CN112196758A - Passive valve piezoelectric pump with clamp-shaped amplifying mechanism - Google Patents
Passive valve piezoelectric pump with clamp-shaped amplifying mechanism Download PDFInfo
- Publication number
- CN112196758A CN112196758A CN202011066957.8A CN202011066957A CN112196758A CN 112196758 A CN112196758 A CN 112196758A CN 202011066957 A CN202011066957 A CN 202011066957A CN 112196758 A CN112196758 A CN 112196758A
- Authority
- CN
- China
- Prior art keywords
- pump
- shaped
- piezoelectric
- valve
- pump body
- 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
- 239000007788 liquid Substances 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 238000006073 displacement reaction Methods 0.000 claims abstract description 6
- 230000003321 amplification Effects 0.000 claims description 15
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 15
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 2
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Images
Classifications
-
- 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
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/003—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by piezoelectric means
-
- 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
- F04B53/10—Valves; Arrangement of valves
-
- 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
- F04B53/14—Pistons, piston-rods or piston-rod connections
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention discloses a passive valve piezoelectric pump with a clamp-shaped amplifying mechanism; the device comprises a pump cover, a sealing cover, a clamp-shaped amplifying mechanism, a piezoelectric stack, a pump body, a hexagon head bolt and a nut; the pump body is provided with an upper flow passage and a lower flow passage and is provided with a passive stop valve. In the invention, when the middle piezoelectric stack is shortened by applying reverse voltage, the two side piezoelectric stacks are lengthened by applying forward voltage, the two ends of the clip-shaped amplifying mechanism are pushed to move inwards to drive the elastic film to contract inwards, and liquid flows into the pump body; in order to improve the flow of the piezoelectric pump, the invention is provided with the clip-shaped amplifying mechanism which is used for amplifying the displacement of the stack, thereby improving the performance of the piezoelectric pump.
Description
Technical Field
The invention relates to a passive valve piezoelectric pump with a clamp-shaped amplification mechanism, and belongs to the field of fluid machinery.
Background
Piezoelectric micropumps have gained continuous research and extensive attention from research institutions around the world since the 70's of the 20 th century. The piezoelectric diaphragm pump is divided into a valveless piezoelectric diaphragm pump and a valved piezoelectric diaphragm pump according to the existence or nonexistence of a valve, the valved piezoelectric diaphragm pump is divided into an active valve piezoelectric diaphragm pump and a passive valve piezoelectric diaphragm pump, the output performance of the active valve piezoelectric diaphragm pump and the cut-off performance of the valve are good, but the structure is complex, the structure of the passive piezoelectric diaphragm pump is simple, and the cut-off performance of the valve is poor.
Disclosure of Invention
Aiming at the problems existing at present, the invention provides a piezoelectric stack pump which can amplify stack displacement and improve pumping efficiency.
The technical scheme adopted by the invention is as follows: a passive valve piezoelectric pump with a clamp-shaped amplification mechanism is composed of a pump cover (1), a sealing cover (2), two side piezoelectric stacks (3), a middle piezoelectric stack (4), a clamp-shaped amplification mechanism (5), a pump body (6), a hexagonal head bolt (8-1), a nut (8-2), a sealing cover bolt (2-1) and a bolt (5-1) in a rod;
the pump cover (1) is provided with a pump cover hexagonal bolt hole (1-1), the sealing cover (2) is provided with an L-shaped groove (6-13) and a counter bore (2-2), the sealing cover bolt (2-1) is matched with the counter bore (2-2), the clamp-shaped amplification mechanism (5) is composed of an in-rod bolt (5-1) and a rod (5-2), the rod (5-2) is provided with an in-rod bolt hole (5-3), the in-rod bolt (5-1) is matched with the in-rod bolt hole (5-3), the pump body (6) is provided with a liquid inlet (6-1), a pump body bolt hole (6-2), an upper flow channel (6-3), an inlet valve (6-4), an upper cavity (6-5), an elastic film (6-6), an outlet valve (6-7), The device comprises an upper liquid outlet (6-8), a lead hole (6-9), a lower liquid outlet (6-11), a lower cavity (6-12), an L-shaped groove (6-13), a lower runner (6-14) and a threaded hole (6-15), wherein the elastic film (6-6) is connected with a pump wall (6-10) in an adhesion manner, the elastic film (6-6) is connected with a clamp-shaped amplification mechanism (5) in an adhesion manner, the sealing cover (2) is connected with the elastic film (6-6) in an adhesion manner, the counter bore (2-2) is matched with the threaded hole (6-15), the sealing cover bolt (2-1) is matched with the threaded hole (6-15), and the inlet valve (6-4), the outlet valve (6-7) and the pump wall (6-10) are connected in an inlet valve (6-4), The outlet valve (6-7) is fixed in an L-shaped groove (6-13) with the thickness equal to that of the inlet valve (6-4) and the outlet valve (6-7), and the pump cover (1) and the pump body (6) are matched by using a hexagonal head bolt (8-1) and a nut (8-2) to achieve the aim of assembling the whole pump;
as a further improvement of the above technical solution, a clip-shaped amplifying mechanism (5) is arranged in the pump body (6), when the middle piezoelectric stack (4) is shortened by applying a reverse voltage, the two side piezoelectric stacks (3) are lengthened by applying a forward voltage, both ends of the clip-shaped amplifying mechanism (5) are pushed to move inwards, the elastic film (6-6) is driven to contract inwards, liquid flows into the pump body (6), when the two side piezoelectric stacks (3) are shortened by applying a reverse voltage, and the middle piezoelectric stack (4) is lengthened by applying a forward voltage, both ends of the clip-shaped amplifying mechanism (5) are driven to move outwards, the elastic film (6-6) is driven to expand outwards, the liquid flows out of the pump body (6), and displacements of the two side piezoelectric stacks (3) and the middle piezoelectric stack (4) can be amplified by the clip-shaped amplifying mechanism (5), so as to improve the output flow rate of the piezoelectric pump;
as a further improvement of the technical scheme, the inlet valve (6-4) and the outlet valve (6-7) are connected with the pump wall (6-10) in a mode that the inlet valve (6-4) and the outlet valve (6-7) are fixed in an L-shaped groove (6-13) which is equal to the inlet valve (6-4) and the outlet valve (6-7) in thickness, so that screw connection is omitted, the design is simple, and the assembly is convenient;
as a further improvement of the technical scheme, the pump body (6) is provided with lead holes (6-9) so as to lead the lead out of the pump body (6).
The invention has the beneficial effects that:
the pump body is internally provided with the clip-shaped amplifying mechanism which can amplify the displacement of the piezoelectric stack, so that the output flow of the piezoelectric pump is improved;
the valve in the pump body is mounted in the L-shaped groove with the thickness equal to that of the valve plate, so that the valve is simple to assemble.
Drawings
Fig. 1 is a schematic external view of the present invention.
Fig. 2 shows an exploded view of the present invention.
Fig. 3 is a schematic diagram of the pump cover structure of the present invention.
Fig. 4 is a schematic diagram of the pump body structure of the present invention.
Fig. 5 is a schematic structural view of the sealing cover of the present invention.
FIG. 6 is a schematic structural view of a clip-type magnifying mechanism according to the present invention.
Fig. 7 shows a schematic view of the construction of the rod of the present invention.
Detailed Description
The following detailed description of the present invention is given for the purpose of better understanding technical solutions of the present invention by those skilled in the art, and the present description is only exemplary and explanatory and should not be construed as limiting the scope of the present invention in any way.
Referring to fig. 1 to 7, in an embodiment of the present invention, the structure includes:
a passive valve piezoelectric pump with a clamp-shaped amplification mechanism comprises a pump cover (1), a sealing cover (2), two-side piezoelectric stacks (3), a middle piezoelectric stack (4), the clamp-shaped amplification mechanism (5), a pump body (6), a hexagonal bolt (8-1), a nut (8-2), a sealing cover bolt (2-1) and a rod inner bolt (5-1), wherein the pump cover (1) is provided with a pump cover hexagonal bolt hole (1-1), the sealing cover (2) is provided with an L-shaped groove (6-13) and a counter bore (2-2), the sealing cover bolt (2-1) is matched with the counter bore (2-2), the clamp-shaped amplification mechanism (5) comprises a rod inner bolt (5-1) and a rod (5-2), the rod (5-2) is provided with a rod inner bolt hole (5-3), the screw rod internal bolt (5-1) is matched with the screw rod internal bolt hole (5-3), the pump body (6) is provided with a liquid inlet (6-1), a pump body bolt hole (6-2), an upper flow channel (6-3), an inlet valve (6-4), an upper cavity (6-5), an elastic film (6-6), an outlet valve (6-7), an upper liquid outlet (6-8), a lead wire hole (6-9), a lower liquid outlet (6-11), a lower cavity (6-12), an L-shaped groove (6-13), a lower flow channel (6-14) and a threaded hole (6-15), the elastic film (6-6) is connected with the pump wall (6-10) in an adhesion manner, and the elastic film (6-6) is connected with the clamp-shaped amplification mechanism (5) in an adhesion manner, the sealing cover (2) is connected with the elastic film (6-6) in an adhesion mode, the counter bore (2-2) is matched with the threaded hole (6-15), the sealing cover bolt (2-1) is matched with the threaded hole (6-15), the inlet valve (6-4) and the outlet valve (6-7) are connected with the pump wall (6-10) in a mode that the inlet valve (6-4) and the outlet valve (6-7) are fixed in an L-shaped groove (6-13) with the thickness equal to that of the inlet valve (6-4) and the outlet valve (6-7), and the pump cover (1) and the pump body (6) are matched through the hexagonal head bolt (8-1) and the nut (8-2) to achieve the purpose of assembling the whole pump;
as a further improvement of the above technical solution, a clip-shaped amplifying mechanism (5) is arranged in the pump body (6), when the middle piezoelectric stack (4) is shortened by applying a reverse voltage, the two side piezoelectric stacks (3) are lengthened by applying a forward voltage, both ends of the clip-shaped amplifying mechanism (5) are pushed to move inwards, the elastic film (6-6) is driven to contract inwards, liquid flows into the pump body (6), when the two side piezoelectric stacks (3) are shortened by applying a reverse voltage, and the middle piezoelectric stack (4) is lengthened by applying a forward voltage, both ends of the clip-shaped amplifying mechanism (5) are driven to move outwards, the elastic film (6-6) is driven to expand outwards, the liquid flows out of the pump body (6), and displacements of the two side piezoelectric stacks (3) and the middle piezoelectric stack (4) can be amplified by the clip-shaped amplifying mechanism (5), so as to improve the output flow rate of the piezoelectric pump;
as a further improvement of the technical scheme, the inlet valve (6-4) and the outlet valve (6-7) are connected with the pump wall (6-10) in a mode that the inlet valve (6-4) and the outlet valve (6-7) are fixed in an L-shaped groove (6-13) which is equal to the inlet valve (6-4) and the outlet valve (6-7) in thickness, so that screw connection is omitted, the design is simple, and the assembly is convenient;
as a further improvement of the technical scheme, the pump body (6) is provided with lead holes (6-9) so as to lead the lead out of the pump body (6).
The working process of the invention is divided into a first working process and a second working process:
the first working process comprises the following steps: applying a positive electric signal to the middle piezoelectric stack (4), applying a reverse electric signal to the two side piezoelectric stacks (3), shortening the two side piezoelectric stacks (3), extending the middle piezoelectric stack (4), pushing the clip-shaped amplifying mechanism (5), expanding two ends of the clip-shaped amplifying mechanism (5) outwards, so that the elastic film (6-6) deforms outwards, further reducing the volumes of the upper cavity (6-5) and the lower cavity (6-12), increasing the pressure, opening the outlet valve (6-7), closing the inlet valve (6-4), and discharging the liquid in the upper cavity (6-5) and the lower cavity (6-12) out of the pump body (6) from the upper liquid outlet (6-8) and the lower liquid outlet (6-11) respectively;
the second working process: applying a reverse electric signal to the middle piezoelectric stack (4), applying a forward electric signal to the two side piezoelectric stacks (3), shortening the middle piezoelectric stack (4), extending the two side piezoelectric stacks (3), pushing the clip-shaped amplifying mechanism (5), expanding and contracting the two ends of the clip-shaped amplifying mechanism (5) inwards, deforming the elastic film (6-6) inwards, further increasing the volumes of the upper cavity (6-5) and the lower cavity (6-12), reducing the pressure, opening the inlet valve (6-4), closing the outlet valve (6-7), allowing the liquid to enter the upper cavity (6-5) and the lower cavity (6-12) from the liquid inlet (6-1), and realizing continuous output of the liquid through the circulating work of the two working processes.
The principles and embodiments of the present invention have been described herein using specific examples, which are intended to facilitate an understanding of the principles and core concepts of the invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (4)
1. A passive valve piezoelectric pump with a clamp-shaped amplification mechanism comprises a pump cover (1), a sealing cover (2), sealing cover bolts (2-1), two-side piezoelectric stacks (3), a middle piezoelectric stack (4), the clamp-shaped amplification mechanism (5), an in-rod bolt (5-1), a pump body (6), a hexagonal head bolt (8-1) and a nut (8-2), wherein the pump cover (1) is provided with a pump cover hexagonal head bolt hole (1-1), the sealing cover (2) is provided with an L-shaped groove (6-13) and a counter bore (2-2), the sealing cover bolt (2-1) is matched with the counter bore (2-2), the clamp-shaped amplification mechanism (5) comprises an in-rod bolt (5-1) and a rod (5-2), the rod (5-2) is provided with an in-rod bolt hole (5-3), the screw rod internal bolt (5-1) is matched with the screw rod internal bolt hole (5-3), the pump body (6) is provided with a liquid inlet (6-1), a pump body bolt hole (6-2), an upper flow channel (6-3), an inlet valve (6-4), an upper cavity (6-5), an elastic film (6-6), an outlet valve (6-7), an upper liquid outlet (6-8), a lead wire hole (6-9), a lower liquid outlet (6-11), a lower cavity (6-12), an L-shaped groove (6-13), a lower flow channel (6-14) and a threaded hole (6-15), the elastic film (6-6) is connected with the pump wall (6-10) in an adhesion manner, and the elastic film (6-6) is connected with the clamp-shaped amplification mechanism (5) in an adhesion manner, the sealing cover (2) is connected with the elastic film (6-6) in an adhesion mode, the counter bore (2-2) is matched with the threaded hole (6-15), the sealing cover bolt (2-1) is matched with the threaded hole (6-15), the inlet valve (6-4) and the outlet valve (6-7) are connected with the pump wall (6-10) in a mode that the inlet valve (6-4) and the outlet valve (6-7) are fixed in an L-shaped groove (6-13) with the thickness equal to that of the inlet valve (6-4) and the outlet valve (6-7), and the pump cover (1) and the pump body (6) are matched through the hexagonal head bolt (8-1) and the nut (8-2) to achieve the purpose of assembling the whole pump.
2. The passive valve piezoelectric pump with the clip-shaped amplifying mechanism according to claim 1, wherein the clip-shaped amplifying mechanism (5) is disposed in the pump body (6), when the middle piezoelectric stack (4) is shortened by a reverse voltage, the two piezoelectric stacks (3) are lengthened by a forward voltage, both ends of the clip-shaped amplifying mechanism (5) are pushed to move inward, the elastic films (6-6) are driven to contract inward, the liquid flows into the pump body (6), when the two piezoelectric stacks (3) are shortened by a reverse voltage, and the middle piezoelectric stack (4) is lengthened by a forward voltage, both ends of the clip-shaped amplifying mechanism (5) are driven to move outward, the elastic films (6-6) are driven to expand outward, the liquid flows out of the pump body (6), and the displacements of the two piezoelectric stacks (3) and the middle piezoelectric stack (4) can be amplified by the clip-shaped amplifying mechanism (5), thereby improving the output flow of the piezoelectric pump.
3. The passive valve piezoelectric pump with the clip-shaped amplification mechanism according to claim 1, wherein the inlet valve (6-4) and the outlet valve (6-7) are connected with the pump wall (6-10) in a manner that the inlet valve (6-4) and the outlet valve (6-7) are fixed in an L-shaped groove (6-13) which is L-shaped and has the same thickness as the inlet valve (6-4) and the outlet valve (6-7), so that screw connection is omitted, the design is simple, and the assembly is convenient.
4. A passive valve piezoelectric pump having a clip amplification mechanism according to claim 1, wherein the pump body (6) is provided with lead holes (6-9) for guiding leads out of the pump body (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011066957.8A CN112196758B (en) | 2020-10-04 | 2020-10-04 | Passive valve piezoelectric pump with clamp-shaped amplifying mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011066957.8A CN112196758B (en) | 2020-10-04 | 2020-10-04 | Passive valve piezoelectric pump with clamp-shaped amplifying mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112196758A true CN112196758A (en) | 2021-01-08 |
| CN112196758B CN112196758B (en) | 2022-06-17 |
Family
ID=74013049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011066957.8A Active CN112196758B (en) | 2020-10-04 | 2020-10-04 | Passive valve piezoelectric pump with clamp-shaped amplifying mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112196758B (en) |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4518887A (en) * | 1983-02-25 | 1985-05-21 | Nec Corporation | Differential lever actuator including differentially force-transmitting members which are not liable to break |
| US4736131A (en) * | 1985-07-30 | 1988-04-05 | Nec Corporation | Linear motor driving device |
| US5907211A (en) * | 1997-02-28 | 1999-05-25 | Massachusetts Institute Of Technology | High-efficiency, large stroke electromechanical actuator |
| JP2002371967A (en) * | 2001-06-15 | 2002-12-26 | Hitachi Ltd | Low vibration piezopump |
| US20090134747A1 (en) * | 2006-06-02 | 2009-05-28 | Klaus Reichmann | Piezoelectric Generator |
| KR101279482B1 (en) * | 2012-04-20 | 2013-06-27 | 인하대학교 산학협력단 | Stroke amplifier for piezoeletric actuator |
| CN103388578A (en) * | 2013-08-18 | 2013-11-13 | 吉林大学 | Mutually-inductive piezoelectric equal-proportion blending pump |
| CN104821738A (en) * | 2015-05-13 | 2015-08-05 | 西安交通大学 | Tree-climbing piezoelectric actuator and actuation method |
| CN205195594U (en) * | 2015-12-07 | 2016-04-27 | 天津大学 | Two holders are received a little to dual drive |
| CN108302016A (en) * | 2018-03-13 | 2018-07-20 | 广州大学 | A kind of passive valve piezoelectric pump of continuous fluid |
| CN108771784A (en) * | 2018-06-22 | 2018-11-09 | 杨阳 | A kind of high-precision syringe using piezoelectric stack |
| CN108847781A (en) * | 2018-06-12 | 2018-11-20 | 湖北三江航天红林探控有限公司 | A kind of big stroke actuator based on Piezoelectric Ceramic |
| WO2018210012A1 (en) * | 2017-05-18 | 2018-11-22 | 西安交通大学 | Anti-symmetric arrangement type single piezoelectric stack driven bidirectional rotary inertial actuator and method |
| CN109139431A (en) * | 2018-09-26 | 2019-01-04 | 江西制造职业技术学院 | A kind of piezoelectric stack Micropump based on triangle and lever principle |
| CN209402438U (en) * | 2019-01-30 | 2019-09-17 | 吉林大学 | A kind of step piezoelectric rotating driver twice |
| CN110761965A (en) * | 2019-12-11 | 2020-02-07 | 潍坊聚德电子有限公司 | Micro-flow pump |
-
2020
- 2020-10-04 CN CN202011066957.8A patent/CN112196758B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4518887A (en) * | 1983-02-25 | 1985-05-21 | Nec Corporation | Differential lever actuator including differentially force-transmitting members which are not liable to break |
| US4736131A (en) * | 1985-07-30 | 1988-04-05 | Nec Corporation | Linear motor driving device |
| US5907211A (en) * | 1997-02-28 | 1999-05-25 | Massachusetts Institute Of Technology | High-efficiency, large stroke electromechanical actuator |
| JP2002371967A (en) * | 2001-06-15 | 2002-12-26 | Hitachi Ltd | Low vibration piezopump |
| US20090134747A1 (en) * | 2006-06-02 | 2009-05-28 | Klaus Reichmann | Piezoelectric Generator |
| KR101279482B1 (en) * | 2012-04-20 | 2013-06-27 | 인하대학교 산학협력단 | Stroke amplifier for piezoeletric actuator |
| CN103388578A (en) * | 2013-08-18 | 2013-11-13 | 吉林大学 | Mutually-inductive piezoelectric equal-proportion blending pump |
| CN104821738A (en) * | 2015-05-13 | 2015-08-05 | 西安交通大学 | Tree-climbing piezoelectric actuator and actuation method |
| CN205195594U (en) * | 2015-12-07 | 2016-04-27 | 天津大学 | Two holders are received a little to dual drive |
| WO2018210012A1 (en) * | 2017-05-18 | 2018-11-22 | 西安交通大学 | Anti-symmetric arrangement type single piezoelectric stack driven bidirectional rotary inertial actuator and method |
| CN108302016A (en) * | 2018-03-13 | 2018-07-20 | 广州大学 | A kind of passive valve piezoelectric pump of continuous fluid |
| CN108847781A (en) * | 2018-06-12 | 2018-11-20 | 湖北三江航天红林探控有限公司 | A kind of big stroke actuator based on Piezoelectric Ceramic |
| CN108771784A (en) * | 2018-06-22 | 2018-11-09 | 杨阳 | A kind of high-precision syringe using piezoelectric stack |
| CN109139431A (en) * | 2018-09-26 | 2019-01-04 | 江西制造职业技术学院 | A kind of piezoelectric stack Micropump based on triangle and lever principle |
| CN209402438U (en) * | 2019-01-30 | 2019-09-17 | 吉林大学 | A kind of step piezoelectric rotating driver twice |
| CN110761965A (en) * | 2019-12-11 | 2020-02-07 | 潍坊聚德电子有限公司 | Micro-flow pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112196758B (en) | 2022-06-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102691694B (en) | Self-driven precise stepwise hydraulic power device | |
| CN202597033U (en) | Series-parallel connection combination driving piezoelectric pump | |
| CN112196758B (en) | Passive valve piezoelectric pump with clamp-shaped amplifying mechanism | |
| CN108180128B (en) | The single plunger pump of active flow | |
| CN205243798U (en) | Hydraulic pressure enlargies formula piezoelectric stack pump | |
| CN111980885B (en) | Stacked double-cavity parallel piezoelectric pump with partition plate at outlet | |
| CN206071840U (en) | A kind of hydraulic pressure amplifying type ultra-magnetic telescopic transfer tube | |
| CN210343889U (en) | Supercharging device for hydraulic cylinder | |
| CN112049781A (en) | Passive valve piezoelectric pump with amplifying mechanism | |
| CN216477770U (en) | Piezoelectric pump with double pump cavities integrated valve sheet body | |
| CN109162904B (en) | Tilting type double-active-valve piezoelectric pump | |
| GB1132973A (en) | Improvements in hydraulic transmission power plants | |
| CN213684460U (en) | Volume-variable piezoelectric pump | |
| CN209976747U (en) | Dome composite construction valveless piezoelectric pump | |
| CN113123945A (en) | Tuning fork type resonant pump based on flexible support for agricultural sprinkling irrigation | |
| CN208803974U (en) | A kind of multi-cylinder piston low-pressure pump | |
| CN113187701A (en) | Lever amplification type piezoelectric pump | |
| CN109244507B (en) | Fuel cell hydrogen reflux method | |
| CN112177902A (en) | Vane type bluff body piezoelectric pump | |
| CN112196773A (en) | Annular cavity secondary vibration valveless piezoelectric pump | |
| CN112196757A (en) | Piezoelectric stack plunger pump with double-lever amplification | |
| CN112196754B (en) | Integrative valve piezoelectric pump based on rhombus mechanism of enlargiing | |
| CN106996366B (en) | Three-plunger hydraulic diaphragm reciprocating pump | |
| CN219993845U (en) | Water hammer preventing device for water pump outlet of tubular membrane system | |
| CN213711256U (en) | Booster pump body structure and micropump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |