CN207905950U - A kind of adaptive pulse-knocking engine shrink nozzle - Google Patents
A kind of adaptive pulse-knocking engine shrink nozzle Download PDFInfo
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- CN207905950U CN207905950U CN201820203572.3U CN201820203572U CN207905950U CN 207905950 U CN207905950 U CN 207905950U CN 201820203572 U CN201820203572 U CN 201820203572U CN 207905950 U CN207905950 U CN 207905950U
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- detonation chamber
- shrink
- shrink nozzle
- nozzle
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Abstract
The utility model discloses a kind of adaptive pulse-knocking engine shrink nozzles, including conventional scale detonation chamber, shrink nozzle and shrink nozzle discharge area regulating mechanism, shrink nozzle is truncated cone-shaped structure, the big end of shrink nozzle and the outlet end of conventional scale detonation chamber are hinged, and shrink nozzle discharge area regulating mechanism is connected between conventional scale detonation chamber and shrink nozzle；Shrink nozzle includes interior handing-over auricle and diplomatic lug piece；The quantity of shrink nozzle discharge area regulating mechanism is equal with the interior handing-over quantity of auricle, each shrink nozzle discharge area regulating mechanism, which corresponds in one, joins auricle, and shrink nozzle discharge area regulating mechanism includes drainage tube, minute yardstick detonation chamber, air rammer, elastic parts and hinge bar.The adjusting for the energy hole nozzle exit area that the utility model is generated using pulse-knocking engine own combustion makes combustion gas expand the efficiency for improving pulse-knocking engine completely as far as possible to adapt to different pinking situations.
Description
Technical field
The invention belongs to pulse-knocking engine technical fields, are specifically related to a kind of adaptive pulse-knocking engine receipts
Contracting jet pipe.
Background technology
Pulse-knocking engine (Pulse Detonation Engine, abbreviation PDE) is a kind of periodical detonation wave of utilization
The momentum that the high-temperature high-pressure fuel gas of generation is sent out ejects the novel propulsion system for generating thrust from tail portion.Pulse-knocking engine
In detonation combustor after combustion mixture burning the pinking wave energy that is formed generate high gaseous-pressure (1.5MPa~6MPa) and
Fuel gas temperature (is more than 2000K), and has higher speed (2000m/s or so), while pulse-knocking engine is not present
The rotary parts such as turbine, therefore its burning is approximately isochoric combustion, the isobaric combustion compared to typical turbine jet engine has
There is the higher thermal efficiency.The thrust of pulse-knocking engine can by fill factor, stuffing pressure, detonation frequency etc. it is many-sided because
Element influences, and the thermal efficiency of pulse-knocking engine can be improved by improving stuffing pressure, and can effectively be improved and be filled out using shrink nozzle
Pressurising power, and then efficiency is improved, increase thrust.
Allgood et al. thinks that optimal exit area ratio is the functional relation of fill factor by experimental study.Work as filling
When coefficient is less than or equal to 0.5, optimal structure type is no jet pipe pulse-knocking engine；When fill factor increases and reaches
When 1, contracting nozzle can improve thrust.In their experiment, expanding nozzle can also improve performance.But with contracting nozzle
Difference, expanding nozzle are sensitive to firing delay with no jet pipe.But investigation on pulse detonation engine nozzles flowing is periodically non-fixed
Normal, there is the interaction of complicated shock wave, dilatational wave, contact surface, even if in the different moments of same process, jet pipe experience
Fluidised form be also likely to be present larger difference with the difference of fill factor and stuffing pressure, therefore, if it is desired that combustion gas is logical
It crosses shrink nozzle to expand completely as far as possible, it is necessary to use different shrinkage ratio jet pipes, according to aerodynamic principle, shrink
Nozzle inlet pressure is bigger, and to expand completely, shrinkage ratio will be bigger.
Oran thinks that the unit performance of minute yardstick detonation engine may be than the unit performance of general pulse detonation engine
Higher, and application surface is wider.Experimental studies have found that for the detonation tube of minute yardstick, the spread speed of detonation wave is than conventional ruler
The spread speed of degree is faster.
Currently, the non-adjustable jet pipe of discharge area is the most common device of pulse-knocking engine, due to that cannot adjust in real time
Section, many operating mode gain effects can not be optimal when in use.
Invention content
It is an object of the invention to overcome above-mentioned deficiency in the prior art, a kind of adaptive pulse-knocking engine is provided
Shrink nozzle, combustion gas cannot maximumlly be made according to practical pinking situation by efficiently solving the non-adjustable jet pipe of existing discharge area
The shortcomings that expansion is to improve pulse-knocking engine efficiency completely, the device are generated using pulse-knocking engine own combustion
The adjusting of energy hole nozzle exit area, to adapt to different pinking situations, making combustion gas, expansion improves pulse completely as far as possible
The efficiency of detonation engine.
To achieve the above object, the technical solution adopted by the present invention is：A kind of adaptive pulse-knocking engine contraction spray
Pipe, it is characterised in that：Including conventional scale detonation chamber, shrink nozzle and shrink nozzle for adjusting shrink nozzle discharge area
Discharge area regulating mechanism, the shrink nozzle are truncated cone-shaped structure, the big end of the shrink nozzle and conventional scale detonation chamber
Outlet end it is hinged, the shrink nozzle discharge area regulating mechanism is located at outside conventional scale detonation chamber, and the shrink nozzle goes out
Open area regulating mechanism is connected between conventional scale detonation chamber and shrink nozzle；
The shrink nozzle includes interior handing-over auricle and diplomatic lug piece, the number of the interior handing-over auricle and diplomatic lug piece
It measures equal and is multiple, the interior handing-over auricle is arranged between the inside of two neighboring diplomatic lug piece, the interior handing-over
The big end of auricle and diplomatic lug piece is hinged with the outlet end of conventional scale detonation chamber；
The quantity of the shrink nozzle discharge area regulating mechanism is equal with the interior handing-over quantity of auricle, each contraction
Nozzle exit area regulating mechanism, which corresponds to, joins auricle in one, the shrink nozzle discharge area regulating mechanism includes drainage
Pipe, minute yardstick detonation chamber, air rammer, elastic parts and hinge bar, one end of the drainage tube and the one of minute yardstick detonation chamber
End is connected, and one end of the air rammer is stretched into the other end of minute yardstick detonation chamber and can be along minute yardstick detonation chamber
Length direction slides, and the other end of the air rammer is connect with one end of the elastic parts and by elastic parts to pneumatic living
Plug provides screen resilience, and the other end of the elastic parts and one end of hinge bar are hinged, the other end of the hinge bar with it is corresponding
Interior handing-over auricle outer wall it is hinged；The drainage tube is inclined on the outer wall of conventional scale detonation chamber, the drainage tube
The other end be connected with conventional scale detonation chamber.
A kind of above-mentioned adaptive pulse-knocking engine shrink nozzle, it is characterised in that：The elastic parts includes shell
Body, mounting rod, spring and fixed seat, the fixed seat are mounted on the bottom of shell, and the mounting rod prolongs the central axes peace of shell
On shell, one end of the mounting rod is located in shell, and the other end of the mounting rod is located at outside shell, the spring
One end is connect with mounting rod, and the other end of the spring and the inner wall of shell connect, and the spring is located in shell, is located at described
The other end of one end of mounting rod in shell and air rammer connects, be located at one end end of the mounting rod outside the shell with
One end of hinge bar is hinged, and the fixed seat is fixed on the outer wall of conventional scale detonation chamber.
A kind of above-mentioned adaptive pulse-knocking engine shrink nozzle, it is characterised in that：The shrink nozzle exit face
The quantity of product regulating mechanism, interior handing-over auricle and diplomatic lug piece is four, and four shrink nozzle discharge areas are adjusted
Mechanism is uniformly distributed on the outer wall of conventional scale detonation chamber.
A kind of above-mentioned adaptive pulse-knocking engine shrink nozzle, it is characterised in that：The drainage tube and conventional ruler
The angle spent between the outer wall of detonation chamber is 30 °~45 °.
A kind of above-mentioned adaptive pulse-knocking engine shrink nozzle, it is characterised in that：The interior handing-over auricle and outer
The big end for joining auricle is hinged by shaft and the outlet end of conventional scale detonation chamber.
A kind of above-mentioned adaptive pulse-knocking engine shrink nozzle, it is characterised in that：The length of the drainage tube is
1cm~2cm.
A kind of above-mentioned adaptive pulse-knocking engine shrink nozzle, it is characterised in that：The drainage tube and minute yardstick
The cross-sectional shape of detonation chamber is circle, and the internal diameter of the drainage tube and minute yardstick detonation chamber is equal and maximum inner diameter is 5mm.
A kind of above-mentioned adaptive pulse-knocking engine shrink nozzle, it is characterised in that：The other end of the drainage tube
It is connected later to pinking transformation section with the deflagration of conventional scale detonation chamber.
A kind of above-mentioned adaptive pulse-knocking engine shrink nozzle, it is characterised in that：The interior handing-over auricle and outer
Handing-over auricle is connected by card adapter plate, and the shape of the card adapter plate is " several " font, is fixed at the top of the card adapter plate interior
Join on auricle, the diplomatic lug piece of the card adapter plate both sides is mutually clamped with card adapter plate.
A kind of above-mentioned adaptive pulse-knocking engine shrink nozzle, it is characterised in that：Peace outside the shell
One end end for filling bar is hinged by one end of hinge and hinge bar, the other end of the hinge bar by hinge with it is corresponding interior
The outer wall for joining auricle is hinged.
Compared with the prior art, the present invention has the following advantages：
1, adaptive pulse-knocking engine shrink nozzle proposed by the present invention, need not introduce external energy, only rely on
The energy that conventional scale detonation chamber own combustion releases can realize the variation of nozzle area contraction ratio, make engine in filling system
Change nozzle exit area that can be spontaneous in the state that number and stuffing pressure are indefinite, the incomplete expansion for reducing combustion gas brings
Loss, improve the efficiency of engine.
2, the adjusting for the energy hole nozzle exit area that the present invention is generated using pulse-knocking engine own combustion, with
Different pinking situations is adapted to, combustion gas is made to expand the efficiency for improving pulse-knocking engine completely as far as possible.
3, the present invention efficiently solves the non-adjustable jet pipe of existing discharge area and cannot be maximized according to practical pinking situation
The shortcomings that so that combustion gas is expanded completely to improve pulse-knocking engine efficiency, simple structure and reasonable design and use operation side
Just.
Below by drawings and examples, the present invention is described in further detail.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the structural schematic diagram of shrink nozzle of the present invention.
Reference sign:
1-conventional scale detonation chamber；2-drainage tubes；3-minute yardstick detonation chambers；
4-air rammers；5-1-shell；5-2-mounting rod；
5-3-spring；5-4-fixed seat；6-hinge bars；
7-shafts；8-shrink nozzles；9-interior handing-over auricles；
10-diplomatic lug pieces；11-card adapter plates.
Specific implementation mode
As depicted in figs. 1 and 2, the present invention is including conventional scale detonation chamber 1, shrink nozzle 8 and for adjusting shrink nozzle 8
The shrink nozzle discharge area regulating mechanism of discharge area, the shrink nozzle 8 are truncated cone-shaped structure, the shrink nozzle 8
Big end and the outlet end of conventional scale detonation chamber 1 are hinged, and it is quick-fried that the shrink nozzle discharge area regulating mechanism is located at conventional scale
It shakes outside room 1, the shrink nozzle discharge area regulating mechanism is connected between conventional scale detonation chamber 1 and shrink nozzle 8；
The shrink nozzle 8 includes interior handing-over auricle 9 and diplomatic lug piece 10, the interior handing-over auricle 9 and diplomatic lug
The quantity of piece 10 is equal and is multiple, and the interior handing-over auricle 9 is arranged between the inside of two neighboring diplomatic lug piece 10,
The big end of the interior handing-over auricle 9 and diplomatic lug piece 10 is hinged with the outlet end of conventional scale detonation chamber 1；
The quantity of the shrink nozzle discharge area regulating mechanism is equal with the interior handing-over quantity of auricle 9, each receipts
Contracting nozzle exit area regulating mechanism, which corresponds to, joins auricle 9 in one, the shrink nozzle discharge area regulating mechanism includes drawing
Flow tube 2, minute yardstick detonation chamber 3, air rammer 4, elastic parts and hinge bar 6, one end and the minute yardstick pinking of the drainage tube 2
One end of room 3 is connected, and one end of the air rammer 4 is stretched into the other end of minute yardstick detonation chamber 3 and can be along micro- ruler
The length direction sliding of detonation chamber 3 is spent, the other end of the air rammer 4 connect with one end of the elastic parts and by elasticity
Component provides screen resilience to air rammer 4, and the other end of the elastic parts is hinged with one end of hinge bar 6, the hinge bar 6
The other end and corresponding interior handing-over auricle 9 outer wall it is hinged；The drainage tube 2 is inclined at conventional scale detonation chamber 1
On outer wall, the other end of the drainage tube 2 is connected with conventional scale detonation chamber 1.
As shown in Figure 1, the elastic parts includes shell 5-1, mounting rod 5-2, spring 5-3 and fixed seat 5-4, it is described solid
Reservation 5-4 is mounted on the bottom of shell 5-1, and the central axes that the mounting rod 5-2 prolongs shell 5-1 are mounted on shell 5-1, described
One end of mounting rod 5-2 is located in shell 5-1, and the other end of the mounting rod 5-2 is located at outside shell 5-1, the spring 5-3's
One end is connect with mounting rod 5-2, and the other end of the spring 5-3 is connect with the inner wall of shell 5-1, and the spring 5-3 is located at shell
In body 5-1, the one end for being located at the mounting rod 5-2 in the shell 5-1 is connect with the other end of air rammer 4, is located at the shell
One end end of mounting rod 5-2 outside body 5-1 is hinged with one end of hinge bar 6, and it is quick-fried that the fixed seat 5-4 is fixed on conventional scale
On the outer wall for shaking room 1.
When the pressure in minute yardstick detonation chamber 3 increases, air rammer 4 pushes mounting rod 5-2 compressed spring 5-3, shrinks
The bore of jet pipe 8 becomes smaller；When the pressure change in minute yardstick detonation chamber 3 is small, spring 5-3 pushes air rammer 4 to make toward left movement
Spring 5-3 restores to initial position, and the bore of shrink nozzle 8 becomes larger.
Elastic parts can be arranged fill factor be 0.5 when, corresponding pressure be initial position.Fill factor be with
The pressure that the filling completion burning of detonation tube the inside forms detonation wave is related, as soon as a fill factor corresponds to a pressure value,
It is that corresponding spring 5-3 is set under this fill factor just at initial position, pressure increases with regard to compressed spring 5-3.
In the present embodiment, the shrink nozzle discharge area regulating mechanism, the interior number for joining auricle 9 and diplomatic lug piece 10
Amount is four, and four shrink nozzle discharge area regulating mechanisms are uniformly distributed on the outer wall of conventional scale detonation chamber 1；
That is four shrink nozzle discharge area regulating mechanisms along conventional scale detonation chambers 1 four groups of arrangements of axial direction point, between every group
Angle be 90 °.
In the present embodiment, the angle between the drainage tube 2 and the outer wall of conventional scale detonation chamber 1 is 30 °~45 °.
As shown in Figure 1, the big end of the interior handing-over auricle 9 and diplomatic lug piece 10 is quick-fried by shaft 7 and conventional scale
The outlet end for shaking room 1 is hinged, and interior handing-over auricle 9 and diplomatic lug piece 10 can be rotated around shaft 7.
In the present embodiment, the length of the drainage tube 2 is 1cm~2cm, and the length of drainage tube 2 is small as far as possible, to ensure
Detonation wave faster passes to minute yardstick detonation chamber 3.
In the present embodiment, the cross-sectional shape of the drainage tube 2 and minute yardstick detonation chamber 3 is circle, the drainage tube 2
Equal and maximum inner diameter is 5mm with the internal diameter of minute yardstick detonation chamber 3, ensures the spread speed of detonation wave than conventional scale detonation chamber
1 spread speed is fast.The inner surface of drainage tube 2 is smooth, so that the loss of detonation wave reaches minimum；And minute yardstick detonation chamber 3
Inner surface is smooth, to ensure that air rammer 4 slides smoothness.
In the present embodiment, after the other end of the drainage tube 2 changes section with the deflagration of routine scale detonation chamber 1 to pinking
It is connected.
As shown in Fig. 2, the interior handing-over auricle 9 is connected with diplomatic lug piece 10 by card adapter plate 11, the card adapter plate
11 shape is " several " font, and the top of the card adapter plate 11 is fixed on interior handing-over auricle 9, outside 11 both sides of the card adapter plate
Join auricle 10 to be clamped with 11 phase of card adapter plate.
In the present embodiment, one end end for being located at the mounting rod 5-2 outside the shell 5-1 passes through hinge and hinge bar 6
One end is hinged, and the other end of the hinge bar 6 is hinged by hinge and the outer wall of corresponding interior handing-over auricle 9.
The operation principle of the present invention is that：In the filling stage, combustion mixture enters conventional scale detonation chamber 1, in conventional scale
The left end of detonation chamber 1 is lighted a fire, and detonation waves are formed for (DDT sections) to pinking transformation section by the deflagration of conventional scale detonation chamber 1,
Subsequent detonation wave propagation is to drainage tube 2, and a part of to continue downstream to propagate in conventional scale detonation chamber 1, a part, which flows into, draws
In flow tube 2；The detonation wave flowed into drainage tube 2, which enters in minute yardstick detonation chamber 3, to be propagated, since detonation wave is in minute yardstick pinking
Spread speed in the more conventional scale detonation chamber of spread speed in room 31 is fast, so the detonation wave in minute yardstick detonation chamber 3
Due to the presence of pressure, driving air rammer 4 moves right, and the connecting rod in air rammer 4 drives elastic parts to move right,
Elastic parts drives hinge bar 6 to rotate, and hinge bar 6 is connected on the interior handing-over auricle 9 in shrink nozzle 8, and hinge bar 6 moves
Handing-over auricle 9 and diplomatic lug piece 10 are rotated around shaft 7 in driving, to change the discharge area of shrink nozzle 8.The above mistake
Cheng Zhong, air rammer 4 are track with minute yardstick detonation chamber 3, realize short-range period sliding；Air rammer 4 should select resistance to height
The small material of temperature, rub resistance, resistance.
Basic value can be arranged in elastic parts, and when pinking wave pressure is more than basic value, air rammer 4 moves right, and receives
The discharge area face of contracting jet pipe 8 is small, and shrinkage ratio becomes larger；When pinking wave pressure is not above basic value, air rammer 4 does not move
Dynamic, the internal diameter as conventional scale detonation chamber 1 of shrink nozzle 8 is equivalent to the situation of no jet pipe.
The above is only presently preferred embodiments of the present invention, is not imposed any restrictions to the present invention, every according to the present invention
Technical spirit still falls within skill of the present invention to any simple modification, change and equivalent structure transformation made by above example
In the protection domain of art scheme.
Claims (10)
1. a kind of adaptive pulse-knocking engine shrink nozzle, it is characterised in that：Including conventional scale detonation chamber (1), shrink
Jet pipe (8) and shrink nozzle discharge area regulating mechanism for adjusting shrink nozzle (8) discharge area, the shrink nozzle
(8) it is truncated cone-shaped structure, the big end of the shrink nozzle (8) and the outlet end of conventional scale detonation chamber (1) are hinged, the contraction
Nozzle exit area regulating mechanism is located at conventional scale detonation chamber (1) outside, the shrink nozzle discharge area regulating mechanism connection
Between conventional scale detonation chamber (1) and shrink nozzle (8)；
The shrink nozzle (8) includes interior handing-over auricle (9) and diplomatic lug piece (10), the interior handing-over auricle (9) and diplomacy
The quantity of lug piece (10) is equal and is multiple, and interior handing-over auricle (9) setting is in two neighboring diplomatic lug piece (10)
Inside between, outlet of the big end with conventional scale detonation chamber (1) of the interior handing-over auricle (9) and diplomacy lug piece (10)
End is hinged；
The quantity of the shrink nozzle discharge area regulating mechanism is equal with the interior quantity of handing-over auricle (9), each contraction
Nozzle exit area regulating mechanism corresponds to handing-over auricle (9) in one, and the shrink nozzle discharge area regulating mechanism includes drawing
Flow tube (2), minute yardstick detonation chamber (3), air rammer (4), elastic parts and hinge bar (6), one end of the drainage tube (2) with
One end of minute yardstick detonation chamber (3) is connected, and the other end of minute yardstick detonation chamber (3) is stretched into one end of the air rammer (4)
It is interior and can be slided along the length direction of minute yardstick detonation chamber (3), the other end of the air rammer (4) and the elastic group
One end of part connects and provides screen resilience, the other end and hinge bar of the elastic parts to air rammer (4) by elastic parts
(6) one end is hinged, and the other end of the hinge bar (6) and the outer wall of corresponding interior handing-over auricle (9) are hinged；The drainage tube
(2) it is inclined on the outer wall of conventional scale detonation chamber (1), the other end of the drainage tube (2) and conventional scale detonation chamber
(1) it is connected.
2. a kind of adaptive pulse-knocking engine shrink nozzle described in accordance with the claim 1, it is characterised in that：The elasticity
Component includes shell (5-1), mounting rod (5-2), spring (5-3) and fixed seat (5-4), and the fixed seat (5-4) is mounted on shell
The bottom of body (5-1), the central axes that the mounting rod (5-2) prolongs shell (5-1) are mounted on shell (5-1), the mounting rod
The one end of (5-2) is located in shell (5-1), and the other end of the mounting rod (5-2) is located at shell (5-1) outside, the spring
The one end of (5-3) is connect with mounting rod (5-2), and the other end of the spring (5-3) is connect with the inner wall of shell (5-1), described
Spring (5-3) is located in shell (5-1), is located at one end and the air rammer (4) of the mounting rod (5-2) in the shell (5-1)
Other end connection, the one end for being located at one end end and the hinge bar (6) of the mounting rod (5-2) of the shell (5-1) outside is hinged,
The fixed seat (5-4) is fixed on the outer wall of conventional scale detonation chamber (1).
3. a kind of adaptive pulse-knocking engine shrink nozzle described in accordance with the claim 1, it is characterised in that：The contraction
The quantity of nozzle exit area regulating mechanism, interior handing-over auricle (9) and diplomatic lug piece (10) is four, four contractions
Nozzle exit area regulating mechanism is uniformly distributed on the outer wall of conventional scale detonation chamber (1).
4. a kind of adaptive pulse-knocking engine shrink nozzle described in accordance with the claim 1, it is characterised in that：The drainage
The angle managed between (2) and the outer wall of conventional scale detonation chamber (1) is 30 °~45 °.
5. a kind of adaptive pulse-knocking engine shrink nozzle described in accordance with the claim 1, it is characterised in that：The interior friendship
The big end of lug piece (9) and diplomatic lug piece (10) is hinged by shaft (7) and the outlet end of conventional scale detonation chamber (1).
6. a kind of adaptive pulse-knocking engine shrink nozzle described in accordance with the claim 1, it is characterised in that：The drainage
The length for managing (2) is 1cm~2cm.
7. a kind of adaptive pulse-knocking engine shrink nozzle described in accordance with the claim 1, it is characterised in that：The drainage
The cross-sectional shape for managing (2) and minute yardstick detonation chamber (3) is circle, the drainage tube (2) and minute yardstick detonation chamber (3) it is interior
Diameter is equal and maximum inner diameter is 5mm.
8. a kind of adaptive pulse-knocking engine shrink nozzle described in accordance with the claim 1, it is characterised in that：The drainage
The other end for managing (2) is connected with the deflagration of conventional scale detonation chamber (1) to pinking transformation section later.
9. a kind of adaptive pulse-knocking engine shrink nozzle described in accordance with the claim 1, it is characterised in that：The interior friendship
Lug piece (9) is connected with diplomatic lug piece (10) by card adapter plate (11), and the shape of the card adapter plate (11) is " several " font,
It is fixed at the top of the card adapter plate (11) on interior handing-over auricle (9), the diplomatic lug piece (10) of card adapter plate (11) both sides
It is mutually clamped with card adapter plate (11).
10. a kind of adaptive pulse-knocking engine shrink nozzle according to claim 2, it is characterised in that：Positioned at institute
One end end for stating the mounting rod (5-2) of shell (5-1) outside is hinged by one end of hinge and hinge bar (6), the hinge bar
(6) the other end is hinged by hinge and the outer wall of corresponding interior handing-over auricle (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820203572.3U CN207905950U (en) | 2018-02-05 | 2018-02-05 | A kind of adaptive pulse-knocking engine shrink nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820203572.3U CN207905950U (en) | 2018-02-05 | 2018-02-05 | A kind of adaptive pulse-knocking engine shrink nozzle |
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| Publication Number | Publication Date |
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| CN207905950U true CN207905950U (en) | 2018-09-25 |
Family
ID=63563259
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| CN201820203572.3U Expired - Fee Related CN207905950U (en) | 2018-02-05 | 2018-02-05 | A kind of adaptive pulse-knocking engine shrink nozzle |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150305A (en) * | 2018-02-05 | 2018-06-12 | 西安航空学院 | A kind of adaptive pulse-knocking engine shrink nozzle |
| CN113153581A (en) * | 2021-04-28 | 2021-07-23 | 哈尔滨工程大学 | Flexible double-bell-shaped spray pipe with structure of flow charging pipeline coated by extensible material |
| CN113250854A (en) * | 2021-04-28 | 2021-08-13 | 中国航发沈阳发动机研究所 | Spray pipe structure |
-
2018
- 2018-02-05 CN CN201820203572.3U patent/CN207905950U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150305A (en) * | 2018-02-05 | 2018-06-12 | 西安航空学院 | A kind of adaptive pulse-knocking engine shrink nozzle |
| CN108150305B (en) * | 2018-02-05 | 2023-05-12 | 西安航空学院 | Self-adaptive pulse detonation engine convergent nozzle |
| CN113153581A (en) * | 2021-04-28 | 2021-07-23 | 哈尔滨工程大学 | Flexible double-bell-shaped spray pipe with structure of flow charging pipeline coated by extensible material |
| CN113250854A (en) * | 2021-04-28 | 2021-08-13 | 中国航发沈阳发动机研究所 | Spray pipe structure |
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