CN111022218A - Hydrogen peroxide kerosene variable working condition thrust chamber adopting pintle injector - Google Patents
Hydrogen peroxide kerosene variable working condition thrust chamber adopting pintle injector Download PDFInfo
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- CN111022218A CN111022218A CN201911409491.4A CN201911409491A CN111022218A CN 111022218 A CN111022218 A CN 111022218A CN 201911409491 A CN201911409491 A CN 201911409491A CN 111022218 A CN111022218 A CN 111022218A
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- hydrogen peroxide
- kerosene
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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
- F02K9/42—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using liquid or gaseous propellants
- F02K9/60—Constructional parts; Details not otherwise provided for
- F02K9/62—Combustion or thrust chambers
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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
- F02K9/42—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using liquid or gaseous propellants
- F02K9/44—Feeding propellants
- F02K9/52—Injectors
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
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Abstract
The invention discloses a hydrogen peroxide kerosene variable working condition thrust chamber adopting a pintle injector, which comprises an injection chamber, a catalytic chamber and a combustion chamber which are sequentially connected and communicated from top to bottom, and further comprises an injector; the injector is axially and coaxially arranged in the injection chamber, the catalytic chamber and the combustion chamber in a penetrating way, and the injection end of the injector is positioned in the combustion chamber; the jet end is provided with a kerosene jet nozzle with an adjustable opening size, and the kerosene jet nozzle is used for jetting kerosene fuel towards the combustion chamber and mixing and combusting the kerosene fuel with decomposed hydrogen peroxide fuel. The ignition structure is simplified by the natural contact characteristic of the high-temperature fuel gas catalyzed by the hydrogen peroxide and the kerosene.
Description
Technical Field
The invention belongs to the technical field of liquid rocket engines, and particularly relates to a hydrogen peroxide kerosene variable working condition thrust chamber adopting a pintle injector.
Background
The liquid rocket engine is an important foundation of the current carrier rocket and has important significance for space launching and deep space exploration tasks. In order to further reduce the launching cost and increase the launching frequency, new requirements are put on the reuse and convenience of the rocket engine. The hydrogen peroxide and the kerosene are combined as a pair of normal-temperature nontoxic propellants, have the characteristics of high density specific impulse and easiness in storage, can bring convenience in storage and filling, and greatly reduce the emission preparation time; the hydrogen peroxide can be used as a working medium to drive the turbopump to operate after being catalyzed, the whole circulation mode is relatively simple, self-ignition can be generated after gas meets kerosene, the engine is convenient to start, and the reliability is high. In addition, in order to realize the recycling of the rocket engine, the liquid rocket engine with the depth variable thrust capability is a necessary condition for realizing rocket recovery. In order to realize thrust conditions, liquid rocket engines often need to greatly adjust the flow of propellant, although gas can realize dynamic adjustment of injection pressure drop according to back pressure, the injection pressure drop change of liquid propellant is in a square relation with pressure change, and if the injection area is kept unchanged, the upstream supply pressure needs to be increased by nearly 25 times under the condition of realizing 5 times of flow regulation ratio, which is almost impossible to realize by an upstream supply system.
The currently and practically applied variable thrust rocket engine in China is a Chang' e No. three-down stage 7500N engine, and perfect verification is obtained in a flight task in 2013. In summary, at present, there is no variable thrust scheme using normal temperature hydrogen peroxide and kerosene as propellants, so that the development of related design research has important significance for the further development of aerospace power devices.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a hydrogen peroxide kerosene variable working condition thrust chamber adopting a pintle injector aiming at the defects of the prior art, which can realize the regulation of the thrust of an engine, ensure the reliable work under the variable working condition and well meet the requirements of the reuse and the recovery of a rocket engine.
In order to solve the technical problems, the invention adopts the technical scheme that the hydrogen peroxide kerosene variable working condition thrust chamber adopting a pintle injector comprises an injection chamber, a catalytic chamber and a combustion chamber which are sequentially connected and communicated from top to bottom, and further comprises an injector; the injector is axially and coaxially arranged in the injection chamber, the catalytic chamber and the combustion chamber in a penetrating way, and the injection end of the injector is positioned in the combustion chamber; the jet end is provided with a kerosene jet nozzle with an adjustable opening size, and the kerosene jet nozzle is used for jetting kerosene fuel towards the combustion chamber and mixing and combusting the kerosene fuel with decomposed hydrogen peroxide fuel.
An annular hydrogen peroxide channel is formed between the inner wall of the injection chamber and the injector; a horizontal flow equalizing plate and a supporting plate are correspondingly arranged between the catalytic chamber and the injection chamber and between the catalytic chamber and the combustion chamber respectively, a catalyst for catalytic decomposition of hydrogen peroxide is filled between the flow equalizing plate and the supporting plate, and through holes for circulation of the hydrogen peroxide are formed in the flow equalizing plate and the supporting plate.
Further, the injector comprises a shell which is cylindrical; the pintle is coaxially sleeved in the shell and forms a vertical flow passage with the shell; the pintle comprises a guide section, a piston section, a connecting section and a hemisphere serving as a spraying end from top to bottom; the diameter of the hemisphere is larger than that of the shell, one end of the horizontal plane of the hemisphere faces upwards, the hemisphere is located outside the shell, and a kerosene injection port with adjustable size is formed between the hemisphere and the shell along with the up-and-down sliding of the pintle relative to the shell.
Furthermore, a spiral flow guide channel is formed in the piston section and along the outer wall, and the flow guide channel at the piston end, the connecting section and the shell are sequentially communicated to form a kerosene fuel flow channel.
Furthermore, the flow equalizing plate is a circular plate body, a central circular hole of the flow equalizing plate is used for the injector to penetrate through, and through holes for the hydrogen peroxide to flow are uniformly distributed on the flow equalizing plate.
Furthermore, the support plate is a circular plate body, the central circular ring hole of the support plate is used for the injector to penetrate through, and through holes for the hydrogen peroxide to flow through are uniformly distributed on the support plate.
Furthermore, a stop ring is arranged in the middle of the catalytic chamber, the stop ring is a ring body, and the side wall of the stop ring is tightly attached to the inner wall of the catalytic chamber.
Furthermore, the injection chamber comprises a cylindrical section and an expansion section which are coaxially and integrally connected from top to bottom, a plurality of partition plates which are vertically arranged and are distributed by emitting from the center to the outside are arranged in the expansion section at intervals around the periphery of the expansion section, the expansion section is divided into a plurality of independent chambers, and each chamber is communicated with the cylindrical section and is used for containing and receiving hydrogen peroxide.
Furthermore, the combustion chamber is of a double-layer hollow shell structure, a hydrogen peroxide fluid channel is formed between the double layers of shells, and the upper part of the hydrogen peroxide fluid channel is communicated with the injection chamber through a connecting pipe.
Furthermore, a Laval nozzle is coaxially arranged at the end part of the combustion chamber, the Laval nozzle is a double-layer hollow shell, and a hydrogen peroxide fluid channel is formed between the double-layer shell and is communicated with the hydrogen peroxide fluid channel of the combustion chamber; the lower part of the Laval nozzle is provided with a hydrogen peroxide inlet.
The invention also discloses an injector for the hydrogen peroxide kerosene variable working condition thrust chamber, which is characterized by comprising the following components: the shell is cylindrical; the pintle is coaxially sleeved in the shell and forms a vertical flow passage with the shell; the pintle comprises a guide section, a piston section, a connecting section and a hemisphere serving as a spraying end from top to bottom; the diameter of the hemisphere is larger than that of the shell, one end of the horizontal plane of the hemisphere faces upwards, the hemisphere is located outside the shell, and a kerosene injection port with adjustable size is formed between the hemisphere and the shell along with the up-and-down sliding of the pintle relative to the shell.
The hydrogen peroxide kerosene variable working condition thrust chamber adopting the pintle injector has the following advantages: the ignition structure is simplified by the natural contact characteristic of the high-temperature fuel gas catalyzed by the hydrogen peroxide and the kerosene. The flow rates of hydrogen peroxide and kerosene entering the combustion chamber can be varied to effect varying the thrust of the thrust chamber.
Drawings
FIG. 1 is a schematic structural diagram of a hydrogen peroxide kerosene variable working condition thrust chamber adopting a pintle injector.
Wherein: 1. an injector chamber; 2. a catalyst chamber; 3. a combustion chamber; 4. spraying a Czochralski method; 5. an injector; 5-1, pintle; 5-2, a flow guide channel; 5-3, hemispheroid; 5-4, a shell; 6. a flow equalizing plate; 8. a flow stopping ring; 7. a compression plate; 9. a hydrogen peroxide inlet; 10. and (4) connecting the pipes.
Detailed Description
The invention relates to a hydrogen peroxide kerosene variable working condition thrust chamber adopting a pintle injector, which comprises an injection chamber 1, a catalytic chamber 2 and a combustion chamber 3 which are sequentially connected and communicated from top to bottom as shown in figure 1, and further comprises an injector 5; the injector 5 is axially and coaxially arranged in the injection chamber 1, the catalytic chamber 2 and the combustion chamber 3 in a penetrating way, and the injection end of the injector is positioned in the combustion chamber 3; the jet end of the burner is provided with a kerosene jet nozzle with an adjustable opening size, and the kerosene jet nozzle is used for jetting kerosene fuel towards the combustion chamber 3 and mixing and combusting the kerosene fuel and decomposed hydrogen peroxide fuel; an annular hydrogen peroxide channel is formed between the inner wall of the injection chamber 1 and the injector 5; a horizontal flow equalizing plate 6 and a supporting plate 7 are respectively and correspondingly arranged between the catalytic chamber 2 and the injection chamber 1 and between the catalytic chamber 2 and the combustion chamber 3, a catalyst for catalytic decomposition of hydrogen peroxide is filled between the flow equalizing plate 6 and the supporting plate 7, and through holes for circulation of hydrogen peroxide are respectively formed in the flow equalizing plate 6 and the supporting plate 7. After passing through the catalytic chamber, the hydrogen peroxide is catalytically decomposed to obtain oxygen and water vapor, and the oxygen and the water vapor meet kerosene at the upper part in the combustion chamber 3 at the temperature of about 1000k, so that the hydrogen peroxide can be combusted. The combustion chamber 3 and the catalytic chamber 2 are connected by a flange.
The injector 5 comprises: a shell 5-4 which is cylindrical; the pintle 5-1 is coaxially sleeved in the shell 5-4 and forms a vertical flow channel with the shell 5-4; the pintle 5-1 comprises a guide section, a piston section, a connecting section and a hemisphere serving as a spraying end from top to bottom; the diameter of the hemisphere 5-3 is larger than that of the shell 5-4, one end of the horizontal plane of the hemisphere is upward, the hemisphere is positioned outside the shell 5-4, and a kerosene injection port with adjustable size is formed between the hemisphere 5-3 and the shell 5-4 along with the up-and-down sliding of the pintle 5-1 relative to the shell 5-4. The fluid is changed into a horizontal direction after flowing out vertically, and then collides with the smooth cambered surface of the hemispheroid, and because the spherical surface is smooth and has no protruding part, a backflow area cannot be generated when the fluid flows out, and the forward direction is contacted with the hydrogen oxide decomposition gas. The pintle 5-1 moves up and down with a single degree of freedom, so that the change of injection areas under different flow conditions is realized, and the efficient atomization of kerosene fuels under different conditions is realized. The piston section is provided with a spiral flow guide channel 5-2 along the outer wall, and the flow guide channel 5-2 at the piston end, the connecting section and the shell 5-4 are communicated in sequence to form a kerosene fuel flow channel.
In order to allow sufficient contact of the hydrogen peroxide with the catalyst, the hydrogen peroxide is uniformly dispersed before entering the catalyst chamber 3. A horizontal flow equalizing plate 6 is arranged in the catalytic chamber 3 and above the catalyst, the flow equalizing plate 6 is a circular plate, a central circular hole of the circular plate is used for an injector 5 to penetrate through, and through holes for hydrogen peroxide to flow are uniformly distributed on the flow equalizing plate 6. The hydrogen peroxide enters the catalytic chamber 3 through the through holes to play a role of buffering. The support plate 7 is a circular plate body, a central circular ring hole of the support plate is used for the injector 5 to penetrate through, and through holes for hydrogen peroxide to flow are uniformly distributed on the support plate 7.
When the hydrogen peroxide fluid enters the catalytic chamber 2, the hydrogen peroxide fluid contacts with the catalyst, however, because the catalyst cannot be tightly attached to the side wall, part of the hydrogen peroxide can be attached to the side wall surface and flows downwards, if the hydrogen peroxide is attached to the side wall and flows downwards, the hydrogen peroxide fluid cannot interact with the catalyst, and therefore, the flow stopping ring 8 which is a circular ring body is also arranged in the catalytic chamber 2, and the side wall of the flow stopping ring is tightly attached to the inner wall of the catalytic chamber 2, so that the hydrogen peroxide is prevented from being attached to the side wall and flowing downwards. In order to make the flow stop ring 8 more firm, a plurality of connecting columns in the horizontal direction can be arranged in the circular ring at intervals around the circumference of the circular ring.
The injection chamber 1 comprises a cylindrical section and an expansion section which are coaxially and integrally connected from top to bottom, a plurality of partition plates which are vertically arranged and are distributed by emitting from the center to the outside are arranged in the expansion section at intervals around the periphery of the expansion section, the expansion section is divided into a plurality of independent chambers, and each chamber is communicated with the cylindrical section and is used for containing hydrogen peroxide. The hydrogen peroxide is pre-distributed to ensure uniform entry into the catalytic chamber 2.
The combustion chamber 3 is enclosed by a double-layer hollow shell, a hydrogen peroxide fluid channel is formed between the double-layer shell, and the upper part of the fluid channel is communicated with the pipeline of the injection chamber 1. The flow of the hydrogen peroxide fluid in the fluid channel reduces the temperature of the combustion chamber 3 on the one hand, while preheating of the hydrogen peroxide takes place.
The end part of the combustion chamber 3 is communicated with a Laval nozzle 4 which is a double-layer hollow shell, and a hydrogen peroxide fluid channel is formed between the double-layer shells and is communicated with the hydrogen peroxide fluid channel of the combustion chamber 2; the hydrogen peroxide inlet 9 is located on the lower outer wall surface of the laval nozzle 4.
The name also discloses an injector for the hydrogen peroxide kerosene variable working condition thrust chamber, which comprises: a shell 5-4 which is cylindrical; the pintle 5-1 is coaxially sleeved in the shell 5-4 and forms a vertical flow channel with the shell 5-4; the pintle 5-1 comprises a guide section, a piston section, a connecting section and a hemisphere serving as a spraying end from top to bottom; the diameter of the hemisphere 5-3 is larger than that of the shell 5-4, one end of the horizontal plane of the hemisphere is upward, the hemisphere is positioned outside the shell 5-4, and a kerosene injection port with adjustable size is formed between the hemisphere 5-3 and the shell 5-4 along with the up-and-down sliding of the pintle 5-1 relative to the shell 5-4.
According to the hydrogen peroxide and kerosene variable-working-condition thrust chamber adopting the pintle injector, the propellant is prepared from 90 mass percent of hydrogen peroxide and kerosene, and the ignition structure is simplified due to the natural contact characteristic of high-temperature fuel gas catalyzed by hydrogen peroxide and kerosene. After hydrogen peroxide and kerosene are all supercharged, the hydrogen peroxide is pumped into the thrust chamber by the turbopump, the pressure can be adjusted, the quality of the hydrogen peroxide going to the injection chamber 1 is adjusted, the power of the turbopump is adjusted, when the rotating speed of the turbopump is increased, the outlet pressure of the hydrogen peroxide pump arranged in the turbopump is increased accordingly, the flow entering the combustion chamber 3 is increased accordingly, the kerosene flow is adjusted simultaneously at the moment, the kerosene flow entering the combustion chamber 3 is increased, and the thrust of the 3 thrust chambers is increased accordingly. When the engine thrust needs to be reduced, the pumping amounts of hydrogen peroxide and kerosene are reduced. As the thrust requirement increases, the pintle 5-1 moves progressively upstream, the effective injection area of the pintle 5-1 progressively decreases, and the injection pressure drop of the kerosene fuel remains constant despite the increased flow rate.
When the thrust chamber is stopped, the operation is specifically as follows, firstly, the hydrogen peroxide entering the combustion chamber 3 is reduced, in the process, the entering of the kerosene is firstly stopped, the combustion chamber 3 is slowly extinguished, the chamber pressure is gradually weakened, at the moment, the hydrogen peroxide continuously cools the Laval nozzle 4 and the fluid channel of the combustion chamber 3, and then, the entering amount of the hydrogen peroxide is closed.
Claims (10)
1. A hydrogen peroxide kerosene variable working condition thrust chamber adopting a pintle injector is characterized by comprising an injection chamber (1), a catalytic chamber (2) and a combustion chamber (3) which are sequentially connected and run through from top to bottom, and an injector (5);
the injector (5) is axially and coaxially arranged in the injection chamber (1), the catalytic chamber (2) and the combustion chamber (3) in a penetrating way, and the injection end of the injector is positioned in the combustion chamber (3); the jet end of the burner is provided with a kerosene jet nozzle with an adjustable opening size, and the kerosene jet nozzle is used for jetting kerosene fuel towards the combustion chamber (3) and mixing and combusting the kerosene fuel with decomposed hydrogen peroxide fuel;
an annular hydrogen peroxide channel is formed between the inner wall of the injection chamber (1) and the injector (5);
a horizontal flow equalizing plate (6) and a supporting plate (7) are correspondingly arranged between the catalytic chamber (2) and the injection chamber (1) and between the catalytic chamber (2) and the combustion chamber (3), a catalyst for catalytically decomposing hydrogen peroxide is filled between the flow equalizing plate (6) and the supporting plate (7), and through holes for hydrogen peroxide to flow are formed in the flow equalizing plate (6) and the supporting plate (7).
2. A hydrogen peroxide kerosene working condition variable thrust chamber using pintle injector according to claim 1, characterized in that said injector (5) comprises:
a cylindrical housing (5-4);
the pintle (5-1) is coaxially sleeved in the shell (5-4) and forms a vertical flow channel with the shell (5-4); the pintle (5-1) comprises a guide section, a piston section, a connecting section and a hemisphere serving as a spraying end from top to bottom; the diameter of the hemisphere (5-3) is larger than that of the shell (5-4), one end of the horizontal plane of the hemisphere faces upwards, the hemisphere is located outside the shell (5-4), and a kerosene injection port with adjustable size is formed between the hemisphere (5-3) and the shell (5-4) along with the up-and-down sliding of the pintle (5-1) relative to the shell (5-4).
3. The hydrogen peroxide kerosene variable-condition thrust chamber adopting the pintle injector as claimed in claim 2, wherein a spiral guide channel (5-2) is formed on the piston section along the outer wall, and the guide channel (5-2) at the piston end, the connecting section and the housing (5-4) are sequentially communicated to form a kerosene fuel flow passage between the guide section and the housing (5-4).
4. The hydrogen peroxide kerosene variable-condition thrust chamber adopting the pintle injector according to claim 1, 2 or 3, characterized in that the flow-equalizing plate (6) is a circular plate, the central circular hole of the flow-equalizing plate is used for the injector (5) to pass through, and through holes for the hydrogen peroxide to flow are uniformly distributed on the flow-equalizing plate (6).
5. The hydrogen peroxide kerosene variable-condition thrust chamber adopting the pintle injector according to claim 1, 2 or 3, characterized in that the support plate (7) is a circular plate, a central circular hole of the circular plate is used for the injector (5) to pass through, and through holes for the hydrogen peroxide to flow through are uniformly distributed on the support plate (7).
6. A hydrogen peroxide kerosene variable working condition thrust chamber adopting pintle injector according to claim 1, 2 or 3, characterized in that a stop ring (8) is arranged in the middle of the catalytic chamber (2), the stop ring (8) is a ring body, and the side wall of the stop ring is tightly attached to the inner wall of the catalytic chamber (2).
7. The hydrogen peroxide kerosene variable-condition thrust chamber adopting pintle injector according to claim 1, 2 or 3, characterized in that said injector (1) comprises a cylindrical section and an expansion section which are coaxially and integrally connected from top to bottom, a plurality of partition plates which are vertically arranged and distributed from the center to the outside are arranged in the expansion section at intervals around the circumference of the expansion section, the expansion section is divided into a plurality of independent chambers, and each chamber is communicated with the cylindrical section and is used for containing hydrogen peroxide.
8. A hydrogen peroxide kerosene working condition-changing thrust chamber using pintle injector according to claim 1, 2 or 3, characterized in that said combustion chamber (3) is a double-layer hollow shell structure, a hydrogen peroxide fluid channel is formed between the double-layer shells, and the upper part of said fluid channel is communicated with said injector (1) through a connecting pipe (10).
9. The hydrogen peroxide kerosene working condition variable thrust chamber adopting the pintle injector according to claim 8, characterized in that a laval nozzle (4) is coaxially arranged at the end of the combustion chamber (3), the laval nozzle (4) is a double-layer hollow shell, a hydrogen peroxide fluid channel is formed between the double-layer hollow shell and is communicated with the hydrogen peroxide fluid channel of the combustion chamber (3); the lower part of the Laval nozzle (4) is provided with a hydrogen peroxide inlet (9).
10. An injector for a hydrogen peroxide kerosene variable condition thrust chamber, comprising:
a cylindrical housing (5-4);
the pintle (5-1) is coaxially sleeved in the shell (5-4) and forms a vertical flow channel with the shell (5-4); the pintle (5-1) comprises a guide section, a piston section, a connecting section and a hemisphere serving as a spraying end from top to bottom; the diameter of the hemisphere (5-3) is larger than that of the shell (5-4), one end of the horizontal plane of the hemisphere faces upwards, the hemisphere is located outside the shell (5-4), and a kerosene injection port with adjustable size is formed between the hemisphere (5-3) and the shell (5-4) along with the up-and-down sliding of the pintle (5-1) relative to the shell (5-4).
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| CN201911409491.4A CN111022218B (en) | 2019-12-31 | 2019-12-31 | Hydrogen peroxide kerosene variable working condition thrust chamber adopting pintle injector |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112160848A (en) * | 2020-09-29 | 2021-01-01 | 西北工业大学 | Self-supercharging solid-liquid mixed engine |
| CN112177801A (en) * | 2020-08-31 | 2021-01-05 | 西北工业大学 | Hydrogen peroxide/kerosene rocket engine thrust chamber based on third fluid |
| CN112267957A (en) * | 2020-11-24 | 2021-01-26 | 西安航天动力研究所 | Pintle type injector capable of realizing accurate adjustment |
| CN112502855A (en) * | 2020-09-16 | 2021-03-16 | 西北工业大学 | Variable-thrust normal-temperature liquid propellant rocket engine based on hydraulic double-regulation system |
| CN112855382A (en) * | 2021-03-02 | 2021-05-28 | 北京航空航天大学 | Liquid oxygen kerosene pintle injector |
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| CN114382613A (en) * | 2022-01-17 | 2022-04-22 | 北京航空航天大学 | Adjustable gas-liquid pintle injection system catalyzed by hydrogen peroxide full flow |
| CN114592989A (en) * | 2022-05-09 | 2022-06-07 | 西安航天动力研究所 | Liquid oxygen kerosene pintle injector thrust chamber and starting method thereof |
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| CN112177801A (en) * | 2020-08-31 | 2021-01-05 | 西北工业大学 | Hydrogen peroxide/kerosene rocket engine thrust chamber based on third fluid |
| CN112502855A (en) * | 2020-09-16 | 2021-03-16 | 西北工业大学 | Variable-thrust normal-temperature liquid propellant rocket engine based on hydraulic double-regulation system |
| CN112160848A (en) * | 2020-09-29 | 2021-01-01 | 西北工业大学 | Self-supercharging solid-liquid mixed engine |
| CN112267957A (en) * | 2020-11-24 | 2021-01-26 | 西安航天动力研究所 | Pintle type injector capable of realizing accurate adjustment |
| CN112855382A (en) * | 2021-03-02 | 2021-05-28 | 北京航空航天大学 | Liquid oxygen kerosene pintle injector |
| CN112984556A (en) * | 2021-03-02 | 2021-06-18 | 北京航空航天大学 | Liquid oxygen gas fuel gas generator |
| CN112855382B (en) * | 2021-03-02 | 2022-03-08 | 北京航空航天大学 | Liquid oxygen kerosene pintle injector |
| CN113530714A (en) * | 2021-09-16 | 2021-10-22 | 西安空天引擎科技有限公司 | Pumping pressure type engine starting ignition method and system based on hydrogen peroxide |
| CN113530714B (en) * | 2021-09-16 | 2021-12-14 | 西安空天引擎科技有限公司 | Pumping pressure type engine starting ignition method and system based on hydrogen peroxide |
| CN114382613A (en) * | 2022-01-17 | 2022-04-22 | 北京航空航天大学 | Adjustable gas-liquid pintle injection system catalyzed by hydrogen peroxide full flow |
| CN114382613B (en) * | 2022-01-17 | 2023-02-07 | 北京航空航天大学 | Adjustable gas-liquid pintle injection system catalyzed by hydrogen peroxide full flow |
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| CN114857622A (en) * | 2022-05-12 | 2022-08-05 | 中国人民解放军空军工程大学 | Device for quickly adjusting fuel injection area of rotary detonation combustion chamber |
| CN114857622B (en) * | 2022-05-12 | 2023-08-22 | 中国人民解放军空军工程大学 | Quick adjustable device of rotatory knocking combustion chamber fuel injection area |
| 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 |
| CN117072346A (en) * | 2023-10-17 | 2023-11-17 | 沈阳航天新光集团有限公司 | Device for connecting combustion chamber and injector in thrust chamber |
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| CN111022218B (en) | 2022-02-15 |
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