CN105240576A - Industrial bionic valve type high-frequency response unidirectional-flow switch valve - Google Patents
Industrial bionic valve type high-frequency response unidirectional-flow switch valve Download PDFInfo
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- CN105240576A CN105240576A CN201510577520.3A CN201510577520A CN105240576A CN 105240576 A CN105240576 A CN 105240576A CN 201510577520 A CN201510577520 A CN 201510577520A CN 105240576 A CN105240576 A CN 105240576A
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- ring plate
- valve
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- frequency response
- film
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- 230000004044 response Effects 0.000 title claims abstract description 34
- 239000011664 nicotinic acid Substances 0.000 title abstract 5
- 239000012530 fluid Substances 0.000 claims description 22
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 239000007788 liquid Substances 0.000 abstract description 36
- 239000012528 membrane Substances 0.000 abstract description 10
- 238000013016 damping Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000002360 explosive Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000001015 abdomen Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010835 comparative analysis Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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
- F16K15/00—Check valves
- F16K15/14—Check valves with flexible valve members
- F16K15/16—Check valves with flexible valve members with tongue-shaped laminae
Abstract
The invention discloses an industrial bionic valve type high-frequency response unidirectional-flow switch valve. The industrial bionic valve type high-frequency response unidirectional-flow switch valve comprises at least two membrane flaps capable of being opened and closed relatively. Gaps between the membrane flaps are channels allowing liquid to flow through. The membrane flaps are mutually combined to form dome-shaped structures or pyramid-shaped structures. The orientation of the tops of the dome-shaped structures or the tops of the pyramid-shaped structures is the same as the flow direction of the liquid. Or the industrial bionic valve type high-frequency response unidirectional-flow switch valve comprises an inner ring slice and an outer ring slice. The outer ring slice is placed on the inner ring slice in a sleeving mode. A gap between the outer ring slice and the inner ring slice is a channel allowing the liquid to flow through. The inner ring slice is mutually combined with the outer ring slice to form an arc shaped structure extending in the circumferential direction. The orientation of the top of the arc shaped structure is the same as the flow direction of the liquid. The industrial bionic valve type high-frequency response unidirectional-flow switch valve is high in response speed.
Description
Technical field
The present invention relates to a kind of industrial bionical valve high frequency response one-way flow and open and close valve.
Background technique
One-way valve is as the basic element of character, have a wide range of applications in hydraulic system, in the research in recent years about various novel hydraulic system, hydraulic system is generally operational in tens in the frequency range of hundreds of hertz, and system reaches so high frequency of okperation, far beyond the frequency response requirement of former hydraulic system for one-way valve, like this, in novel hydraulic system, the speed of response of one-way valve cannot meet the action request of hydraulic system, and the performance of whole hydraulic system will be made to reduce.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of industrial bionical valve high frequency response one-way flow of fast response time to open and close valve.
For solving the problems of the technologies described above, industrial bionical valve high frequency response one-way flow provided by the invention opens and closes valve, it comprises at least two can the film lobe of folding relatively, gap between film lobe is the passage for fluid circulation, film lobe is combined to form dome-shaped structure or pyramid-shaped structures each other, and the top of dome-shaped structure or pyramid-shaped structures is towards consistent with fluid flow direction; Or
It comprises ring plate and an outer ring plate in one, outer ring plate is nested with in interior ring plate, gap between outer ring plate and interior ring plate is the passage for fluid circulation, and interior ring plate and outer ring plate are combined to form the arch structure that hoop extends each other, and the top of arch structure is towards consistent with fluid flow direction.
As preferably, described film lobe is two, and the top margin of two film lobes is mutually against the dome-shaped structure of formation.
As preferably, the top margin of two film lobes is provided with the lip limit extended to fluid flow direction.
As preferably, described film lobe is three, and the side of three film lobes is successively against formation pyramid-shaped structures.
As preferably, the side of three film lobes is provided with the lip limit extended to fluid flow direction.
As preferably, each film lobe is all fixed on a film lobe seat, and film lobe by one, elastically-deformable joint can occur with corresponding film lobe seat and be connected.
As preferably, described interior ring plate is fixed on an internal fixtion ring, and interior ring plate by one, elastically-deformable joint can occur with internal fixtion ring and be connected; Described outer ring plate is fixed on an extenal fixation ring, and outer ring plate by one, elastically-deformable joint can occur with extenal fixation ring and be connected.
As preferably, described joint is provided with tension force groove.
As preferably, described joint is provided with elastic folds.
As preferably, be provided with a support frame in the arch structure that the hoop that interior ring plate and outer ring plate are combined to form each other extends, support frame is the arch structure that hoop extends, and support frame is covered with through hole.
After adopting above structure, the present invention compared with prior art, has following advantage:
When liquid forward flows through this one-way valve, film lobe is subject to the positive pressure of liquid and opens, the gap flow through for liquid is formed between film lobe, because film lobe is combined to form dome-shaped structure or pyramid-shaped structures mutually, making just to flow to liquid can the backpressure that is subject to of very effective decomposition film lobe back when opening film lobe, so film lobe can be opened rapidly with less positive pressure difference, make the fast response time of this one-way valve; And when liquid reverse flow, liquid makes film lobe press each other, because film lobe is combined to form dome-shaped structure or pyramid-shaped structures mutually, film lobe can the backpressure of effective decomposed liq, make this one-way valve effectively can resist the pressure that reverse direction flow liquid is applied to film lobe back, be out of shape to prevent film lobe.
Accompanying drawing explanation
Fig. 1 is film lobe side view of the present invention when being two;
Fig. 2 is film lobe explosive view of the present invention when being two;
Fig. 3 is film lobe front view of the present invention when being two;
Fig. 4 is that A-A in Fig. 3 is to sectional view;
Fig. 5 is film lobe side view of the present invention when being three;
Fig. 6 is film lobe explosive view of the present invention when being three;
Fig. 7 is film lobe front view of the present invention when being three;
Fig. 8 is that B-B in Fig. 7 is to sectional view;
The explosive view of another embodiment of the present invention that Fig. 9 is film lobe when being two;
The sectional view of another embodiment of the present invention that Figure 10 is film lobe when being two;
Figure 11 is the structural representation of film lobe when opening;
Figure 12 is the structural representation of film lobe when opening;
Figure 13 is the structural representation of film lobe when opening;
Figure 14 is that the C-C of Figure 13 is to sectional view;
Figure 15 is the action view that film lobe opens and closes;
Figure 16 is the operating diagram of current industrial unidirectional keying valve.
Wherein, 1, film lobe; 2, lip limit; 3, film lobe seat; 4, tension force groove; 5, support frame; 501, through hole; 6, interior ring plate; 601, internal fixtion ring; 7, outer ring plate; 701, extenal fixation ring.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in more detail.
The industrial bionical valve high frequency response one-way flow of the present invention open and close valve comprise at least two can the film lobe 1 of folding relatively, gap between film lobe 1 is the passage for fluid circulation, film lobe 1 is combined to form dome-shaped structure or pyramid-shaped structures each other, and the top of dome-shaped structure or pyramid-shaped structures is towards consistent with fluid flow direction.
Shown in Fig. 1 ~ Fig. 4, when film lobe 1 is two, film lobe 1 is roughly leaf lobe shape, and the top margin of two film lobes 1 is mutually against the dome-shaped structure of formation.
Shown in Fig. 5 ~ Fig. 8, when film lobe 1 is three, film lobe 1 is roughly triangle, and the side of three film lobes 1 is successively against formation pyramid-shaped structures.
Certainly, described film lobe also can be four even more, the side of all film lobes is successively against formation pyramid-shaped structures.
Each film lobe 1 is all fixed on a film lobe seat 3, film lobe seat 3 is connected successively and encloses ring structure, this ring structure has an opening, during liquid forward flow, liquid first flows through this opening, and then liquid applies pressure to the belly of film lobe 1, and film lobe 1 is opened, form gap between film lobe 1, liquid flows through from this gap.
Film lobe 1 is connected by a junction with corresponding film lobe seat 3, joint is provided with tension force groove 4 or elastic folds, tension force groove 4 is divided into spill tension force groove and convex tension force groove, when film lobe is subject to the pressure of the liquid of forward flow, tension force groove or elastic folds generation resiliently deformable, to provide amount of deformation to the folding of film lobe, to make film lobe can folding.
Traditional one-way valve, when its film lobe is opened, its deformed region must occur on film lobe, this just determines film lobe can not use hard material, so traditional one-way valve is doomed to use on high voltage control pump, and owing to arranging the such Flexible Reset structure of tension force groove in the present invention, so film lobe can adopt hard material completely, to ensure that this one-way valve normally can work in high pressure liquid stream medium.
When film lobe 1 is two, the top margin of two film lobes 1 is provided with the lip limit 2 extended to fluid flow direction, when film lobe 1 is more than three or three, the side of all film lobes 1 is provided with the lip limit 2 extended to fluid flow direction, that is lip limit 2 extends along the postive direction of flow of fluid, lip limit on the top margin leant of film lobe or side offsets, lip limit structure is conducive to reducing because film lobe stress deformation, or the dislocation of adjacent membranes lobe that causes such as film lobe foozle and the reverse seepage occurred, or film lobe offsets unbalance stress and the structure collapses caused, thus the disabler of one-way valve can be avoided, this lip limit also has another advantage, when being exactly liquid one-way flowing, not only can effectively avoid ' sharp ' seamed edge to the generation of the flow-disturbing turbulent flow of liquid, but also is provided with and avoids bringing out of turbulent flow thus and " steam bubble " this additional defects that may cause.
Shown in Fig. 9, Figure 10, now industrial bionical valve high frequency response one-way flow keying valve comprises ring plate 6 and an outer ring plate 7 in one, outer ring plate 7 is nested with in interior ring plate 6, gap between outer ring plate 7 and interior ring plate 6 is the passage for fluid circulation, interior ring plate 6 and outer ring plate 7 are combined to form the arch structure that hoop extends each other, and the top of arch structure is towards consistent with fluid flow direction.
Described interior ring plate 6 is fixed on an internal fixtion ring 601, and interior ring plate 6 by one, elastically-deformable joint can occur with internal fixtion ring 601 and be connected; Described outer ring plate 7 is fixed on an extenal fixation ring 701, and outer ring plate 7 by one, elastically-deformable joint can occur with extenal fixation ring 701 and be connected; Joint is provided with tension force groove or elastic folds, when interior ring plate 6 and outer ring plate 7 are subject to the pressure of the liquid of forward flow, tension force groove or elastic folds generation resiliently deformable, provide amount of deformation with internal ring plate with the relative folding of outer ring plate, to make interior ring plate can relative folding with outer ring plate.
A support frame 5 is provided with in the arch structure that the hoop that interior ring plate 6 and outer ring plate 7 are combined to form each other extends, the arch structure that support frame 5 extends for hoop, support frame 5 may be used for supporting interior ring plate 6 and outer ring plate 7, can prevent the back of the internal ring plate 6 of the liquid of reverse flow and outer ring plate 7 from applying pressure and interior ring plate 6 and outer ring plate 7 are out of shape, thus the reverse direction flow anti-pressure ability of interior ring plate 6 and outer ring plate 7 can be ensured, support frame 5 is covered with through hole 501, liquid can flow through through hole 501.
Shown in Figure 11 ~ Figure 14, when film lobe is opened, the wedge angle of film lobe is separated from each other, and liquid flows through from gap between the wedge angle of film lobe.
As shown in Figure 15, when film lobe is opened, film lobe is transformed into open position by operating position, in the process, tension force groove generation elastic strain, film lobe rotates, the wedge angle of film lobe arcuately track moves, liquid flow direction and the open-shut direction of film lobe are a kind of almost vertical relations, liquid backpressure suffered when so just making film lobe open is less, film lobe is made to be easier to open and close, one-way flow of the present invention is made to open and close response valve frequency higher, and three horn structure of leaf film lobe, be more conducive to leaf lobe incision liquid, so the relative two leaf film lobes of three leaf film lobes are just provided with the open and shut characteristic of higher frequency response.
The high frequency response one-way flow of indication of the present invention opens and closes valve and refers to that the response frequency of one-way flow keying valve is greater than 50 hertz.
Current industrial unidirectional keying valve, mostly its flow direction opening and closing the liquid that direction all controls with it is consistent, and see Figure 16, when liquid flows upwards, ball valve moves, when downward liquid flow, ball valve moves down,
As shown in Figure 16, if valve ball is subject to: elastic force-kx, damping force
external periodic force (driving force) is the momentum surge pressure d (m of liquid herein
0υ)/dt, wherein d (m
0velocity component in υ)/dt formula refers to that flow rate of liquid is from υ
1to υ
2variable quantity, i.e. d υ=υ
2-υ
1, like this because fluid density is constant, then to the liquid quality m of spheroid effect
0constant, so d (m
0υ)/dt conversion can obtain d (m
0υ)/dt=m
0× d (υ
2-υ
1)/dt=m
0× (d υ
2/ dt-d υ
1/ dt), d υ is considered as the infinitely-great volume of exocoel
2/ dt=0, then in above formula the sectional area S of a common multiplication and division runner and degree of depth l, then can obtain
So valve ball is stressed be:
In formula, ρ is fluid density, and v is runner volume.
Make d υ
1/ dt=A
0cos (ω t), then (1) formula becomes: ρ vA
0cos (ω t)=Acos (ω t), if valve ball quality is m, then sets up stress balance equation by figure:
mx″+γx′+kx＝Acos(ωt)………………………(2)
Order
∵ β < ω
0underdamping state, its general solution is:
x(t)＝x
0(t)+x
1(t)＝A
0e
-βtcos(ω′t+α)+A
1cos(ωt+φ)…………(3)
Wherein
(3) relevant with amplitude in formula A
0e
-β twith A
1in, Section 1 is time attenuation, when valve mass m more high attenuation rate is also larger; Section 2 is frequency decay amount, and as driving frequency ω, more high amplitude is less.In tg φ, φ is the retardation angle of valve ball in addition, owing to working as ω > ω
0time valve ball direction of vibration will be tending towards the vibration mode contrary with liquid vibration direction, such valve ball cannot normally work, so industrial unidirectional keying valve operating range is generally at ω < ω
0in region, require that damping constant γ is enough little, guarantee that the retardation angle φ of valve ball is little, to ensure the high frequency fast response characteristic of its unidirectional keying valve.
By upper analysis, namely should require for quick-acting valve: the quality m 1. opening and closing body should be little, or k, m ratio should high (but the cracking pressure of valve just increases like this, this and Low pressure valve are opened and defined paradox, and this is the defect that traditional keying valve is the most fatal); 2. the structural design of quick-acting valve and the type of flow of liquid should make damping constant γ enough little (but γ value is in the flowing direction maximum, this be due to γ often direct ratio with
so just hinder the quick closedown of valve, this is again the defect that tradition opens and closes valve key).
" under the concise and to the point comparative analysis qualitatively of+γ x '+kx=Acos (ω t), this patent membrane flap type opens and closes the fast-response of valve to use (2) formula mx like this.First, when tradition opens and closes valve unlatching, flow rate of liquid is from υ
1become υ
2direction there occurs obvious change, and almost there is not any change to flow direction in the unlatching that membrane flap type opens and closes its valve of valve, so the mx " value is than the mx instantly opening and closing valve " that tradition opens and closes valve is worth much bigger, so just can equivalence think: the quality participating in the equivalent mobile valve body to liquid effects, the m value of its membrane flap type is little many more than traditional m value; Second point, flow of fluid opens and closes the damping constant γ of valve to membrane flap type, more much smaller than traditional damping constant γ, this be due to
minimum at the component of its normal direction.Be enough to illustrate that membrane flap type opens and closes valve and has very high fast frequency response characteristic based on above 2.
And by upper analysis, traditional keying valve is a kind of " plug flow valve ", and membrane flap type to open and close valve be a kind of " shutoff valve ", and can draw a more general control effects thus, " damming " is faster than " plug flow " control response speed.
Below only apply preferably example with regard to the present invention and made explanation, but can not be interpreted as it is limitations on claims, structure of the present invention can have other to change, and is not limited to said structure.In a word, all various changes done in the protection domain of independent claims of the present invention are all in protection scope of the present invention.
Claims (10)
1. an industrial bionical valve high frequency response one-way flow opens and closes valve, it is characterized in that, it comprises at least two can the film lobe (1) of folding relatively, gap between film lobe (1) is the passage for fluid circulation, film lobe (1) is combined to form dome-shaped structure or pyramid-shaped structures each other, and the top of dome-shaped structure or pyramid-shaped structures is towards consistent with fluid flow direction; Or
It comprises ring plate in (6) and an outer ring plate (7), outer ring plate (7) is nested with in interior ring plate (6), gap between outer ring plate (7) and interior ring plate (6) is the passage for fluid circulation, interior ring plate (6) and outer ring plate (7) are combined to form the arch structure that hoop extends each other, and the top of arch structure is towards consistent with fluid flow direction.
2. industrial bionical valve high frequency response one-way flow according to claim 1 opens and closes valve, and it is characterized in that, described film lobe (1) is two, and the top margin of two film lobes (1) is mutually against the dome-shaped structure of formation.
3. industrial bionical valve high frequency response one-way flow according to claim 2 opens and closes valve, it is characterized in that, the top margin of two film lobes (1) is provided with the lip limit (2) extended to fluid flow direction.
4. industrial bionical valve high frequency response one-way flow according to claim 1 opens and closes valve, and it is characterized in that, described film lobe (1) is three, and the side of three film lobes (1) is successively against formation pyramid-shaped structures.
5. industrial bionical valve high frequency response one-way flow according to claim 4 opens and closes valve, it is characterized in that, the side of three film lobes (1) is provided with the lip limit (2) extended to fluid flow direction.
6. industrial bionical valve high frequency response one-way flow according to claim 1 opens and closes valve, it is characterized in that, each film lobe (1) is all fixed on a film lobe seat (3), and film lobe (1) by one, elastically-deformable joint can occur with corresponding film lobe seat (3) and be connected.
7. industrial bionical valve high frequency response one-way flow according to claim 1 opens and closes valve, it is characterized in that, described interior ring plate (6) is fixed on an internal fixtion ring (601), and interior ring plate (6) by one, elastically-deformable joint can occur with internal fixtion ring (601) and be connected; Described outer ring plate (7) is fixed on an extenal fixation ring (701), and outer ring plate (7) by one, elastically-deformable joint can occur with extenal fixation ring (701) and be connected.
8. the industrial bionical valve high frequency response one-way flow according to claim 6 or 7 opens and closes valve, it is characterized in that, described joint is provided with tension force groove (4).
9. the industrial bionical valve high frequency response one-way flow according to claim 6 or 7 opens and closes valve, it is characterized in that, described joint is provided with elastic folds.
10. industrial bionical valve high frequency response one-way flow according to claim 1 opens and closes valve, it is characterized in that, a support frame (5) is provided with in the arch structure that the hoop that interior ring plate (6) and outer ring plate (7) are combined to form each other extends, the arch structure that support frame (5) extends for hoop, support frame (5) are covered with through hole (501).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510577520.3A CN105240576B (en) | 2015-09-11 | 2015-09-11 | Industrial bionical valve high frequency response one-way flow opens and closes valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510577520.3A CN105240576B (en) | 2015-09-11 | 2015-09-11 | Industrial bionical valve high frequency response one-way flow opens and closes valve |
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| Publication Number | Publication Date |
|---|---|
| CN105240576A true CN105240576A (en) | 2016-01-13 |
| CN105240576B CN105240576B (en) | 2018-03-06 |
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ID=55038343
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510577520.3A Active CN105240576B (en) | 2015-09-11 | 2015-09-11 | Industrial bionical valve high frequency response one-way flow opens and closes valve |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106184673A (en) * | 2016-07-11 | 2016-12-07 | 尹钢 | Peritoneum row pressure formula high-speed and low-noise ship power propulsion plant and arrangement thereof |
| CN106964052A (en) * | 2017-04-05 | 2017-07-21 | 范士洁 | A kind of anti-clogging wound irrigation pipe and its purging method |
| CN108930325A (en) * | 2017-05-23 | 2018-12-04 | 株式会社普利司通 | Check-valves, drain trap and siphon drainge system |
| CN110947092A (en) * | 2019-10-22 | 2020-04-03 | 浙江省北大信息技术高等研究院 | One-way valve and medical catheter with same |
| CN112283389A (en) * | 2020-09-30 | 2021-01-29 | 哈尔滨工业大学 | Bionic soft valve based on two-way SMA spring |
| CN115076409A (en) * | 2022-08-11 | 2022-09-20 | 中国空气动力研究与发展中心设备设计与测试技术研究所 | Multi-petal type isolation water valve |
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| US5971024A (en) * | 1999-01-20 | 1999-10-26 | Penny; William H. | Method and apparatus for controlling fluid flow |
| CN2578635Y (en) * | 2002-10-06 | 2003-10-08 | 石景东 | Check valve with flexible outward segment |
| CN1668867A (en) * | 2002-05-10 | 2005-09-14 | 莫托塔西那里股份有限公司 | Reed valve assembly |
| CN102392906A (en) * | 2011-11-17 | 2012-03-28 | 黄山市必利精密塑业科技有限公司 | One-way valve |
| CN204438869U (en) * | 2014-12-14 | 2015-07-01 | 天津芯之铠热管理技术研发有限公司 | A kind of radiator check valve |
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|---|---|---|---|---|
| CN86200228U (en) * | 1986-01-15 | 1987-06-03 | 赵兴龙 | One-way valve |
| US5971024A (en) * | 1999-01-20 | 1999-10-26 | Penny; William H. | Method and apparatus for controlling fluid flow |
| CN1668867A (en) * | 2002-05-10 | 2005-09-14 | 莫托塔西那里股份有限公司 | Reed valve assembly |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106184673A (en) * | 2016-07-11 | 2016-12-07 | 尹钢 | Peritoneum row pressure formula high-speed and low-noise ship power propulsion plant and arrangement thereof |
| CN106964052A (en) * | 2017-04-05 | 2017-07-21 | 范士洁 | A kind of anti-clogging wound irrigation pipe and its purging method |
| CN108930325A (en) * | 2017-05-23 | 2018-12-04 | 株式会社普利司通 | Check-valves, drain trap and siphon drainge system |
| JP2018197555A (en) * | 2017-05-23 | 2018-12-13 | 株式会社ブリヂストン | Check valve, drain trap and siphon drainage system |
| CN110947092A (en) * | 2019-10-22 | 2020-04-03 | 浙江省北大信息技术高等研究院 | One-way valve and medical catheter with same |
| CN112283389A (en) * | 2020-09-30 | 2021-01-29 | 哈尔滨工业大学 | Bionic soft valve based on two-way SMA spring |
| CN112283389B (en) * | 2020-09-30 | 2022-11-01 | 哈尔滨工业大学 | Bionic soft valve based on two-way SMA spring |
| CN115076409A (en) * | 2022-08-11 | 2022-09-20 | 中国空气动力研究与发展中心设备设计与测试技术研究所 | Multi-petal type isolation water valve |
| CN115076409B (en) * | 2022-08-11 | 2022-11-08 | 中国空气动力研究与发展中心设备设计与测试技术研究所 | Multi-petal type isolation water valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105240576B (en) | 2018-03-06 |
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