CN101523096A - Valve - Google Patents
Valve Download PDFInfo
- Publication number
- CN101523096A CN101523096A CNA2007800362833A CN200780036283A CN101523096A CN 101523096 A CN101523096 A CN 101523096A CN A2007800362833 A CNA2007800362833 A CN A2007800362833A CN 200780036283 A CN200780036283 A CN 200780036283A CN 101523096 A CN101523096 A CN 101523096A
- Authority
- CN
- China
- Prior art keywords
- valve
- port
- fitting surface
- connectivity structure
- communicated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/072—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members
- F16K11/074—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members with flat sealing faces
- F16K11/0743—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members with flat sealing faces with both the supply and the discharge passages being on one side of the closure plates
Abstract
A valve includes a valve body provided with a first engagement face defining a plurality of ports, and a rotatable core provided with a second engagement face engaging with the first engagement face and a pressure balance face to receive a pressure from a balance fluid in order to balance the pressure received from the second engagement face thereof.
Description
Technical field
The present invention relates to a kind of valve, more particularly, relate to a kind of valve that can be used for high pressure.
Background technique
Valve is the device that is used for controlling fluid flow, pressure and the flow direction.Here said " fluid " comprises liquid, gas, gas-liquid mixture, solution, emulsion or suspension, and it may comprise undissolved particle or other solids, can be the even or heterogeneous mixture that has comprised at least a fluid.Valve is made up of valve body, open-shut device, driving mechanism, Sealing and fastening piece etc. usually.The control function of valve is to rely on driving mechanism to order about motions such as revolution of open-shut device do or slippage to realize with the flow direction of change fluid or the size of Flow area.Having many uses of valve is general, and the valve of all kinds purposes is arranged in the market, such as, switching valve, in two or more states, switch, to change direction of flow and path, again such as, sluice valve is used for choosing one the tunnel from multi-path fluid, will not blocked by other road fluid of gating or gather discharge.
In described valve, generally provide an elastic force that valve body and open-shut device are compressed, to guarantee closely cooperating and sealing effect between them by spring.But spring is easy to generate elastic fatigue after repeatedly using, during in particular for the gas of High Temperature High Pressure, spring may use a fatigue that just produces after twice to a certain degree, lose part elasticity, thereby can not guarantee the sealing effect between valve body and the open-shut device in case leak-stopping is let out and scurry etc. problem mutually.
Therefore, be necessary to provide a kind of valve that can bear high-pressure liquid, it can guarantee sealing effect, and can not lose efficacy through repeatedly using.
Summary of the invention
Embodiments of the invention provide a kind of valve, and it comprises: valve body, first fitting surface is provided, and this first fitting surface is provided with at least two ports; Rotatable spool, provide with close-fitting second fitting surface of described first fitting surface and the pressure that can accept the balance fluid with the pressure balance face of balance valve core from the suffered pressure of second fitting surface.
Description of drawings
Fig. 1 is the assembling section of a kind of sluice valve of the present invention;
Fig. 2 is the three-dimensional exploded view of valve shown in Figure 1, has shown a valve upper cover, the spool of a two-piece type and a valve body lower cover;
Fig. 3 has shown the another kind of mode of execution of spool, and the connectivity structure of this spool is with shown in Figure 2 different;
Fig. 4 has shown another kind of sluice valve of the present invention;
Fig. 5 has shown a kind of switching valve of the present invention;
Fig. 6 is the first mated condition figure of valve shown in Figure 5;
Fig. 7 is the second mated condition figure of valve shown in Figure 5.
Embodiment
Fig. 1～3 have shown a kind of sluice valve that can be used for controlling pressurized gas, can be used for from the multichannel air inlet gating one road from gating outlet output, and the back is not gathered from another outlet output by the air inlet of gating in all the other roads.
As shown in Figure 1, this sluice valve 100 comprises valve body 1 and the spool 3 that is contained in described valve body 1.In the present embodiment, this valve body 1 comprises loam cake 11 and lower cover 12, and this loam cake 11 and lower cover 12 can be bolted together and seal with O shape circle 42.
The upper surface 120 of described lower cover 12 is as first fitting surface, and in the present embodiment, this upper surface is the plane.On described first fitting surface 120, a plurality of (two or more) port is arranged.In one embodiment, port one 21 is as suction port, and port one 22 is as the air outlet.Suction port 121 joins by the supply air line of gas-entered passageway 21 with the valve body outside, and gating outlet 122 is joined by the outer outlet pipe of outlet passageway 22 and valve body, and jointing adopts cutting ferrule to seal
Be provided with a cavity 111 in the loam cake 11 and be used for holding spool 3.In the present embodiment, spool 3 parts that are contained in this cavity 111 are stretched out from the upper end open of loam cake 11, so that can link to each other with the outer drive unit of valve body.Described drive unit is used for driving valve core rotation.Seal by O shape circle 41 between spool 3 and the loam cake 11.
In the present embodiment, spool is a two-part construction, and it comprises upper valve core 31 and lower valve core 32.Upper valve core 31 is as driving element, and the drive unit outer with valve body links to each other, and drives lower valve core 32 and rotates; Lower valve core 32 is as mating member, provide a lower surface 320 to cooperate with first fitting surface 120 on the lower cover 12, offering the suction port 121 on corresponding first fitting surface 120 and the groove (described groove will combine detailed description subsequently with Fig. 2) of gating outlet 122 on this second fitting surface 320 as second fitting surface.In one embodiment, described lower valve core 32 also provides a upper surface 30 as pressure balance face, be used for the pressure of receiving balance fluid, put on the pressure of described second fitting surface 320 with the gas of input the suction port 121 of balance from first fitting surface 120.Wherein, bringing pressure to bear on described pressure balance face 30 directly or indirectly, is the balance fluid with the fluid of the pressure on balance second fitting surface 320.
In the present embodiment, between upper and lower spool 31 and 32, be formed with a cavity 313, be provided with an elastic element 33 in this cavity 313.This elastic element 33 applies an elastic force on lower valve core 32, and second fitting surface 320 is close on first fitting surface 120, and lower valve core 32 produces unnecessary movement when preventing from also not charge into the balance fluid in described cavity 313.Charge into the balance fluid in described cavity 313 after, this elastic element 33 also can provide an aux. pressure that puts on lower valve core 32.In one embodiment, described elastic element 33 comprises a plurality of dish springs, also has a packing ring 34 to be used for fixing described dish spring in addition and the elastic force of described dish spring is delivered on the lower valve core 32 equably.The balance fluid can be filled in all the other spaces in the cavity 313 outside dish spring 33 and the packing ring 34.This balance fluid applies a pressure directly or indirectly in pressure balance face 30.For instance, if described packing ring 34 is solid, and have a face to be close on the pressure balance face 30, with regard to situation as shown in Figure 1, then the pressure of balance fluid will put on this packing ring 34 and by this packing ring 34 and be delivered on the pressure balance face 30; If described packing ring 34 is provided with a plurality of through holes, make the balance fluid can touch pressure balance face 30, then the pressure of balance fluid both can act on this packing ring 34 and by this packing ring 34 and be delivered to pressure balance face 30, also can directly act on the pressure balance face 30.
Because the existence of balance hydrodynamic pressure, no longer need to rely on the elastic force of dish spring 33 to come pressure on balance second fitting surface 320, the very little elastic force that provides described dish spring 33 just can realize being sealed and matched reliably between first, second fitting surface 120 and 320, prevent gas leakage or scurry mutually, even therefore under high pressure or reuse under the High Temperature High Pressure and still can guarantee to be sealed and matched reliably, can not produce seal failure.
If the lower surface (second fitting surface) 320 of lower valve core 32 has produced wearing and tearing after repeatedly using, cause lower valve core 32 thickness to reduce, influence sealing effect, can also between lower valve core 32 and convex pad 34, increase and regulate pad to remedy the thickness of wearing and tearing, the very low easy operating again of the method cost.
As shown in Figure 2, offered bolt hole 113 and 123 on the upper and lower cover 11 and 12 accordingly to accommodate the bolt that is used for fixing described upper and lower covers.Among one embodiment, 17 ports are arranged on first fitting surface 120, wherein 16 suction ports 121 are used for importing one tunnel air inlet respectively, gating outlet 122 those road air inlets that are used for exporting gating.For the number of suction port and gating outlet without limits, it can change according to practical application.Such as, can there be the outlet of 2 air inlet port ones gating, 3 air inlet port one gatings to export or 2 gating outlets of 2 air inlet ports etc.
Described upper valve body 31 comprises and can stretch out bull stick 311 that connects drive unit and the change 312 that is used for accommodating lower valve core 32 from loam cake 11 upper end open.The sidewall of change 312 is offered a pair of locating slot 317, accordingly, at lower valve core 32 sidewalls a pair of locating stud 327 is installed, and when being installed to lower valve core 32 in the change 312, locating stud 327 is stuck in the locating slot 317, prevents that lower valve core 32 from rotating relative to upper valve core 31.Like this, just make lower valve core (mating member) 32 to rotate with upper valve core (driving element) 31, that is, lower valve core 32 is Immobile with respect to upper valve core 31 formulas on sense of rotation; Simultaneously, lower valve core 32 in the vertical directions can move up and down, that is, lower valve core 32 is movable on the direction perpendicular to first, second fitting surface 120,320 perpendicular to sense of rotation in other words conj.or perhaps.An opening 316 has also been offered in change 312 on its sidewall.After the assembling, this opening 316 will be communicated with cavity 111 in the loam cake 11 and the cavity 313 between upper and lower spool 31 and 32.
The outlet slot 325 that second fitting surface 320 is provided with gating groove 321, collecting tray 323 and communicates with this collecting tray 323.Gating groove 321 can be used as the connectivity structure that is communicated with one of gating outlet 122 and suction port 121.After the assembling, gating groove 321 1 ends are aimed at the gating outlet 122 on first fitting surface 120 all the time, and the other end can be aimed at each suction port 121 seriatim with the rotation of spool 3, thus each road air inlet of gating seriatim, and import to gating outlet and output.Collecting tray 323 can be used as connection not by the connectivity structure of the suction port 121 of gating.After the assembling, collecting tray 323 is aimed at not by the suction port 121 of gating, will not exported in the cavity 111 of loam cake 11 from outlet slot 325 by the air inlet of gating, makes it enter cavity 313 between upper and lower spool 31 and 32 from locating slot 317 or opening 316.
In one embodiment, described valve upper cover 11 offers the space that a balance fluid port one 15 is used for being communicated with loam cake inner cavity 111 and these enclosed cavity 111 outsides, the i.e. space of valve body 1 outside.This balance fluid port one 15 can be used as the balance fluid inlet, introduces external fluid with dealing cavity 111 and makes the balance fluid, also can be used as the balance fluid output, is used for exporting from the suction port 121 of first fitting surface 120 being incorporated into balance fluid in the cavity 111.Wherein, in order to be different from external fluid, the described fluid of introducing from the suction port 121 of first fitting surface 120 is called internal flow.Described balance fluid port one 15 can connect pressure control device the pressure of the fluid in the cavity 111 is controlled, and can be with this pressure control for being greater than or less than, or ground preferably, be substantially equal to the pressure of the fluid of introducing from the suction port 121 of first fitting surface 120.Although for the absolute value of the pressure of balance fluid without limits, it can change with pressure on second fitting surface 320, in general practical application, the pressure of balance fluid is greater than barometric pressure.
So just having formed one is used for the balance fluid is guided to balance fluid passage on the parts (for example packing ring 34 as shown in Figure 1) that pressure balance face 30 or is close to pressure balance face 30.In one embodiment, the balance fluid passage comprises described collecting tray 323, outlet slot 325, cavity 111, locating slot 317 or opening 316 and cavity 313, is used for the internal flow that the port on first fitting surface 120 enters drawn making the balance fluid.In another embodiment, the balance fluid passage communicates with balance fluid port one 15, comprises cavity 111, locating slot 317 or opening 316 and cavity 313, is used for importing external fluid and makes the balance fluid.
The present invention for the geomery of the connectivity structure that is communicated with the port (suction port 121 or gating outlet 122) on described first fitting surface 120 without limits.As shown in Figure 3, the connectivity structure that is used for being communicated with suction port 121 and gating outlet 122 also can be hole or the slit 321a that is formed at lower valve core 32a inside, and the both ends open 3211a of this hole or slit 321a and 3212a are exposed on the second fitting surface 320a.
Fig. 4 has shown another kind of sluice valve, be used for from the multichannel air inlet gating to lead up to gating outlet output, and other is not directly blocked by the air inlet of gating and does not carry out exporting.Gating groove 321b only is set one on the second fitting surface 320b of this sluice valve, after the assembling, this gating groove 321b one end is aimed at gating outlet 122b on the first fitting surface 120b all the time, the other end is aimed at each suction port 121b one by one with the rotation of spool, just can realize the gating of each road air inlet seriatim, and do not blocked by the second fitting surface 320b by the air inlet of gating, do not export.Other structure of this sluice valve can be with the sluice valve shown in Fig. 1 and 2 identical or similar, do not repeat them here.
If when having only 1 suction port and 1 gating outlet on the described first fitting surface 120b, rotation along with spool, suction port and gating outlet have only connected sum not to be communicated with two states, are equivalent to this valve and have realized opening of gas and closed two states, therefore can be used as switch valve and use.
Fig. 5 has shown a kind of switching valve, and it can switch in two states, to change the flow direction and the path of fluid.Provide on the first fitting surface 120c of this valve on 123,125 and 127 and three outlets of three inlets, 124,126 and 128, the second fitting surface 320c three road connectivity slot 322c are provided.By rotary spool, this valve can switch in two kinds of gas circuit coupled condition, such as, when first state, the cooperation situation of first, second fitting surface as shown in Figure 6, during second state, the cooperation situation of first, second fitting surface is as shown in Figure 7.
For the valve shown in Fig. 4 or 5, do not do the balance fluid on the pressure balance face owing to internal flow is guided to, can be from the outside balance fluid of introducing of valve body.
In aforementioned each valve, the spool of two-piece type also can replace to the structure of single type, and the spool of single type can comprise bull stick and be integrally formed in the mating member of bull stick end.For the spool of single type, other relative with its second fitting surface on the upper surface of mating member or mating member surfaces can be used as pressure balance face.
In addition, also without limits for the shape of the elastic element in aforementioned each valve and position.Except the dish spring, elastic element also can be any other spring, such as helical spring, flat spring, valute spring, belleville spring, wavy spring, annular spring, clockwork spring, cushion etc., or other can provide the resilient member or the material of elastic force, such as elastomer etc.Elastic device can be arranged between spool and the valve body, and an end is butted on that the other end is butted on the spool on the valve body, can also be arranged at outside the valve body.
First, second fitting surface can be the plane, also can be curved surface, such as conical surface etc.
Pressure balance face can be parallel to second fitting surface, also can be not parallel to second fitting surface.For example, spool is the centrum shape, and its lower surface is made second fitting surface, and conical outer surface is made pressure balance face, and then pressure balance face is not parallel to second fitting surface.
The mode of driving valve core rotation can have multiple, such as, manual, pneumatic or motor driving, perhaps other driving mode because driving mode is the known technology of industry, does not repeat them here.
The material that is fit to make valve body and spool comprises high temperature resistance material, compression-resistant material and can be to the material of chemical product as acid, alkali or other reactive complexes sensitivity.These materials comprise metal and alloy thereof, include but not limited to steel or stainless steel, superalloy, engineering plastics, pottery, composite material, polymer or the above-mentioned combination in any of different brackets.Wherein, can handle especially first fitting surface, such as, carry out nitriding and grinding disposing, to guarantee planeness and wear resistance.Especially, the material of second fitting surface can select for use heat-resisting, wear-resisting material to make, to guarantee the sealing effect of it and first fitting surface.These materials include but not limited to modified polyimide, modification polytetrafluoroethylene (PTFE), modification fluorine rubber (FKM), modified graphite, red copper or bronze etc.Such as, second fitting surface can adopt the modified polyimide material to make (if spool is the structure of last lower valve core two-piece type, whole lower valve core can be made with the modified polyimide material), because the modified polyimide material has superpower heat-resisting and wear resistance, can bear the above high temperature of 200 degree for a long time and can not produce inefficacy, so still can keep excellent sealing performance even if at high temperature carry out work.
Related description in the above-mentioned embodiment that exemplifies, for example and data only as demonstrating and the usefulness of illustration, and non-limiting scope of the present invention.Any insubstantial modifications processing of being done according to the present invention all falls in the claim scope of the present invention.Therefore, the spirit and scope of annex claims are not limited to the explanation version of the application to this invention.
Claims (20)
1, a kind of valve comprises:
Valve body provides first fitting surface, and this first fitting surface is provided with at least two ports;
Rotatable spool, provide with close-fitting second fitting surface of described first fitting surface and the pressure that can accept the balance fluid with the pressure balance face of balance valve core from the suffered pressure of second fitting surface.
2, valve as claimed in claim 1 is characterized in that: described port is used for making the fluid process, and it comprises one or more fluid inputs or outlet.
3, valve as claimed in claim 1 is characterized in that: described spool also comprises the connectivity structure of at least two ports that are used for being communicated with described first fitting surface.
4, valve as claimed in claim 3 is characterized in that: described connectivity structure is to be opened in the groove on described second fitting surface or to be opened in described valve core inside and the passage of opening on described second fitting surface.
5, valve as claimed in claim 3, it is characterized in that: described first fitting surface comprises first port, second port and the 3rd port, described connectivity structure comprises first connectivity structure, under first state, described first connectivity structure is communicated with first and second port, under second state, described first connectivity structure is communicated with first and third port.
6, valve as claimed in claim 5, it is characterized in that: described first fitting surface also comprises the 4th port, described connectivity structure also comprises second connectivity structure, under first state, first connectivity structure is communicated with first and second port, and second connectivity structure is communicated with other port except that first and second port, under second state, first connectivity structure is communicated with first and third port, and second connectivity structure is communicated with other port except that first and third port.
7, valve as claimed in claim 5, it is characterized in that: described first fitting surface also comprises the 4th port, described connectivity structure also comprises second connectivity structure, under first state, first connectivity structure is communicated with first and second port, and second connectivity structure is communicated with third and fourth port, under second state, first connectivity structure is communicated with first and third port, and second connectivity structure is communicated with second, four ports.
8, valve as claimed in claim 5, it is characterized in that: described first fitting surface also comprises the 4th, the 5th, the 6th port, described connectivity structure also comprises second connectivity structure and third connecting structure, under first state, first connectivity structure is communicated with first and second port, second connectivity structure is communicated with third and fourth port, the third connecting structure is communicated with the 5th, six ports, under second state, first connectivity structure is communicated with first and third port, second connectivity structure is communicated with the 4th, six ports, third connecting structure connection second, five-port.
9, valve as claimed in claim 1 is characterized in that: also comprise an elastic device, be used to provide an elastic force with the first fitting surface direction pushing of the past valve body of second fitting surface of spool.
10, valve as claimed in claim 1 is characterized in that: also comprise the balance fluid passage, be used for being communicated to the balance fluid on the described pressure balance face or be close on other element on the described pressure balance face.
11, valve as claimed in claim 10 is characterized in that: described balance fluid passage communicates with at least one port on described first fitting surface.
12, valve as claimed in claim 10 is characterized in that: described valve body or spool also comprise the balance fluid port with the valve body exterior, and described balance fluid passage communicates with this balance fluid port, to introduce external fluid as the balance fluid.
13, valve as claimed in claim 1 is characterized in that: the pressure of described balance fluid more than or equal to spool from the suffered pressure of second fitting surface.
14, valve as claimed in claim 1 is characterized in that: described first, second fitting surface is the plane.
15, valve as claimed in claim 1 is characterized in that: described pressure balance face is parallel to described second fitting surface.
16, valve as claimed in claim 1 is characterized in that: described spool comprises dismountable mating member and driving element, and described second fitting surface is positioned on the described mating member, and described driving element is used for driving described mating member and rotates.
17, valve as claimed in claim 16 is characterized in that: described mating member is movable with respect to driving element in the direction perpendicular to first, second fitting surface.
18, valve as claimed in claim 17 is characterized in that: also be provided with elastic device between described mating member and the described driving element.
19, valve as claimed in claim 17 is characterized in that: also be provided with the adjusting pad that is used for increasing on perpendicular to the direction of first, second fitting surface spool thickness between described mating member and the described driving element.
20, valve as claimed in claim 1 is characterized in that: described second fitting surface adopts the modified polyimide material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007800362833A CN101523096B (en) | 2006-09-28 | 2007-09-28 | Valve |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610159720.8 | 2006-09-28 | ||
| CN200610159720 | 2006-09-28 | ||
| PCT/CN2007/070810 WO2008043301A1 (en) | 2006-09-28 | 2007-09-28 | Valve |
| CN2007800362833A CN101523096B (en) | 2006-09-28 | 2007-09-28 | Valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101523096A true CN101523096A (en) | 2009-09-02 |
| CN101523096B CN101523096B (en) | 2012-04-04 |
Family
ID=39282425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007800362833A Expired - Fee Related CN101523096B (en) | 2006-09-28 | 2007-09-28 | Valve |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101523096B (en) |
| WO (1) | WO2008043301A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103574099A (en) * | 2012-08-10 | 2014-02-12 | 道尼克斯索芙特隆公司 | Switching valve for liquid chromatography |
| CN103654425A (en) * | 2012-09-26 | 2014-03-26 | 苏州工业园区咖乐美电器有限公司 | Multi-way switching device for water way |
| CN103697003A (en) * | 2013-08-02 | 2014-04-02 | 王瑞林 | Tapered-surface reversing rotary valve |
| CN106870783A (en) * | 2015-12-12 | 2017-06-20 | 济南华信自动化工程有限公司 | The balanced valve of proportioning bin easy to use, simple to operate |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011159644A1 (en) * | 2010-06-16 | 2011-12-22 | Waters Technologies Corporation | Valve for high pressure analytical system |
| DE102012107378B4 (en) * | 2012-08-10 | 2014-05-15 | Dionex Softron Gmbh | Switching valve for liquid chromatography, in particular high-pressure switching valve for high performance liquid chromatography |
| US9297790B2 (en) | 2012-08-10 | 2016-03-29 | Dionex Softron Gmbh | Switching valve for liquid chromatography |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3892259A (en) * | 1974-01-16 | 1975-07-01 | Owatonna Tool Co | Rotary control valve |
| US4139355A (en) * | 1977-04-28 | 1979-02-13 | Essex Group, Inc. | Four wave valve for reversible cycle refrigeration system |
| DE3502847A1 (en) * | 1985-01-29 | 1986-07-31 | Rudolf Hausherr & Söhne GmbH & Co KG, 4322 Sprockhövel | Valve |
| US4884942A (en) * | 1986-06-30 | 1989-12-05 | Atlas Copco Aktiebolag | Thrust monitoring and balancing apparatus |
| CN1067104A (en) * | 1992-06-08 | 1992-12-16 | 武木兰 | High effeciency automatic balance valve |
| CN2183466Y (en) * | 1993-11-26 | 1994-11-23 | 谢晓林 | Rotary valve |
| US5727443A (en) * | 1994-11-28 | 1998-03-17 | A.E. Bishop & Associates Pty Limited | Method of balancing a hydraulic valve for a power steering gear |
| CN2533348Y (en) * | 2002-04-22 | 2003-01-29 | 杨润德 | Control valve |
| CN1332150C (en) * | 2004-10-21 | 2007-08-15 | 姜永明 | Electric four-way change valve |
-
2007
- 2007-09-28 WO PCT/CN2007/070810 patent/WO2008043301A1/en active Application Filing
- 2007-09-28 CN CN2007800362833A patent/CN101523096B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103574099A (en) * | 2012-08-10 | 2014-02-12 | 道尼克斯索芙特隆公司 | Switching valve for liquid chromatography |
| CN103574099B (en) * | 2012-08-10 | 2017-03-01 | 道尼克斯索芙特隆公司 | Control valve for liquid phase chromatographic analysis method |
| CN103654425A (en) * | 2012-09-26 | 2014-03-26 | 苏州工业园区咖乐美电器有限公司 | Multi-way switching device for water way |
| CN103697003A (en) * | 2013-08-02 | 2014-04-02 | 王瑞林 | Tapered-surface reversing rotary valve |
| CN103697003B (en) * | 2013-08-02 | 2018-09-28 | 王瑞林 | Conical surface reversing rotary valve |
| CN106870783A (en) * | 2015-12-12 | 2017-06-20 | 济南华信自动化工程有限公司 | The balanced valve of proportioning bin easy to use, simple to operate |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2008043301A1 (en) | 2008-04-17 |
| CN101523096B (en) | 2012-04-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101523096B (en) | Valve | |
| US8113484B2 (en) | High temperature ball valve seal | |
| CA2448859C (en) | Rotary sequencing valve with flexible port plate | |
| US20030062084A1 (en) | Fluid-directing multiport rotary valve | |
| EP2558754B1 (en) | Stackable shuttle valve | |
| JPH01283481A (en) | Flow control valve | |
| US20050269545A1 (en) | Eccentric type rotary valve | |
| US4548385A (en) | Flexible seal for rotor valves | |
| WO2005066529A1 (en) | Multiple port valve | |
| US6851938B2 (en) | Magnetic pumping system | |
| EP2115337A1 (en) | Port integrated within valve stem | |
| CA1316519C (en) | Drain through ball valve | |
| US4838312A (en) | Three-way valve | |
| CN101438086A (en) | Control valve | |
| US9657852B2 (en) | Flow through isolation valve for high pressure fluids | |
| CN109779569B (en) | Water and gas injection one-way device | |
| US9989164B1 (en) | Air-operated, magnetic, non-stall air directional control valve | |
| US8522825B2 (en) | Fluid apparatus unit structure | |
| US4448214A (en) | Multi-channel laminar-flow fluid valve | |
| US10344878B1 (en) | Rotary hydraulic distribution manifold for water play features | |
| US3460803A (en) | High temperature and pressure valve seat | |
| CN105927763A (en) | Convergence and divergence nozzle adjusting valve | |
| KR20060087339A (en) | Large diameter manual valve made of resin | |
| CN218670743U (en) | Pneumatic control three-way shuttle valve | |
| CN211779160U (en) | Improved structure of diverter valve |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120404 Termination date: 20190928 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |