CN205618280U - High -voltage common rail fuel injector single sprays measuring device - Google Patents
High -voltage common rail fuel injector single sprays measuring device Download PDFInfo
- Publication number
- CN205618280U CN205618280U CN201620422828.0U CN201620422828U CN205618280U CN 205618280 U CN205618280 U CN 205618280U CN 201620422828 U CN201620422828 U CN 201620422828U CN 205618280 U CN205618280 U CN 205618280U
- Authority
- CN
- China
- Prior art keywords
- piston
- cylinder body
- common rail
- cylinder
- high pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Fuel-Injection Apparatus (AREA)
Abstract
The utility model provides a high -voltage common rail fuel injector single sprays measuring device, including the adapter that connects gradually, upper base, organism and lower part base, be equipped with the fog dispersal ware in the upper base, the adapter is connected with the fog dispersal ware, be equipped with the vent valve on the lateral wall of organism, it measures jar and displacement sensor to be equipped with the piston in the organism, the jar is measured including measuring cylinder body and piston to the piston, the piston is installed for the close -fitting with the measurement cylinder body, the fog dispersal ware is connected with the measurement cylinder body, the piston of jar is measured to the piston and displacement sensor's measuring staff is connected, measure the inside wall of cylinder body and seted up the draining groove, be equipped with the drain tap on the draining groove, the vent valve passes through drain tap and draining groove and measurement cylinder body intercommunication, be equipped with the displacement signal tuned plate in the base of lower part, displacement signal sensor and displacement signal tuned plate electricity are connected. The utility model discloses direct carry out the single measurement to sprayer spun oil mass, need not through the intermediate receptacle, avoid the fluid adhesion on the lateral wall of intermediate receptacle and influence measuring result, improvement measuring accuracy.
Description
Technical field
This utility model belongs to a kind of high pressure common rail injector single injection event of oil measurement device, more specifically design
Measurement apparatus.
Background technology
High-pressure common rail spraying technique is the main flow in car combustion engine field, and this device can realize spraying high-pressure common rail
The single distributive value of oil device and fuel injection characteristic, thus analyze the homogeneity of fuel injector, concordance quality, this dress
Put major function and measure high pressure common rail injector distributive value and fuel injection characteristic exactly, be characterized in accurately measuring
The least injection in every spraying cycle, so it is necessary to the research and development of high-pressure common rail spraying technique and application
Technological means.
Domestic existing measurement apparatus mostly is employing multi-injection, all oil masses sprayed by fuel injector with measurer
Collect, then the mode being averaging total oil mass calculates oil injector single distributive value.
This mode belongs to measurement indirectly, has some limitation following: 1, collect the measurer inwall meeting of oil mass
During adhering to a certain amount of measurement fluid, and measurement, fluid easily produces bubble, has the most both affected measurement essence
Degree, needs again affect measurement efficiency suitable stabilization time during measurement；2, cannot be carried out single measurement,
So the homogeneity of fuel injector injection, concordance quality cannot be analyzed；3, cannot measure in every spraying cycle
Multi-injection.
Utility model content
In order to solve above-mentioned technical problem, this utility model provides one can carry out fuel injector ejection oil mass directly
Connect single measurement and measurement result accurate high pressure common rail injector single injection event measurement apparatus.
The technical solution of the utility model is as follows:
A kind of high pressure common rail injector single injection event measurement apparatus, including the adapter being sequentially connected with, top base
Seat, body and lower base, be provided with defogger, described adapter and defogger and connect in described top base,
The sidewall of described body is provided with draining valve, is provided with piston and measures cylinder and displacement transducer, institute in described body
State piston to measure cylinder and include measuring cylinder body and piston, described piston and to measure cylinder body be that close-fitting is installed, described in disappear
Day with fog and measurement cylinder body connect, and the measuring staff of piston and displacement transducer that described piston measures cylinder connects, described
The medial wall measuring cylinder body offers drain pan, and described drain pan is provided with drain tap, and described draining valve passes through
Drain tap connects with measurement cylinder body with drain pan, is provided with displacement signal tuned plate, institute's rheme in described lower base
Shifting signal sensor and the electrical connection of displacement signal tuned plate.
It has the beneficial effect that fuel injector passes through adapter and is connected with top base, and fuel injector is sprayed by adapter
The oil mass entered, after defogger processes, injection into pistion is measured in cylinder, owing to spraying into the pressure of oil, makes to live
Plug is measured the piston position of cylinder and is moved down, and the shift value of displacement sensor piston position, by displacement signal solution
Tuned plate exports, and can calculate, by the shift value of piston displacement, the oil mass that fuel injector sprays into.Piston is with tested
When the size of fluid amount moves up and down, make tested fluid will not be sent out by piston and the gap measuring cylinder body
Raw leakage.After being measured, piston leans on spring reset, and draining valve is opened, and piston measures the fluid warp in cylinder
Drain line is discharged by draining valve.
This utility model directly carries out single measurement to the oil mass of fuel injector ejection, and the fluid that fuel injector sprays is straight
Tap into and measure into measurement apparatus, it is not necessary to through intermediate receptacle, it is to avoid fluid sticks to the side of intermediate receptacle
Affect measurement result on wall, improve the accuracy measured.
In some embodiments, described top base is provided with temperature sensor, the survey of described temperature sensor
Temperature portion is positioned in measurement cylinder body.
It has the beneficial effect that the temperature measurement fraction of temperature sensor is positioned at measurement cylinder body, measures measured oil in real time
The temperature of liquid, is converted into the density of tested fluid by the temperature of tested fluid, it is simple to the later stage calculates injection oil
The volume of liquid.
In some embodiments, described top base is provided with oil drain solenoid valve, entering of described oil drain solenoid valve
Hydraulic fluid port connects with the bottom measuring cylinder body, and the oil-out of described oil drain solenoid valve is connected with draining valve.
After it has the beneficial effect that oil drain solenoid valve controls the oil entrance measurement cylinder body that fuel injector sprays into, it is to maintain
Or discharged by this oil drain solenoid valve in measuring cylinder body, when spraying into oil mass and being too much, for overflow fluid,
Ensure to measure being smoothed out of work.
In some embodiments, between measuring staff and the piston end surface of piston measurement cylinder of institute's displacement sensors
It is provided with spring.
It has the beneficial effect that, when piston moves up and down, measuring staff also makees corresponding change in displacement, displacement signal
Solve tuned plate and measure the change in displacement of measuring staff, be piston and move up and down change in displacement value；After measurement terminates, live
Plug is measured the piston of cylinder and is relied on the elastic force of spring to reset.
In some embodiments, described piston is measured the both sides of cylinder and is provided with drain line, and described piston is measured
Cylinder is connected with draining valve by drain line.
After it has the beneficial effect that measurement terminates, piston measures the fluid in cylinder by drain line by draining valve
Discharge.
In some embodiments, described adapter is threadeded with top base.
It has the beneficial effect that threaded the most firm.
In some embodiments, described top base is connected with body by hexagon socket cap head screw.
It has the beneficial effect that connected by hexagon socket cap head screw the most firm.
In some embodiments, the bottom of described lower base is provided with base.
It has the beneficial effect that lower base passes through floor installation on testboard bay.
In some embodiments, described base is provided with hole, four location, and described base passes through four location
Hole is fixed on testboard bay.
It is had the beneficial effect that and can this measurement apparatus be arranged on testboard bay accurately by hole, location.
Accompanying drawing explanation
Fig. 1 is a kind of high pressure common rail injector single injection event measurement apparatus of this utility model one embodiment
Cross-sectional schematic；
Fig. 2 is a kind of high pressure common rail injector single injection event measurement apparatus of this utility model one embodiment
Exploded perspective view；
Fig. 3 is a kind of high pressure common rail injector single injection event measurement apparatus of this utility model one embodiment
Outside schematic diagram.
The title of corresponding component represented by numeral in figure:
1. adapter, 2. defogger, 3. top base, 4. oil drain solenoid valve, 41. oilers, 42. oil-outs,
5. temperature sensor, 6. piston measure cylinder, 61. measure cylinder bodies, 611. drain pans, 6111. drain taps, 62. pistons,
7. displacement transducer, 71. measuring staffs, 72. springs, 8. body, 9. draining valve, 10. lower base, 11. displacement letters
Number solve tuned plate, 12. bases, 121. location hole, 13. fuel injectors.
Detailed description of the invention
As Figure 1-3, the open a kind of high pressure common rail injector single injection event measurement apparatus of this utility model, bag
Include adapter 1, top base 3, body 8 and the lower base 10 being sequentially connected with.Adapter 1 part is positioned at
In top base 3.It is provided with defogger 2, adapter 1 and defogger 2 in top base 3 to connect.Body 8
Sidewall be provided with draining valve 9.It is provided with piston in body 8 and measures cylinder 6 and displacement transducer 7.Piston is measured
Cylinder 6 includes measuring cylinder body 61 and piston 62, piston 62 and measurement cylinder body 61 and installs for close-fitting.Defogger 2
Connect with measuring cylinder body 61.The measuring staff 71 of piston 62 and displacement transducer 7 that piston measures cylinder 6 connects.
The medial wall measuring cylinder body 61 offers drain pan 611, and drain pan 611 offers drain tap 6111.Row
Fuel tap 9 is connected with measuring cylinder body 61 with drain pan 611 by drain tap 6111.Draining valve 9 passes through drain tap
6111 connect with drain pan 611, and then are connected with measuring cylinder body 61 by drain pan 611.Lower base 10
Inside it is provided with displacement signal solution tuned plate 11.Displacement transducer 7 and displacement signal solution tuned plate 11 electrically connect.
Fuel injector 13 is connected with top base 3 by adapter 1, and fuel injector 13 is sprayed into by adapter 1
Oil mass, after defogger 2 processes, injection into pistion is measured in cylinder 6, owing to spraying into the pressure of oil, makes
Piston is measured the piston position of cylinder 6 and is moved down, and the shift value of piston position measured by displacement transducer 7, by displacement
Signal solution tuned plate 11 exports, and can calculate, by the shift value of piston displacement, the oil mass that fuel injector 13 sprays into.
In reality is measured, after draining valve 9 oil extraction terminates, piston measures top land and the measurement of cylinder 6
Leaving the remaining oil reservoir of about 0.5mm on cylinder body between section, its thickness is the pass by oil drain solenoid valve 4
Close what the moment accurately controlled.Owing to being filled with measurement fluid all the time between piston and measurement cylinder upper end face,
Which ensure that certainty of measurement.
Piston is measured the top land of cylinder 6 and measures the oil leaving one layer of about 0.5mm between cylinder upper end face
Layer, for dm, fuel injector 13 after end of injection, the position of piston is df, then due to tested spraying into of fluid
Cause the displacement d=d of pistonf-dm, the sectional area of piston is A, the volume V=d × A of tested fluid.
After being measured, piston leans on spring reset, and draining valve 9 is opened, and piston measures the fluid warp in cylinder 6
Drain line is discharged by draining valve 9.
This utility model directly carries out single measurement to the oil mass of fuel injector 13 ejection, and fuel injector 13 sprays
Fluid is directly entered measurement apparatus and measures, it is not necessary to through intermediate receptacle, it is to avoid fluid sticks to middle appearance
Affect measurement result on the sidewall of device, improve the accuracy measured.
In the present embodiment, piston measurement cylinder 6 includes measuring cylinder body 61 and piston 62, piston 62 and survey
Amount cylinder body 61 is installed for close-fitting.When piston 62 moves up and down with the size of measured oil liquid measure, make measured oil
Liquid will not be revealed by piston 62 and the gap measuring cylinder body 61.Top base 3 is provided with oil extraction electricity
Magnet valve 4 and temperature sensor 5.The oiler 41 of oil drain solenoid valve 4 connects with the bottom measuring cylinder body 61,
The oil-out 42 of oil drain solenoid valve 4 connects with draining valve 9.Oil drain solenoid valve 4 controls fuel injector 13 and sprays into
Oil enter and measure after cylinder body 61, in being held in measuring cylinder body 61 or by this oil drain solenoid valve 4 row
Go out, when spraying into oil mass and being too much, for overflow fluid, it is ensured that measure being smoothed out of work.Temperature sensing
The temperature measurement fraction of device 5 is positioned at measurement cylinder body 1, measures the temperature of tested fluid in real time, by tested fluid
Temperature be converted into the density of tested fluid, it is simple to the later stage calculates the weight of injection fluid.Displacement transducer 7
Measuring staff 71 and piston measure cylinder 6 piston end surface between be provided with spring 72.When piston moves up and down, survey
Corresponding change in displacement also made by bar, and displacement signal solution tuned plate 11 is measured the change in displacement of measuring staff, is on piston
Lower mobile change in displacement value；After measurement terminates, piston is measured the piston of cylinder 6 and is relied on the elastic force of spring to carry out again
Position.Piston is measured the both sides of cylinder 6 and is provided with drain line, and piston measures cylinder 6 by drain line and draining valve 9
Connection.After measurement terminates, the fluid that piston is measured in cylinder 6 is discharged by draining valve 9 by drain line.Suitable
Orchestration 1 is threadeded with top base 3.Threaded the most firm.Top base 3 is by interior hexagonal circle
Chapiter screw is connected with body 8.Connected the most firm by hexagon socket cap head screw.Lower base 10
Bottom is provided with base 12.Lower base 10 is arranged on testboard bay by base 12.Base 12 is provided with
Hole 121, four location, base 12 is fixed on testboard bay by hole 121, four location.By hole, location
This measurement apparatus can be arranged on testboard bay by 121 accurately.
Above-described is only embodiments more of the present utility model, for those skilled in the art,
On the premise of creating design without departing from this utility model, it is also possible to making some deformation and improvement, these are all
Belong to protection domain of the present utility model.
Claims (9)
1. a high pressure common rail injector single injection event measurement apparatus, it is characterised in that include being sequentially connected with
Adapter, top base, body and lower base, be provided with defogger, described adaptation in described top base
Device and defogger connect, and the sidewall of described body is provided with draining valve, be provided with piston and measure cylinder in described body
And displacement transducer, described piston is measured cylinder and is included that measurement cylinder body and piston, described piston and measurement cylinder body are
Close-fitting is installed, and described defogger and measurement cylinder body connect, and described piston measures piston and the displacement transducer of cylinder
Measuring staff connect, the medial wall of described measurement cylinder body offers drain pan, and described drain pan is provided with drain tap,
Described draining valve is connected with measurement cylinder body with drain pan by drain tap, is provided with displacement letter in described lower base
Number tuned plate, described displacement signal sensor and the electrical connection of displacement signal tuned plate.
High pressure common rail injector single injection event measurement apparatus the most according to claim 1, it is characterised in that
Described top base is provided with temperature sensor, and the thermometric portion of described temperature sensor is positioned in measurement cylinder body.
High pressure common rail injector single injection event measurement apparatus the most according to claim 1, it is characterised in that
Described top base is provided with oil drain solenoid valve, and the oiler of described oil drain solenoid valve and the bottom measuring cylinder body connect
Logical, the oil-out of described oil drain solenoid valve is connected with draining valve.
High pressure common rail injector single injection event measurement apparatus the most according to claim 1, it is characterised in that
It is provided with spring between the piston end surface of the measuring staff of institute's displacement sensors and piston measurement cylinder.
High pressure common rail injector single injection event measurement apparatus the most according to claim 1, it is characterised in that
Described piston is measured the both sides of cylinder and is provided with drain line, and described piston measures cylinder by drain line and draining valve
Connection.
High pressure common rail injector single injection event measurement apparatus the most according to claim 1, it is characterised in that
Described adapter is threadeded with top base.
High pressure common rail injector single injection event measurement apparatus the most according to claim 1, it is characterised in that
Described top base is connected with body by hexagon socket cap head screw.
High pressure common rail injector single injection event measurement apparatus the most according to claim 1, it is characterised in that
The bottom of described lower base is provided with base.
High pressure common rail injector single injection event measurement apparatus the most according to claim 8, it is characterised in that
Described base is provided with hole, four location, and described base is fixed on testboard bay by hole, four location.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620422828.0U CN205618280U (en) | 2016-05-11 | 2016-05-11 | High -voltage common rail fuel injector single sprays measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620422828.0U CN205618280U (en) | 2016-05-11 | 2016-05-11 | High -voltage common rail fuel injector single sprays measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205618280U true CN205618280U (en) | 2016-10-05 |
Family
ID=57026388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620422828.0U Active CN205618280U (en) | 2016-05-11 | 2016-05-11 | High -voltage common rail fuel injector single sprays measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205618280U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882331A (en) * | 2019-02-28 | 2019-06-14 | 一汽解放汽车有限公司 | A kind of long needle valve spray nozzle coupler high pressure flow measuring device |
| CN112096531A (en) * | 2020-10-12 | 2020-12-18 | 中国船舶重工集团公司第七一一研究所 | Single injection fault real-time monitoring device of electric control oil injector and common rail system test bed |
| CN112648123A (en) * | 2020-12-21 | 2021-04-13 | 中国北方发动机研究所(天津) | Piezoelectric type single injection measuring instrument |
-
2016
- 2016-05-11 CN CN201620422828.0U patent/CN205618280U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882331A (en) * | 2019-02-28 | 2019-06-14 | 一汽解放汽车有限公司 | A kind of long needle valve spray nozzle coupler high pressure flow measuring device |
| CN109882331B (en) * | 2019-02-28 | 2020-11-13 | 一汽解放汽车有限公司 | Long needle valve fuel sprayer mating parts high pressure flow measuring device |
| CN112096531A (en) * | 2020-10-12 | 2020-12-18 | 中国船舶重工集团公司第七一一研究所 | Single injection fault real-time monitoring device of electric control oil injector and common rail system test bed |
| CN112096531B (en) * | 2020-10-12 | 2024-03-29 | 中国船舶集团有限公司第七一一研究所 | Single-injection fault real-time monitoring device of electric control fuel injector and common rail system test bed |
| CN112648123A (en) * | 2020-12-21 | 2021-04-13 | 中国北方发动机研究所(天津) | Piezoelectric type single injection measuring instrument |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205618280U (en) | High -voltage common rail fuel injector single sprays measuring device | |
| CN107101929B (en) | Concrete impermeability test device | |
| KR20140010432A (en) | Dosing of cylinder lubrication oil into large cylinders | |
| CN105756834B (en) | RANSAC-based direct injection engine single fuel injection amount liquid level height visual detection method | |
| KR20150139771A (en) | Method for operating an internal combustion engine and engine control unit | |
| CN103850850A (en) | Flow gauge for detecting circular fuel-injection quantity of oil injector of high-pressure common rail system of diesel engine | |
| CN104180876A (en) | Flowmeter detection platform | |
| CN109143411A (en) | Novel weighing type rainfall measuring method and device | |
| CN105020076A (en) | Oil injection lasting time measuring device and measuring method of electromagnetic valve type diesel oil injector | |
| CN205534503U (en) | Nozzle water distribution testing arrangement is with compound solenoid valve | |
| CN204005157U (en) | oil sprayer | |
| CN202476053U (en) | Coat-pelleted seed splitting rate detector | |
| CN205449739U (en) | Capillary rising degree test instrument on water | |
| CN205138970U (en) | A device for quickly determine unsaturated soil permeability function | |
| CN202453175U (en) | Detection system for simulating internal combustion engine environment test fuel injector injection liquid flow distribution | |
| CN108279184A (en) | Weighing type evaporation from water surface measurement method and device | |
| CN202648730U (en) | Liquid volume sensor | |
| CN209727365U (en) | Inspection head and inspection cover for fire extinguisher air-leakage test | |
| CN207686706U (en) | Single well metering device | |
| CN108254033B (en) | A leak gas mass flow measuring device for aeroengine seal test | |
| CN208357123U (en) | A kind of piston pin automatic oiling device | |
| CN201955124U (en) | Automatic grease flow metering tank | |
| JP4005506B2 (en) | Apparatus and method for measuring the injection quantity of an injection nozzle used in particular in motor vehicles | |
| CN204941760U (en) | Diesel fuel system circulating fuel injection quantity mechanical testing device | |
| CN201474816U (en) | Fog-dissipating fuel collector used for fuel injector experiments of high-pressure common-rail fuel system of diesel engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |