CN106050441A - Engine inlet gas fuel injection visualization test device and test method - Google Patents
Engine inlet gas fuel injection visualization test device and test method Download PDFInfo
- Publication number
- CN106050441A CN106050441A CN201610450833.7A CN201610450833A CN106050441A CN 106050441 A CN106050441 A CN 106050441A CN 201610450833 A CN201610450833 A CN 201610450833A CN 106050441 A CN106050441 A CN 106050441A
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- China
- Prior art keywords
- gas
- injection
- air inlet
- air
- inlet pipe
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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
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/02—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
- F02D19/025—Failure diagnosis or prevention; Safety measures; Testing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Testing Of Engines (AREA)
Abstract
The invention discloses an engine inlet gas fuel injection visualization test device and test method, and belongs to the technical field of engines. The device and method are used for observing conditions of injection flowing of gas fuel in a gas inlet and mixing of the gas fuel and incoming air. The device mainly comprises a gas injection valve mounting column body and a gas inlet pipe body; a gas injection valve is mounted on a rotatable cylinder body and can change the gas injection angle; and the device and method can simulate flowing of mixed gas of the engine gas inlet, the whole process of forming of combustible gas injection flowing and mixing of the combustible gas and air can be researched, and the influences of different injection pressures, injection pulse widths, air flow speeds and the like of the injection valve on injection flowing of the combustible gas can be researched.
Description
Technical field
The present invention relates to a kind of engine inlets gaseous fuel injection visual test device and test method, belong to and send out
Motivation technical field.
Background technology
Along with the development of society, the energy and problem of environmental pollution are increasingly paid attention to by people, and some gaseous fuels are (such as hydrogen
Gas, natural gas, biogas etc.) it is used widely.The most both at home and abroad, the supply of engines combustible gaseous fuel, by tradition
Blender supply mode, be changed into electronic control multi-point sequential injection mode；Because more traditional mechanical mixer mode, multiple spot
Spray regime can accurately control fuel feed according to engine operating condition by engine electric-controlled unit, so that electromotor
Dynamic property, economy and exhaust emissions are all greatly improved.
For the electromotor of intake port injection gaseous fuel, it is ensured that the mixing uniformity of air intake duct mixed gas is combustion
Burn the fundamental way of quality.Therefore, research air inlet pipe in fuel gas jet flow formed and mix with air whole
Process, and the impact of fuel gas jet flow has very by different expulsion pressure, injection diameter, air flow velocity etc.
Important meaning.
Along with the development of science and technology, in various potential technological means researchs, use the high speed photography of advanced person
Study electromotor with laser technology to mix, spread, catch fire and combustion process occupies more on academic and engineer applied
Consequence；Researcher utilizes Mie scattering-schlieren method, Rayleigh scattering laser elasticity to be scattering into as technology, be combined and swash both at home and abroad
Light induced fluorescence technology etc. has carried out a lot of research in constant volume burning and optical engine.The most in actual applications,
The technology such as Particle Image Velocity, laser speckle test the speed have been widely applied in a lot of flow-field test, achieve great prominent
Broken.
Summary of the invention
The present invention relates to a kind of engine inlets gaseous fuel injection visual test device and test method, it is possible to see
Examine the whole process being formed and mixing with air of fuel gas jet flow in air inlet pipe.Purpose is to understand combustible gas
The mixing of body and air and flow field change situation thereof, probe in conditions such as different expulsion pressures, spray angle, air flow velocity
Under, they affect situation to fuel gas jet flow.
The pilot system of the present invention includes driving motor, electromotor, and (including engine air feed system, fuel gas supplies
To system etc.), electronic control system, data collecting system, computer, camera etc..Electronic control system controls motor and turns
Speed, motor output shaft is connected with engine crankshaft end, it is achieved the reciprocating motion under different rotating speeds of the engine piston parts.
A kind of engine inlets gaseous fuel injection visual test device, it is characterised in that: include rotating cylinder (1), air inlet pipe
Body (2), bolt mounting holes (3), observation window (4), flange (5), snifting valve installing hole (6)；Described rotating cylinder (1) is installed on
On air inlet pipe body (2), air inlet pipe body (2) is provided with snifting valve installing hole (6)；Described rotating cylinder (1) passes through with air inlet
Flange (5) connects, with bolts by bolt mounting holes (3) with air throttle；Snifting valve is installed on described snifting valve and installs
In hole (6)；Described observation window (4) is made up of quartz glass, sticks with glue extremely with air inlet pipe body (2).
Described dynamic observation experiment method is regulation fuel gas feed system regulator, makes snifting valve be operated in stable
Pressure limit in, the pulse width signal that snifting valve is sent by electronic control system carries out action and sprays fuel gas；Pass through
In electronic control system regulation air supply system, the aperture of electronic throttle realizes the regulation to air velocity.By starting
Machine air inlet leading portion visualization device carries out optical observation.
Described air inlet leading portion visualization device includes rotating cylinder, air inlet pipe body, bolt mounting holes, observation window, method
Blue, snifting valve installing hole.
Described rotating cylinder is made up of hard rubber material, is installed on air inlet pipe body, and closely cooperates.
Described air inlet pipe body uses bolt even with air inlet and air throttle by flange and described bolt mounting holes
Connect.
Described observation window is made up of quartz glass, sticks with glue extremely with air inlet pipe body.
Described gas spray valve is installed in described snifting valve installing hole, by rotating cylinder, carries out injection valve angle of incidence
The regulation of degree so that spray angle inwards direction, is 0 ° of-60 ° of angle with engine cylinder cover axial line.As in figure 2 it is shown, spray
Penetrate valve incident direction in the plane vertical with paper, and can adjust.
Described source of the gas is the mixture of fuel gas and trace particle.Described trace particle is average diameter 2-7 μm aluminum
Powder.
The application process of described device, it is characterised in that: regulate motor operation speed by electronic control system, electronic
Machine output shaft is connected with engine crankshaft end, it is achieved electromotor reciprocating motion under different rotating speeds, and regulation fuel gas supplies
To system pressure regulating device, pressure adjustable scope is 0.1-3.5MPa, the pulse width signal that snifting valve is sent by electronic control system
Carry out action ejection fuel gas and aluminium powder homogeneous mixture, saved by electronics in electronic control system regulation air supply system
The aperture of valve realizes the regulation to air velocity, and carries out optical observation to by observation window；The rotation of rotating cylinder (1)
The spray angle making snifting valve is 0 ° of-60 ° of angle with engine cylinder cover axial line.
Invention has the following characteristics that 1, under the rotating speed that electromotor is different, it is possible to observe fuel gas injection in air inlet pipe
The whole process being formed and mixing with air of flowing；2, can preferably probe into different expulsion pressures, spray angle,
Under the conditions of air flow velocity etc., they affect situation to fuel gas jet flow.
Accompanying drawing explanation
Fig. 1 is the pilot system schematic diagram of inventive method；
Fig. 2 is the structural representation of the inventive method application apparatus (air inlet leading portion visual inspection device)；
Fig. 3 is snifting valve angle regulator schematic diagram of the present invention；
Fig. 4 is that snifting valve of the present invention regulates angular range schematic diagram；
Fig. 5 is visual inspection schematic diagram in process of the test of the present invention；
Label declaration: 1-rotating cylinder, 2-air inlet pipe body, 3-bolt mounting holes, 4-observation window, 5-flange, 6-jet
Valve installing hole.
Detailed description of the invention
As shown in Figure 1, a kind of engine inlets gaseous fuel injection visual test device and test method, including
Drive motor, electromotor (including engine air feed system, fuel gas feed system etc.), electronic control system, data
Acquisition system, computer, camera etc..
As shown in Figure 2, a kind of engine inlets gaseous fuel injection visual test device, it is characterised in that: bag
Include rotating cylinder (1), air inlet pipe body (2), bolt mounting holes (3), observation window (4), flange (5), snifting valve installing hole (6).
Described rotating cylinder (1) is made up of hard rubber material, is installed on air inlet pipe body (2), and closely cooperates.
The application process of described device, it is characterised in that: regulate motor operation speed by electronic control system, electronic
Machine output shaft is connected with engine crankshaft end, it is achieved electromotor reciprocating motion under different rotating speeds, and regulation fuel gas supplies
To system pressure regulating device, pressure adjustable scope is 0.1-3.5MPa, the pulse width signal that snifting valve is sent by electronic control system
Carry out action ejection fuel gas and aluminium powder homogeneous mixture, saved by electronics in electronic control system regulation air supply system
The aperture of valve realizes the regulation to air velocity, and carries out optical observation to by observation window；The rotation of rotating cylinder (1)
The spray angle making snifting valve is 0 ° of-60 ° of angle with engine cylinder cover axial line.
Described observation window (4) is made up of quartz glass, sticks with glue extremely with air inlet pipe body (2).
Described gas spray valve is installed in described snifting valve installing hole (6), as shown in Figure 3, Figure 4, passes through rotating cylinder
(1) regulation of injection valve incident angle, is carried out so that spray angle is towards engine intake direction, with engine cylinder cover axle center
Line is 0 ° of-60 ° of angle.
Described source of the gas is the mixture of fuel gas and trace particle.
Described trace particle is average diameter 2-7 μm aluminium powder.
As it is shown in figure 5, described gaseous fuel and trace particle mixture enter air intake duct gaseous fuel by snifting valve and spray
Penetrating in visual test device, mix with incoming air, camera lens is disposed vertically with observation window, owing to trace particle is sent out
The intensity penetrating light is different, and data collecting system processes and can draw being formed and mixing with air of fuel gas jet flow
Rule.
Test is initial, regulates motor operation speed, motor output shaft and engine crankshaft by electronic control system
End is connected, it is achieved electromotor reciprocating motion under different rotating speeds, regulates fuel gas feed system regulator, and pressure can
Tune scope is 0.1-3.5MPa, makes snifting valve be operated in stable pressure limit, and snifting valve is sent by electronic control system
Pulse width signal carry out action ejection fuel gas and aluminium powder homogeneous mixture, by electronic control system regulation air supply system
In system, the aperture of electronic throttle realizes the regulation to air velocity, and carries out engine intake leading portion visualization device
Optical observation.
Claims (2)
1. engine inlets gaseous fuel injection visual test device, it is characterised in that: include rotating cylinder (1),
Air inlet pipe body (2), bolt mounting holes (3), observation window (4), flange (5), snifting valve installing hole (6)；Described rotating cylinder (1)
Being installed on air inlet pipe body (2), air inlet pipe body (2) is provided with snifting valve installing hole (6)；Described rotating cylinder (1) and air inlet
Mouth is connected by flange (5), with bolts by bolt mounting holes (3) with air throttle；Snifting valve is installed on described jet
In valve installing hole (6)；Described observation window (4) is made up of quartz glass, sticks with glue extremely with air inlet pipe body (2).
2. the application process of device as claimed in claim 1, it is characterised in that: regulate motor operation by electronic control system
Speed, motor output shaft is connected with engine crankshaft end, it is achieved electromotor reciprocating motion under different rotating speeds, regulation can
Combustion gas supply system regulator, pressure adjustable scope is 0.1-3.5MPa, and snifting valve is sent by electronic control system
Pulse width signal carries out action ejection fuel gas and aluminium powder homogeneous mixture, regulates air supply system by electronic control system
The aperture of middle electronic throttle realizes the regulation to air velocity, and carries out optical observation to by observation window；Rotating cylinder
(1) rotation makes the spray angle of snifting valve and engine cylinder cover axial line be 0 ° of-60 ° of angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610450833.7A CN106050441A (en) | 2016-06-21 | 2016-06-21 | Engine inlet gas fuel injection visualization test device and test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610450833.7A CN106050441A (en) | 2016-06-21 | 2016-06-21 | Engine inlet gas fuel injection visualization test device and test method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106050441A true CN106050441A (en) | 2016-10-26 |
Family
ID=57168670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610450833.7A Pending CN106050441A (en) | 2016-06-21 | 2016-06-21 | Engine inlet gas fuel injection visualization test device and test method |
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| Country | Link |
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| CN (1) | CN106050441A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10151235B2 (en) | 2017-03-07 | 2018-12-11 | Caterpillar Inc. | Ducted combustion system for an internal combustion engine |
| CN111339681A (en) * | 2020-03-23 | 2020-06-26 | 中国空气动力研究与发展中心计算空气动力研究所 | Nozzle outlet parameter matching method for simulating engine gas medium jet flow aerodynamic interference effect by adopting air medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103541813A (en) * | 2013-11-15 | 2014-01-29 | 吉林大学 | Visual direct-injection gasoline engine |
| CN103792090A (en) * | 2013-07-12 | 2014-05-14 | 江苏大学 | Diesel engine in-cylinder spraying and combustion visualization testing apparatus and testing method |
| CN104389704A (en) * | 2014-11-10 | 2015-03-04 | 天津大学 | Visualized internal combustion engine air passage device |
| CN104481768A (en) * | 2014-10-14 | 2015-04-01 | 江苏大学 | Tracer agent spraying system applied for visual engine test |
-
2016
- 2016-06-21 CN CN201610450833.7A patent/CN106050441A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103792090A (en) * | 2013-07-12 | 2014-05-14 | 江苏大学 | Diesel engine in-cylinder spraying and combustion visualization testing apparatus and testing method |
| CN103541813A (en) * | 2013-11-15 | 2014-01-29 | 吉林大学 | Visual direct-injection gasoline engine |
| CN104481768A (en) * | 2014-10-14 | 2015-04-01 | 江苏大学 | Tracer agent spraying system applied for visual engine test |
| CN104389704A (en) * | 2014-11-10 | 2015-03-04 | 天津大学 | Visualized internal combustion engine air passage device |
Non-Patent Citations (3)
| Title |
|---|
| 李君等: "内燃机缸内全流场PIV测速***", 《燃烧科学与技术》 * |
| 王聘玺: "CNG/柴油双燃料发动机进气道优化设计研究", 《中国优秀硕士学位论文全文数据库工程科技Ⅱ辑》 * |
| 龚英利: "天然气发动机进气管内混合气形成过程的可视化研究", 《中国优秀硕士学位论文全文数据库工程科技Ⅱ辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10151235B2 (en) | 2017-03-07 | 2018-12-11 | Caterpillar Inc. | Ducted combustion system for an internal combustion engine |
| CN111339681A (en) * | 2020-03-23 | 2020-06-26 | 中国空气动力研究与发展中心计算空气动力研究所 | Nozzle outlet parameter matching method for simulating engine gas medium jet flow aerodynamic interference effect by adopting air medium |
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Application publication date: 20161026 |
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