CN208431079U - Heavy oil aero-engine and aircraft - Google Patents
Heavy oil aero-engine and aircraft Download PDFInfo
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- CN208431079U CN208431079U CN201820816782.XU CN201820816782U CN208431079U CN 208431079 U CN208431079 U CN 208431079U CN 201820816782 U CN201820816782 U CN 201820816782U CN 208431079 U CN208431079 U CN 208431079U
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Abstract
The utility model discloses a kind of heavy oil aero-engine and aircrafts, including cylinder body, cylinder head and piston component, the top surface of the piston spill guide portion sinking relative to piston-top surface corresponding with the injection direction of fuel oil ejection assemblies, fuel oil ejection assemblies are guided fuel to plug ignition region by spill guide portion after delivering fuel to spill guide portion, the top surface of the utility model piston spill guide portion sinking relative to piston-top surface corresponding with the injection direction of fuel oil ejection assemblies, the fuel of penetrating is guided to plug ignition region, optimize piston-top surface, to optimize combustion chamber, change compression ratio, reduce risk for knock, enhance tumble flow effect simultaneously, heavy oil is enabled to realize more adequately atomization mixing, uniform combustion mixture is formed after good mixing, it can also organize the burning of fuel-efficient, Guarantee that heavy oil in dynamic property, economy and the emission performance for being applied to engine, realizes energy-saving and environmental protection and low cost that heavy oil is applied to after engine.
Description
Technical field
The utility model relates to engine and application, in particular to a kind of heavy oil aero-engine and aircraft.
Background technique
Fuel of the heavy oil as engine will become the power trend of middle-size and small-size aircraft；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.But due to heavy oil itself
Property problem is unable to reach the fogging degree of general oil product, and can not uniformly mix between combustion air, is being lighted
Original EFI ignition way can not be used when starting；It is run even if using ignition way, then also due to burning not
Sufficiently lead to a series of engine problems, cannot achieve the reliable atomization of heavy oil and fuel combination can not be organized efficiently to fire
It burns, dynamic property, economy and the emission performance for also allowing for heavy oil applied to engine are unable to reach the effect of expectation, to make weight
The application of oil can not be popularized on a large scale.
Therefore, it is necessary to be improved to existing heavy fuel burning engine, enable to heavy oil realize more adequately atomization and
Uniform mixing, and the burning of fuel-efficient can be organized, guarantee heavy oil in dynamic property, economy and the row for being applied to engine
Putting property realizes energy-saving and environmental protection and low cost that heavy oil is applied to after engine.
Utility model content
In view of this, being enabled to the purpose of the utility model is to provide a kind of heavy oil aero-engine and aircraft
Heavy oil realizes more adequately atomization and uniform mixing, and can organize the burning of fuel-efficient, guarantees that heavy oil is being applied to
Dynamic property, economy and the emission performance of engine realize energy-saving and environmental protection and low cost that heavy oil is applied to after engine.
The heavy oil aero-engine of the utility model, including cylinder body, cylinder head and piston component, as shown, piston component
Piston be located in cylinder body, the cylinder head, which is equipped with, injects fuel into the fuel oil ejection assemblies of combustion chamber；The top surface of piston is formed
Relative to piston-top surface sink spill guide portion, the spill guide portion be radially offset from piston-top surface center and
It is corresponding with the fuel injection direction of fuel oil ejection assemblies, i.e., the described fuel oil ejection assemblies deliver fuel to after spill guide portion by
Spill guide portion guides fuel to plug ignition region；The setting position of spill guide portion need to be located at fuel oil ejection assemblies phase
Pair position, spill guide portion is using reflecting and being formed guidance when fuel injection, conducive to tumble flow is formed, conducive to punching is further formed
Atomization and mixing are hit, and the structure changes compression ratio, reduces risk for knock.
Further, the spill guide portion is made of introducing face and lead surface, and the introducing face and lead surface draw in spill
The bottom smooth transition in portion is led, drainage effect is smooth；The introducing face is corresponding with the injection direction of fuel oil ejection assemblies and introduces
Face forms the inclination angle of the fuel for receiving the injection of fuel oil ejection assemblies, has preferable guidance effect, can be completely by gaseous mixture
It is introduced to lead surface；The upward gentle dip in the direction of the lead surface towards the ignition zone of spark plug, utilizes the incline structure
The fuel of ejection is led to and is gathered in plug ignition areas adjacent, is being introduced into and is being conducive to form tumble flow in spill process, into
The mixing of one step and finely disintegrated fuel, and it is conducive to igniting.
Further, the piston-top surface depression in centre makes entire piston-top surface in peviform structure, the lead surface it is upper
Edge is located at the bottom of peviform structure and seamlessly transits with the bottom of peviform structure, and the upper edge in the introducing face is located at peviform knot
The edge of structure, the structure make the upper edge in introducing face be higher than the upper edge of lead surface, are formed and smoothly lead in/out structure.
Further, the fuel oil ejection assemblies include fuel nozzle, premixer and oil-air mixing nozzle, in the premixer
There are the jet and compressed air inlet (the namely compressed air outlet of air compression system) of fuel nozzle, the oil gas
Mixed oil and gas after the atomization that mixing nozzle connection premixer forms fuel oil and compressed air in premixer is sent into engine
Combustion chamber；Premix and the fuel oil that further atomizing fuel nozzle sprays are realized in premixer using auxiliary low pressure air, is protected
Card later period direct-injection, which enters behind combustion chamber to be formed, to be more more fully atomized, to realize the full combustion and utilization of heavy oil；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 after combustion chamber
It being capable of homogenous combustion；Fuel nozzle generally uses EFI mode, and details are not described herein.
Further, the dual ignition plug formed by spark plug I and spark plug II is installed, the spark plug I is on the cylinder head
Center spark plug；The oil-air mixing nozzle and spark plug II are respectively in I two sides of spark plug；Center line, the fire of the spark plug I
Flower plug II center line and oil-air mixing nozzle center line it is substantially coplanar, it is substantially coplanar refer to allow to have certain error,
Such as lesser inclination and dislocation, have no effect on the understanding coplanar to this programme；On passing through the coplanar section, the introducing
The upper edge in face and the injection direction of oil-air mixing nozzle are corresponding and seamlessly transit between the upper edge and piston-top surface；The oil
The basic face of fuel of gas mixing nozzle injection introduces the upper edge in face and enters spill guide portion along introducing face direction downwards,
The a part in introducing face is formed at the smooth transition, and there is preferable introducing effect；It actually introduces face and lead surface distinguishes shape
The injection direction face of the front and back sides (according to air-flow general direction) of concavity guide portion, oil-air mixing nozzle introduces the upper of face
Edge and down toward spill guide portion bottom and then along lead surface ignition zone is rushed in the constraint in the face of introducing guidance, had preferable
Tumble flow effect, prevent pinking；Radial position of the upper edge of the lead surface on piston-top surface is no more than the point of spark plug I
Fiery position provides the space for introducing the fuel into ignition zone, is conducive to full combustion, avoids detonation.
Further, the spark plug I and spark plug II opposite tilt from top to bottom, the combustion chamber face on cylinder head is intermediate attached
Nearly downwardly projecting and lower protruding parts and spark plug I are correspondingly formed the inclined-plane substantially vertical with its axis, substantially vertical finger
It is to allow that there is the vertical of certain error, ensure that the craftsmanship of mounting stability and manufacture, and the inclined-plane draws lead surface
Gaseous mixture out has certain guiding function, so that spark plug has preferable ignition results；The upper edge of the lead surface
Radially it is no more than spark plug I, conducive to the abundant extraction process for extending fuel, gathers conducive to fuel in ignition zone.
Further, the injection direction of the oil-air mixing nozzle is 16 ° -20 °；The igniting angle of spark plug II is 40 °-
50°；The injection direction of oil-air mixing nozzle is suitable for the sparking mode of atomization property and adaptation dual ignition plug in heavy oil,
Conducive to tissue igniting and final full combustion.
It further, further include precombustion chamber, the precombustion chamber is the Laval nozzle knot along the igniting of spark plug I direction
Structure, the Laval nozzle structure are formed directly into cylinder head and jet port connection combustion chamber；The precombustion chamber course of work is, mixed
Close after fuel is injected into combustion chamber, while entering precombustion chamber, by spark plug (ignition point is located at the inlet end of Laval nozzle,
The inlet end is the mouth for Laval nozzle, rather than with combustion chamber) igniting after, expand and pass through Lavalle
Jet pipe rapidly sprays (speed more higher than combustion explosion), and further impacting to have to the fuel combination for entering combustion chamber makes gas
Well-mixed effect, conducive to uniform combustion mixture is formed, meanwhile, precombustion chamber can accelerate flame transmission, improve combustion
Efficiency is burnt, engine power is promoted and reduces risk for knock, additionally it is possible to organize the burning of fuel-efficient, guarantee that heavy oil is being applied to
Dynamic property, economy and the emission performance of engine realize energy-saving and environmental protection and low cost that heavy oil is applied to after engine.
Further, the bottom of the peviform structure by with spill guide portion side diametrically towards the top of lead surface
Along gradually inclination upwards, it will be understood that can also be managed gradually to be tilted upwards by II side of spark plug towards the upper edge of lead surface
Solution is that the bottom of the peviform structure is radially inclined gradually downward from the upper edge of lead surface towards plug ignition region
Tiltedly, formed it is enough allow bit space, provide structural condition for homogenous combustion, and make final even piston stress.
The invention also discloses a kind of aircraft, the aircraft is equipped with the heavy oil aero-engine.
The utility model has the beneficial effects that the heavy oil aero-engine and aircraft of the utility model, the top surface of piston with
The corresponding spill guide portion sinking relative to piston-top surface of the injection direction of fuel oil ejection assemblies, the fuel of penetrating is guided
To plug ignition region, piston-top surface is optimized, to optimize combustion chamber, changes compression ratio, reduces risk for knock, simultaneously
Enhance tumble flow effect, enables to heavy oil to realize more adequately atomization mixing, form uniform burning after good mixing
Gaseous mixture, additionally it is possible to organize the burning of fuel-efficient, guarantee heavy oil in dynamic property, economy and the discharge for being applied to engine
Property, 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 engine structure schematic diagram of the utility model；
Fig. 2 is oil-air mixing nozzle structural schematic diagram.
Fig. 3 is piston perspective view；
Fig. 4 is Fig. 3 along sectional view along A-A；
Fig. 5 is Fig. 3 along B-B direction cross-sectional view.
Specific embodiment
It is as shown in the figure: the heavy oil aero-engine of the present embodiment, including cylinder body 5, cylinder head 13 and piston component, as schemed institute
Show, the piston of piston component is located in cylinder body 5, and the cylinder head 13 is equipped with the fuel oil ejection assemblies for injecting fuel into combustion chamber；
The top surface of piston 1 forms the spill guide portion sinking relative to piston-top surface, and the spill guide portion is radially offset from piston
The center of top surface and it is corresponding with the fuel injection direction of fuel oil ejection assemblies (refer to fuel oil component spray when, and
The position of piston makes spill guide portion correspond to injection direction), the fuel oil ejection assemblies deliver fuel to spill guide portion
Fuel is guided to plug ignition region by spill guide portion afterwards；The setting position of spill guide portion need to be located at fuel oil injection group
The opposite position of part, spill guide portion is using reflecting and being formed guidance when fuel injection, conducive to tumble flow is formed, is conducive to further shape
At impact atomization and mixing, and the structure changes compression ratio, reduces risk for knock.
In the present embodiment, the spill guide portion 2 is made of introducing face 21 and lead surface 22, the introducing face 21 and is drawn
22 are appeared in the smooth transition of the bottom of spill guide portion, drainage effect is smooth；The injection in the introducing face and fuel oil ejection assemblies
Direction is corresponding and introduces the inclination alpha for the fuel that face is formed for receiving the injection of fuel oil ejection assemblies, which can be set in drawing
Enter the top of face, middle part or on the lower, conducive to receiving and fuel being guided to enter introducing face, there is preferable guidance effect, it can be compared with
For gaseous mixture is completely introduced to lead surface；Gently incline upwards in the direction of the lead surface towards the ignition zone of spark plug
Tiltedly, the fuel of ejection is led to using the incline structure and is gathered near spark plug, be introduced into and be conducive to shape in spill process
At tumble flow, simultaneously finely disintegrated fuel is further mixed, and be conducive to igniting；As shown, introducing the orientation in face 21 and lead surface 22
As fuel injection direction to plug ignition region direction, and between lead surface and introducing face be located at two sides (spill guidance
Two sides of the portion from the face of introducing to lead surface direction) in smooth transition, it is small that formation cross section is located at one radius of curvature of lead surface
The big oval structures of one, introducing face radius of curvature, relative to the center line of spark plug I 3, the center line and oil gas of spark plug II 4
The center line of mixing nozzle 8 it is coplanar symmetrical.
In the present embodiment, the fuel oil ejection assemblies a includes fuel nozzle 6, premixer 7 and oil-air mixing nozzle 8, described
(compressed air of namely air compression system goes out for the jet for having fuel nozzle 6 in premixer 7 and compressed air inlet
Mouthful), the oil-air mixing nozzle 8 is connected to the mixing after the atomization that premixer 7 forms fuel oil and compressed air in premixer
The combustion chamber of oil gas feeding engine；Premix and further atomizing fuel nozzle are realized in premixer using auxiliary low pressure air
The fuel oil of ejection guarantees that later period direct-injection enters behind combustion chamber to be formed and is more more fully atomized, to realize the abundant combustion of heavy oil
It burns and utilizes；This premix atomization is different from the impact atomization of the simple pressure air of the prior art, not only ensure that fuel oil
The further atomization of droplet, moreover it is possible to guarantee between auxiliary air and droplet it is uniform mix, into combustion chamber after can uniformly fire
It burns；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.
In the present embodiment, the dual ignition plug formed by spark plug I 3 and spark plug II 4, the spark are installed on the cylinder head
Plug I is center spark plug；The oil-air mixing nozzle 8 is respectively in I 3 two sides of spark plug with spark plug II 4, i.e., and radially three
Person's arrangement；Igniting is provided 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 igniting, relative to traditional heavy oil compression ignition engine,
Engine volume and weight is further decreased, aircraft (aircraft etc.) use is suitable for；The structure enters in-cylinder direct-jet
Gaseous mixture is corresponding with the igniting orientation of spark plug, is formed about dense combustion gas mixing area in spark plug, be conducive to and combustion air into
One step mixing, to organize the burning of fuel-efficient；The center line and oil gas of the center line of the spark plug I 3, spark plug II 4
The center line of mixing nozzle 8 is substantially coplanar, it is substantially coplanar refer to allow to have certain error, such as lesser inclination and mistake
Position, has no effect on the understanding coplanar to this programme；By the way that on the coplanar section, the upper edge in the introducing face and oil gas are mixed
It closes the injection direction correspondence of nozzle and the upper edge (refers to that the position of piston makes the introducing of spill guide portion in injection
The upper edge in face correspond to injection direction) with piston-top surface between seamlessly transit, and between the upper edge and piston-top surface smoothly
Transition forms a part in introducing face at the smooth transition, has and preferable introduces effect；Actually introduce face and lead surface point
Not Xing Cheng spill guide portion front and back sides (according to air-flow general direction), the injection direction face of oil-air mixing nozzle introduces
The upper edge in face and down toward spill guide portion bottom and then along lead surface ignition zone is rushed in the constraint in the face of introducing guidance, had
There is preferable tumble flow effect, prevents pinking；Radial position of the upper edge of the lead surface on piston-top surface is no more than spark
The ignition location for filling in I 3 provides the space for introducing the fuel into ignition zone, is conducive to full combustion, avoids detonation.
In the present embodiment, the 1 top surface depression in centre of piston makes entire piston-top surface in peviform structure, the lead surface
22 upper edge is located at the bottom of peviform structure and seamlessly transits with the bottom of peviform structure, and the upper edge in the introducing face is located at
The edge of peviform structure, the structure make the upper edge in introducing face be higher than the upper edge of lead surface, are formed and smoothly led in/out
Structure.
In the present embodiment, the spark plug I 3 and spark plug II 4 opposite tilt from top to bottom, the combustion chamber face on cylinder head exist
The intermediate nearby downwardly projecting and lower protruding parts and spark plug I 3 are correspondingly formed the inclined-plane substantially vertical with its axis, hang down substantially
It directly refers to allowing to have the vertical of certain error, ensure that the craftsmanship of mounting stability and manufacture, and the inclined-plane is for drawing
The gaseous mixture drawn appear with certain guiding function, so that spark plug has preferable ignition results；The lead surface
Upper edge is radially no more than spark plug I 3, conducive to the abundant extraction process for extending fuel, gathers conducive to fuel in ignition zone.
In the present embodiment, the oil-air mixing nozzle 8 is respectively in I 3 two sides of spark plug with spark plug II 4, and the oil gas is mixed
The injection direction for closing nozzle is 16 ° -20 °, preferably 18 °；The igniting angle of spark plug II is 40 ° -50 °, preferably 45 °, igniting folder
Angle refers to the angle of the axis direction of spark plug；What angle (including injection direction) here referred to is all the folder with cylinder center line
Angle, details are not described herein；The structure makes the gaseous mixture of in-cylinder direct-jet entrance after the drainage of the spill guide portion of top land, with
The igniting orientation of spark plug is corresponding, is formed about dense combustion gas mixing area in spark plug, and be conducive to further mix with combustion air
It closes, to form efficient tissue burning；The injection direction of oil-air mixing nozzle be suitable in heavy oil atomization property and
The sparking mode of dual ignition plug is adapted to, tissue igniting and final full combustion are conducive to.
In the present embodiment, the spark plug I 3 is located at the middle position or neighbouring (center spark plug) of top of combustion chamber, by
In spark plug I 3 it is centrally located or near, be correspondingly arranged with spark plug II 4, the punching of fuel that oil-air mixing nozzle 8 is sprayed
To I 3 ignition zone of spark plug and it is distributed in the ignition zone of spark plug II 4, is conducive to after being sufficiently mixed and lighting a fire after injection
Adequately burning.
It further include precombustion chamber 12 in the present embodiment, the precombustion chamber 12 is (to refer to along plug ignition direction
Spark plug axis direction) Laval nozzle structure formed, the Laval nozzle structure is formed directly into cylinder head and jet port
It is connected to combustion chamber；In the present embodiment, it is correspondingly arranged precombustion chamber with spark plug I 3, as shown, the ignition location of spark plug I 3
In precombustion chamber；The precombustion chamber course of work is, after fuel combination is injected into combustion chamber, while entering precombustion chamber,
By spark plug (ignition point is located at the inlet end of Laval nozzle, the inlet end be for Laval nozzle, rather than with
The mouth of combustion chamber) igniting after, expand simultaneously by Laval nozzle rapidly pass through throat by Laval nozzle jet port spray
(speed more higher than combustion explosion) out, further impacting to have to the fuel combination for entering combustion chamber keeps gas well-mixed
Effect, conducive to uniform combustion mixture is formed, meanwhile, precombustion chamber can accelerate flame transmission, improve efficiency of combustion, be promoted
Engine power simultaneously reduces risk for knock, 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.
In the present embodiment, the bottom of the peviform structure by with spill guide portion side diametrically towards lead surface
Upper edge gradually tilts upwards, it will be understood that gradually to be tilted upwards by II 4 side of spark plug towards the upper edge of lead surface 22,
The bottom of the peviform structure also is understood as from the upper edge of lead surface towards plug ignition region radially gradually
Tilt down, formed it is enough allow bit space, provide structural condition for homogenous combustion, and make final even piston stress.
The upper and lower of the utility model refers to orientation corresponding with piston-top surface, for piston, top surface direction
Refer to, under being toward piston skirt, relative to cylinder head direction be it is upper, under cylinder body is；Top land is provided with for avoiding valve
Escape groove, belong to the needs in structure, details are not described herein.
The invention also discloses a kind of aircraft, the aircraft is equipped with the heavy oil aero-engine.
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 (10)
1. a kind of heavy oil aero-engine, including cylinder body, cylinder head and piston component, it is characterised in that: the cylinder head is equipped with will
The fuel oil ejection assemblies of fuel penetrating combustion chamber；The top surface of piston forms the spill guide portion sinking relative to piston-top surface, institute
Spill guide portion is stated to be radially offset from the center of piston-top surface and opposite with the fuel injection direction of fuel oil ejection assemblies
It answers.
2. heavy oil aero-engine according to claim 1, it is characterised in that: the spill guide portion is by introducing face and draws
It constitutes, the introducing face and lead surface are seamlessly transitted in the bottom of spill guide portion；The introducing face and fuel oil injection group
The injection direction of part is corresponding and introduces the inclination angle for the fuel that face is formed for receiving the injection of fuel oil ejection assemblies, it is described draw towards
The upward gentle dip in direction of the ignition zone of spark plug.
3. heavy oil aero-engine according to claim 2, it is characterised in that: the piston-top surface depression in centre makes whole
A piston-top surface is in peviform structure, and the upper edge of the lead surface is located at the bottom of peviform structure and puts down with the bottom of peviform structure
It slips over and crosses, the upper edge in the introducing face is located at the edge of peviform structure.
4. heavy oil aero-engine according to claim 2, it is characterised in that: the fuel oil ejection assemblies include fuel oil spray
Mouth, premixer and oil-air mixing nozzle have jet and the compressed air inlet of fuel nozzle, the oil in the premixer
Gas mixing nozzle is connected to premixer and starts the mixed oil and gas feeding after atomization that fuel oil and compressed air are formed in premixer
The combustion chamber of machine.
5. heavy oil aero-engine according to claim 4, it is characterised in that: installation is by I He of spark plug on the cylinder head
The dual ignition plug that spark plug II is formed, the spark plug I are center spark plug；The oil-air mixing nozzle and spark plug II divide column
In I two sides of spark plug；The center line of the center line of the spark plug I, the center line of spark plug II and oil-air mixing nozzle is basic
It is coplanar, by the coplanar section, the upper edge in the introducing face and the injection direction of oil-air mixing nozzle it is corresponding and this
It is seamlessly transitted between upper edge and piston-top surface；Radial position of the upper edge of the lead surface on piston-top surface is no more than fire
The ignition location of flower plug I.
6. heavy oil aero-engine according to claim 5, it is characterised in that: the spark plug I and spark plug II are by upper
To lower opposite tilt, the combustion chamber face on cylinder head correspond to spark plug I position is downwardly projecting and the lower protruding parts and spark
Plug I is correspondingly formed the inclined-plane substantially vertical with its axis.
7. heavy oil aero-engine according to claim 5, it is characterised in that: the injection direction of the oil-air mixing nozzle
It is 16 ° -20 °；The igniting angle of spark plug II is 40 ° -50 °.
8. heavy oil aero-engine according to claim 1, it is characterised in that: it further include precombustion chamber, the precombustion
Room is the Laval nozzle structure along plug ignition direction, and the Laval nozzle structure is formed directly into cylinder head and injection
Mouth connection combustion chamber.
9. heavy oil aero-engine according to claim 3, it is characterised in that: the bottom of the peviform structure by with spill
The side of guide portion diametrically gradually tilts upwards towards the upper edge of lead surface.
10. a kind of aircraft, it is characterised in that: the aircraft is equipped with the heavy oil boat of claim 1 to 9 any claim
Empty engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820816782.XU CN208431079U (en) | 2018-05-29 | 2018-05-29 | Heavy oil aero-engine and aircraft |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820816782.XU CN208431079U (en) | 2018-05-29 | 2018-05-29 | Heavy oil aero-engine and aircraft |
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| CN208431079U true CN208431079U (en) | 2019-01-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108590877A (en) * | 2018-05-29 | 2018-09-28 | 重庆隆鑫发动机有限公司 | Heavy oil aero-engine and aircraft |
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2018
- 2018-05-29 CN CN201820816782.XU patent/CN208431079U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108590877A (en) * | 2018-05-29 | 2018-09-28 | 重庆隆鑫发动机有限公司 | Heavy oil aero-engine and aircraft |
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