CN106089533B - A kind of cleaning of fuel gas injection valve and gas leakage detection device and detection method - Google Patents
A kind of cleaning of fuel gas injection valve and gas leakage detection device and detection method Download PDFInfo
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- CN106089533B CN106089533B CN201610670014.3A CN201610670014A CN106089533B CN 106089533 B CN106089533 B CN 106089533B CN 201610670014 A CN201610670014 A CN 201610670014A CN 106089533 B CN106089533 B CN 106089533B
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- Prior art keywords
- injection valve
- cleaning
- valve
- selector valve
- fuel gas
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Classifications
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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
- F02M65/006—Measuring or detecting fuel leakage 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
- F02M65/007—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)
- Examining Or Testing Airtightness (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses a kind of cleanings of fuel gas injection valve and gas leakage detection device and detection method, including Working gantry, injection valve group is installed on the Working gantry, the injection valve group includes the injection valve of several parallel connections, the entrance of the injection valve group is connected with entrance pipe, inlet mode selector valve is installed on the entrance pipe, the inlet mode selector valve is connected with leak hunting air source and cleaning equipment, the nozzle of each injection valve is connected with one outlet model selection valve, and the export model selector valve is connected with interior leakage observation device and cleaning fluid recovery；Valve group fixing device is installed on the Working gantry；Structure of the invention is rationally compact, can complete the periodic cleaning of fuel gas injection valve and inside and outside leak detection, to carry out injection valve repair, extends the service life of injection valve.
Description
Technical field
The present invention relates to natural gas engine technical field more particularly to it is a kind of injection valve is cleaned and is leaked hunting set
The standby and detection method based on the equipment.
Background technology
In natural gas engine field, injection valve receives ECU signals, sprays combustion gas according to instruction.Injection valve is according to starting
The quantity of the difference of machine discharge capacity, nozzle is also different (8,10,12 nozzles).Impurity present in combustion gas, on the one hand
The blocking that can cause injection valve nozzle, causes injection valve flow inadequate；On the other hand the abrasion of meeting accelerating jet sealing rubber ring, makes
At interior leakage, eventually leads to engine enriching or add lean burn.Impurity in combustion gas is inevitable, this just needs us fixed
Phase carries out cleaning maintenance and inside and outside leak detection to injection valve, extends the service life of injection valve, exploitation fuel gas injection valve cleaning
It is highly desirable with what inside and outside missing inspection measurement equipment became.
Invention content
A technical problem to be solved by this invention be to provide it is a kind of it is reasonable for structure, cleaning performance is good and leaks hunting accurately
Fuel gas injection valve cleans and gas leakage detection device.
In order to solve the above technical problems, the technical scheme is that：A kind of cleaning of fuel gas injection valve is detected with gas leakage to be set
It is standby, including Working gantry, injection valve group is installed, the injection valve group includes the injection of several parallel connections on the Working gantry
The entrance of valve, the injection valve group is connected with entrance pipe, is equipped with inlet mode selector valve on the entrance pipe, it is described enter
Mouth mold formula selector valve is connected with leak hunting air source and cleaning equipment, and the nozzle of each injection valve is connected with the choosing of one outlet pattern
Valve is selected, the export model selector valve is connected with interior leakage observation device and cleaning fluid recovery；
Valve group fixing device is installed on the Working gantry.
As a kind of perferred technical scheme, the valve group fixing device includes solid with vertical direction in the horizontal direction respectively
The horizontal air cylinder and vertical cylinder of the fixed injection valve group, the horizontal air cylinder are connect with the vertical cylinder by air inlet pipeline
There is work air source, discouraged port is connected on the air inlet pipeline, compression relief cock is installed at the discouraged port.
As a kind of perferred technical scheme, it is both provided with pressure gauge in the horizontal air cylinder and the vertical cylinder.
As a kind of perferred technical scheme, the air source that leaks hunting includes air compressor, the air compressor connection
There is gas cylinder, voltage-stablizer is installed on the gas cylinder, the outlet side of the gas cylinder is connected by pipeline and the inlet mode selector valve
It connects.
As a kind of perferred technical scheme, the cleaning equipment includes the cleaning barrel for being loaded with cleaning solution, the cleaning
Cleaning liquid pump is installed, the outlet end of the cleaning liquid pump is connect by pipeline with the inlet mode selector valve in bucket.
As a kind of perferred technical scheme, the interior leakage observation device includes and the one-to-one interior leakage of the injection valve
Observe cup, the nozzle of the injection valve is connected with outtake tube by the export model selector valve, the outtake tube from
It is stretched into the interior leakage observation cup by end；Shut-off valve is installed on the outtake tube.
As a kind of perferred technical scheme, there are one flowmeters for installation on each outtake tube.
As a kind of perferred technical scheme, the cleaning fluid recovery includes being connect with the export model selector valve
Adapter, the adapter is equipped with transfers import correspondingly with the export model selector valve, is set in the adapter
Have the switching inlet communication to transition passage together, turning of being connected to the transition passage is provided on the adapter
Exit, the switching exit of the adapter are equipped with liquid back pipe, and the liquid back pipe is connected with filter, the filter with
The cleaning equipment connection.
By adopting the above-described technical solution, a kind of fuel gas injection valve cleaning and gas leakage detection device, including Working gantry,
Injection valve group is installed, the injection valve group includes the injection valve of several parallel connections, the injection valve group on the Working gantry
Entrance is connected with entrance pipe, and inlet mode selector valve, the inlet mode selector valve connection are equipped on the entrance pipe
Leak hunting air source and cleaning equipment, and the nozzle of each injection valve is connected with one outlet model selection valve, the outlet mold
Formula selector valve is connected with interior leakage observation device and cleaning fluid recovery；Valve group fixing device is installed on the Working gantry；
Structure of the invention is rationally compact, can complete the periodic cleaning of fuel gas injection valve and inside and outside leak detection, to carry out injection valve dimension
It repaiies, extends the service life of injection valve.
A technical problem to be solved by this invention is to provide a kind of detected based on fuel gas injection valve cleaning and gas leakage and set
Standby detection method.
In order to solve the above technical problems, the technical scheme is that：A kind of cleaning of fuel gas injection valve and gas leakage detection side
Method includes the following steps：
Injection valve group is installed on Working gantry, is fixed the injection valve group using valve group fixing device by step 1；
Injection valve is connect in place by step 2 with entrance pipe and export model selector valve；
Step 3, inlet mode selector valve and export model selector valve select cleaning model, open cleaning equipment, cleaning solution
It is entered in injection valve by entrance pipe and inlet mode selector valve, cleaning fluid recovery is entered after injection valve, it is complete
At cleaning, cleaning equipment is closed；
Step 4, inlet mode selector valve and export model selector valve select pattern of leaking hunting, and open the air source that leaks hunting, and close spray
Valve is penetrated, observing interior leakage observation device, whether bubbling illustrates leakage in corresponding injection valve if bubbling；
Step 5 opens injection valve, closes interior leakage observation device, is applied in injection valve chest and the junction of injection valve nozzle
Expanding foam solution is smeared, sees whether to leak outside；
Step 6 is leaked hunting and is finished, and closes the air source that leaks hunting, removes the injection valve group by test.
The above method is based on fuel gas injection valve cleaning and is realized with gas leakage detection device, can complete the regular of fuel gas injection valve
Cleaning and inside and outside leak detection extend the service life of injection valve to carry out injection valve repair.
Description of the drawings
The following drawings are only intended to schematically illustrate and explain the present invention, not delimit the scope of the invention.Wherein：
Fig. 1 is the structural schematic diagram of the embodiment of the present invention；
In figure：1- Working gantries；2- injection valves；21- entrance pipes；22- inlet mode selector valves；23- export models are selected
Select valve；31- air compressors；32- gas cylinders；41- cleaning barrels；42- cleans liquid pump；Leakage observation cup in 51-；52- outtake tubes；
53- flowmeters；61- adapters；62- liquid back pipes；63- filters；71- horizontal air cylinders；72- vertical cylinders；73- pressure gauges；74-
Air inlet pipeline；75- compression relief cocks.
Specific implementation mode
With reference to the accompanying drawings and examples, the present invention is further explained.In the following detailed description, only pass through explanation
Mode describes certain exemplary embodiments of the present invention.Undoubtedly, those skilled in the art will recognize,
In the case of without departing from the spirit and scope of the present invention, described embodiment can be repaiied with a variety of different modes
Just.Therefore, attached drawing and description are regarded as illustrative in nature, and are not intended to limit the scope of the claims.
As shown in Figure 1, a kind of fuel gas injection valve cleaning and gas leakage detection device, including Working gantry 1, the Working gantry
2 groups of injection valve is installed, 2 groups of the injection valve includes the injection valve 2 of several parallel connections, the entrance connection that 2 groups of the injection valve on 1
There is entrance pipe 21, inlet mode selector valve 22 is installed on the entrance pipe 21, inlet mode selector valve 22 opens up for three
It closes, three-way cock is designed with cleaning gear, leak hunting gear and neutral gear third gear, and cleaning gear cleaning solution flows into injection valve 2, and leak hunting shelves
Position air source flows into injection valve 2；
The inlet mode selector valve 22 is connected with leak hunting air source and cleaning equipment, and the air source that leaks hunting includes air compression
Machine 31, the air compressor 31 are connected with gas cylinder 32, and voltage-stablizer, the outlet side of the gas cylinder 32 are equipped on the gas cylinder 32
It is connect with the inlet mode selector valve 22 by pipeline；The cleaning equipment includes the cleaning barrel 41 for being loaded with cleaning solution, institute
It states and cleaning liquid pump 42 is installed in cleaning barrel 41, the outlet end of the cleaning liquid pump 42 is selected by pipeline and the inlet mode
Valve 22 connects；
The nozzle of each injection valve 2 is connected with one outlet model selection valve 23, the export model selector valve 23
For three-way cock, the export model selector valve 23 is connected with interior leakage observation device and cleaning fluid recovery, and the interior leakage is seen
It includes passing through the outlet mold with the one-to-one interior leakage observation cup 51 of the injection valve 2, the nozzle of the injection valve 2 to examine device
Formula selector valve 23 is connected with outtake tube 52, on each outtake tube 52 installation there are one flowmeter 53, it is described go out conductance
The free end of pipe 52 is stretched into the interior leakage observation cup 51；Shut-off valve (not shown) is installed on the outtake tube 52；
The cleaning fluid recovery includes the adapter 61 being connect with the export model selector valve 23, the adapter 61 be equipped with
The switching import correspondingly of the export model selector valve 23, interior be equipped with of the adapter 61 arrive the switching inlet communication
Transition passage together is provided with the switching outlet being connected to the transition passage, the adapter 61 on the adapter 61
Switching exit liquid back pipe 62 is installed, the liquid back pipe 62 is connected with filter 63, the filter 63 and the cleaning
Equipment connects, and the filter 63 uses transparent shell, and convenient for observation dirt, the bottom of filter 63 is designed with sewage draining exit, real
Existing dirt eliminating function.2 adapter 61 of the injection valve is the tooling specially designed, and each nozzle has oneself corresponding circuit, is returned
Road is divided into two and is controlled that (three-way cock is divided into third gear, ventilate respectively source shelves, cleaning solution shelves and sky by three-way cock
Shelves), a switching outlet for flowing to 2 adapter 61 of injection valve, one flows into interior leakage by flowmeter 53 and observes in cup 51, neutral gear
When leaking outside convenient for monitoring, pressurize uses.
Valve group fixing device is installed, the valve group fixing device includes distinguishing in the horizontal direction on the Working gantry 1
Fix the horizontal air cylinder 71 and vertical cylinder 72 of 2 groups of the injection valve with vertical direction, the horizontal air cylinder 71 and described vertical
Pressure gauge 73 is both provided on cylinder 72, the horizontal air cylinder 71 is connected with work with the vertical cylinder 72 by air inlet pipeline 74
Make air source, the air source that leaks hunting also serves as the work air source, is connected with discouraged port on the air inlet pipeline 74, at the discouraged port
Compression relief cock 75 is installed, pressure release cylinder return is played the role of.
The horizontal connection channel being connected to entrance pipe 21, entrance pipe are provided on the cylinder wall of the horizontal air cylinder 71
21 are connect by the horizontal connection channel on horizontal air cylinder 71 with injection valve 2；It is provided on the cylinder wall of the vertical cylinder 72
The switching outlet of the vertical interface channel being connected to liquid back pipe 62, adapter 61 is connected by vertical interface channel and liquid back pipe 62
It connects.
2 nozzle of the injection valve is each connected with electrical appliance kit, and electrical appliance kit uses 24V electrical appliance kits, and has corresponding
Switch, the electrical appliance kit are connected with power supply.The power supply by conducting wire with filled on Working gantry 1 it is clear inside soda liquor container
Lotion pumps 42 are connected.Specifically, the 24V electrical appliance kits give injection valve 2 by conducting wire and power, and spray is provided on the electrical appliance kit
The corresponding socket of mouth power cord, socket is provided with corresponding switch on electrical appliance kit.
This test equipment operation principle：In use, first by injection valve 2 groups be placed on Working gantry 1, install switching
First 61, and nozzle circuit is connected, gas source switch is opened, horizontal air cylinder 71 is started to work with vertical cylinder 72, clamps injection valve
2；By three-way cock, cleaning model is selected, opens the circuit of each corresponding nozzle on electric appliance box, 42 electricity of connection cleaning liquid pump
Road, cleaning solution flow back into cleaning solution by three-way cock, horizontal air cylinder 71,2 nozzle of injection valve, vertical cylinder 72, filter 63
In container, last for several minutes completes cleaning action.Nozzle circuit and cleaning circuit are broken, three-way cock selects pattern of leaking hunting, gas
Source reaches nozzle, whether has bubbling phenomenon in the corresponding liquid container that leaks hunting of observation nozzle, if so, then leakage in corresponding nozzle.It beats
Nozzle switch is opened, the shut-off valve on each nozzle outtake tube 52 is closed, smears and sends out in the junction of nozzle and 2 shell of injection valve
Infusion can see whether there is leakage phenomenon.
A kind of cleaning of fuel gas injection valve and leak detection method, include the following steps：
Injection valve is installed on Working gantry 1 for 2 groups by step 1, is consolidated the injection valve for 2 groups using valve group fixing device
It is fixed；
Injection valve 2 is connect in place by step 2 with entrance pipe 21 and export model selector valve 23；
Step 3, inlet mode selector valve 22 and export model selector valve 23 select cleaning model, open cleaning equipment, clearly
Washing lotion is entered by entrance pipe 21 and inlet mode selector valve 22 in injection valve 2, is returned into cleaning solution after injection valve 2
Receiving apparatus completes cleaning, closes cleaning equipment；
Specifically, the selection of inlet mode selector valve 22 cleaning gear, export model selector valve 23 select cleaning solution circulation shape
State opens cleaning pump power switch, and cleaning liquid pump 42 is made to pump cleaning solution after inlet mode selector valve 22 followed by water
It is flowed back in cleaning equipment after flat cylinder 71,2 each nozzle of injection valve, export model selector valve 23, vertical cylinder 72, filter 63；
After continuing 2~3 minutes, cleaning equipment power supply is closed, cleaning liquid pump 42 is terminated and pumps cleaning solution, close electrical appliance kit top nozzle and correspond to
Whole switches, close export model selector valve 23, complete cleaning task；
Step 4, inlet mode selector valve 22 and export model selector valve 23 select pattern of leaking hunting, and open the air source that leaks hunting, and close
Injection valve 2 is closed, observing interior leakage observation device, whether bubbling illustrates leakage in corresponding injection valve 2 if bubbling；
Specifically, the selection of inlet mode selector valve 22 is leaked hunting pattern, compressed air can pass through inlet mode selector valve 22 into
Enter horizontal air cylinder 71, into 2 nozzle of injection valve, the flowmeter 53 on nozzle outtake tube 52 can be passed through if interior leakage, is flowed into
In interior leakage observation cup 511~12, if there is bubbling phenomenon and if flowmeter 53 has reading in leakage；
Step 5 opens injection valve 2, interior leakage observation device is closed, in the connection of 2 shell of injection valve and 2 nozzle of injection valve
Expanding foam solution is smeared at place, sees whether to leak outside；
Specifically, the corresponding all switches of electrical appliance kit top nozzle are opened, are made in insertion on leakage observation 51 outtake tube 52 of cup
Shut-off valve is in neutral gear, and gas is in packing state inside injection valve 2, is smeared in the junction of nozzle and 2 shell of injection valve
Expanding foam solution, it can be determined that whether nozzle leaks outside；
Step 6 is leaked hunting and is finished, and closes the air source that leaks hunting, removes 2 groups of the injection valve by test.
Pressure gauge 73 tries auxiliary tool as inside and outside test leakage, when inlet mode selector valve 22 is in neutral gear, in injection valve 2
Portion's gas confinement illustrates 2 gas leakage of injection valve if the reading of pressure gauge 73 declines obviously；
After over cleaning and inside and outside test leakage examination, nozzle switch is connected, by the reading for observing flowmeter 53, it can be determined that spray
2 nozzle of valve is penetrated with the presence or absence of opening travel inadequate phenomenon or catching phenomenon.
After the completion of cleaning and inside and outside leak detection, air compressor 31 is closed, turns off switch, compression relief cock 75 is opened, unloads
Injection valve 2 through over cleaning and inside and outside test leakage examination；It dismantles the adapter 61 of 2 test of injection valve, restores original outlet guide rail,
Complete 2 test job of injection valve.
The basic principles and main features and advantages of the present invention of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (8)
1. a kind of fuel gas injection valve cleaning and gas leakage detection device, are characterized in that：Including Working gantry, pacify on the Working gantry
Equipped with injection valve group, the injection valve group includes the injection valve of several parallel connections, and the entrance of the injection valve group is connected with inlet tube
Road is equipped with inlet mode selector valve on the entrance pipe, and the inlet mode selector valve is connected with leak hunting air source and cleaning
The nozzle of equipment, each injection valve is connected with one outlet model selection valve, and the export model selector valve is connected with interior
Leakage observation device and cleaning fluid recovery；
Valve group fixing device is installed on the Working gantry；
The valve group fixing device include fixed in the horizontal direction with vertical direction respectively it is described injection valve group horizontal air cylinder and
Vertical cylinder, the horizontal air cylinder and the vertical cylinder are connected with work air source by air inlet pipeline, on the air inlet pipeline
It is connected with discouraged port, compression relief cock is installed at the discouraged port.
2. fuel gas injection valve cleaning as described in claim 1 and gas leakage detection device, it is characterised in that：The horizontal air cylinder and
It is both provided with pressure gauge in the vertical cylinder.
3. fuel gas injection valve cleaning as described in claim 1 and gas leakage detection device, it is characterised in that：The air source packet that leaks hunting
Air compressor is included, the air compressor is connected with gas cylinder, and voltage-stablizer, the outlet side of the gas cylinder are equipped on the gas cylinder
It is connect with the inlet mode selector valve by pipeline.
4. fuel gas injection valve cleaning as described in claim 1 and gas leakage detection device, it is characterised in that：The cleaning equipment packet
The cleaning barrel for being loaded with cleaning solution is included, cleaning liquid pump is installed in the cleaning barrel, the outlet end of the cleaning liquid pump passes through pipe
Road is connect with the inlet mode selector valve.
5. fuel gas injection valve cleaning as described in claim 1 and gas leakage detection device, it is characterised in that：The interior leakage observation dress
It sets including observing cup with the one-to-one interior leakage of the injection valve, the nozzle of the injection valve passes through the export model selector valve
It is connected with outtake tube, the free end of the outtake tube is stretched into the interior leakage observation cup；It is equipped on the outtake tube
Shut-off valve.
6. fuel gas injection valve cleaning as claimed in claim 5 and gas leakage detection device, it is characterised in that：Go out conductance described in each
There are one flowmeters for installation on pipe.
7. fuel gas injection valve cleaning as described in claim 1 and gas leakage detection device, it is characterised in that：The cleaning solution recycling
Device includes the adapter being connect with the export model selector valve, and the adapter is equipped with and the export model selector valve one
One corresponding switching import, the adapter is interior to be equipped with the switching inlet communication to transition passage together, the switching
The switching outlet being connected to the transition passage is provided on head, the switching exit of the adapter is equipped with liquid back pipe, institute
It states liquid back pipe and is connected with filter, the filter is connect with the cleaning equipment.
8. a kind of fuel gas injection valve cleaning and leak detection method, are characterized in that, include the following steps：
Injection valve group is installed on Working gantry, is fixed the injection valve group using valve group fixing device by step 1；
Injection valve is connect in place by step 2 with entrance pipe and export model selector valve；
Step 3, inlet mode selector valve and export model selector valve select cleaning model, open cleaning equipment, and cleaning solution passes through
Entrance pipe and inlet mode selector valve enter in injection valve, and cleaning fluid recovery is entered after injection valve, complete clear
Work is washed, cleaning equipment is closed；
Step 4, inlet mode selector valve and export model selector valve select pattern of leaking hunting, and open the air source that leaks hunting, and close injection
Valve, observing interior leakage observation device, whether bubbling illustrates leakage in corresponding injection valve if bubbling；
Step 5 opens injection valve, closes interior leakage observation device, smears and sends out in the junction of injection valve chest and injection valve nozzle
Liquid is steeped, sees whether to leak outside；
Step 6 is leaked hunting and is finished, and closes the air source that leaks hunting, removes the injection valve group by test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610670014.3A CN106089533B (en) | 2016-08-15 | 2016-08-15 | A kind of cleaning of fuel gas injection valve and gas leakage detection device and detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610670014.3A CN106089533B (en) | 2016-08-15 | 2016-08-15 | A kind of cleaning of fuel gas injection valve and gas leakage detection device and detection method |
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| Publication Number | Publication Date |
|---|---|
| CN106089533A CN106089533A (en) | 2016-11-09 |
| CN106089533B true CN106089533B (en) | 2018-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610670014.3A Active CN106089533B (en) | 2016-08-15 | 2016-08-15 | A kind of cleaning of fuel gas injection valve and gas leakage detection device and detection method |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019222967A1 (en) * | 2018-05-24 | 2019-11-28 | 北京朝阳高科应用技术研究所有限公司 | Simulation test apparatus for detecting nozzle |
| DK180473B1 (en) * | 2019-09-06 | 2021-05-07 | Iop Marine As | Method for testing a valve body of an injector valve and method for testing an injector valve |
| CN112709655B (en) * | 2021-01-29 | 2023-09-22 | 枝江市宁港物流有限公司 | Tightness detection device for electric control high-pressure common rail system |
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| CN103742264A (en) * | 2013-12-31 | 2014-04-23 | 广西玉柴机器股份有限公司 | Gas nozzle cleaning device |
| CN205936939U (en) * | 2016-08-15 | 2017-02-08 | 潍柴西港新能源动力有限公司 | Gas jet valve washs and leakage detecting equipment |
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| US20120153049A1 (en) * | 2010-12-17 | 2012-06-21 | Guangqi Honda Automobile Co., Ltd. | Cleaning and detection system for automatic paint sprayer |
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|---|---|---|---|---|
| CN2244105Y (en) * | 1995-04-12 | 1997-01-01 | 崔鹏岚 | Computer type cleaning and checking instrument for oil injection device |
| CN201004005Y (en) * | 2006-05-31 | 2008-01-09 | 博益(天津)气动技术研究所有限公司 | Car fuel supply system leakage and ventilation detection device |
| CN101265860A (en) * | 2008-05-07 | 2008-09-17 | 张云奎 | Automobile oil nozzle cleaning detector |
| DK177454B1 (en) * | 2011-11-09 | 2013-06-17 | Iop Marine As | A method for testing a gas injection valve and a plant for carrying out the method |
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| CN106089533A (en) | 2016-11-09 |
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