Fuel-electricity hybrid power cross-medium rocket engine

Abstract

The invention relates to the technical field of rocket engines, in particular to a fuel-electric hybrid power cross-medium rocket engine which comprises an electric power system, a fuel driving system, a supporting frame, a protective cover and an advancing impeller. The supporting frames are evenly arranged at the bottom end of the fuel driving system, the protective covers are evenly and fixedly installed at the bottom ends of the supporting frames, and the advancing impellers are rotatably installed at the bottom ends of the supporting frames. According to the invention, double-medium cooperative driving is realized, seamless switching between high-pressure gas starting and liquid steady-state driving is realized through joint energy supply of the fuel storage tank and the liquid oxygen storage tank and combination of an electric power system, the quality of a starting gas cylinder is reduced, the effective load is improved, and intelligent pressure regulation and control are realized; the flow ratio of the adjusting nozzle to the main nozzle is dynamically adjusted to ensure stable pressure of the combustion chamber, and combustion efficiency reduction caused by pressure fluctuation of a traditional engine is avoided.

Description

Technical Field

[0001] This invention relates to the field of engine technology, specifically to a fuel-electric hybrid cross-medium rocket engine. Background Technology

[0002] In existing rocket engine technology, traditional engines are often only suitable for a single environment, such as air flight or underwater navigation. For equipment requiring cross-medium navigation, such as cross-medium drones, single-powered engines cannot meet their needs for efficient operation in different media (water and air). For example, a purely fuel-powered engine may face problems such as needing to carry a large amount of fuel underwater, increasing its weight and shortening its range, and the fuel's unstable and uncontrollable movement underwater. On the other hand, a purely electric engine may have shortcomings such as insufficient range and limited power output, making it difficult to meet the diverse power requirements during cross-medium navigation. In addition, during cross-medium transitions, the engine also needs to have good adaptability and stability to ensure that the equipment can... To smoothly transition from one medium environment to another, existing rocket engines struggle to maintain stable operation across different media. Furthermore, the internal battery packs hinder convenient maintenance and replacement during repairs and adjustments. Therefore, a fuel-electric hybrid cross-medium rocket engine is needed to address these issues. This engine, through its combined propulsion system, can operate efficiently in various media environments, including underwater, above water, and in the air. Underwater, the electric drive provides stable thrust to meet the needs of underwater navigation. During cross-medium transitions, the rocket engine provides powerful thrust to help the equipment quickly traverse the medium interface. In the air, the rocket engine or electric drive can be selected appropriately based on the flight mission, ensuring both high efficiency and flexibility. Summary of the Invention

[0003] To address the problems in the prior art, the present invention provides a fuel-electric hybrid cross-medium rocket engine.

[0004] The technical solution adopted by the present invention to solve its technical problem is: a fuel-electric hybrid cross-medium rocket engine, including an electric system, a fuel drive system, a support frame, a protective cover, and a forward impeller. The electric system is located at the upper end of the fuel drive system, the support frame is uniformly arranged at the bottom end of the fuel drive system, the protective cover is uniformly fixedly installed at the bottom end of the support frame, and the forward impeller is rotatably installed at the bottom end of the support frame, and the forward impeller is located inside the protective cover.

[0005] Preferably, the fuel drive system includes a fuel storage tank, a fixed connection support plate, a protective support frame, a combustion chamber, an adjusting nozzle, a main nozzle, and a liquid oxygen storage tank. The combustion chamber is fixedly installed inside the bottom end of the protective support frame, and the fixed connection support plate is fixedly installed at the upper end of the protective support frame. The fuel storage tank and the liquid oxygen storage tank are symmetrically distributed and fixedly installed on the fixed connection support plate. The bottom ends of the fuel storage tank and the liquid oxygen storage tank are fixedly connected to the combustion chamber through a valve body and a pump body. The main nozzle is uniformly fixedly installed in the middle of the bottom end of the combustion chamber, and the adjusting nozzle is uniformly arranged at the bottom edge of the combustion chamber, with the main nozzle located inside the adjusting nozzle.

[0006] Preferably, the power system includes a limiting mounting plate, a power supply unit, a maintenance sealing plate, a second fixing bolt, a third fixing bolt, a maintenance slot, a connecting fixing plate, and a limiting mounting frame. The maintenance slot is evenly distributed on the limiting mounting frame. The second fixing bolt is evenly threaded into the limiting mounting frame and is distributed at both ends of the maintenance slot. The adjusting nozzle is fixedly connected to the limiting mounting frame by the second fixing bolt. The maintenance sealing plate seals the maintenance slot. The connecting fixing plate is fixedly connected to the bottom end of the limiting mounting frame. The third fixing bolt is evenly threaded into the connecting fixing plate. The limiting mounting plate is fixedly connected to the upper end of the limiting mounting frame. The power supply unit is disposed inside the limiting mounting frame.

[0007] Preferably, the power supply unit includes a power body, a rotating gear, a mounting frame, a motor, and a limiting and stabilizing gear. The motor is fixedly installed at the bottom center of the mounting frame. The rotating gear is rotatably engaged at the upper center of the mounting frame, and the drive end of the motor is fixedly connected to the bottom of the rotating gear. The power body is located at the upper center of the rotating gear. The limiting and stabilizing gear is uniformly rotated and engaged at the upper edge of the mounting frame, and the limiting and stabilizing gear meshes with the rotating gear.

[0008] Preferably, the power unit includes a battery pack, a sliding adjustment plate, a sliding limit slot, an electric push rod, a U-shaped fixed connecting plate, and a track limiting plate. The sliding limit slot is formed on the track limiting plate. The U-shaped fixed connecting plate is evenly fixedly installed at the bottom end of the track limiting plate. The electric push rod is symmetrically fixedly installed at the middle of the bottom end of the track limiting plate. The sliding adjustment plate is slidably engaged with the track limiting plate through the sliding limit slot. The front ends of the symmetrically distributed electric push rods are fixedly connected to the bottom ends of the sliding adjustment plate. The battery pack is fixedly installed at the middle of the upper end of the sliding adjustment plate.

[0009] Preferably, the mounting frame is fixedly installed inside the limiting mounting frame, and the connecting fixing plate is fixedly connected to the fixed connecting support plate by the third fixing bolt.

[0010] Preferably, there are four inspection slots and four inspection sealing plates, and six support frames, six protective covers and six forward impellers.

[0011] Preferably, the bottom end of the track limiting disk is fixedly connected to the upper end of the rotating gear disk, and four limiting and stabilizing gears are provided.

[0012] Preferably, a rotating adjusting chuck is rotatably engaged inside the edge of the limiting mounting plate, and a fixing mounting ring is fixedly installed on the outer end of the rotating adjusting chuck, with fixing mounting holes evenly distributed through the fixing mounting ring.

[0013] Preferably, the limiting mounting plate is threaded with a first fixing bolt, and the first fixing bolt is in contact with the upper end face of the rotating adjusting chuck.

[0014] The beneficial effects of this invention are:

[0015] I. This invention enables stable operation across media. In water, the electric system drives the rotation of each forward impeller, which is evenly distributed. By controlling the rotation and speed of the forward impellers at different locations, steering control can be achieved. After the rocket leaves the water, the fuel drive system quickly operates, ensuring stable operation of the rocket in the air. Furthermore, operating in water conserves fuel, ensuring sufficient fuel for the rocket's flight distance during in-flight separation. When battery pack maintenance and adjustment are required in the power supply section, an electric push rod drives a sliding adjustment plate along a sliding limit slot, moving the battery pack closer to the maintenance slot. This facilitates convenient inspection and replacement of the battery pack. The evenly distributed maintenance slots allow for convenient battery pack maintenance and replacement at various locations.

[0016] II. This invention features a dual-medium synergistic drive system. By combining the power supply from a fuel storage tank and a liquid oxygen storage tank with an electric system, it achieves seamless switching between high-pressure gas starting and liquid steady-state drive. This reduces the mass of the starting gas cylinder, increases the effective payload, and provides intelligent pressure control. Based on pressure sensors and flow matching algorithms installed inside the rocket, it dynamically adjusts the flow ratio between the regulating nozzle and the main nozzle to ensure stable combustion chamber pressure and avoid the combustion efficiency reduction caused by pressure fluctuations in traditional engines. It also offers cross-medium adaptability by supporting efficient operation in multiple environments, including underwater and air, through the synergy of electric and fuel-driven propulsion of the forward impeller. The combined design of the maintenance slot and maintenance sealing plate, along with the sliding disassembly structure of the battery pack, significantly improves the maintenance convenience of the battery pack and key components, reducing downtime. The protective support frame and fixed connection support plate design reduce redundant mass while ensuring strength. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a three-dimensional structural diagram of the main body from a frontal perspective in this invention;

[0019] Figure 2 This is a schematic diagram of the bottom structure of the main body in this invention;

[0020] Figure 3 This is a schematic diagram of the bottom structure of the fuel-driven system in this invention;

[0021] Figure 4 This is a schematic diagram of the fuel-driven system structure in this invention;

[0022] Figure 5 This is a schematic diagram of the bottom structure of the fuel-driven system in this invention;

[0023] Figure 6 This is a schematic diagram of the power system structure in this invention;

[0024] Figure 7 This is a schematic diagram of the limiting installation frame structure in this invention;

[0025] Figure 8 This is a schematic diagram of the power supply unit structure in this invention;

[0026] Figure 9 This is a schematic diagram of the main power structure in this invention.

[0027] In the diagram: 1-Electric system, 2-Fuel drive system, 3-Support frame, 4-Protective cover, 5-Forward impeller, 6-Fuel storage tank, 7-Fixed connection support plate, 8-Protective support frame, 9-Combustion chamber, 10-Adjusting nozzle, 11-Main nozzle, 12-Liquid oxygen storage tank, 13-First fixing bolt, 14-Limit mounting plate, 15-Power supply unit, 16-Fixed mounting hole, 17-Rotating adjusting chuck, 18-Fixed mounting ring, 19-Inspection sealing plate, 20-Second fixing bolt, 21-Third fixing bolt, 22-Inspection slot, 23-Connecting fixing plate, 24-Limit mounting frame, 25-Electric main body, 26-Rotating gear, 27-Mounting frame, 28-Motor, 29-Limit stabilizing gear, 30-Battery pack, 31-Sliding adjusting plate, 32-Sliding limit slot, 33-Electric push rod, 34-U-shaped fixed connection plate, 35-Rail limit plate. Detailed Implementation

[0028] Example 1

[0029] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present application.

[0030] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or devices.

[0031] The invention will be further described below with reference to the accompanying drawings.

[0032] like Figure 1-5As shown, the fuel-electric hybrid cross-medium rocket engine of the present invention includes an electric system 1, a fuel drive system 2, a support frame 3, a protective shield 4, and a forward impeller 5. The electric system 1 is located at the upper end of the fuel drive system 2. The support frame 3 is evenly distributed at the bottom end of the fuel drive system 2. The protective shield 4 is evenly fixedly installed at the bottom end of the support frame 3. The forward impeller 5 is rotatably installed at the bottom end of the support frame 3 and is located inside the protective shield 4. The fuel drive system 2 includes a fuel storage tank 6, a fixedly connected support plate 7, a protective support frame 8, a combustion chamber 9, an adjusting nozzle 10, a main nozzle 11, and a liquid oxygen storage tank 12. The combustion chamber 9 is fixedly installed on the protective support frame. Inside the bottom of the frame 8, a fixed connection support plate 7 is fixedly installed on the upper end of the protective support frame 8. Fuel storage tanks 6 and liquid oxygen storage tanks 12 are symmetrically distributed and fixedly installed on the fixed connection support plate 7. The bottom ends of fuel storage tanks 6 and liquid oxygen storage tanks 12 are fixedly connected to the combustion chamber 9 through valve bodies and pump bodies. The main nozzle 11 is evenly fixedly installed in the middle of the bottom end of the combustion chamber 9. The adjusting nozzle 10 is evenly arranged at the bottom edge of the combustion chamber 9, and the main nozzle 11 is located inside the adjusting nozzle 10. The material stored inside the fuel storage tanks 6 and liquid oxygen storage tanks 12 enters the interior of the combustion chamber 9 under the action of the pump and can achieve complete combustion.

[0033] like Figure 6-7 As shown, the power system 1 includes a limiting mounting plate 14, a power supply unit 15, a maintenance sealing plate 19, second fixing bolts 20, third fixing bolts 21, a maintenance slot 22, a connecting fixing plate 23, and a limiting mounting frame 24. The maintenance slots 22 are evenly distributed on the limiting mounting frame 24. The second fixing bolts 20 are evenly threaded into the limiting mounting frame 24, and are distributed at both ends of the maintenance slots 22. The adjusting nozzle 10 is fixedly connected to the limiting mounting plate 24 by the second fixing bolts 20. The inspection slot 22 is sealed and blocked by the inspection sealing plate 19 on the mounting frame 24. The connecting fixing plate 23 is fixedly connected to the bottom end of the limiting mounting frame 24. The third fixing bolt 21 is evenly threaded into the connecting fixing plate 23. The limiting mounting plate 14 is fixedly connected to the upper end of the limiting mounting frame 24. The power supply unit 15 is set inside the limiting mounting frame 24. The inspection sealing plate 19 and the inspection slot 22 are evenly distributed, which can facilitate the inspection and maintenance of the power supply unit 15 at different positions and angles.

[0034] like Figure 8-9As shown, the power supply unit 15 includes a power body 25, a rotating gear 26, a mounting frame 27, a motor 28, and a limiting and stabilizing gear 29. The motor 28 is fixedly installed at the bottom center of the mounting frame 27. The rotating gear 26 is rotatably engaged at the top center of the mounting frame 27, and the drive end of the motor 28 is fixedly connected to the bottom of the rotating gear 26. The power body 25 is located at the top center of the rotating gear 26. The limiting and stabilizing gear 29 is evenly rotated and engaged at the top edge of the mounting frame 27, and the limiting and stabilizing gear 29 meshes with the rotating gear 26. The power body 25 includes a battery pack 30, a sliding adjustment plate 31, a sliding limiting slot 32, an electric push rod 33, a U-shaped fixed connecting plate 34, and a track limiting plate 35. The sliding limiting slot 32 is formed on the track limiting plate 35, and the U-shaped fixed connecting plate 34 is evenly fixedly installed on the track limiting plate 35. At the bottom of the positioning plate 35, electric push rods 33 are symmetrically fixedly installed in the middle of the bottom of the track limiting plate 35. The sliding adjustment plate 31 is slidably engaged with the track limiting plate 35 through the sliding limiting groove 32. The front ends of the symmetrically distributed electric push rods 33 are fixedly connected to the bottom ends of the sliding adjustment plate 31. The battery pack 30 is fixedly installed in the middle of the upper end of the sliding adjustment plate 31. The starting motor 28 drives the rotating gear plate 26 to rotate at a predetermined angle, so that the side to be inspected rotates to the open inspection slot 22. The electric push rods 33 drive the sliding adjustment plate 31 to slide along the sliding limiting groove 32, so that the battery pack 30 moves closer to the inspection slot 22. This allows for convenient inspection and replacement of the battery pack 30. The inspection slots 22 are evenly distributed, allowing for convenient inspection and replacement of the battery pack 30 at different locations.

[0035] The mounting frame 27 is fixedly installed inside the limiting mounting frame 24. The connecting fixing plate 23 is fixedly connected to the fixed connecting support plate 7 by the third fixing bolt 21. There are four inspection slots 22 and four inspection sealing plates 19. There are six support frames 3, six protective covers 4 and six forward impellers 5. The bottom end of the track limiting plate 35 is fixedly connected to the upper end of the rotating gear plate 26. There are four limiting stabilizing gears 29. The limiting stabilizing gears 29 play an auxiliary role in stabilizing and limiting.

[0036] Working principle: During the start-up phase, high-pressure gas is delivered from the fuel storage tank 6 and the liquid oxygen storage tank 12 to the combustion chamber 9 through the valve body and pump body, driving the externally installed gas turbine for pre-pressurization to ensure rapid ignition. At this time, the externally installed pressure sensor and flow rate sensor monitor the data in real time and adjust the gas turbine output through the flow matching algorithm. After entering the steady state phase, the fuel and oxidizer continue to burn in the combustion chamber 9 and are ejected through the main nozzle 11 and the regulating nozzle 10 to generate stable thrust. The sensors installed inside the rocket continuously feed back pressure signals and dynamically adjust the pressure of the booster pump to maintain a constant pressure in the combustion chamber and avoid efficiency fluctuations. During the transition between media, when transitioning from underwater to air, the power system 1 drives the forward impeller 5 through the designed drive motor to provide low-speed stable thrust. After entering the air, the fuel drive system 2 takes over and generates high thrust through combustion. The two achieve seamless power switching, adapt to changes in media, and maximize the rocket's range. At the same time, it is easy to control when running underwater.

[0037] When the battery pack 30 in the power supply section 15 needs to be inspected and adjusted, the inspection sealing plate 19 on the corresponding side is removed. At this time, the inspection slot 22 at the corresponding position is exposed. Then, the motor 28 is started to drive the rotating gear plate 26 to rotate at a predetermined angle, so that the side to be inspected is rotated to the open inspection slot 22. Then, the electric push rod 33 at the bottom is started. The electric push rod 33 drives the sliding adjustment plate 31 to slide along the sliding limit slot 32, so that the battery pack 30 moves closer to the position of the inspection slot 22. This makes it convenient to inspect and replace the battery pack 30. Moreover, the inspection slots 22 are evenly distributed, and the battery pack 30 can be easily inspected and replaced at different positions, making it convenient to inspect and handle the battery pack 30 and the connected lines.

[0038] Example 2

[0039] Based on Example 1, such as Figure 6 As shown, a rotating adjusting chuck 17 is rotatably engaged inside the edge of the limiting mounting plate 14. A fixing mounting ring 18 is fixedly installed on the outer end of the rotating adjusting chuck 17. Fixing mounting holes 16 are evenly and uniformly opened through the fixing mounting ring 18. First fixing bolts 13 are evenly threaded into the limiting mounting plate 14, and the first fixing bolts 13 are pressed into contact with the upper end face of the rotating adjusting chuck 17.

[0040] In implementing this embodiment, the fixed mounting ring 18 and the fixed mounting hole 16 on the fixed mounting ring 18 allow the power system 1 to be conveniently fixed inside the rocket launcher. The rotating adjustment chuck 17 is rotatably mounted on the limiting mounting plate 14. After the power system 1 is fixed, the limiting mounting plate 14, the limiting mounting frame 24, and the power supply unit 15 can all be conveniently adjusted to rotate. After the angle is adjusted, the first fixing bolt 13 is used to fix the position of the limiting mounting plate 14 and the limiting mounting frame 24, making the overall installation, connection, use, and adjustment of the power system 1 convenient.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fuel-electric hybrid cross-medium rocket engine, comprising an electric system (1), a fuel drive system (2), a support frame (3), a protective shield (4), and a forward impeller (5), characterized in that: The power system (1) is located at the upper end of the fuel drive system (2), the support frame (3) is evenly arranged at the bottom end of the fuel drive system (2), the protective cover (4) is evenly fixedly installed at the bottom end of the support frame (3), the forward impeller (5) is rotatably installed at the bottom end of the support frame (3), and the forward impeller (5) is located inside the protective cover (4).

2. The fuel-electric hybrid cross-medium rocket engine according to claim 1, characterized in that: The fuel drive system (2) includes a fuel storage tank (6), a fixed connection support plate (7), a protective support frame (8), a combustion chamber (9), an adjusting nozzle (10), a main nozzle (11), and a liquid oxygen storage tank (12). The combustion chamber (9) is fixedly installed inside the bottom end of the protective support frame (8). The fixed connection support plate (7) is fixedly installed at the top end of the protective support frame (8). The fuel storage tank (6) and the liquid oxygen storage tank (12) are symmetrically distributed and fixedly installed on the fixed connection support plate (7). The bottom ends of the fuel storage tank (6) and the liquid oxygen storage tank (12) are fixedly connected to the combustion chamber (9) through a valve body and a pump body. The main nozzle (11) is uniformly fixedly installed in the middle of the bottom end of the combustion chamber (9). The adjusting nozzle (10) is uniformly arranged at the bottom edge of the combustion chamber (9), and the main nozzle (11) is located inside the adjusting nozzle (10).

3. The fuel-electric hybrid cross-medium rocket engine according to claim 2, characterized in that: The power system (1) includes a limiting mounting plate (14), a power supply unit (15), a maintenance sealing plate (19), a second fixing bolt (20), a third fixing bolt (21), a maintenance slot (22), a connecting fixing plate (23), and a limiting mounting frame (24). The maintenance slot (22) is evenly opened on the limiting mounting frame (24). The second fixing bolt (20) is evenly threaded into the limiting mounting frame (24), and the second fixing bolt (20) is distributed at both ends of the maintenance slot (22). The nozzle (10) is fixedly connected to the limiting mounting frame (24) by the second fixing bolt (20), and the inspection sealing plate (19) seals the inspection groove (22). The connecting fixing plate (23) is fixedly connected to the bottom end of the limiting mounting frame (24). The third fixing bolt (21) is evenly threaded into the connecting fixing plate (23). The limiting mounting plate (14) is fixedly connected to the upper end of the limiting mounting frame (24). The power supply unit (15) is located inside the limiting mounting frame (24).

4. The fuel-electric hybrid cross-medium rocket engine according to claim 3, characterized in that: The power supply unit (15) includes a power body (25), a rotating gear (26), a mounting frame (27), a motor (28), and a limiting and stabilizing gear (29). The motor (28) is fixedly installed at the bottom center of the mounting frame (27). The rotating gear (26) is rotatably engaged at the upper center of the mounting frame (27), and the drive end of the motor (28) is fixedly connected to the bottom of the rotating gear (26). The power body (25) is located at the upper center of the rotating gear (26). The limiting and stabilizing gear (29) rotates evenly and is engaged at the upper edge of the mounting frame (27), and the limiting and stabilizing gear (29) meshes with the rotating gear (26).

5. The fuel-electric hybrid cross-medium rocket engine according to claim 4, characterized in that: The power unit (25) includes a battery pack (30), a sliding adjustment plate (31), a sliding limit slot (32), an electric push rod (33), a U-shaped fixed connecting plate (34), and a track limiting plate (35). The sliding limit slot (32) is opened on the track limiting plate (35). The U-shaped fixed connecting plate (34) is evenly fixedly installed at the bottom end of the track limiting plate (35). The electric push rod (33) is symmetrically fixedly installed at the middle of the bottom end of the track limiting plate (35). The sliding adjustment plate (31) is slidably engaged with the track limiting plate (35) through the sliding limit slot (32). The front ends of the symmetrically distributed electric push rods (33) are fixedly connected to the bottom ends of the sliding adjustment plate (31). The battery pack (30) is fixedly installed at the middle of the upper end of the sliding adjustment plate (31).

6. The fuel-electric hybrid cross-medium rocket engine according to claim 5, characterized in that: The mounting frame (27) is fixedly installed inside the limiting mounting frame (24), and the connecting fixing plate (23) is fixedly connected to the fixed connecting support plate (7) by the third fixing bolt (21).

7. The fuel-electric hybrid cross-medium rocket engine according to claim 6, characterized in that: There are four inspection slots (22) and four inspection sealing plates (19), and six support frames (3), protective covers (4) and forward impellers (5).

8. The fuel-electric hybrid cross-medium rocket engine according to claim 7, characterized in that: The bottom end of the track limiting disk (35) is fixedly connected to the upper end of the rotating gear disk (26), and four limiting stabilizing gears (29) are provided.

9. The fuel-electric hybrid cross-medium rocket engine according to claim 8, characterized in that: The limiting mounting plate (14) is rotatably engaged with a rotating adjusting chuck (17) inside its edge. A fixing mounting ring (18) is fixedly installed on the outer end of the rotating adjusting chuck (17). Fixing mounting holes (16) are evenly opened through the fixing mounting ring (18).

10. The fuel-electric hybrid cross-medium rocket engine according to claim 9, characterized in that: The limiting mounting plate (14) is threaded with a first fixing bolt (13) evenly, and the first fixing bolt (13) is in contact with the upper end face of the rotating adjusting chuck (17).

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