CN106523231A - Detecting device and method for electric controlled fuel sprayer atomization - Google Patents
Detecting device and method for electric controlled fuel sprayer atomization Download PDFInfo
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- CN106523231A CN106523231A CN201611261152.2A CN201611261152A CN106523231A CN 106523231 A CN106523231 A CN 106523231A CN 201611261152 A CN201611261152 A CN 201611261152A CN 106523231 A CN106523231 A CN 106523231A
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- fuel
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- fuel injector
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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
- F02M65/006—Measuring or detecting fuel leakage of fuel injection apparatus
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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)
Abstract
The invention discloses a detecting device for electric controlled fuel sprayer atomization. The detecting device comprises a movable box-type working table. A fuel tank, a fuel return tank and a fuel filter are arranged in the working table; one end of the fuel filter is connected with the fuel tank through a fuel pipe, the other end of the fuel filter is connected with a fuel spraying pump through a fuel pipe, and an adjusting mechanism used for controlling the fuel-spraying quantity of the fuel spraying pump is arranged on one side of the fuel spraying pump on the working table; a sealed and transparent box-type atomizing chamber is arranged above the working table, a movable high-pressure common-rail pipe used for mounting an electric controlled fuel sprayer and connected with the fuel spraying pump is arranged on one side of the atomizing chamber, and an adjusting supporting frame capable of adjusting the position of the high-pressure common-rail pipe is arranged on the working table; and the detecting device also comprises a monitoring computer and an ECU connected with the monitoring computer and used for controlling on and off of the electric controlled fuel sprayer. The invention also discloses a method for the electric controlled fuel sprayer atomization. According to the detecting device for the electric controlled fuel sprayer atomization, the structure is simple, the detecting demands of the fuel sprayers with different types are met, the detecting accuracy is high, and cost is low.
Description
Technical field
The present invention relates to fuel injector technical field of measurement and test, more specifically, it relates to a kind of atomization detection of electric-controlled fuel injector
Device and detection method.
Background technology
During engine research, development, fuel injector is the vitals in diesel fuel system, and its working condition is (such as mist
Change situation) quality directly affect the service behaviour of diesel engine, with performance, economic performance and discharge performance, therefore, spray
Strict atomized spray experiment is carried out before oily device installation to fuel injector, is to ensure locomotive economic performance, power performance and discharge
The key that performance is normally played.In many characteristics of fuel injector, atomization characteristics and fuel injection characteristic characteristic will be directly affected and be started
The operating characteristic of machine, is electric-controlled fuel injector research, exploitation, trial-production and the key property index checked, in order to detect electronic control injection
The atomization situation of device, current enterprise are tested from external diesel injector performance comprehensive testing platform of introducing mostly, but by
In the high cost of testing stand itself, also, the specificity of testing stand is not enough, so as to affect the accuracy of detection of fuel injector, causes not
General delivery test, failure after sale can be extended to and fed back the application of the aspects such as detection, the testing stand is had using limitation
Property, the demand of enterprise cannot be met.
The content of the invention
The technical problem to be solved in the present invention is the above-mentioned deficiency for prior art, there is provided a kind of compact conformation, is suitable for
Scope is wide, can improve the electric-controlled fuel injector atomization detecting device and detection method of fuel injector detection efficiency and accuracy of detection.
The technical scheme is that such：A kind of electric-controlled fuel injector atomization detecting device, including moveable box
Workbench, is respectively equipped with fuel tank, oil sump tank and fuel filter, described fuel filter one end in described workbench
It is connected with fuel tank by oil pipe, the other end is connected with injection pump by oil pipe, positioned at the one of injection pump on described workbench
Side is provided with the governor motion of control amount of fuel delivered of oil jetting pump；Sealing arrangement and transparent box mist are provided with above described workbench
Change room, described aerochamber side is provided with the mobile high-pressure common rail for installing electric-controlled fuel injector being connected with injection pump
Pipe, is additionally provided with the adjusting bracket of scalable high-pressure common-rail pipe position on described workbench；Described detection means also includes prison
The ECU control units that control computer and the control electric-controlled fuel injector being connected with the monitoring computer are opened and closed.
Used as further improving, described governor motion includes that the driven injection pump being installed on the workbench revolves
The motor for turning and the converter of controlled motor rotating speed, described motor is by the shaft coupling with gear signal disk and injection pump phase
Even, the position sensor of measurable oil spout revolution speed is provided with injection pump.
Further, it is located on described workbench below aerochamber and is provided with the silencing case that the motor is surrounded, institute
The converter stated is located at the front outer wall of the silencing case.
Further, the sustainable offer 24V power supplys being connected with the ECU control units are provided in described workbench
Transducer, described workbench bottom is provided with multiple adjustable pulleys.
Further, described high-pressure common-rail pipe one end is provided with the pressure transducer of measurable common rail pipeline pressure, another
End is provided with and can make the pressure balanced pressure restrictor of common rail pipeline.
Further, described adjusting bracket includes fixed pole, the lateral arrangement being vertically arranged on the workbench for a pair
The moveable cross tube and the horizontal stroke being installed on the workbench for being used to install the high-pressure common-rail pipe in the fixed pole
To the sheer pole of arrangement, the bracing piece being connected with the aerochamber is additionally provided with the fixed pole of the close aerochamber side.
Further, the aspirator of a smokable test mist of oil is provided with the top of described aerochamber, the aspirator leads to
Cross oil pipe to be connected with described oil sump tank, also, the integrated form that mist of oil liquefies is provided between aspirator and oil sump tank
Cleaner liquefaction system.
A kind of electric-controlled fuel injector is atomized detection method, the method be design it is a kind of include workbench, fuel tank, oil sump tank,
The detection means of fuel filter, injection pump, aerochamber, high-pressure common-rail pipe, monitoring computer and ECU control units, by oil
Fuel tank, fuel filter, injection pump, high-pressure common-rail pipe, electric-controlled fuel injector to be detected and oil sump tank are sequentially connected by pipe
To form fuel circuit, the working condition of simulation electric-controlled fuel injector is realized, then will be monitoring computer single with ECU controls by wire harness
Unit, high-pressure common-rail pipe, injection pump and electric-controlled fuel injector to be detected are connected together to control system, and realization automatically controls automatically controlled
The real time operation of fuel injector, detects so as to be rapidly completed the atomization to electric-controlled fuel injector.
Used as further improving, specific operating procedure is as follows：
Step 1, the power supply for connecting detection means, injection pump normal work, from fuel tank draw fuel to fuel filter
Filtered, low-voltage fuel is converted into into high pressure fuel through injection pump then and high-pressure common-rail pipe is delivered to；
Step 2, high-pressure common-rail pipe are by fuel distribution to electric-controlled fuel injector to be checked, and make high pressure fuel in common rail pipeline
Interior pressure accumulation, meanwhile, pressure transducer being set in one end of high-pressure common-rail pipe and is connected with ECU control units, the other end arranges pressure
Limiter is connected with ECU control units, and during work, the real-time rail pressure value in high-pressure common-rail pipe is fed back to ECU by pressure transducer
Control unit, when the rail pressure value in high-pressure common-rail pipe occurs abnormal, the pressure of high-pressure common-rail pipe is entered rapidly by pressure restrictor
Row drainage, makes fuel oil be back in fuel tank by oil pipe；
Step 3, ECU control units send signal to electric-controlled fuel injector to be detected, control the electromagnetic valve of electric-controlled fuel injector
Open and close, the fuel oil in high-pressure common-rail pipe is injected to into aerochamber with optimal injection timing, distributive value and fuel injection characteristic
Interior, fuel injector is capable of achieving the atomization situation of real-time detection electric-controlled fuel injector in aerochamber circulation oil spout work by observation；
Step 4, aspirator is set at the top of aerochamber, is drawn indoor test mist of oil is atomized to collection by oil pipe
Into filter system liquefied, be then back in oil sump tank by oil pipe, reach environmental protection purpose.
Further, in described step 1, the side of injection pump be respectively provided with motor, shaft coupling and converter with
Which is connected with the operating frequency of control injection pump, also, the position sensing of measurable oil spout revolution speed is also set up on injection pump
Device is connected to reach the purpose for automatically controlling distributive value with monitoring computer.
Beneficial effect
The present invention compared with prior art, with advantages below：
1st, present configuration is simple, easy to make, by the inspection for arranging a set of simulation electric-controlled fuel injector normal operating conditions
Device is surveyed, the performances such as fast automatic detecting electric-controlled fuel injector electric shock sound, spray shapes, fuel injector sealing, detection efficiency is realized
Height, testing cost are low；
2nd, the governor motion of detection means of the invention by a scalable amount of fuel delivered of oil jetting pump, there is provided pressure continuously adjustabe
Fuel oil, also, adjustable adjusting bracket is set, when can measure and control fuel injector and opening injection on high-pressure common-rail pipe
Common rail pipeline pressure, meet the detection requirement of different model electric-controlled fuel injector, usage range is wide；
3rd, detection means of the invention arbitrarily can be moved at the scene, meet the demand of different occasions, can operate with diesel engine
Detection of the electric-controlled fuel injector at aspects such as research, production, maintenance services, can be used cooperatively with the long tube of BOSCH or independent development
Carry out the fuel injection characteristic test of common rail system, it is easy to popularization and application, while improving fuel injector detection efficiency, can also avoid because setting
The problem that product development task is delayed caused by standby reason；
4th, present configuration is compact, and rationally, whole common rail system software independent development, development cost are low, make for flexible design
With simple, the atomization characteristics of detection electric-controlled fuel injector are directed to, its accuracy of detection is higher.
Description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of governor motion and injection pump cooperation in the present invention；
Fig. 3 is the structural representation of mesohigh common rail pipe of the present invention；
Fig. 4 is the structural representation of aerochamber in the present invention；
Fig. 5 is the structural representation of adjusting bracket in the present invention.
Wherein：1- workbench, 2- fuel tanks, 3- oil sump tanks, 4- fuel filters, 5- injection pumps, 6- aerochambers, 7- are automatically controlled
Fuel injector, 8- high-pressure common-rail pipes, 9- adjusting brackets, 10- monitoring computers, 11-ECU control units, 12- motors, 13- converters,
14- shaft couplings, 15- position sensors, 16- silencing cases, 17- transducers, 18- pulleys, 19- pressure transducers, 20- pressure limits
Device, 21- aspirators, 9a- fixed poles, 9b- cross tubes, 9c- sheer poles, 9d- bracing pieces.
Specific embodiment
The present invention is described further for specific embodiment in below in conjunction with the accompanying drawings.
Refering to Fig. 1-5, a kind of electric-controlled fuel injector atomization detecting device of the present invention, including moveable chamber type workstation 1,
The workbench 1 is rectangle and hollow casing, in workbench 1 is respectively equipped with fuel tank 2, oil sump tank 3 and fuel filter
Clear device 4, fuel tank 2 are used to store fuel oil, and oil sump tank 3 is used to store the waste oil for reclaiming, and one end of fuel filter 4 passes through oil pipe
It is connected with fuel tank 2, the other end is connected with injection pump 5 by oil pipe, low-voltage fuel can be converted into by high compression ignition by injection pump 5
Oil, is provided with the governor motion of control 5 distributive value of injection pump, on workbench 1 by the governor motion positioned at the side of injection pump 5
The distributive value of injection pump 5 is adjusted, so as to the distributive value of scalable electrical control oil spray pump 5 to be detected, to meet different model oil spout
The detection of device；Sealing arrangement and transparent box aerochamber 6 are provided with above workbench 1, are easy to observe the atomization of fuel injector
Situation, is provided with the mobile high-pressure common rail pipe for installing electric-controlled fuel injector 7 being connected with injection pump 5 in 6 side of aerochamber
8, the high-pressure common-rail pipe 8 had both played fuel distribution, may also function as the effect of pressure accumulation, on workbench 1 was additionally provided with scalable
The frame-type adjusting bracket 9 for supporting high-pressure common-rail pipe 8 and fixed oil spout of 8 position of high-pressure common-rail pipe, by adjusting bracket 9
The position of high-pressure common-rail pipe 8 is adjusted in order to install the fuel injector of different model；The detection means also includes 10 He of monitoring computer
The ECU control units 11 that the control electric-controlled fuel injector 7 being connected with the monitoring computer 10 is opened and closed, monitoring computer 10 are mainly used in ECU
Parameter setting and the prison such as the writing with a brush dipped in Chinese ink of 11 data of control unit, the pressure of high-pressure common-rail pipe 8, the rotating speed of injection pump 5, fuel injection pulse
Control.Present configuration is simple, easy to make, by arranging a set of detection dress for simulating 7 normal operating conditions of electric-controlled fuel injector
Put, realize the performances such as 7 electric shock sound of fast automatic detecting electric-controlled fuel injector, spray shapes, fuel injector sealing, detection efficiency is high,
Testing cost is low.
Governor motion includes 12 turns of the motor 12 and controlled motor of the rotation of driven injection pump 5 being installed on workbench 1
Speed converter 13, by arrange converter 13 parameter can controlled motor 12 frequency and rotating speed, motor 12 by band tooth
The shaft coupling 14 of wheel signal panels is connected with injection pump 5, and stable drive is provided with the position of 5 rotating speed of measurable injection pump on injection pump 5
Sensor 15 is put, the position sensor 15 is located at the joining place of injection pump 5 and shaft coupling 14, during work, gather turning for injection pump 5
Fast signal simultaneously passes to monitoring computer 10, realizes monitor in real time or change parameter；Positioned at the lower section of aerochamber 6 on workbench 1
The silencing case 16 that motor 12 is surrounded is provided with, the silencing case 16 is adapted with the size shape of aerochamber 6, prevents sound pollution,
Wherein, converter 13 is located at the front outer wall of the silencing case 16, is easy to operator's setup parameter.
The transducer 17 of the sustainable offer 24V power supplys being connected with ECU control units 11 is provided in workbench 1, can
High voltage power supply is converted into into voltage source, multiple adjustable pulleys 18 is provided with 1 bottom of workbench, be easy to promote whole detection
Device, and the pulley 18 can correspondingly adjust and whole detection means is fixed at the scene somewhere, in preventing detection process,
Detection means is freeed and is rocked；The pressure transducer 19 of measurable common rail pipeline pressure, the other end are provided with 8 one end of high-pressure common-rail pipe
Be provided with can make the pressure balanced pressure restrictor 20 of common rail pipeline, pressure transducer 19 and pressure restrictor 20 by wire harness with
ECU control units 11 are connected, it is ensured that the accuracy of signal transmission；Its adjusting bracket 9 includes a pair being vertically arranged on workbench 1
Fixed pole 9a, moveable cross tube 9b and the installation for being used to install high-pressure common-rail pipe 8 being transversely arranged in fixed pole 9a
The sheer pole 9c of the lateral arrangement on the workbench 1, wherein, cross tube 9b and sheer pole 9c are parallel to each other, and operationally, pass through
The change in location that cross tube 9b is capable of achieving high-pressure common-rail pipe 8 and electric-controlled fuel injector 7 is adjusted, in determining near 6 side of aerochamber
The bracing piece 9d being connected with aerochamber 6 is additionally provided with bar 9a, the two ends of bracing piece 9d are separately fixed at aerochamber 6 and cross bar 9a
On, improve the stability of adjusting bracket 9；The aspirator 21 of a smokable test mist of oil is provided with the top of aerochamber 6, this is taken out
Inhale device 21 to be connected with oil sump tank 3 by oil pipe, also, be provided with what mist of oil liquefied between aspirator 21 and oil sump tank 3
The cleaner liquefaction system (not shown) of integrated form, will be recycled to oil sump tank 3 after test oil spray film, prevent from testing mist of oil
Contaminated air, meanwhile, the outside of electric-controlled fuel injector 7 is provided with spill port and is connected with collection box 3 by oil pipe, during oil spout,
The fuel oil revealed at the needle-valve targeting part of fuel injector, control sleeve and plunger gap is back to oil return by spill port and oil pipe
In case 3, prevent fuel oil from revealing pollution environment, be effectively saved testing cost.
A kind of electric-controlled fuel injector is atomized detection method, and the method is that design is a kind of includes workbench 1, fuel tank 2, oil sump tank
3rd, the detection dress of fuel filter 4, injection pump 5, aerochamber 6, high-pressure common-rail pipe 8, monitoring computer 10 and ECU control units 11
Put, by oil pipe by fuel tank 2, fuel filter 4, injection pump 5, high-pressure common-rail pipe 8, electric-controlled fuel injector 7 to be detected and
Oil sump tank 3 is sequentially connected to form fuel circuit, realizes the working condition of simulation electric-controlled fuel injector 7, then will be supervised by wire harness
Control computer 10 is connected together to ECU control units 11, high-pressure common-rail pipe 8, injection pump 5 and electric-controlled fuel injector 7 to be detected
Control system, realization automatically control the real time operation of electric-controlled fuel injector 7, examine so as to be rapidly completed the atomization to electric-controlled fuel injector 7
Survey, specific operating procedure is as follows：
Step 1, the power supply for connecting detection means, 5 normal work of injection pump, from 2 draw fuel of fuel tank to fuel cleaning
Device 4 is filtered, and low-voltage fuel is converted into high pressure fuel through injection pump 5 then and high-pressure common-rail pipe 8 is delivered to；
Step 2, high-pressure common-rail pipe 8 are by fuel distribution to electric-controlled fuel injector 7 to be checked, and make high pressure fuel in common rail pipe
Pressure accumulation in road, meanwhile, pressure transducer 19 being set in one end of high-pressure common-rail pipe 8 and is connected with ECU control units 11, the other end sets
Put pressure restrictor 20 to be connected with ECU control units 11, during work, pressure transducer 19 is by the real-time rail in high-pressure common-rail pipe 8
Pressure value feeds back to ECU control units 11, and when the rail pressure value in high-pressure common-rail pipe 8 occurs abnormal, pressure restrictor 20 rapidly will
The pressure of high-pressure common-rail pipe 8 carries out drainage, fuel oil is back in fuel tank 2 by oil pipe；
Step 3, ECU control units 11 send signal to electric-controlled fuel injector 7 to be detected, control the electricity of electric-controlled fuel injector 7
Magnet valve is opened and closed, and the fuel oil in high-pressure common-rail pipe 8 is injected to mist with optimal injection timing, distributive value and fuel injection characteristic
Change in room 6, fuel injector is capable of achieving the atomization of real-time detection electric-controlled fuel injector 7 in the circulation oil spout work of aerochamber 6 by observation
Situation；
Step 4, aerochamber 6 top arrange aspirator 21, by oil pipe by aerochamber 6 test mist of oil draw
Liquefied to integrated filter system, be then back in oil sump tank 3 by oil pipe, reached the purpose of environmental protection.
Preferably, in step 1, the side of injection pump 5 be respectively provided with motor 12, shaft coupling 14 and converter 13 and its
It is connected with the operating frequency of control injection pump 5, also, the position sensing of 5 rotating speed of measurable injection pump is also set up on injection pump 5
Device 15 is connected to reach the purpose for automatically controlling distributive value with monitoring computer 10.
Above-described is only the preferred embodiment of the present invention, it should be pointed out that for a person skilled in the art,
On the premise of without departing from present configuration, some deformations and improvement can also be made, these are implemented all without the impact present invention
Effect and practical applicability.
Claims (10)
1. a kind of electric-controlled fuel injector atomization detecting device, it is characterised in that including moveable chamber type workstation (1), described
Fuel tank (2), oil sump tank (3) and fuel filter (4), described fuel filter (4) are respectively equipped with workbench (1)
End is connected with fuel tank (2) by oil pipe, and the other end is connected with injection pump (5) by oil pipe, is located on described workbench (1)
The side of injection pump (5) is provided with the governor motion of control injection pump (5) distributive value；Sealing is provided with above described workbench (1)
Arrangement and transparent box aerochamber (6), described aerochamber (6) side be provided be connected with injection pump (5) for installing
The mobile high-pressure common rail pipe (8) of electric-controlled fuel injector (7), is additionally provided with scalable high-pressure common-rail pipe on described workbench (1)
(8) adjusting bracket (9) of position；Described detection means is also included monitoring computer (10) and is connected with the monitoring computer (10)
The ECU control units (11) that control electric-controlled fuel injector (7) is opened and closed.
2. a kind of electric-controlled fuel injector atomization detecting device according to claim 1, it is characterised in that described governor motion
The motor (12) that rotates including the driven injection pump (5) being installed on the workbench (1) and controlled motor (12) rotating speed
Converter (13), described motor (12) are connected with injection pump (5) by the shaft coupling with gear signal disk (14), in injection pump
(5) it is provided with the position sensor (15) of measurable injection pump (5) rotating speed.
3. a kind of electric-controlled fuel injector atomization detecting device according to claim 2, it is characterised in that described workbench
(1) it is located on below aerochamber (6) and is provided with the silencing case (16) that the motor (12) is surrounded, described converter (13) position
In the front outer wall of the silencing case (16).
4. a kind of electric-controlled fuel injector atomization detecting device according to claim 1, it is characterised in that described workbench
(1) transducer (17) of the sustainable offer 24V power supplys being connected with the ECU control units (11), described work are provided in
Make platform (1) bottom and be provided with multiple adjustable pulleys (18).
5. a kind of electric-controlled fuel injector atomization detecting device according to any one in claim 1-4, it is characterised in that institute
High-pressure common-rail pipe (8) one end stated is provided with the pressure transducer (19) of measurable common rail pipeline pressure, and the other end is provided with can be made altogether
The pressure restrictor (20) of rail pipeline pressure balance.
6. a kind of electric-controlled fuel injector atomization detecting device according to claim 5, it is characterised in that described adjusting bracket
(9) it is vertically arranged in the fixed pole (9a) on the workbench (1), is transversely arranged on may move in the fixed pole (9a) including a pair
The cross tube (9b) for installing the high-pressure common-rail pipe (8) and the lateral arrangement that is installed on the workbench (1)
Sheer pole (9c), is additionally provided with the reinforcement being connected with the aerochamber (6) in the fixed pole (9a) of the close aerochamber (6) side
Bar (9d).
7. a kind of electric-controlled fuel injector atomization detecting device according to claim 1, it is characterised in that described aerochamber
(6) aspirator (21) of a smokable test mist of oil is provided with the top of, the aspirator (21) is by oil pipe and described oil return
Case (3) is connected, also, the cleaner liquid of the integrated form that mist of oil liquefies is provided between aspirator (21) and oil sump tank (3)
Change system.
8. a kind of electric-controlled fuel injector is atomized detection method, it is characterised in that the method is that design is a kind of includes workbench (1), combustion
Fuel tank (2), oil sump tank (3), fuel filter (4), injection pump (5), aerochamber (6), high-pressure common-rail pipe (8), monitoring computer
(10) and ECU control units (11) detection means, by oil pipe by fuel tank (2), fuel filter (4), injection pump
(5), high-pressure common-rail pipe (8), electric-controlled fuel injector (7) to be detected and oil sump tank (3) are sequentially connected to form fuel circuit, real
The working condition of electric-controlled fuel injector (7) is simulated now, then by wire harness by monitoring computer (10) and ECU control units (11), high
Pressure common rail pipe (8), injection pump (5) and electric-controlled fuel injector (7) to be detected are connected together to control system, realize automatically controlling
The real time operation of electric-controlled fuel injector (7), detects so as to be rapidly completed the atomization to electric-controlled fuel injector (7).
9. a kind of electric-controlled fuel injector according to claim 9 is atomized detection method, it is characterised in that specific operating procedure
It is as follows：
Step 1, the power supply for connecting detection means, injection pump (5) normal work, from fuel tank (2) draw fuel to fuel cleaning
Device (4) is filtered, and low-voltage fuel is converted into high pressure fuel through injection pump (5) then and high-pressure common-rail pipe (8) is delivered to；
Step 2, high-pressure common-rail pipe (8) are by fuel distribution to electric-controlled fuel injector (7) to be checked, and make high pressure fuel in common rail pipe
Pressure accumulation in road, meanwhile, pressure transducer (19) is set in one end of high-pressure common-rail pipe (8) and is connected with ECU control units (11), separately
One end is arranged pressure restrictor (20) and is connected with ECU control units (11), and during work, pressure transducer (19) is by high-pressure common-rail pipe
(8) the real-time rail pressure value in feeds back to ECU control units (11), when the rail pressure value in high-pressure common-rail pipe (8) occurs abnormal, pressure
The pressure of high-pressure common-rail pipe (8) is carried out drainage rapidly by force-limiting device (20), makes fuel oil be back to fuel tank (2) by oil pipe
It is interior；
Step 3, ECU control units (11) send signal to electric-controlled fuel injector (7) to be detected, control electric-controlled fuel injector (7)
Electromagnetic valve is opened and closed, and the fuel oil in high-pressure common-rail pipe (8) is sprayed into optimal injection timing, distributive value and fuel injection characteristic
To in aerochamber (6), fuel injector is capable of achieving real-time detection electronic control injection by observation in aerochamber (6) circulation oil spout work
The atomization situation of device (7)；
Step 4, aerochamber (6) top arrange aspirator (21), by oil pipe by aerochamber (6) test mist of oil inhale
Take to integrated filter system and liquefied, be then back in oil sump tank (3) by oil pipe, reach the purpose of environmental protection.
10. a kind of electric-controlled fuel injector according to claim 9 is atomized detection method, it is characterised in that described step 1
In, it is coupled to control spray motor (12), shaft coupling (14) and converter (13) to be respectively provided with the side of injection pump (5)
The operating frequency of oil pump (5), also, the position sensor (15) of measurable injection pump (5) rotating speed is also set up on injection pump (5)
It is connected to reach the purpose for automatically controlling distributive value with monitoring computer (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611261152.2A CN106523231A (en) | 2016-12-30 | 2016-12-30 | Detecting device and method for electric controlled fuel sprayer atomization |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611261152.2A CN106523231A (en) | 2016-12-30 | 2016-12-30 | Detecting device and method for electric controlled fuel sprayer atomization |
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| CN106523231A true CN106523231A (en) | 2017-03-22 |
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| CN201611261152.2A Pending CN106523231A (en) | 2016-12-30 | 2016-12-30 | Detecting device and method for electric controlled fuel sprayer atomization |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107449697A (en) * | 2017-08-01 | 2017-12-08 | 昆明理工大学 | A kind of laser testing device and method of the fuel-flooded atomizing particle dispersing characteristic based on fluorescent tracing |
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Application publication date: 20170322 |