CN103245141A - Thermal expansion valve and assembling method - Google Patents
Thermal expansion valve and assembling method Download PDFInfo
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- CN103245141A CN103245141A CN2013102039247A CN201310203924A CN103245141A CN 103245141 A CN103245141 A CN 103245141A CN 2013102039247 A CN2013102039247 A CN 2013102039247A CN 201310203924 A CN201310203924 A CN 201310203924A CN 103245141 A CN103245141 A CN 103245141A
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Abstract
The invention discloses a thermal expansion valve and an assembling method thereof. The thermal expansion valve comprises a valve body, a gas box head, a valve core component and an adjusting component, wherein the adjusting component comprises an adjusting rod, a spring seat, a valve core support base and an adjusting spring; the valve body comprises a mounting cavity and an adjusting cavity which are respectively arranged at the upside and the downside and are communicated with each other; the mounting cavity is used for mounting the adjusting component in the adjusting cavity through an upper opening of the valve body; the adjusting rod comprises a matching part and an adjusting part respectively located at the upper part and the lower part, and a positioning circular bead located between the matching part and the adjusting part; the matching part is matched with the spring seat; the adjusting part is used for a user to operate; the adjusting rod is located in the adjusting cavity through the positioning circular bead; a third sealing pair is formed between the adjusting part of the adjusting rod and the adjusting cavity; the spring seat is matched with the inner wall of the adjusting cavity through a screw thread, so that the spring seat can move up and down under the driving of the adjusting rod. As the adjusting component is arranged in the adjusting cavity from the upper opening of the valve body, the installation problem of the adjusting component is solved without setting an adjusting seat in the prior art; and furthermore, the leakage risk is reduced, and the whole performances of the products are improved.
Description
Technical field
The present invention relates to refrigerant fluid control component technical field, relate in particular to a kind of heating power expansion valve and installation method thereof.
Background technology
Heating power expansion valve is the vitals of forming refrigeration system, constitutes four basic elements of character of refrigeration system with evaporimeter, compressor and condenser.The main effect of heating power expansion valve is the aperture size of coming control valve by the degree of superheat of evaporator outlet end or compressor suction side in the induction refrigeration system, thereby the system of realization cold medium flux is regulated and the purpose of throttling step-down.
Fig. 1 shows a kind of structure of existing heating power expansion valve, this heating power expansion valve comprises valve body 29, be connected in valve body 29 upper ends air tank head and with the bonnet 21 of the lower end threaded engagement of valve body 29, this air tank head comprises gas tank seat 213, gas tank lid 214 and be located in diaphragm 215 between the two, diaphragm 215 is divided into respectively air tank head with gas tank and covers 214 gentle blocks 213 corresponding gas tank epicoele and cavity of resorption, being filled with in the gas tank epicoele for example is varying with temperature of refrigerant and produce the medium that certain pressure changes, the gas tank epicoele is connected with temperature-sensitive bag 217 by capillary 216, temperature-sensitive bag 217 is for the degree of superheat of the refrigerant of experiencing evaporator outlet end or suction port of compressor end, and in the gas tank epicoele, produce a temperature, pressure Pb, simultaneously, the gas tank cavity of resorption is communicated with the evaporator outlet end by the balance pipe (not shown), thereby produces an evaporating pressure Po in the gas tank cavity of resorption.In addition, as shown in Figure 1, the top of valve body 29 is formed with valve passage, and the bottom is formed with the adjusting chamber that communicates with valve passage, and the access road that is connected with inlet connection 219 is communicated with valve passage, and the exit passageway that is connected with discharge connection 218 is communicated with the adjusting chamber; This valve passage is combined with spool 27, the upper end of spool 27 is connected with drive link 220, and the other end of this drive link 220 is connected with the driver blade 212 that is positioned at the gas tank cavity of resorption, and this drive link 220 is slidingly matched with the pilot hole that valve body top arranges, at this, spool 27 and drive link 220 constitute core assembly; Regulate the adjusting part that is equipped with in the chamber for the position of the relative valve passage of regulating spool, this adjusting part comprises the adjusting rod 22 that the inner thread with regulating the chamber that is positioned at the lower end cooperates, the spool supporting seat 28 of spool 27 be used for to be installed and be located in spool supporting seat 28 and adjusting rod 22 between regulating spring 26, wherein, adjusting rod 22 is by forming sealing pair between sealing ring 23 and adjusting chamber, can form as shown in Figure 1 unidirectional conical surface seal or ball face sealing between spool 27 and the valve passage, this regulating spring 26 applies an elastic force Pt who makes progress for spool 27, and the big I of elastic force Pt is regulated by turn adjusting rod 22.With core assembly (being spool 27 and drive link 220) as the force analysis object, core assembly is subjected to an elastic force Pt who makes progress, can be subjected to the downward thrust that driver blade 212 applies simultaneously, this thrust promotes driver blade 212 by diaphragm 215 and forms, thereby this thrust that is be the power that makes that diaphragm 215 moves downward, be Pb-Po, when spool 27 is in poised state, Pb-Po=Pt, that is Pb=Po+Pt, when the temperature of evaporator outlet end was too high, Pb increased, move downward thereby promote spool 27, so just increase the flow of refrigerant; Cross when low when the temperature of evaporator outlet end, Pb reduces, and moves upward thereby promote spool 27, has so just reduced the flow of refrigerant.
The structure of heating power expansion valve shown in Figure 1 is particularly suitable for the heating power expansion valve of pet name justice refrigerating capacity, the adjustable range that is characterized in required regulating spring is less relatively, the external diameter of regulating spring is less, sealing ring on the adjusting rod can adopt the sealing ring of small dimension, adjusting rod can stretch into and regulate certain depth in the chamber during adjusting, above characteristics guarantee that adjusting rod deflection can not take place, and then can not cause the sealing ring between adjusting rod and adjusting chamber to leak.If but the heating power expansion valve of producing big nominal refrigerating capacity still adopts the structure of adjusting part shown in Figure 1, just need to increase the adjustable range of regulating spring, increase the height of valve body and the cross-sectional area in adjusting chamber, this not only can cause the increase of cost, also can increase adjusting rod and regulate the possibility that the sealing pair between the chamber leaks, this is mainly reflected in: the elastic force that needs to adopt larger-diameter sealing ring and regulating spring to produce causes the adjusting rod deflection than Da Yi.In order to address this problem, adopt structure shown in Figure 2 to produce the heating power expansion valve of big nominal refrigerating capacity at present usually.
What heating power expansion valve shown in Figure 2 was different with heating power expansion valve shown in Figure 1 is: the top of valve body 19 is formed with valve passage, the bottom is together with the common adjusting chamber that is communicated with valve passage that forms of the inner chamber of adjustment seat, the access road that is connected with inlet connection 119 is communicated with valve passage, and the exit passageway that is connected with discharge connection 118 is communicated with the adjusting chamber; This valve passage is combined with core assembly, this core assembly comprises drive link 120 and the spool of accepting mutually with drive link 120 17, drive link and valve passage are slidingly matched, and for example be to form sealing pair by upper sealing gasket 110 between top and valve passage, the neck of drive link contracting in the bottom of accepting with spool 17 forms, with and the inwall of valve passage between form the toroidal cavity of cooling matchmaker in access road enters valve passage, and spool stretches in the adjusting chamber, and form unidirectional conical surface seal or ball face sealing with the end of valve passage, the upper end of drive link 120 is connected with the driver blade 112 that is positioned at the gas tank cavity of resorption; Regulate the adjusting part that is equipped with in the chamber for the position of regulating spool 17 relative valve passages, this adjusting part comprises the adjusting rod 12 that is installed on rotatably in the adjustment seat 150, limit its spring base that is slidingly matched 15 with adjusting rod 12 with relatively rotating, be used for the spool supporting seat 18 of support spool and be located in spool supporting seat 18 and spring base 15 between regulating spring 16, this spring base 15 cooperates with the inner thread of adjustment seat, wherein, form sealing pair between the inwall of adjusting rod 12 by lower seal circle 13 and adjustment seat 150.The stressing conditions of core assembly and the Principles of Regulation of cold medium flux and heating power expansion valve shown in Figure 1 are basic identical, are not described further at this.
As shown in Figure 2, the adjusting part of this heating power expansion valve is by setting up the decrement that spring base 15 is regulated regulating spring 16, the elastic force that regulating spring 16 applies directly acts on the spring base 15, the rotation in adjustment seat 150 of 12 need of adjusting rod can be finished the adjusting of decrement in addition, above architectural feature can avoid adjusting rod 12 that deflections take place, and reduces sealing pair because of 150 of adjusting rod 12 and adjustment seats and loses efficacy the possibility of leakage takes place.In addition, because being provided with the adjusting portion of other part relative adjustment bar bottoms of locating shoulder and adjusting part, adjusting rod shown in Figure 2 has bigger diameter, therefore, need set up and from the adjustment seat 150 that valve body disassembles adjusting rod 12 to be installed, so that the bottom of adjusting rod 12 from valve body is installed in the valve body.The heating power expansion valve of this kind structure is owing to set up adjustment seat and spring base has also brought following ill effect: the hermetically-sealed construction between adjustment seat and the valve body (heating power expansion valve shown in Figure 2 adopts the knife-edge sealing) exists and leaks hidden danger; Adjustment seat and valve body split design, parts are many, increased administrative expenses and assembly process.
Summary of the invention
First purpose of the present invention is to overcome the deficiencies in the prior art, and a kind of heating power expansion valve of avoiding the disclosure risk between adjustment seat and the valve body and can optimizing assembly technology is provided.
For achieving the above object, the technical scheme of the present invention's sampling is: a kind of heating power expansion valve, comprise valve body, be connected in air tank head, core assembly and the adjusting part of valve body upper end, described adjusting part comprises adjusting rod, the spring base that matches with described adjusting rod, be used for the spool supporting seat of support spool and be located in regulating spring between described spool supporting seat and the described spring base; Described core assembly comprises drive link and the spool of accepting mutually;
Described valve body comprises the installation cavity of arranging up and down that communicates with each other and regulates the chamber, described installation cavity is used for described adjusting part being installed in the adjusting chamber through the upper shed of valve body, described adjusting rod comprises auxiliary section that superposed and described spring base matches, be positioned at the bottom for the adjusting portion of user's operation and be positioned at the auxiliary section and adjusting portion between locating shoulder, described adjusting rod is positioned to regulate in the chamber by the locating shoulder cooperation, form the 3rd sealing pair between the adjusting portion of described adjusting rod and described adjusting chamber; Described spring base cooperates with the inner thread of regulating the chamber, to move up and down under the drive of adjusting rod.
Wherein, described adjusting portion cooperates installation rotatably with described adjusting chamber.
Wherein, described spring base and auxiliary section are limited it and are slidingly matched with relatively rotating.
Wherein, described heating power expansion valve also comprises the fairlead that is fixedly installed in the described installation cavity, be provided with in the described fairlead for the valve passage that core assembly is installed with the access road of described valve body interior access road contraposition and that communicate with described valve passage mutually, form first sealing pair between described fairlead and the described installation cavity, last intersegmental formation second sealing pair that is positioned at described access road top of the top of described drive link and described valve passage.
Wherein, sealing road in the inwall of the epimere of described valve passage is provided with, described interior sealing is equipped with second sealing ring in the road, forms described second sealing pair by described second sealing ring.
Wherein, the outer wall of described fairlead is provided with the first external seal road that is positioned at the access road top and the second external seal road that is positioned at the access road below, be separately installed with upper and lower sealing ring in the described first and second external seal roads, form described first sealing pair by described upper and lower sealing ring.
Wherein, the outer wall of the adjusting portion of described adjusting rod is provided with the sealing road, and described sealing is equipped with the 3rd sealing ring in the road, forms described the 3rd sealing pair by described the 3rd sealing ring.
Wherein, described fairlead is formed with locating shoulder, and what arrange on the inwall of described fairlead by locating shoulder on it and installation cavity is positioned in the installation cavity cooperating of upper support step.
Second purpose of the present invention is to provide a kind of installation method at above-mentioned thermal expansion valve arrangement, and this installation method comprises following installation steps:
Step 1: the upper shed of adjusting part by valve body is installed in the adjusting chamber through installation cavity;
Step 2: fairlead and the core assembly that is installed in the fairlead are installed in the installation cavity;
Step 3: upper shed place that driver blade is installed on valve body;
Step 4: the upper end that air tank head is installed on valve body.
Wherein, in described step 1, will pack in the described adjusting chamber with adjusting rod, spring base, regulating spring, the spool supporting seat of sealing ring successively.
Beneficial effect of the present invention is: the present invention is by being installed on the upper shed of adjusting part from valve body in the adjusting chamber, this kind mounting means for example can be realized by the structure of shaping-orientation cover, therefore need not to arrange again the installation question that adjustment seat of the prior art solves adjusting part, and then reduced the risk of leaking, improved the overall performance of product; In addition, saved at valve body and offered the processing technology of screw thread for the assembling adjustment seat, made processing become convenient, reduced processing cost.
Description of drawings
Fig. 1 shows a kind of generalized section of existing heating power expansion valve;
Fig. 2 shows the generalized section of another kind of existing heating power expansion valve;
Fig. 3 shows the generalized section according to the enforcement structure of heating power expansion valve of the present invention;
Fig. 4 mainly shows the generalized section of valve body among Fig. 3;
Fig. 5 shows the front view of adjusting rod among Fig. 3;
Fig. 6 shows the generalized section of fairlead among Fig. 3.
The explanation of the Reference numeral of the part that function is identical:
Valve body-19,29,39; Driver blade-112,212,312;
Gas tank seat-113,213,313; Spool supporting seat-18,28,38;
Gas tank lid-114,214,314; Spring base-15,35;
Diaphragm-115,215,315; Regulating spring-16,26,36;
Capillary-116,216,316; Inlet connection-119,219,319;
Temperature-sensitive bag-117,217,317; Drive link-120,220,320;
Discharge connection-118,218,318; Spool---17,27,37;
Bonnet-11,21,31; Fairlead---330.
The specific embodiment
The present invention will be further described below in conjunction with accompanying drawing.
As shown in Figure 3, heating power expansion valve of the present invention comprises valve body 39, is connected in the air tank head of valve body 39 upper ends, core assembly and adjusting part, this adjusting part comprises adjusting rod 32 as shown in Figure 5, match with the auxiliary section 321 on adjusting rod 32 tops and can adjusting rod 32 axially on the relative adjustment bar slide but the spring base 35 that can't the relative adjustment bar rotates, be used for supporting the spool supporting seat 38 of spool 37 and be located in spool supporting seat 38 and spring base 35 between regulating spring 36; This core assembly comprises drive link 320 and spool 37.Adjusting rod 32 comprises three parts, its bottom is adjusting portion 322, its upper end is auxiliary section 321, and auxiliary section 321 and spring base 35 can be by for example being cooperating of orthohexagonal non-circular special-shaped axle, hole to realize that limiting the two relatively rotates, but being connected of can sliding relatively.Be positioning step 323 between adjusting portion 322 and the auxiliary section 321, the external diameter of positioning step 323 is greater than the external diameter of adjusting portion 322, so just formed positioning step, this adjusting rod 32 is positioned to regulate in the chamber 392 by the lower support step 396 as shown in Figure 4 that arranges on its positioning step 323 and the valve body 39 is matched.
Shown in Fig. 3 and 4, valve body 39 of the present invention comprises the installation cavity of arranging up and down that communicates with each other 391 and regulates chamber 391, this installation cavity 391 is used for above-mentioned adjusting part being installed in the adjusting chamber 392 through the upper shed 397 of valve body 39, this just requires the minimum diameter of installation cavity 391 more than or equal to the maximum gauge of adjusting part, because the present invention need not to arrange adjustment seat, therefore, bonnet 31 bottom thread direct and valve body 39 are connected.The bottom of valve body 39 (namely regulating the bottom in chamber 392) is provided with the path section, and this path section matches with adjusting portion 322, realizes sealing by the lower seal circle 33 in the sealing road 324 that is installed on adjusting rod 32 between the two.
Heating power expansion valve of the present invention also comprises the fairlead 330 that is fixedly installed in the installation cavity, as shown in Figure 6, be provided with in this fairlead 330 along the axially extended valve passage 3302 of fairlead with it is connected with inlet connection 319 with the access road 393(as shown in Figure 4 of valve body 39) contraposition mutually, and the interior access road 3301 that communicates with valve passage 3302, be that the structure of fairlead 330 enters in the valve passage 3302 by interior access road 3301 through the medium that access road 393 enters as long as satisfy, the medium that enters in the valve passage 3302 will flow out by regulating the exit passageway 394 of chamber 392 through communicating with the adjusting chamber, in the present embodiment, should in access road 3301 cover the area of inwall of installation cavitys greater than the shared area of access road 393, access road 3301 and access road 393 phase contrapositions in being easy to guarantee when mounted so on the one hand, reduced installation difficulty, medium is spread in interior access road 3301 fully and entered quickly and evenly in the valve passage 3302; Fig. 6 has provided a kind of enforcement structure of fairlead 330, wherein, interior access road 3301 comprises a circle outer ring channel 3301a who is positioned at outer shroud and at least two the ring passage 3301b that arrange at interval that communicate with outer ring channel 3301a that are positioned at ring, wherein, interior ring passage 3301b can be the combination of sector channel, cylindrical channel, for example, the interior ring passage of two a small semi-rings or big semi-ring passage and a cylindrical channel are set is set.At this, interior access road 3301 can satisfy flexible design on the basis of above-mentioned condition according to the needs of production and processing.391 of this fairlead 330 and installation cavitys form first sealing pair.The top of drive link 320 and valve passage 3302 are slidingly matched, and last intersegmental formation second sealing pair that is positioned at access road 3301 tops with valve passage 3302, guarantee that by first and second sealing pairs medium can not leak through fairlead 330, being connected with the driver blade 312 of the gas tank cavity of resorption that is positioned at air tank head through valve passage 3302 outwardly directed upper ends of drive link 320, leave between the bottom of accepting mutually with spool 37 of drive link 320 and the inwall of valve passage 3302 for medium and enter toroidal cavity in the valve passage, this spool 37 stretches into to be regulated in the chamber 392, and be supported on the spool supporting seat 38, spool 37 forms unidirectional (being that exit passageway is to access road) conical surface seal or ball face sealing with the end of valve passage 3302.
This adjusting rod 32 is installed on the bottom of regulating chamber 392 rotatably by the adjusting portion 322 of its underpart, adjusting portion 322 and 392 in adjusting chamber form the 3rd sealing pair, guaranteeing that medium can be via leaking between adjusting rod 32 and the valve body 39, this adjusting rod 32 is positioned to regulate in the chamber 392 with the inwall in adjusting chamber 392 arranges by the locating shoulder 323 between auxiliary section 321 and adjusting portion 322 cooperating of lower support step 396 as shown in Figure 4; This spring base 35 cooperates with the inner thread of regulating chamber 392, to move up and down under the drive of adjusting rod, changes the decrement of regulating spring 36.
Embodiment shown in Figure 3 mainly realizes above-mentioned sealing pair by sealing ring, for example, sealing road 3304 in can arranging at the inwall of the epimere of valve passage 3302, and second sealing ring 331 is installed interior sealing road 3304 in, by above-mentioned second sealing pair of second sealing ring, 331 formation.In addition, the first external seal road 3305 that can be above the setting of the outer wall of fairlead 330 be positioned at access road 3301 and the second external seal road 3306 that is positioned at below the access road 3301, and in the first and second external seal roads, install respectively and lower seal 332a, 332b, form above-mentioned first sealing pair by upper and lower sealing ring 332a, 332b.Moreover, sealing road 324 can be set at the outer wall of the adjusting portion 322 of adjusting rod 32, and lower seal circle 33 is installed sealing road 324 in, by above-mentioned the 3rd sealing pair of these lower seal circle 33 formation.Need to prove other hermetically-sealed constructions that also can sample the present invention those skilled in the art use always.
For the ease of the location is installed, as shown in Figure 6, fairlead 330 can arrange locating shoulder 3303 on, and what arrange on the inwall of fairlead 330 by locating shoulder on it 3303 and installation cavity 391 is positioned in the installation cavity 391 cooperating of upper support step 395.
On the basis of above-mentioned heating power expansion valve, the present invention also provides a kind of assembly method of heating power expansion valve:
Step 1: the upper shed 397 of adjusting part by valve body 39 is installed in the adjusting chamber 392 through installation cavity 391, and the installation relation between each part of adjusting part wherein is same as the prior art;
Particularly, will pack in the described adjusting chamber 392 with adjusting rod 32, spring base 35, regulating spring 36, the spool supporting seat 38 of sealing ring successively.In order to guarantee that adjusting part can pack into smoothly and regulate in the chamber 392 (be among Fig. 3 from top to bottom direction) from installation cavity, the internal diameter of installation cavity 391 is greater than the external diameter of regulating spring 36, spring base 35, spool supporting seat 38 and adjusting rod 32.
Step 2: fairlead 330 and the core assemblies that are installed in the fairlead 330 are installed in the installation cavity 391;
Step 3: upper shed 397 places that driver blade 312 are installed on valve body 39;
Step 4: the upper end that air tank head is installed on valve body 39.
This assembly method compared with prior art can greatly reduce installation step, thereby optimizes assembly technology, has improved the cost advantage of product.And owing to cancelled the adjustment seat structure that arranges separately in the prior art, avoided issuable risk of leakage between adjustment seat and the valve body, improved the performance of product on the whole.
Above driver blade and the installation of air tank head are same as the prior art, no longer describe in detail at this.
Only being preferred embodiment of the present invention in sum, is not to limit practical range of the present invention.Be that all equivalences of doing according to the content of the present patent application claim change and modification, all should belong to technology category of the present invention.
Claims (10)
1. heating power expansion valve, comprise valve body, be connected in air tank head, core assembly and the adjusting part of valve body upper end, described adjusting part comprises adjusting rod, the spring base that matches with described adjusting rod, be used for the spool supporting seat of support spool and be located in regulating spring between described spool supporting seat and the described spring base; Described core assembly comprises drive link and the spool of accepting mutually; It is characterized in that:
Described valve body comprises the installation cavity of arranging up and down that communicates with each other and regulates the chamber, described installation cavity is used for described adjusting part being installed in the adjusting chamber through the upper shed of valve body, described adjusting rod comprises auxiliary section that superposed and described spring base matches, be positioned at the bottom for the adjusting portion of user's operation and be positioned at the auxiliary section and adjusting portion between locating shoulder, described adjusting rod is positioned to regulate in the chamber by the locating shoulder cooperation, forms the 3rd sealing pair between the adjusting portion of described adjusting rod and described adjusting chamber; Described spring base cooperates with the inner thread of regulating the chamber, to move up and down under the drive of adjusting rod.
2. heating power expansion valve according to claim 1, it is characterized in that: described adjusting portion cooperates installation rotatably with described adjusting chamber.
3. heating power expansion valve according to claim 1, it is characterized in that: described spring base and auxiliary section are limited it and are slidingly matched with relatively rotating.
4. heating power expansion valve according to claim 1, it is characterized in that: described heating power expansion valve also comprises the fairlead that is fixedly installed in the described installation cavity, be provided with in the described fairlead for the valve passage that core assembly is installed with the access road of described valve body interior access road contraposition and that communicate with described valve passage mutually, form first sealing pair between described fairlead and the described installation cavity, last intersegmental formation second sealing pair that is positioned at described access road top of the top of described drive link and described valve passage.
5. heating power expansion valve according to claim 1 is characterized in that: sealing road in the inwall of the epimere of described valve passage is provided with, second sealing ring is installed in the sealing road in described, and form described second sealing pair by described second sealing ring.
6. heating power expansion valve according to claim 1, it is characterized in that: the outer wall of described fairlead is provided with the first external seal road that is positioned at the access road top and the second external seal road that is positioned at the access road below, be separately installed with upper and lower sealing ring in the described first and second external seal roads, form described first sealing pair by described upper and lower sealing ring.
7. heating power expansion valve according to claim 1, it is characterized in that: the outer wall of the adjusting portion of described adjusting rod is provided with the sealing road, and described sealing is equipped with the 3rd sealing ring in the road, forms described the 3rd sealing pair by described the 3rd sealing ring.
8. heating power expansion valve according to claim 1, it is characterized in that: described fairlead is formed with locating shoulder, and what arrange on the inwall of described fairlead by locating shoulder on it and installation cavity is positioned in the installation cavity cooperating of upper support step.
9. according to the assembly method of each described heating power expansion valve in the claim 1 to 8, it is characterized in that, comprise following installation steps:
Step 1: the upper shed of adjusting part by valve body is installed in the adjusting chamber through installation cavity;
Step 2: fairlead and the core assembly that is installed in the fairlead are installed in the installation cavity;
Step 3: upper shed place that driver blade is installed on valve body;
Step 4: the upper end that air tank head is installed on valve body.
10. the assembly method of heating power expansion valve according to claim 9 is characterized in that, in described step 1, will pack in the described adjusting chamber with adjusting rod, spring base, regulating spring, the spool supporting seat of sealing ring successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310203924.7A CN103245141B (en) | 2013-05-28 | 2013-05-28 | A kind of heating power expansion valve and assembly method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310203924.7A CN103245141B (en) | 2013-05-28 | 2013-05-28 | A kind of heating power expansion valve and assembly method thereof |
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| CN103245141A true CN103245141A (en) | 2013-08-14 |
| CN103245141B CN103245141B (en) | 2016-04-27 |
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| CN201310203924.7A Active CN103245141B (en) | 2013-05-28 | 2013-05-28 | A kind of heating power expansion valve and assembly method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104514898A (en) * | 2013-10-04 | 2015-04-15 | 浙江盾安机械有限公司 | Switching valve and air conditioning unit |
| CN105805989A (en) * | 2014-12-29 | 2016-07-27 | 浙江三花股份有限公司 | Thermal expansion valve |
| CN113048250A (en) * | 2016-05-11 | 2021-06-29 | 丹佛斯有限公司 | Insert for a thermostatic expansion valve, thermostatic expansion valve and method for assembling a thermostatic expansion valve |
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| EP1384962A2 (en) * | 2002-07-23 | 2004-01-28 | Fujikoki Corporation | Expansion valve |
| CN100422666C (en) * | 2002-10-29 | 2008-10-01 | 株式会社不二工机 | Expansion valve |
| JP2004162976A (en) * | 2002-11-12 | 2004-06-10 | Tgk Co Ltd | Expansion valve |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104514898A (en) * | 2013-10-04 | 2015-04-15 | 浙江盾安机械有限公司 | Switching valve and air conditioning unit |
| CN105805989A (en) * | 2014-12-29 | 2016-07-27 | 浙江三花股份有限公司 | Thermal expansion valve |
| CN113048250A (en) * | 2016-05-11 | 2021-06-29 | 丹佛斯有限公司 | Insert for a thermostatic expansion valve, thermostatic expansion valve and method for assembling a thermostatic expansion valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103245141B (en) | 2016-04-27 |
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