CN202510268U - Lift testing system for air-assisted atomization oil ejector - Google Patents
Lift testing system for air-assisted atomization oil ejector Download PDFInfo
- Publication number
- CN202510268U CN202510268U CN201220056032XU CN201220056032U CN202510268U CN 202510268 U CN202510268 U CN 202510268U CN 201220056032X U CN201220056032X U CN 201220056032XU CN 201220056032 U CN201220056032 U CN 201220056032U CN 202510268 U CN202510268 U CN 202510268U
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- China
- Prior art keywords
- air
- displacement sensor
- laser displacement
- assisted atomization
- industrial computer
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- 238000012360 testing method Methods 0.000 title claims abstract description 28
- 238000000889 atomisation Methods 0.000 title claims abstract description 23
- 238000006073 displacement reaction Methods 0.000 claims abstract description 40
- 239000000446 fuel Substances 0.000 claims description 25
- 238000000034 method Methods 0.000 abstract description 7
- 238000005259 measurement Methods 0.000 abstract description 6
- 230000004044 response Effects 0.000 abstract description 6
- 239000007921 spray Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229940074869 marquis Drugs 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- VBUNOIXRZNJNAD-UHFFFAOYSA-N ponazuril Chemical compound CC1=CC(N2C(N(C)C(=O)NC2=O)=O)=CC=C1OC1=CC=C(S(=O)(=O)C(F)(F)F)C=C1 VBUNOIXRZNJNAD-UHFFFAOYSA-N 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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Abstract
The utility model discloses a lift testing system for an air-assisted atomization oil ejector. The lift testing system comprises an industrial computer, a data acquisition card, an air pump, an oil ejector driver and a laser displacement sensor, wherein the first output end of the industrial computer is connected with the air pump, the second output end of the industrial computer is connected with the oil ejector driver, the laser displacement sensor is positioned at the lower part of the oil ejector, the output end of the laser displacement sensor is connected with the input end of the data acquisition card, and the output end of the data acquisition card is connected with the input end of the industrial computer. The lift testing system for the air-assisted atomization oil ejector designed by the utility model can complete the measurement of displacement response and speed response of an air-assisted atomization spray nozzle, and has the advantages of high measurement precision, simple and convenient operation method, and stability and reliability in working.
Description
Technical field
The utility model relates to a kind of air-assisted atomization fuel valve lift measuring system, particularly a kind of air-assisted atomization fuel injector magnetic system lift test system.
Background technique
The important parameter that the high-speed electromagnetic valve that is used for the air-assisted atomization oil sprayer, its armature lift motion state and speed of response at work is electric spraying diesel engine.Because armature is positioned at solenoid valve inside, and is a packaged unit.Use conventional test method or measure the imagination of service behaviour of solenoid valve with static mode not feasible.Solenoid valve armature lift is carried out dynamic test, and then require: the testing apparatus that installs additional can not change the working state of former solenoid valve system; Can test the lift variation overall process of solenoid valve real-time working, and very high dynamic response will be arranged.Wuxi prestige in 2004 inspires confidence in group and adopts eddy current sensor to measure the oil sprayer stroke.Permanent magnet need be installed on armature, can exert an influence armature motion.Wuxi Oil Pump Nozzle Inst measured the lift of electric-controlled fuel injector in 2009 with Hall transducer.This scheme need be slotted on the oil sprayer valve rod, the motion state of former solenoid valve has been caused influence, so measuring accuracy is lower.Chinese patent CN97202939.7 utility model patent discloses a kind of solenoid valve measuring device.This device utilizes the piezoelectric crystal force transducer to measure electromagnetic force in real time through measuring mechanism.Use Hall current sensor to measure solenoid current in real time.The electromagnetic force that records and electromagnetic waveforms shown and analyze just can draw its result.The precision that it is tested is subject to result's analysis, and dynamic response is slow, can't record complete transient process fully.Beijing Institute of Technology adopted laser displacement sensor surveyingpin valve stroke in 2010.But need on valve rod, oblique notch, can exert an influence stem movement.U.S. Pat 4667511 adopts optical sensor to measure the valve rod lift, but this method of measurement has higher requirements to installing space.U.S. Pat 20060151628 adopts piezoelectric transducer to measure the valve rod lift, but this method need mount elastically in advance.
The model utility content
The utility model technical problem to be solved provides a kind of measurement and the measuring accuracy height that can accomplish air-assisted atomisation injectors displacement response and speed responsive; Operating method is easy, stable and reliable operation air-assisted atomization fuel valve lift measuring system.
The utility model has adopted following technological scheme in order to solve above-mentioned technical problem: a kind of air-assisted atomization fuel valve lift test system, wherein:
Comprise industrial computer, data collecting card, air pump, fuel injector driver and laser displacement sensor; First output terminal of said industrial computer connects air pump; Second output terminal of said industrial computer is connected with fuel injector driver; Said laser displacement sensor is positioned at the bottom of oil sprayer, and its output terminal is connected with the input end of data collecting card, and the output terminal of data collecting card is connected with the input end of industrial computer.
Optimize structure as a kind of of the utility model: also comprise being used for said laser displacement sensor is fixed in first positioning fixture on ground and is used for said oil sprayer is fixed on second positioning fixture on the wall.
Optimize structure as a kind of of the utility model: said laser displacement sensor is the laser triangulation displacement transducer.
Optimize structure as a kind of of the utility model: said laser displacement sensor top is provided with protection sleeve.
The air-assisted atomization fuel injector magnetic system lift test system that the utility model designed compared with prior art has the following advantages:
(1) the air-assisted atomization fuel injector magnetic system lift test system that the utility model designed need not slotted on valve rod, and measurement component does not impact armature motion.
(2) the air-assisted atomization fuel injector magnetic system lift test system that the utility model designed utilizes laser displacement sensor to measure the armature displacement, and the electromagnetic field that produces in the time of can suppressing high-speed electromagnetic valve work has improved measuring accuracy to the influence of measuring element.
(3) the air-assisted atomization fuel injector magnetic system lift test system that the utility model designed has added protection sleeve in the laser displacement sensor outside, can effectively reduce in the process of the test from the influence to light path of the fuel-air mixture of oil sprayer ejection.
(4) the air-assisted atomization fuel injector magnetic system lift test system that the utility model designed is easy and simple to handle, reliable operation.
Description of drawings
Fig. 1 is a kind of embodiment of the air-assisted atomization fuel injector magnetic system lift test system that the utility model designed.
The 1-protection sleeve, 2-laser displacement sensor, 3-oil sprayer.
Embodiment
Be further described below in conjunction with the embodiment of accompanying drawing the utility model:
As shown in Figure 1; The utility model has designed a kind of air-assisted atomization fuel valve lift test system; Comprise industrial computer, data collecting card, air pump, fuel injector driver and laser displacement sensor; First output terminal of said industrial computer connects air pump, is used to control air pump and imports pressurized air through the oil gas interface to oil sprayer, and second output terminal of said industrial computer is connected with fuel injector driver; And, drive oil sprayer work with the control fuel injector driver to its output control pulse signal; Said laser displacement sensor is positioned at the bottom of oil sprayer, and the displacement signal of detected oil sprayer is transferred to data collecting card, and data collecting card is transferred to industrial computer with the displacement signal that receives again.
When the air-assisted atomization fuel valve lift test that the utility model designed ties up to work; Also designed first positioning fixture that is used for said laser displacement sensor is fixed in ground; With being used for said oil sprayer is fixed on second positioning fixture on the wall; Said first positioning fixture and second positioning fixture can make it reach best test effect according to the different firm laser displacement sensor and the oil sprayer laid of test environment.
In specific embodiment; Said laser displacement sensor is the laser triangulation displacement transducer, and the laser displacement sensor work principle is to utilize the principle of interference Displacement Measurement of laser beam, and laser belongs to Gaussian Spherical Beam; Satisfying the time marquis of specified conditions, can produce interference phenomenon.The displacement that the Microtrak II system laser displacement sensor that laser displacement sensor adopts U.S. MTI company to produce is measured armature, it does not receive the influence of testee Facing material, color and transmitting illuminant, and measuring accuracy is up to 1 μ m.The armature displacement signal that laser displacement sensor measures imports computer into through data collecting card.Wherein, laser displacement sensor image data frequency is 40K, does not lose in order to ensure test data, and data collecting card is used for the sampling rate of displacement data should be greater than 80KHz.
Through investigation, high-speed data acquisition card selects for use the PCI-1712L that grinds magnificent company for best.
In concrete test, in order to reduce light path is impacted from the gas mixture of oil sprayer ejection, in the upper design of said laser displacement sensor a protection sleeve with light path and gas mixture isolation
,Reach best test effect.
Claims (4)
1. air-assisted atomization fuel valve lift test system; It is characterized in that: comprise industrial computer, data collecting card, air pump, fuel injector driver and laser displacement sensor; First output terminal of said industrial computer connects air pump; Second output terminal of said industrial computer is connected with fuel injector driver; Said laser displacement sensor is positioned at the bottom of oil sprayer, and its output terminal is connected with the input end of data collecting card, and the output terminal of data collecting card is connected with the input end of industrial computer.
2. air-assisted atomization fuel valve lift test system according to claim 1; It is characterized in that: also comprise being used for said laser displacement sensor is fixed in first positioning fixture on ground and is used for said oil sprayer is fixed on second positioning fixture on the wall.
3. air-assisted atomization fuel valve lift test system according to claim 1 and 2 is characterized in that: said laser displacement sensor is the laser triangulation displacement transducer.
4. air-assisted atomization fuel valve lift test system according to claim 1 is characterized in that: be provided with protection sleeve between said laser displacement sensor and the oil sprayer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220056032XU CN202510268U (en) | 2012-02-21 | 2012-02-21 | Lift testing system for air-assisted atomization oil ejector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220056032XU CN202510268U (en) | 2012-02-21 | 2012-02-21 | Lift testing system for air-assisted atomization oil ejector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202510268U true CN202510268U (en) | 2012-10-31 |
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ID=47062760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220056032XU Expired - Fee Related CN202510268U (en) | 2012-02-21 | 2012-02-21 | Lift testing system for air-assisted atomization oil ejector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202510268U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588179A (en) * | 2012-02-21 | 2012-07-18 | 南京航空航天大学 | Test system for lift of air-assisting atomizing oil sprayer |
-
2012
- 2012-02-21 CN CN201220056032XU patent/CN202510268U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588179A (en) * | 2012-02-21 | 2012-07-18 | 南京航空航天大学 | Test system for lift of air-assisting atomizing oil sprayer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121031 Termination date: 20210221 |