CN104197090A - Rotary type fluid passage changeover valve - Google Patents
Rotary type fluid passage changeover valve Download PDFInfo
- Publication number
- CN104197090A CN104197090A CN201410458886.4A CN201410458886A CN104197090A CN 104197090 A CN104197090 A CN 104197090A CN 201410458886 A CN201410458886 A CN 201410458886A CN 104197090 A CN104197090 A CN 104197090A
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- CN
- China
- Prior art keywords
- pockets
- spool
- sealing
- valve
- groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
Abstract
The invention provides a rotary type fluid passage changeover valve. The rotary type fluid passage changeover valve comprises a valve body, a valve element, a driving device and an elastic part, wherein the valve body is provided with a valve cavity which is in a frustum shape; the valve element is matched with the valve cavity in shape, the valve element is arranged in the valve cavity in a rotatable mode, a high-pressure channel and a low-pressure channel which are independent of each other are formed between the valve element and the side walls of the valve body, the valve element is provided with a first end and a second end in the axial direction of the valve element, and the area of the first end of the valve element is smaller than that of the second end of the valve element; the driving device is located at the first end of the valve element and is in drive connection with the valve element so as to drive the valve element to rotate; the elastic part is located at the second end of the valve element and abuts against the valve body and the valve element, containing grooves are formed in the valve body or the valve element, sealing parts are arranged in the containing grooves, protrude out of the containing grooves and abut against the valve element or the valve body, and the high-pressure channel is separated from the low-pressure channel through the sealing parts. The problems that cost is high and bonding is prone to happening to metal in the prior art are effectively solved according to the technical scheme.
Description
Technical field
The present invention relates to switching valve technical field, in particular to a kind of rotary flow path switching valve.
Background technique
In the technology of the rotary flow path switching valve of existing frustum valve cored structure, between valve body and spool, be to adopt hard sealing, seal by the cone match of processing.There is following shortcoming in above-mentioned sealing means:
The first, between spool and valve body, adopt the mode of metal hard-sealing to seal, this just requires the machining accuracy of part relatively high.And the size of switching valve product own is larger, guaranteeing precision ability is poor, if improve machining accuracy, will certainly increase widely difficulty of processing, has also just increased accordingly the cost of product;
The second, while normally work due to switching valve, spool and valve body seal, and spool of the prior art and valve body are direct butts, and due to frustum structural feature, under the effect of long-term pressure, the possibility that bonding occurs intermetallic is very large like this.If spool and valve body bonding, making like this two depart from required momentary action power just increases greatly, causes cannot making switching valve reliably commutate because resistance is excessive, and namely switching valve is stuck is failure to actuate, thereby makes product lose major function;
The 3rd, owing to adopting hard sealing between spool and valve body, therefore impurity (particle) has obvious impact to the sealability of product, once impurity (particle) sticks to sealing surface, will cause cannot fitting completely between spool and valve body, increase leakage rate thereby produce gap.
Summary of the invention
The present invention aims to provide a kind of rotary flow path switching valve, and the problem of bonding easily occurs to solve the high and intermetallic of cost in prior art.
To achieve these goals, the invention provides a kind of rotary flow path switching valve, comprising: valve body, there is valve pocket, valve pocket is cone table shape; Spool, suitable with valve pocket shape, spool is arranged in valve pocket rotationally, between spool and the sidewall of valve body, forms separate high-pressure channel and low-pressure channel, spool has along the first end of its axial direction and the second end, and the area of the first end of spool is less than the area of the second end of spool; Drive unit, is positioned at the first end of spool and drives and be connected to drive valve core rotation with spool; Elastic component, is positioned at the second end of spool, and distinguishes butt with valve body and spool, valve body or spool are provided with pockets, in pockets, be provided with Sealing, Sealing protrude from pockets and with spool or valve body butt, Sealing is separated high-pressure channel and low-pressure channel.
Further, pockets comprises the first groove section, and the first groove section stretches out to the direction of the notch of pockets gradually at the bottom land along pockets with shrinking.
Further, pockets also comprises the second groove section that is positioned at the first groove intersegmental part and is communicated with the first groove section, and the second groove section stretches out to the direction of the notch of pockets gradually at the bottom land along pockets with expanding.
Further, Sealing fills up pockets by injection moulding mode or pouring type.
Further, Sealing is nonmetallic material and fills up pockets by injection moulding mode, and Sealing protrudes from pockets 0.3mm to 0.5mm at the bottom land along pockets to Sealing in the direction of the notch of pockets.
Further, Sealing is metallic material and fills up pockets by pouring type, the material hardness of Sealing is lower than the material hardness of spool, and Sealing protrudes from pockets 0.2mm to 0.4mm at the bottom land along pockets to the direction of the notch of pockets.
Further, spool comprises the first disk body, the second disk body and the separating part between the first disk body and the second disk body, and the first disk body forms the first end of spool, and the second disk body forms the second end of spool; Pockets is arranged on spool, pockets comprises the first annular groove of being arranged on the first disk body, is arranged on the second annular groove on the second disk body and is arranged on two the first axial grooves of separating part both sides, and the first axial groove is all communicated with the first annular groove and the second annular groove.
Further, valve body has multiple adapters hole; Pockets is arranged on valve body, pockets comprise the top that is arranged on multiple adapters hole the 3rd annular groove, be arranged on multiple adapters hole below Fourth Ring groove and be arranged on the second axial groove of the left and right sides, each adapter hole, the second axial groove is all communicated with the 3rd annular groove and Fourth Ring groove.
Further, the second axial groove is four, and each the second axial groove is arranged between two adjacent adapter holes.
Further, the material of Sealing is ETFE or PFA.
Further, the material of Sealing is aluminum or aluminum alloy.
Apply technological scheme of the present invention, owing to being provided with pockets and Sealing, make to carry out soft seal by Sealing between valve body and spool.Like this, between valve body and spool, both can effectively seal, and lower to the metal conical surface required precision of spool and valve body.Meanwhile, spool is not directly contacted with valve body, the risk that can effectively avoid both to be bonded together due to molecule activity.Moreover owing to adopting soft seal, sealing material self has certain plasticity, thus when adhering to, impurity (particle) can compensate by the distortion of self, thus do not affect seal clearance, avoid the increase of leaking.And then the present invention has solved the problem that in prior art, cost is high, intermetallic bonding easily occurs and easily increases because of impurity (particle) impact leakage rate effectively.
Brief description of the drawings
The Figure of description that forms the application's a part is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows according to the embodiment's one of rotary flow path switching valve of the present invention vertical profile schematic diagram;
Fig. 2 shows the structural representation of the spool of the rotary flow path switching valve of Fig. 1;
Fig. 3 shows the A place enlarged diagram of the spool of Fig. 2;
Fig. 4 shows the size schematic diagram of the pockets of the spool of Fig. 2;
Fig. 5 shows the schematic top plan view of the spool of Fig. 2;
Fig. 6 shows according to the vertical profile schematic diagram of the embodiment's two of rotary flow path switching valve of the present invention valve body; And
Fig. 7 shows the B place enlarged diagram of the valve body of Fig. 6.
Wherein, above-mentioned accompanying drawing comprises the following drawings mark:
10, valve body; 11, take over hole; 101, the 3rd annular groove; 102, Fourth Ring groove; 103, the second axial groove; 20, spool; 21, the first disk body; 211, the first annular groove; 22, the second disk body; 221, the second annular groove; 23, separating part; 231, the first axial groove; 30, elastic component; 40, Sealing.
Embodiment
It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the application can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
As shown in Figures 1 to 4, embodiment one rotary flow path switching valve comprises: valve body 10, spool 20, drive unit and elastic component 30.In said structure, valve body 10 has valve pocket, valve pocket is cone table shape, spool 20 is suitable with valve pocket shape, spool 20 is arranged in valve pocket rotationally, between the sidewall of spool 20 and valve body 10, form separate high-pressure channel and low-pressure channel, spool 20 has along the first end of its axial direction and the second end, and the area of the first end of spool 20 is less than the area of the second end of spool.Drive unit is positioned at the first end of spool 20 and drives and be connected to drive spool 20 to rotate with spool 20, and elastic component 30 is positioned at the second end of spool 20, and distinguishes butts with valve body 10 and spool 20.In embodiment one, spool 20 is provided with pockets, is provided with Sealing 40 in pockets, Sealing 40 protrude from pockets and with valve body 10 butts, Sealing 40 is separated high-pressure channel and low-pressure channel.In embodiment one, valve pocket is up-small and down-big taper type, and elastic component 30 is spring.
The technological scheme of Application Example one, owing to being provided with pockets and Sealing 40, makes to carry out soft seal by Sealing 40 between valve body 10 and spool 20.Like this, between valve body 10 and spool 20, both can effectively seal, and lower with the metal conical surface required precision of valve body 10 to spool 20.Meanwhile, spool 20 is not directly contacted, the risk that can effectively avoid both to be bonded together due to molecule activity with valve body 10.Moreover owing to adopting soft seal, sealing material self has certain plasticity, thus when adhering to, impurity (particle) can compensate by the distortion of self, thus do not affect seal clearance, avoid the increase of leaking.And then the present embodiment has solved the problem that in prior art, cost is high, intermetallic bonding easily occurs and easily increases because of impurity (particle) impact leakage rate effectively.
As shown in Figure 3 and Figure 4, in embodiment one, pockets comprises the first groove section, and the first groove section is at the bottom land along pockets to the direction of the notch of pockets, and spool 20 in the radial direction, shrinks gradually ground and stretches out.Be the inner large little structure of notch.The first groove section is positioned at inner groove width, and to be positioned at outer end than the first groove section be that the groove width at notch place is large.Can effectively prevent like this Sealing 40 under High Temperature High Pressure effect because being extruded the generation of the bad phenomenon that departs from pockets.Because Sealing 40 is significantly less than the size of Sealing 40 at first other part places of groove section in the size that is positioned at the first groove section outer end place, can effectively Sealing 40 be remained on like this to the inside of the first groove section, be difficult for departing from.
As shown in Figure 4, in embodiment one, pockets also comprises the second groove section that is positioned at the first groove intersegmental part and is communicated with the first groove section, and the second groove section stretches out to the direction of the notch of pockets gradually at the bottom land along pockets with expanding.As shown in Figure 4, the groove width relation of the first groove section and the second groove section is as follows:
D1＜D2，D3＜D2；
Preferably, D1 > D3.
Wherein, D2 is the groove width of the outer end of the first groove section, and D1 is the inner groove width of the first groove section, is also the groove section of the second groove section outer end, and D3 is the inner groove width of the second groove section.
Cone seal material (being Sealing 40) is adjacent to the pockets of spool 20 under pressure, thereby can effectively reduce the leakage rate of sealing material and pockets herein.
In order can to realize circumferentially, axially sealing material (being Sealing 40) is set in staggered pockets, the application adopts Shooting Technique, fills up pockets with material (being Sealing 40) that can injection moulding.And adopt the technique of injection moulding to carry out the filling of Sealing 40, can solve on the one hand processing, the assembly problem of Sealing 40, also can improve on the other hand the combination of the pockets of Sealing 40 and spool 20, reduce gap between the two, thereby prevent that in use refrigerant enters the gap of the two, by Sealing 40 extrusion-deformations, even extrude pockets.Sealing 40 seals with the metal covering of valve body 10, due to the plasticity of material, can produce distortion and automatically make up seal clearance under High Pressure on the one hand, thereby reach better sealing effect and reduce the impact of impurity (particle); On the other hand, compare and the hard sealing of metal, can effectively avoid due to long-time pressurized, intermetallic is because the phenomenon that molecular force produces bonding occurs.
In order to reach sealing effect effectively, at the bottom land along pockets, to the direction of the notch of pockets, Sealing 40 protrudes from pockets.So just can make up foozle and form seal ring effectively.On the other hand, because this spool 20 is in the time that commutation finishes, can bear an impact force, when Sealing 40 is with valve body 10 butt, the active force of valve body 10 to Sealing 40.Due to the existence of this active force, it is too many that Sealing 40 can not exceed spool, otherwise the part of protruding is under the long-term effect of this power, has by the risk of the bad generation such as conquassation, destruction, thereby affects sealing effect.
Sealing 40 can be selected nonmetallic material, as selects nonmetallic material, considers the wearing and tearing feature of working environment and nonmetallic material.The application specifies bulge quantity, requires to reach in the scope of 0.3mm to 0.5mm, and further, the Sealing 40 of nonmetallic material can be selected Injection Molding performance and the rear good ETFE of airtight performance of distortion or PFA material.
Sealing 40 also can the selection of material hardness lower than the metallic material of the material hardness of spool, as select metallic material, consider the wearing and tearing feature of working environment and metallic material.The application specifies bulge quantity, requirement reaches in the scope of 0.2mm to 0.4mm, further, the Sealing 40 of metallic material can be selected material hardness aluminum or aluminum alloy material softer and easy to process, is directly molded on spool 20 by hot pouring method.
In embodiment one, spool 20 comprises that the first disk body 21, the second disk body 22 and separating part 23, the first disk bodies 21 between the first disk body 21 and the second disk body 22 form the first end of spool 20, and the second disk body 22 forms the second end of spool 20; Pockets is arranged on spool 20, two the first axial groove 231, the first axial grooves 231 that pockets comprises the first annular groove 211 of being arranged on the first disk body 21, be arranged on the second annular groove 221 on the second disk body 22 and be arranged on separating part 23 both sides are all communicated with the first annular groove 211 and the second annular groove 221.The first annular groove 211 and the second annular groove 221 are the peripheral groove extending along circumferentially, and two peripheral grooves communicate with two the first axial grooves 231, can realize high-pressure channel and low-pressure channel and separate.Said structure is easily processed, can be effectively cost-saving.
As shown in Figure 6 and Figure 7, according to the application embodiment two rotary flow path switching valve and embodiment one difference be the setting position of pockets, in embodiment two, valve body 10 has multiple adapters hole 11, pockets is arranged on valve body 10.In embodiment two, pockets comprises that the 3rd annular groove 101 of the top that is arranged on multiple adapters hole 11, the Fourth Ring groove 102 of below that is arranged on multiple adapters hole 11 and the second axial groove 103, the second axial grooves 103 that are arranged on 11 left and right sides, each adapter hole are all communicated with the 3rd annular groove 101 and Fourth Ring groove 102.The 3rd annular groove 101 and Fourth Ring groove 102 are the peripheral groove extending along circumferentially, and two peripheral grooves communicate with two the second axial grooves 103 of 11 left and right sides, each adapter hole, can realize high-pressure channel and low-pressure channel and separate.
In embodiment two, the second axial groove 103 is four, and each the second axial groove 103 is arranged between two adjacent adapter holes 11.Four the second axial grooves 103 are distributed on four neutral positions of taking over hole 11 axial angles, and said structure can simplified structure, and then can be effectively cost-saving.
As shown in Figure 7, in embodiment two, pockets only comprises the first groove section, and at the bottom land along pockets, to the direction of the notch of pockets, in the radial direction, the first groove section stretches out spool 20 gradually with shrinking.Be the inner large little structure of notch.Can effectively prevent like this Sealing 40 generation because of the squeezed bad phenomenon that departs from pockets under High Temperature High Pressure effect.In addition, have the positive pressure that acts on Sealing 40 in rotary flow path switching valve, the Sealing 40 that afterbody is taper can be adjacent to pockets under pressure, improves widely the sealing of pockets.Certainly,, in embodiment two, pockets also can adopt the structure communicating with embodiment one.
The application's rotary flow path switching valve is preferably the four-way change-over valve of controlling gas or flow direction for heat pump.Preferably be applicable in the system such as heat pump air conditioner, heat pump water heater.
As can be seen from the above description, the above embodiments of the present invention have realized following technique effect:
The application solves the sealing problem of spool and valve body effectively, improves the validity and reliability of sealing, meanwhile, eliminates the risk that intermetallic bonds due to Long contact time.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (11)
1. a rotary flow path switching valve, comprising:
Valve body (10), has valve pocket, and described valve pocket is cone table shape;
Spool (20), suitable with described valve pocket shape, described spool (20) is arranged in described valve pocket rotationally, between the sidewall of described spool (20) and described valve body (10), form separate high-pressure channel and low-pressure channel, described spool (20) has along the first end of its axial direction and the second end, and the area of the first end of described spool (20) is less than the area of the second end of described spool (20);
Drive unit, is positioned at the first end of described spool (20) and drives and be connected to drive described spool (20) to rotate with described spool (20);
Elastic component (30), is positioned at the second end of described spool (20), and distinguishes butt with described valve body (10) and described spool (20),
It is characterized in that,
Described valve body (10) or spool (20) are provided with pockets, in described pockets, be provided with Sealing (40), described Sealing (40) protrude from described pockets and with described spool (20) or described valve body (10) butt, described Sealing (40) is separated described high-pressure channel and described low-pressure channel.
2. rotary flow path switching valve according to claim 1, is characterized in that, described pockets comprises the first groove section, and described the first groove section stretches out to the direction of the notch of described pockets gradually at the bottom land along described pockets with shrinking.
3. rotary flow path switching valve according to claim 2, it is characterized in that, described pockets also comprises the second groove section that is positioned at described the first groove intersegmental part and is communicated with described the first groove section, and described the second groove section stretches out to the direction of the notch of described pockets gradually at the bottom land along described pockets with expanding.
4. rotary flow path switching valve according to claim 1, is characterized in that, described Sealing (40) fills up described pockets by injection moulding mode or pouring type.
5. rotary flow path switching valve according to claim 4, it is characterized in that, described Sealing (40) is nonmetallic material fill up described pockets by injection moulding mode, and described Sealing (40) protrudes from described pockets 0.3mm to 0.5mm at the bottom land along described pockets to Sealing in the direction of the notch of described pockets.
6. rotary flow path switching valve according to claim 4, it is characterized in that, described Sealing (40) is for metallic material and fill up described pockets by pouring type, the material hardness of described Sealing (40) is lower than the material hardness of described spool (20), and described Sealing (40) protrudes from described pockets 0.2mm to 0.4mm at the bottom land along described pockets to the direction of the notch of described pockets.
7. according to the rotary flow path switching valve described in any one in claim 1 to 6, it is characterized in that, described spool (20) comprise the first disk body (21), the second disk body (22) and be positioned at described the first disk body (21) and described the second disk body (22) between separating part (23), described the first disk body (21) forms the first end of described spool (20), and described the second disk body (22) forms the second end of described spool (20); Described pockets is arranged on described spool (20), described pockets comprises the first annular groove (211) of being arranged on described the first disk body (21), is arranged on the second annular groove (221) on described the second disk body (22) and is arranged on two first axial grooves (231) of described separating part (23) both sides, and described the first axial groove (231) is all communicated with described the first annular groove (211) and described the second annular groove (221).
8. according to the rotary flow path switching valve described in any one in claim 1 to 6, it is characterized in that, described valve body (10) has multiple adapters hole (11); Described pockets is arranged on described valve body (10), described pockets comprise the top that is arranged on described multiple adapters holes (11) the 3rd annular groove (101), be arranged on described multiple adapters holes (11) below Fourth Ring groove (102) and be arranged on second axial groove (103) of the left and right sides, each described adapter hole (11), described the second axial groove (103) is all communicated with described the 3rd annular groove (101) and described Fourth Ring groove (102).
9. rotary flow path switching valve according to claim 8, it is characterized in that, described the second axial groove (103) is four, and each described the second axial groove (103) is arranged between adjacent two described adapter holes (11).
10. rotary flow path switching valve according to claim 5, is characterized in that, the material of described Sealing (40) is ETFE or PFA.
11. rotary flow path switching valves according to claim 6, is characterized in that, the material of described Sealing (40) is aluminum or aluminum alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410458886.4A CN104197090A (en) | 2014-09-10 | 2014-09-10 | Rotary type fluid passage changeover valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410458886.4A CN104197090A (en) | 2014-09-10 | 2014-09-10 | Rotary type fluid passage changeover valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104197090A true CN104197090A (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410458886.4A Pending CN104197090A (en) | 2014-09-10 | 2014-09-10 | Rotary type fluid passage changeover valve |
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| CN (1) | CN104197090A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595576A (en) * | 2015-01-30 | 2015-05-06 | 航天材料及工艺研究所 | Non-metal valve core and molding process thereof |
| CN105987202A (en) * | 2015-02-16 | 2016-10-05 | 浙江三花旋转阀有限公司 | Rotary flow path switching valve |
| CN107269926A (en) * | 2017-07-12 | 2017-10-20 | 太仓旺泰净化设备有限公司 | A kind of valve element |
| WO2018099359A1 (en) * | 2016-11-29 | 2018-06-07 | 杭州三花研究院有限公司 | Flow control device |
| CN108775437A (en) * | 2018-06-14 | 2018-11-09 | 山西省水利机械有限公司 | A kind of driving structure and valve |
| CN110360343A (en) * | 2019-08-09 | 2019-10-22 | 绵阳富临精工机械股份有限公司 | Four-way valve |
| CN111946865A (en) * | 2019-05-14 | 2020-11-17 | 浙江三花制冷集团有限公司 | Rotary reversing valve |
| CN112324947A (en) * | 2017-08-28 | 2021-02-05 | 浙江三花制冷集团有限公司 | Rotary reversing valve |
| WO2024022518A1 (en) * | 2022-07-29 | 2024-02-01 | 浙江盾安人工环境股份有限公司 | Four-way valve |
| CN110360343B (en) * | 2019-08-09 | 2024-04-16 | 四川芯智热控技术有限公司 | Four-way valve |
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| CN203560514U (en) * | 2013-11-22 | 2014-04-23 | 广东明珠流体机械有限公司 | Four-way hard-sealing ball valve |
Cited By (14)
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| WO2018099359A1 (en) * | 2016-11-29 | 2018-06-07 | 杭州三花研究院有限公司 | Flow control device |
| US11125345B2 (en) | 2016-11-29 | 2021-09-21 | Zhejiang Sanhua Intelligent Controls Co., Ltd. | Flow control device |
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| CN108775437A (en) * | 2018-06-14 | 2018-11-09 | 山西省水利机械有限公司 | A kind of driving structure and valve |
| CN108775437B (en) * | 2018-06-14 | 2023-10-10 | 山西省水利机械有限公司 | Driving structure and valve |
| CN111946865A (en) * | 2019-05-14 | 2020-11-17 | 浙江三花制冷集团有限公司 | Rotary reversing valve |
| CN110360343A (en) * | 2019-08-09 | 2019-10-22 | 绵阳富临精工机械股份有限公司 | Four-way valve |
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| WO2024022518A1 (en) * | 2022-07-29 | 2024-02-01 | 浙江盾安人工环境股份有限公司 | Four-way valve |
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Application publication date: 20141210 |