CN106812627A - A kind of pinking tubular construction of rotating air suction formula pulse-knocking engine - Google Patents
A kind of pinking tubular construction of rotating air suction formula pulse-knocking engine Download PDFInfo
- Publication number
- CN106812627A CN106812627A CN201710163527.XA CN201710163527A CN106812627A CN 106812627 A CN106812627 A CN 106812627A CN 201710163527 A CN201710163527 A CN 201710163527A CN 106812627 A CN106812627 A CN 106812627A
- Authority
- CN
- China
- Prior art keywords
- pinking
- detonation tube
- detonation
- tube
- air suction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010276 construction Methods 0.000 title claims abstract description 12
- 238000005474 detonation Methods 0.000 claims abstract description 74
- 239000000295 fuel oil Substances 0.000 claims abstract description 11
- 239000003921 oil Substances 0.000 claims abstract description 11
- 239000000446 fuel Substances 0.000 claims abstract description 9
- 239000007921 spray Substances 0.000 claims description 15
- 230000008676 import Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 10
- 239000000567 combustion gas Substances 0.000 abstract description 5
- 230000015572 biosynthetic process Effects 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 4
- 238000000889 atomisation Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000004323 axial length Effects 0.000 abstract description 2
- 238000007689 inspection Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K7/00—Plants in which the working fluid is used in a jet only, i.e. the plants not having a turbine or other engine driving a compressor or a ducted fan; Control thereof
- F02K7/02—Plants in which the working fluid is used in a jet only, i.e. the plants not having a turbine or other engine driving a compressor or a ducted fan; Control thereof the jet being intermittent, i.e. pulse-jet
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The invention provides a kind of pinking tubular construction of rotating air suction formula pulse-knocking engine, it passes through to use rotary structure, greatly reduces the axial distance of detonation tube, shortens the axial length of pulse-knocking engine.Because oil spout pipe inspection fuel oil is perpendicular to airflow direction and gets on the inwall of detonation tube, so this is advantageous for the broken atomization of fuel oil, so as to substantially increase the mixability of oil gas, be conducive to the abundant burning of fuel oil.After air-fuel mixture is finished, flammable mixed gas forms detonation by spark ignitor, ultimately forms pinking, produces rotary power.Due to the effect of rotary centrifugal force, many vortexs are had in combustion gas stream, advantageously the formation in pinking and stability.
Description
Technical field
The invention belongs to pulse-knocking engine field, and in particular to a kind of utilization detonation wave produces the rotating air suction of thrust
The pinking tubular construction of formula pulse-knocking engine.
Background technology
Pulse-knocking engine is that a kind of high temperature produced using intermittent detonation wave, high-pressure gas produce the new of thrust
Concept propulsion plant.With simple structure, size is small, the scope of application is wide, low cost and other advantages, and thrust-weight ratio is up to 20.Pulse is quick-fried
Shake engine is the power that can be used as small aircraft, unmanned plane, it is also possible to make the power of spiral tip-driven rotor machine, future
Also can be used as military-civil aircraft and the Powerpush Unit of high-altitude vehicle.
Traditional pulse-knocking engine detonation tube is substantially a straight pipe, although in the diverse location pipe of detonation tube
Footpath can be varied from, such as jet pipe structure, but central axis is constant.This has resulted in detonation tube in the axial direction
Can be very long.Detonation tube is more long, and the filling time of explosive mixed gas will be more long, and working frequency will be affected.Can also make in addition
The length of aircraft, increased weight.Detonation tube is more long, the more obvious protrusion of its vibration problem.
In traditional detonation tube, the injection direction of air and the injection direction of fuel oil be usually it is coaxial in the same direction, so
Can accelerate the filling speed of gas mixture, but the blending degree of oil gas is relatively low, and fuel fails to make full use of, without enough
Energy form detonation wave in shorter distance.And less stable of lighting a fire, it is difficult to form pinking in each circulation.
Traditional pulse-knocking engine detonation tube is cylindrical in addition, much room can be wasted when used in parallel, and make multitube
The diameter of engine becomes very big, occurs some problems in practice.Therefore, the structure layout design to detonation tube just seems very
It is important.
The content of the invention
The technical problems to be solved by the invention are to propose that a kind of rotating air suction formula pulse that can produce rotation pinking is quick-fried
Shake the detonation tube structural design scheme of engine.This technology can effectively shorten quick-fried using rotation pinking tubular construction, the detonation tube
Shake the length of combustion knock pipe and reduce detonation tube arrangement space, produce rotation pinking power, and improve fuel availability
Low problem.The design and processing of rotary structure are all very simple, have many-sided advantage in engineering.
Technical scheme
It is an object of the invention to provide a kind of pinking tubular construction of rotating air suction formula pulse-knocking engine.
Technical solution of the present invention is as follows：
To solve its technical problem, the detonation tube of rotating air suction formula pulse-knocking engine of the present invention includes detonation tube, spray
Oil pipe and spark plug.Described detonation tube is rotary circumferential structure, and detonation tube has 2, and length is a quarter girth, in being in
The symmetrical state of the heart, in addition also has straight-run of pipe formula structure at the import of detonation tube.Spray bar two ends connect peace respectively
On the straight pipe type detonation tube inner side tube wall of detonation tube front end, spark plug is arranged on away from atomizer a quarter detonation tube backward
On the rotary tube wall of detonation tube of all strong points, the rotary tube wall of detonation tube has helical groove on the inwall after spark plug.
In addition, install spray bar oil spout direction it is vertical with airflow direction, fuel oil be ejected into air-flow and pinking inside pipe wall on.
As a preferred embodiment of the present invention, multiple rotary detonation tubes can be in axial direction mounted side by side, each
Flame is transmitted by flame tube interconnector between detonation tube, it is ensured that the synchronism of each detonation tube, and the entirely stabilization of power set
Property.Being respectively mounted spray bar for each detonation tube carries out fuel feeding.
The invention has the advantages that：
The detonation tube of rotating air suction formula pulse-knocking engine of the present invention, it passes through to use rotary structure, greatly reduces
The axial distance of detonation tube, shortens the axial length of pulse-knocking engine.Because oil spout pipe inspection fuel oil is perpendicular to
Airflow direction and get on the inwall of detonation tube, so this is advantageous for the broken atomization of fuel oil, so as to substantially increase oil
The mixability of gas, is conducive to the abundant burning of fuel oil.After air-fuel mixture is finished, flammable mixed gas is by spark ignitor, shape
Into detonation, pinking is ultimately formed, produce rotary power.Due to the effect of rotary centrifugal force, many vortexs are had in combustion gas stream,
The advantageously formation in pinking and stability.Helical groove on pinking inside pipe wall can not only increase the turbulivity in pipe,
There is further rotation in the combustion gas that can also be flowed through, then shorten the transition distance from detonation to pinking in the circumferential, increase
The reliability of detonation tube is added.
Brief description of the drawings
Fig. 1：Detonation tube structural representation of the invention
Fig. 2：Rotating air suction formula pulse-knocking engine operating diagram of the invention
Fig. 3：A preferred embodiment of the present invention detonation tube structural representation
In figure：1st, detonation tube, 2, spray bar, 3, spark plug, 4, power output shaft, 5, flame tube interconnector
Specific embodiment
In conjunction with accompanying drawing, the invention will be further described：
With reference to Fig. 1 and Fig. 2, the present invention proposes that a kind of rotating air suction formula pulse-knocking that can produce rotation pinking power is sent out
The pinking tubular construction of motivation.Fig. 1 is rotary detonation tube structural representation, the detonation tube of rotating air suction formula pulse-knocking engine
Including detonation tube (1), spray bar (2) and spark plug (3).Described detonation tube (1) is rotary circumferential structure, detonation tube (1)
There are 2, length is a quarter girth, and be centrosymmetric distribution, in addition also has one section at the import of detonation tube (1)
Straight pipe type structure.Spray bar (2) two ends connect on the straight pipe type detonation tube inner side tube wall of detonation tube (1) front end respectively,
Spark plug (3) installed in away from atomizer (2) backward a quarter detonation tube week strong point the rotary tube wall of detonation tube on, detonation tube
Rotary tube wall have helical groove on inwall after spark plug (3).The oil spout direction of the spray bar (2) of installation and air-flow
Direction is vertical, fuel oil is ejected into air-flow and detonation tube (1) inwall on.
Fig. 2 is rotating air suction formula pulse-knocking engine operating diagram.Described rotating air suction formula pulse-knocking starts
Machine, during its work, has just started to apply it certain power, and after reaching certain rotating speed, the pressure at detonation tube (1) import is small
In atmospheric pressure, air can enter in detonation tube (1), so as to form natural aspiration.As intake velocity and air inflow are increasing,
Now by spray bar (2) respectively to two interior fuel feeding of centrosymmetric detonation tube (1), due to the effect of centrifugal force, in pinking
Air-flow in pipe (1) can produce the oil spout direction of Secondary Flow radially and circumferentially, many vortexs of formation, and spray bar (2)
Perpendicular to airflow direction and reach on the inwall of detonation tube (1), make the broken atomization of fuel oil, substantially increase the mixing journey of oil gas
Degree.After air-fuel mixture is abundant, flammable mixed gas is lighted by spark plug (3), forms detonation, the helical groove on detonation tube (1) inwall
There is further rotation in the combustion gas for flowing through, then produce the transformation from detonation to pinking in the circumferential, ultimately form pinking
Ripple, produces rotary power, is finally exported by power output shaft (4).Due to its revolving structure, had in combustion gas stream a lot
Vortex, advantageously the formation in pinking and its stability, improve the reliability of detonation tube.
Fig. 3 is a kind of structural representation of preferred scheme detonation tube, and multiple rotary pinkings are in axial direction mounted side by side
Pipe (1), transmits flame, it is ensured that the synchronism of each detonation tube (1) between each detonation tube (1) by flame tube interconnector (5), and
The stability of whole power set.Each detonation tube (1) is respectively mounted spray bar (2) and carries out fuel feeding.
Claims (5)
1. a kind of pinking tubular construction of rotating air suction formula pulse-knocking engine, including detonation tube, spray bar and spark plug, it is special
Property is：Described detonation tube (1) is rotary circumferential structure, also has straight-run of pipe formula structure, spray bar (2) two at its import
Connection is arranged on the tube wall of the straight pipe type detonation tube of detonation tube (1) front end inner side respectively at end, and spark plug (3) is installed in away from atomizer
(2) backward on the rotary tube wall of detonation tube of a quarter detonation tube (1) week strong point.
2. the pinking tubular construction of rotating air suction formula pulse-knocking engine according to claim 1, it is characterised in that：Pinking
Pipe (1) has 2, and length is a quarter girth, and be centrosymmetric distribution.
3. the pinking tubular construction of rotating air suction formula pulse-knocking engine according to claim 1, it is characterised in that：Install
Spray bar (2) oil spout direction it is vertical with airflow direction, fuel oil is ejected into air-flow and detonation tube (1) inwall on.
4. the pinking tubular construction of rotating air suction formula pulse-knocking engine according to claim 1, it is characterised in that：Pinking
Manage the rotary tube wall of (1) has helical groove on the inwall after spark plug (3).
5. the pinking tubular construction of the rotating air suction formula pulse-knocking engine according to claim 1,2,3 or 4, its feature exists
In：Multiple rotary detonation tubes (1) can be in axial direction mounted side by side, between each detonation tube (1) by flame tube interconnector (5) come
Transmission flame, each detonation tube (1) is respectively mounted spray bar (2) and carries out fuel feeding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710163527.XA CN106812627B (en) | 2017-03-20 | 2017-03-20 | A kind of detonation tube structure of rotating air suction formula pulse-knocking engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710163527.XA CN106812627B (en) | 2017-03-20 | 2017-03-20 | A kind of detonation tube structure of rotating air suction formula pulse-knocking engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106812627A true CN106812627A (en) | 2017-06-09 |
| CN106812627B CN106812627B (en) | 2018-09-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710163527.XA Expired - Fee Related CN106812627B (en) | 2017-03-20 | 2017-03-20 | A kind of detonation tube structure of rotating air suction formula pulse-knocking engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106812627B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109184949A (en) * | 2018-09-25 | 2019-01-11 | 西北工业大学 | A kind of detonation tube structure of the spiral pulse-knocking engine of indirect igniting |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6637187B2 (en) * | 2000-09-08 | 2003-10-28 | Techland Research, Inc. | Rotary inlet flow controller for pulse detonation combustion engines |
| CN201610802U (en) * | 2010-02-04 | 2010-10-20 | 西北工业大学 | Knocking tube of a spiral type pulse knocking engine |
| CN103075271A (en) * | 2013-01-21 | 2013-05-01 | 西北工业大学 | High-frequency conical spiral tube type pulse detonation engine |
| CN203730136U (en) * | 2014-02-27 | 2014-07-23 | 王庆 | Turbopulse detonation engine |
-
2017
- 2017-03-20 CN CN201710163527.XA patent/CN106812627B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6637187B2 (en) * | 2000-09-08 | 2003-10-28 | Techland Research, Inc. | Rotary inlet flow controller for pulse detonation combustion engines |
| CN201610802U (en) * | 2010-02-04 | 2010-10-20 | 西北工业大学 | Knocking tube of a spiral type pulse knocking engine |
| CN103075271A (en) * | 2013-01-21 | 2013-05-01 | 西北工业大学 | High-frequency conical spiral tube type pulse detonation engine |
| CN203730136U (en) * | 2014-02-27 | 2014-07-23 | 王庆 | Turbopulse detonation engine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109184949A (en) * | 2018-09-25 | 2019-01-11 | 西北工业大学 | A kind of detonation tube structure of the spiral pulse-knocking engine of indirect igniting |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106812627B (en) | 2018-09-18 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180918 |
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