CN106948970A - A kind of pinking tubular construction of rotation impulse detonation engine - Google Patents
A kind of pinking tubular construction of rotation impulse detonation engine Download PDFInfo
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- CN106948970A CN106948970A CN201710171566.4A CN201710171566A CN106948970A CN 106948970 A CN106948970 A CN 106948970A CN 201710171566 A CN201710171566 A CN 201710171566A CN 106948970 A CN106948970 A CN 106948970A
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- detonation
- tube
- detonation tube
- pinking
- air
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- 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
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- 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 rotation impulse detonation engine.Its Swastika type rotational structure make it that air-flow forms Secondary Flow radially and circumferentially in pipeline, and the mist of oil of oil spout pipe inspection is vertical with main flow direction, can accelerate atomization speed and improve air-fuel mixture degree.After air-fuel mixture, flammable mixed gas forms detonation via spark ignitor.Because the speed of combustion gas is much larger than the air velocity of detonation tube import, so its Secondary Flow radially and circumferentially can be strengthened, and the detonation tube spiral inner wall groove after spark plug is in addition to the turbulivity in increase pipe, further rotation occurs in the circumferential for the combustion gas flowed through, then the transition distance from detonation to pinking is shortened, the length of detonation tube is reduced, the reliability of the work of detonation tube is added.Additionally due to be that four detonation tubes work, the output area of power is bigger simultaneously, adjust more flexible.
Description
Technical field
The invention belongs to pulse-knocking engine field, and in particular to a kind of utilization detonation wave produces thrust output shaft work
The pinking tubular construction of rotation impulse detonation engine.
Background technology
Pulse-knocking engine is the novel power device that the new ideas based on detonating combustion grow up, with structure letter
Singly, size is small, the scope of application is wide, low cost, the advantages of thrust-weight ratio is up to 20.It can be answered based on above advantage pulse-knocking engine
For small aircraft, the power set of unmanned plane, it is also possible to make the power of spiral tip-driven rotor machine, future can also develop
For the Powerpush Unit of high-altitude vehicle.
The general principle of pulse-knocking engine output power is that the periodic detonation wave produced using detonation tube makes combustion
Gas is pressurized, and is heated and is pushed the speed, so as to provide power for engine.The work of pulse-knocking engine detonation tube in theory
The thrust of the bigger generation of frequency is bigger.In the case of theory, the weight of the length more puffer of detonation tube is lighter, and then
Thrust-weight ratio is bigger.Therefore the frequency for improving pulsed motor and the weight for mitigating detonation tube are the work of most of researchers
Direction.
It is usually coaxial in the same direction in the injection direction of traditional pinking air in tube and the injection direction of fuel oil.Although can make
The filling speed of gas mixture is accelerated, but the blending degree of oil gas is relatively low, is unfavorable for making full use of fuel very much, burning effect
Rate is low, and detonation wave is formed in shorter distance without enough energy, is unfavorable for shortening the length of detonation tube, mitigates pinking hair
The quality of motivation.In addition, igniting is also unstable, pinking power output may can not be formed in some circulation unstable.In addition,
Because traditional pulse-knocking engine detonation tube is cylindrical, it is installed in parallel when many pipes are used in parallel, certainly will
Many spaces can be wasted.Consider problem above, in practical engineering application, the mechanism design and layout of detonation tube just seem very
It is important.
The content of the invention
The technical problems to be solved by the invention are to propose that one kind can produce thrust, the rotary arteries and veins of the stable shaft work of output
Rush the detonation tube structural design scheme of detonation engine.This technology use from supply scheme, oil spout direction radially, air-fuel mixture
Degree high energy effectively shortens the length of detonation engine detonation tube, and improves the problem of fuel availability is low.Four detonation tubes
Arranged in space in Swastika types, produce thrust, export shaft work.The design and processing of the detonation engine structure are all very simple, in work
Journey has many-sided advantage in.
Technical scheme
It is an object of the invention to provide a kind of pinking tubular construction for the rotation impulse detonation engine for exporting shaft work.
Technical solution of the present invention is as follows：
To solve its technical problem, rotation impulse detonation engine of the present invention includes detonation tube, atomizer and spark plug.
Described detonation tube has 4, and be centrosymmetric distribution.In addition there is straight-run of pipe formula knot at the import of detonation tube
Structure.Atomizer is arranged at the inner tubal wall at airflow diversion, and detonation tube has helical groove on the inwall after spark plug.Separately
Outside, the oil spout direction of the spray bar of installation is vertical with airflow direction, fuel oil be ejected into air-flow and pinking inside pipe wall on.
The invention has the advantages that：
The detonation tube of rotation impulse detonation engine of the present invention, four detonation tube Tong cross Cai Yong Swastika type spatial distributions, this
Multitube parallel mode is planted, while can stablize output shaft work, the axial length of chopped pulse detonation engine alleviates hair
The weight of motivation.Further, since oil spout pipe inspection fuel oil is perpendicular to airflow direction and got 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, is conducive to the abundant burning of fuel oil,
Detonation wave is formed in relatively short distance.After air-fuel mixture is finished, flammable mixed gas forms detonation, most end form by spark ignitor
Into pinking, thrust output shaft work is produced.Due to the effect of rotary centrifugal force, many vortexs are had in combustion gas stream, advantageously
In the more stable shaft work of the formation output of pinking.Helical groove on pinking inside pipe wall can not only increase the turbulivity in pipe,
Further rotation occurs in the circumferential for the combustion gas that can also be flowed through, and then shortens the transition distance from detonation to pinking, increases
The reliability for having added detonation tube to work.
Brief description of the drawings
Fig. 1：The detonation tube structural representation of the rotation impulse detonation engine of the present invention
Fig. 2：The structural representation of detonation tube spiral inner wall groove
1- detonation tubes 2- spray bar 3- spark plug 4- power output shafts (air inlet pipe) in Fig. 1
1- helical grooves in Fig. 2
Embodiment
In conjunction with accompanying drawing, the invention will be further described：
With reference to Fig. 1 and Fig. 2, start the invention provides a kind of new rotation impulse pinking that can stablize output shaft work
The detonation tube structural slab of machine.Fig. 2 is the structural representation of the detonation tube spiral inner wall groove of the rotation impulse detonation engine.
Fig. 1 is rotary detonation tube structural representation, and the detonation tube of rotating air suction formula pulse-knocking engine is quick-fried including 1-
Shake pipe, 2- spray bars, 3- spark plugs and 4- power output shafts (air inlet pipe).Described 1- detonation tube Cheng Swastika type structure distributions, 1-
Detonation tube has 4, and length is identical depending on design, in addition also has straight-run of pipe structure to be used to supply at the import of 1- detonation tubes
Gas.2- spray bars are arranged in the straight pipe type structure of 1- detonation tubes front end, and 3- spark plugs are arranged on straight tube structure corner backward
On the pinking tube wall of 1/5th pinking length of tube.1- detonation tubes have helical groove on the inwall after spark plug.2- sprays
The oil spout direction of oil pipe is vertical with airflow direction, fuel oil be ejected into air-flow and pinking inside pipe wall on.
Described rotary pneumatic formula pulse-knocking engine, during its work, it is quick-fried that air flows into connection 1- via air inlet pipe equivalent
In four straight tubes for shaking pipe, reach after some intake velocities and air inflow, by the oil spout into four straight tubes respectively of 2- spray bars,
The effect of centrifugal force during due to rotation, the air-flow in 1- detonation tubes can produce Secondary Flow radially and circumferentially, form a lot
Vortex structure, and 2- spray bars oil spout direction is perpendicular to primary air direction and encounters on the inwall of detonation tube, fuel oil is crushed
Fogging degree is strengthened, and then substantially increases the mixability of oil gas.After air-fuel mixture is abundant, flammable mixed gas is by 3- spark plugs point
The combustion gas that helical groove after combustion, formation detonation, spark plug on 1- pinking inside pipe walls is flowed through occurs further in the circumferential
Rotation, then produces the transformation from detonation to pinking, ultimately forms detonation wave, produces thrust, finally (is entered by 4- power output shafts
Tracheae) output shaft work.Due to the rotational structure of Qi Swastika types, many vortexs are had in combustion gas stream, advantageously in the shape of pinking
Into and its stability.Additionally due to be that four detonation tubes work, the output area of power is bigger simultaneously, adjust more flexible, and
And significantly improve the reliability of detonation tube work.
Claims (3)
1. a kind of detonation tube of rotation impulse detonation engine, including detonation tube, atomizer and spark plug, it is characterised in that institute
The detonation tube stated is distributed in space Wei Swastika types, is Self-air supplying pulse-knocking engine, power output and air inlet pipe is in one
Empty straight tube.Respectively there is straight-run of pipe at its import, atomizer is arranged at 1/2nd length of straight pipe wall, and spark plug is installed quick-fried
At 1/5th length for shaking pipe.
2. the detonation tube of rotation impulse detonation engine according to claim 1, it is characterised in that the oil spout installed
The oil spout direction of mouth is vertical with the primary air direction in detonation tube.
3. the detonation tube of rotation impulse detonation engine according to claim 1, it is characterised in that detonation tube is in spark
Helical groove is equipped with inwall after plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710171566.4A CN106948970B (en) | 2017-03-22 | 2017-03-22 | A kind of detonation tube structure of rotation impulse detonation engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710171566.4A CN106948970B (en) | 2017-03-22 | 2017-03-22 | A kind of detonation tube structure of rotation impulse detonation engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106948970A true CN106948970A (en) | 2017-07-14 |
| CN106948970B CN106948970B (en) | 2018-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710171566.4A Active CN106948970B (en) | 2017-03-22 | 2017-03-22 | A kind of detonation tube structure of rotation impulse detonation engine |
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| Country | Link |
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| CN (1) | CN106948970B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107605600A (en) * | 2017-08-21 | 2018-01-19 | 南京理工大学 | A kind of rotation detonation engine for premixing spray |
| CN108131686A (en) * | 2017-12-14 | 2018-06-08 | 西北工业大学 | Tiny engine combustion chamber rotary jet type evaporation tube |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145409B (en) * | 2019-05-23 | 2021-11-23 | 江苏大学 | High-frequency igniter system of multi-tube pulse detonation engine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201610802U (en) * | 2010-02-04 | 2010-10-20 | 西北工业大学 | Knocking tube of a spiral type pulse knocking engine |
| CN102042121A (en) * | 2010-12-23 | 2011-05-04 | 西北工业大学 | Detonation tube structure of multi-tube pulse detonation engine |
| UA94560C2 (en) * | 2010-09-09 | 2011-05-10 | Институт Технической Механики Национальной Академии Наук Украины И Национального Космического Агентства Украины | Rocket propulsion system on paste-like propellant with detonation jet |
| CN202263681U (en) * | 2011-09-13 | 2012-06-06 | 浙江理工大学 | Water sprayer |
| CN203498454U (en) * | 2013-09-17 | 2014-03-26 | 北京南山航空材料研究院有限责任公司 | Novel high-efficiency aluminum alloy in-furnace solvent ejection refining tube nozzle |
-
2017
- 2017-03-22 CN CN201710171566.4A patent/CN106948970B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201610802U (en) * | 2010-02-04 | 2010-10-20 | 西北工业大学 | Knocking tube of a spiral type pulse knocking engine |
| UA94560C2 (en) * | 2010-09-09 | 2011-05-10 | Институт Технической Механики Национальной Академии Наук Украины И Национального Космического Агентства Украины | Rocket propulsion system on paste-like propellant with detonation jet |
| CN102042121A (en) * | 2010-12-23 | 2011-05-04 | 西北工业大学 | Detonation tube structure of multi-tube pulse detonation engine |
| CN202263681U (en) * | 2011-09-13 | 2012-06-06 | 浙江理工大学 | Water sprayer |
| CN203498454U (en) * | 2013-09-17 | 2014-03-26 | 北京南山航空材料研究院有限责任公司 | Novel high-efficiency aluminum alloy in-furnace solvent ejection refining tube nozzle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107605600A (en) * | 2017-08-21 | 2018-01-19 | 南京理工大学 | A kind of rotation detonation engine for premixing spray |
| CN107605600B (en) * | 2017-08-21 | 2019-04-12 | 南京理工大学 | A kind of rotation detonation engine premixing spray |
| CN108131686A (en) * | 2017-12-14 | 2018-06-08 | 西北工业大学 | Tiny engine combustion chamber rotary jet type evaporation tube |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106948970B (en) | 2018-10-02 |
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Effective date of registration: 20230529 Address after: No. 4302, Block B, Gongda Aoxiang Creative Space, 4th Floor, Xigong University Innovation Building, No. 127 Youyi West Road, Beilin District, Xi'an City, Shaanxi Province, 710072 Patentee after: Xi'an Feidong Technology Co.,Ltd. Address before: Beilin District Shaanxi province Xi'an City friendship road 710072 No. 127 Patentee before: Northwestern Polytechnical University |
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