CN108758625B - A kind of oil-poor direct-injection air atomizer spray nozzle of fuel oil grazing incidence film forming - Google Patents
A kind of oil-poor direct-injection air atomizer spray nozzle of fuel oil grazing incidence film forming Download PDFInfo
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- CN108758625B CN108758625B CN201810430667.3A CN201810430667A CN108758625B CN 108758625 B CN108758625 B CN 108758625B CN 201810430667 A CN201810430667 A CN 201810430667A CN 108758625 B CN108758625 B CN 108758625B
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- film
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
- F23D11/10—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour
- F23D11/12—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour characterised by the shape or arrangement of the outlets from the nozzle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
- F23D11/36—Details, e.g. burner cooling means, noise reduction means
- F23D11/38—Nozzles; Cleaning devices therefor
- F23D11/383—Nozzles; Cleaning devices therefor with swirl means
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Nozzles For Spraying Of Liquid Fuel (AREA)
- Spray-Type Burners (AREA)
Abstract
The invention discloses a kind of oil-poor direct-injection air atomizer spray nozzles of fuel oil grazing incidence film forming, assist the fuel oil of grazing incidence to form a film by the way of pneumatically combining using structure.It is made of direct-injection type fuel nozzle, pre- membrane tube tangential inlet, deflector, pre- membrane tube, central tube, axial swirler and sleeve.Fuel oil is incident from pre- membrane tube tangential inlet, sprays after uniform oil film is transformed into inside pre- membrane tube from outlet.Air can be incident from pre- membrane tube tangential inlet with fuel oil, can also pass through from central tube and axial swirler.Deflector is devised at pre- membrane tube tangential inlet, can both promote fuel oil transporting downstream, while also strengthening the rotational flow of air, auxiliary fuel expansion film forming.Inclined hole is provided on central tube wall surface, the oblique air of injection is used to maintain the high speed rotation of fuel downstream.Using the present invention, the uniform fast filming of fuel oil of grazing incidence may be implemented, and realize the atomization of fuel oil Quick uniform in exit, can also prevent tempering phenomenon occur when burning.
Description
Technical field
The present invention relates to a kind of oil-poor direct-injection (LDI) air atomizer spray nozzle, more particularly to a kind of fuel oil grazing incidence at
Oil-poor direct-injection (LDI) air atomizer spray nozzle of film.
Background technique
In order to promote the mobility of aircraft, the thrust ratio of military aero-engine is continuously increased.As engine is to pushing away
The requirement of ratio is higher and higher again, and each state has all stepped up the research of high temperature rise combustor.The combustion chamber oil-gas ratio that the U.S. has been carried out
It is 0.046, and plans that 0.05 can be reached after the year two thousand twenty, can is more than 0.06 after the year two thousand thirty.High temperature rise is burnt at this stage
The development of room is faced with many challenges.Firstly, although high temperature rise combustor will be with very high oil-gas ratio work under high power state
Make, but it must also be ensured that can be stable under low operating condition work, this is a basic requirement, that is, widens steady operation
The requirement of range.Secondly, coming although ordnance engine exhaust pollution is not limited by ICAO discharge from environmental
It says, it is also desirable to reduce discharge as far as possible.Importantly, smoking of the exhaust and NO must be reduced as ordnance engine2Discharge.
Reducing smoking of the exhaust is proposed from the triggering to far infrared.Because smoking of the exhaust means there are many red-hot subtle carbon granules
Son, many air-to-air missiles are equipped with far infrared guidance device, these red-hot carbon particles can trigger far infrared, and aircraft is made to be easy to be led
Latch is fixed.NO is limited on high temperature rise ordnance engine2Discharge to be primarily due to it be brown color gas.As NO in exhaust2Concentration
When more than 45ppm, it can be observed that the exhaust column of brown color, this is very unfavorable for the stealthy of aircraft.In addition, high temperature rise
The Temperature Distribution coefficient of outlet must be greatly lowered in combustion chamber, just can guarantee turbine under the adverse circumstances of excessive temperature in this way
It can still work normally.It should be noted that high temperature rise combustor is for the invisible requirement smoldered with slow train fuel-lean blowout
It is contradictory.The visible boundary that smolders is reached in order to prevent, and high temperature rise combustor is while improving combustion chamber gross gas-oil ratio, it is necessary to
Change the distribution of its air mass flow, increases the air capacity in primary zone to reduce the average equivalent ratio in primary zone.But this will lead to it is poor
The increase of the flame-out oil-gas ratio of oil is easy engine under idling rating flame-out.And reduce dilution air and burner inner liner is cold
But the ratio of air, this just proposes very high requirement to the durability of burner inner liner.It is difficult effectively with current chamber structure
It solves the above problems.
The LDI air atomizer spray nozzle of fuel oil grazing incidence film forming of the present invention is oil-poor straight applied to a distribution
Spray the main combustion stage nozzle of combustion chamber.There are two the technical characterstics of the combustion chamber, first is that each sector head devises 1 pre-burning
Grade and 9 main combustion stages use the form of multiple small-sized main combustion stage nozzle array column arrangements instead of traditional big nozzle arrangements,
It will be reinjected into combustion chamber after fuel distribution to each small nozzle；Second is that LDI combustion technology is used, directly by fuel oil and sky
Gas, which is directly injected in combustion chamber, to burn.The technical characterstic of the combustion chamber and the demand of high temperature rise combustor are consistent.It adopts
It is classified with flexible nozzle, different steady working condition may be implemented, widen the stable operation range of combustion chamber；Use multiple nozzles
Keep the distribution of fuel oil spatially more uniform, avoids the appearance in local rich oil area, reduce the production quantity of soot；By fuel
It is incident on combustion chamber with oil-poor state, reduces the temperature in primary zone, reduces the discharge of NOx；Pass through the tune to nozzle location
Whole can be distributed to combustor exit temperature is effectively adjusted, its uniformity is improved；The fuel feeding of single-nozzle is reduced, and is expected to
The length for shortening combustion chamber on the whole, reduces the demand of cooling air.
The LDI air atomizer spray nozzle of fuel oil grazing incidence of the present invention film forming be distributed oil-poor direct-injection combustion chamber most
Crucial component.For LDI air atomizer spray nozzle, it can realize that quick, the uniform atomizing of fuel oil are critical technical problems.
Therefore, the present invention is directed to the demand, devises novel LDI air atomizer spray nozzle.
Summary of the invention
The technical problem to be solved by the present invention is proposing a kind of energy for the LDI nozzle of existing grazing incidence film forming
Enough auxiliary grazing incidence fuel oil Quick uniforms transform into oil film, and the new type nozzle of quick break.For traditional grazing incidence
LDI nozzle has found three main problems in an experiment.First is that the fuel oil near pre- membrane tube tangential inlet 2 is by rotation
Afterwards, it is partially flowed out by pre- membrane tube tangential inlet 2；Second is that fuel oil goes out in pre- membrane tube 4 when fuel flow is big, air-pressure drop is low
Mouth accumulation, causes oil film to thicken, atomizing effect is poor；Third is that after one direct current gas of central tube 3 is influenced by precession vortex core, stream
Central axes are deviateed in dynamic direction, and are not fixed, and are had very big vibration, are affected the stability of downstream flow field and burning.
The technical proposal adopted by the invention to solve the above technical problems is that: a kind of fuel oil grazing incidence film forming it is oil-poor straight
Air atomizer spray nozzle is sprayed, assists the fuel oil of grazing incidence to form a film by the way of pneumatically combining using structure, is fired by direct-injection type
Oil burner nozzle, pre- membrane tube tangential inlet, central tube, pre- membrane tube, axial swirler, sleeve and deflector are constituted, and simple nozzle will
Fuel oil is injected in pre- membrane tube tangential inlet, devises deflector at pre- membrane tube tangential inlet, in being total to for own momentum and deflector
Under same-action, fuel oil is launched into film close to pre- membrane tube inner wall flow further downstream, meanwhile, partial air can be together with fuel oil
Incident, rotational flow under the action of deflector from pre- membrane tube tangential inlet, auxiliary fuel form a film, and are provided with one on central tube tube wall
Inclined hole is enclosed, bottom is provided with lacunary outlet, and the partial air in central tube is sprayed from inclined hole, the high speed rotation of oil film is maintained,
Remaining air forms the flow field that multiply uniform air flow adjusts downstream after the outflow of the aperture of bottom, prevents from being tempered, also certain
The broken and atomization of exit oil film is promoted in degree, the outlet of central tube is retracted inside the outlet of pre- membrane tube than being 1, in
The structure that heart pipe inside contracts reduces influence of the direct current gas to downstream flow field and combustion stability, and a large amount of air stream is through axial rotational flow
Device enters downstream, and for sleeve using first shrinking the form extended afterwards, guidance air-flow shears oil film at its venturi, sleeve collapses section and
The angle of central axes is greater than 40 °, improves outward turning air to the angle of attack of liquid film, make pre- membrane tube export oil film breaking mode from
Wink hair atomization is converted into through canonical form.
It wherein, include the structure of spiral guiding plate, fuel oil is transported to pre- membrane tube tangential inlet downstream by deflector, and
The flowing for constraining air simultaneously increases the tangential momentum of air, improves the effect of air auxiliary fuel film forming.
Wherein, there are a certain distance in the inclined hole central axes on central tube and central tube central axes, flow through the air-flow of inclined hole
Generate circumferential speed；The angle of inclined hole central axes and central tube central axes makes the axis of air-flow generation downstream less than 90 ° simultaneously
To speed, after oil film downstream moves a distance along pre- membrane tube, tangential momentum can decay, and the thickness of oil film is caused to increase
Add, uniformity reduction, the air-flow that inclined hole generates can maintain the high speed rotation of oil film.
Wherein, center bottom of the tube is small structure, using the outlet of multiple apertures, forms the uniform air-flow of multiply, still
The tolerance of per share air-flow is less, while preventing tempering phenomenon from generating, can also reduce due to direct current gas self-oscillation and right
It is influenced caused by downstream flow field and combustion stability.
Wherein, central tube outlet is inside contracted relative to the outlet of pre- membrane tube, and the multiply uniform air flow flowed out from aperture can both promote
Unstability into pre- membrane tube exit oil film is broken, promotes atomizing effect；Flame can also be prevented by stripping.
Wherein, the sleeve collapses section angle is greater than 40 °, and the angle of gas shock liquid film increases, the machine of liquid sheet breakup
System is converted into wink hairdo from through canonical form, and quick, the uniform atomizing of liquid film may be implemented.
The principle of the invention is:
One, deflector 7 is set at pre- membrane tube tangential inlet 2.Fuel oil, can after rotation is turned around under the guidance of deflector 7
To avoid pre- membrane tube tangential inlet 2, downstream is flowed to.
Two, it assists rotating jointly using the rotary air of the pre- membrane tube of deflector 7 and tangential inlet 2 and central tube inclined hole 8
Fuel oil in pre- membrane tube quickly, uniformly expansion film forming.Novel air atomizer is cut by direct-injection type fuel nozzle 1, pre- membrane tube
It is constituted to entrance 2, central tube 3, pre- membrane tube 4, axial swirler 5, sleeve 6 and deflector 7.Wherein, it is distributed on 3 tube wall of central tube
One circle inclined hole 8, and bottom uses the outlet of more apertures 9.Fuel oil is injected pre- membrane tube tangential inlet by direct-injection type fuel nozzle 1
In 2.Under the collective effect of own momentum and deflector, fuel oil is flowed close to pre- 4 inner wall of membrane tube, and is launched into film.With this
Meanwhile partial air can be incident from pre- membrane tube tangential inlet 2 together with fuel oil, auxiliary fuel film forming.When oil film along pre- membrane tube 4 to
After downstream movement a distance, tangential momentum can decay, and the thickness of oil film increases and uniformity reduces.Therefore central tube 3
A circle inclined hole 8 is opened on outer wall, the partial air in central tube 3 is sprayed from inclined hole 8, maintains the high speed rotation of oil film.
Three, sleeve 6 shears oil film using the form extended afterwards, guidance air-flow is first shunk at its venturi.The present invention increases
The angle of sleeve 6 contraction section and central axes, increases air-flow to the angle of attack of liquid film, makes the atomization mechanism of oil film by classics
Formula becomes wink hairdo, improves atomizing effect.
Four, downstream flow field is adjusted using the central tube 3 inside contracted.Central tube 3 exports inside pre- membrane tube 4, flows out from aperture 9
Air both adjustable downstream flow field, prevent the generation of tempering phenomenon, also promote pre- membrane tube 4 to a certain extent and export
Locate the unstability of oil film and is crushed.Into the air part of central tube 3 from inclined hole 8 spray, auxiliary fuel film forming, remaining air from
The aperture 9 of bottom flows out.At multiple 9 structures of aperture, the uniform air-flow of multiply can reduce broken to liquid film 3 exit design of central tube
The influence of broken uniformity while preventing tempering phenomenon from generating, and can reduce direct current gas shock and swing under after outlet inside contracts
Swim the influence in flow field.
The present invention has the advantage that as follows compared with prior art:
(1) present invention auxiliary fuel in such a way that deflector adds oblique air forms a film, and utilizes fuel oil relative to simple
Tangential velocity film forming, compensate for pre- 4 near exit of membrane tube because fuel oil tangential velocity decaying caused by oil film thickness increase and
Uniformity reduces, and improves the uniformity of atomization.And oil film high speed rotation, the unstability of itself can be caused broken, accelerate atomization
Process.
(2) pre- diaphragm type air atomizer of the invention, central tube 3 are flowed out straight using the structure inside contracted by central tube 3
Flowing air not only can be with the atomization of auxiliary fuel, but also the structure in adjustable downstream flow field prevents the generation of tempering phenomenon, and right
Influence caused by the flowing field stability of downstream is smaller.In particular, the present invention can be reduced using the uniform air-flow of center multiply by
In the influence that airstream vibration generates liquid film uniformity.
(3) present invention adopts sleeve using biggish converging angles, and the angle of gas shock liquid film increases, atomization mechanism from
It is changed into wink hairdo through canonical form, liquid film is made just to realize complete atomization in nozzle exit.
Detailed description of the invention
Fig. 1 is the structure front view schematic diagram for the LDI air atomizer spray nozzle that a kind of fuel oil grazing incidence of the invention forms a film；
Fig. 2 is the cross-sectional view of the structure schematic diagram for the LDI air atomizer spray nozzle that a kind of fuel oil grazing incidence of the invention forms a film
(direction A-A in Fig. 1)；
Fig. 3 is the structure partial section diagram for the LDI air atomizer spray nozzle that a kind of fuel oil grazing incidence of the invention forms a film
It is intended to；
Fig. 4 is the structural schematic diagram of direct-injection type fuel nozzle of the invention, wherein Fig. 4 (a) is the main view of simple nozzle
Figure, Fig. 4 (b) are the cross-sectional view (direction B-B) of simple nozzle；
Fig. 5 is the structural schematic diagram of deflector of the invention, wherein Fig. 5 (a) is the main view of deflector, and Fig. 5 (b) is
The top view of deflector；
Fig. 6 is the structural schematic diagram of central tube of the invention, wherein the main view of pipe, Fig. 6 (b) are centered on Fig. 6 (a)
The bottom view of central tube；
In figure: 1 is direct-injection type fuel nozzle, and 2 be pre- membrane tube tangential inlet, is managed centered on 3, and 4 be pre- membrane tube, and 5 be axial
Cyclone, 6 be sleeve, and 7 be deflector, and 8 be inclined hole, and 9 be aperture.
Specific embodiment
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawing, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
Novel air atomizer as shown in Figure 1 is by direct-injection type fuel nozzle 1, pre- membrane tube tangential inlet 2, central tube 3, pre-
Membrane tube 4, axial swirler 5, sleeve 6 and deflector 7 are constituted.Wherein, 10 inclined holes 8, and bottom are distributed on 3 tube wall of central tube
Using the outlet of 5 apertures 9.Direct-injection type fuel nozzle 1 injects fuel oil in pre- membrane tube tangential inlet 2.In own momentum and
Under the collective effect of deflector, fuel oil is flowed close to pre- 4 inner wall of membrane tube, and is launched into film.The pre- membrane tube tangential inlet of design
2, the effective area accounting of axial swirler 5 and central tube 3 is respectively 3%, 12% and 85%.Partial air can be together with fuel oil
Incident, the auxiliary fuel film forming from pre- membrane tube tangential inlet 2.It is tangential after oil film downstream moves a distance along pre- membrane tube 4
Momentum can decay, the thickness and uniformity of oil film can be reduced.Therefore after opening a circle inclined hole 8 on 3 outer wall of central tube, central tube 3
Interior partial air is sprayed from inclined hole 8, maintains the high speed rotation of oil film.Remaining air is from the small of bottom in this exterior central tube 3
It flows out in hole 9.Central tube 3 is designed to the structure inside contracted, and the outlet of central tube 3 exports directly at a distance from the outlet of pre- membrane tube 4 with pre- membrane tube 4
The ratio of diameter is 1.The flow field in the air both adjustable downstream flowed out from aperture 9, prevents the generation of tempering phenomenon, also certain
The broken and atomization of exit oil film is promoted in degree.It is important that the outlet of central tube 3 inside contracts, it is therefore prevented that direct current gas is to downstream
The influence of flowing field stability.A large amount of air stream enters downstream through axial swirler 5.Sleeve 6, which uses, first shrinks the shape extended afterwards
Formula, guidance air-flow shear oil film at its venturi.In addition, the cyclone gas by axial swirler 5 forms recirculating zone, combustion in downstream
Recirculating zone, which can use high-temperature combustion product heating fresh mixture and realize, when burning stablizes burning.
As shown in Figure 1, the center of direct-injection type fuel nozzle 1 is directed at the center of pre- membrane tube tangential inlet 2, the spray of direct-injection type fuel oil
The distance between outlet and incident pipe import of mouth 1 are 2mm, and 1 diameter of nozzle is in 0.5mm, the internal diameter of pre- membrane tube tangential inlet 2
5mm can effectively guarantee that all fuel oils all enter in pre- membrane tube 4 in this way.The center alignment of direct-injection type fuel nozzle 1 is pre-
The center of membrane tube tangential inlet 2, pre- 2 center of membrane tube tangential inlet biased between pre- 4 center of membrane tube at a distance from for 3.7mm.In advance
4 pelvic outlet plane of membrane tube is aligned with sleeve venturi.
As shown in figure 3, spiral guiding plate 7 with a thickness of 1mm, screw pitch 6mm, internal diameter 5.4mm, outer diameter 13mm.Peace
Deflector initial planar and tangential inlet central axes angle are 45 ° when dress, inside and outside deflector 7 respectively with 3 outer wall of central tube and in advance
4 inner wall of membrane tube contact alignment, by being welded and fixed.
In central tube 3 as shown in Figure 4,8 axis of inclined hole is 1mm, the angle with central axes at a distance from central tube axis
It is 45 °.Air incidence in portion centers pipe increases the rotation speed of fuel oil, and auxiliary fuel is downstream defeated into pre- membrane tube 4
Fortune.Central tube exit devises the aperture of 5 diameter 1mm, is 1:2 with 8 tolerance distribution ratio of inclined hole.
Sleeve 6 is a circular channel for having venturi.The angle of contraction section and central axis is 40 °, and the diameter of venturi is
16mm, the maximum inner diameter of export expansion section are 26mm, and the angle of expansion segment and central axis is 50 °.
Claims (1)
1. a kind of oil-poor direct-injection air atomizer spray nozzle of fuel oil grazing incidence film forming, it is characterised in that: using structure and pneumatically
The mode combined assists the fuel oil of grazing incidence to form a film, by direct-injection type fuel nozzle (1), pre- membrane tube tangential inlet (2), center
It manages (3), pre- membrane tube (4), axial swirler (5), sleeve (6) and deflector (7) to constitute, simple nozzle (1) injects fuel oil
In pre- membrane tube tangential inlet (2), deflector (7) are devised at pre- membrane tube tangential inlet (2), in own momentum and deflector (7)
Collective effect under, fuel oil is launched into film close to pre- membrane tube (4) inner wall flow further downstream, meanwhile, partial air can be with combustion
Oil is incident from pre- membrane tube tangential inlet (2) together, rotational flow under the action of deflector (7), auxiliary fuel film forming, central tube
(3) a circle inclined hole (8) is provided on tube wall, bottom is provided with the outlet of more apertures (9), and the partial air in central tube (3) is from inclined hole
(8) it sprays, maintains the high speed rotation of oil film, remaining air forms multiply uniform air flow tune after the outflow of the aperture (9) of bottom
The flow field for saving downstream, prevents from being tempered, and also promotes the broken and atomization of exit oil film to a certain extent, central tube (3)
Outlet exported in pre- membrane tube (4) it is internal, retraction than being 1, the structure that central tube (3) inside contracts reduce direct current gas to downstream flow field and
The influence of combustion stability, a large amount of air stream enter downstream through axial swirler (5), and sleeve (6) uses first to shrink to be extended afterwards
Form, guidance air-flow shear oil film at its venturi, and the angle of sleeve (6) contraction section and central axes is greater than 40 °, improves outside
Air is revolved to the angle of attack of liquid film, so that pre- membrane tube (4) is exported oil film breaking mode and is converted into wink hair atomization from through canonical form；
It include the structure of spiral guiding plate (7), fuel oil is transported to pre- membrane tube tangential inlet (2) downstream by deflector (7), and
The flowing for constraining air simultaneously increases the tangential momentum of air, improves the effect of air auxiliary fuel film forming；
There are a certain distance in inclined hole (8) central axes and central tube (3) central axes on central tube (3), flow through the gas of inclined hole (8)
The raw circumferential speed of miscarriage；The angle of inclined hole (8) central axes and central tube (3) central axes is less than 90 ° simultaneously, make air-flow generate to
The axial velocity in downstream, after oil film downstream moves a distance along pre- membrane tube (4), tangential momentum can decay, and cause
The thickness of oil film increases, uniformity reduces, and the air-flow that inclined hole (8) generates can maintain the high speed rotation of oil film；
Central tube (3) bottom is aperture (9) structure, using the outlet of multiple apertures, forms the uniform air-flow of multiply, but per share
The tolerance of air-flow is less, while preventing tempering phenomenon from generating, can also reduce due to direct current gas self-oscillation and to downstream
It is influenced caused by flow field and combustion stability；
Central tube (3) outlet is inside contracted relative to pre- membrane tube (4) outlet, and the multiply uniform air flow flowed out from aperture (9) can both promote
Unstability into pre- membrane tube (4) exit oil film is broken, promotes atomizing effect；Flame can also be prevented by stripping；
Sleeve (6) the contraction section angle is greater than 40 °, and the angle of gas shock liquid film increases, and the mechanism of liquid sheet breakup is from warp
Canonical form is converted into wink hairdo, and quick, the uniform atomizing of liquid film may be implemented.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810430667.3A CN108758625B (en) | 2018-05-08 | 2018-05-08 | A kind of oil-poor direct-injection air atomizer spray nozzle of fuel oil grazing incidence film forming |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810430667.3A CN108758625B (en) | 2018-05-08 | 2018-05-08 | A kind of oil-poor direct-injection air atomizer spray nozzle of fuel oil grazing incidence film forming |
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| CN108758625B true CN108758625B (en) | 2019-11-12 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111981512B (en) * | 2020-07-31 | 2022-09-02 | 中国航发贵阳发动机设计研究所 | Fuel air atomization device |
| CN112264209B (en) * | 2020-09-18 | 2022-06-10 | 西北工业大学 | Spiral pipe type air atomizing nozzle |
| CN113006949B (en) * | 2021-03-04 | 2022-08-02 | 西北工业大学 | Spiral oil pipe type three-gas-path air atomizing nozzle |
| CN114608834B (en) * | 2022-04-12 | 2023-07-18 | 上海交通大学 | Model device applied to aeroengine spray combustion research |
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|---|---|---|---|---|
| US3832121A (en) * | 1972-01-28 | 1974-08-27 | Arbed | Fuel injector for blast furnace |
| SU503090A2 (en) * | 1973-06-19 | 1976-02-15 | Уральское Производственно-Техническое Предприятие "Уралэнергочермет" | Nozzle |
| GB1447584A (en) * | 1973-02-08 | 1976-08-25 | Oertli Standard Ag | Burner mixing head for the combustion of liquid fuels |
| CN200955738Y (en) * | 2006-07-26 | 2007-10-03 | 李冬梅 | Burner for sulfur recovery |
| CN107228362A (en) * | 2017-06-10 | 2017-10-03 | 北京航空航天大学 | A kind of oil-poor direct-injection low pollution combustor of multiple spot with precombustion chamber |
| CN107289460A (en) * | 2017-06-10 | 2017-10-24 | 北京航空航天大学 | A kind of oil-poor direct-injection air atomizer spray nozzle of pre- membranous type |
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2018
- 2018-05-08 CN CN201810430667.3A patent/CN108758625B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3832121A (en) * | 1972-01-28 | 1974-08-27 | Arbed | Fuel injector for blast furnace |
| GB1447584A (en) * | 1973-02-08 | 1976-08-25 | Oertli Standard Ag | Burner mixing head for the combustion of liquid fuels |
| SU503090A2 (en) * | 1973-06-19 | 1976-02-15 | Уральское Производственно-Техническое Предприятие "Уралэнергочермет" | Nozzle |
| CN200955738Y (en) * | 2006-07-26 | 2007-10-03 | 李冬梅 | Burner for sulfur recovery |
| CN107228362A (en) * | 2017-06-10 | 2017-10-03 | 北京航空航天大学 | A kind of oil-poor direct-injection low pollution combustor of multiple spot with precombustion chamber |
| CN107289460A (en) * | 2017-06-10 | 2017-10-24 | 北京航空航天大学 | A kind of oil-poor direct-injection air atomizer spray nozzle of pre- membranous type |
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| CN108758625A (en) | 2018-11-06 |
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