CN111623010B - Pulse scanning type fluid oscillation exciter - Google Patents
Pulse scanning type fluid oscillation exciter Download PDFInfo
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- CN111623010B CN111623010B CN202010501136.6A CN202010501136A CN111623010B CN 111623010 B CN111623010 B CN 111623010B CN 202010501136 A CN202010501136 A CN 202010501136A CN 111623010 B CN111623010 B CN 111623010B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15C—FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMPUTING OR CONTROL PURPOSES
- F15C1/00—Circuit elements having no moving parts
- F15C1/22—Oscillators
Abstract
The present disclosure provides a pulsed swept fluidic oscillator actuator comprising a first partial fluidic oscillator and at least one second partial fluidic oscillator, the first partial fluidic oscillator comprising a first partial inlet, two first partial outlets, and at least one first partial feedback channel for periodically alternating fluid out of the two outlets, the second partial fluidic oscillator comprising a second partial inlet, a second partial outlet, and at least one second partial feedback channel for periodically changing the direction of the second partial outlet jet, the first partial fluidic oscillator having at least one first partial outlet to which the second partial fluidic oscillator is connected. In the embodiment, two forms of fluidic oscillators are fused to form the pulse scanning type fluidic oscillation exciter, so that an exciting jet with oscillation change in speed and direction is formed at the outlet of the exciter.
Description
Technical Field
The present disclosure relates to a fluid oscillator, and more particularly, to a pulse sweep type fluid oscillation exciter.
Background
The active flow control is to directly inject a proper disturbance mode in a flow environment to be coupled with the internal mode of the system, so that high control benefit is obtained with low energy consumption, and the control effect of 'four-two-dial jack' is achieved. Compared with a traditional passive control method or a steady-state blowing and sucking method, the active flow control method based on periodic unsteady-state excitation is higher in efficiency. These periodic unsteady perturbations can be generated by various actuators. Compared with other types of exciters, the fluidic oscillator does not have any moving parts and can generate oscillating jet flow at the outlet under a certain steady-state inlet fluid pressure. Its reliability and robustness have natural advantages since its oscillatory flow is completely self-exciting and self-sustaining, relying entirely on the fluid properties within itself. And the working frequency range is wide, from dozens of hertz to tens of thousands of hertz; the jet velocity can be varied from subsonic to supersonic.
The existing fluidic oscillators can be mainly divided into two categories, the first category is a pulse jet fluidic oscillator, and the other category is a sweep jet fluidic oscillator.
The pulse type jet oscillator is characterized in that: comprises an inlet and two outlets. Under steady-state inlet conditions, i.e. with no change in the inlet flow, the main flow exits alternately at the two outlets, at each outlet, in the direction of the outlet channel, a pulsed jet is formed. The sweep flow type fluid oscillator is characterized in that: only one outlet and one outlet are included. Under steady-state inlet conditions, i.e. when the inlet flow rate does not change, the absolute value of the velocity of the main flow at the outlet does not change, but the direction swings at a certain frequency within a certain angle range, forming a sweeping jet. Both the above oscillators cannot form an excitation jet with oscillation change of speed and direction at the outlet.
Disclosure of Invention
In order to solve at least one of the above technical problems, the present disclosure provides a pulse scanning type fluidic oscillation exciter, which includes:
a pulse-swept fluidic oscillator actuator comprising a first partial fluidic oscillator and at least one second partial fluidic oscillator, the first partial fluidic oscillator comprising a first partial inlet, two first partial outlets, and at least one first partial feedback channel for periodically alternating fluid out of the two outlets, the second partial fluidic oscillator comprising a second partial inlet, a second partial outlet, and at least one second partial feedback channel for periodically changing the direction of the second partial outlet, the first partial fluidic oscillator having the second partial fluidic oscillator connected to at least one first partial outlet.
Further, the first partial fluidic oscillator is a pulsed fluidic oscillator, the first partial fluidic oscillator further comprising: the two first part outlets are respectively a first outlet and a second outlet;
the first portion inlet communicates with the first outlet through the first sidewall passage; the first portion inlet communicates with the second outlet through the second sidewall passage.
Furthermore, the number of the first part of feedback channels is two, and the first part of feedback channels are respectively a first feedback channel and a second feedback channel; the first side wall channel is provided with a first feedback outlet close to the first outlet; the second side wall channel is provided with a second feedback outlet close to the second outlet; the first part inlet is communicated with a first feedback return port and a second feedback return port, and the first feedback outlet is communicated with the first feedback return port through the first feedback channel; the second feedback outlet is communicated with the second feedback port through the second feedback channel.
Furthermore, the number of the first part feedback channels is one, a first feedback port and a second feedback port are arranged at the connecting part of the first part inlet and the first side wall channel and the connecting part of the first part inlet and the second side wall channel, and the first feedback port is communicated with the second feedback port through the first part feedback channels.
Further, the first partial fluidic oscillator comprises a first swept fluidic oscillator and a flow distribution wedge, the flow distribution wedge is arranged at an outlet of the first swept fluidic oscillator, so that the outlet of the first swept fluidic oscillator is divided into a first outlet and a second outlet, and a first side wall channel and a second side wall channel are formed between left and right side walls of the flow distribution wedge and left and right inner side walls of the outlet of the first swept fluidic oscillator.
Further, the first swept type fluidic oscillator includes a first flow chamber, the first portion inlet is communicated with the first outlet through the first flow chamber and the first sidewall passage in this order, and the first portion inlet is communicated with the second outlet through the first flow chamber and the second sidewall passage in this order.
Furthermore, the number of the first part of feedback channels is two, the first part of feedback channels are respectively a first feedback channel and a second feedback channel, the first flow chamber is provided with a first feedback outlet and a second feedback outlet near the outlet of the first flow chamber, and the first flow chamber is provided with a first feedback return port and a second feedback return port near the inlet of the first flow chamber; the first feedback outlet is communicated with the first feedback port through the first feedback channel; the second feedback outlet is communicated with the second feedback port through the second feedback channel.
Further, the second partial fluidic oscillator comprises a second swept fluidic oscillator comprising a second flow chamber, the second partial inlet in communication with the second partial outlet through the second flow chamber;
the number of the second part of feedback channels is two, the second part of feedback channels are respectively a third feedback channel and a fourth feedback channel, a third feedback outlet and a fourth feedback outlet are arranged at the position, close to the outlet, of the second flow chamber, and a third feedback return port and a fourth feedback return port are arranged at the position, close to the inlet, of the second flow chamber; the third feedback outlet is communicated with the third feedback port through the third feedback channel; the fourth feedback outlet is communicated with the fourth feedback port through the fourth feedback channel.
Further, the oscillation frequency of the first partial fluidic oscillator is f1, and the oscillation frequency of the second partial fluidic oscillator is f2, wherein f1 is less than or equal to f 2/2.
Further, the length of the first part feedback channel is L1, and the length of the second part feedback channel is L2, wherein L1 is more than or equal to 2 × L2.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.
Fig. 1 is a schematic structural diagram of a pulse scanning type fluidic oscillation exciter according to a first embodiment;
fig. 2 is another structural schematic diagram of a pulse scanning type fluid oscillation exciter according to the first embodiment;
FIG. 3 is a schematic structural diagram of a first partial fluidic oscillator according to the first embodiment;
FIG. 4 is a schematic diagram of a second partial fluidic oscillator of the present disclosure;
fig. 5 is a schematic structural diagram of a pulse scanning type fluidic oscillation exciter according to a second embodiment of the disclosure;
fig. 6 is a schematic structural diagram of a pulse-swept fluidic oscillation exciter according to a third embodiment of the present disclosure;
the first partial fluidic oscillator 1, the first partial inlet 11, the first partial outlet 12, the first outlet 121, the second outlet 122, the first partial feedback channel 13, the first feedback channel 131, the second feedback channel 132, the first sidewall channel 14, the second sidewall channel 15, the first feedback outlet 16, the second feedback outlet 17, the first feedback port 18, the second feedback port 19, the second partial fluidic oscillator 2, the second partial inlet 21, the second partial outlet 22, the second partial feedback channel 23, the third feedback channel 231, the fourth feedback channel 232, the third feedback outlet 25, the fourth feedback outlet 26, the third feedback port 27, the fourth feedback port 28, the first feedback port 31, the second feedback port 32, the first swept fluidic oscillator 41, the distribution wedge 42, and the first flow chamber 43.
Detailed Description
The present disclosure will be described in further detail with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the present disclosure. It should be further noted that, for the convenience of description, only the portions relevant to the present disclosure are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict. The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Example one
Referring to fig. 1-3, a pulsed swept fluidic oscillation exciter comprises a first partial fluidic oscillator 1, and at least one second partial fluidic oscillator 2, the first partial fluidic oscillator 1 comprising a first partial inlet 11, two first partial outlets 12, and at least one first partial feedback channel 13 for periodically alternating fluid from the two outlets, the second partial fluidic oscillator 2 comprising a second partial inlet 21, a second partial outlet 22, and at least one second partial feedback channel 23 for periodically changing the direction of the jet of the second partial outlet 22, the first partial fluidic oscillator 1 being connected to the second partial fluidic oscillator 2 via the at least one first partial outlet 12.
In the embodiment, two forms of fluidic oscillators are fused to form the pulse scanning type fluidic oscillation exciter, so that an exciting jet with oscillation change in speed and direction is formed at the outlet of the exciter.
Referring to fig. 1 to 3, in the present embodiment, the first partial fluidic oscillator 1 is a pulsed fluidic oscillator, and the first partial fluidic oscillator 1 further includes: a first side wall channel 14 and a second side wall channel 15, the two first portion outlets 12 being a first outlet 121 and a second outlet 122, respectively;
the first portion inlet 11 communicates with the first outlet 121 through the first sidewall passage 14; the first portion inlet 11 communicates with the second outlet 122 through the second sidewall passage 15.
The number of the first partial feedback channels 13 is two, namely a first feedback channel 131 and a second feedback channel 132; the first sidewall passage 14 is provided with a first feedback outlet 16 adjacent to the first outlet 121; the second sidewall passage 15 is provided with a second feedback outlet 17 adjacent to the second outlet 122; the first part inlet 11 is communicated with a first feedback return port 18 and a second feedback return port 19, and the first feedback outlet 16 is communicated with the first feedback return port 18 through the first feedback channel 131; the second feedback outlet 17 communicates with the second feedback port 19 via the second feedback channel 132.
Referring to fig. 1 and 4, in this example, the second partial fluidic oscillator 2 comprises a second swept fluidic oscillator comprising a second flow chamber 24, the second partial inlet 21 communicating with the second partial outlet 22 through the second flow chamber 24.
Referring to fig. 1 to 4, the number of the second partial feedback channels 23 is two, and the second partial feedback channels are respectively a third feedback channel 231 and a fourth feedback channel 232, the second flow chamber 24 is provided with a third feedback outlet 25 and a fourth feedback outlet 26 near the outlet thereof, and the second flow chamber 24 is provided with a third feedback return 27 and a fourth feedback return 28 near the inlet thereof; the third feedback outlet 25 is communicated with the third feedback port 27 through the third feedback channel 231; the fourth feedback outlet 26 communicates with the fourth feedback port 28 through the fourth feedback passage 232.
Referring to fig. 1-4, in this embodiment, the first partial fluidic oscillator 1 is based on the coanda effect, and after the jet enters the first partial fluidic oscillator 1 from the first partial inlet 11, the jet will be attached to one of the first sidewall channel 14 or the second sidewall channel 15, when the jet is attached to the first sidewall channel 14, due to the resistance limit at the first outlet 121, a part of the fluid enters the first feedback channel 131 and causes a pressure increase on the left side of the first partial fluidic oscillator 1, which pressure increase, in addition to the lateral disturbance of the jet, causes the jet to switch to the other side, after the jet direction switch, the same phenomenon occurs on the right side of the first partial fluidic oscillator 1 and causes a self-sustaining oscillation behavior, and the pulsed jet alternately exits the first outlet 121 and the second outlet 122, respectively into the second partial fluidic oscillator 2.
And under the influence of the coanda effect, the backflow entering the second part feedback channel 23 of the second part partial fluid oscillator 2 excites self-oscillation and causes the flow generated by the second part outlet 22 to swing back and forth between an angle of 15-165 degrees with the outlet plane.
Since the first partial fluidic oscillator 1 forms a pulsating flow at the first outlet 121 and the second outlet 122, the inlet flow of the second partial fluidic oscillator 2 is also pulsating, which in turn causes the outlet jet of the second partial fluidic oscillator to oscillate not only in the flow direction, but also in the flow rate and speed.
According to the required configuration, any one of the first outlet 121 and the second outlet 122 of the first partial fluidic oscillator 1 can be selectively connected with the second partial fluidic oscillator 2, and at this time, the second partial outlet 22 connected with the second partial fluidic oscillator 2 can generate a pulse sweep type oscillating jet, i.e. a jet with the direction, the flow rate and the speed changing simultaneously; whereas in said first part of the outlet 12, to which said second part of the fluidic oscillator 2 is not connected, an oscillating jet of a pulse type, i.e. a jet with a varying flow rate and velocity, is generated.
According to a desired configuration, the first outlet 121 and the second outlet 122 of the first partial fluidic oscillator 1 may be respectively connected to one second partial fluidic oscillator 2. The two second partial fluidic oscillators 2 are operated relatively independently so that both second partial outlets 22 produce an oscillating jet of the pulsed swept type.
Example two
Referring to fig. 5, the present embodiment is substantially the same as the first embodiment, except that the number of the first part feedback channels 13 is one, the connection part of the first part inlet 11 and the first and second side wall channels 14 and 15 is provided with a first feedback port 31 and a second feedback port 32, and the first feedback port 31 and the second feedback port 32 are communicated through the first part feedback channels 13.
In this embodiment, because there is only one first feedback channel 13, the oscillation is mainly generated by the propagation of compression wave and expansion wave in the first feedback channel 13 at sonic velocity, when the jet is close to the second sidewall channel 15, the pressure of the second feedback port 32 is reduced by the entrainment of the jet, the pressure reduction generates the propagation of expansion wave in the first feedback channel 13, and when the jet is close to the second sidewall channel 15, the pressure at the first outlet 121 acts on the first feedback port 31 to suddenly increase the pressure thereof, which causes the first feedback channel 13 to generate a compression wave from the first feedback port 31, and when these disturbances are transmitted to the second feedback port 32 through the first feedback channel 13, the jet oscillates between the first sidewall channel 14 and the second sidewall channel 15, thereby forming a pulsed oscillatory flow at the first outlet 121 and the second outlet 122.
EXAMPLE III
Referring to fig. 6, the present embodiment is substantially the same as the first embodiment, except that the first partial fluidic oscillator 1 includes a first swept fluidic oscillator 41 and a flow distribution wedge 42, the flow distribution wedge 42 is disposed at an outlet of the first swept fluidic oscillator 41, so that the outlet of the first swept fluidic oscillator 41 is divided into a first outlet 121 and a second outlet 122, and a first sidewall channel 14 and a second sidewall channel 15 are formed between left and right sidewalls of the flow distribution wedge 42 and left and right inner sidewalls of the outlet of the first swept fluidic oscillator 41. This embodiment converts the first swept fluidic oscillator 41 into a pulsed fluidic oscillator by the shunting wedge 42.
The first swept fluidic oscillator 41 includes a first flow chamber 43, the first portion inlet 11 communicates with the first outlet 121 via the first flow chamber 43 and the first sidewall passage 14 in this order, and the first portion inlet 11 communicates with the second outlet 122 via the first flow chamber 43 and the second sidewall passage 15 in this order.
The number of the first partial feedback channels 13 is two, and the first partial feedback channels are respectively a first feedback channel 131 and a second feedback channel 132, the first flow chamber 43 is provided with a first feedback outlet 16 and a second feedback outlet 17 near the outlet thereof, and the first flow chamber 43 is provided with a first feedback return port 18 and a second feedback return port 19 near the inlet thereof; the first feedback outlet 16 communicates with the first feedback port 18 through the first feedback channel 131; the second feedback outlet 17 communicates with the second feedback port 19 via the second feedback channel 132.
Referring to fig. 1-6, the main oscillation frequency of the pulse-sweep fluidic oscillation exciter of the present disclosure is determined by the first partial fluidic oscillator 1, and the longer the length of the first partial feedback channel 13, the smaller the frequency thereof, in order to ensure that the pulse-sweep type oscillating jet can be generated at the second partial outlet 22, the oscillation frequency of the first partial fluidic oscillator 1 is f1, and the oscillation frequency of the second partial fluidic oscillator 2 is f2, wherein f1 ≦ f 2/2. The length of the first part feedback channel 13 is L1, the length of the second part feedback channel 23 is L2, wherein L1 is more than or equal to 2 × L2.
According to the required configuration, the length proportion of the first part feedback channel 13 and the second part feedback channel 23 can be changed, so that the proportion of the jet pulse component and the sweep component of the second part outlet 22 can be changed.
In practice, the operating frequency and jet velocity profile of the oscillating jet at the second section outlet 22 can be varied by varying the pressure and flow rate at the first section inlet 11 due to the geometric dimensioning of the fluidic oscillation actuator.
In the description of the present specification, the terms "first", "second", "third", and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of the feature.
It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of illustration of the disclosure and are not intended to limit the scope of the disclosure. Other variations or modifications may occur to those skilled in the art, based on the foregoing disclosure, and are still within the scope of the present disclosure.
Claims (10)
1. A pulse-sweep fluidic oscillation exciter is characterized by comprising a first partial fluidic oscillator and at least one second partial fluidic oscillator;
the first part of the fluid oscillator comprises a first part inlet, two first part outlets and at least one first part feedback channel for periodically enabling the fluid to alternately go out of the two outlets;
the second partial fluidic oscillator comprises a second partial inlet, a second partial outlet, and at least one second partial feedback channel for periodically changing the direction of the jet at the second partial outlet, and the second partial fluidic oscillator is connected to at least one first partial outlet of the first partial fluidic oscillator.
2. A swept-pulse oscillatory actuator in accordance with claim 1, wherein the first partial fluidic oscillator is a pulsed fluidic oscillator, the first partial fluidic oscillator further comprising: the two first part outlets are respectively a first outlet and a second outlet;
the first portion inlet communicates with the first outlet through the first sidewall passage; the first portion inlet communicates with the second outlet through the second sidewall passage.
3. A swept pulse oscillatory actuator as claimed in claim 2, wherein the number of said first part of feedback channels is two, being the first feedback channel and the second feedback channel; the first side wall channel is provided with a first feedback outlet close to the first outlet; the second side wall channel is provided with a second feedback outlet close to the second outlet; the first part inlet is communicated with a first feedback return port and a second feedback return port, and the first feedback outlet is communicated with the first feedback return port through the first feedback channel; the second feedback outlet is communicated with the second feedback port through the second feedback channel.
4. A swept pulse type fluid oscillator as claimed in claim 2, wherein the number of said first portion feedback channels is one, and a connection between said first portion inlet and said first and second sidewall channels is provided with a first and second feedback port, said first and second feedback port communicating through said first portion feedback channel.
5. A pulsed swept fluidic oscillator according to claim 1, wherein the first partial fluidic oscillator comprises a first swept fluidic oscillator and a flow divider wedge disposed at an outlet of the first swept fluidic oscillator such that the outlet of the first swept fluidic oscillator is divided into a first outlet and a second outlet, and wherein first and second sidewall channels are formed between left and right sidewalls of the flow divider wedge and left and right inner sidewalls of the outlet of the first swept fluidic oscillator.
6. A swept pulse excitation fluid oscillator as claimed in claim 5, wherein the first swept fluid oscillator includes a first flow chamber, the first portion of the inlet communicates with the first outlet sequentially through the first flow chamber and the first sidewall passage, and the first portion of the inlet communicates with the second outlet sequentially through the first flow chamber and the second sidewall passage.
7. A swept pulse oscillatory actuator as claimed in claim 6, wherein the number of said first part of feedback channels is two, being a first feedback channel and a second feedback channel, respectively, said first flow chamber having a first feedback outlet and a second feedback outlet adjacent to the outlet thereof, said first flow chamber having a first feedback port and a second feedback port adjacent to the inlet thereof; the first feedback outlet is communicated with the first feedback port through the first feedback channel; the second feedback outlet is communicated with the second feedback port through the second feedback channel.
8. A swept pulse oscillatory actuator as claimed in any one of claims 1 to 7, wherein the second part of the fluidic oscillator comprises a second swept fluidic oscillator comprising a second flow chamber, the second part inlet communicating with the second part outlet via the second flow chamber;
the number of the second part of feedback channels is two, the second part of feedback channels are respectively a third feedback channel and a fourth feedback channel, a third feedback outlet and a fourth feedback outlet are arranged at the position, close to the outlet, of the second flow chamber, and a third feedback return port and a fourth feedback return port are arranged at the position, close to the inlet, of the second flow chamber; the third feedback outlet is communicated with the third feedback port through the third feedback channel; the fourth feedback outlet is communicated with the fourth feedback port through the fourth feedback channel.
9. A swept pulse oscillatory actuator as claimed in any one of claims 1 to 7, wherein the first partial fluidic oscillator has an oscillation frequency of f1 and the second partial fluidic oscillator has an oscillation frequency of f2, where f1 ≦ f 2/2.
10. A swept pulse oscillatory actuator as claimed in any one of claims 1 to 7, wherein the length of the feedback path of the first portion is L1 and the length of the feedback path of the second portion is L2, where L1 is 2 x L2.
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| CN113019789B (en) * | 2021-03-19 | 2022-02-15 | 大连理工大学 | Wall-separating type feedback jet oscillator |
| CN113294122B (en) * | 2021-05-07 | 2022-10-28 | 中海油田服务股份有限公司 | Oscillating jet element and oscillating jet device |
| CN113280366B (en) * | 2021-05-13 | 2022-09-27 | 中国航空发动机研究院 | Afterburner structure based on self-excitation sweep oscillation fuel nozzle |
| CN113294262A (en) * | 2021-07-08 | 2021-08-24 | 中国航空发动机研究院 | Vector spray pipe based on self-excitation sweep oscillation jet flow |
| CN113389654A (en) * | 2021-07-20 | 2021-09-14 | 中国航空发动机研究院 | Vector spray pipe based on self-excitation pulse oscillation jet flow |
| CN114136583A (en) * | 2021-11-29 | 2022-03-04 | 中国人民解放军国防科技大学 | Zero-energy-consumption oscillating jet actuator for high-speed flow field control |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009150663A1 (en) * | 2008-06-10 | 2009-12-17 | Avinash Shrikrishna Vaidya | Fluidic oscillator flow meter |
| CN102209884A (en) * | 2008-09-12 | 2011-10-05 | 埃尔斯特计量有限公司 | Bi-directional fluidic oscillator flow meter |
| CN106368609A (en) * | 2016-11-09 | 2017-02-01 | 西南石油大学 | Jet flow oscillating tool |
| CN107743422A (en) * | 2015-06-08 | 2018-02-27 | 流体动力有限公司 | Fluidic oscillator |
| CN110963021A (en) * | 2018-09-28 | 2020-04-07 | 空中客车运作有限责任公司 | Flow conductor for an aircraft |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040244498A1 (en) * | 2003-06-06 | 2004-12-09 | Industrial Technology Research Institute | Fluid flow meter with fluid flow sensor and oscillation sensor |
-
2020
- 2020-06-04 CN CN202010501136.6A patent/CN111623010B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009150663A1 (en) * | 2008-06-10 | 2009-12-17 | Avinash Shrikrishna Vaidya | Fluidic oscillator flow meter |
| CN102209884A (en) * | 2008-09-12 | 2011-10-05 | 埃尔斯特计量有限公司 | Bi-directional fluidic oscillator flow meter |
| CN107743422A (en) * | 2015-06-08 | 2018-02-27 | 流体动力有限公司 | Fluidic oscillator |
| CN106368609A (en) * | 2016-11-09 | 2017-02-01 | 西南石油大学 | Jet flow oscillating tool |
| CN110963021A (en) * | 2018-09-28 | 2020-04-07 | 空中客车运作有限责任公司 | Flow conductor for an aircraft |
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