CN106439046A - Gap adjusting valve - Google Patents
Gap adjusting valve Download PDFInfo
- Publication number
- CN106439046A CN106439046A CN201611148405.5A CN201611148405A CN106439046A CN 106439046 A CN106439046 A CN 106439046A CN 201611148405 A CN201611148405 A CN 201611148405A CN 106439046 A CN106439046 A CN 106439046A
- Authority
- CN
- China
- Prior art keywords
- valve
- shell
- valve element
- trouserss
- line slideway
- 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
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention relates to a gap adjusting valve. The gap adjusting valve comprises a valve shell, a valve base, a valve element, a guide rod, a linear guide rail, a servo oil cylinder and a fairing; the valve shell includes an inner shell and an outer shell; a medium runner is formed between the inner shell and the outer shell; the fairing is mounted at the end part of the front end of the inner shell; the valve base is mounted in the outer shell; the valve base is positioned at the back end of the outer shell; the valve element is connected with a piston rod of the servo oil cylinder through a guide rod mounted on the valve base, is supported by the linear guide rail, and is slidingly matched with the linear guide rail; and a sealing pair structure is arranged between the valve element and the valve base. The valve element slides on the linear guide rail to realize the guide function thereof, and the piston rod drives the valve element to move left and right to realize the force transfer function, so that the sag wear strain problem of the valve element during moving is solved, and the adjusting precision is improved; the axial stress of the valve element is a balanced structure, and is little influenced by the medium pressure in the adjusting process; the valve element is sensitive in motion, fast in response, low in wear and long in life; and the valve pressure adjusting function is effectively realized.
Description
Technical field
The present invention relates to valve technology field, more particularly to clearance type regulating valve.
Background technology
It is particularly on large-scale pipeline on aerospace industry testing stand at present and adjusts for flow, pressure, temperature etc., while opens
Close the regulating valve that speed is fast, required precision is high and mainly include Wheel-type regulating valve, sleeve plunger type regulating valve, annular slot formula three
Plant regulating valve.
Ordinary cartridge plunger type regulating valve is mainly made up of housing, sleeve, valve seat, valve element, guide post.Basis on its sleeve
Flow-rate adjustment requires to open up different windows, and sleeve, valve seat, guide post are fixed, and valve element is in the drive lower edge media flow of connecting rod
Axis is reciprocating.Because guide post is located at the region of media flow, while the window that medium is opened up from sleeve flows through, such
The flow field of regulating valve is relatively disorderly, and flow field quality is undesirable, it is impossible to meets and requires.
Common Wheel-type regulating valve is mainly made up of procapsid, adjustment disk, middle casing, back casing, electrodeless adjustment disk etc..
The window of different area is opened up on middle casing, and adjustment disk turns in the vertical plane of the driving lower edge media flow axis of oil cylinder
Dynamic, valve flow regulation is realized by closing different window on middle casing.The flow adjustment curve of the regulating valve is more solid
Fixed, it is difficult to meet LINEAR CONTINUOUS regulatory demand.While the profile of adjustment disk is more different in nature, processing difficulties are cast, deformation is big, product
Quality it is difficult to ensure that.
Normal slot formula regulating valve is mainly made up of valve body, valve seat, valve element, transmission oil cylinder etc..Valve element is by being driven oil cylinder
Drive reciprocating along media flow axis.Normal slot formula regulating valve shakes very big sky in use, particularly
In gas field, easily there is valve element tenesmus, displacement transducer Rapid Damage, degree of regulation is poor, situations such as signal response lag, to wind-tunnel
Test brings very big impact.
Content of the invention
The present invention is intended to provide clearance type regulating valve, its degree of regulation height, responding fast.
For reaching above-mentioned purpose, the technical solution used in the present invention is as follows：
Clearance type regulating valve, including valve housing, valve seat, valve element, guide post, line slideway, servo-cylinder and trouserss,
The valve housing includes inner shell and shell, forms medium runner between the inner shell and shell, and the trouserss are arranged on inner shell
The end of front end, the valve seat is arranged on inside the shell, and valve seat is located at the rear end of shell；
The line slideway and servo-cylinder are in inner shell, and the guide post is through the interior conduit of valve seat, the valve
Core is connected with the piston rod of servo-cylinder by the guide post on valve seat, and the valve element is supported by line slideway, valve element
It is slidably matched with line slideway, the valve element has sealing auxiliary structure with valve base chamber.
Further, also include for detecting the first displacement transducer of piston rod displacement and/or for detecting valve element position
The second displacement sensor of shifting, the displacement signal of the first displacement transducer impression output piston bar, the second displacement
Sensor is experienced and exports the displacement signal of valve element.
Further, first displacement transducer is installed on servo-cylinder tail end and is connected with piston rod；Described second
Displacement transducer one end is hinged with valve ball, and the second displacement sensor other end is installed on the displacement sensor bracket on inner shell
Interior.
Further, the sealing auxiliary structure includes the hard alloy sealing surface of built-up welding on valve element, and built-up welding on valve seat
Hard alloy sealing surface.
Further, the valve housing includes procapsid, middle housing and back casing, the two ends of the middle housing respectively with
Procapsid and back casing connection, the procapsid and middle housing be inside and outside double-layer shell structure, the internal layer of the procapsid and in
The internal layer of housing constitutes inner shell, and the outer layer of the procapsid, the outer layer of middle housing and back casing constitute shell, the trouserss peace
The end of procapsid front end is mounted in, the valve seat is in back cover body, and the line slideway and servo-cylinder are arranged on middle shell
In body.
Further, the inwall at the shell rear portion has adjustment type face.Adjustment type face is the spy for being determined by control characteristic
Different type face.
Further, the trouserss include trouserss shell and trouserss matrix, the trouserss matrix and inner shell
End airtight connection, the trouserss jacket is on trouserss matrix, and the trouserss shell is cone, trouserss shell
Top rounding.
Further, there are some balancing holes on the trouserss shell.
Further, the line slideway has two, and two line slideways are symmetrical arranged with regard to the middle vertical plane of valve element.
Further, the line slideway is that rolling guide, the slide block of the rolling guide is affixed with valve element.
Further, between the displacement sensor bracket and second displacement sensor, packing is filled with.
Compared with prior art, the invention has the advantages that：
1. in the present invention, valve element is slided on line slideway and realizes valve element guide function, piston rod band movable valve plug or so fortune
Dynamic, it is achieved that power transmission function, being oriented to sagging abrasion when valve core movement is solved with power transmission function and pull problem, improves regulation
Precision；
2. valve element axially loaded is to be affected very little, valve core movement spirit by pressure medium balance type structure, during regulation
Quick, responding fast, and little, life-span length of wearing and tearing, effectively achieve the pressure adjusting function of valve.
Description of the drawings
Fig. 1 is the sectional view of bowing of the present invention；
Fig. 2 is the main sectional view of the present invention；
Fig. 3 is the side view of the present invention；
Fig. 4 is the sectional view in Fig. 2 at I；
Fig. 5 is the structural representation of trouserss in the present invention；
In figure：Housing, 3- back casing, 4- adjustment type face, 5- valve seat 6- valve element, 7- guide post, 8- rolling in 1- procapsid, 2-
Dynamic guide rail, 9- rail brackets, 10- servo-cylinder, the first displacement transducer of 11-, 12- second displacement sensor, 13- trouserss,
131- trouserss shell, 132- trouserss matrix, 133- trouserss fixed block.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with accompanying drawing, the present invention is entered
Row is further described.
As shown in Figure 1,2,3, 4, clearance type regulating valve disclosed by the invention, including valve housing, valve seat 5, valve element 6, leads
To bar 7, line slideway 8, servo-cylinder 10 and trouserss 13, valve housing includes inner shell and shell, is formed between inner shell and shell
Medium runner, trouserss 13 are arranged on inside the shell installed in the end of inner shell front end, valve seat 5, and valve seat 5 is located at the rear end of shell.
The inwall at shell rear portion has adjustment type face 4.Adjustment type face 4 is the special type face for being determined by control characteristic.
Line slideway 8 and servo-cylinder 10 in inner shell, valve element 6 by the guide post 7 on valve seat 5 with watch
The piston rod for taking oil cylinder 10 is affixed, piston rod and the universal connection of guide post 7, and guide post 7 is through the interior conduit at 5 center of valve seat, valve
Core 6 is supported by line slideway 8, and line slideway 8 is on rail brackets 9, and rail brackets 9 is fixed in inner shell.Valve element 6 with straight
Line guide rail 8 is slidably matched, preferably, line slideway 8 is that rolling guide, the slide block of rolling guide is affixed with valve element 6.As excellent
Choosing, as shown in figure 3, line slideway 8 has two, two line slideways 8 are symmetrical arranged with regard to the middle vertical plane of valve element.Preferably,
Two line slideways 8 and guide post 7 are at grade.
There is sealing auxiliary structure between valve element 6 and valve seat 5.Preferably, sealing auxiliary structure includes that the hard of built-up welding on valve element 6 is closed
The hard alloy sealing surface of built-up welding on golden sealing surface, and valve seat 5.The hard alloy of built-up welding makes sealing surface resistance to erosion, corrosion-resistant.
The circumference of valve element adopts PTFE seal,
Further, valve housing includes procapsid 1, middle housing 2 and back casing 3, the two ends of middle housing 2 respectively with fore shell
Body 1 and back casing 3 connect, and procapsid 1 and middle housing 2 are inside and outside double-layer shell structure, the internal layer of procapsid 1 and middle housing 2
Internal layer constitutes inner shell, and the outer layer of procapsid 1, the outer layer of middle housing 2 and back casing 3 constitute shell, and trouserss 13 are arranged on fore shell
The end of 1 front end of body, valve seat 5 is in back casing 3, and line slideway 8 and servo-cylinder 10 are in middle housing 2.Enter one
Step, adjustment type face 4 is located on the inwall of back casing 3.By between procapsid 1 and trouserss 13, between 1 two-layer of procapsid,
Between 2 two-layer of middle housing, adjustment type face 4, between valve seat 5 and 6 sealing pair of valve element, form the medium runner of whole valve.
Preferably, servo-cylinder 10 is installed on middle casing centerline, and when driving valve core movement, valve element uniform force.
6 axially loaded of valve element is balance type structure, is affected very little by pressure medium during regulation.The weight of valve element is by high-precision
Rolling guide is supported with guide post, and during motion, its frictional force is minimum, it is ensured that valve core movement is sensitive, responding fast, and it is little to wear and tear,
Long service life.
Clearance type regulating valve is also included for detecting the first displacement transducer 11 of piston rod displacement and/or for detecting valve
The second displacement sensor 12 of 6 displacement of core.Further, the first displacement transducer 11 be installed on 10 tail end of servo-cylinder and with work
Stopper rod connects, and the first displacement transducer 11 is outside to install protection cylinder, and protection cylinder can reduce shadow of the medium to displacement transducer one
Ring, life-span and the precision of displacement transducer one can be effectively increased.12 one end of second displacement sensor is connected with 6 ball pivot of valve element, the
Two displacement transducers, 12 other end is installed in the displacement sensor bracket on inner shell.Displacement transducer is sensed for straight-line displacement
Device, linear displacement transducer kinematic axiss one end is connected with valve element 6, and the motion of valve element 6 drives linear displacement transducer axis of motion,
The transmission of moving displacement is realized by sensor body, when valve needs pressure to adjust, central control room is according to displacement transducer
The position signalling that beams back, after calculating the aperture of valve needs, retransmits a signal to servo-cylinder, and servo-cylinder carries movable valve plug
Designated movement is done, so as to realize the pressure adjusting function of valve.
Packing being filled between displacement sensor bracket and second displacement sensor 12 and is connected with securing member tightens,
So which is also stablized in the environment of sharp pounding, reliably work.Displacement transducer accurately can quickly provide the stroke of valve
Positional information, realizes adjusting predetermined function.When the first displacement transducer 11 and second displacement sensor 12 is installed simultaneously, i.e.,
In the case of so that one of displacement transducer is failed, the reaction of stroke is nor affected on, the function with double insurance.
As shown in figure 5, trouserss adopt combinative structure.Trouserss 13 include trouserss shell 131, trouserss matrix 132
With trouserss fixed block 133, trouserss matrix 132 is connected with procapsid 1, and during valve closing, which bears medium active force.Rectification
Cover shell 131 is covered on trouserss matrix 132, and trouserss shell 131 is cone, the top rounding of trouserss shell 131.Whole
Stream cover shell 131 ensures the cleanliness in flow field, while alleviating the weight of trouserss 13, has some equal on trouserss shell 131
Weighing apparatus hole, to mitigate medium to itself impact impact, reduces the generation of noise.Trouserss 13 are installed by trouserss fixed block 133
On inner shell, it is easy to dismounting and the installation of trouserss 13.
The operation principle of the present invention is：Servo-cylinder 10 on middle housing 2 carries movable valve plug 6 along media flow axis
Reciprocating, the change of flow of media area is realized by the reciprocating motion of valve element 6 and the change in 4 cleanliness type face of adjustment type face
Change, so as to the change of flow, pressure reduction is realized, realize regulatory function.Guide post 7 wherein on valve seat 5 is realized valve element 6 and is transported
Guide function when dynamic.Rail brackets 9 on middle housing 2 is maintained static, and line slideway 8 is on rail brackets 9.
The slide block for being matched with guide rail on valve element 6 is slided on rolling guide when valve element 6 moves, and plays support work(to valve element
Can, problem is pulled in sagging abrasion when solving valve core movement.
In the present invention, valve element is slided on line slideway and realizes valve element guide function, and piston rod carries movable valve plug side-to-side movement,
Power transmission function being achieved, is oriented to sagging abrasion when valve core movement is solved with power transmission function and pulls problem, improves regulation essence
Degree；Valve element axially loaded is balance type structure, is affected very little by pressure medium during regulation, and valve core movement is sensitive, response
Fast, and wear and tear little, life-span length, effectively achieve the pressure adjusting function of valve.
Degree of regulation height of the present invention, frictional force is little, and motion is flexible, responding fast, and flow field characteristic is good, long service life, dimension
Shield low cost.Present invention is particularly suitable for be particularly on large-scale pipeline on aerospace industry testing stand being used for flow, pressure, temperature etc.
Adjust.
Certainly, the present invention can also have other numerous embodiments, in the case of without departing substantially from present invention spirit and its essence,
Those of ordinary skill in the art can make various corresponding changes according to the present invention and deform, but these corresponding changes and change
Shape should all belong to the protection domain of appended claims of the invention.
Claims (10)
1. clearance type regulating valve, it is characterised in that:Including valve housing, valve seat (5), valve element (6), guide post (7), line slideway
(8), servo-cylinder (10) and trouserss (13), the valve housing includes inner shell and shell, is formed between the inner shell and shell
Medium runner, described trouserss (13) are arranged on inside the shell, valve seat (5) position installed in the end of inner shell front end, described valve seat (5)
Rear end in shell；
Line slideway (8) and servo-cylinder (10) are in inner shell, and valve element (6) are by valve seat (5)
Guide post (7) be connected with the piston rod of servo-cylinder (10), valve element (6) by line slideway (8) support, valve element (6) with
Line slideway (8) is slidably matched, and has sealing auxiliary structure between valve element (6) and valve seat (5).
2. clearance type regulating valve according to claim 1, it is characterised in that：Also include for detecting the of piston rod displacement
One displacement transducer (11) and/or the second displacement sensor (12) for detecting valve element (6) displacement.
3. clearance type regulating valve according to claim 2, it is characterised in that：First displacement transducer (11) are installed on
Servo-cylinder (10) tail end is simultaneously connected with piston rod；Second displacement sensor (12) one end is connected with valve element (6) ball pivot, the
Two displacement transducers (12) other end is installed in the displacement sensor bracket on inner shell.
4. clearance type regulating valve according to claim 1, it is characterised in that：The sealing auxiliary structure is included on valve element (6)
The hard alloy sealing surface of built-up welding, and the hard alloy sealing surface of the upper built-up welding of valve seat (5).
5. clearance type regulating valve according to claim 1, it is characterised in that：The valve housing include procapsid (1), in
Housing (2) and back casing (3), the two ends of middle housing (2) are connected with procapsid (1) and back casing (3) respectively, the fore shell
In body (1) and the internal layer that middle housing (2) is inside and outside double-layer shell structure, the internal layer of procapsid (1) and middle housing (2) are constituted
Shell, the outer layer of procapsid (1), the outer layer of middle housing (2) and back casing (3) constitute shell, and described trouserss (13) install
In the end of procapsid (1) front end, described valve seat (5) are interior installed in back casing (3), line slideway (8) and servo-cylinder
(10) in middle housing (2).
6. clearance type regulating valve according to claim 1 or 5, it is characterised in that：The inwall at the shell rear portion has regulation
The inwall at type face shell rear portion has adjustment type face (4).
7. clearance type regulating valve according to claim 1, it is characterised in that：Described trouserss (13) include trouserss shell
(131) and trouserss matrix (132), the end airtight connection of trouserss matrix (132) and inner shell, the trouserss shell
(131) cover on trouserss matrix (132), described trouserss shell (131) are cone, the top of trouserss shell (131)
Rounding.
8. clearance type regulating valve according to claim 7, it is characterised in that：Have on trouserss shell (131) some
Balancing hole.
9. clearance type regulating valve according to claim 3, it is characterised in that：Line slideway (8) have two, and two straight
Line guide rail (8) is symmetrical arranged with regard to the middle vertical plane of valve element (6).
10. the clearance type regulating valve according to claim 1 or 3, it is characterised in that：Line slideway (8) are led for rolling
Rail, the slide block of the rolling guide is affixed with valve element (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611148405.5A CN106439046A (en) | 2016-12-13 | 2016-12-13 | Gap adjusting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611148405.5A CN106439046A (en) | 2016-12-13 | 2016-12-13 | Gap adjusting valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106439046A true CN106439046A (en) | 2017-02-22 |
Family
ID=58216513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611148405.5A Pending CN106439046A (en) | 2016-12-13 | 2016-12-13 | Gap adjusting valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106439046A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107701739A (en) * | 2017-11-20 | 2018-02-16 | 北京航天动力研究所 | A kind of multilayer complex casing and housing unit |
| CN108317260A (en) * | 2018-04-03 | 2018-07-24 | 成都乘风阀门有限责任公司 | A kind of heavy caliber quick-acting valve |
| CN108684235A (en) * | 2017-03-29 | 2018-10-23 | 株式会社久保田 | Intercut formula working rig |
| CN112696550A (en) * | 2020-12-28 | 2021-04-23 | 中国航空工业集团公司沈阳空气动力研究所 | Diffusion rectification flow equalization structure |
| CN115234659A (en) * | 2022-09-19 | 2022-10-25 | 中国航空工业集团公司沈阳空气动力研究所 | Circular seam type pressure regulating valve for conventional hypersonic wind tunnel |
| RU221100U1 (en) * | 2023-07-06 | 2023-10-18 | Акционерное общество "Инжиниринговая компания "АЭМ-технологии" (АО "АЭМ-технологии") | Control valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2610383B1 (en) * | 1987-01-30 | 1989-06-23 | Neu Ets | GAS FLOW CONTROL VALVE AND ITS APPLICATION TO ADJUST THE FLOW OF A TURBINE |
| CN201318489Y (en) * | 2008-12-16 | 2009-09-30 | 成都乘风阀门有限责任公司 | Slit type annular hydraulic regulating valve |
| CN201496562U (en) * | 2009-09-10 | 2010-06-02 | 江南阀门有限公司 | Built-in oil cylinder structure of piston type axial-flow valve |
| CN203009872U (en) * | 2012-11-28 | 2013-06-19 | 中国空气动力研究与发展中心高速空气动力研究所 | Annular gap type pressure adjusting valve for transonic-supersonic wind tunnel |
| CN104405904A (en) * | 2014-10-17 | 2015-03-11 | 北京航天益森风洞工程技术有限公司 | Large-caliber pressure regulating valve |
| CN204716993U (en) * | 2015-06-25 | 2015-10-21 | 上海欧特莱阀门机械有限公司 | A kind of sand and mud proof axial flow control valve |
| CN206347112U (en) * | 2016-12-13 | 2017-07-21 | 成都乘风阀门有限责任公司 | Clearance type regulating valve |
-
2016
- 2016-12-13 CN CN201611148405.5A patent/CN106439046A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2610383B1 (en) * | 1987-01-30 | 1989-06-23 | Neu Ets | GAS FLOW CONTROL VALVE AND ITS APPLICATION TO ADJUST THE FLOW OF A TURBINE |
| CN201318489Y (en) * | 2008-12-16 | 2009-09-30 | 成都乘风阀门有限责任公司 | Slit type annular hydraulic regulating valve |
| CN201496562U (en) * | 2009-09-10 | 2010-06-02 | 江南阀门有限公司 | Built-in oil cylinder structure of piston type axial-flow valve |
| CN203009872U (en) * | 2012-11-28 | 2013-06-19 | 中国空气动力研究与发展中心高速空气动力研究所 | Annular gap type pressure adjusting valve for transonic-supersonic wind tunnel |
| CN104405904A (en) * | 2014-10-17 | 2015-03-11 | 北京航天益森风洞工程技术有限公司 | Large-caliber pressure regulating valve |
| CN204716993U (en) * | 2015-06-25 | 2015-10-21 | 上海欧特莱阀门机械有限公司 | A kind of sand and mud proof axial flow control valve |
| CN206347112U (en) * | 2016-12-13 | 2017-07-21 | 成都乘风阀门有限责任公司 | Clearance type regulating valve |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108684235A (en) * | 2017-03-29 | 2018-10-23 | 株式会社久保田 | Intercut formula working rig |
| CN107701739A (en) * | 2017-11-20 | 2018-02-16 | 北京航天动力研究所 | A kind of multilayer complex casing and housing unit |
| CN107701739B (en) * | 2017-11-20 | 2024-04-09 | 北京航天动力研究所 | Multilayer complex shell and shell assembly |
| CN108317260A (en) * | 2018-04-03 | 2018-07-24 | 成都乘风阀门有限责任公司 | A kind of heavy caliber quick-acting valve |
| CN112696550A (en) * | 2020-12-28 | 2021-04-23 | 中国航空工业集团公司沈阳空气动力研究所 | Diffusion rectification flow equalization structure |
| CN115234659A (en) * | 2022-09-19 | 2022-10-25 | 中国航空工业集团公司沈阳空气动力研究所 | Circular seam type pressure regulating valve for conventional hypersonic wind tunnel |
| RU221100U1 (en) * | 2023-07-06 | 2023-10-18 | Акционерное общество "Инжиниринговая компания "АЭМ-технологии" (АО "АЭМ-технологии") | Control valve |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20170222 |