CN105508209B - Big flow bluff body Valveless piezoelectric pump - Google Patents
Big flow bluff body Valveless piezoelectric pump Download PDFInfo
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- CN105508209B CN105508209B CN201610124493.9A CN201610124493A CN105508209B CN 105508209 B CN105508209 B CN 105508209B CN 201610124493 A CN201610124493 A CN 201610124493A CN 105508209 B CN105508209 B CN 105508209B
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- bluff body
- fluid
- pump
- flow
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/08—Machines, pumps, or pumping installations having flexible working members having tubular flexible members
- F04B43/09—Pumps having electric drive
- F04B43/095—Piezo-electric drive
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
- F04B53/162—Adaptations of cylinders
Abstract
Multiple bluff body groups are circumferentially evenly equipped with big flow Valveless piezoelectric pump, its pump seat, the fluid outlet passage along pump seat side wall with insertion pump seat length direction has a fluid hole on pump seat, and fluid hole is communicated with fluid outlet passage；Also include flow splitter, on the flow splitter mounting groove of pump chamber, one week of the side wall of flow splitter is provided with side inlet opening；Flow splitter upper surface is provided with inlet opening at least one；Pump chamber upper surface is provided with least one inlet opening, and identical with the quantity of inlet opening on flow splitter, position matches.Present invention improves over the structure of pump seat, flow splitter is added, large flow fluid output and the mixing of multiple fluid can be achieved, the application field of Valveless piezoelectric pump is expanded.
Description
Technical field
The invention belongs to fluid machinery technical field, it is related to a kind of Valveless piezoelectric pump, specifically, is related to a kind of big flow
Bluff body Valveless piezoelectric pump.
Background technology
Piezoelectric pump is to be deformed piezoelectric vibrator using the inverse piezoelectric effect of piezoelectric ceramics, then produces pump chamber by deformation
Volume change realizes fluid output or produces fluctuation to transmit liquid using piezoelectric vibrator.Can be by according to valve body is whether there is in pump chamber
Piezoelectric pump, which is divided into, valve piezoelectric pump and Valveless piezoelectric pump.
Bluff body Valveless piezoelectric pump realizes pump flow by the forward and reverse flow resistance difference for the bluff body being arranged on pump frame
The function of body.The fluid intake of traditional Valveless piezoelectric pump is connected with outlet, is passed in and out between entrance and exit for fluid
Pipeline, special shape, pump chamber structure by fluid turnover pipeline or sets choke apparatus to form forward and reverse choked flow in pump chamber
Difference, the difference in flow for causing fluid to be flowed in and out along same passage realizes the effect of " valve ".
Traditional structure limits the application of the flow and Valveless piezoelectric pump of fluid in Valveless piezoelectric pump.Due to entering for fluid
Going out mostly is completed by a fluid access way, and a kind of fluid can be only passed through every time, and the size of passage limits fluid
Flow；Also the turnover for the Valveless piezoelectric pump fluid having is completed by a plurality of fluid passage, for example, Patent No.
A kind of bluff body Valveless piezoelectric pump disclosed in 201210396143.X, the side of pump seat is provided with three fluid access ways,
The effect of pumping lot of trace fluid, but the influence of be obstructed flow profile or arrangement can be completed, fluid flow is small, and mixing is inadequate
Uniformly.The output of larger pump discharge to realize, the shape of bluff body, arrangement are particularly significant, traditional Valveless piezoelectric pump
It is certain that fluid, which enters outgoing direction, and in order to obtain preferable effect, the direction that bluff body is typically passed in and out along fluid is single-row or many
Row arranged in parallel, due to it cannot be guaranteed that each bluff body is each perpendicular to the direction that fluid is flowed in and out, it is impossible to maximum hair
Wave drainage, the resistance flowing effect of bluff body.
The content of the invention
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a kind of big flow of achievable multiple fluid mixing
Valveless piezoelectric pump.
The technical scheme is that：Big flow bluff body Valveless piezoelectric pump, including pump seat, pump chamber, threaded cap, threaded cap
Piezoelectric vibrator is provided between pump chamber；Pump seat is cylinder；The fluid that pump seat side wall has its length direction of insertion flows out
Passage；
Multiple bluff body groups are circumferentially evenly equipped with choked flow housing, each bluff body group includes a preceding conductor；On pump seat
With a fluid hole extended downwardly along pump seat short transverse, fluid hole is communicated with fluid outlet passage；
Also include flow splitter, including upper surface and side wall, side wall is provided with least one side inlet opening, flow splitter upper end
Face is provided with inlet opening at least one；
Pump chamber is a cavity body, and the upper and lower end face with insertion, pump chamber is sleeved on pump seat, and bottom is upper mounted in pump frame
On end face, pump chamber inwall has mounting groove, and flow splitter is at mounting groove, and the cell wall and flow splitter upper surface outer wall of mounting groove are tight
Close fit；Pump chamber upper surface is provided with least one inlet opening, and identical with the quantity of inlet opening on flow splitter, position matches.
Preferably：Bluff body group also includes at least one main bluff body, is stream by the direction of side inlet opening to fluid hole
Body inflow direction, preceding conductor and main bluff body are arranged in a linear along the direction that fluid is flowed into；With perpendicular to fluid radial inflow side
To plane on the basis of, the projected area of preceding conductor on this plane be less than the projected area of main bluff body on this plane.
Further：Preceding conductor has drainage face and choked flow face, and drainage is flowed into facing to fluid inflow direction, fluid
When, play drainage；Choked flow is facing to fluid hole；When fluid flows out, play choked flow；Drainage is less than resistance in face of the resistance of fluid
Resistance of the stream interface to fluid；Main bluff body includes drainage face and choked flow face, and its drainage is facing to the choked flow face of preceding conductor, its choked flow
Facing to fluid hole；Main bluff body choked flow is more than the resistance that preceding conductor drainage faces fluid in face of the resistance of fluid.
Further：Bluff body group includes a preceding conductor and two main bluff bodys, for main bluff body I and main bluff body
II；On the basis of the plane perpendicular to fluid radial inflow direction, the projected area of preceding conductor on this plane is less than main choked flow
The projected areas of body I on this plane；It is flat at this that the projected areas of main bluff body I on this plane are less than or equal to main bluff body II
Projected area on face.In addition, the structure of bluff body group is also designed to preceding three main bluff bodys of conductor or more
Multiple main bluff bodys etc..
Further：Preceding conductor and the combination that main bluff body is the various sizes of bluff body of same shape；Or not similar shape
The combination of shape bluff body.For example：Preceding conductor and main bluff body are all hemisphere, and hemispheroidal sphere is towards fluid inflow side
To, the direction that plane flows out towards fluid, but diameter of the diameter more than preceding conductor of main bluff body；Can also be that preceding conductor is
Hemisphere, main bluff body is cuboid, the direction that hemispheroidal sphere is flowed into towards fluid, the side that plane flows out towards fluid
To the length of side of main bluff body is more than the diameter of preceding conductor.In addition, preceding conductor and main bluff body can also be using hemisphere, half
The combination of the shape bluff body such as spherical shell, cuboid, triangular prism, semicolumn, obform body.
Preferably：Pump seat includes pump frame and choked flow housing, and bluff body group is arranged in choked flow housing, along pump frame side
Wall has the fluid outlet passage of its length direction of insertion；Have one to be extended downwardly along bluff body seat short transverse in choked flow housing
Fluid hole, fluid hole communicates with fluid outlet passage.
Preferably：The aperture of fluid hole is more than the aperture of side inlet opening.
The beneficial effects of the invention are as follows：
(1) compared with traditional Valveless piezoelectric pump, flow splitter is added, multiple side inlet openings that fluid can be on flow splitter
Enter simultaneously, increase the flow of fluid, large flow fluid turnover can be achieved；The space of pump body is taken full advantage of, makes valveless
Piezoelectric pump is compared with the more compact structure of " pipeline valve " Valveless piezoelectric pump, and volume is smaller.
(2) change the structure of traditional pump seat and then change the pattern that traditional Valveless piezoelectric pump fluid passes in and out pump chamber, pass
The Valveless piezoelectric pump fluid turnover pump chamber of system can be only led in the fluid access way by being arranged on pump chamber, piezoelectric pump
Enter a kind of fluid or several micro fluids.And it is that, by inlet opening, outflow pump chamber is by setting that the fluid of the application, which flows into pump chamber,
The fluid outlet passage on pump seat is put, inlet opening can design multiple, and each inlet opening can flow into identical or different liquid, if
For different fluids, it can make different fluids under piezoelectric vibrator effect of vibration at flow splitter inner impact and stream multigroup resistance
Realization fully, is efficiently mixed in the presence of whirlpool is produced after fluid.In order to obtain large flow fluid outflow effect, fluid hole can
It is designed as multiple, and the aperture of fluid hole is more than the aperture of side inlet opening, to flow out fluid flow more than reflux fluid flow.
(3) multigroup bluff body group is devised, every group of bluff body group corresponds to the direction of a side inlet, it is ensured that every group of resistance
Fluid group is vertical with the direction of fluid inflow and outflow, obtains maximum drainage, resistance flowing effect；And according to head principle of stacking,
Anyway approximately it should increase to flow resistance difference with the quantity of bluff body group, it is thus possible to greatly improve the pump-conveying property of piezoelectric pump.
(4) application field of Valveless piezoelectric pump is expanded, the effect of traditional Valveless piezoelectric pump can only be realized simple
Fluid is pumped, or is only capable of realizing the immixture of micro fluid, because the big flow that a variety of different liquids can be achieved in the present invention is mixed
Close, it is multi-field available for Liquid Fertilizer mixing etc..
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
Fig. 2 is pump seat and bluff body group structural representation.
Fig. 3 is pump seat and bluff body group overlooking the structure diagram.
Fig. 4 is flow splitter structural representation.
Fig. 5 is flow splitter overlooking the structure diagram.
Fig. 6 is pump chamber structural representation.
Fig. 7 is pump chamber overlooking the structure diagram.
Fig. 8 is the pump seat of embodiment 2 and bluff body group overlooking the structure diagram.
Fig. 9 is the structural representation of embodiment 3.
Wherein：1- pump seats, 101- fluid outlet passages, 102- fluid holes, 2- flow splitter mounting grooves, the main bluff body II of 3-,
Conductor before 4- threaded caps, 5- piezoelectric vibrators, 6- bluff body groups, 601-, the main bluff bodys of 602-, 7- flow splitters, 701- sides inlet opening,
The upper inlet openings of 702-, 8- pump chambers, 801- inlet openings, 802- liquid conduits, the main bluff body I of 9-, 10- piezoelectric vibrator mounting grooves, 11-
Choked flow housing, 12- pump frames
Embodiment
The embodiment of the present invention is further detailed below in conjunction with accompanying drawing.
Embodiment 1
As shown in figure 1, big flow bluff body Valveless piezoelectric pump, the pump housing includes pump seat 1, pump chamber 8, threaded cap 4, threaded cap 4
Piezoelectric vibrator 5 is installed between pump chamber 8.
As shown in Figures 2 and 3, pump seat 1 is cylinder in the present embodiment.Side wall along the cylinder of pump seat 1 has insertion circle
The fluid outlet passage 101 in cylinder cross-sectional dimension direction.During work, fluid is from pump body via fluid outlet passage 101
Flow out to outside the pump housing.
The upper surface of pump seat 1 is circumferentially evenly equipped with the pitch angles that ring is arranged between six bluff body groups 6, i.e., each bluff body group
For 60 °.Each bluff body group 6 includes a preceding conductor 601 and a main bluff body 602.The circle centre position of pump seat 1 has at least one
The fluid hole 102 extended downwardly along the short transverse of pump seat 1, fluid hole 102 is then extended down to and fluid outlet passage 101
Communicate.
As shown in Figure 4 and Figure 5, pump body structure also includes in flow splitter 7, the present embodiment, and flow splitter 7 is cyclic structure, bag
Upper surface, lower surface and side wall are included, its unilateral section isType, beType rotates to be formed around symmetrical central shaft.Edge point
The side wall for flowing ring 7 is provided with six side inlet openings 701 for one week, and the upper surface of flow splitter 7 is provided with three upper inlet openings 702.For
Preferably resistance flowing effect is obtained, preferably, six side inlet openings 701 are also in 60 ° of square rings rows of spacing, and each inlet opening
701 just to a bluff body group.
As shown in Figure 6 and Figure 7, the bottom of pump chamber 8 is arranged on pump seat 1.The upper surface of pump chamber 8 is provided with three inlet openings 801,
Identical with the quantity of the upper inlet opening 702 of the upper end surface of flow splitter 7, position matches.After installation, the inlet opening 801 on pump chamber 8
Alignd with the upper inlet opening 702 on flow splitter 7.In the present embodiment, pump chamber inwall has two mounting grooves, respectively piezoelectricity up and down
Oscillator mounting groove 10 and flow splitter mounting groove 2, cell wall and the upper surface outer wall of flow splitter 7 of flow splitter mounting groove 2 are fitted close；Pump
A flow cavity is formed between the side wall of chamber 8 and the upper surface of flow splitter 7, lower surface and side wall, it is ensured that liquid is through the inlet opening of pump chamber 8
801 enter flowing intracavitary portion after inlet opening 701 on flow splitter 7., can simultaneously will be many due to being provided with multiple inlet openings 801
Different liquid are planted to send into inside pump chamber 8 through different inlet openings 801.
Pump seat, pump chamber 3, threaded cap 4, are provided with the pump of one closing of formation of piezoelectric vibrator 5 between threaded cap 4 and pump chamber 3
Body, is communicated by fluid outlet passage 101 and three inlet openings 801 with the external world.It is same that the work of piezoelectric pump can be divided into pumping
Fluid and pumping different fluid.Three liquid conduits 802 can be installed at three inlet openings 801 of pump chamber 8, same stream is pumped
During body, can three liquid conduits 802 be passed through same liquid, or closing one or two liquid conduits 802 simultaneously, in work
In liquid conduits 802, same liquid is passed through；When pumping different fluid, it can be needed to select using several according to liquid to be mixed
Root liquid conduits 802；If for example, three kinds of different fluids of pumping, different liquid are passed through in every liquid conduits 802；If pump
Two kinds of different fluids are sent, two or three liquid conduits 802 are can select.
After fluid is sent into through liquid conduits 802, initially enter in the flow cavity formed between pump chamber 8 and flow splitter 7, in stream
Dynamic intracavitary flowing, and enter the cavity formed between flow splitter 7 and pump seat through six side inlet openings 701 on flow splitter 7 respectively
Inside, is contacted with bluff body group.
After piezoelectric vibrator is powered, it will do protuberance and the reciprocal transformation to lower recess upwards and move.When piezoelectric vibrator is upward
During protuberance, liquid will be continued to flow into pump；When piezoelectric vibrator is to lower recess, pump inner volume is compressed, pressure increase, liquid one
Part enters fluid passage 101 through fluid hole, 102, then is flowed out to through flow pass 101 outside the pump housing, and some is through fluid
It is back to through side inlet opening 701 in the flow cavity formed between pump chamber 8 and flow splitter 7, in order to obtain pumping large flow fluid
Effect, the aperture of fluid hole 102 is more than the aperture of side inlet opening 701, it is ensured that the flow of fluid outflow is more than the stream that fluid is flowed into
Amount.During the inflow and outflow of whole liquid, bluff body group plays a part of " valve ".
In order that bluff body group preferably plays the effect of " valve ", because side inlet opening 701 is two-way fluid circulation passage,
What fluid was flowed into through side inlet opening 701 need to can just be ensured through design to preceding conductor 601 and the shape of main bluff body 602 and arrangement
Amount of the amount more than outflow.It is fluid inflow direction, preceding conductor 601 and main choked flow by side inlet opening 701 to the direction of fluid hole 102
The direction that both bodies 602 are flowed into along fluid is arranged in a linear from front to back.Preceding conductor 601 has drainage face and choked flow face, drainage
Facing to fluid inflow direction, i.e., the preceding conductor 601 in each bluff body group is towards side inlet opening 701, and fluid stream is fashionable, rises
Drainage；Choked flow is facing to fluid hole 102；When fluid flows out, play choked flow；Drainage is less than choked flow in face of the resistance of fluid
In face of the resistance of fluid；Main bluff body 602 includes drainage face and choked flow face, and its drainage is facing to the choked flow face of preceding conductor, and it hinders
Stream interface is towards fluid hole；The main choked flow of bluff body 602 is more than the resistance that preceding conductor drainage faces fluid in face of the resistance of fluid.Each
Bluff body group corresponds to the direction that a fluid is flowed into, for each bluff body group, with perpendicular to the flat of fluid inflow direction
On the basis of face, the projected area of preceding conductor 601 on this plane is less than the projected area of main bluff body 602 on this plane.Adopt
With such structure and arrangement, just bluff body group can be made to reach more preferable choked flow, drainage effect.In the present embodiment, preceding conductor
601 use hemisphere, and its sphere is drainage face, towards side inlet opening 701, and one end of its plane is choked flow face, towards fluid hole
102；Main bluff body 602 is used before cuboid, the side area relative with the preceding choked flow face of conductor 601 of main bluff body 602 be more than
The area in conductor choked flow face.
Embodiment 2
Except following structure is different from embodiment 1, other be the same as Examples 1.
Bluff body group includes a preceding conductor 601 and two main bluff bodys, for main bluff body I9 and main bluff body II3；With
On the basis of the plane of fluid inflow direction, the projected area of preceding conductor 601 on this plane exists less than main bluff body I9
Projected area in the plane；The projected areas of main bluff body I9 on this plane are less than or equal to main bluff body II3 in the plane
On projected area.
In addition, the structure of bluff body group is also designed to the main resistance of preceding three main bluff bodys of conductor or more
Fluid etc..
Embodiment 3
Present embodiments provide a kind of pump seat structure different with embodiment 2 from embodiment 1 and bluff body group 6 installs knot
Structure.
Pump seat includes two parts, pump frame 12 and choked flow housing 11, and the two can be structure as a whole or detachable structure.
Bluff body group 6 is arranged in choked flow housing 11, and fluid outlet passage 101 is located on pump frame 12, along the side wall insertion of pump frame 12
Its length direction；There is a fluid hole 102 extended downwardly along bluff body seat short transverse, fluid hole 102 in choked flow housing 11
Communicated with fluid outlet passage 101.
Compared with the mounting means of bluff body group 6 in embodiment 1, this structure is more stable.
Claims (8)
1. big flow bluff body Valveless piezoelectric pump, including pump seat, pump chamber, threaded cap, are provided with piezoelectricity between threaded cap and pump chamber
Oscillator；Bluff body is provided with pump seat, it is characterised in that：The fluid that pump seat side wall has its length direction of insertion flows out
Passage；Multiple bluff body groups are circumferentially evenly equipped with pump seat, each bluff body group includes a preceding conductor；Have at least on pump seat
One fluid hole for being extended downwardly along pump seat short transverse, fluid hole is communicated with fluid outlet passage；Also include flow splitter, including
Upper surface, lower surface and side wall, at least one side inlet opening is provided with along side wall, and flow splitter upper surface is provided with least one
Inlet opening；The pump chamber is sleeved on pump seat, and pump chamber inwall is fitted close with flow splitter upper surface, on pump chamber side wall and flow splitter
A flow cavity is formed between end face, lower surface and side wall；Pump chamber upper surface is provided with least one inlet opening, with flow splitter
The quantity of inlet opening is identical, and position matches.
2. big flow bluff body Valveless piezoelectric pump as claimed in claim 1, it is characterised in that：The bluff body group is also included extremely
A few main bluff body, is fluid inflow direction by the direction of side inlet opening to fluid hole, and preceding conductor and main bluff body are along fluid
The direction of inflow is arranged in a linear；On the basis of the plane perpendicular to fluid radial inflow direction, preceding conductor is on this plane
Projected area is less than the projected area of main bluff body on this plane.
3. big flow bluff body Valveless piezoelectric pump as claimed in claim 2, it is characterised in that：The preceding conductor has drainage face
With choked flow face, the drainage is facing to fluid inflow direction, and fluid stream is fashionable, plays drainage；The choked flow is facing to going out liquid
Hole；When fluid flows out, play choked flow；Drainage is less than the resistance that choked flow faces fluid in face of the resistance of fluid；The main choked flow
Body includes drainage face and choked flow face, and its drainage is facing to the choked flow face of preceding conductor, and its choked flow is facing to fluid hole；Main bluff body resistance
Stream interface is more than the resistance that preceding conductor drainage faces fluid to the resistance of fluid.
4. big flow bluff body Valveless piezoelectric pump as claimed in claim 2 or claim 3, it is characterised in that：The bluff body group includes
One preceding conductor and two main bluff bodys, for main bluff body I and main bluff body II；With perpendicular to the flat of fluid radial inflow direction
On the basis of face, the projected area of preceding conductor on this plane is less than the projected areas of main bluff body I on this plane；Main bluff body
The projected areas of I on this plane are less than or equal to the projected areas of main bluff body II on this plane.
5. big flow bluff body Valveless piezoelectric pump as claimed in claim 2, it is characterised in that：The preceding conductor and main bluff body
For the combination of the various sizes of bluff body of same shape；Or the combination of different shape bluff body.
6. big flow bluff body Valveless piezoelectric pump as claimed in claim 4, it is characterised in that：The preceding conductor and main bluff body
For the combination of the various sizes of bluff body of same shape；Or the combination of different shape bluff body.
7. big flow bluff body Valveless piezoelectric pump as claimed in claim 1, it is characterised in that：The pump seat include pump frame and
Choked flow housing, the bluff body group is arranged in choked flow housing, has the fluid stream of its length direction of insertion along pump frame side wall
Go out passage；There is a fluid hole extended downwardly along bluff body seat short transverse, fluid hole and fluid outflow are logical in choked flow housing
Road is communicated.
8. big flow bluff body Valveless piezoelectric pump as claimed in claim 1, it is characterised in that：The aperture of fluid hole is entered more than side
The aperture of fluid apertures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610124493.9A CN105508209B (en) | 2016-03-04 | 2016-03-04 | Big flow bluff body Valveless piezoelectric pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610124493.9A CN105508209B (en) | 2016-03-04 | 2016-03-04 | Big flow bluff body Valveless piezoelectric pump |
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| CN105508209A CN105508209A (en) | 2016-04-20 |
| CN105508209B true CN105508209B (en) | 2017-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610124493.9A Active CN105508209B (en) | 2016-03-04 | 2016-03-04 | Big flow bluff body Valveless piezoelectric pump |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109798239B (en) * | 2019-04-11 | 2020-05-12 | 长春工业大学 | Valveless piezoelectric pump for various choked bodies in cavity |
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| CN102312822A (en) * | 2011-03-24 | 2012-01-11 | 南京航空航天大学 | Rotary traveling wave valveless piezoelectric driving pump |
| CN102900658A (en) * | 2012-10-16 | 2013-01-30 | 南京航空航天大学 | Valveless piezoelectric pump with multiple conical cavities |
| CN102913422A (en) * | 2012-10-18 | 2013-02-06 | 南京航空航天大学 | Drag-reducing valveless piezoelectric pump with drag-reducing fluids |
| TW201500151A (en) * | 2013-06-24 | 2015-01-01 | Microjet Technology Co Ltd | Micro-gas pressure driving apparatus |
| CN104696203A (en) * | 2015-03-20 | 2015-06-10 | 青岛农业大学 | Composite bluff body valve-less piezoelectric pump |
| CN205388006U (en) * | 2016-03-04 | 2016-07-20 | 青岛农业大学 | Large -traffic choked flow body valveless piezoelectric pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3106264B2 (en) * | 1992-04-20 | 2000-11-06 | 本田技研工業株式会社 | Micro pump |
| JP4386165B2 (en) * | 2003-06-27 | 2009-12-16 | 日本電気株式会社 | Liquid circulation device and electronic apparatus equipped with the liquid circulation device |
| DE602004003316T2 (en) * | 2003-09-12 | 2007-03-15 | Samsung Electronics Co., Ltd., Suwon | Diaphragm pump for cooling air |
| WO2008111397A1 (en) * | 2007-03-12 | 2008-09-18 | Murata Manufacturing Co., Ltd. | Fluid transportation device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102312822A (en) * | 2011-03-24 | 2012-01-11 | 南京航空航天大学 | Rotary traveling wave valveless piezoelectric driving pump |
| CN102900658A (en) * | 2012-10-16 | 2013-01-30 | 南京航空航天大学 | Valveless piezoelectric pump with multiple conical cavities |
| CN102913422A (en) * | 2012-10-18 | 2013-02-06 | 南京航空航天大学 | Drag-reducing valveless piezoelectric pump with drag-reducing fluids |
| TW201500151A (en) * | 2013-06-24 | 2015-01-01 | Microjet Technology Co Ltd | Micro-gas pressure driving apparatus |
| CN104696203A (en) * | 2015-03-20 | 2015-06-10 | 青岛农业大学 | Composite bluff body valve-less piezoelectric pump |
| CN205388006U (en) * | 2016-03-04 | 2016-07-20 | 青岛农业大学 | Large -traffic choked flow body valveless piezoelectric pump |
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| CN105508209A (en) | 2016-04-20 |
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