CN204984684U - Gasoline engine directly spouts formula sprayer performance detecting system - Google Patents
Gasoline engine directly spouts formula sprayer performance detecting system Download PDFInfo
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- CN204984684U CN204984684U CN201520036251.5U CN201520036251U CN204984684U CN 204984684 U CN204984684 U CN 204984684U CN 201520036251 U CN201520036251 U CN 201520036251U CN 204984684 U CN204984684 U CN 204984684U
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Abstract
The utility model relates to a gasoline engine directly spouts formula sprayer performance detecting system, including the stable and holding device of experimental hydraulic pressure force, experimental hydraulic pressure force adjusts and drive arrangement, experimental liquid temperature regulation apparatus, experimental liquid replenishing device, sprayer installation device, experimental constant volume device and control system, wherein, it is the constant temperature and isopiestic pressure jar body to test hydraulic pressure force stability and holding device, it is provided with the nitrogen pressure input port, experimental liquid supplyes the mouth, experimental liquid delivery outlet, temperature control input and five interfaces of delivery outlet, jar body internally mounted pressure sensor, temperature sensor and level sensor, the nitrogen pressure input port links to each other with experimental liquid drive arrangement, experimental liquid supplyes the mouth and links to each other with experimental liquid replenishing device, experimental liquid delivery outlet and sprayer installation device link to each other, sprayer installation device links to each other with experimental constant volume device, experimental hydraulic pressure force regulation and drive arrangement are connected with experimental constant volume device, the temperature control input, the temperature control delivery outlet links to each other and loops in with experimental liquid temperature regulation apparatus.
Description
Technical field
The utility model belongs to technical field of engines, relates to petrol engine direct injection fuel injector, especially a kind of petrol engine direct injection fuel injector performance detecting system.
Background technique
Along with domestic and international to the increasingly stringent of automobile emission regulation, engine electric-controlled spraying technique is had higher requirement, due to the core component that oil sprayer is engine fuel atomization, therefore, the performance of oil sprayer has conclusive impact to engine power performance, Economy, emission performance etc.In order to specification and instruct oil sprayer to produce, China's priority has promulgated " GB/T25362-2010 electromagnetic valve type oil sprayer for gasoline engine assembly technical specifications " and " GB/T25363-2010 electromagnetic valve type oil sprayer for gasoline engine assembly test method " two national voluntary standards.Although China has promulgated oil sprayer testing property standard, lack the system of accordingly low voltage electromagnetic valve type oil sprayer being carried out comprehensively, accurately detecting.
At present, the manufacture of most domestic auto parts and automobile maintenance industry still generally adopt fairly simple oil sprayer test method, many employings soon, the ear method of listening to be to differentiate the quality of oil sprayer, which results in direct injection fuel injector and there is very big difference in performance, even do not met the oil sprayer of laws and regulations requirement still in use, diameter have impact on the properties of motor.Compared with domestic, external direct injection fuel injector detects regulation and issues comparatively early, but, even also immature to the research of vapour direct injection fuel injector detection.
On Domestic market, existing oil sprayer washing unit is merely able to simply measure fuel injection quantity, and error is comparatively large, is mainly used in getting rid of the faults such as oil sprayer blocking, cannot meets the demand that oil sprayer performance accurately detects.Therefore, need to develop a kind of system detected for petrol engine direct injection fuel injector all round properties, to adapt to the testing requirement of national legislation.
Model utility content
The purpose of this utility model is to overcome the deficiencies in the prior art part, provides a kind of petrol engine direct injection fuel injector performance detecting system realizing the automatic acquisition and processing of data in oil sprayer testing process.
The utility model solves its technical problem and takes following technological scheme to realize:
A kind of petrol engine direct injection fuel injector performance detecting system, comprise experimental liquid pressure stability and holding device, experimental liquid pressure regulates and drive unit, experimental liquid temperature-adjusting device, experimental liquid adding device, installation device of fuel injector, test volume fixing device and control system, wherein, experimental liquid pressure stability and holding device are a constant temperature and pressure tank body, it is provided with nitrogen pressure inlet opening, experimental liquid supplements mouth, experimental liquid delivery outlet, temperature control inputs and delivery outlet five interfaces, tank interior setting pressure sensor, temperature transducer and liquid level sensor, nitrogen pressure inlet opening is connected with experimental liquid drive unit, experimental liquid supplements mouth and is connected with experimental liquid adding device, experimental liquid delivery outlet is connected with installation device of fuel injector, installation device of fuel injector is connected with test volume fixing device, experimental liquid pressure regulates and drive unit is connected with test volume fixing device, test volume fixing device is made to form the cylinder environment of simulating in direct injection fuel injector working procedure, temperature control inputs, temperature controls delivery outlet and is connected with experimental liquid temperature-adjusting device and forms loop.
And, described experimental liquid pressure regulates and drive unit comprises low pressure nitrogen gas cylinder, high-pressure nitrogen bottle, gas-liquid booster pump, solenoid valve, automatically controlled pressure regulator valve, low pressure nitrogen gas cylinder, high-pressure nitrogen bottle is connected to the input end of gas-liquid booster pump respectively by pipeline, gas-liquid pressure-boosting delivery side of pump is connected on the nitrogen pressure inlet opening of constant temperature and pressure tank body, connecting pipeline between gas-liquid booster pump and constant temperature and pressure tank body is provided with successively two electrically switchable grating solenoid valves, a nitrogen pressure sensor, pipeline between low pressure nitrogen gas cylinder and gas-liquid booster pump is provided with solenoid valve, pipeline between high-pressure nitrogen bottle and gas-liquid booster pump is provided with automatically controlled pressure regulator valve, low pressure nitrogen gas cylinder provides control source of the gas for gas-liquid booster pump, the gas pressure of high-pressure nitrogen bottle is after automatically controlled pressure regulator valve pressure regulation, enter gas-liquid booster pump, export the gas of more high pressure, for stability test hydraulic coupling and driving experimental liquid.Automatically controlled pressure regulator valve is for regulating the atmospheric pressure exported by high-pressure nitrogen bottle, and electrically switchable grating valve is for opening and closing Nitrogen source gases.
And, the temperature that described experimental liquid temperature-adjusting device is used for experimental liquid in process of the test controls, comprise water temperature case, water temperature control system, heat exchanger, recycle pump, cooling-water temperature sensor, temperature display meter, the temperature control inputs of water temperature case and constant temperature and pressure tank body and delivery outlet pipe even form experimental liquid loop, in water temperature case, point cooling-water temperature sensor and heat exchanger are installed, cooling-water temperature sensor by control circuit respectively with the water temperature control system outside water temperature case and temperature indicator list catenation.
And, described experimental liquid adding device is used in process of the test constantly to constant temperature and pressure tank body supplementary test liquid, comprise fluid infusion case, experimental liquid filler, automatically controlled fluid infusion pump, one-way valve, the experimental liquid of fluid infusion case and constant temperature and pressure tank body supplements mouth Guan Lian, fluid infusion case is used for storage test liquid, the connecting pipeline supplementing mouth at the experimental liquid of fluid infusion case and constant temperature and pressure tank body is provided with automatically controlled fluid infusion pump and one-way valve successively, in process of the test, experimental liquid, according to control system instruction, is sent into constant temperature and pressure tank body through one-way valve by automatically controlled fluid infusion pump.
And, described installation device of fuel injector comprises installation device of fuel injector, upper automatically controlled switch valve, oil sprayer, installation device of fuel injector connects the experimental liquid delivery outlet of constant temperature and pressure tank body by pipeline, this connecting pipeline is provided with automatically controlled switch valve, for installing oil sprayer, realized the installation requirement of different model oil sprayer by this installation device of fuel injector.
And, described test volume fixing device comprises constant volume device, electronically controlled proportional valve, lower electrically switchable grating valve, baroceptor, image capturing system, vacuum pump, oil and water seperator, constant volume device is for installing installation device of fuel injector and being positioned in constant volume device by oil sprayer, pipeline between high-pressure nitrogen bottle and gas-liquid booster pump connects a pipeline, this pipeline passes into constant volume device input nitrogen, for simulating the cylinder environment in direct injection fuel injector working procedure, this pipeline is provided with electronically controlled proportional valve, by pipeline, vacuum pump is installed bottom constant volume device, the connecting pipeline of vacuum pump and constant volume device is provided with lower electrically switchable grating valve, the pipeline of vacuum pump outlet side is provided with oil and water seperator, test(ing) liquid in constant volume device is taken away by vacuum pump, and through oil and water seperator by gas-liquid separation, image capturing system is for catching the performance parameter such as atomization form and cone angle of oil sprayer experimental liquid in course of injection.
And, described control system is responsible for the Stress control of whole oil sprayer detection experiment process, temperature controls, fluid infusion, oil sprayer opens and closes, data capture etc., the pressure transducer of constant temperature and pressure tank body, temperature transducer, liquid level sensor, the nitrogen pressure sensor of the adjustment of experimental liquid pressure and drive unit, cooling-water temperature sensor in water temperature case, baroceptor and the image capturing system of test volume fixing device are connected with the input end of control system respectively, the output terminal of control system regulates with experimental liquid pressure and the solenoid valve of drive unit respectively, automatically controlled pressure regulator valve, two electrically switchable grating solenoid valves, water temperature control system, the upper automatically controlled switch valve of installation device of fuel injector is connected with the lower electrically switchable grating valve of test volume fixing device.
Advantage of the present utility model and good effect are:
1, this detection system meets the test conditions that domestic and international direct injection fuel injector detects, and achieves accurate, the complete detection of direct injection fuel injector performance, provides a set of feasible pilot system for direct injection fuel injector detects.
2, this detection system experimental liquid Stress control, temperature controlled, supplement, the function i ntegration such as collection together, achieve organically blending of each system and to carry out with the orderly, coherent of direct injection fuel injector detection experiment, there is higher automaticity.
3, this detection system achieves pressure in process of the test, temperature, liquid level, the isoparametric automatic acquisition and processing of atomization characteristics, the characteristics such as oil sprayer spray discharge pattern, domain size distribution can be displayed with image format, make direct injection fuel injector Performance Detection more directly perceived accurately.
4, this detection system adopts the mode of high-low pressure nitrogen combination achieve experimental liquid pressure stability and drive function, solves experimental liquid high drive and stable problem, and adopts pressure feedback to control, ensure that carrying out smoothly of direct injection fuel injector detection experiment.
5, this detection system have employed experimental liquid supplementary device, ensure that carrying out continuously of oil sprayer detection experiment; Adopt the form of water coke slurry to carry out the adjustment of experimental liquid temperature, improve the thermoregulator Security of experimental liquid, meet the test conditions that oil sprayer detects.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, also by specific embodiment, the utility model is described in further detail, and following examples are descriptive, are not determinate, can not limit protection domain of the present utility model with this.
A kind of petrol engine direct injection fuel injector performance detecting system, comprise experimental liquid pressure stability and holding device, experimental liquid pressure regulates and drive unit, experimental liquid temperature-adjusting device, experimental liquid adding device, installation device of fuel injector, test volume fixing device and control system 32, wherein, experimental liquid pressure stability and holding device are a constant temperature and pressure tank body 18, it is provided with nitrogen pressure inlet opening, experimental liquid supplements mouth, experimental liquid delivery outlet, temperature control inputs and delivery outlet five interfaces, tank interior setting pressure sensor 28, temperature transducer 27 and liquid level sensor 26, nitrogen pressure inlet opening is connected with experimental liquid drive unit, experimental liquid supplements mouth and is connected with experimental liquid adding device, experimental liquid delivery outlet is connected with installation device of fuel injector, installation device of fuel injector is connected with test volume fixing device, experimental liquid pressure regulates and drive unit is connected with test volume fixing device, test volume fixing device is made to form the cylinder environment of simulating in direct injection fuel injector working procedure, temperature control inputs, temperature controls delivery outlet and is connected with experimental liquid temperature-adjusting device and forms loop.
Experimental liquid pressure regulates and drive unit comprises low pressure nitrogen gas cylinder 1, high-pressure nitrogen bottle 2, gas-liquid booster pump 4, solenoid valve 31, automatically controlled pressure regulator valve 3, low pressure nitrogen gas cylinder, high-pressure nitrogen bottle is connected to the input end of gas-liquid booster pump respectively by pipeline, gas-liquid pressure-boosting delivery side of pump is connected on the nitrogen pressure inlet opening of constant temperature and pressure tank body, connecting pipeline between gas-liquid booster pump and constant temperature and pressure tank body is provided with successively two electrically switchable grating solenoid valves 5 and 6, a nitrogen pressure sensor 7, pipeline between low pressure nitrogen gas cylinder and gas-liquid booster pump is provided with solenoid valve, pipeline between high-pressure nitrogen bottle and gas-liquid booster pump is provided with automatically controlled pressure regulator valve, low pressure nitrogen gas cylinder provides control source of the gas for gas-liquid booster pump, the gas pressure of high-pressure nitrogen bottle is after automatically controlled pressure regulator valve pressure regulation, enter gas-liquid booster pump, export the gas of more high pressure, for stability test hydraulic coupling and driving experimental liquid.Automatically controlled pressure regulator valve is for regulating the atmospheric pressure exported by high-pressure nitrogen bottle, and electrically switchable grating valve is for opening and closing Nitrogen source gases.
In experimental liquid temperature-adjusting device primary responsibility process of the test, the temperature of experimental liquid controls, the experimental liquid detecting employing due to oil sprayer is inflammable liquid, therefore, adopt water circulation mode of heating Control experiment liquid temp, experimental liquid temperature-adjusting device comprises water temperature case 14, water temperature control system 16, heat exchanger 15, recycle pump 17, cooling-water temperature sensor 12, temperature display meter 13, the temperature control inputs of water temperature case and constant temperature and pressure tank body and delivery outlet pipe even form experimental liquid loop, divide in water temperature case and cooling-water temperature sensor and heat exchanger are installed, cooling-water temperature sensor by control circuit respectively with the water temperature control system outside water temperature case and temperature indicator list catenation, water temperature control system is mainly according to control system order, water is heated to uniform temperature, then the experimental liquid in water temperature case is transferred heat to by heat exchanger, and through recycle pump, by experimental liquid iterative cycles between constant temperature and pressure tank body and thermostat, be heated evenly to make experimental liquid, and by cooling-water temperature sensor acquisition test liquid temp, feed back to temperature display meter and control system, again by control system according to feedback temperature value, the temperature of real-time adjustment water temperature control system, reach the object of experimental liquid temperature stabilization.
The Main Function of experimental liquid adding device is constantly to constant temperature and pressure tank body supplementary test liquid in process of the test, can continually carry out to make test, experimental liquid adding device comprises fluid infusion case 11, experimental liquid filler 10, automatically controlled fluid infusion pump 9, one-way valve 8, the experimental liquid of fluid infusion case and constant temperature and pressure tank body supplements mouth Guan Lian, fluid infusion case is mainly used to storage test liquid, the connecting pipeline supplementing mouth at the experimental liquid of fluid infusion case and constant temperature and pressure tank body is provided with automatically controlled fluid infusion pump and one-way valve successively, in process of the test, automatically controlled fluid infusion pump is according to control system instruction, experimental liquid is sent into constant temperature and pressure tank body through one-way valve.
Installation device of fuel injector comprises installation device of fuel injector 20, upper automatically controlled switch valve 19, oil sprayer 21, installation device of fuel injector connects the experimental liquid delivery outlet of constant temperature and pressure tank body by pipeline, this connecting pipeline is provided with automatically controlled switch valve, for installing oil sprayer, the installation requirement of different model oil sprayer can be realized by this installation device of fuel injector.
Test volume fixing device comprises constant volume device 22, electronically controlled proportional valve 30, lower electrically switchable grating valve 23, baroceptor 29, image capturing system 33, vacuum pump 24, oil and water seperator 25, constant volume device is for installing installation device of fuel injector and being positioned in constant volume device by oil sprayer, pipeline between high-pressure nitrogen bottle and gas-liquid booster pump connects a pipeline, this pipeline passes into constant volume device input nitrogen, for simulating the cylinder environment in direct injection fuel injector working procedure, this pipeline is provided with electronically controlled proportional valve, by pipeline, vacuum pump is installed bottom constant volume device, the connecting pipeline of vacuum pump and constant volume device is provided with lower electrically switchable grating valve, the pipeline of vacuum pump outlet side is provided with oil and water seperator, test(ing) liquid in constant volume device is taken away by vacuum pump, and through oil and water seperator by gas-liquid separation, so that recovery test liquid, preventing pollution environment.Image capturing system is for catching the performance parameter such as atomization form and cone angle of oil sprayer experimental liquid in course of injection, and constant volume device both sides all adopt silica glass, are convenient to the IMAQ of image capturing system.
Control system is responsible for the Stress control of whole oil sprayer detection experiment process, temperature controls, fluid infusion, oil sprayer opens and closes, data capture etc., dotted line in Fig. 1 represents data transmission and the control wiring of control system and all parts, the wherein pressure transducer of constant temperature and pressure tank body, temperature transducer, liquid level sensor, the nitrogen pressure sensor of the adjustment of experimental liquid pressure and drive unit, cooling-water temperature sensor in water temperature case, baroceptor and the image capturing system of test volume fixing device are connected with the input end of control system respectively, the output terminal of control system regulates with experimental liquid pressure and the solenoid valve of drive unit respectively, automatically controlled pressure regulator valve, two electrically switchable grating solenoid valves, water temperature control system, the upper automatically controlled switch valve of installation device of fuel injector is connected with the lower electrically switchable grating valve of test volume fixing device.
Being provided with peripheral printer connecting port on the controller, for connecting printer, test data being printed derivation.
Control system is provided with Panel, can showing temperature as required, pressure, the oil sprayer spray open and close time, the parameters such as oil sprayer spray-cone angle, this display screen is respectively arranged with " starting test " button, " continue to test " button, " terminate to test " button, when the pressure of experimental liquid in constant temperature and pressure tank body, when temperature reaches test requirements document, " starting test " button on display screen becomes green (for red under other states), in process of the test, button becomes grey " to start test ", button becomes green from redness " to continue test ", click " continuing test " button, above test can be repeated, when the test number (TN) set is complete, button can be reddened by ash " to terminate test ", click this button, off-test.
The detecting method step of this petrol engine direct injection fuel injector performance detecting system is as follows:
(1) formulate oil sprayer detection control strategy, and write control strategy program, then by oil sprayer detection control strategy program write control system, control strategy mainly comprises the control of control system to the devices such as pressure, temperature, fluid infusion, oil sprayer or parts, and the data such as collecting temperature, pressure, oil sprayer open and close time;
(2) oil sprayer is installed, according to oil sprayer model, selects corresponding joint, attach it in installation device of fuel injector;
(3) test preparation, start control system, under control system control command, experimental liquid pressure regulates and drive unit starts to inject constant voltage nitrogen in constant temperature and pressure tank body, experimental liquid adding device is according to the data determination amount infused of liquid level sensor in constant temperature and pressure tank body, experimental liquid temperature-adjusting device is according to test needs, experimental liquid in constant temperature and pressure tank body heated or cools, source of the gas delivery pressure, experimental liquid pressure and temperature, testing the information such as liquid level and can be presented on the liquid crystal screen of control system in real time.When the pressure of experimental liquid in constant temperature and pressure tank body, temperature reach test requirements document, " starting test " button on display screen becomes green;
(4) click " starting test " button on display screen, now button becomes grey, in test, button becomes green from redness, control system now can according to oil sprayer testing requirement, the control signal with certain pulsewidth is sent to it, oil sprayer starts jet test, data acquisition unit meeting Real-time Collection pressure, temperature, spray the data such as form, and record oil sprayer control signal pulsewidth and the time lag etc., after certain injecting times terminates, control system can be suspended, then switch valve is opened, start vacuum pump, by emptying for the test(ing) liquid in constant volume device, and prepare to test next time,
(5) repeatedly repeating test, after control system is suspended, certain hour can be provided and carry out experimental liquid collection work, after test(ing) liquid collects measurement, button can be green by red stain " to continue test ", now, click " continuing test " button, above test can be repeated, and carry out corresponding Data Collection and process, as follows repeatedly, can repeatedly average, to obtain this oil sprayer performance parameter accurately;
(6) off-test, when the test number (TN) set is complete, button can be reddened by ash " to terminate test ", click this button, off-test, and by experimental liquid temperature, the pressure in process of the test, the spray-cone angle of oil sprayer, oil sprayer open and close the parameters such as liquid distribution in time, oil sprayer course of injection and record in detail, when clicking " printing test report " button, control system according to the test report form preset, can export the detection experiment result of this kind of oil sprayer.
Claims (7)
1. a petrol engine direct injection fuel injector performance detecting system, it is characterized in that: comprise experimental liquid pressure stability and holding device, experimental liquid pressure regulates and drive unit, experimental liquid temperature-adjusting device, experimental liquid adding device, installation device of fuel injector, test volume fixing device and control system, wherein, experimental liquid pressure stability and holding device are a constant temperature and pressure tank body, it is provided with nitrogen pressure inlet opening, experimental liquid supplements mouth, experimental liquid delivery outlet, temperature control inputs and delivery outlet five interfaces, tank interior setting pressure sensor, temperature transducer and liquid level sensor, nitrogen pressure inlet opening is connected with experimental liquid drive unit, experimental liquid supplements mouth and is connected with experimental liquid adding device, experimental liquid delivery outlet is connected with installation device of fuel injector, installation device of fuel injector is connected with test volume fixing device, experimental liquid pressure regulates and drive unit is connected with test volume fixing device, test volume fixing device is made to form the cylinder environment of simulating in direct injection fuel injector working procedure, temperature control inputs, temperature controls delivery outlet and is connected with experimental liquid temperature-adjusting device and forms loop.
2. petrol engine direct injection fuel injector performance detecting system according to claim 1, it is characterized in that: described experimental liquid pressure regulates and drive unit comprises low pressure nitrogen gas cylinder, high-pressure nitrogen bottle, gas-liquid booster pump, solenoid valve, automatically controlled pressure regulator valve, low pressure nitrogen gas cylinder, high-pressure nitrogen bottle is connected to the input end of gas-liquid booster pump respectively by pipeline, gas-liquid pressure-boosting delivery side of pump is connected on the nitrogen pressure inlet opening of constant temperature and pressure tank body, connecting pipeline between gas-liquid booster pump and constant temperature and pressure tank body is provided with successively two electrically switchable grating solenoid valves, a nitrogen pressure sensor, pipeline between low pressure nitrogen gas cylinder and gas-liquid booster pump is provided with solenoid valve, pipeline between high-pressure nitrogen bottle and gas-liquid booster pump is provided with automatically controlled pressure regulator valve, low pressure nitrogen gas cylinder provides control source of the gas for gas-liquid booster pump, the gas pressure of high-pressure nitrogen bottle is after automatically controlled pressure regulator valve pressure regulation, enter gas-liquid booster pump, export the gas of more high pressure, for stability test hydraulic coupling and driving experimental liquid, automatically controlled pressure regulator valve is for regulating the atmospheric pressure exported by high-pressure nitrogen bottle, electrically switchable grating valve is for opening and closing Nitrogen source gases.
3. petrol engine direct injection fuel injector performance detecting system according to claim 2, it is characterized in that: the temperature that described experimental liquid temperature-adjusting device is used for experimental liquid in process of the test controls, comprise water temperature case, water temperature control system, heat exchanger, recycle pump, cooling-water temperature sensor, temperature display meter, the temperature control inputs of water temperature case and constant temperature and pressure tank body and delivery outlet pipe even form experimental liquid loop, divide in water temperature case and cooling-water temperature sensor and heat exchanger are installed, cooling-water temperature sensor by control circuit respectively with the water temperature control system outside water temperature case and temperature indicator list catenation.
4. petrol engine direct injection fuel injector performance detecting system according to claim 3, it is characterized in that: described experimental liquid adding device is used in process of the test constantly to constant temperature and pressure tank body supplementary test liquid, comprise fluid infusion case, experimental liquid filler, automatically controlled fluid infusion pump, one-way valve, the experimental liquid of fluid infusion case and constant temperature and pressure tank body supplements mouth Guan Lian, fluid infusion case is used for storage test liquid, the connecting pipeline supplementing mouth at the experimental liquid of fluid infusion case and constant temperature and pressure tank body is provided with automatically controlled fluid infusion pump and one-way valve successively, in process of the test, automatically controlled fluid infusion pump is according to control system instruction, experimental liquid is sent into constant temperature and pressure tank body through one-way valve.
5. petrol engine direct injection fuel injector performance detecting system according to claim 4, it is characterized in that: described installation device of fuel injector comprises installation device of fuel injector, upper automatically controlled switch valve, oil sprayer, installation device of fuel injector connects the experimental liquid delivery outlet of constant temperature and pressure tank body by pipeline, this connecting pipeline is provided with automatically controlled switch valve, for installing oil sprayer, realized the installation requirement of different model oil sprayer by this installation device of fuel injector.
6. petrol engine direct injection fuel injector performance detecting system according to claim 5, it is characterized in that: described test volume fixing device comprises constant volume device, electronically controlled proportional valve, lower electrically switchable grating valve, baroceptor, image capturing system, vacuum pump, oil and water seperator, constant volume device is for installing installation device of fuel injector and being positioned in constant volume device by oil sprayer, pipeline between high-pressure nitrogen bottle and gas-liquid booster pump connects a pipeline, this pipeline passes into constant volume device input nitrogen, for simulating the cylinder environment in direct injection fuel injector working procedure, this pipeline is provided with electronically controlled proportional valve, by pipeline, vacuum pump is installed bottom constant volume device, the connecting pipeline of vacuum pump and constant volume device is provided with lower electrically switchable grating valve, the pipeline of vacuum pump outlet side is provided with oil and water seperator, test(ing) liquid in constant volume device is taken away by vacuum pump, and through oil and water seperator by gas-liquid separation, image capturing system is for catching atomization form and the cone angle parameter of oil sprayer experimental liquid in course of injection.
7. petrol engine direct injection fuel injector performance detecting system according to claim 6, it is characterized in that: described control system is responsible for the Stress control of whole oil sprayer detection experiment process, temperature controls, fluid infusion, oil sprayer opens and closes, data capture, the pressure transducer of constant temperature and pressure tank body, temperature transducer, liquid level sensor, the nitrogen pressure sensor of the adjustment of experimental liquid pressure and drive unit, cooling-water temperature sensor in water temperature case, baroceptor and the image capturing system of test volume fixing device are connected with the input end of control system respectively, the output terminal of control system regulates with experimental liquid pressure and the solenoid valve of drive unit respectively, automatically controlled pressure regulator valve, two electrically switchable grating solenoid valves, water temperature control system, the upper automatically controlled switch valve of installation device of fuel injector is connected with the lower electrically switchable grating valve of test volume fixing device.
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| CN201520036251.5U CN204984684U (en) | 2015-01-20 | 2015-01-20 | Gasoline engine directly spouts formula sprayer performance detecting system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632491A (en) * | 2015-01-20 | 2015-05-20 | 瑞安市质量技术监督检测院 | Gasoline engine direct injection type fuel injector performance detecting system |
| CN106907281A (en) * | 2016-12-13 | 2017-06-30 | 中国第汽车股份有限公司 | A kind of Oil-gas Separation and detection means of common-rail injector oil return |
| CN109175121A (en) * | 2018-10-10 | 2019-01-11 | 适新科技（苏州）有限公司 | The outer automatic oil spout system of mould |
| WO2019222967A1 (en) * | 2018-05-24 | 2019-11-28 | 北京朝阳高科应用技术研究所有限公司 | Simulation test apparatus for detecting nozzle |
| CN115597610A (en) * | 2022-09-29 | 2023-01-13 | 阿波罗智联（北京）科技有限公司（Cn） | Data acquisition control method and device, electronic equipment and storage medium |
-
2015
- 2015-01-20 CN CN201520036251.5U patent/CN204984684U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632491A (en) * | 2015-01-20 | 2015-05-20 | 瑞安市质量技术监督检测院 | Gasoline engine direct injection type fuel injector performance detecting system |
| CN106907281A (en) * | 2016-12-13 | 2017-06-30 | 中国第汽车股份有限公司 | A kind of Oil-gas Separation and detection means of common-rail injector oil return |
| CN106907281B (en) * | 2016-12-13 | 2019-05-14 | 中国第一汽车股份有限公司 | A kind of Oil-gas Separation and detection device of common-rail injector oil return |
| WO2019222967A1 (en) * | 2018-05-24 | 2019-11-28 | 北京朝阳高科应用技术研究所有限公司 | Simulation test apparatus for detecting nozzle |
| CN109175121A (en) * | 2018-10-10 | 2019-01-11 | 适新科技（苏州）有限公司 | The outer automatic oil spout system of mould |
| CN109175121B (en) * | 2018-10-10 | 2024-02-02 | 适新科技（苏州）有限公司 | Automatic out-mold oil injection system |
| CN115597610A (en) * | 2022-09-29 | 2023-01-13 | 阿波罗智联（北京）科技有限公司（Cn） | Data acquisition control method and device, electronic equipment and storage medium |
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