refrigerant tubing (1), is characterized in that, comprising:
Be arranged on the fixing valve block (2) on described refrigerant tubing (1), which is provided with first flow adjustment hole (211);
The movable valve plate (3) be slidably matched with described fixing valve block (2), being provided with can along with second flow regulating orifices (31) of the registration of the slidable adjustment of described movable valve plate (3) and described first flow adjustment hole (211), described first flow adjustment hole (211) is bar hole or waist-shaped hole, and described second flow regulating orifices (31) is trapezoidal hole;
The elastic telescopic pipe (10) that one end is connected with described movable valve plate (3);
The temperature-sensitive bag (7) be connected with the other end of described elastic telescopic pipe (10); And
Be arranged on described refrigerant tubing (1), and be positioned at the support (4) that described movable valve plate (3) skids off side, it is tubular elements, and seals away from one end of described refrigerant tubing (1); Described movable valve plate (3) and elastic telescopic pipe (10) are all positioned at the cylinder chamber of described support (4); Described temperature-sensitive bag (7) is connected with described elastic telescopic pipe (10) by the capillary (6) through described support (4) barrel.
2. heating power expansion valve according to claim 1, is characterized in that, described elastic telescopic pipe (10) is zigzag pipe, coiled pipe or helix tube.
3. heating power expansion valve according to claim 2, is characterized in that, described elastic telescopic pipe (10) is flat tube.
4. heating power expansion valve according to claim 1, is characterized in that, described first flow adjustment hole (211) is waist-shaped hole, and described second flow regulating orifices (31) is isosceles trapezoid hole;
The center line of the cross section of described second flow regulating orifices (31) extends along the moving direction of described movable valve plate (3), and the center line bearing of trend of the length direction of the cross section of described first flow adjustment hole (211) and the cross section of described second flow regulating orifices (31) is perpendicular.
5. heating power expansion valve according to claim 4, is characterized in that, described fixing valve block (2) comprising:
The top board (21) be parallel to each other, base plate (22);
Connect the side plate (23,24) of described top board (21) and base plate (22); Wherein: the sliding cavity (25) that described top board (21), base plate (22) and side plate (24) composition is slidably matched with described movable valve plate (3), the quantity of described first flow adjustment hole (211) is two, and is separately positioned on described top board (21) relative position upper with base plate (22).
6. heating power expansion valve according to claim 4, is characterized in that, described fixing valve block (2) is plate-like piece, is provided with the chute be slidably matched with described movable valve plate (3).
7. heating power expansion valve according to claim 1, it is characterized in that, the adjustment screw (11) at the bottom of the cylinder also comprising the regulating spring (5) in the cylinder chamber being arranged on described support (4) and be arranged on described support (4); Wherein:
The two ends of described regulating spring (5) are respectively arranged with the first end cap (8) be connected with described movable valve plate (3) and the second end cap (9) be connected with described adjustment screw (11).
8. an air-conditioning refrigeration system, is characterized in that, this air-conditioning refrigeration system has the heating power expansion valve in the claims 1-7 described in any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110235765.XA CN102954634B (en) | 2011-08-18 | 2011-08-18 | Thermostatic expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110235765.XA CN102954634B (en) | 2011-08-18 | 2011-08-18 | Thermostatic expansion valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102954634A CN102954634A (en) | 2013-03-06 |
| CN102954634B true CN102954634B (en) | 2015-05-06 |
Family
ID=47763775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110235765.XA Active CN102954634B (en) | 2011-08-18 | 2011-08-18 | Thermostatic expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102954634B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115200125B (en) * | 2022-09-15 | 2022-11-18 | 常兴集团有限公司 | High-efficient low temperature refrigeration air conditioning unit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060520A (en) * | 1990-10-06 | 1992-04-22 | 邓永林 | Pressure-differential expansion valve |
| US6351965B1 (en) * | 1999-04-19 | 2002-03-05 | Fuji International Corporation | Cooling and heating cycle apparatus and refrigerant cycle apparatus |
| CN1673589A (en) * | 2005-03-31 | 2005-09-28 | 烟台蓝德空调工业科技有限公司 | Double-flow direction electronic expansion valve |
| CN201206657Y (en) * | 2008-05-28 | 2009-03-11 | 曾晨光 | Automatic control valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4706372B2 (en) * | 2005-07-28 | 2011-06-22 | 株式会社デンソー | Thermal expansion valve |
-
2011
- 2011-08-18 CN CN201110235765.XA patent/CN102954634B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060520A (en) * | 1990-10-06 | 1992-04-22 | 邓永林 | Pressure-differential expansion valve |
| US6351965B1 (en) * | 1999-04-19 | 2002-03-05 | Fuji International Corporation | Cooling and heating cycle apparatus and refrigerant cycle apparatus |
| CN1673589A (en) * | 2005-03-31 | 2005-09-28 | 烟台蓝德空调工业科技有限公司 | Double-flow direction electronic expansion valve |
| CN201206657Y (en) * | 2008-05-28 | 2009-03-11 | 曾晨光 | Automatic control valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102954634A (en) | 2013-03-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2018094841A1 (en) | Air conditioner and refrigeration control method therefor | |
| CN103206798A (en) | Self-adaptation variable volume refrigeration system | |
| CN103206817B (en) | Adjustable throttling device and air-conditioning system utilizing same | |
| CN102954634B (en) | Thermostatic expansion valve | |
| KR20120114576A (en) | An air conditioner | |
| CN204084975U (en) | Varying capacity fluid reservoir and air-conditioning system | |
| CN111692770B (en) | Ejector and refrigeration system | |
| CN106641361B (en) | Self-adaptive throttle valve and air conditioning system | |
| CN103429973B (en) | For having the expansion valve of the steam compression system of reversible fluid stream | |
| US20150159935A1 (en) | Apparatus with dehumidification and defrosting abilities and controlling method thereof | |
| CN104482685A (en) | Cooling/warming air conditioner | |
| CN101900463B (en) | Air-conditioner and air-conditioner control method | |
| CN105318071B (en) | The manufacturing method and connection method of heating power expansion valve | |
| CN203215876U (en) | Air conditioner and outdoor unit thereof | |
| CN205779563U (en) | A kind of automobile air conditioner compressor | |
| CN204438622U (en) | A kind of machine automatization expansion valve | |
| CN204313515U (en) | Heating and air conditioner | |
| CN106224592A (en) | Zigzag two position and four-way reversing valve | |
| CN212645019U (en) | Control device, refrigeration system and refrigeration appliance | |
| CN105042925A (en) | Air conditioning system and air conditioner with same | |
| CN201081467Y (en) | Throttle device for heat pump unit | |
| CN104948793B (en) | A kind of throttling set | |
| CN203231596U (en) | Adjustable throttling device and air conditioning system applying same | |
| CN213040659U (en) | Air conditioner | |
| CN219264635U (en) | Liquid storage device and refrigeration cycle system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |