CN208220953U - A kind of fuel injection valve circulation area calibration facility - Google Patents
A kind of fuel injection valve circulation area calibration facility Download PDFInfo
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- CN208220953U CN208220953U CN201820823021.7U CN201820823021U CN208220953U CN 208220953 U CN208220953 U CN 208220953U CN 201820823021 U CN201820823021 U CN 201820823021U CN 208220953 U CN208220953 U CN 208220953U
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- injection valve
- rack
- calibrated
- cylinder
- circulation area
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Abstract
The utility model discloses a kind of fuel injection valve circulation area calibration facilities, including rack, pressing device, holding device, Pneumatic controller, detection device and industrial PC, mounting plate is provided on rack, baffle is equipped in the middle part of mounting plate vertically, holding device is mounted on the right side on rack and being located at mounting plate, pressing device is vertically arranged in the top on rack and being located at mounting plate, Pneumatic controller is mounted in rack, the pipeline connecting with injection valve to be calibrated is connected on Pneumatic controller, industrial PC connect with detection device and can connect with injection valve to be calibrated；The utility model can quickly and accurately demarcate the circulation area of injection valve, and calibration process is simple, and calibration is high-efficient, can satisfy the demand of batch production.
Description
Technical field
The utility model relates to a kind of valve caliberating devices, and in particular to a kind of calibration of fuel injection valve circulation area is set
It is standby.
Background technique
The Global Oil energy peter out and air environmental pollution problem it is increasingly severe, natural gas is abundant with its
The reasons such as reserves, ideal physicochemical property become the good alternative fuel other than petroleum.Using natural gas as combustion
Material is on the engine using the time of existing decades, and the most crucial technology of natural gas engine is exactly combustion gas control technology,
There are the countries such as the U.S., Canada what forward position was compared in the research of natural gas engine control field at present；China is studied in this respect
It starts late, technically mostly dependent on foreign countries；Gas control system used by Ji great natural gas engine producer of the current country
Major part is using external inlet system, and just single gas control system one is just in occupation of the great cost of natural gas engine
Ratio.
The domestic gas control system for also thering are Some Enterprises to have developed independent brand at present, but control technology can't
Accurate control fuel flow rate；The uninterrupted of fuel injection valve is accurately controlled by valve opening and internal arithmetic, due to valve
The circulation area that door is opened is demarcated, what existing scaling method was performed manually by, but calibration speed is too slow manually,
Consistency is poor.
Utility model content
The purpose of this utility model is to provide a kind of fuel injection valve circulation area calibration facilities, which can
Accurate calibration is carried out to the circulation area of injection valve.
In order to solve the above technical problems, the technical scheme adopted by the utility model is:
A kind of fuel injection valve circulation area calibration facility, including rack, it is characterised in that: further include pressing device, top
Tight device, Pneumatic controller, detection device and industrial PC are provided with mounting plate on rack, are equipped with vertically in the middle part of mounting plate
Baffle, holding device are mounted on the right side on rack and being located at mounting plate, and pressing device is vertically arranged on rack and is located at peace
The top of loading board, Pneumatic controller are mounted in rack, are connected on Pneumatic controller and are connect with injection valve to be calibrated
Pipeline, industrial PC connect with detection device and can connect with injection valve to be calibrated.
The pressing device includes cylinder and mounting rack, and cylinder is vertically installed on mounting rack, and mounting rack is fixedly mounted on
On rack, the piston rod end of cylinder is connected with pressing plate, under the drive of piston rod, pressing plate can upwards, move downward by
Injection valve is demarcated to compress, unclamp.
The pressing plate bottom is provided with cushion.
The holding device includes bracket and cylinder I, and bracket is connected and composed by a vertical portion and a horizontal part, horizontal
Portion is screwed on rack, and cylinder I is horizontally arranged on vertical portion, and the piston rod end of cylinder I, which is provided with, holds out against disk.
The Pneumatic controller includes blower, and fan outlet is connect with pipeline.
Compared with prior art, the utility model has the following beneficial effects:
1. injection valve to be calibrated is fixed by the utility model pressing device from the top down, holding device is used for will be wait mark
Determine injection valve to withstand on baffle, injection valve to be calibrated is fixed, prevents the injection valve shifting to be calibrated when being demarcated
Position influence calibration result；Pneumatic controller is used to provide the gas of different pressures, is demarcated under the gas of different pressures,
As a result more accurate；Detection device is used for pressure, temperature, flow velocity and flow of the detection gas at current-carrying cross section, detection dress
The data that setting will test are transmitted to industrial PC, and industrial PC is calculated by calculating the data detected
Circulation area after calculating is entered into the controller of injection valve to be calibrated by circulation area, completes primary calibration；This is practical new
The calibration principle of type is as follows:
In closed state of the spool since most of injection valve to be calibrated to several positions are arranged maximum opening position
Set node；Spool is adjusted at the nodes of locations of setting, the gas with pressure is passed through into injection valve to be calibrated first, passes through
Detection device detects air pressure, temperature, flow velocity and the flow of gas, calculates the circulating face of injection valve to be detected under the air pressure
Product；Then, node is passed through the gas of different pressures in the position, and then obtains the circulation in the case of the node location different operating
Area；Then, the circulation area by all node locations in different operating all calculates, finally, the circulation that will be obtained
Area is entered into the controller of injection valve to be calibrated, completes calibration area and work is written.
After calibration area write-in work is completed, by injection valve to be calibrated until maximum opening since closed position
Until position, the flow rate calculation of the air-flow of different pressures is carried out under the corresponding aperture of each node location, by calculated result
It is compared with the flow value that detection device detects, compares error free, the i.e. detection work of completion calibration area.
The air-flow of different pressures is passed through injection valve to be calibrated first by the utility model, calculates each node location
Circulation area under different operating conditions, and connection area result is entered into controller；Then corresponding pressure, correspondence are calculated
The flow of node location with it is actually detected to flow results compare；The calibration and detection two of injection valve are completed above
Step, so that the calibration result to circulation area is more accurate；Simultaneously as the information that detection device will test directly passes
It is delivered to industrial PC, industrial PC is directly entered after calculating result in the controller of injection valve to be calibrated, and calibration is simple,
It demarcates high-efficient, can satisfy the demand of batch production.
2. pressing device described in the utility model includes cylinder, cylinder is able to drive pressing plate and moves reciprocatingly, facilitate by
Injection valve is demarcated to compress, meanwhile, cylinder can subtract deceleration device, simplify pressing device when realizing reciprocating motion
Structure；Cylinder-driven does not have drive gap simultaneously, and movement is steady, so that pressing device operation is more steady, reliable.
3. pressing plate bottom described in the utility model is provided with cushion；Pressing plate is pressed in be calibrated under the drive of piston rod
When on injection valve, buffering can be played the role of, while the rigid contact of pressing plate is changed to flexible contact, avoided under pressing plate
Injection valve to be calibrated is damaged when pressure.
4. the utility model horizontal part is screwed on rack, facilitate the installation and removal of bracket, under the action of cylinder I,
Injection valve to be calibrated is fixed again, so that the fixation of injection valve to be calibrated is more stable.
5. Pneumatic controller described in the utility model includes blower, fan outlet is connect with pipeline, and blower can will be empty
After air pressure contracting, it is input in injection valve to be calibrated, to complete staking-out work.
Detailed description of the invention
Fig. 1 is the utility model overall structure diagram.
Appended drawing reference: 1 cylinder, 2 piston rods, 3 mounting racks, 4 injection valves to be calibrated, 5 hold out against disk, 6 cylinders I, 7 vertical portions, and 8
Horizontal part, 9 racks, 10 blowers, 11 pressing plates, 12 cushions, 13 baffles, 14 mounting plates, 15 pipelines.
Specific embodiment
Below with reference to embodiment, the utility model will be further described, and described embodiment is only that this is practical new
Type a part of the embodiment is not whole embodiment.Based on the embodiments of the present invention, the ordinary skill people of this field
Member's other embodiments used obtained without making creative work, belong to the protection model of the utility model
It encloses.
The present embodiment includes rack 9, pressing device, holding device, Pneumatic controller, detection device and industrial PC,
Mounting plate 14 is provided on rack 9,14 middle part of mounting plate is equipped with baffle 13 vertically, and mounting plate 14 is for placing injection valve to be calibrated
4,4 left end of injection valve to be calibrated is contacted with baffle 13, and holding device is mounted on the right side on rack 9 and being located at mounting plate 14, pressure
Tight device is vertically arranged in the top on rack 9 and being located at mounting plate 14, and such pressing device can press injection valve 4 to be calibrated
On mounting plate 14, holding device can withstand on injection valve 4 to be calibrated on baffle 13, and then injection valve 4 to be calibrated is fixed；
Pneumatic controller is mounted in rack 9, and the pipeline 15 connecting with injection valve 4 to be calibrated is connected on Pneumatic controller,
When calibration, the outlet of pipeline 15 is connect with the import of injection valve 4 to be calibrated, and industrial PC is connect with detection device and energy
It is enough to be connect with injection valve 4 to be calibrated；Pneumatic controller is for providing the gas of different pressures；Detection device is thermometer, stream
Meter, current meter and gas gauge will be examined for pressure, temperature, flow velocity and flow of the detection gas at current-carrying cross section
The data measured pass to industrial PC, and industrial PC is calculated according to the calculation formula of typing, obtain circulation area result
Circulation area numerical value is entered into afterwards in the controller of injection valve 4 to be calibrated and is once demarcated；It is repaired by temperature, pressure operating condition
The formula of positive gas flow are as follows: flow=flow velocity * area of section * (pressure * 10+1) * (T+20)/(T+t) pressure
Power: pressure of the gas at current-carrying cross section, MPa；T: absolute temperature, 273.15；T: practical temperature of the gas at current-carrying cross section
Degree.
Wherein, pressing device includes cylinder 1 and mounting rack 3, and cylinder 1 is vertically installed on mounting rack 3 by screw, cylinder
12 face mounting plate 14 of piston rod, mounting rack 3 are fixedly mounted on rack 9, are connected with one in 2 end of piston rod of cylinder 1
A pressing plate 11, under the drive of piston rod 2, pressing plate 11, which can move downward, to be compressed injection valve 4 to be calibrated or moves upwards pine
Open injection valve 4 to be calibrated.
In the present embodiment, a block buffering pad 12 is bonded in the bottom of pressing plate 11.
Wherein, holding device includes bracket and cylinder I 6, and bracket is formed by welding by a vertical portion 7 and a horizontal part 8,
Horizontal part 8 is screwed on rack 9, and cylinder I 6 is horizontally arranged on vertical portion 7 by bolt, and 2 end of piston rod of cylinder I 6 is set
It is equipped with and holds out against disk 5, after the piston rod 2 of cylinder I 6 stretches out, holding out against disk 5 can withstand on injection valve 4 to be calibrated on baffle 13, into one
Injection valve 4 to be calibrated is fixed step.
Wherein, the Pneumatic controller includes blower 10, and the outlet of blower 10 is connect with pipeline 15.
Claims (5)
1. a kind of fuel injection valve circulation area calibration facility, including rack, it is characterised in that: further include pressing device, hold out against
Device, Pneumatic controller, detection device and industrial PC are provided with mounting plate on rack, are equipped with gear vertically in the middle part of mounting plate
Plate, holding device are mounted on the right side on rack and being located at mounting plate, and pressing device is vertically arranged on rack and is located at installation
The top of plate, Pneumatic controller are mounted in rack, and the pipe connecting with injection valve to be calibrated is connected on Pneumatic controller
Road, industrial PC connect with detection device and can connect with injection valve to be calibrated.
2. a kind of fuel injection valve circulation area calibration facility according to claim 1, it is characterised in that: the compression dress
It sets including cylinder and mounting rack, cylinder is vertically installed on mounting rack, and mounting rack is fixedly mounted on rack, the piston rod of cylinder
End is connected with pressing plate, under the drive of piston rod, pressing plate can upwards, move downward by injection valve to be calibrated compress, unclamp.
3. a kind of fuel injection valve circulation area calibration facility according to claim 2, it is characterised in that: the pressing plate bottom
Portion is provided with cushion.
4. a kind of fuel injection valve circulation area calibration facility according to claim 1 or 3, it is characterised in that: the top
Tight device includes bracket and cylinder I, and bracket is connected and composed by a vertical portion and a horizontal part, and horizontal part is screwed onto rack
On, cylinder I is horizontally arranged on vertical portion, and the piston rod end of cylinder I, which is provided with, holds out against disk.
5. a kind of fuel injection valve circulation area calibration facility according to claim 4, it is characterised in that: the air pressure control
Device processed includes blower, and fan outlet is connect with pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820823021.7U CN208220953U (en) | 2018-05-30 | 2018-05-30 | A kind of fuel injection valve circulation area calibration facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820823021.7U CN208220953U (en) | 2018-05-30 | 2018-05-30 | A kind of fuel injection valve circulation area calibration facility |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208220953U true CN208220953U (en) | 2018-12-11 |
Family
ID=64506890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820823021.7U Active CN208220953U (en) | 2018-05-30 | 2018-05-30 | A kind of fuel injection valve circulation area calibration facility |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208220953U (en) |
-
2018
- 2018-05-30 CN CN201820823021.7U patent/CN208220953U/en active Active
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