CN108843475A - A kind of simulation test machine control device for evaluating gasoline engine electric-controlled fuel injector plugging rate - Google Patents
A kind of simulation test machine control device for evaluating gasoline engine electric-controlled fuel injector plugging rate Download PDFInfo
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- CN108843475A CN108843475A CN201810508825.2A CN201810508825A CN108843475A CN 108843475 A CN108843475 A CN 108843475A CN 201810508825 A CN201810508825 A CN 201810508825A CN 108843475 A CN108843475 A CN 108843475A
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- valve
- port
- electric
- fuel injector
- control device
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
- F02M65/001—Measuring fuel delivery of a fuel injector
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
- F02M65/007—Cleaning
- F02M65/008—Cleaning of injectors only
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Testing Of Engines (AREA)
Abstract
This application discloses a kind of simulation test control devices for electric-controlled fuel injector.The device includes：Nitrogen pressure regulating device, the first valve, the second valve, fuel oil storage facility, third valve, pump part and controller, controller is connect with the first valve, the second valve and third valve respectively, under the control of the controller, simulation test control device forms the first circuit and second servo loop, the first circuit include pump part, third valve, fuel oil storage facility and the second valve and outlet；Second servo loop includes nitrogen pressure regulating device, the first valve, the second valve, fuel oil storage facility, third valve and test portion.There are two circuits for simulation test control device tool, therefore are able to carry out two-way cleaning, so that all components and pipeline in the device can be cleaned thoroughly, so as to improve the accuracy of test result, extend the service life of device.
Description
Technical field
This application involves automatic control technology fields, control more particularly to a kind of simulation test for electric-controlled fuel injector
Device, more particularly, to a kind of simulation test machine control device for evaluating gasoline engine electric-controlled fuel injector plugging rate.
Background technique
The needle-like electric-controlled fuel injector top deposit easily generated of engine limits the uniform injection of fuel oil, so as to cause
Fuel efficiency reduces and the problem of the increasing that discharge pollutants.With being constantly progressive for petrol engine manufacturing technology, in the market
More and more in-cylinder direct fuel-injection engines also directly affect engine due to the variation of its structure instead of older engines
The formation and distribution of internal carbon deposit.Therefore, blocking of the carbon deposit in gasoline electric-controlled fuel injector region to gasoline electric-controlled fuel injector is detected
Situation also becomes the important indicator of evaluation car gasoline lustration performance energy.Testing machine in the case of long-term use or
Every time before test, cleaned.However, existing testing machine can only one direction cleaning testing machine in oil circuit and oil storage
Tank can not completely clean up the oil circuit in testing machine, after causing long-term test, be attached to oil circuit tube wall and storage
Sticky greasy filth on inner wall of oil tank is excessive, influences analysis of experiments data, causes analytical error.
Summary of the invention
Aiming to overcome that the above problem or at least being partially solved or extenuate for the application solves the above problems.
This application provides a kind of simulation test control devices, including：Nitrogen pressure regulating device, the first valve, second
Valve, fuel oil storage facility, third valve, pump part and controller, wherein
The first port of first valve is connected to the nitrogen pressure regulating device, the second end of first valve
Mouth is connected to the third port of second valve, the third port and outlet of first valve；
The first port of second valve is connected to the third port of first valve, and the second of second valve
Port is connected to the fuel oil storage facility, and the second port of the third port of second valve and first valve connects
It is logical；
The first port of the third valve is connected to the pump part, the second port and the combustion of the third valve
The connection of oil measure cryopreservation device, the third port of the third valve are connected to the test portion；
The controller is connect with first valve, second valve and the third valve respectively, in the control
Under the control of device processed, the simulation test control device forms the first circuit and second servo loop, and first circuit includes described
Pump part, the third valve, the fuel oil storage facility and second valve and the outlet；The second servo loop includes
The nitrogen pressure regulating device, first valve, second valve, the fuel oil storage facility, the third valve
With the test portion.
There are two circuits for simulation test control device tool, therefore are able to carry out two-way cleaning, so that in the device
All components and pipeline can thoroughly be cleaned, so as to improve the accuracy of test result, extend making for device
Use the service life.
Optionally, the first port of first valve, the first port of second valve and the third valve
First port is normally closed port, the second port of first valve, the second port of second valve and the third valve
The second port of door is normally opened port；The third port of first valve, the third port of second valve and described
The third port of three valves is common port.
Using this kind of structure, when simulation test control device is in idle state, that is, controller does not work
When, gas will not enter fuel oil storage facility by nitrogen pressure regulating device, and liquid will not enter fuel oil by pump part
Storage facility, to improve the security performance of entire control device.
Optionally, the controller is used for liquid under the first cleaning model or store oil mode via the pumping section
Part and the third valve inject in the fuel oil storage facility, and are discharged via second valve and the outlet.
Optionally, the controller is used for gas under the second cleaning model or test model via nitrogen pressure
Regulating device and first valve inject in the fuel oil storage facility, to pass through the liquid in the fuel oil storage facility
It is discharged by the third valve from the test portion.
It can make all components and pipeline of simulation test control device by the first cleaning process and the second cleaning process
It is all thoroughly cleaned, due to the connection relationship in the first circuit and second servo loop, can either realize normal store oil and test,
Two-way cleaning can be carried out using original pipeline again, be increased without additional equipment, it is easy to use, it is easy to operate.
Optionally, the test portion includes：
Fuel dispenser is connected to the third port of the third valve, and the lower end surface of the fuel dispenser is also and extremely
Few electric-controlled fuel injector connection；
Heating device, for heating the electric-controlled fuel injector and detecting the temperature of the electric-controlled fuel injector；With
The lower section of the electric-controlled fuel injector is arranged in measuring device, for accommodating the liquid sprayed from the electric-controlled fuel injector
Body and the amount for measuring the liquid.
It, can be by measuring blocking of the amount of the liquid flowed out from electric-controlled fuel injector to electric-controlled fuel injector using the device
Tendentiousness is judged, the prolonged automatic detection of electric-controlled fuel injector is realized.
Optionally, the test portion further includes：Lifting device for carrying the measuring device, and adjusts the survey
Measure the height of device.
Optionally, flow-guiding mouth is connected with below the electric-controlled fuel injector.
Optionally, the fuel dispenser includes：
I-shaped channel, is arranged in the inside of the fuel dispenser, including four ports, four ports respectively with
Four electric-controlled fuel injector connections；With
First passage, is arranged in the inside of the fuel dispenser, in the first passage and the I-shaped channel
Heart connection, and the opening of the first passage is set to the side wall of the fuel dispenser, and the opening is connect with elbow, institute
Elbow is stated to be connected to by pipeline with the fuel oil storage facility.
Optionally, the nitrogen pressure regulating device includes：
Nitrogen pressure regulating valve, for controlling the size of nitrogen pressure；
Gas pressure sensor is connected with the nitrogen pressure regulating valve, is carrying out nitrogen pressure adjusting to the gas of nitrogen
Body pressure is detected；With
Display is connect with the gas pressure sensor, the numerical value of the gas pressure for showing nitrogen.
It optionally, further include quick coupling, one end of the quick coupling is connected to the fuel oil storage facility, the other end
It is connected to by nylon tube with the fuel dispenser.
Optionally, sealing ring and casing, the sealing are provided between the electric-controlled fuel injector and the fuel dispenser
Snare is located at the top of the electric-controlled fuel injector, and described sleeve pipe is arranged in the lower section of the sealing ring and is set in described automatically controlled
On fuel injector.
Simulation test control device disclosed in the present application can be implemented as the twocouese cleaning of forward and reverse, can be thorough
It the problem of pipeline and component in cleaning device, dope caused by avoiding as using overlong time adheres to, ensure that point
Analyse the accurate of data.
According to the accompanying drawings to the detailed description of the specific embodiment of the application, those skilled in the art will be more
Above-mentioned and other purposes, the advantages and features of the application are illustrated.
Detailed description of the invention
Some specific embodiments of the application are described in detail by way of example and not limitation with reference to the accompanying drawings hereinafter.
Identical appended drawing reference denotes same or similar part or part in attached drawing.It should be appreciated by those skilled in the art that these
What attached drawing was not necessarily drawn to scale.In attached drawing：
Fig. 1 is the schematic diagram of the simulation test control device under the first cleaning model；
Fig. 2 is the schematic diagram of the simulation test control device under the second cleaning model；
Fig. 3 is the schematic diagram of the simulation test control device under store oil mode；
Fig. 4 is the schematic diagram of the simulation test control device under test model；
Fig. 5 is the schematic diagram in the test portion of simulation test control device；
Fig. 6 is the front view according to one embodiment of the simulation test control device of the application；
Fig. 7 is the left view according to one embodiment of the simulation test control device of the application；
Fig. 8 is the rearview according to one embodiment of the simulation test control device of the application；
Fig. 9 is the structural schematic diagram of electric-controlled fuel injector and fuel dispenser coupling part.
In attached drawing：
1 electric-controlled fuel injector control interface；2 pressure display units；3 knobs；4 quick couplings；5 temperature sensor interfaces；6 temperature
Protection interface；7 temperature sensors；8 nylon tubes；9 elbows；10 fuel dispensers；11 electric-controlled fuel injectors；12 heat blocks；13 into
Mouthful；14 flow-guiding mouths；15 outlets；16 graduated cylinders；17 lifting devices；18 first partitions；19 first passages；20 second partitions；21 fuel oils
Storage facility；22 nylon tubes；23 pump parts；24 nitrogen pressure regulating valves；25 gas supply nylon tubes；26 pressure transmitters；27 second
Container；28 filters；29 the first containers；31 sealing rings；32 fuel dispenser inner holes；100 first valves, 101 first valves
First port, the second port of 102 first valves, the third port of 103 first valves；200 second valves, 201 second valves
The first port of door, the second port of 202 second valves, the third port of 203 second valves；300 third valves, 301 thirds
The first port of valve, the second port of 302 third valves, the third port of 303 third valves；400 the 4th valves；500
Five valves；600 test portions.
Specific embodiment
According to the accompanying drawings to the detailed description of the specific embodiment of the application, those skilled in the art will be more
Above-mentioned and other purposes, the advantages and features of the application are illustrated.
Referring to Fig. 1 to Fig. 4.Present embodiments provide a kind of simulation test control device.The device includes：Nitrogen pressure tune
Regulating device, the first valve 100, the second valve 200, fuel oil storage facility 21, third valve 300, pump part 23 and controller are (not
Show), wherein the first port 101 of first valve 100 is connected to the nitrogen pressure regulating device, first valve 100
Second port 102 be connected to the third port 203 of second valve 200, the third port 103 of first valve 100 with go out
Mouth 15 is connected to；The first port 201 of second valve 200 is connected to the third port 103 of first valve 100, second valve
Door 200 second port 202 be connected to the fuel oil storage facility 21, the third port 203 of second valve 200 with this first
The second port 102 of valve 100 is connected to；The first port 301 of the third valve 300 is connected to the pump part 23, the third valve
The second port 302 of door 300 is connected to the fuel oil storage facility 21, the third port 303 of the third valve 300 and test portion
600 connections；The controller is connect with first valve 100, second valve 200 and the third valve 300 respectively, in the control
Under the control of device, which forms the first circuit and second servo loop, first circuit may include the pumping section
Part 23, the third valve 300, the fuel oil storage facility 21 and second valve 200 and the outlet 15；The second servo loop can wrap
Include nitrogen pressure regulating device, the first valve 100, the second valve 200, fuel oil storage facility 21, third valve 300 and test
Portion 600.
There are two circuits for simulation test control device tool, therefore are able to carry out two-way cleaning, so that in the device
All components and pipeline can thoroughly be cleaned, so as to improve the accuracy of test result, extend making for device
Use the service life.
Optionally, the first port 101 of first valve 100, the first port 201 of second valve 200 and the third
The first port 301 of valve 300 is normally closed port, the second of the second port 102 of first valve 100, second valve 200
The second port 302 of port 202 and the third valve 300 is normally opened port；The third port 103 of first valve 100, this
The third port 203 of two valves 200 and the third port 303 of the third valve 300 are common port.
Under such setting, when simulation test control device is in idle state, that is, controller not work
When making, gas will not enter fuel oil storage facility by nitrogen pressure regulating device, and liquid will not enter combustion by pump part
Oil measure cryopreservation device, to improve the security performance of entire control device.
Optionally, the first valve 100, the second valve 200 and third valve 300 are solenoid valve.It is each by control device control
The unlatching and closure of each port of a valve.It is understood that the layout of each port of each valve be not limited to it is above-mentioned
Setting, can according to need change and variation, is controlled by state of the control device to each port.Control device can
The mode of realization may include：First cleaning model, the second cleaning model, store oil mode, test model.
Be mounted in controller control software perhaps connect with controller with control button by click control software or
Press the various modes of control button trigger controller.
The controller is used for liquid under the first cleaning model or store oil mode via the pump part and the third valve
Door injects in the fuel oil storage facility, and is discharged via second valve and the outlet.The device can also include the 5th valve
Door 500, the 5th valve 500 are arranged between fuel oil storage facility 21 and the second valve 200.5th valve 500 can be by
The solenoid valve of controller control.
Controller is under the second cleaning model or test model for gas via nitrogen pressure regulating device and to be somebody's turn to do
First valve 100 inject the fuel oil storage facility 21 in, so as to by the liquid in the fuel oil storage facility 21 via the third valve
Door 300 is discharged from the test portion 600.
Before test or after testing when having carried out one section, need to carry out the scavenger of instrument internal pipeline and oil storage tank
Make.Fig. 1 is the schematic diagram of the simulation test control device under the first cleaning model.Under the first cleaning model, according to standard
Deployed cleaning solution is placed in the first container 29, and the first cleaning model of trigger controller, simulation test control device passes through
First circuit carries out the first cleaning process.Cleaning solution is pumped into pipeline to third valve 300 by pump part 23 from the first container 29,
The first port 301 and second port 302 of third valve 300 are opened at this time.Cleaning solution from the bottom of fuel oil storage facility 21 into
Enter, through injection after a period of time, cleaning solution fills fuel oil storage facility 21 completely.5th valve is constantly in opening state.
Cleaning solution enters the second valve 200 by the 5th valve 500, at this time the first port 201 and second port of the second valve 200
202 open, and cleaning solution is led in second container 27 by the second valve 200.First cleaning process can clean fuel oil storage
Device 21 and its internal duct.Through the after a period of time or centainly circulation of number, reach cleaning fuel oil storage facility and pipeline
Effect.
Fig. 2 is the schematic diagram of the simulation test control device under the second cleaning model.Under the second cleaning model, gas
It exports from pipeline to nitrogen pressure regulating valve 24, optionally, gas pressure is 263KPa ± 6.8KPa.Gas passes through the first valve
Door 100, at this point, thus the first port 101 of the first valve 100 and 102 mouthfuls of second port openings, gas enter the second valve
200, the third port 203 of the second valve 200 and 202 mouthfuls of second port openings, gas enter in fuel oil storage facility 21.?
Under the pressure of gas, the cleaning solution in fuel oil storage facility 21 passes through the second port 302 and third port of third valve 300
303 enter test portion 600.Cleaning solution enters already installed electric-controlled fuel injector from the fuel dispenser 10 in test portion 600
11, electric-controlled fuel injector 11 is in the state opened at this time, and cleaning solution is ejected from electric-controlled fuel injector 11, until returnable
In；Cleaning solution injection in fuel oil storage facility 21 finishes, and completes the second cleaning process.The main purpose of second cleaning process
It is the cleaning solution that will be stored in the first cleaning process in fuel oil storage facility 21 and pipeline under the action of with gas pressure
It is discharged from simulation test control device, which makes cleaning solution have passed through test portion 600, realizes to test portion 600
Cleaning.It is understood that gas can be nitrogen, it can also be other inert gases.
It can make all components and pipeline of simulation test control device by the first cleaning process and the second cleaning process
It is all thoroughly cleaned, due to the connection relationship in the first circuit and second servo loop, can either realize normal store oil and test,
Two-way cleaning can be carried out using original pipeline again, be increased without additional equipment, it is easy to use, it is easy to operate.
Fig. 3 is the schematic diagram of the simulation test control device under store oil mode.Under store oil mode, the first circuit is utilized
Gasoline is injected to fuel oil storage facility 21.The first container 29 is provided with gasoline, the store oil mode of trigger controller, simulation test control
Device processed carries out store oil by the first circuit.Gasoline is pumped into pipeline to third valve by pump part 23 from the first container 29
300, the first port 301 and second port 302 of third valve 300 are opened at this time.Gasoline is from the bottom of fuel oil storage facility 21
Into through injection after a period of time, gasoline fills fuel oil storage facility 21 completely.5th valve is constantly in opening state.
Gasoline enters the second valve 200 by the 5th valve 500, at this time the first port 201 and second port 202 of the second valve 200
It opens, extra gasoline is led in second container 27 by the second valve 200.When second container 27 has oil, it was demonstrated that fuel oil storage
Cryopreservation device 21 has been filled with gasoline.The store oil process can make fuel oil storage facility 21 full of gasoline, so that test uses.
The liquid used under store oil mode is not limited to gasoline, is also possible to other kinds of oil product or liquid.
Fig. 4 is the schematic diagram of the simulation test control device under test model.Under test model, gas is defeated from pipeline
Gas pressure is adjusted by nitrogen pressure regulating valve 24 out.Optionally, by gas pressure be adjusted to 263KPa ±
6.8KPa.Gas passes through the first valve 100, at this point, the first port 101 of the first valve 100 and 102 mouthfuls of second port openings,
Thus gas enters the second valve 200, the third port 203 of the second valve 200 and 202 mouthfuls of second port openings, and gas is from combustion
The top of oil measure cryopreservation device 21 enters in fuel oil storage facility 21.Under the pressure of the gas, the gasoline in fuel oil storage facility 21
Enter test portion 600 by the second port 302 and third port 303 of third valve 300.Fuel oil of the gasoline from test portion 600
In distributor 10 enter already installed electric-controlled fuel injector 11, at this time electric-controlled fuel injector 11 be in open state, gasoline from
It ejects in electric-controlled fuel injector 11 into measuring device.After cyclic test several times, the flow of electric-controlled fuel injector is carried out
Injury test, to evaluate the quality of gasoline cleaning performance.
Optionally, filter 28 is also provided between pump part 23 and third valve, which can be vapour
Oil turbine filter core is also possible to be able to achieve the other component of filtering function.The filter can play filtering gasoline impurity
Effect.
Fig. 5 is the schematic diagram in the test portion of simulation test control device.Optionally, test portion 600 may include：Fuel oil
Distributor 10, heating device and measuring device.Wherein, the third port 303 of fuel dispenser 10 and the third valve 300 connects
Logical, the lower end surface of the fuel dispenser 10 is also connect at least one electric-controlled fuel injector 11；Heating device is automatically controlled for heating this
Fuel injector 11 and the temperature for detecting the electric-controlled fuel injector 11；The lower section of the electric-controlled fuel injector 11 is arranged in measuring device, for holding
It receives and the liquid sprayed from the electric-controlled fuel injector 11 and measures the amount of the liquid.
It, can be by measuring blocking of the amount of the liquid flowed out from electric-controlled fuel injector to electric-controlled fuel injector using the device
Tendentiousness is judged, the prolonged automatic detection of electric-controlled fuel injector is realized.The device can both be passed through gasoline, can also be with
It is passed through cleaning solution to be cleaned, can be realized multiple functions, improve measurement efficiency and measurement accuracy.
Fig. 6 to Fig. 8 is the view of the different angle of one embodiment of simulation test control device respectively.The nitrogen pressure
Regulating device may include：Gas pressure sensor (not shown), pressure display unit 2 and nitrogen pressure regulating valve 24.Wherein,
Pressure display unit 2 is connect with the gas pressure sensor, the numerical value of the gas pressure for showing nitrogen, pressure display unit 2
It can be liquid crystal display；Nitrogen pressure regulating valve is used to control the pressure of gas；The knob 3 of nitrogen pressure regulating valve 24 and institute
State the ontology connection of nitrogen pressure regulating valve, the size opened for adjusting the nitrogen pressure regulating valve.Gas pressure sensing
Device is connected with the nitrogen pressure regulating valve, detects carrying out nitrogen pressure adjusting to the gas pressure of nitrogen.Optionally,
Fuel oil storage facility 21 is oil storage tank.The ontology of fuel oil storage facility is made of stainless steel.The appearance of fuel oil storage facility
Amount is 2 liters.
Test portion 600 can also include quick coupling 4, and one end of the quick coupling 4 is connected to the fuel oil storage facility 21,
Optionally, simulation test control device may include cabinet body, and cabinet body may include first partition 18, and one end of quick coupling 4 is solid
It is scheduled in the first partition 18.The other end of quick coupling 4 is connected to by nylon tube 8 with the fuel dispenser 10.In replacement electricity
When controlling fuel injector, quick coupling 4 is backed out, fuel dispenser is removed, so that it may electric-controlled fuel injector is replaced, using fast quick access
Head can play the role of quick-replaceable electric-controlled fuel injector.Since nylon tube 8 has certain flexibility, convenient for fuel dispenser
Disassembly and installation.
Optionally, the quantity of electric-controlled fuel injector 11 is two or more, it is preferable that is four.It in this way can be simultaneously to same
Multiple electric-controlled fuel injectors of a model or different model are tested.
The fuel dispenser 10 includes：I-shaped channel and first passage 19, I-shaped channel are arranged in the fuel oil
The inside of distributor, including four ports, four ports are connected to four electric-controlled fuel injectors respectively；First passage 19 is arranged
In the inside of the fuel dispenser 10, the first passage 19 is connected to the center in the I-shaped channel, and described
The opening in one channel 19 is set to the side wall of the fuel dispenser, and the opening is connect with elbow 9, and the elbow 9 passes through pipe
Road is connected to the fuel oil storage facility 21.
Since elbow is located at the top of I-shaped channel center, oil can be made from the center in I-shaped channel along each
A channel flowing, so that the oil mass for being assigned to four electric-controlled fuel injectors 11 is equal.Four ports in I-shaped channel are in
The heart is equidistant, to play the role of evenly distributing gasoline.It, can be simultaneously to 4 automatically controlled sprays using the fuel dispenser
Oily device is tested, and when electric-controlled fuel injector to be measured is less than 4, by other port shutdowns or is blocked.
Fig. 9 is the structural schematic diagram of electric-controlled fuel injector and fuel dispenser coupling part.Electric-controlled fuel injector 11 and fuel oil point
The connection of orchestration 10 is connected by sealing ring 31 and casing 30, and sealing ring 31 is arranged in the top of electric-controlled fuel injector 11 and is set in
Casing 30 is additionally provided on electric-controlled fuel injector 11, below sealing ring, the lower section of the upper section and sealing ring 31 of casing 30 connects
Touching, casing 30 are also set on electric-controlled fuel injector 11.Optionally, casing 30 is brass material.Sealing ring 31 is O-ring seal,
It is preferred that being made of rubber material.Sealing ring 31 and casing 30, which are directly sleeved on electric-controlled fuel injector 11, becomes one with electric-controlled fuel injector
Body.Electric-controlled fuel injector 11 with sealing ring 31 is inserted into together in four fabrication holes of 10 lower end surface of fuel dispenser.Fuel oil
Distributor hole 32 be it is hollow, communicated with the I-shaped channel of fuel dispenser 10.Due to by electric-controlled fuel injector insertion process
There is frictional force, and fabrication hole and 11 way of contact of electric-controlled fuel injector with sealing ring 31 are supersaturation during hole
Contact, therefore sealing ring 31 is easy to slide downwards on electric-controlled fuel injector 11, so as to cause 11 upper seal of electric-controlled fuel injector
31 the phenomenon that becoming unhorizontal, be easy to causeing oil leak.Therefore, casing 30 plays the role of positioning, utilizes the upper section of casing 30
It is contacted with the lower section of sealing ring 31 to withstand sealing ring 31, can prevent sealing ring 31 from falling off or slanting.
Heating device may include：Heat block 12, temperature sensor 7 and temperature protective device.Wherein, heat block 12 has
The through-hole (not shown) of at least one vertical direction, the through-hole are used to accommodate the needle-valve portion of the electric-controlled fuel injector 11, and to the needle
Valve portion heating；Temperature sensor 7 is used to measure the temperature of the heat block 12；Temperature protective device is connect with the temperature sensor,
When being more than predetermined temperature for the temperature in the heat block 12, the power supply of the heating device is cut off.Optionally, heat block 12
For metal block, preferably aluminium block.
The circuit main board (not shown) of heating device passes through temperature sensor interface 5 and temperature protection interface 6 and temperature respectively
It spends sensor 7 and connects (connecting line is not shown).Wherein, temperature sensor 7 transmits sensing data by temperature sensor interface 5
To circuit main board, when the temperature in the heat block 12 is more than predetermined temperature, for example, passing through temperature protection interface at 160 degrees Celsius
6 cut off the power supply.Temperature sensor 7 can be platinum sensor, for example, Pt100 temperature sensor.It is protected using temperature
The measurement of temperature sensor can be cut off when temperature is more than predetermined temperature by protecting interface 6, while cut off adding to heat block 12
Heat, to play a protective role to temperature sensor and entire circuit main board.Device can also include that electric-controlled fuel injector control connects
Mouth 1, the interface are a connector, the control line connection of one end and electric-controlled fuel injector, the control dress of other end electric-controlled fuel injector
Connection is set, control device is used to control the opening or closure in the needle-valve portion of electric-controlled fuel injector.
Heating device is fixed on the second partition 20 of cabinet body, and fuel dispenser passes through screw (not shown) and heating device
Connection, so that electric-controlled fuel injector 11 is fixed between heating device and fuel dispenser.The height of screw is adjustable, from
And the height of heating device and fuel dispenser can be changed, so that the electric-controlled fuel injector of different length be made to be contained in heating device
Hole in.
Optionally, flow-guiding mouth 14 is connected with below the electric-controlled fuel injector 11.Due to electric-controlled fuel injector 11 spray liquid to
External expansion not sprays straight down, therefore flow-guiding mouth 14 is increased below electric-controlled fuel injector 11, so that from automatically controlled spray
The liquid that oily device 11 sprays flows into measuring device along flow-guiding mouth 14 straight down, avoids splash to the outside of measuring device.
Optionally, which can also include：Lifting device 17, for carrying the measuring device, and
And adjust the height of the measuring device.Lifting device 17 can be folding-jib elevating mechanism, control lifting device by knob
Rise or declines.Lifting device also uses various ways in the prior art, for example, scissor-type lifting mechanism, telescopic liter
Descending mechanism etc..Measuring device can be adjusted apart from electronic control injection according to the different height of different measuring devices using lifting device
The distance of device 11.
Optionally, which can be graduated cylinder 16, the graduated cylinder 16 be placed in the vertical direction with the automatically controlled spray
The needle-valve portion of oily device 11 is conllinear.The needle-valve portion of graduated cylinder 16 and electric-controlled fuel injector 11 can collinearly make liquid all flow into graduated cylinder 16
It is interior, so that measurement is more accurate.The corresponding graduated cylinder 16 of each electric-controlled fuel injector 11, to measure from the electric-controlled fuel injector 11
The volume of the liquid of ejection.Using graduated cylinder 16, the liquid independent measurement that each electric-controlled fuel injector 11 can be sprayed, measurement knot
Fruit is more targeted.Optionally, the capacity of graduated cylinder 16 is 100 milliliters.
Optionally, which can be beaker.Beaker is used to receive the amount of the liquid of the electric-controlled fuel injector 11 ejection.
Beaker can be used for receiving the oil that electric-controlled fuel injector 11 sprays during cyclic test；It can also be not need precise measurement every
It is used when the distributive value of a electric-controlled fuel injector 11, what beaker measured is the distributive value of all electric-controlled fuel injectors 11 to be measured at this time,
So as to obtain all electric-controlled fuel injectors 11 distributive value mean value, further to carry out analyzing such electric-controlled fuel injector
Performance.
The simulation test control device can also include import 13 and outlet 15, the import 13 and export 15 respectively with combustion
Oil measure cryopreservation device 21 connects.The import 13 is used for for injecting liquid into fuel oil storage facility 21, outlet 15 by extra liquid
Discharge.
Simulation test control device disclosed in the present application can be inclined to row for the coking rate of electronics cellular type electric-controlled fuel injector
It is tested, two-way cleaning can be carried out using various parts and pipeline of original pipeline to device, so that the pipe inside device
Road and component can adequately be cleaned before being tested, to reduce the contaminated risk of test oil sample, guarantee examination
Test the accuracy of data.
This simulation test control device can be tested and be evaluated and tested to various types of electric-controlled fuel injectors, existing equipment
A kind of specifically electric-controlled fuel injector can only be tested, therefore simulation test control device use scope disclosed in the present application is more
Greatly, function is more.
Heating plate in heat block is fixed with fuel dispenser by two screwed screw rods.The screw rod is independent
Two screws, the screw are inserted directly on heater by the technique through-hole above fuel dispenser, by spanner knob screw rod,
To which fuel dispenser and heating plate be fixed.The fixed form of the structure of the fuel dispenser of the application and heating plate and now
Equipment is different, can test simultaneously multiple electric-controlled fuel injectors, more efficient
The fuel dispenser of the application has the function of length adjustment.Since the specification of electric-controlled fuel injector, each automobile are matched
The specification of part manufacturer manufacture is all different, it is therefore desirable to adapt to different fuel injectors and be tested.In general, the diameter of fuel injector is equal
Identical but length is different, therefore devises height-adjustable function.Using two longer interior hexagonal threaded rods, from fuel oil point
Straight cutting is to entering in heating plate in screwed through-hole on orchestration, and with allen wrench screwing screw, so that fuel dispenser
It is fixed together with heating plate, due to the difference of fuel injector length, the circle number that screw rod screws is also different, side in this way
Formula fixes the electric-controlled fuel injector between fuel dispenser and heating plate, therefore same covering device may be implemented and adapt to not general length
The electric-controlled fuel injector of degree and specification.
In the description of the present application, it is to be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
The instructions such as " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside"
Orientation or positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the application and simplification is retouched
It states, rather than the equipment of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation,
Therefore it should not be understood as the limitation to the application.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the sequence or quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be bright
Show or implicitly include one or more this feature.In the description of the present application, the meaning of " plurality " is two or two
More than, unless otherwise specifically defined.
In this application unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in this application.
The preferable specific embodiment of the above, only the application, but the protection scope of the application is not limited thereto,
Within the technical scope of the present application, any changes or substitutions that can be easily thought of by anyone skilled in the art,
Should all it cover within the scope of protection of this application.Therefore, the protection scope of the application should be with scope of protection of the claims
Subject to.
Claims (10)
1. a kind of simulation test control device, including：Nitrogen pressure regulating device, the first valve, the second valve, fuel oil storage dress
It sets, third valve, pump part and controller, wherein
The first port of first valve is connected to the nitrogen pressure regulating device, the second port of first valve with
The third port of second valve is connected to, the third port and outlet of first valve；
The first port of second valve is connected to the third port of first valve, the second port of second valve
It is connected to the fuel oil storage facility, the third port of second valve is connected to the second port of first valve；
The first port of the third valve is connected to the pump part, and the second port of the third valve and the fuel oil are store
Cryopreservation device connection, the third port of the third valve are connected to test portion；
The controller is connect with first valve, second valve and the third valve respectively, in the controller
Control under, the simulation test control device forms the first circuit and second servo loop, first circuit include the pumping section
Part, the third valve, the fuel oil storage facility, second valve and the outlet；The second servo loop includes described
Nitrogen pressure regulating device, first valve, second valve, the fuel oil storage facility, the third valve and institute
State test portion.
2. simulation test control device according to claim 1, which is characterized in that the first port of first valve,
The first port of second valve and the first port of the third valve are normally closed port, the second end of first valve
The second port of mouth, the second port of second valve and the third valve is normally opened port；The of first valve
The third port of three ports, the third port of second valve and the third valve is common port.
3. simulation test control device according to claim 1 or 2, which is characterized in that the controller is in the first cleaning
Under mode or store oil mode, for liquid to be injected the fuel oil storage facility via the pump part and the third valve
It is interior, and be discharged via second valve and the outlet.
4. simulation test control device according to claim 1 or 2, which is characterized in that the controller is in the second cleaning
Under mode or test model, store for gas to be injected the fuel oil via nitrogen pressure regulating device and first valve
In cryopreservation device, so that the liquid in the fuel oil storage facility is discharged via the third valve from the test portion.
5. simulation test control device according to claim 1, which is characterized in that the test portion includes：
Fuel dispenser is connected to the third port of the third valve, and the lower end surface of the fuel dispenser is also at least one
A electric-controlled fuel injector connection；
Heating device, for heating the electric-controlled fuel injector and detecting the temperature of the electric-controlled fuel injector；With
The lower section of the electric-controlled fuel injector is arranged in measuring device, for accommodating the liquid sprayed from the electric-controlled fuel injector simultaneously
And the amount of the measurement liquid.
6. according to claim 1, simulation test control device described in 2 or 5, which is characterized in that the test portion further includes：It rises
Falling unit for carrying the measuring device, and adjusts the height of the measuring device.
7. simulation test control device according to claim 1 or 2, which is characterized in that connect below the electric-controlled fuel injector
It is connected to flow-guiding mouth.
8. simulation test control device according to claim 1 or 2, which is characterized in that the fuel dispenser includes：
I-shaped channel, is arranged in the inside of the fuel dispenser, including four ports, four ports respectively with four
Electric-controlled fuel injector connection；With
The inside of the fuel dispenser, the center company of the first passage and the I-shaped channel is arranged in first passage
It is logical, and the opening of the first passage is set to the side wall of the fuel dispenser, and the opening is connect with elbow, described curved
Head is connected to by pipeline with the fuel oil storage facility.
9. simulation test control device according to claim 1 or 2, which is characterized in that the nitrogen pressure regulating device
Including：
Nitrogen pressure regulating valve, for controlling the size of nitrogen pressure；
Gas pressure sensor is connected with the nitrogen pressure regulating valve, is carrying out nitrogen pressure adjusting to the gas pressure of nitrogen
Power is detected；With
Display is connect with the gas pressure sensor, the numerical value of the gas pressure for showing nitrogen.
10. simulation test control device according to claim 5, which is characterized in that the electric-controlled fuel injector and the combustion
Sealing ring and casing are provided between oil dispenser, the sealing ring is set in the top of the electric-controlled fuel injector, described sleeve pipe
The lower section of the sealing ring is set and is set on the electric-controlled fuel injector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810508825.2A CN108843475B (en) | 2018-05-24 | 2018-05-24 | Simulation test machine control device for evaluating blockage rate of gasoline engine electric control fuel injector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810508825.2A CN108843475B (en) | 2018-05-24 | 2018-05-24 | Simulation test machine control device for evaluating blockage rate of gasoline engine electric control fuel injector |
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| CN108843475B CN108843475B (en) | 2020-03-31 |
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| CN201810508825.2A Active CN108843475B (en) | 2018-05-24 | 2018-05-24 | Simulation test machine control device for evaluating blockage rate of gasoline engine electric control fuel injector |
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