CN208763799U - Heavy fuel burning engine fuel injection equipment (FIE) and aero-engine - Google Patents
Heavy fuel burning engine fuel injection equipment (FIE) and aero-engine Download PDFInfo
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- CN208763799U CN208763799U CN201820816674.2U CN201820816674U CN208763799U CN 208763799 U CN208763799 U CN 208763799U CN 201820816674 U CN201820816674 U CN 201820816674U CN 208763799 U CN208763799 U CN 208763799U
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- 239000000446 fuel Substances 0.000 title claims abstract description 86
- 238000002347 injection Methods 0.000 title claims abstract description 46
- 239000007924 injection Substances 0.000 title claims abstract description 46
- 239000000295 fuel oil Substances 0.000 claims abstract description 36
- 238000002485 combustion reaction Methods 0.000 claims abstract description 32
- 238000000889 atomisation Methods 0.000 claims abstract description 21
- 239000003921 oil Substances 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 238000004134 energy conservation Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 8
- 230000009977 dual effect Effects 0.000 description 6
- 239000007921 spray Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000000567 combustion gas Substances 0.000 description 3
- 239000008246 gaseous mixture Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 230000008450 motivation Effects 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
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- Fuel-Injection Apparatus (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
Abstract
The utility model discloses a kind of heavy fuel burning engine fuel injection equipment (FIE) and aero-engines, fuel injection equipment (FIE) includes fuel nozzle, premixer and oil-air mixing nozzle, the jet of fuel nozzle and the compressed air outlet of compressed air system are respectively positioned on premixer, oil-air mixing nozzle is connected to the combustion chamber that the mixed oil and gas of fuel oil and air is sent into engine by premixer, the fuel injection configuration for being atomized and being premixed using auxiliary air is installed on the utility model engine cylinder head, heavy oil is enabled to realize more adequately atomization, uniform combustion mixture is formed after good mixing, it can also efficiently organize to burn, guarantee heavy oil in the dynamic property for being applied to engine, economy and emission performance, realize the energy conservation that heavy oil is applied to after engine, environmental protection and low cost.
Description
Technical field
The utility model relates to engine and application, in particular to a kind of heavy fuel burning engine fuel injection equipment (FIE) and aviation hair
Motivation.
Background technique
Fuel of the heavy oil as engine will become the power trend of small and medium size unmanned aerial vehicles；But heavy oil viscosity is high, low temperature stream
Dynamic property is poor, causes atomizing effect poorer than common light oil, affects combustion efficiency, even result in engine start difficulty with
And discharge is not up to standard.
In the prior art, in order to guarantee that heavy fuel burning engine can have good atomization and starting, have and use carburetion
The fuel system such as device+auxiliary preheating technology, mechanical injection (fuel direct injection), electronic fuel injection；Wherein electronic fuel injection is adopted
With auxiliary air, fuel particles are impacted using pressure-air, realize the abundant atomization of fuel oil, effect is better than first two side
Formula.But opportunity, overall structure and the air degree of participation of air addition could not be optimized, original EFI is still in structure
Mode then cannot achieve the reliable atomization of heavy oil and fuel combination can not be organized efficiently to burn, also allows for heavy oil application
It is unable to reach the effect of expectation in the dynamic property, economy and emission performance of engine, to make the application of heavy oil can not be a wide range of
It is universal.
Therefore, it is necessary to improve to existing heavy fuel burning engine, heavy oil is enabled to realize more adequately atomization, and
The burning of fuel-efficient can be organized, guarantees that heavy oil in dynamic property, economy and the emission performance for being applied to engine, realizes heavy oil
Applied to the energy-saving and environmental protection and low cost after engine.
Utility model content
In view of this, the purpose of the utility model is to provide a kind of heavy fuel burning engine fuel injection equipment (FIE) and aeroplane engines
Machine enables to heavy oil to realize more adequately atomization, and can organize the burning of fuel-efficient, guarantees that heavy oil is being applied to hair
Dynamic property, economy and the emission performance of motivation realize energy-saving and environmental protection and low cost that heavy oil is applied to after engine.
The heavy fuel burning engine fuel injection equipment (FIE) of the utility model, including fuel nozzle, premixer and oil-air mixing nozzle,
There are jet and the compressed air inlet of fuel nozzle in the premixer, oil-air mixing nozzle connection premixer will fire
Mixed oil and gas after the atomization that oil and compressed air are formed in premixer is sent into the combustion chamber of engine；Using auxiliary low pressure sky
Gas realizes premix and the fuel oil that further atomizing fuel nozzle sprays in premixer, guarantees that later period direct-injection enters shape behind combustion chamber
At being more more fully atomized, to realize the full combustion and utilization of heavy oil；It not only ensure that the further mist of fuel droplet
Change, moreover it is possible to guarantee between auxiliary air and droplet it is uniform mix, into combustion chamber after being capable of homogenous combustion；Fuel nozzle is general
Using EFI mode, details are not described herein.
Further, when the fuel injection equipment (FIE) is installed on engine cylinder head, the injection direction of the oil-air mixing nozzle
It is 16 ° -20 °；The gaseous mixture that the structure enters in-cylinder direct-jet is corresponding with the igniting orientation of spark plug, near spark plug
Dense combustion gas mixing area is formed, is further mixed conducive to combustion air, to organize the burning of fuel-efficient；Oil-air mixing nozzle
Injection direction be suitable in heavy oil atomization property and adapt to heavy fuel burning engine dual ignition plug sparking mode, be conducive to group
Knit igniting and final full combustion.
Further, the premixer has compressed air inlet, and the fuel nozzle gos deep into premixer and jet is more than
Compressed air inlet；The structure not only facilitates the compact layout of all parts, and also making compressed air enter premixer is to be formed
Turbulent flow type impact reaches atomization and mixed dual purpose conducive to further atomization and uniformly mixing, to be the straight of later period
Preferable basic role is played in spray and burning.
Further, the oil spout direction of the fuel nozzle and the injection channel direction of oil-air mixing nozzle are consistent, the combustion
Spacing between the jet and oil-air mixing nozzle entrance of oil burner nozzle is 5-8mm, ensure that mounting structure neatly compactly, and
It ensure that the efficient injection of fuel oil, be conducive to air and form impact and turbulent flow；Suitable spacing range, conducive to the abundant atomization of heavy oil
And enter oil-air mixing nozzle after evenly mixing, and guarantee injection pressure.
The invention also discloses a kind of aero-engine, the aero-engine is equipped with the heavy fuel burning engine
Fuel injection equipment (FIE).
The utility model has the beneficial effects that the heavy fuel burning engine fuel injection equipment (FIE) and aero-engine of the utility model,
Fuel injection equipment (FIE) has the fuel injection configuration of premix, enables to heavy oil to realize more adequately atomization, good mixed
Uniform combustion mixture is formed after conjunction, additionally it is possible to organize the burning of fuel-efficient, guarantee that heavy oil is being applied to the dynamic of engine
Power, economy and emission performance realize energy-saving and environmental protection and low cost that heavy oil is applied to after engine.
Detailed description of the invention
The utility model is further described with reference to the accompanying drawings and examples.
Fig. 1 is the structural schematic diagram that the utility model is installed on engine；
Fig. 2 is the utility model structure diagram.
Specific embodiment
It is as shown in the figure: the heavy fuel burning engine fuel injection equipment (FIE) of the present embodiment, including fuel nozzle 6, premixer 7 and oil
Gas mixing nozzle 8, (namely air compresses for the jet for having fuel nozzle 6 in the premixer 7 and compressed air inlet
The compressed air outlet of system), the connection of oil-air mixing nozzle 8 premixer 7 shape in premixer by fuel oil and compressed air
At atomization after mixed oil and gas be sent into engine combustion chamber；Realize that premix is gone forward side by side in premixer using auxiliary low pressure air
The fuel oil that one step atomizing fuel nozzle sprays guarantees that later period direct-injection enters behind combustion chamber to be formed and is more more fully atomized, thus
Realize the full combustion and utilization of heavy oil；This premix atomization is different from the impact mist of the simple pressure air of the prior art
Change, not only ensure that the further atomization of fuel droplet, moreover it is possible to guarantee between auxiliary air and droplet it is uniform mix, into combustion
It being capable of homogenous combustion behind burning room；Fuel nozzle generally uses EFI mode, and details are not described herein.
As shown, fuel oil ejection assemblies are successively tightly connected shape by fuel nozzle 6, premixer 7 and oil-air mixing nozzle 8
At, it is tightly connected to be formed by mounting base 10 between fuel nozzle 6 and oil-air mixing nozzle 8 and fix, and premixer is directly formed
It is simple and compact for structure in mounting base 10；Fuel nozzle is equipped with fuel inlet fitting 61, and premixer 7 is empty by pneumatic fitting 9, compression
The compressed air outlet of 16 connect compressor of tracheae；The air inlet 91 of premixer is the gas outlet of pneumatic fitting 9.
The dual ignition plug formed by spark plug I 3 and spark plug II 4 is installed, the mounting structure of spark plug is to protrude on cylinder head 2
Combustion chamber is lighted a fire, and details are not described herein for mounting structure, provides igniting using dual ignition plug, the characteristic with high-energy ignition,
In conjunction with air-assisted atomization above-mentioned and premix scheme, guarantee engine various operating conditions and under the conditions of reliable and secure point
Fire further decreases engine volume and weight relative to traditional heavy oil compression ignition engine, is suitable for unmanned plane use.
In the present embodiment, when the fuel injection equipment (FIE) is installed on engine cylinder head, the oil-air mixing nozzle 8 and fire
Flower plug II 4 is respectively in I 3 two sides of spark plug, and the injection direction of the oil-air mixing nozzle is 16 ° -20 °, preferably 18 °；Spark plug
II igniting angle is 40 ° -50 °, and preferably 45 °, igniting angle refers to the angle of the axis direction of spark plug；Here angle refers to
Be all angle with cylinder center line, details are not described herein；The gaseous mixture that the structure enters in-cylinder direct-jet is through piston top
It is corresponding with the igniting orientation of spark plug behind portion and cylinder body wall surface water conservancy diversion, dense combustion gas mixing area, and benefit are formed about in spark plug
In further being mixed with combustion air, to form efficient tissue burning；The injection direction of oil-air mixing nozzle is suitable for
In heavy oil atomization property and adapt to the sparking mode of dual ignition plug, be conducive to tissue igniting and final full combustion.
In the present embodiment, the spark plug I 3 be located at top of combustion chamber middle position or near, due to I 3, spark plug
In middle position or near, the structure ensure that spark plug II 4 and 8 structure of oil-air mixing nozzle arrangement on also is located at middle line, spray
It is conducive to be sufficiently mixed and adequately burn after penetrating and lighting a fire.
In the present embodiment, coplanar arrangement between the oil-air mixing nozzle 8, spark plug II 4 and spark plug I 3, and this is coplanar
It is spatially substantially vertical with the plane where inlet and exhaust valve；Coplanar arrangement refers to oil-air mixing nozzle 8, II 4 and of spark plug
The axis of spark plug I 3 is located on the same face, and it is same flat that the plane where inlet and exhaust valve refers to that the axis of inlet and exhaust valve is located at
Face；It is substantially vertical to refer to that the two is formed vertical to the extent permitted by the error；The structure ensure that all parts on cylinder head
Simple-arranged, while being conducive to being sufficiently mixed for air inlet and combustion gas, it is further atomized conducive to tumble flow is formed, ensure that uniform high-efficiency
Burning.
In the present embodiment, the premixer 7 has compressed air inlet 91, and the fuel nozzle 6 gos deep into premixer and spray
Hydraulic fluid port is more than compressed air inlet 91；As shown, the center line of the compressed air inlet 91 and the oil spout with fuel nozzle 6
Mouthful centerline in same plane, and substantially vertical (it is of course also possible to appropriate tilting, vertically further facilitate layout and benefit
In atomization), which not only facilitates the compact layout of all parts, and also making compressed air enter premixer is to form turbulent flow type
Impact is conducive to further atomization and uniformly mixing, reaches atomization and mixed dual purpose, to be the direct-injection and combustion in later period
Burn preferable basic role.
In the present embodiment, the oil spout direction of the fuel nozzle 6 and the injection channel direction of oil-air mixing nozzle 8 are consistent,
Spacing between the jet and oil-air mixing nozzle entrance of the fuel nozzle is 5-8mm, ensure that installation neatly compactly
Structure, and ensure that the efficient injection of fuel oil, it is conducive to air and forms impact and turbulent flow；Suitable spacing range, conducive to heavy oil
It is sufficiently atomized and enters oil-air mixing nozzle after evenly mixing, and guarantee injection pressure, ensure that mounting structure neatly compactly,
And ensure that the efficient injection of fuel oil, it is conducive to air and forms impact and turbulent flow.
In the present embodiment, cooperate the device of the utility model, be also machined with precombustion chamber 17 on the cylinder head 2 of engine,
The precombustion chamber 17 is to be formed along the Laval nozzle structure of plug ignition direction (axis direction of spark plug), described
Laval nozzle structure is formed directly into cylinder head and jet port connection combustion chamber；The precombustion chamber course of work is, in fuel combination
After being injected into combustion chamber, while entering precombustion chamber, after spark plug (inlet end that ignition point is located at Laval nozzle) igniting,
Expand and pass through the jet port ejection (speed more higher than combustion explosion that Laval nozzle rapidly passes through throat by Laval nozzle
Degree), further impacting to have to the fuel combination for entering combustion chamber makes the well-mixed effect of gas, is conducive to form uniform combustion
Gaseous mixture is burnt, meanwhile, precombustion chamber can accelerate flame transmission, improve efficiency of combustion, promote engine power and reduce pinking
Risk, additionally it is possible to organize the burning of fuel-efficient, guarantee heavy oil in dynamic property, economy and the emission performance for being applied to engine,
Realize energy-saving and environmental protection and low cost that heavy oil is applied to after engine.
In the present embodiment, precombustion chamber is set at spark plug I and the ignitor of the spark plug I protrudes into precombustion
Room；Main spark plug is in the middle part of combustion chamber or nearby, the burning gases that precombustion chamber sprays more conducively mix entire combustion chamber
It closes gas and forms disturbance and full combustion.
The invention also discloses a kind of aero-engine, the aero-engine is equipped with the heavy fuel burning engine
Fuel injection equipment (FIE), as shown, fuel injection equipment (FIE) is installed on the cylinder head 2 of engine, piston component 5 is installed on cylinder body 1
It is interior, and the engine is suitable for unmanned plane.
Finally, it is stated that above embodiments are merely intended for describing the technical solutions of the present application, but not for limiting the present application, although ginseng
The utility model is described in detail according to preferred embodiment, those skilled in the art should understand that, it can be to this
The technical solution of utility model is modified or replaced equivalently, without departing from the objective and model of technical solutions of the utility model
It encloses, should all cover in the scope of the claims of the utility model.
Claims (8)
1. a kind of heavy fuel burning engine fuel injection equipment (FIE), it is characterised in that: sprayed including fuel nozzle, premixer and air-fuel mixture
Mouth, there is jet and the compressed air inlet of fuel nozzle in the premixer, and the oil-air mixing nozzle is connected to premixer
Mixed oil and gas after the atomization that fuel oil and compressed air are formed in premixer is sent into the combustion chamber of engine.
2. heavy fuel burning engine fuel injection equipment (FIE) according to claim 1, it is characterised in that: the fuel injection equipment (FIE) peace
When loaded on engine cylinder head, the injection direction of the oil-air mixing nozzle is 16 ° -20 °.
3. heavy fuel burning engine fuel injection equipment (FIE) according to claim 1, it is characterised in that: the fuel nozzle gos deep into pre-
Mixed room and jet are more than compressed air inlet.
4. heavy fuel burning engine fuel injection equipment (FIE) according to claim 1, it is characterised in that: the oil spout of the fuel nozzle
Direction is consistent with the injection channel direction of oil-air mixing nozzle.
5. heavy fuel burning engine fuel injection equipment (FIE) according to claim 1, it is characterised in that: the oil spout of the fuel nozzle
Spacing between mouth and oil-air mixing nozzle entrance is 5-8mm.
6. heavy fuel burning engine fuel injection equipment (FIE) according to claim 3, it is characterised in that: the compressed air inlet
Center line and with the centerline of the jet of fuel nozzle in same plane.
7. heavy fuel burning engine fuel injection equipment (FIE) according to claim 6, it is characterised in that: the compressed air inlet
Center line and substantially vertical with the center line of the jet of fuel nozzle.
8. a kind of aero-engine, it is characterised in that: the aero-engine is equipped with claim 1 to 7 any claim
Heavy fuel burning engine fuel injection equipment (FIE).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820816674.2U CN208763799U (en) | 2018-05-29 | 2018-05-29 | Heavy fuel burning engine fuel injection equipment (FIE) and aero-engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820816674.2U CN208763799U (en) | 2018-05-29 | 2018-05-29 | Heavy fuel burning engine fuel injection equipment (FIE) and aero-engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208763799U true CN208763799U (en) | 2019-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820816674.2U Expired - Fee Related CN208763799U (en) | 2018-05-29 | 2018-05-29 | Heavy fuel burning engine fuel injection equipment (FIE) and aero-engine |
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| Country | Link |
|---|---|
| CN (1) | CN208763799U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757255A (en) * | 2018-05-29 | 2018-11-06 | 重庆隆鑫发动机有限公司 | Heavy fuel burning engine fuel injection equipment (FIE) and aero-engine |
| CN110748447A (en) * | 2019-09-30 | 2020-02-04 | 广西擎芯动力科技有限公司 | Low-power-consumption driving gas metering valve for auxiliary injection of fuel gas of heavy oil piston engine |
-
2018
- 2018-05-29 CN CN201820816674.2U patent/CN208763799U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757255A (en) * | 2018-05-29 | 2018-11-06 | 重庆隆鑫发动机有限公司 | Heavy fuel burning engine fuel injection equipment (FIE) and aero-engine |
| CN110748447A (en) * | 2019-09-30 | 2020-02-04 | 广西擎芯动力科技有限公司 | Low-power-consumption driving gas metering valve for auxiliary injection of fuel gas of heavy oil piston engine |
| CN110748447B (en) * | 2019-09-30 | 2020-11-20 | 黎鑫悦 | Low-power-consumption driving gas metering valve for auxiliary injection of fuel gas of heavy oil piston engine |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190419 |