CN103557094A - High-concentration hydrogen peroxide catalysis bed structure used for ground test of solid-liquid hybrid rocket motor - Google Patents
High-concentration hydrogen peroxide catalysis bed structure used for ground test of solid-liquid hybrid rocket motor Download PDFInfo
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- CN103557094A CN103557094A CN201310487700.3A CN201310487700A CN103557094A CN 103557094 A CN103557094 A CN 103557094A CN 201310487700 A CN201310487700 A CN 201310487700A CN 103557094 A CN103557094 A CN 103557094A
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- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 title claims abstract description 100
- 239000007788 liquid Substances 0.000 title claims abstract description 32
- 238000006555 catalytic reaction Methods 0.000 title abstract description 4
- 230000003197 catalytic effect Effects 0.000 claims abstract description 61
- 238000002485 combustion reaction Methods 0.000 claims abstract description 39
- 239000007789 gas Substances 0.000 claims abstract description 36
- 239000003054 catalyst Substances 0.000 claims abstract description 18
- 239000007800 oxidant agent Substances 0.000 claims abstract description 11
- 230000001590 oxidative effect Effects 0.000 claims abstract description 10
- 239000007921 spray Substances 0.000 claims description 71
- 210000003625 skull Anatomy 0.000 claims description 19
- 238000002474 experimental method Methods 0.000 claims description 17
- 230000001105 regulatory effect Effects 0.000 claims description 16
- 239000000843 powder Substances 0.000 claims description 12
- 238000000354 decomposition reaction Methods 0.000 claims description 9
- 239000000446 fuel Substances 0.000 claims description 9
- 238000010276 construction Methods 0.000 claims description 6
- 239000008187 granular material Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims description 2
- 238000000197 pyrolysis Methods 0.000 claims description 2
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 239000002245 particle Substances 0.000 abstract description 2
- 238000005507 spraying Methods 0.000 abstract description 2
- 238000002347 injection Methods 0.000 abstract 5
- 239000007924 injection Substances 0.000 abstract 5
- 239000000047 product Substances 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000011068 loading method Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 235000015842 Hesperis Nutrition 0.000 description 1
- 235000012633 Iberis amara Nutrition 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 208000018459 dissociative disease Diseases 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
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Abstract
本发明公开了一种用于地面试验固液混合火箭发动机的高浓度过氧化氢催化床结构，其中，发动机头盖上设有氧化剂入口，发动机头盖固定连接催化床外壳体的上端，催化床外壳体的下端固定连接发动机前燃室；催化床外壳体内设有腔体，腔体内设有催化剂，催化剂的上端和下端分别设有催化剂上挡网和催化剂下挡网，催化剂上挡网与发动机头盖之间设置液体喷注面板，气体喷注面板固定在催化床外壳体下端，气体喷注面板与催化剂下挡网之间设有调节环；发动机燃烧室壳体固定连接发动机前燃室。本发明考虑了催化剂不同装载量下的固定形式，催化剂颗粒催化过程中可能的受热膨胀，同时能避免催化剂堵住喷注孔或经喷注孔喷出。
The invention discloses a high-concentration hydrogen peroxide catalytic bed structure for ground test solid-liquid mixed rocket engine, wherein, the engine head cover is provided with an oxidant inlet, the engine head cover is fixedly connected to the upper end of the outer casing of the catalytic bed, and the catalytic bed The lower end of the outer casing is fixedly connected to the front combustion chamber of the engine; a cavity is arranged in the outer casing of the catalytic bed, and a catalyst is arranged in the cavity, and the upper end and the lower end of the catalyst are respectively provided with a catalyst upper baffle and a catalyst lower baffle, and the catalyst upper baffle is connected with the engine. A liquid injection panel is arranged between the head covers, the gas injection panel is fixed at the lower end of the catalytic bed shell, and an adjustment ring is provided between the gas injection panel and the catalyst lower screen; the engine combustion chamber housing is fixedly connected to the front combustion chamber of the engine. The invention takes into account the fixed form of the catalyst under different loads, the possible thermal expansion of the catalyst particles during the catalysis process, and at the same time prevents the catalyst from blocking the injection hole or spraying out through the injection hole.
Description
Technical field
The present invention relates to a kind of high-strength hydrogen peroxide catalytic bed structure that can be used for ground experiment hybrid rocket engine, belong to solid-liquid rocket field.
Background technique
High-strength hydrogen peroxide (referring generally to the hydrogen peroxide of mass fraction >85%) because its density is high, toxicity is low, environmentally friendly, be oxygenant conventional in hybrid rocket engine.Conventionally, hydrogen peroxide can be decomposed into high-temperature water vapor and oxygen by the catalytic bed of engine interior, fire fuel powder column in firing chamber, and high-temperature reaction product provides thrust through jet pipe ejection.Wherein, the decomposition reaction of hydrogen peroxide can be expressed as
2H
2O
2(l)→2H
2O(g)+O
2(g)+Heat
Conventional hydrogen peroxide catalyzed bed can fixedly be formed by pellet type catalyst or the netted catalytic structure encapsulation of multilayer, also can sinter integral honeycomb shape structure into, as document S.Bonifacio, G.Festa, and A.R.Sorge, " Novel Structured Catalysts for Hydrogen Peroxide Decomposition in Monopropellant and Hybrid Rockets, " Journal of Propulsion and Power, pp.1-8, described in 2013.The catalyzer of variety classes, different preparation processs is different to the catalytic efficiency of hydrogen peroxide dissociation reaction.This catalytic efficiency can be weighed by catalytic activity, i.e. the reactant quality (g/cm of the catalyzer energy catalysis of per unit volume in the unit time
3s).The design work state different to hybrid rocket engine, required hydrogen peroxide mass flow rate (g/s) is different.Therefore, in the ground experiment of hybrid rocket engine, often need to regulate the useful load of catalyzer, to determine the amount of the hydrogen peroxide of particular flow rate being decomposed completely to corresponding catalyzer.
More existing hydrogen peroxide hybrid rocket schemes, as described in patent US006991772Bl, do not relate to the structure of catalytic bed; Some documents, as patent US20110167793Al, have proposed the design of solid-liquid rocket, but do not consider detailed structure and the installation form of catalytic bed, and the amount of catalyzer cannot regulate.Meanwhile, the structure in patent US20110167793Al is not considered the dimensional fits problem of gas spray orifice after liquid spray orifice before catalyst granules and catalytic bed, catalytic bed.When catalyst granules diameter is less than the spray orifice diameter of design, need to take measures to prevent that catalyst granules from spraying through spray orifice.In addition, even if catalyst granules diameter is greater than the spray orifice diameter of design, also need to prevent that catalyzer from blocking spray orifice, affect the whole spray form of motor oxygenant.
Summary of the invention
To the object of the invention is in order addressing the above problem, to have proposed a kind of for ground experiment hybrid rocket engine, high-strength hydrogen peroxide catalytic bed structure that loaded catalyst is adjustable.
A high-strength hydrogen peroxide catalytic bed structure for ground experiment hybrid rocket engine, comprises on combustion chamber before motor skull, liquid spray panel, catalytic bed frame, catalyzer, regulating ring, gas spray panel, motor, motor combustion chamber case, motor fuel powder column, catalyzer backstop under backstop, catalyzer;
Motor head covers and is provided with oxidant inlet, between oxidant inlet and liquid spray panel, forms head cavity, and motor skull is fixedly connected with the upper end of catalytic bed frame, and chamber is fired before being fixedly connected with motor in the lower end of catalytic bed frame; In catalytic bed frame, be provided with cavity, in cavity, be provided with catalyzer, the top and bottom of catalyzer are respectively equipped with on catalyzer backstop under backstop and catalyzer, liquid spray panel is set between backstop and motor skull on catalyzer, gas spray panel is fixed on catalytic bed frame lower end, under gas spray panel and catalyzer, between backstop, is provided with regulating ring; Before motor, combustion chamber is provided with front combustion chamber pressure tap; Motor combustion chamber case fires chamber before being fixedly connected with motor.
The invention has the advantages that:
(1) can be used for the high-strength hydrogen peroxide catalysis of ground experiment hybrid rocket engine, catalytic bed structure has been considered possible expanded by heating in catalyst granules catalytic process, can avoid catalyzer block spray orifice or spray through spray orifice simultaneously.
(2) can be according to the loadings of the active free adjusting catalyzer of hydrogen peroxide flow and the catalyzer that adopts.
(3) on liquid spray panel, the distribution of liquid spray orifice and aperture can be designed according to hydrogen peroxide flow, make hydrogen peroxide spray into equably catalytic bed with suitable speed.
(4) on gas spray panel, the distribution of gas spray orifice and aperture can, according to the geometrical construction flexible design of hydrogen peroxide flow and fuel powder column, make the spray position of the high-temperature decomposition product of hydrogen peroxide catalyzed rear generation match with the geometrical construction of powder column.
Accompanying drawing explanation
Fig. 1 is the sectional view of assembly structure of the present invention.
Fig. 2 is liquid spray panel worm's eye view of the present invention
Fig. 3 is the worm's eye view of gas spray panel of the present invention
In figure:
1-motor skull 2-liquid spray panel 3-catalytic bed frame
4-catalyzer 5-regulating ring 6-gas spray panel
Combustion chamber 8-motor combustion chamber case 9-motor fuel powder column before 7-motor
10-skull seal ring 11-catalytic bed seal ring 12-combustion chamber sealing circle
16 second bolt assembly 17 the 3rd bolt assembly 18-bolts
101-oxidant inlet 201-liquid spray orifice 601-gas spray orifice
Combustion chamber pressure tap before 602-counter sink 701-
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.
A kind of high-strength hydrogen peroxide catalytic bed structure for ground experiment hybrid rocket engine of the present invention, as shown in Figure 1, comprise on combustion chamber 7 before motor skull 1, liquid spray panel 2, catalytic bed frame 3, catalyzer 4, regulating ring 5, gas spray panel 6, motor, motor combustion chamber case 8, motor fuel powder column 9, skull seal ring 10, catalytic bed seal ring 11, combustion chamber sealing circle 12, catalyzer backstop 14, the first bolt assembly 15, the second bolt assembly 16, the 3rd bolt assembly 17, bolt 18 under backstop 13, catalyzer.
Between motor skull 1 and catalytic bed frame 3, by skull seal ring 10, seal;
Before catalytic bed frame 3 and motor, between combustion chamber 7, by catalytic bed seal ring 11, seal;
In catalytic bed frame 3, be provided with cavity, in cavity, be provided with catalyzer 4, the top and bottom of catalyzer 4 are respectively equipped with on catalyzer backstop 14 under backstop 13 and catalyzer, liquid spray panel 2 is set between backstop 13 and motor skull 1 on catalyzer, gas spray panel 6 is fixed on catalytic bed frame 3 lower ends by bolt 18, under gas spray panel 6 and catalyzer, between backstop 14, be provided with regulating ring 5, the thickness of regulating ring 5 should make catalyzer 4 can not rock in cavity;
Motor combustion chamber case 8 is by combustion chamber 7 before the 3rd bolt assembly 17 connecting engines;
Before motor combustion chamber case 8 and motor, between combustion chamber 7, by combustion chamber sealing circle 12, seal;
On catalyzer, under backstop 13 and catalyzer, backstop 14 is wire nettings of being manufactured by stainless steel or other materials compatible with hydrogen peroxide, has certain adaptability to changes, and the aperture of wire netting is less than the minimum diameter of catalyzer 4 particles.
Regulating ring 5 can be manufactured by stainless steel, aluminium or other materials compatible with hydrogen peroxide, and regulating ring 5 is ring structure, and the cylindrical channel that its internal diameter surrounds forms inner passage.
In the time need to regulating the loadings of catalyzer 4, directly change the regulating ring 5 of different-thickness, coordinate the thickness of catalyzer 4, can guarantee the fixing of catalyzer 4 under different loadings.Meanwhile, regulating ring 5 inner passages also provide space for catalyzer 4 possible expanded by heating in the process of catalyzing hydrogen peroxide, prevent that catalytic bed is destructurized.
As another embodiment of the invention, catalyzer 4 can be replaced by the netted catalytic structure of multilayer or other integrated type catalytic structure.
Working procedure:
High-strength hydrogen peroxide liquid as oxygenant enters through the oxidant inlet 101 on skull 1 head cavity that between skull 1 and liquid spray panel 2, space forms.Hydrogen peroxide in head cavity is through backstop 13 on the liquid spray orifice 201 on liquid spray panel 2 and catalyzer, and spray is uniformly to catalyzer 4.The catalyzed decomposition of hydrogen peroxide, generates high-temperature decomposition product water vapor and oxygen.Decomposition product, by backstop under catalyzer 14, regulating ring 5, reaches gas spray panel 6.Through the gas spray orifice 601 on gas spray panel 6, high-temperature decomposition product fires chamber 7 before entering motor.High-temperature oxygen reacts with motor fuel powder column 9 in motor combustion chamber case 8.
Claims (10)
1. for a high-strength hydrogen peroxide catalytic bed structure for ground experiment hybrid rocket engine, comprise on combustion chamber before motor skull, liquid spray panel, catalytic bed frame, catalyzer, regulating ring, gas spray panel, motor, motor combustion chamber case, motor fuel powder column, catalyzer backstop under backstop, catalyzer;
Motor head covers and is provided with oxidant inlet, between oxidant inlet and liquid spray panel, forms head cavity, and motor skull is fixedly connected with the upper end of catalytic bed frame, and chamber is fired before being fixedly connected with motor in the lower end of catalytic bed frame; In catalytic bed frame, be provided with cavity, in cavity, be provided with catalyzer, the top and bottom of catalyzer are respectively equipped with on catalyzer backstop under backstop and catalyzer, liquid spray panel is set between backstop and motor skull on catalyzer, gas spray panel is fixed on cavity lower end, under gas spray panel and catalyzer, between backstop, is provided with regulating ring; Before motor, combustion chamber is provided with front combustion chamber pressure tap; Motor combustion chamber case fires chamber before being fixedly connected with motor.
2. a kind of high-strength hydrogen peroxide catalytic bed structure for ground experiment hybrid rocket engine according to claim 1, described liquid spray panel is being processed concave station in the face of in the one side of catalyzer, and described gas spray panel is being processed concave station in the face of in the one side of catalyzer.
3. a kind of high-strength hydrogen peroxide catalytic bed structure for ground experiment hybrid rocket engine according to claim 1, described regulating ring adopts stainless steel, aluminium or other materials compatible with hydrogen peroxide, regulating ring is ring structure, the cylindrical channel that internal diameter surrounds forms inner passage, and regulating ring thickness can be changed as requested.
4. a kind of high-strength hydrogen peroxide catalytic bed structure for ground experiment hybrid rocket engine according to claim 1, described liquid spray panel is provided with liquid spray orifice, liquid spray orifice is uniform form, and aperture is determined according to hydrogen peroxide flow.
5. a kind of high-strength hydrogen peroxide catalytic bed structure for ground experiment hybrid rocket engine according to claim 1, described gas spray panel is provided with gas spray orifice and counter sink, gas spray panel is fixedly connected with catalytic bed frame with counter sink by bolt, the distribution of the gas spray orifice on gas spray panel and aperture are according to hydrogen peroxide flow, and the geometrical construction of binding engine fuel powder column designs, matched in the spray position of the high-temperature decomposition product of hydrogen peroxide catalyzed rear generation with the geometrical construction of powder column.
6. a kind of high-strength hydrogen peroxide catalytic bed structure for ground experiment hybrid rocket engine according to claim 1, the wire netting that on described catalyzer, under backstop and catalyzer, backstop adopts stainless steel or other materials compatible with hydrogen peroxide to manufacture, the aperture of wire netting is less than the minimum diameter of catalyst granules.
7. a kind of high-strength hydrogen peroxide catalytic bed structure for ground experiment hybrid rocket engine according to claim 1, described catalyzer is granular or by the netted catalytic structure of multilayer or other integrated type catalytic structure.
8. a kind of high-strength hydrogen peroxide catalytic bed structure for ground experiment hybrid rocket engine according to claim 1, between described motor skull and catalytic bed frame, by skull seal ring, seal, before described catalytic bed frame and motor, between combustion chamber, by catalytic bed seal ring, seal, before described motor combustion chamber case and motor, between combustion chamber, by combustion chamber sealing circle, seal.
9. a kind of high-strength hydrogen peroxide catalytic bed structure for ground experiment hybrid rocket engine according to claim 1, described front combustion chamber pressure tap for external pressure transducer, measure before the temperature of pyrolysis gas after the pressure of combustion chamber or external temperature sensor measurement gas spray panel.
10. a kind of high-strength hydrogen peroxide catalytic bed structure for ground experiment hybrid rocket engine according to claim 1, the oxidant inlet welding connecting-tube nozzle that described motor head covers, connecting-tube nozzle is corresponding with upstream hydrogen peroxide transporting system caliber.
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| CN201310487700.3A CN103557094B (en) | 2013-09-18 | 2013-10-17 | A kind of ground experiment solid-liquid rocket high-strength hydrogen peroxide catalytic bed structure |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103993984A (en) * | 2014-05-23 | 2014-08-20 | 清华大学深圳研究生院 | Hydrogen-peroxide-assisted ignition device |
| CN104891054A (en) * | 2015-05-29 | 2015-09-09 | 北京航空航天大学 | Bladder-type storage tank for high concentration hydrogen peroxide |
| CN105715409A (en) * | 2016-01-14 | 2016-06-29 | 北京航空航天大学 | Annular solid-liquid catalytic ignition engine |
| CN106121864A (en) * | 2016-07-22 | 2016-11-16 | 北京航空航天大学 | A kind of head body portion combines multizone and is centrifuged spray solid-liquid rocket |
| CN106194502A (en) * | 2016-07-15 | 2016-12-07 | 北京航空航天大学 | A kind of solid-liquid Attitude rocket engine |
| CN106762228A (en) * | 2017-01-19 | 2017-05-31 | 北京航空航天大学 | The high-strength hydrogen peroxide catalytic bed that solid-liquid rocket works long hours |
| CN106837610A (en) * | 2017-04-05 | 2017-06-13 | 北京航空航天大学 | A kind of close-coupled work long hours solid-liquid rocket catalysis bed structure |
| CN106968837A (en) * | 2017-04-01 | 2017-07-21 | 北京航空航天大学 | A kind of secondary spray structure of hydrogen peroxide hybrid rocket engine afterburner |
| CN107143433A (en) * | 2017-05-17 | 2017-09-08 | 上海空间推进研究所 | Single group member liquid-propellant rocket engine radial direction chuck catalyst bed |
| CN107218857A (en) * | 2017-08-03 | 2017-09-29 | 北京航空航天大学 | Micro missile |
| CN107461277A (en) * | 2017-10-11 | 2017-12-12 | 北京航空航天大学 | A kind of ground experiment modularization hybrid rocket engine |
| CN107642436A (en) * | 2017-08-11 | 2018-01-30 | 北京航空航天大学 | A kind of hybrid rocket engine thrust gas vector controlled structure and method |
| CN109611239A (en) * | 2018-12-11 | 2019-04-12 | 上海新力动力设备研究所 | Gas generator grain support structure |
| CN113339162A (en) * | 2021-07-21 | 2021-09-03 | 北京航空航天大学 | High-temperature-resistant pressure-drop-adjustable solid-liquid hybrid rocket engine catalytic bed |
| CN113389658A (en) * | 2021-07-21 | 2021-09-14 | 北京航空航天大学 | Pin type self-adaptive variable-thrust solid-liquid rocket engine head structure |
| CN113483098A (en) * | 2021-07-14 | 2021-10-08 | 西安航天动力研究所 | Ring groove high-pressure self-sealing mechanism and liquid flow detection device for injector plate |
| CN115142987A (en) * | 2022-07-19 | 2022-10-04 | 中国人民解放军战略支援部队航天工程大学 | A simulation method of high temperature gas after catalytic decomposition of aqueous hydrogen peroxide solution |
| CN115324774A (en) * | 2022-08-26 | 2022-11-11 | 西安中科宇航动力技术有限公司 | A modularized partitioned mesh catalyst bed structure and its filling method |
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| CN103993984A (en) * | 2014-05-23 | 2014-08-20 | 清华大学深圳研究生院 | Hydrogen-peroxide-assisted ignition device |
| CN103993984B (en) * | 2014-05-23 | 2016-07-13 | 清华大学深圳研究生院 | A kind of hydrogen peroxide auxiliary ignition device |
| CN104891054A (en) * | 2015-05-29 | 2015-09-09 | 北京航空航天大学 | Bladder-type storage tank for high concentration hydrogen peroxide |
| CN105715409A (en) * | 2016-01-14 | 2016-06-29 | 北京航空航天大学 | Annular solid-liquid catalytic ignition engine |
| CN106194502A (en) * | 2016-07-15 | 2016-12-07 | 北京航空航天大学 | A kind of solid-liquid Attitude rocket engine |
| CN106194502B (en) * | 2016-07-15 | 2018-03-02 | 北京航空航天大学 | A kind of solid-liquid Attitude rocket engine |
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| CN106762228A (en) * | 2017-01-19 | 2017-05-31 | 北京航空航天大学 | The high-strength hydrogen peroxide catalytic bed that solid-liquid rocket works long hours |
| CN106968837A (en) * | 2017-04-01 | 2017-07-21 | 北京航空航天大学 | A kind of secondary spray structure of hydrogen peroxide hybrid rocket engine afterburner |
| CN106837610B (en) * | 2017-04-05 | 2019-08-06 | 北京航空航天大学 | A compact long-time working solid-liquid rocket engine catalytic bed structure |
| CN106837610A (en) * | 2017-04-05 | 2017-06-13 | 北京航空航天大学 | A kind of close-coupled work long hours solid-liquid rocket catalysis bed structure |
| CN107143433A (en) * | 2017-05-17 | 2017-09-08 | 上海空间推进研究所 | Single group member liquid-propellant rocket engine radial direction chuck catalyst bed |
| CN107218857A (en) * | 2017-08-03 | 2017-09-29 | 北京航空航天大学 | Micro missile |
| CN107642436A (en) * | 2017-08-11 | 2018-01-30 | 北京航空航天大学 | A kind of hybrid rocket engine thrust gas vector controlled structure and method |
| CN107461277A (en) * | 2017-10-11 | 2017-12-12 | 北京航空航天大学 | A kind of ground experiment modularization hybrid rocket engine |
| CN109611239A (en) * | 2018-12-11 | 2019-04-12 | 上海新力动力设备研究所 | Gas generator grain support structure |
| CN113483098A (en) * | 2021-07-14 | 2021-10-08 | 西安航天动力研究所 | Ring groove high-pressure self-sealing mechanism and liquid flow detection device for injector plate |
| CN113339162A (en) * | 2021-07-21 | 2021-09-03 | 北京航空航天大学 | High-temperature-resistant pressure-drop-adjustable solid-liquid hybrid rocket engine catalytic bed |
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| CN115142987A (en) * | 2022-07-19 | 2022-10-04 | 中国人民解放军战略支援部队航天工程大学 | A simulation method of high temperature gas after catalytic decomposition of aqueous hydrogen peroxide solution |
| CN115142987B (en) * | 2022-07-19 | 2024-07-02 | 中国人民解放军战略支援部队航天工程大学 | A method for simulating high-temperature combustion gas after catalytic decomposition of aqueous hydrogen peroxide solution |
| CN115324774A (en) * | 2022-08-26 | 2022-11-11 | 西安中科宇航动力技术有限公司 | A modularized partitioned mesh catalyst bed structure and its filling method |
| CN115653788A (en) * | 2022-12-27 | 2023-01-31 | 中国空气动力研究与发展中心空天技术研究所 | Hydrogen peroxide kerosene dual-component gas generator and working method thereof |
| CN115653788B (en) * | 2022-12-27 | 2023-04-07 | 中国空气动力研究与发展中心空天技术研究所 | Hydrogen peroxide kerosene dual-component gas generator and working method thereof |
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