CN107013369B - A kind of open and close type rotation unidirectional priming device of detonation engine - Google Patents
A kind of open and close type rotation unidirectional priming device of detonation engine Download PDFInfo
- Publication number
- CN107013369B CN107013369B CN201710288247.1A CN201710288247A CN107013369B CN 107013369 B CN107013369 B CN 107013369B CN 201710288247 A CN201710288247 A CN 201710288247A CN 107013369 B CN107013369 B CN 107013369B
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- Prior art keywords
- detonation
- valve
- combustion chamber
- open
- detonation engine
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Classifications
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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
- F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
- F02K9/80—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof characterised by thrust or thrust vector control
Abstract
The present invention provides a kind of open and close types to rotate the unidirectional priming device of detonation engine, including valve, pre-explosion pipe and Detonation Tube switching device, detonation engine toroidal combustion chamber is equipped with the opening for being connected to pre-explosion pipe, one end of the pre-explosion pipe is connected to detonation engine toroidal combustion chamber, Detonation Tube switching device is installed on the other end of pre-explosion pipe, the valve is mounted on opening, one end of valve and detonation engine toroidal combustion chamber are hinged, and valve is only capable of being rotated into detonation engine toroidal combustion chamber to open opening.The present invention uses open and close type valve, and detonation wave washes valve open and enters engine annular combustion chamber after pre-explosion pipe igniting, and valve closing door is rushed in propagation after a week, no longer influences the combustion case of combustion chamber later, all components designs of the present invention rationally, high reliablity.
Description
Technical field
The present invention relates to rotation detonation engine technical field more particularly to a kind of open and close type rotation detonation engine are unidirectional
Priming device.
Background technique
As aerospace cause develops rapidly, need that a kind of, speed more high-efficient than conventional turbo engine is fast, pushes away
Again than high, high reliablity propulsion system, thus researcher proposes rotation detonation engine.Rotation detonation engine passes through
Single, which is lighted a fire, to ignite the premixed gas in annular firing room and forms detonation wave, and fuel injects combustion chamber from closed end continuous high speed
Interior, it can be achieved that detonation wave rotates continuously in a circumferential, combustion product is sprayed via axial expansion from another open end, and then is generated and pushed away
Power.
However, problem most basic present in rotation detonation engine is how to form list in toroidal combustion chamber at present
It is propagated to stable detonation, it is known that common sparking mode has wall surface plug ignition and pre-explosion pipe tangentially to light a fire, but more than
The mode of two kinds of routines detonate the problem of success rate is lower, and the time for forming steady detonation is longer, most critical be detonation initiation it
Two opposite detonation waves in the direction of propagation can be formed in toroidal combustion chamber afterwards, lead to loss of ignition after final collision.In order to anti-
Two-way detonation wave is generated after stop fire, Nicholls and Cullen use Voitsekhovskii et al. in an experiment and inquired into
The mode of increase special diaphragm apparatus prevent detonation wave direction both direction from propagating, this method, which substantially increases, detonates successfully
Rate, but restarting for engine is limited, the detonation of engine is not solved the problems, such as fundamentally.Liu Shijie et al. is right respectively
Pre-explosion pipe is installed on engine and is analyzed by rotating-spray fuel and two kinds of detonation modes of timing ignition, finds two kinds
All there is certain restrictions in detonation mode, need to further be studied.
Although researcher proposes a variety of rotation detonation engine detonation modes, certain success is also obtained, rises and bursts into
Power and repetitive rate are lower.Therefore, a kind of unidirectional priming device that can be improved its ignition success rate is designed to rotation detonation hair
The development of motivation has certain realistic meaning.
Summary of the invention
In response to the deficiencies in the existing technology, the present invention provides a kind of unidirectional priming devices for preventing detonation wave from entering
Occurs the phenomenon that two-way propagation in circular passage, to significantly improve detonation success rate.
The present invention achieves the above technical objects by the following technical means.
A kind of open and close type rotation unidirectional priming device of detonation engine, including valve, pre-explosion pipe and Detonation Tube switching device,
Detonation engine toroidal combustion chamber is equipped with the opening for being connected to pre-explosion pipe, one end of the pre-explosion pipe and detonation engine
Toroidal combustion chamber is tangentially connected to, and Detonation Tube switching device is installed on the other end of pre-explosion pipe, and the valve is mounted on opening
Place, one end of valve and detonation engine toroidal combustion chamber are hinged, and valve is only capable of rotating into detonation engine toroidal combustion chamber
To open opening.
Preferably, the valve is connected by straight pin and the groove of opening.
Preferably, one end of the Detonation Tube switching device is welded on the other end of pre-explosion pipe, Detonation Tube switching device
The other end be connected through a screw thread with ignitron.
Preferably, the opening of one end of the pre-explosion pipe and detonation engine toroidal combustion chamber is welded.
Beneficial effects of the present invention:
1) present invention use open and close type valve, pre-explosion pipe igniting after detonation wave wash open valve enter engine annular burning
Valve closing door is rushed in room, propagation after a week, no longer influences the combustion case of combustion chamber later:
2) everything of the present invention is all repeatable, and the re-detonating unidirectionally detonated there is no previous rotation detonation engine is asked
Topic；
3) all components of the invention are all purely mechanic components, with high reliability when work.
Detailed description of the invention
Schematic diagram when Fig. 1 is the valve closure of the open and close type of the present invention rotation unidirectional priming device of detonation engine.
Schematic diagram when Fig. 2 is the valve opening of the open and close type of the present invention rotation unidirectional priming device of detonation engine.
Fig. 3 is the schematic diagram of valve of the present invention.
Fig. 4 is that valve of the present invention is mounted on the schematic diagram on detonation engine toroidal combustion chamber.
Fig. 5 is the opening schematic diagram on detonation engine toroidal combustion chamber of the present invention.
Fig. 6 is that open and close type of the present invention rotates the unidirectional priming device overall schematic of detonation engine.
Wherein:
1. valve；2. pre-explosion pipe；3. Detonation Tube switching device；4. oxidant opening；5. teasehole；6. opening.
Specific embodiment
Present invention will be further explained with reference to the attached drawings and specific examples, but protection scope of the present invention is simultaneously
It is without being limited thereto.
As depicted in figs. 1 and 2, a kind of open and close type of the present invention rotates the unidirectional priming device of detonation engine, including valve
Door 1, pre-explosion pipe 2 and Detonation Tube switching device 3, as shown in figure 5, detonation engine toroidal combustion chamber is equipped with and is used for and pre-explosion pipe
One end of the opening 6 of 2 connections, pre-explosion pipe 2 is welded at opening 6 with toroidal combustion chamber, so that pre-explosion pipe 2 and toroidal combustion chamber
Tangentially be connected to, one end of the other end of pre-explosion pipe 2 and Detonation Tube switching device 3 is welded, Detonation Tube switching device 3 it is another
End is connected through a screw thread with ignitron.As shown in figure 3, valve 1 is equipped with straight pin, as shown in figure 4, valve 1 passes through straight pin
It is connect with the groove of opening 6, as shown in Figure 1, valve 1 can cut off pre-explosion pipe 2 and detonation engine toroidal combustion chamber when being closed
Connection, and valve 1 can only be rotated into detonation engine annular firing room to open opening 6.
The working principle of a kind of open and close type rotation unidirectional priming device of detonation engine of the present invention are as follows: when detonation is started
When machine is inactive, valve 1 is closed, and state as shown in Figure 1 is in, then, as shown in fig. 6, respectively by oxidant opening 4 and teasehole
5 inject oxidant and fuel into detonation engine annular firing room, before igniting, are filled with by ignitron and detonation switching device 3
Well-mixed combustion gas；
When detonation engine starting, ignitron igniting forms detonation wave in pre-explosion pipe 2 therewith.Detonation wave pressure is very
Height, when detonation wave travels at valve 1, pushed at high pressure valve 1 is opened, and pre-explosion pipe 2 is made to pass through opening 6 and valve 1 and detonation
Engine annular combustion chamber forms half-duplex channel, as shown in Fig. 2, blocking due to valve 1, detonation wave can only be by detonation engine
The tangential direction of toroidal combustion chamber is propagated, it is thus achieved that the unidirectional detonation of detonation engine.
Engine detonates successfully, and detonation wave encounters valve 1 in toroidal combustion chamber propagation again after a week and pushes its closing.
Since pressure is low in pre-explosion pipe 2, and since the propagation of detonation wave and the burning of gas are in high pressure conditions in toroidal combustion chamber, valve
Door 1 will not automatically open the burning for influencing toroidal combustion chamber after closing.
Finally, injecting oxidant and fuel by oxidant opening 4 and 5 high frequency of teasehole respectively, the product after having burnt is logical
The gas vent discharge for crossing combustion chamber lower end, realizes continuously running for detonation engine.
The embodiment is a preferred embodiment of the present invention, but present invention is not limited to the embodiments described above, not
In the case where substantive content of the invention, any conspicuous improvement that those skilled in the art can make, replacement
Or modification all belongs to the scope of protection of the present invention.
Claims (4)
1. a kind of open and close type rotates the unidirectional priming device of detonation engine, which is characterized in that including valve (1), pre-explosion pipe (2) and
Detonation Tube switching device (3), detonation engine toroidal combustion chamber is equipped with the opening (6) for being connected to pre-explosion pipe (2), described
One end of pre-explosion pipe (2) is tangentially connected to detonation engine toroidal combustion chamber, installs detonation on the other end of pre-explosion pipe (2)
Pipe switching device (3), the valve (1) are mounted at opening (6), one end of valve (1) and detonation engine toroidal combustion chamber
Hingedly, valve (1) is only capable of being rotated into detonation engine toroidal combustion chamber to open opening.
2. open and close type according to claim 1 rotates the unidirectional priming device of detonation engine, which is characterized in that the valve
(1) it is connect by straight pin with the groove of opening (6).
3. open and close type according to claim 1 rotates the unidirectional priming device of detonation engine, which is characterized in that the detonation
One end of pipe switching device (3) is welded on the other end of pre-explosion pipe (2), the other end of Detonation Tube switching device (3) and igniting
Pipe is connected through a screw thread.
4. open and close type according to claim 1 rotates the unidirectional priming device of detonation engine, which is characterized in that described pre- quick-fried
It manages and is welded at the one end of (2) and the opening (6) of detonation engine toroidal combustion chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710288247.1A CN107013369B (en) | 2017-04-27 | 2017-04-27 | A kind of open and close type rotation unidirectional priming device of detonation engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710288247.1A CN107013369B (en) | 2017-04-27 | 2017-04-27 | A kind of open and close type rotation unidirectional priming device of detonation engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107013369A CN107013369A (en) | 2017-08-04 |
| CN107013369B true CN107013369B (en) | 2019-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710288247.1A Expired - Fee Related CN107013369B (en) | 2017-04-27 | 2017-04-27 | A kind of open and close type rotation unidirectional priming device of detonation engine |
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| Country | Link |
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| CN (1) | CN107013369B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108256275B (en) * | 2018-03-12 | 2021-02-23 | 北京理工大学 | Numerical simulation ignition detonation method for rotary detonation engine |
| CN109667683B (en) * | 2018-12-26 | 2020-07-17 | 中国人民解放军战略支援部队航天工程大学 | Variable thrust continuous detonation rocket-based engine and aircraft |
| CN109404165B (en) * | 2018-12-26 | 2019-11-19 | 中国人民解放军战略支援部队航天工程大学 | The continuous pinking rocket base engine and aircraft of thruster vector control |
| CN109653876B (en) * | 2019-01-14 | 2021-05-11 | 南京航空航天大学 | Short-distance compact ignition initiation device for continuous rotation detonation engine |
| CN111594341B (en) * | 2020-05-07 | 2022-07-22 | 西北工业大学 | One-way priming device of rotary detonation engine |
| CN111894762B (en) * | 2020-07-08 | 2021-09-21 | 南京理工大学 | Transient detonation pulse engine and radial multi-pulse thrust vector device |
| CN113756990B (en) * | 2021-06-26 | 2022-08-05 | 中国人民解放军空军工程大学 | Bypass air-entraining low-energy ignition return type detonating device |
| CN113864824B (en) * | 2021-11-02 | 2023-07-25 | 西安热工研究院有限公司 | Pre-explosion tube applicable to rotary detonation combustion chamber with variable length |
| CN117846820B (en) * | 2024-03-05 | 2024-05-07 | 北京大学 | Continuous detonation engine pre-detonation tube ignition control system and control method thereof |
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2017
- 2017-04-27 CN CN201710288247.1A patent/CN107013369B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN107013369A (en) | 2017-08-04 |
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Granted publication date: 20190402 Termination date: 20200427 |