CN208846474U - A kind of folding V-type bluff body eddy flameholder - Google Patents
A kind of folding V-type bluff body eddy flameholder Download PDFInfo
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- CN208846474U CN208846474U CN201820701210.7U CN201820701210U CN208846474U CN 208846474 U CN208846474 U CN 208846474U CN 201820701210 U CN201820701210 U CN 201820701210U CN 208846474 U CN208846474 U CN 208846474U
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Abstract
The utility model discloses a kind of folding V-type bluff body eddy flameholders, belong to Thermal Energy and Power Engineering field, it is combined by the same or similar folding V-type bluff body eddy flameholder monomer of several groups structure, each flameholder monomer include two cross-sections, etc. the aerofoils of spanwise lengths angularly α is welded, or be directly prepared by high temperature alloy increasing material manufacturing；The spanwise length of aerofoil is L, the groove width that value is 4~8 times.The combining form of several flameholder monomers are as follows: radial, circumferentially, or radial direction is mixed with circumferential.The utility model is good to incoming flow adaptability, and it is wide to put out boundary for good, the flame stabilization of steady combustion property；Bluff body downstream gas mixing is good, and flow resistance is small, and total pressure recovery coefficient is high；Structure is simple, is easy to completely grasp its flowing and combustion characteristics under different operating conditions, it is easier to have model with aero-engine and be matched, improve existing aero-engine performance.
Description
Technical field
The utility model belongs to Thermal Energy and Power Engineering field, specifically a kind of folding V-type bluff body eddy flameholder.
Background technique
After-burner is that military aviation gas-turbine unit is different from one of important feature of civil engine,
It is come further by being burnt in aero-engine jet pipe upstream using the uncombusted oxygen tissue regnition of main chamber
The fuel gas temperature and combustion gas speed that nozzle sprays are promoted, the motor power in the short time is made to be increased dramatically.
After-burner can improve comprehensively opportunity of combat mobility and expand flight envelope to improve airplane thrust weight ratio in the short time
(ceiling can be increased to 22~23km, maximum flight Mach number is increased to 2.5~3) promotes opportunity of combat short takeoff, system sky, cuts
Hit, critical capabilities, the performance such as prominent anti-and escape also directly influence the limiting performance of the weaponrys such as opportunity of combat, guided missile, often
In several minutes of afterbunring unlatching or even several seconds, it will just determine opportunity of combat and the final and decisive juncture of pilot, and determine guided missile
It dashes forward anti-success or failure and hit rate.However also just since after-burner is worked in always near Engine Limit operating condition, building ring
Border is also that engine thermal end pieces conditional one of is the most badly located, and severe operating condition gives aeroengine thrust augmentation Combustion chamber design
Bring matter of utmost importance is exactly combustion instability problem.Such as bibliography [1]: " combustion instability simulating experiment technique "；
Zhang Mengzheng writes, publishing house, Northwestern Polytechnical University, and the combustion instability of after-burner is vibrated with being similar to acoustic resonance type
Form, be divided into low frequency, intermediate frequency and high-frequency combustion instability according to frequency.
Combustion instability in afterbunring room is other than leading to flame oscillation quenching (extinct), it is also possible to cause 1.
Combustion chamber part thermal force improves, and causes structural material deformation, ablation even entirely ineffective；2. the overload that flame pulsation generates carries
Lotus causes mechanical damage；3. engine performance is caused to deviate design point, thrust big ups and downs will such as takeoff phase burning unstability
Lead to the serious accident of thrust rapid drawdown, fatal crass；4. giving nozzle (the especially vectored thrust spray of new engine
Pipe) it accurately controls and brings difficulty.Therefore, installation and engine design performance, design must be rationally designed in afterbunring room
The flameholder that operating condition matches, to ensure still to be able to preferably tissue igniting under severe conditions, stablize burning.
The structure and layout of flameholder determine the ignition performance of after-burner, flame stabilization performance, burning effect
Rate and flow resistance also therefore promote the burning comprehensive performance of flameholder, reduce the resistance of flameholder, it will be able to
The performance for directly promoting after-burner, to improve the overall performance of engine.
If YF-120 is when prototype is researched and developed, the new method designed using three-dimensional flow is overcome after-burner and largely adopted
The problem of being easy to cause combustion oscillation with radial stabilizer, propose it is a kind of it is based on radial flameholder, by center ring
The after-burner that shape V-arrangement stabilizer and 12 root diameters are composed to stabilizer surely fires scheme；Bibliography [2]: " aeroplane engine
Machine structural design analysis ", Chen Guang.
The most common bluff body structure of military aero-engine after-burner flameholder is V-arrangement bluff body at present, i.e.,
The two-dimensional cell body structure of flameholder is v-shaped structure, and according to actual needs, in the axial direction draws two-dimentional V-arrangement cell cube
It is stretched into three-dimensional flameholder cell cube, finally by certain combining form, by these three-dimensional flameholder cell cubes
Group is combined into the combination of annular flame stabilizer, radial flameholder or annular and radial direction, is practically used for forming flame on duty
Vapor flame holder also can be regarded as the V-arrangement bluff bodies of built-in oil gas jets a kind of.
But the shortcomings that V-arrangement bluff body, is also very clear, i.e., the pitot loss of non-Afterburning condition is big, and flame holding is only by next
Oil-gas ratio control is flowed, igniting oil-gas ratio is high, and oil-poor stable combustion range is relatively narrow, and high-altitude goes booster poor reliability, flame stabilization
Wall temperature is uneven, is also easy to produce malformation etc..The simple modifications of early stage are using gap V-type (double V-shaped) bluff body thus
Structure, bibliography [3]: the development and application [J] Push Technology of the double V-shaped flameholder of Zhang Hongbin, Wang Jigen, 1994,
15 (3): 38-43.), double v-shaped flame stabilizers are almost the same with v-shaped flame stabilizer in terms of main design parameters, difference
The leading edge being in double v-shaped flame stabilizers increases a lesser V-arrangement stabilizer, passes through the set of size flameholder
It is folded, the air inlet seam of twice one fixed width is formed on head.
Compared with v-shaped flame stabilizer, the air flow structure of double v-shaped flame stabilizers is changed: it is by two strands of air-flows
It is formed, one is to bypass the mainstream of main stabilizer, one is to bypass small stabilizer, flows into the pre-burning stream inside main stabilizer.
This two plume is dynamic to form respectively large and small two recirculating zones, and passes through the interaction of two recirculating zones, ultimately forms narrow and long
Big recirculating zone, the center of vorticity of this recirculating zone in main stabilizer, and igniter be arranged in main stabilizer, small stabilizer rear
Neighbouring position, flame is by the principle maintained as v-shaped flame stabilizer --- non-fuel vapor is involved in by recirculating zone
Fire region, it is ensured that combustion process continues.
The improvement maximum compared to v-shaped flame stabilizer of double V flameholders is reduction of blockage ratio and pitot loss, for
The other shortcomings of v-shaped flame stabilizer then improve a kind of limited, substantially to optimize closer to head vaporation-type flame stabilization
Device.At the same time, double V flameholders increase the complexity in structure and consequently lead to reduction and the structure weight of reliability
The increase of amount, this is then a kind of retroversion for the overall development trend of flameholder.So far to bluff body structure fire
Flame stabilizer is the most bold, radical and successful attempt to be that BJ University of Aeronautics & Astronautics sings teaching inventive " THE BARCHAN DUNE VORTEX heartily
(BD) flameholder "；Bibliography [4]: Theoretical and Experimental Study [J] of, Ning Huang In Stability of The Barchan Dune Vortex Flame is sung heartily
Engineering Thermophysics journal, 1982, V3 (1): the working principle of 89-95.BD flameholder is mentioned by shortening or collapsing whirlpool tail
High whirlpool tail region barometric gradient reduces the flow curvature of vortex adverse current turning point and increases shear velocity gradient at this, finally blunt
Vortex structure is formed between the ox horn of two, body downstream, significantly improves vortex stability, due to vortex homeostasis, in this region
Ignition also can get good combustion stability.
From performance, BD flameholder has significantly widened the two-dimensional cell body structure flame using V-arrangement bluff body as representative
The oil-poor of stabilizer puts out boundary, and reduces flow resistance about 75%~80%, solves multiple military whirlpools of emphasis model at that time
Fuel-injection engine after-burner flame stabilization problem；And in terms of design theory angle, the meaning of BD flameholder is then more prominent
Out --- on the one hand, BD flameholder based on vortex Theory of Stability, it is locally steady about vortex bibliography [5]: to sing heartily
Qualitatively research [J] Engineering Thermophysics journal, 1981, V2 (4): 394-400. is really by the design of flameholder from being based on
" the subjectivity design " of engineering experience driving has risen to " positive design and rational " level driven by eddy dynamic theory, this is boat
Great-leap-forward development of empty engine core component design methodology；On the other hand it is based on the phase interaction between three-dimensional vortex
With mechanism, " standing vortex " structure with stiff stability actively is constructed using the space three-dimensional solid in flow field, even more base in the past
In a quantum jump of the after-burner flameholder design theory of two-dimensional cell body structure.But undeniably, BD flame is steady
Determining device, there is also some the shortcomings that limiting its further development and application:
(1) wedge angle that both ends are shunk causes the circumferential flame that joins there are certain difficulty, and the curved design at maximum groove width is also unfavorable
In radially joining flame, need additionally to increase the connection flame structure between BD flameholder each unit body thus, it is multiple that this just brings structure
Increase, the rising of reduction (the joining flame structure to be not easy to cool down, be easy ablation) and construction weight of reliability of miscellaneous degree.
(2) excessively stable vortex structure causes downstream tail shear layer diffusion angle less than normal, this is entirely adding to flame
The indoor propagation of power burning brings adverse effect, is easy to appear the problem of Exit temperature distribution unevenness, needs additionally to increase thus
Circumferential annular flame stabilizer.
(3) the BD flameholder of Modeling of Complex Surface and its vortex Theory of Stability relied on, directly bring and set
The problem of counting excessive parameter, design difficulty increase and model adaptability aspect, which also limits it to grind in subsequent fanjet
The further development and application in hair stage.
(4) it is different from v-shaped flame stabilizer structure, BD flameholder is added by the complex-curved structure being put together of two panels
Work craftsmanship is poor, and in the afterbunring room of high temperature and high speed high load, surface temperature distribution unevenness easily occurs, appearance becomes
Shape leads to problems such as the decline of steady fuel efficiency fruit even fail, this is for a new generation for having high requirements in terms of reliability and maintainability
It is for military gas-turbine unit and unacceptable.
In several years hereafter, due to many, the either BD flameholder still rotation in relation to standing vortex mechanism
Whirlpool Theory of Stability, which all fails to obtain, to be continued and develops well, these defects of BD flameholder also fail really to solve,
And associated research work is also carried out seldom, this is very unluckily.
Utility model content
In order to solve high speed, under unstable state inlet flow conditions, fuel ignition difficulty is big, flame is not easy to remain steady for the utility model
Surely the problems such as burning proposes a kind of folding V-type bluff body eddy flameholder, can be applied not only to military high-performance jet
Formula aero-engine main combustion chamber and after-burner, guided missile (high-speed unmanned aerial vehicle) engine supersonic combustor and other requirements
The field of power machinery for stablizing burning is realized in high-speed flow；It can also be used for civilian burner field.
The folding V-type bluff body eddy flameholder is stayed by the same or similar folding V-type bluff body of several groups structure
Whirlpool flameholder monomer is combined into, each flameholder monomer include two cross-sections, etc. spanwise lengths aerofoil by angle
Degree α is welded, or is directly prepared by high temperature alloy increasing material manufacturing；
The combining form of several flameholder monomers are as follows: radial, circumferentially, or radial direction is mixed with circumferential, is installed on aviation
The after-burner section of engine, the combination outer end of several flameholder monomers are adopted according to the tube structure of after-burner
It is connected with the cylinder of conventional structure and after-burner, conical inner body of the inner end close to after-burner；
Wherein radial combining form is divided into isometric group according to the working characteristics of different aeroengine thrust augmentation combustion chambers
It closes or combination of long drives and drop shots is combined；
Circumferential combining form presses the first connected form for end face weld by the flameholder monomer of 8~20 equal lengths
It is connected together, is fixed on the circle wall of after-burner；The flameholder monomer number that circumferentially combines, flameholder monomer
Size by after-burner design requirement determine；
The radial hybrid combining with circumferential direction, had both contained circumferential flameholder monomer type of attachment, and had also contained diameter
To flameholder monomer type of attachment；And circumferential type of attachment is set as needed and encloses for 1 circle~3, and is mounted on whole
A composite structure is connect with the inside of radial flameholder monomer in the inner part, using welding manner.
Utility model has the advantages that
(1) a kind of folding V-type bluff body eddy flameholder, it is good to incoming flow adaptability, by adjusting bluff body design parameter
α, ρ, L, D can form spatial position not with incoming flow in incoming flow Ma=0.1~1, the condition range of Re=60000~200000
The stabilization standing vortex of change；
(2) a kind of folding V-type bluff body eddy flameholder, it is good to inherit the oil-poor firing characteristic of BD flameholder, surely
The good feature of combustion property can be completed to light a fire in oil-poor state, and when during which sudden change occurs for incoming flow operating condition, oil-gas ratio, flame can still be kept
Stablize, it is wide to put out boundary；
(3) a kind of folding V-type bluff body eddy flameholder compares BD flameholder, and connection flame is more preferable, and each monomer can
Annular that is seamless and being unified into complete closure guarantees that circumferential flame distribution is uniform；
(4) a kind of folding V-type bluff body eddy flameholder, bluff body downstream gas mixing is good, when using radial structure,
Also the inside and outside effective blending for containing air-flow can be realized in not Afterburning condition；
(5) a kind of folding V-type bluff body eddy flameholder, flow resistance is small, and total pressure recovery coefficient is high；
(6) a kind of folding V-type bluff body eddy flameholder, structure are much simpler compared to BD flameholder, only than passing
System V-type bluff body flameholder increases two control parameters, is easy to completely grasp its flowing and burning under different operating conditions
Characteristic, it is easier to have model with aero-engine and be matched, improve existing aero-engine performance.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram for folding V-type bluff body eddy flameholder of the utility model；
Fig. 2 is a kind of Local map for folding V-type bluff body eddy flameholder of the utility model；
Fig. 3 is a kind of schematic view of the mounting position for folding V-type bluff body eddy flameholder of the utility model；
Fig. 4 is a kind of Radial Combinations schematic diagram for folding V-type bluff body eddy flameholder of the utility model；
Fig. 5 is a kind of circumferential combination diagram for folding V-type bluff body eddy flameholder of the utility model；
Fig. 6 is a kind of radial direction for folding V-type bluff body eddy flameholder of the utility model and circumferential combination diagram.
In figure, 1- aerofoil；2-V type bluff body section；
Specific embodiment
The specific implementation method of the utility model is described in detail with reference to the accompanying drawing.
The utility model is on the basis of furtheing investigate standing vortex Steady burning mechanism, in conjunction with dune-shaped stationary-eddy flameholder and tradition
The advantage of V-flame stabilizer respectively, the bluff body eddy flameholder knot for proposing a kind of Three-dimensional Flow, folding V-structure
Structure.
The folding V-type bluff body eddy flameholder, as shown in Figure 1, the folding same or similar by several groups structure
Folded V-type bluff body eddy flameholder monomer is combined into, each flameholder monomer include two cross-sections, etc. spanwise lengths
Aerofoil 1, as shown in Fig. 2, angularly α welding is put together two aerofoils 1 straight flange V-type bluff body for selecting two panels traditional, or
It is directly prepared by high temperature alloy increasing material manufacturing；Angle of sweep α angular range between two aerofoils 1 is 60 degree to 150 degree, and is wished
Hope the standing vortex position formed related with standing vortex area size.The spanwise length of aerofoil is L, the groove width that value is 4~8 times；V-type is blunt
Body section 2 includes groove width D and apex angle ρ.
Groove width D is calculated according to after-burner flame holding formula:
VFHFor blow-off velocity, Mach number M=0.1~0.35 is generally taken；TtFor after-burner temperature of incoming flow, according to inside and outside
Contain gas temperature, generally Tt=300K~900K, PsFHPressure is put out for after-burner, takes PsFH=69kpa, KstFor stabilization
Property parameter generally takes K according to domestic air mail engine modular design conditionst=5~9.
Apex angle ρ rule of thumb, generally takes at 30~45 degree.Value is excessive to will lead to blockage ratio and flow resistance sharp increase, takes
It is worth too small, is unfavorable for the formation of recirculating zone.
Consider that the convenience of processing with assembly, each flameholder monomer further include monomer span-wise length A and flow to string
Two parameters of long d.Obvious, have:
Compared to traditional V-type bluff body flameholder that only two parameter groove width D and apex angle ρ are controlled, folds V-type bluff body and stay
Whirlpool flameholder is practical to merely add span L and two parameters of angle of sweep α.
It is unrelated with speed of incoming flow since the formation of standing vortex is to flow the performance of modelling according to vortex Theory of Stability, only with
It is related to fold four design parameters of V-type bluff body eddy flameholder, therefore when tri- parameters of L, D, ρ all determine, for ginseng
The number general rules of α are that, at α > 90 °, α is bigger, standing vortex to flow to length longer, open up narrower to width；60 ° < α < 90 °
When, standing vortex flow direction is first reduced with span-wise length, after be held essentially constant, stability further enhances；When α < 60 ° then no longer intentionally
The fluidal texture of justice.
The combining form of several flameholder monomers are as follows: radial, circumferentially, or radial direction is mixed with circumferential, is installed on aviation
The after-burner section of engine, as shown in figure 3, the combination outer end (radial outside) of several flameholder monomers is according to reinforcing
The tube structure of combustion chamber is connected using the cylinder of the conventional structures such as bolt, Tenon, key sheath and after-burner, and inner end is (radial
Inside) close to the conical inner body (sudden expansion) of after-burner.
Radial combining form, according to the working characteristics of different aeroengine thrust augmentation combustion chambers, be divided into isometric combination or
Combination of long drives and drop shots combination.Isometric combination folding V-flame of 12~20 equal lengths of equidistantly distributed i.e. in a circumference is stablized
The folding V-flame stabilizer monomer of device monomer, each equal length is fixed on the circle wall of after-burner by aerofoil end face；
As shown in figure 4, combination of long drives and drop shots includes equally spaced long flameholder monomer combination and short flameholder monomer
The length of combination, short flameholder monomer combination selects end-to-end 1~2 welded together flameholder monomer, long
The length of flame stabilizer monomer combination selects end-to-end 2~3 welded together flameholder monomer.
The number of the combination of long flameholder monomer and the combination of short flameholder monomer is according to adding in combination of long drives and drop shots combination
The diameter of power combustion chamber determines, wherein the flameholder monomer numerical value selected in the combination of long flameholder monomer, is less than
Equal to 2 times of a numerical value of short flameholder monomer combination Flame stabilizer monomer.
The aerofoil end face of each long flameholder monomer combination or the combination of short flameholder monomer is fixed on reinforcing
On the circle wall of combustion chamber；
As shown in figure 5, circumferential combining form is by the flameholder monomer of 8~20 equal lengths by the first connected shape
Formula welds together end face, is fixed on the circle wall of after-burner；The flameholder monomer number that circumferentially combines, flame
The size of stabilizer monomer is determined by the design requirement of after-burner.Circumferential combining form and after-burner cylinder are dashed forward
Expansion can be attached with heating resisting metal truss.
As shown in fig. 6, the radial hybrid combining with circumferential direction, is the equal of Radial Combinations and the mixing circumferentially combined, both wrapped
Contain circumferential flameholder monomer type of attachment, also contains radial flameholder monomer type of attachment；And it is circumferential
Type of attachment be set as needed as~3 circle of 1 circle, and be mounted on entire composite structure in the inner part, using welding manner with
The inside of radial flameholder monomer connects, for realizing functions such as flame on duty maintenances.
The combination and assembly principle of above-mentioned flameholder monomer, do not have area with traditional V-type bluff body or BD type bluff body
Not, original V-type bluff body arrangement mode can be directly continued to use, can also be made a change according to actual needs.
Working principle and process:
Folding V-type bluff body eddy flameholder of the present invention, when work, incoming flow volume takes fuel, from side shown in Fig. 1
To flowing through two aerofoils, be ρ since the section of flameholder is curvature, be highly the plane V-type bluff body of D, fluid it is inevitable from
The separation of plane V-type bluff body, and form a pair in plane V-type bluff body downstream and flow to vortex, traditional V-type bluff body flameholder exists
This realizes igniting and burning to the center of vorticity area of low pressure for flowing to vortex.
And since folding V-type bluff body is gathered around, there are two two wings that are symmetrical, being stretched with certain angle of sweep α, length L cross-section
Face on the orthogonal plane of plane V-type bluff body, and constitutes the whole V-type on a three-dimensional space, therefore incoming flow will also be from two
It is flowed at the rim openings of a aerofoil to the central plane direction of two aerofoils, and forms the vortex extended to distribution；
Fall off from plane V-type bluff body section flow to vortex with open up it is vertical to the vortex direction of distribution, interaction, finally
Form that a pair of of spatial position is stable, is not easy to change with inlet flow conditions and changes folding V-type bluff body flameholder downstream
Standing vortex.Standing vortex center of vorticity can be stable in the presence of bluff body downstream specific position, not with incoming flow situation change, only with above-mentioned bluff body geometry
Design parameter is related.According to this characteristic, at this to standing vortex center arrangement igniter, it can be ensured that flame stabilization burning,
Play the steady fuel efficiency fruit more than conventional planar V-type bluff body.
Claims (4)
1. a kind of folding V-type bluff body eddy flameholder, which is characterized in that by the same or similar folding V of several groups structure
Type bluff body eddy flameholder monomer is combined into, each flameholder monomer include two cross-sections, etc. spanwise lengths
Angularly α's aerofoil is welded, or is directly prepared by high temperature alloy increasing material manufacturing；
The combining form of several flameholder monomers are as follows: radial, circumferentially, or radial direction is mixed with circumferential, is installed on aeroplane engine
The after-burner section of machine, several flameholder monomers combination outer end and after-burner cylinder connect, inner end close to
The conical inner body of after-burner；
Wherein radial combining form is divided into isometric combination or combination of long drives and drop shots combination；
End face is welded on by the flameholder monomer of 8~20 equal lengths by end to end form by circumferential combining form
Together, it is fixed on the circle wall of after-burner；
The radial hybrid combining with circumferential direction, had both contained circumferential flameholder monomer type of attachment, had also contained radial
Flameholder monomer type of attachment；And circumferential type of attachment is set as needed and encloses for 1 circle~3, and is mounted on entire group
It closes structure in the inner part, is connect using welding manner with the inside of radial flameholder monomer.
2. a kind of folding V-type bluff body eddy flameholder as described in claim 1, which is characterized in that two wings
Angle of sweep α angular range between face is 60 degree to 150 degree.
3. a kind of folding V-type bluff body eddy flameholder as described in claim 1, which is characterized in that the aerofoil
Spanwise length is L, the groove width that value is 4~8 times；Airfoil section includes groove width D and apex angle ρ.
4. a kind of folding V-type bluff body eddy flameholder as described in claim 1, which is characterized in that described isometric group
The folding V-flame stabilizer monomer of i.e. 12~20 equal lengths of equidistantly distributed in a circumference is closed, each equal length
V-flame stabilizer monomer is folded to be fixed on the circle wall of after-burner by aerofoil end face；
Combination of long drives and drop shots combining form includes that equally spaced long flameholder monomer combination and short flameholder monomer combine, short
The length of flameholder monomer combination selects end-to-end 1~2 welded together flameholder monomer, long flame stabilizer
The length of monomer combination selects end-to-end 2~3 welded together flameholder monomer；Each long flameholder monomer
The aerofoil end face of combination or the combination of short flameholder monomer is fixed on the circle wall of after-burner.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820701210.7U CN208846474U (en) | 2018-05-11 | 2018-05-11 | A kind of folding V-type bluff body eddy flameholder |
Applications Claiming Priority (1)
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| CN201820701210.7U CN208846474U (en) | 2018-05-11 | 2018-05-11 | A kind of folding V-type bluff body eddy flameholder |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112610983A (en) * | 2020-12-07 | 2021-04-06 | 河北汉光重工有限责任公司 | Ignition and combustion stabilizing device of water-jet engine |
| CN113701188A (en) * | 2021-08-19 | 2021-11-26 | 中国航发贵阳发动机设计研究所 | Evaporation formula stabilizer structure |
| CN114440259A (en) * | 2021-12-14 | 2022-05-06 | 西安航天动力研究所 | Spliced flame stabilizing device with multiple oil supply paths |
| CN115962484A (en) * | 2023-02-23 | 2023-04-14 | 中国航发沈阳发动机研究所 | Afterburning chamber for aeroengine |
-
2018
- 2018-05-11 CN CN201820701210.7U patent/CN208846474U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112610983A (en) * | 2020-12-07 | 2021-04-06 | 河北汉光重工有限责任公司 | Ignition and combustion stabilizing device of water-jet engine |
| CN112610983B (en) * | 2020-12-07 | 2022-03-25 | 河北汉光重工有限责任公司 | Ignition and combustion stabilizing device of water-jet engine |
| CN113701188A (en) * | 2021-08-19 | 2021-11-26 | 中国航发贵阳发动机设计研究所 | Evaporation formula stabilizer structure |
| CN114440259A (en) * | 2021-12-14 | 2022-05-06 | 西安航天动力研究所 | Spliced flame stabilizing device with multiple oil supply paths |
| CN114440259B (en) * | 2021-12-14 | 2023-01-17 | 西安航天动力研究所 | Spliced flame stabilizing device with multiple oil supply paths |
| CN115962484A (en) * | 2023-02-23 | 2023-04-14 | 中国航发沈阳发动机研究所 | Afterburning chamber for aeroengine |
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