CN209148026U - A kind of pore characteristics experimental provision - Google Patents
A kind of pore characteristics experimental provision Download PDFInfo
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- CN209148026U CN209148026U CN201821684272.8U CN201821684272U CN209148026U CN 209148026 U CN209148026 U CN 209148026U CN 201821684272 U CN201821684272 U CN 201821684272U CN 209148026 U CN209148026 U CN 209148026U
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Abstract
The utility model discloses a kind of pore characteristics experimental provisions, belong to solenoid valve detection technique field.It include: computer measurement and control system and fuel tank and its attachment two-way communication link, computer measurement and control system is connect with pump group one-way communication, computer measurement and control system is connect with pressure regulation valve group one-way communication, computer measurement and control system is connect with back pressure valve group one-way communication, and test fixture is connect with computer measurement and control system one-way communication；Fuel tank and its attachment and pump group pass through pipeline connection, pump group passes through pipeline connection with pressure regulation valve group, test fixture respectively, by pipeline connection, test fixture passes through pipeline connection by pipeline connection, back pressure valve group and fuel tank and its attachment with back pressure valve group for pressure regulation valve group and fuel tank and its attachment.A kind of pore characteristics experimental provision provided by the utility model can obtain aperture discharge coefficient and flow velocity attribute, the judgment basis as fluid parameter.
Description
Technical field
The utility model relates to solenoid valve detection technique fields, are specifically related to a kind of pore characteristics experimental provision.
Background technique
The association attributes in transmission device in terms of the fluid of electro-hydraulic manipulation buffer element are difficult to measure at present, or measurement hand
Section is complex, judges that trimmer valve hydraulic power, Reynolds number and oil liquid fluidised form are not accurate enough.
Utility model content
For the above-mentioned problems in the prior art, it is desirable to provide a kind of pore characteristics experimental provision is small by obtaining
Hole discharge coefficient and flow velocity attribute, as trimmer valve hydraulic power, Reynolds number, oil liquid fluidised form judgment basis.
Specific technical solution is as follows:
A kind of pore characteristics experimental provision, comprising: computer measurement and control system, fuel tank and its attachment, pump group, test fixture,
Pressure regulation valve group and back pressure valve group, wherein computer measurement and control system and fuel tank and its attachment two-way communication link, computer measurement and control
System is connect with pump group one-way communication, and computer measurement and control system is connect with pressure regulation valve group one-way communication, computer measurement and control system with
The connection of back pressure valve group one-way communication, test fixture are connect with computer measurement and control system one-way communication；
By pipeline connection, pump group is connected with pressure regulation valve group, test fixture by pipeline respectively for fuel tank and its attachment and pump group
Logical, pressure regulation valve group and fuel tank and its attachment pass through pipeline connection, back pressure valve group by pipeline connection, test fixture and back pressure valve group
With fuel tank and its attachment by pipeline connection, wherein fuel tank and its attachment, pump group and pressure regulation valve group constitute a loop, fuel tank
And its attachment, pump group, test fixture and back pressure valve group constitute another loop.
In a kind of above-mentioned pore characteristics experimental provision, also have the feature that, fuel tank and its attachment include: fuel tank,
Heater, stainless steel ball valve one, ball valve, liquidometer, air cleaner, temperature sensor and oil absorption filter screen, the bottom of fuel tank
Several heaters are provided with, the unloading port of fuel tank is provided with stainless steel ball valve one, and the inlet port of fuel tank is provided with oil absorption filter screen,
Air cleaner is arranged in the upper surface of fuel tank, and temperature sensor is contacted with the oil liquid in fuel tank, and temperature sensor and calculating
Machine TT&C system communication connection, the side of fuel tank are provided with liquidometer, and several ball valves, and liquid are provided between liquidometer and fuel tank
Position meter and computer measurement and control system communication connection.
It in a kind of above-mentioned pore characteristics experimental provision, also has the feature that, pump group includes butterfly valve, screw pump, change
Frequency motor, frequency converter, overflow valve, check valve and filter, frequency converter and computer measurement and control system communication connection, frequency converter with
Variable-frequency motor electrical connection, variable-frequency motor are electrically connected with screw pump, and the oil inlet end of screw pump and the inlet port of fuel tank are connected by pipeline
It is logical, be additionally provided with butterfly valve between screw pump and the inlet port of fuel tank, the oil outlet of screw pump also respectively with the oil inlet end of check valve,
The oil inlet end of overflow valve is also connected to fuel tank by pipeline connection, the oil outlet of overflow valve, the oil outlet and filter of check valve
Pass through pipeline connection.
In a kind of above-mentioned pore characteristics experimental provision, also have the feature that, pressure regulation valve group includes proportional pressure control valve
One and throttle valve one, filter be connected to respectively with the oil inlet end of proportional pressure control valve one, throttle valve one, proportional pressure control valve one, throttling
The oil outlet of valve one is connected to fuel tank respectively, computer measurement and control system respectively with proportional pressure control valve one, one one-way communication of throttle valve
Connection.
In a kind of above-mentioned pore characteristics experimental provision, also have the feature that, filter respectively with solenoid valve one
Oil inlet end, solenoid valve two oil inlet end by pipeline connection, the oil outlet of solenoid valve one, the oil outlet of solenoid valve two respectively with survey
Trial work load is logical, and flowmeter one is provided between solenoid valve one and test fixture, is provided between solenoid valve two and test fixture
Flowmeter two, computer measurement and control system are connect with solenoid valve one, two one-way communication of solenoid valve respectively, test fixture, flowmeter one,
Flowmeter two is connect with computer measurement and control system one-way communication respectively.
In a kind of above-mentioned pore characteristics experimental provision, also have the feature that, back pressure valve group includes proportional pressure control valve
Two and throttle valve two, test fixture respectively with the oil inlet end of the oil inlet end of proportional pressure control valve two, throttle valve two by pipeline connection,
The oil outlet of proportional pressure control valve two, the oil outlet of throttle valve two are connected to fuel tank respectively, computer measurement and control system respectively with ratio
Overflow valve two, the connection of two one-way communication of throttle valve.
In a kind of above-mentioned pore characteristics experimental provision, also has the feature that, set between filter and solenoid valve one
It is equipped with pressure measuring tie-in one, pressure measuring tie-in one is connected to by surveying pressure hose with a high temperature resistant pressure gauge, pressure measuring tie-in one and computer
The connection of TT&C system one-way communication.
In a kind of above-mentioned pore characteristics experimental provision, also have the feature that, filter and proportional pressure control valve one it
Between be provided with pressure measuring tie-in two, pressure measuring tie-in two is connect with computer measurement and control system one-way communication.
In a kind of above-mentioned pore characteristics experimental provision, also have the feature that, between flowmeter one and test fixture
Be provided with pressure sensor one, be additionally provided with stainless steel ball valve four between pressure sensor one and test fixture, test fixture with
It is provided with pressure sensor two between proportional pressure control valve two, is additionally provided with stainless steel ball between pressure sensor two and test fixture
Valve two, pressure sensor one, pressure sensor two are connect with computer measurement and control system one-way communication respectively.
In a kind of above-mentioned pore characteristics experimental provision, also have the feature that, pressure sensor one and stainless steel ball
Pipeline between valve four is additionally provided with pressure measuring tie-in three, is additionally provided with stainless steel ball between pressure sensor one and pressure measuring tie-in three
Valve three, pressure measuring tie-in three are connect with computer measurement and control system one-way communication.
The good effect of above-mentioned technical proposal is:
In a kind of pore characteristics experimental provision provided by the utility model, the electro-hydraulic manipulation trimmer valve throttling of different form is obtained
The flow velocity and discharge coefficient of mouth intend the trimmer valve restriction stream by constructing high-precision, low pulse, small flow, temperature-controllable
Amount-differential pressure characteristics test macro, to obtain aperture discharge coefficient and flow velocity attribute, as trimmer valve hydraulic power, Reynolds number,
The judgment basis of oil liquid fluidised form.
Detailed description of the invention
Fig. 1 is the circuit connection in a kind of embodiment of pore characteristics experimental provision of the utility model between each component
Figure；
Fig. 2 is the piping connection in a kind of embodiment of pore characteristics experimental provision of the utility model between each component
Figure；
Fig. 3 is hydraulic schematic diagram in a kind of embodiment of pore characteristics experimental provision of the utility model.
In attached drawing: 1, fuel tank；2, heater；3a, stainless steel ball valve one；3b, stainless steel ball valve two；3c, stainless steel ball valve
Three；3d, stainless steel ball valve four；4, ball valve；5, liquidometer；6, air cleaner；7, temperature sensor；8, oil absorption filter screen；9, butterfly
Valve；10, screw pump；11, variable-frequency motor；12, frequency converter；13, overflow valve；14, check valve；15, filter；16a, pressure measuring tie-in
One；16b, pressure measuring tie-in two；16c, pressure measuring tie-in three；17, pressure hose is surveyed；18, high temperature resistant pressure gauge；19, temperature sensor；
20, solenoid valve one；21, solenoid valve two；22, flowmeter one；23, flowmeter two；24a, pressure sensor one；24b, pressure sensing
Device two；25a, proportional pressure control valve one；25b, proportional pressure control valve two；26a, throttle valve one；26b, throttle valve two.
A: fuel tank and its attachment；B: pump group；C: pressure regulation valve group；D: test fixture；E: back pressure valve group；F: computer measurement and control system
System.
Specific embodiment
In order to be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, with
Lower embodiment combination attached drawing 1 is specifically addressed a kind of pore characteristics experimental provision provided by the utility model to attached drawing 3.
Computer measurement and control system F and fuel tank and its attachment A two-way communication link, computer measurement and control system F and pump group B are unidirectional
Communication connection, computer measurement and control system F are connect with pressure regulation valve group C one-way communication, and computer measurement and control system F and back pressure valve group E are mono-
To communication connection, test fixture D is connect with computer measurement and control system F one-way communication；Fuel tank and its attachment A and pump group B pass through pipe
Road connection, pump group B are logical by pipeline connection, pressure regulation valve group C and fuel tank and its attachment A with pressure regulation valve group C, test fixture D respectively
It crosses pipeline connection, test fixture D and back pressure valve group E and pipeline is passed through by pipeline connection, back pressure valve group E and fuel tank and its attachment A
Connection, wherein fuel tank and its attachment A, pump group B and pressure regulation valve group C constitute a loop, fuel tank and its attachment A, pump group B, survey
Trial work fills D and back pressure valve group E and constitutes another loop.
Wherein fuel tank and its attachment A, which have, provides oil liquid storage, oil liquid heating, liquid level warning, temperature alarming for testing stand
Etc. functions；Pump group B provides pressure and the suitable oil liquid of flow for testing stand.Pressure regulation valve group C provides for test fixture meets pressure
It is required that oil liquid；Test fixture D can test throttling tooling pressure at two ends it is poor, inlet temperature and inlet flow rate；Back pressure valve group E can
With adjustment test bed back pressure, and oil liquid is cooled down；Computer measurement and control system F can control testing stand, and acquire test number
According to carrying out processing analysis, draw chart etc..
In a preferred embodiment, as shown in figure 3, fuel tank and its attachment A include: fuel tank 1, it is heater 2, stainless
One 3a of steel ball valve, ball valve 4, liquidometer 5, air cleaner 6, temperature sensor 7 and oil absorption filter screen 8, the bottom setting of fuel tank 1
There are several heaters 2, the unloading port of fuel tank 1 is provided with one 3a of stainless steel ball valve, and the inlet port of fuel tank 1 is provided with oil absorption filter screen
8, air cleaner 6 is arranged in the upper surface of fuel tank 1, and temperature sensor 7 is contacted with the oil liquid in fuel tank 1, and temperature sensor 7
With computer measurement and control system F communication connection, temperature sensor 7 is uploaded to computer measurement and control system after measuring the oil temperature in fuel tank 1
F, the side of fuel tank 1 are provided with liquidometer 5, and several ball valves 4, and liquidometer 5 and calculating are provided between liquidometer 5 and fuel tank 1
Machine TT&C system F communication connection, liquidometer 5 are uploaded to computer measurement and control system F after measuring the Height of oil in fuel tank 1.
In a preferred embodiment, as shown in figure 3, pump group B include butterfly valve 9, screw pump 10, variable-frequency motor 11,
Frequency converter 12, overflow valve 13, check valve 14 and filter 15, frequency converter 12 and computer measurement and control system F communication connection, frequency conversion
Device 12 is electrically connected with variable-frequency motor 11, and variable-frequency motor 11 is electrically connected with screw pump 10, the suction of the oil inlet end and fuel tank 1 of screw pump 10
Hydraulic fluid port is additionally provided with butterfly valve 9, the oil outlet of screw pump 10 is also by pipeline connection between screw pump 10 and the inlet port of fuel tank 1
Respectively with the oil inlet end of the oil inlet end of check valve 14, overflow valve 13 by pipeline connection, the oil outlet of overflow valve 13 also with fuel tank 1
Connection, for the oil outlet and filter 15 of check valve 14 by pipeline connection, computer measurement and control system F passes through control frequency converter 12
Work is to adjust the revolving speed of variable-frequency motor 11, to control the work of screw pump 10.
In a preferred embodiment, as shown in figure 3, pressure regulation valve group C includes one 25a of proportional pressure control valve and throttle valve
One 26a, filter 15 are connected to the oil inlet end of one 25a of proportional pressure control valve, one 26a of throttle valve respectively, one 25a of proportional pressure control valve,
The oil outlet of one 26a of throttle valve is connected to fuel tank 1 respectively, computer measurement and control system F respectively with one 25a of proportional pressure control valve, throttling
The connection of one 26a one-way communication of valve, computer measurement and control system F control the work of proportional pressure control valve 25a, one 26a of throttle valve.
In a preferred embodiment, as shown in figure 3, filter 15 respectively with the oil inlet end of solenoid valve 1, electricity
The oil inlet end of magnet valve 2 21 by pipeline connection, the oil outlet of solenoid valve 1, the oil outlet of solenoid valve 2 21 respectively with test
Tooling D connection, is provided with flowmeter 1, between solenoid valve 2 21 and test fixture D between solenoid valve 1 and test fixture D
It is provided with flowmeter 2 23, computer measurement and control system F is connect with solenoid valve 1,2 21 one-way communication of solenoid valve respectively, is calculated
Machine TT&C system F controls the energization situation of solenoid valve 1, solenoid valve 2 21, test fixture D, flowmeter 1, flowmeter two
23 connect with computer measurement and control system F one-way communication respectively, and test fixture D and flowmeter extremely calculate the data feedback measured
Machine TT&C system F when test, is equipped with different types of trimmer valve in test fixture D.
In a preferred embodiment, as shown in figure 3, back pressure valve group E includes two 25b of proportional pressure control valve and throttle valve
Two 26b, test fixture D pass through pipeline connection with the oil inlet end of the oil inlet end of two 25b of proportional pressure control valve, two 26b of throttle valve respectively,
The oil outlet of two 25b of proportional pressure control valve, the oil outlet of two 26b of throttle valve are connected to fuel tank 1 respectively, and computer measurement and control system F points
It is not connect with two 25b of proportional pressure control valve, two 26b one-way communication of throttle valve, computer measurement and control system F controls proportional pressure control valve two
The work of 25b, two 26b of throttle valve.
In a preferred embodiment, it is crimped as shown in figure 3, being provided with survey between filter 15 and solenoid valve 1
First 16a, one 16a of pressure measuring tie-in are connected to by surveying pressure hose 17 with a high temperature resistant pressure gauge 18, one 16a of pressure measuring tie-in and calculating
The connection of machine TT&C system F one-way communication, one 16a of pressure measuring tie-in is by the data feedback measured to computer measurement and control system F.
In a preferred embodiment, as shown in figure 3, being provided between one 25a of filter 15 and proportional pressure control valve
Two 16b of pressure measuring tie-in, two 16b of pressure measuring tie-in are connect with computer measurement and control system F one-way communication, and two 16b of pressure measuring tie-in will be measured
Data feedback to computer measurement and control system F.
In a preferred embodiment, as shown in figure 3, being provided with pressure between flowmeter 1 and test fixture D
One 24a of sensor, is additionally provided with four 3d of stainless steel ball valve between pressure sensor one 24a and test fixture D, test fixture D with
It is provided with two 24b of pressure sensor between two 25b of proportional pressure control valve, is also set up between pressure sensor two 24b and test fixture D
Have two 3b of stainless steel ball valve, one 24a of pressure sensor, two 24b of pressure sensor respectively with computer measurement and control system F one-way communication
Pressure data at respective position is fed back to computer measurement and control system by connection, pressure sensor 1 and two 24b of pressure sensor
Unite F.
In a preferred embodiment, as shown in figure 3, between four 3d of one 24a of pressure sensor and stainless steel ball valve
Pipeline be additionally provided with three 16c of pressure measuring tie-in, be additionally provided with stainless steel between three 16c of one 24a of pressure sensor and pressure measuring tie-in
Three 3c of ball valve, three 3c of pressure measuring tie-in are connect with computer measurement and control system F one-way communication, and three 3c of pressure measuring tie-in is by the pressure at its position
Force data feeds back to computer measurement and control system F.
Hereinafter, being illustrated with a kind of specific embodiment, it should be pointed out that described in following implementation it
Structure, technique, selection are only to illustrate the feasibility of embodiment, the intention of scope of protection of the utility model that there is no restriction.
A kind of working principle of pore characteristics experimental provision provided in this embodiment: heater is added to oil liquid suitably
Temperature adjusts frequency converter and selects suitable test flow, pass through the flow on test fixture according to different trimmer valve restrictions
Meter can check the flow of system.Then charge oil pressure is adjusted by pressure regulation valve group, passes through the pressure sensor on test fixture
Detecting tool inlet pressure and return oil pressure.Entrance pressure can be accurately adjusted by the throttle valve in pressure regulation valve group and back pressure valve group
Power and return oil pressure.
Technical requirement in experimentation: a) temperature range: 20 DEG C~135 DEG C；B) trimmer valve restriction entrance pressure
Power range: 0~4MPa, pressure controling precision: ± 1bar；Load pressure range: 0~1MPa is exported, pressure controling precision: ±
1bar；C) range of flow: 1~10L/min, 4~40L/min, measuring accuracy ± 0.1L/min；D) oil liquid: 15W/40CD, filtering
Precision 10um.
By obtaining the electro-hydraulic flow velocity and flow for manipulating trimmer valve restriction of different form in the pore characteristics experimental provision
Coefficient intends trimmer valve restriction flow-differential pressure characteristics test by building high-precision, low pulse, small flow, temperature-controllable
System, to obtain aperture discharge coefficient and flow velocity attribute, as trimmer valve hydraulic power, Reynolds number, oil liquid fluidised form judgement according to
According to.
The above is only the utility model preferred embodiments, are not intended to limit the embodiments of the present invention and protection
Range should can appreciate that all with the utility model specification and diagramatic content institute to those skilled in the art
The equivalent replacement made and obviously change obtained scheme, the protection scope of the utility model should all be included in
It is interior.
Claims (10)
1. a kind of pore characteristics experimental provision characterized by comprising computer measurement and control system, fuel tank and its attachment, pump group,
Test fixture, pressure regulation valve group and back pressure valve group, wherein the computer measurement and control system and the fuel tank and its attachment two-way
Letter connection, the computer measurement and control system are connect with the pump group one-way communication, the computer measurement and control system and the pressure regulation
The connection of valve group one-way communication, the computer measurement and control system connect with the back pressure valve group one-way communication, the test fixture and
The computer measurement and control system one-way communication connection；
The fuel tank and its attachment and the pump group by pipeline connection, the pump group respectively with the pressure regulation valve group, the survey
Trial work dress by pipeline connection, the pressure regulation valve group and the fuel tank and its attachment by pipeline connection, the test fixture with
The back pressure valve group passes through pipeline connection by pipeline connection, the back pressure valve group and the fuel tank and its attachment, wherein described
Fuel tank and its attachment, the pump group and the pressure regulation valve group constitute a loop, the fuel tank and its attachment, the pump group,
The test fixture and the back pressure valve group constitute another loop.
2. a kind of pore characteristics experimental provision according to claim 1, which is characterized in that the fuel tank and its attachment packet
It includes: fuel tank, heater, stainless steel ball valve one, ball valve, liquidometer, air cleaner, temperature sensor and oil absorption filter screen, institute
The bottom for stating fuel tank is provided with several heaters, and the unloading port of the fuel tank is provided with the stainless steel ball valve one, and institute
The inlet port for stating fuel tank is provided with oil absorption filter screen, and the air cleaner is arranged in the upper surface of the fuel tank, and the temperature passes
Sensor is contacted with the oil liquid in the fuel tank, and temperature sensor and the computer measurement and control system communication connection, the fuel tank
Side be provided with the liquidometer, several ball valves, and the liquid level are provided between the liquidometer and the fuel tank
Meter and the computer measurement and control system communication connection.
3. a kind of pore characteristics experimental provision according to claim 2, which is characterized in that the pump group includes butterfly valve, spiral shell
Bar pump, variable-frequency motor, frequency converter, overflow valve, check valve and filter, the frequency converter and the computer measurement and control system are logical
News connection, the frequency converter are electrically connected with the variable-frequency motor, and the variable-frequency motor is electrically connected with the screw pump, the screw rod
The inlet port of the oil inlet end of pump and the fuel tank is also set between the screw pump and the inlet port of the fuel tank by pipeline connection
It is equipped with the butterfly valve, the oil outlet of the screw pump also oil inlet end with the oil inlet end of the check valve, the overflow valve respectively
By pipeline connection, the oil outlet of the overflow valve is also connected to the fuel tank, the oil outlet of the check valve and the filtering
Device passes through pipeline connection.
4. a kind of pore characteristics experimental provision according to claim 3, which is characterized in that the pressure regulation valve group includes ratio
Overflow valve one and throttle valve one, the filter are connected to the oil inlet end of the proportional pressure control valve one, the throttle valve one respectively,
The proportional pressure control valve one, the throttle valve one oil outlet be connected to respectively with the fuel tank, the computer measurement and control system point
It is not connect with the proportional pressure control valve one, one one-way communication of the throttle valve.
5. a kind of pore characteristics experimental provision according to claim 4, which is characterized in that the filter respectively with electromagnetism
The oil inlet end of valve one, solenoid valve two oil inlet end by pipeline connection, the oil outlet of the solenoid valve one, the solenoid valve two
Oil outlet is connected to the test fixture respectively, and flowmeter one, institute are provided between the solenoid valve one and the test fixture
State and be provided with flowmeter two between solenoid valve two and the test fixture, the computer measurement and control system respectively with the solenoid valve
One, two one-way communication of solenoid valve connection, the test fixture, the flowmeter one, the flowmeter two respectively with it is described
The connection of computer measurement and control system one-way communication.
6. a kind of pore characteristics experimental provision according to claim 5, which is characterized in that the back pressure valve group includes ratio
Overflow valve two and throttle valve two, the test fixture respectively with the oil inlet end of the proportional pressure control valve two, the throttle valve two
Oil inlet end by pipeline connection, the oil outlet of the proportional pressure control valve two, the oil outlet of the throttle valve two respectively with the oil
Case connection, the computer measurement and control system are connect with the proportional pressure control valve two, two one-way communication of the throttle valve respectively.
7. a kind of pore characteristics experimental provision according to claim 6, which is characterized in that the filter and the electromagnetism
Pressure measuring tie-in one is provided between valve one, the pressure measuring tie-in one is connected to by surveying pressure hose with a high temperature resistant pressure gauge, described
Pressure measuring tie-in one is connect with the computer measurement and control system one-way communication.
8. a kind of pore characteristics experimental provision according to claim 7, which is characterized in that the filter and the ratio
Pressure measuring tie-in two is provided between overflow valve one, the pressure measuring tie-in two is connect with the computer measurement and control system one-way communication.
9. a kind of pore characteristics experimental provision according to claim 8, which is characterized in that the flowmeter one and the survey
It is provided with pressure sensor one between trial work dress, is additionally provided with stainless steel between the pressure sensor one and the test fixture
Ball valve four is provided with pressure sensor two, the pressure sensor two between the test fixture and the proportional pressure control valve two
Stainless steel ball valve two is additionally provided between the test fixture, the pressure sensor one, the pressure sensor two are distinguished
It is connect with the computer measurement and control system one-way communication.
10. a kind of pore characteristics experimental provision according to claim 9, which is characterized in that the pressure sensor one with
Pipeline between the stainless steel ball valve four is additionally provided with pressure measuring tie-in three, the pressure sensor one and the pressure measuring tie-in three
Between be additionally provided with stainless steel ball valve three, the pressure measuring tie-in three is connect with the computer measurement and control system one-way communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821684272.8U CN209148026U (en) | 2018-10-17 | 2018-10-17 | A kind of pore characteristics experimental provision |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821684272.8U CN209148026U (en) | 2018-10-17 | 2018-10-17 | A kind of pore characteristics experimental provision |
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| CN209148026U true CN209148026U (en) | 2019-07-23 |
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| CN201821684272.8U Active CN209148026U (en) | 2018-10-17 | 2018-10-17 | A kind of pore characteristics experimental provision |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022246776A1 (en) * | 2021-05-24 | 2022-12-01 | 无锡职业技术学院 | System and method for testing flow coefficient of electromagnetic proportional valve |
-
2018
- 2018-10-17 CN CN201821684272.8U patent/CN209148026U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022246776A1 (en) * | 2021-05-24 | 2022-12-01 | 无锡职业技术学院 | System and method for testing flow coefficient of electromagnetic proportional valve |
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Address after: 201112 Floor 1, Building 9, No. 333, Wanfang Road, Minhang District, Shanghai Patentee after: Shanghai Shentuo Intelligent Manufacturing Equipment Co.,Ltd. Address before: Room A, 1st Floor, Building 3, No. 515 Shennan Road, Minhang District, Shanghai, 201100 Patentee before: SHANGHAI SHENTUO HYDRAULIC TECHNOLOGY Co.,Ltd. |
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