CN108843475B

CN108843475B - Simulation test machine control device for evaluating blockage rate of gasoline engine electric control fuel injector

Info

Publication number: CN108843475B
Application number: CN201810508825.2A
Authority: CN
Inventors: 黄博涛; 袁显阳; 徐立国
Original assignee: BEIJING GAOKE APPLICATION TECHNOLOGY INSTITUTE Co Ltd
Current assignee: BEIJING GAOKE APPLICATION TECHNOLOGY INSTITUTE Co Ltd
Priority date: 2018-05-24
Filing date: 2018-05-24
Publication date: 2020-03-31
Anticipated expiration: 2038-05-24
Also published as: CN108843475A

Abstract

The application discloses a simulation test control device for an electric control oil injector. The device includes: the nitrogen gas pressure regulating device, the first valve, the second valve, the fuel storage device, the third valve, the pump part and the controller are connected with the first valve, the second valve and the third valve respectively, under the control of the controller, the simulation test control device forms a first loop and a second loop, and the first loop comprises the pump part, the third valve, the fuel storage device, the second valve and an outlet; the second circuit includes a nitrogen pressure regulating device, a first valve, a second valve, a fuel storage device, a third valve, and a test section. The simulation test control device has two loops, so that bidirectional cleaning can be performed, all parts and pipelines in the device can be thoroughly cleaned, the accuracy of test results can be improved, and the service life of the device is prolonged.

Description

Simulation test machine control device for evaluating blockage rate of gasoline engine electric control fuel injector

Technical Field

The application relates to the technical field of automatic control, in particular to a simulation test control device for an electric control oil injector, and more particularly relates to a simulation test control device for evaluating the blockage rate of the electric control oil injector of a gasoline engine.

Background

Deposits are easily generated at the tip of a needle-type electric fuel injector of an engine to restrict uniform injection of fuel, thereby causing problems of reduction in fuel efficiency and increase in emission of pollutants. With the continuous progress of the manufacturing technology of gasoline engines, more and more cylinder direct injection engines on the market replace the old engines, and the formation and distribution of carbon deposits in the engines are directly influenced due to the change of the structures of the engines. Therefore, the detection of the blockage of the gasoline electronic control fuel injector by carbon deposit in the gasoline electronic control fuel injector area also becomes an important index for evaluating the cleaning performance of the gasoline for the vehicle. The test machine needs to be cleaned during long use or before each test. However, the existing testing machine can only clean the oil path and the oil storage tank in the testing machine in one direction, and cannot completely clean the oil path in the testing machine, so that after a long-term test, too much viscous oil sludge is attached to the wall of the oil path and the inner wall of the oil storage tank, test analysis data is influenced, and analysis errors are caused.

Disclosure of Invention

It is an object of the present application to overcome the above problems or to at least partially solve or mitigate the above problems.

The application provides a simulation test controlling means, includes: a nitrogen pressure regulating device, a first valve, a second valve, a fuel storage device, a third valve, a pump component and a controller, wherein,

a first port of the first valve is communicated with the nitrogen pressure regulating device, a second port of the first valve is communicated with a third port of the second valve, and the third port of the first valve is communicated with an outlet;

the first port of the second valve is in communication with the third port of the first valve, the second port of the second valve is in communication with the fuel reservoir, and the third port of the second valve is in communication with the second port of the first valve;

a first port of the third valve is in communication with the pump assembly, a second port of the third valve is in communication with the fuel reservoir, and a third port of the third valve is in communication with the test section;

the controller being connected to the first valve, the second valve and the third valve respectively, the analogue test control means forming a first circuit and a second circuit under the control of the controller, the first circuit including the pump member, the third valve, the fuel reservoir means and the second valve and the outlet; the second circuit includes the nitrogen pressure adjusting device, the first valve, the second valve, the fuel storage device, the third valve, and the test section.

The simulation test control device has two loops, so that bidirectional cleaning can be performed, all parts and pipelines in the device can be thoroughly cleaned, the accuracy of test results can be improved, and the service life of the device is prolonged.

Optionally, the first port of the first valve, the first port of the second valve, and the first port of the third valve are normally closed ports, and the second port of the first valve, the second port of the second valve, and the second port of the third valve are normally open ports; the third port of the first valve, the third port of the second valve, and the third port of the third valve are common ports.

By adopting the structure, when the simulation test control device is in an inoperative state, namely when the controller does not work, air cannot enter the fuel storage device through the nitrogen pressure adjusting device, and liquid cannot enter the fuel storage device through the pump part, so that the safety performance of the whole control device is improved.

Optionally, the controller is operable in a first purge mode or a reserve mode to fill the fuel reservoir with fluid via the pump member and the third valve, and to drain the fluid via the second valve and the outlet.

Optionally, the controller is operable in a second purge mode or test mode to inject gas into the fuel reservoir via the nitrogen pressure regulating device and the first valve to expel liquid in the fuel reservoir from the test section via the third valve.

All parts and pipelines of the simulation test control device can be thoroughly cleaned through the first cleaning process and the second cleaning process, normal oil storage and tests can be realized due to the connection relation of the first loop and the second loop, the original pipelines can be utilized for bidirectional cleaning, additional equipment does not need to be added, and the device is convenient to use and simple to operate.

Optionally, the test portion comprises:

the lower end surface of the fuel distributor is also connected with at least one electric control fuel injector;

the heating device is used for heating the electric control oil injector and detecting the temperature of the electric control oil injector; and

and the measuring device is arranged below the electric control fuel injector and used for containing the liquid sprayed out of the electric control fuel injector and measuring the amount of the liquid.

By adopting the device, the blockage tendency of the electric control oil sprayer can be judged by measuring the amount of liquid flowing out of the electric control oil sprayer, and long-time automatic detection of the electric control oil sprayer is realized.

Optionally, the test portion further comprises: and the lifting device is used for bearing the measuring device and adjusting the height of the measuring device.

Optionally, a diversion nozzle is connected below the electronic control fuel injector.

Optionally, the fuel dispenser comprises:

the I-shaped channel is arranged inside the fuel oil distributor and comprises four ports, and the four ports are respectively communicated with the four electric control fuel injectors; and

the first channel is arranged inside the fuel oil distributor and communicated with the center of the I-shaped channel, an opening of the first channel is arranged on the side wall of the fuel oil distributor and connected with an elbow, and the elbow is communicated with the fuel oil storage device through a pipeline.

Optionally, the nitrogen pressure adjusting device includes:

the nitrogen pressure regulating valve is used for controlling the nitrogen pressure;

the gas pressure sensor is connected with the nitrogen pressure regulating valve and is used for detecting the gas pressure of the nitrogen during the nitrogen pressure regulation; and

and the display is connected with the gas pressure sensor and used for displaying the numerical value of the gas pressure of the nitrogen.

Optionally, the fuel dispenser further comprises a quick connector, one end of the quick connector is communicated with the fuel storage device, and the other end of the quick connector is communicated with the fuel dispenser through a nylon pipe.

Optionally, a sealing ring and a sleeve are arranged between the electronic control fuel injector and the fuel distributor, the sealing ring is sleeved at the top end of the electronic control fuel injector, and the sleeve is arranged below the sealing ring and sleeved on the electronic control fuel injector.

The application discloses simulation test controlling means can realize for the both directions washing of forward and reverse, pipeline and part in can the thorough cleaning device, has avoided because the adherent problem of dope that the live time overlength caused, has guaranteed the accuracy of analysis data.

The above and other objects, advantages and features of the present application will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the present application will be described in detail hereinafter by way of illustration and not limitation with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

FIG. 1 is a schematic view of a simulation test control apparatus in a first cleaning mode;

FIG. 2 is a schematic view of the simulation test control apparatus in a second cleaning mode;

FIG. 3 is a schematic diagram of the simulation test control apparatus in the oil storage mode;

FIG. 4 is a schematic diagram of the simulation test control apparatus in a test mode;

FIG. 5 is a schematic view of a test section of the simulation test control apparatus;

FIG. 6 is a front view of one embodiment of a simulation test control apparatus according to the present application;

FIG. 7 is a left side view of one embodiment of a simulation test control apparatus according to the present application;

FIG. 8 is a rear view of one embodiment of a simulation test control apparatus according to the present application;

fig. 9 is a schematic structural view of a connecting portion of the electronic fuel injector and the fuel dispenser.

In the drawings:

1, controlling an interface of an electric control oil injector; 2 a pressure display; 3, turning a knob; 4, a quick joint; 5 a temperature sensor interface; 6, a temperature protection interface; 7 a temperature sensor; 8 nylon tube; 9, bending the pipe; 10 a fuel dispenser; 11, electrically controlling the oil injector; 12 heating the block; 13 an inlet; 14 flow guide nozzles; 15 an outlet; 16 measuring cylinders; 17 a lifting device; 18 a first separator plate; 19 a first channel; 20 a second separator; 21 a fuel storage device; 22 nylon tubes; 23 pump parts; 24 nitrogen pressure regulating valve; 25 air supply nylon pipes; 26 a pressure transmitter; 27 a second container; 28 a filter; 29 a first container; 31 a seal ring; 32 fuel distributor inner bore; 100 a first valve, 101 a first port of the first valve, 102 a second port of the first valve, 103 a third port of the first valve; 200 a second valve, 201 a first port of the second valve, 202 a second port of the second valve, 203 a third port of the second valve; 300 a third valve, 301 a first port of the third valve, 302 a second port of the third valve, 303 a third port of the third valve; 400 a fourth valve; 500 a fifth valve; 600 test part.

Detailed Description

See fig. 1-4. The embodiment provides a simulation test control device. The device includes: a nitrogen pressure regulating device, a first valve 100, a second valve 200, a fuel reservoir 21, a third valve 300, a pump member 23, and a controller (not shown), wherein the first port 101 of the first valve 100 is in communication with the nitrogen pressure regulating device, the second port 102 of the first valve 100 is in communication with the third port 203 of the second valve 200, and the third port 103 of the first valve 100 is in communication with the outlet 15; the first port 201 of the second valve 200 communicates with the third port 103 of the first valve 100, the second port 202 of the second valve 200 communicates with the fuel reservoir 21, and the third port 203 of the second valve 200 communicates with the second port 102 of the first valve 100; the first port 301 of the third valve 300 is in communication with the pump member 23, the second port 302 of the third valve 300 is in communication with the fuel reservoir 21, and the third port 303 of the third valve 300 is in communication with the test section 600; the controller is connected to the first valve 100, the second valve 200 and the third valve 300 respectively, and under the control of the controller, the analogue test control means forms a first circuit and a second circuit, the first circuit may comprise the pump member 23, the third valve 300, the fuel reservoir 21 and the second valve 200 and the outlet 15; the second circuit may include a nitrogen pressure regulator, a first valve 100, a second valve 200, a fuel reservoir 21, a third valve 300, and a test portion 600.

Optionally, the first port 101 of the first valve 100, the first port 201 of the second valve 200, and the first port 301 of the third valve 300 are normally closed ports, and the second port 102 of the first valve 100, the second port 202 of the second valve 200, and the second port 302 of the third valve 300 are normally open ports; the third port 103 of the first valve 100, the third port 203 of the second valve 200, and the third port 303 of the third valve 300 are common ports.

Under the arrangement, when the simulation test control device is in an inoperative state, namely when the controller does not operate, air cannot enter the fuel storage device through the nitrogen pressure adjusting device, and liquid cannot enter the fuel storage device through the pump part, so that the safety performance of the whole control device is improved.

Optionally, the first valve 100, the second valve 200, and the third valve 300 are solenoid valves. The opening and closing of the ports of the valves is controlled by a control device. It is to be understood that the layout of the ports of the valves is not limited to the above arrangement, and may be changed or varied as needed to control the states of the ports by the control device. Modes that the control device can implement may include: a first cleaning mode, a second cleaning mode, an oil storage mode, and a test mode.

The controller is loaded with control software or connected with the controller and control buttons, and various modes of the controller are triggered by clicking the control software or pressing the control buttons.

The controller is operable in a first purge mode or a reserve mode to fill the fuel reservoir with fluid via the pump member and the third valve, and to drain the fluid via the second valve and the outlet. The apparatus may further include a fifth valve 500, the fifth valve 500 being disposed between the fuel reservoir 21 and the second valve 200. The fifth valve 500 may be a solenoid valve controlled by the controller.

The controller is used in a second purge mode or test mode to inject gas into the fuel reservoir 21 via the nitrogen pressure regulating device and the first valve 100 to drain liquid in the fuel reservoir 21 from the test section 600 via the third valve 300.

Before or after the test is carried out for a period of time, the cleaning work of the internal pipeline of the instrument and the oil storage tank is needed. Fig. 1 is a schematic diagram of a simulation test control apparatus in a first cleaning mode. In the first cleaning mode, cleaning fluid is prepared according to the standard and placed in the first container 29, the first cleaning mode of the controller is triggered, and the simulation test control device performs a first cleaning process through the first loop. Cleaning fluid is drawn into the conduit from the first container 29 by the pump member 23 to the third valve 300 with the first port 301 and the second port 302 of the third valve 300 open. The cleaning liquid enters from the bottom of the fuel reservoir 21 and after a period of injection, the cleaning liquid completely fills the fuel reservoir 21. The fifth valve is always in an open state. Cleaning fluid enters the second valve 200 through the fifth valve 500, at which time the first port 201 and the second port 202 of the second valve 200 are opened and cleaning fluid is directed into the second container 27 through the second valve 200. This first cleaning process enables cleaning of the fuel reservoir 21 and its internal piping. After a period of time or a certain number of cycles, the fuel storage device and the pipeline are cleaned.

Fig. 2 is a schematic diagram of the simulation test control apparatus in the second cleaning mode. In the second purge mode, gas is output from the line to the nitrogen pressure regulator valve 24, optionally at 263KPa ± 6.8 KPa. Gas passes through the first valve 100, at which time the first port 101 and the second port 102 of the first valve 100 are opened and gas is thereby introduced into the second valve 200, and the third port 203 and the second port 202 of the second valve 200 are opened and gas is introduced into the fuel reservoir 21. The purging liquid in the fuel reservoir 21 enters the test portion 600 through the second port 302 and the third port 303 of the third valve 300 under the pressure of the gas. Cleaning liquid enters the installed electronic control fuel injector 11 from the fuel distributor 10 of the test part 600, at this time, the electronic control fuel injector 11 is in an open state, and the cleaning liquid is sprayed from the electronic control fuel injector 11 to a recovery container; the injection of the washer fluid in the fuel reservoir 21 is completed and the second washing process is completed. The second cleaning process is mainly intended to discharge the cleaning liquid stored in the fuel storage device 21 and the pipeline in the first cleaning process from the simulation test control device under the action of the gas pressure, and the cleaning liquid passes through the test section 600 to clean the test section 600. It will be appreciated that the gas may be nitrogen, but may also be other inert gases.

Fig. 3 is a schematic diagram of the simulation test control device in the oil storage mode. In the fuel storage mode, gasoline is injected into the fuel storage device 21 by the first circuit. The first container 29 is filled with gasoline, the oil storage mode of the controller is triggered, and the simulation test control device stores oil through the first loop. Petrol is drawn into the conduit from the first reservoir 29 by the pump member 23 to the third valve 300, with the first port 301 and the second port 302 of the third valve 300 being open. The gasoline enters from the bottom of the fuel reservoir 21 and after a period of injection, the fuel reservoir 21 is completely filled with gasoline. The fifth valve is always in an open state. The gasoline enters the second valve 200 through the fifth valve 500, and the first port 201 and the second port 202 of the second valve 200 are opened, and the excessive gasoline is introduced into the second container 27 through the second valve 200. When the second container 27 is filled with oil, it is verified that the fuel reservoir 21 has been filled with gasoline. This storage process enables the fuel reservoir 21 to be filled with gasoline for testing. The liquid used in the oil storage mode is not limited to gasoline, but may be other types of oils or liquids.

Fig. 4 is a schematic diagram of the simulation test control device in the test mode. In the test mode, gas is output from the line and the gas pressure is regulated by the nitrogen pressure regulating valve 24. Optionally, the gas pressure is adjusted to 263KPa + -6.8 KPa. Gas passes through the first valve 100, at which time the first port 101 and the second port 102 of the first valve 100 are open, gas thereby enters the second valve 200, the third port 203 and the second port 202 of the second valve 200 are open, and gas enters the fuel reservoir 21 from the top of the fuel reservoir 21. The gasoline in the fuel reservoir 21 enters the test portion 600 through the second port 302 and the third port 303 of the third valve 300 under the pressure of the gas. Gasoline enters the installed electronic control fuel injector 11 from the fuel distributor 10 of the test part 600, at this time, the electronic control fuel injector 11 is in an open state, and the gasoline is injected from the electronic control fuel injector 11 to the measuring device. After a plurality of times of cycle tests, the flow loss of the electric control fuel injector is measured to evaluate the cleanliness of the gasoline.

Optionally, a filter 28, which may be a filter cartridge for a gasoline engine or other component capable of performing a filtering function, may be provided between the pump member 23 and the third valve. The filter can play a role in filtering gasoline impurities.

Fig. 5 is a schematic diagram of a test section in the simulation test control device. Alternatively, the test part 600 may include: fuel dispenser 10, heating means and measuring means. Wherein, the fuel distributor 10 is communicated with the third port 303 of the third valve 300, and the lower end surface of the fuel distributor 10 is also connected with at least one electric control fuel injector 11; the heating device is used for heating the electric control fuel injector 11 and detecting the temperature of the electric control fuel injector 11; the measuring device is provided below the electrically controlled fuel injector 11, and is configured to receive the liquid sprayed from the electrically controlled fuel injector 11 and measure the amount of the liquid.

By adopting the device, the blockage tendency of the electric control oil sprayer can be judged by measuring the amount of liquid flowing out of the electric control oil sprayer, and long-time automatic detection of the electric control oil sprayer is realized. The device both can let in petrol, also can let in the washing liquid and wash, can realize multiple functions, has improved measurement of efficiency and measurement accuracy.

Fig. 6-8 are different angled views of one embodiment of a simulation test control device, respectively. The nitrogen pressure adjusting device may include: a gas pressure sensor (not shown), a pressure display 2, and a nitrogen pressure regulating valve 24. The pressure display 2 is connected with the gas pressure sensor and used for displaying the numerical value of the gas pressure of the nitrogen, and the pressure display 2 can be a liquid crystal display; the nitrogen pressure regulating valve is used for controlling the pressure of the gas; the knob 3 of the nitrogen pressure regulating valve 24 is connected with the body of the nitrogen pressure regulating valve and is used for regulating the opening size of the nitrogen pressure regulating valve. And the gas pressure sensor is connected with the nitrogen pressure regulating valve and is used for detecting the gas pressure of the nitrogen during the nitrogen pressure regulation. Alternatively, the fuel reservoir 21 is a storage tank. The body of the fuel oil storage device is made of stainless steel materials. The fuel reservoir has a capacity of 2 litres.

The test section 600 may further include a quick connector 4, one end of the quick connector 4 is communicated with the fuel storage device 21, and optionally, the simulation test control device may include a cabinet, the cabinet may include a first partition 18, and one end of the quick connector 4 is fixed on the first partition 18. The other end of the quick connector 4 is communicated with the fuel distributor 10 through a nylon pipe 8. When the electronic control fuel injector is replaced, the quick connector 4 is unscrewed, the fuel distributor is moved away, the electronic control fuel injector can be replaced, and the quick connector is adopted, so that the effect of quickly replacing the electronic control fuel injector can be achieved. Because nylon tube 8 has certain flexibility, be convenient for fuel distributor's dismantlement and installation.

Alternatively, the number of the electronically controlled fuel injectors 11 is two or more, preferably, four. Therefore, a plurality of electric control oil injectors of the same type or different types can be tested simultaneously.

The fuel dispenser 10 includes: the I-shaped channel is arranged inside the fuel oil distributor and comprises four ports, and the four ports are respectively communicated with the four electric control fuel injectors; a first channel 19 is provided inside the fuel distributor 10, the first channel 19 communicating with the centre of the i-shaped channel, and the opening of the first channel 19 is provided in the side wall of the fuel distributor, said opening being connected to an elbow 9, the elbow 9 communicating with the fuel storage means 21 via a pipe.

Since the elbow is located above the center of the i-shaped passage, the oil can flow from the center of the i-shaped passage along each passage, so that the amount of oil distributed to the four electronically controlled fuel injectors 11 is equal. The distances from the four ports of the I-shaped channel to the center are equal, so that the function of uniformly distributing gasoline is achieved. By adopting the fuel oil distributor, 4 electric control fuel oil injectors can be tested at the same time, and when the number of the electric control fuel oil injectors to be tested is less than 4, other ports are closed or blocked.

Fig. 9 is a schematic structural view of a connecting portion of the electronic fuel injector and the fuel dispenser. The electric control fuel injector 11 is connected with the fuel distributor 10 through a sealing ring 31 and a sleeve 30, the sealing ring 31 is arranged at the top end of the electric control fuel injector 11 and sleeved on the electric control fuel injector 11, the sleeve 30 is further arranged below the sealing ring, the upper section of the sleeve 30 is in contact with the lower section of the sealing ring 31, and the sleeve 30 is also sleeved on the electric control fuel injector 11. Optionally, the sleeve 30 is a brass material. The sealing ring 31 is an O-ring, and is preferably made of rubber. The sealing ring 31 and the sleeve 30 are directly sleeved on the electric control fuel injector 11 to be integrated with the electric control fuel injector. The electrically controlled fuel injector 11 with the sealing rings 31 is inserted into four process holes on the lower end face of the fuel distributor 10 together. The fuel distributor bore 32 is hollow and communicates with the i-shaped channel of the fuel distributor 10. Because the friction force is generated in the process of inserting the electric control fuel injector into the fabrication hole, and the contact mode between the fabrication hole and the electric control fuel injector 11 with the sealing ring 31 is oversaturated, the sealing ring 31 is very easy to slide down on the electric control fuel injector 11, so that the sealing ring 31 on the electric control fuel injector 11 becomes uneven, and the phenomenon of fuel leakage is easily caused. Therefore, the sleeve 30 functions as a positioning member, and the upper cross section of the sleeve 30 contacts the lower cross section of the seal ring 31 to abut against the seal ring 31, thereby preventing the seal ring 31 from coming off or being tilted.

The heating device may include: a heating block 12, a temperature sensor 7 and a temperature protection device. Wherein, the heating block 12 has at least one through hole (not shown) in the vertical direction, and the through hole is used for accommodating and heating the needle valve part of the electric control fuel injector 11; the temperature sensor 7 is used for measuring the temperature of the heating block 12; a temperature protection device is connected to the temperature sensor for cutting off the power supply of the heating device when the temperature of the heating block 12 exceeds a predetermined temperature. Optionally, the heating block 12 is a metal block, preferably an aluminum block.

The circuit board (not shown) of the heating device is connected with the temperature sensor 7 through the temperature sensor interface 5 and the temperature protection interface 6, respectively (connecting wires are not shown). Wherein the temperature sensor 7 transmits the sensing data to the circuit board through the temperature sensor interface 5, and the power supply is cut off through the temperature protection interface 6 when the temperature of the heating block 12 exceeds a predetermined temperature, for example, 160 degrees celsius. The temperature sensor 7 may be a platinum resistance sensor, for example, a Pt100 temperature sensor. The temperature protection interface 6 can cut off the measurement of the temperature sensor when the temperature exceeds the preset temperature, and simultaneously cut off the heating of the heating block 12, thereby protecting the temperature sensor and the whole circuit main board. The device can also comprise an electric control oil injector control interface 1 which is a connector, one end of the interface is connected with a control line of the electric control oil injector, the other end of the interface is connected with a control device of the electric control oil injector, and the control device is used for controlling the opening or closing of a needle valve part of the electric control oil injector.

The heating device is fixed on the second partition 20 of the cabinet, and the fuel dispenser is connected with the heating device through screws (not shown), so that the electric control fuel injector 11 is fixed between the heating device and the fuel dispenser. The height of the screw can be adjusted, so that the heights of the heating device and the fuel distributor can be changed, and the electric control fuel injectors with different lengths can be accommodated in the holes of the heating device.

Optionally, a diversion nozzle 14 is connected below the electrically controlled fuel injector 11. Because the liquid sprayed by the electronic control fuel injector 11 expands outwards and is not sprayed vertically downwards, the flow guide nozzle 14 is added below the electronic control fuel injector 11, so that the liquid sprayed by the electronic control fuel injector 11 flows into the measuring device vertically downwards along the flow guide nozzle 14, and is prevented from being sprayed outside the measuring device.

Optionally, the simulation test control device may further include: and the lifting device 17 is used for carrying the measuring device and adjusting the height of the measuring device. The lifting device 17 may be a folding arm type lifting mechanism, and the lifting device is controlled to ascend or descend by a knob. The lifting device also adopts various manners in the prior art, such as a scissor type lifting mechanism, a sleeve type lifting mechanism, and the like. The distance between the measuring device and the electric control oil injector 11 can be adjusted by adopting the lifting device according to different heights of different measuring devices.

Alternatively, the measuring means may be a measuring cylinder 16, and the measuring cylinder 16 is placed in line with the needle valve portion of the electronically controlled fuel injector 11 in the vertical direction. The measuring cylinder 16 and the needle valve part of the electronic control fuel injector 11 are collinear, so that liquid can completely flow into the measuring cylinder 16, and the measurement is more accurate. Each of the electrically controlled fuel injectors 11 corresponds to one of the measuring cylinders 16 to measure the volume of the liquid sprayed from the electrically controlled fuel injector 11. By adopting the measuring cylinder 16, the liquid sprayed by each electric control oil sprayer 11 can be measured independently, and the measuring result is more targeted. Alternatively, the measuring cylinder 16 has a capacity of 100 ml.

Alternatively, the measuring device may be a beaker. The beaker is used for receiving the amount of liquid sprayed by the electrically controlled fuel injector 11. The beaker can be used for receiving oil sprayed by the electric control oil sprayer 11 in the circulation test process; the method can also be used when the oil injection quantity of each electric control oil injector 11 does not need to be accurately measured, and the beaker measures the oil injection quantity of all the electric control oil injectors 11 to be measured at the moment, so that the average value of the oil injection quantity of all the electric control oil injectors 11 can be obtained, and the performance of the electric control oil injectors can be further analyzed.

The simulation test control apparatus may further include an inlet 13 and an outlet 15, and the inlet 13 and the outlet 15 are connected to a fuel storage device 21, respectively. The inlet 13 is used to inject liquid into the fuel reservoir 21 and the outlet 15 is used to remove excess liquid.

The application discloses analogue test controlling means can test to the coking rate tendency of electron cellular type automatically controlled sprayer, can utilize original pipeline to carry out two-way washing to various parts and the pipeline of device for pipeline and the part of device inside can obtain abundant washing before testing, thereby reduce the contaminated risk of oil appearance for the test, guarantee the accuracy nature of test data.

The simulation test control device can test and evaluate the electric control oil injectors of various models, and the existing equipment can only test a specific electric control oil injector, so that the simulation test control device disclosed by the application has a wider application range and more functions.

The heating plate in the heating block is fixed with the fuel oil distributor through two threaded screws. The screw rods are two independent screws, the screws are directly inserted into the heater through a process through hole above the fuel distributor, and the fuel distributor and the heating plate are fixed through a wrench knob screw rod. The structure of the fuel oil distributor and the fixing mode of the heating plate are different from those of the existing equipment, a plurality of electric control oil injectors can be tested simultaneously, and the efficiency is higher

The fuel distributor of the application has the length adjusting function. Because the specifications of the electric control fuel injector and the specifications manufactured by various automobile part manufacturers are different, the electric control fuel injector needs to be suitable for different fuel injectors to carry out tests. Generally, the injectors are all the same diameter but different lengths, and therefore the function of height adjustment is designed. The fuel distributor and the heating plate are fixed together by adopting two longer inner hexagonal threaded rods, directly inserting the two longer inner hexagonal threaded rods into the through holes with threads on the heating plate from the fuel distributor and screwing the screws by using an inner hexagonal wrench, and fixing the electric control fuel injector between the fuel distributor and the heating plate in such a way that the fuel injector is different in length and the number of screwed circles of the threaded rods is different, so that the same set of device can adapt to the electric control fuel injector with different lengths and specifications.

In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the order or number of the technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

The above description is only for the preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A simulation test control apparatus comprising: a nitrogen pressure regulating device, a first valve, a second valve, a fuel storage device, a third valve, a pump component and a controller, wherein,

a first port of the third valve is in communication with the pump assembly, a second port of the third valve is in communication with the fuel reservoir, and a third port of the third valve is in communication with a test section;

the controller being connected to the first valve, the second valve and the third valve respectively, the analogue test control means forming a first circuit and a second circuit under the control of the controller, the first circuit including the pump member, the third valve, the fuel reservoir, the second valve and the outlet; the second circuit includes the nitrogen pressure adjusting device, the first valve, the second valve, the fuel storage device, the third valve, and the test section;

the first port of the first valve, the first port of the second valve and the first port of the third valve are normally closed ports, and the second port of the first valve, the second port of the second valve and the second port of the third valve are normally open ports; the third port of the first valve, the third port of the second valve, and the third port of the third valve are common ports;

the controller is operable in a first purge mode or a reserve mode to inject liquid into the fuel reservoir via the pump member and the third valve, and to discharge liquid via the second valve and the outlet;

the controller is used for injecting gas into the fuel storage device through the nitrogen pressure adjusting device and the first valve in a second cleaning mode or a test mode so as to discharge liquid in the fuel storage device from the test part through the third valve;

the test section includes: the lower end surface of the fuel distributor is also connected with at least one electric control fuel injector;

in a first cleaning mode, cleaning liquid is pumped into the pipeline from the first container to the third valve by the pump component, the first port and the second end of the third valve are opened at the moment, the cleaning liquid enters from the bottom of the fuel storage device and is completely filled in the fuel storage device after a period of injection, the cleaning liquid passes through the second valve, the first port and the second port of the second valve are opened at the moment, and the cleaning liquid is led into the second container through the second valve so as to clean the fuel storage device and the internal pipeline of the fuel storage device;

in a second cleaning mode, gas is output from a pipeline to the nitrogen pressure regulating valve, the gas passes through the first valve, at the moment, the first port and the second port of the first valve are opened, the gas enters the second valve, the third port and the second port of the second valve are opened, the gas enters the fuel storage device, under the pressure of the gas, cleaning liquid in the fuel storage device enters the testing part through the second port and the third port of the third valve, the cleaning liquid enters the mounted electronic control fuel injector from the fuel distributor of the testing part, at the moment, the electronic control fuel injector is in an opened state, and the cleaning liquid is sprayed out of the electronic control fuel injector to the recovery container; after the cleaning liquid in the fuel storage device is sprayed, a second cleaning process is completed, and the cleaning of the test part is realized;

in the oil storage mode, gasoline is injected into the fuel oil storage device by using the first return circuit, the first container is filled with the gasoline, the gasoline is pumped into the pipeline from the first container by the pump component to the third valve, the first port and the second port of the third valve are opened at the moment, the gasoline enters from the bottom of the fuel oil storage device, after a period of injection, the gasoline completely fills the fuel oil storage device, the gasoline passes through the second valve, the first port and the second port of the second valve are opened at the moment, and the redundant gasoline is led into the second container through the second valve so that the fuel oil storage device is filled with the gasoline for test use;

in a test mode, gas is output from a pipeline, the gas pressure is adjusted through a nitrogen pressure adjusting valve, the gas passes through a first valve, at the moment, a first port and a second port of the first valve are opened, the gas enters a second valve, a third port and a second port of the second valve are opened, the gas enters a fuel storage device from the top of the fuel storage device, under the pressure of the gas, gasoline in the fuel storage device enters a test part through a second port and a third port of a third valve, the gasoline enters an installed electronic control fuel injector from a fuel distributor of the test part, at the moment, the electronic control fuel injector is in an open state, and the gasoline is injected into a measuring device from the electronic control fuel injector.

2. The simulation test control device according to claim 1, wherein the test section further includes:

3. The simulation test control device according to claim 1, wherein the test section further includes: and the lifting device is used for bearing the measuring device and adjusting the height of the measuring device.

4. The simulation test control device according to claim 1, wherein a flow guide nozzle is connected below the electric control fuel injector.

5. The simulation test control device according to claim 1, wherein the fuel dispenser includes:

6. The simulation test control device according to claim 1, wherein the nitrogen pressure adjusting device includes:

7. The simulation test control device according to any one of claims 1 to 6, wherein a seal ring and a sleeve are arranged between the electronic control fuel injector and the fuel distributor, the seal ring is sleeved on the top end of the electronic control fuel injector, and the sleeve is arranged below the seal ring and sleeved on the electronic control fuel injector.