CN109578350A - A kind of multifrequency pulse fluidic generator - Google Patents
A kind of multifrequency pulse fluidic generator Download PDFInfo
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- CN109578350A CN109578350A CN201910153724.2A CN201910153724A CN109578350A CN 109578350 A CN109578350 A CN 109578350A CN 201910153724 A CN201910153724 A CN 201910153724A CN 109578350 A CN109578350 A CN 109578350A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/06—Servomotor systems without provision for follow-up action; Circuits therefor involving features specific to the use of a compressible medium, e.g. air, steam
- F15B11/064—Servomotor systems without provision for follow-up action; Circuits therefor involving features specific to the use of a compressible medium, e.g. air, steam with devices for saving the compressible medium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/021—Valves for interconnecting the fluid chambers of an actuator
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/12—Fluid oscillators or pulse generators
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/18—Arrangements for supervising or controlling working operations for measuring the quantity of conveyed product
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/20—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow
- G01F1/32—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow using swirl flowmeters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/17—Mechanical parametric or variational design
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/40—Flow control
- F15B2211/405—Flow control characterised by the type of flow control means or valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/40—Flow control
- F15B2211/405—Flow control characterised by the type of flow control means or valve
- F15B2211/40576—Assemblies of multiple valves
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- General Engineering & Computer Science (AREA)
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- General Physics & Mathematics (AREA)
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Abstract
The present invention provides a kind of multifrequency pulse fluidic generators, are disposed with along air circulation path and provide the impulse electromagnetic valve of the gas source module of air-flow, the valve control module of adjusting gas flow, the flow measurement module of detection gas flow and transmitting air-flow for system；The impulse electromagnetic valve communication link is connected to one and can generate different frequency pulse signal and control the signal generating module of impulse electromagnetic valve opening and closing.The advantages of multifrequency pulse fluidic generator provided by the invention, is: signal generating module and impulse electromagnetic valve are used cooperatively, by the frequency for changing the pulse signal that signal generating module generates, so as to provide the pulsing jet of different frequency, structure is simple, easy to use；And whole system is stable, noise is small, adjustment frequency is convenient, is suitble to promote the use of.
Description
Technical field
The present invention relates to energy source and power equipment technical field more particularly to a kind of multifrequency pulse fluidic generators.
Background technique
Jet impulse is a kind of effective method for strengthening localized heat transfer or mass transfer, since it directly impacts cooled or adds
The wall surface of heat, can form very thin boundary layer on wall surface, to make directly to be generated very strong heat transfer by the region impacted
Mass transfer effect.Impact jet flow at present is widely used in many engineering fields, dry such as textile and paper
Dry, glass tempering, the cooling of steel and heating, aircraft wing deicing, the cooling of aero engine turbine blades and for electricity
The cooling etc. of subcomponent.The research of impact jet flow augmentation of heat transfer to the energy-saving run important in inhibiting of these industrial process, because
And people have carried out extensive research to impact jet flow in past many decades.
At the same time, with the development of field of energy source power, higher demand is proposed to the reinforcing cooling of high-temperature component.
New model of the pulsing jet as enhanced heat exchange, was also widely studied in recent years.It is some studies have shown that pulsing jet be more than it is a certain
When frequency, heat transfer effect is can be enhanced in pulsing jet.For the ease of studying the relationship of heat transfer effect and pulse frequency, it is desirable to be able to
The pulsing jet generating device of multi-frequency is provided.
Chinese patent application CN106040476A discloses a kind of active control device for shaking jet stream, is penetrated by earthquake
Exciting unit is added in stream device, realizes the macro adjustments and controls for carrying out broad range to the frequency of self-oscillation jet stream, but due to
The complexity of self-excited oscillation pulsed water jet flow field and its ejection jet stream are affected by many factors, and are difficult to penetrating under different parameters
Fluidity can make unified evaluation, therefore mainly for the relationship of non-self-excited oscillation pulsed water jet research thermal effect and pulse frequency,
In pulse signal generating system in the prior art, overseas equipment and instrument are directly used mostly, needs higher cost, and
System is relative complex, and the design for being directed to the intelligent pulse jet flow generating apparatus simply easily manipulated not yet starts.
Summary of the invention
Technical problem to be solved by the present invention lies in provide one kind and can generate the non-self-excited oscillation pulse of different frequency to penetrate
The generator of stream.
The present invention is to solve above-mentioned technical problem by the following technical programs.
A kind of multifrequency pulse fluidic generator is disposed with along air circulation path and provides the gas source mould of air-flow for system
Block, the valve control module of adjusting gas flow, detection gas flow flow measurement module and emit air-flow pulse electromagnetic
Valve；The impulse electromagnetic valve communication link is connected to one and can generate different frequency pulse signal and control the letter of impulse electromagnetic valve opening and closing
Number occur module.
Preferably, the gas source module includes the oil water separator of air compressor and the filtering intracorporal steam of gas.
Preferably, the gas source module further includes being set to oil water separator downstream and being capable of stabilizing gas flow regime
Pressure stabilizing cavity.
Preferably, the valve control module includes at least one control valve being set on air pipeline, the control
Valve downstream processed is connected with a bypass line being directly connected to atmosphere, is provided with a drain tap in the bypass line.
Preferably, on the air pipeline setting there are two control valve, be provided between two control valves one with it is empty
The muffler of feed channel connection, muffler pipe road are additionally provided with a noise reduction valve.
Preferably, the flow measurement module includes the pressure sensor set gradually along air flow path, vortex-shedding meter
The controller of pressure sensor, vortex-shedding meter and temperature sensor numerical value, controller are acquired with temperature sensor and respectively
When judging the air accumulation between temperature sensor and impulse electromagnetic valve to preset value, signal generating module mentions for impulse electromagnetic valve
For pulse signal.
Preferably, the air quality flow between temperature sensor and impulse electromagnetic valveCalculation method it is as follows:
Wherein,For air-flow actual density at vortex-shedding meter,For flux of vortex street count value,For pressure sensor numerical value,
For temperature sensor numerical value,For standard air density,For the corresponding air pressure, that is, standard atmospheric pressure of standard air density,
For the corresponding temperature of standard air density.
Preferably, the temperature sensor downstream is additionally provided with a transient flow meter, the transient flow meter and controller
Communication connection.
Preferably, the signal generating module includes PLC controller, driving unit and parameter set unit, the parameter
The signal output end of setting unit and the signal input part of PLC controller communicate to connect, the signal output end of PLC controller and drive
The signal input part of moving cell communicates to connect, the signal output end of driving unit and the signal input part communication link of impulse electromagnetic valve
It connects, by parameter set unit to the parameter of PLC controller input pulse signal, PLC controller generates special according to input parameter
Determine the pwm pulse signal of frequency and be transferred to driving unit, drive module controls opening for impulse electromagnetic valve according to pwm pulse signal
It closes.
Preferably, the controller of the flow measurement module and the parameter set unit of signal generating module are integrated in same
In PC machine.
The advantages of multifrequency pulse fluidic generator provided by the invention, is: signal generating module and impulse electromagnetic valve are matched
It closes and uses, by changing the frequency for the pulse signal that signal generating module generates, penetrated so as to provide the pulse of different frequency
Stream, structure is simple, easy to use；And whole system is stable, noise is small, adjustment frequency is convenient, is suitble to promote the use of.
Detailed description of the invention
Fig. 1 is the schematic diagram of multifrequency pulse fluidic generator provided by the embodiment of the present invention.
Fig. 2 is the schematic diagram of valve control module provided by the embodiment of the present invention.
Fig. 3 is the schematic diagram of flow measurement module provided by the embodiment of the present invention.
Fig. 4 is the schematic diagram of signal generating module provided by the embodiment of the present invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
Attached drawing, the present invention is described in further detail.
As shown in Figure 1, present embodiments providing a kind of multifrequency pulse fluidic generator, set gradually along air circulation path
Promising system provides the flow survey of the gas source module 1 of air-flow, the valve control module 2 of adjusting gas flow, detection gas flow
It measures module 3 and emits the impulse electromagnetic valve 4 of air-flow, 4 communication link of impulse electromagnetic valve, which is connected to one, can generate different frequency arteries and veins
It rushes signal and controls the signal generating module 5 of the opening and closing of impulse electromagnetic valve 4；When in use, air-flow is introduced by gas source module 1, led to
Overcurrent measurement module 3 obtains the throughput accumulated before impulse electromagnetic valve 4, and when throughput reaches preset value, signal occurs
Module 5 generates the pulse signal of a certain specific frequency, and controls impulse electromagnetic valve 4 according to the pulse signal closure or openness, from
And the pulsing jet of a certain specific frequency is provided, the input parameter of module occurs by artificial adjustment signal, i.e., changeable pulse
The frequency of signal is realized that the generator provided through this embodiment generates the purpose of the pulsing jet of different frequency, can be applied
Under different scenes, the relationship for the heat transfer effect of the frequency of research pulsing jet is provided convenience.
The gas source module 1 includes the air compressor 11 set gradually along air circulation path, 13 and of oil water separator
Pressure stabilizing cavity 12, the air compressor 11 introduce a gas into pipeline, and oil water separator 13 falls the steam transition in air, gas
Body enters 12 adjustment state of pressure stabilizing cavity, makes air Uniform Flow in system, and pressure stabilizing cavity 12 described in preferred embodiment is section
For the cavity of long waist type, then it is specifically used when, can according to need and set other structures for pressure stabilizing cavity 12.
With reference to Fig. 2, the valve control module 2 includes that at least one is set to the control valve in air pipeline (not shown)
Door 21,21 upstream of the control valve are connected with a bypass line 22 being directly connected to atmosphere, set in the bypass line 22
It is equipped with a drain tap 23, when control valve 21 is closed, extra gas can be discharged by bypass line 22, in system
Pressure is excessive, damages air pipeline.
There are two concatenated control valves 21 for setting on air pipeline in preferred embodiment, thus more precise control gas
Flow, when control valve 21 is not exclusively opened, air velocity be will increase, in order to reduce air-flow and pipe friction noise, at two
It is also connected with a muffler 24 between control valve 21, a noise reduction valve 25 is provided on muffler, by adjusting noise reduction valve
25, excessive gas can be allowed to be discharged from 24 place branch of muffler and reduce the noise of whole system.It is described in preferred embodiment
Control valve 21, drain tap 23, noise reduction valve 25 select ball valve.
With reference to Fig. 3, the flow measurement module 3 includes the pressure sensor 31 set gradually along air flow path, vortex street stream
Meter 32 and temperature sensor 33, and pressure sensor 31,33 numerical value of vortex-shedding meter 32 and temperature sensor are acquired respectively
Controller (not shown) the numerical value of each instrument is obtained to calculate temperature sensor 33 and arteries and veins by controller at work
The air quality flow between solenoid valve 4 is rushed, when air quality flow reaches preset value, signal generating module 5 is pulse electricity
Magnet valve 4 provides pulse signal.Calculate air quality flowMethod are as follows:
Wherein,For air-flow actual density at vortex-shedding meter,For flux of vortex street count value,For pressure sensor numerical value,For
Temperature sensor numerical value,For standard air density,For the corresponding air pressure, that is, standard atmospheric pressure of standard air density,For mark
The corresponding temperature of quasi- atmospheric density；In specific calculate,,,。
The temperature sensor downstream can also be arranged a transient flow meter 34, the transient flow meter 34 equally with control
Device communicates to connect and provides variable for controller, by vortex-shedding meter 32 and transient flow meter 34, while in Acquisition channel
Steady state flow and transient flow, and be mutually authenticated, user can be reminded in time when there is notable difference, it is ensured that flow
Measurement module 3 obtains accurate metric results.
Since pulsing jet is mainly used for exchanging heat, so the gas to circulate in system is possible to superhigh temperature or ultralow temperature occur
The case where, the generally requiring for each instrument selected in the present embodiment can work normally at -55 ~ 120 DEG C, the temperature sensor
It is used cooperatively using K-type thermocouple and temperature polling instrument, the response time of the transient flow meter 34 is 10 Milliseconds.
With reference to Fig. 4, the signal generating module 5 includes PLC controller 51, driving unit 52 and parameter set unit (figure
Do not show), the signal output end of the parameter set unit and the signal input part of PLC controller 51 communicate to connect, PLC controller
51 signal output end and the signal input part of driving unit 52 communicate to connect, the signal output end of driving unit 52 and pulse electricity
The signal input part of magnet valve 4 communicates to connect, and user passes through ginseng of the parameter set unit to 51 input pulse signal of PLC controller
Number, PLC controller 51 generate the pwm pulse signal of specific frequency according to input parameter and are transferred to driving unit 52, and driving is single
Member 52 controls the opening and closing of impulse electromagnetic valve 4 according to pwm pulse signal, to will accumulate in the gas release at impulse electromagnetic valve 4
Out, the pulsing jet of specific frequency is generated.
In order to adapt to the work under multi-frequency, high level and low electricity are realized using high resistance in the driving unit 52
Switching between flat；The pwm signal that driving unit 52 generates PLC controller 51 amplifies, and control impulse electromagnetic valve 4 is quickly opened
It closes, it is the high-speed electromagnetic valve of 10 Milliseconds that impulse electromagnetic valve described in preferred embodiment, which selects the power on/off reaction time,.
When in use, the air quality flow calculated is fed back to signal generating module 5 in time by controller needs,
The cumulant of air reaches timely enabling signal when requirement and occurs module 5, in preferred embodiment, by controller and parameter setting list
Member is integrated in a PC machine 53, to easily realize the communication of controller and parameter set unit, flexibility is high, operation
It is convenient.
The air pulse stability of pulsing jet generator provided in this embodiment is high, controllability is strong, the pulse frequency provided
Rate is wide, and the reinforcing that can be widely applied for the components such as papermaking textile industry, metal manufacturing, source of mechanical energy industry or electronic component is changed
In heat, enhanced heat exchange technology can be improved to a certain extent, open new page for enhanced heat exchange field.
Claims (10)
1. a kind of multifrequency pulse fluidic generator, it is characterised in that: be disposed with along air circulation path and provide gas for system
The gas source module of stream, the valve control module of adjusting gas flow, the flow measurement module of detection gas flow and transmitting air-flow
Impulse electromagnetic valve；The impulse electromagnetic valve communication link is connected to one and can generate different frequency pulse signal and control pulse electromagnetic
The signal generating module of valve opening and closing.
2. a kind of multifrequency pulse fluidic generator according to claim 1, it is characterised in that: the gas source module includes sky
The oil water separator of air compressor and the filtering intracorporal steam of gas.
3. a kind of multifrequency pulse fluidic generator according to claim 2, it is characterised in that: the gas source module further includes
It is set to oil water separator downstream and is capable of the pressure stabilizing cavity of stabilizing gas flow regime.
4. a kind of multifrequency pulse fluidic generator according to claim 1, it is characterised in that: the valve control module packet
Include at least one control valve being set on air pipeline, the control valve upstream is connected with one and is directly connected to atmosphere
Bypass line is provided with a drain tap in the bypass line.
5. a kind of multifrequency pulse fluidic generator according to claim 4, it is characterised in that: be arranged on the air pipeline
There are two control valve, a muffler being connected to air pipeline is provided between two control valves, muffler pipe road is also
It is provided with a noise reduction valve.
6. a kind of multifrequency pulse fluidic generator according to claim 4, it is characterised in that: the flow measurement module packet
It includes pressure sensor, vortex-shedding meter and the temperature sensor set gradually along air flow path and acquires pressure sensing respectively
The controller of device, vortex-shedding meter and temperature sensor numerical value, controller judge between temperature sensor and impulse electromagnetic valve
When air accumulation is to preset value, signal generating module provides pulse signal for impulse electromagnetic valve.
7. a kind of multifrequency pulse fluidic generator according to claim 6, it is characterised in that: temperature sensor and pulse electricity
Air quality flow between magnet valveCalculation method it is as follows:
Wherein,For air-flow actual density at vortex-shedding meter,For flux of vortex street count value,For pressure sensor numerical value,
For temperature sensor numerical value,For standard air density,For the corresponding air pressure, that is, standard atmospheric pressure of standard air density,
For the corresponding temperature of standard air density.
8. a kind of multifrequency pulse fluidic generator according to claim 6, it is characterised in that: the temperature sensor downstream
It is additionally provided with a transient flow meter, the transient flow meter and controller communicate to connect.
9. a kind of multifrequency pulse fluidic generator according to claim 6, it is characterised in that: the signal generating module packet
Include PLC controller, driving unit and parameter set unit, the signal output end of the parameter set unit and PLC controller
Signal input part communication connection, the signal output end of PLC controller and the signal input part of driving unit communicate to connect, and driving is single
The signal output end of member and the signal input part of impulse electromagnetic valve communicate to connect, defeated to PLC controller by parameter set unit
Enter the parameter of pulse signal, PLC controller generates the pwm pulse signal of specific frequency according to input parameter and is transferred to driving list
Member, drive module control the opening and closing of impulse electromagnetic valve according to pwm pulse signal.
10. a kind of multifrequency pulse fluidic generator according to claim 9, it is characterised in that: the flow measurement module
Controller and the parameter set unit of signal generating module be integrated in same PC machine.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910153724.2A CN109578350A (en) | 2019-03-01 | 2019-03-01 | A kind of multifrequency pulse fluidic generator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910153724.2A CN109578350A (en) | 2019-03-01 | 2019-03-01 | A kind of multifrequency pulse fluidic generator |
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| CN201910153724.2A Pending CN109578350A (en) | 2019-03-01 | 2019-03-01 | A kind of multifrequency pulse fluidic generator |
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Cited By (4)
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| CN113495010A (en) * | 2020-03-20 | 2021-10-12 | 上海微电子装备（集团）股份有限公司 | Disturbance force generating device and method |
| CN114802771A (en) * | 2022-05-12 | 2022-07-29 | 山东大学 | Wing deicing device based on water hammer effect and working method |
| EP4059774A1 (en) * | 2021-03-15 | 2022-09-21 | Alfmeier Präzision SE | Valve, valve arrangement and seat comfort system |
| US11920571B2 (en) | 2021-03-15 | 2024-03-05 | Alfmeier Präzision SE | Circuit arrangement and method to control at least one valve, valve, valve arrangement and seat comfort system |
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| CN113495010A (en) * | 2020-03-20 | 2021-10-12 | 上海微电子装备（集团）股份有限公司 | Disturbance force generating device and method |
| EP4059774A1 (en) * | 2021-03-15 | 2022-09-21 | Alfmeier Präzision SE | Valve, valve arrangement and seat comfort system |
| US11794610B2 (en) | 2021-03-15 | 2023-10-24 | Alfmeier Präzision SE | Valve, valve assembly, and seat comfort system |
| US11920571B2 (en) | 2021-03-15 | 2024-03-05 | Alfmeier Präzision SE | Circuit arrangement and method to control at least one valve, valve, valve arrangement and seat comfort system |
| CN114802771A (en) * | 2022-05-12 | 2022-07-29 | 山东大学 | Wing deicing device based on water hammer effect and working method |
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