A rotary detonation vector propulsion device based on inner column translation

Abstract

The application provides a rotating detonation vector propulsion device based on inner column translation, which comprises a combustion chamber head, a movable combustion chamber inner column, an extension arm and a tail nozzle. The combustion chamber head comprises an injection structure, a combustion chamber head linear ring plate, a combustion chamber head linear ring plate positioning boss, a combustion chamber head high-temperature-resistant sealing ring, a combustion chamber head self-lubricating shaft sleeve and a combustion chamber head rotary cover. The movable combustion chamber inner column comprises a movable combustion chamber inner column head, a movable combustion chamber inner column sliding cover and a movable combustion chamber inner column rear-end cylinder. The extension arm comprises an extension arm fixed body and an extension arm moving body. The tail nozzle is a plug-type nozzle, which comprises a plug-type nozzle outer ring and a plug-type nozzle center cone. The combustion chamber head rotary cover and the combustion chamber head linear ring plate are connected in a rotary pair mode through the combustion chamber head self-lubricating shaft sleeve, and can be driven to rotate by a motor. The movable combustion chamber inner column and the combustion chamber head rotary cover are connected in a moving pair mode through the movable combustion chamber inner column sliding cover and the combustion chamber head rotary cover inner column translation sliding channel, and can be driven to translate by the extension arm. During the operation of the device, the combustion chamber head rotary cover is driven to rotate by the motor, and the movable combustion chamber inner column is driven to translate by the extension arm, so that the movable combustion chamber inner column can translate in all directions in the combustion chamber, the rotating detonation wave intensity in the combustion chamber and the gas flow are non-uniform, and thus the rotating detonation engine generates a vector thrust. The application can be applied to the field of rotating detonation vector propulsion.

Description

Technical Field

[0001] This invention relates to the field of detonation propulsion and vector propulsion, specifically to a rotating detonation vector propulsion device based on the translation of an inner column. Background Technology

[0002] Rotary detonation engines are a new type of engine that generates thrust through rotating detonation combustion. Due to the potential advantages of detonation combustion, such as rapid energy release, self-pressurization, low entropy increase, and high thermal cycle efficiency, it has become a research hotspot in the field of aerospace propulsion.

[0003] Vector propulsion technology is an indispensable technology for advanced aircraft. Its core principle is to obtain additional control torque to adjust the flight attitude, which can reduce the takeoff and landing distance of the aircraft.

[0004] Traditional aerospace engines typically generate vector thrust by installing vectoring nozzles, but these nozzles suffer from drawbacks such as structural complexity and high control difficulty. Rotating detonation engines have various combustion chamber structures, including annular, cylindrical, and disc-shaped chambers. For annular rotating detonation combustion chambers, the inhomogeneity between the rotating detonation wave intensity and the gas flow within the combustion chamber can be created through internal column translation, thereby generating vector thrust. Therefore, this invention proposes a rotating detonation vector propulsion device based on internal column translation. This device enables rotating detonation engines to perform vector propulsion without introducing vectoring nozzles, which involve more complex structural design and control strategies. This simplifies the engine structure and is of great significance for the practical application of rotating detonation engines. Summary of the Invention

[0005] The technical problem to be solved:

[0006] To address the challenges of complex structures and high control difficulty associated with traditional engine vector propulsion nozzles, this invention proposes a rotary detonation vector propulsion device based on the translational movement of an inner column. By driving a telescopic arm and a combustion chamber head cap, the movable inner column of the combustion chamber can be made to translate, creating uneven intensity of the rotary detonation wave and gas flow within the combustion chamber, thereby generating vector thrust. This invention can be applied in fields such as detonation propulsion.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0008] A rotary detonation vector propulsion device based on the translation of an inner column includes a combustion chamber head, a movable inner column of the combustion chamber, a telescopic arm, and a tail nozzle.

[0009] The combustion chamber head is located at the front of the combustion chamber and is coaxially mounted with the combustion chamber. It includes an injection structure, a combustion chamber head straight ring plate, a positioning boss for the combustion chamber head straight ring plate, a high-temperature resistant sealing ring for the combustion chamber head, a self-lubricating bushing for the combustion chamber head, and a combustion chamber head cap. The injection structure can inject and mix the oxidizer and fuel using methods such as circumferential-circumferential or circumferential-orifice injection. The combustion chamber head straight ring plate is located in front of the wall at the inlet of the injection structure and is coaxial with the combustion chamber. The inner wall surface of the combustion chamber head straight ring plate mates with the outer wall surface of the combustion chamber head self-lubricating bushing. The thickness L1 of the combustion chamber head straight ring plate should satisfy the geometric relationship: L1 = αL0, where α is the thickness coefficient of the combustion chamber head straight ring plate, ranging from 0.8 to 1.2, and L0 is the outer ring thickness of the combustion chamber head. The radius R1 of the outer wall surface of the combustion chamber head straight ring plate should satisfy the geometric relationship: R1 = β(R 外 -s), where R 外β is the radius of the inner wall of the outer ring of the combustion chamber, β is the radius coefficient of the outer wall of the straight ring plate of the combustion chamber head, with a value ranging from 0.75 to 0.85, s is the distance from the inlet of the injection structure of the combustion chamber head near the center of the combustion chamber to the inner wall of the outer ring of the combustion chamber, and the height L2 of the straight ring plate of the combustion chamber head ranges from 15 to 20 cm; the positioning boss of the straight ring plate of the combustion chamber head is located behind the straight ring plate of the combustion chamber head, and positions the rear end of the self-lubricating bushing of the combustion chamber head. The front wall of the positioning boss of the straight ring plate of the combustion chamber head is flush with the plane where the injection structure inlet is located. The rear wall surface of the positioning boss on the straight ring plate of the combustion chamber head is flush with the plane where the injection structure outlet is located. The height of the positioning boss on the straight ring plate of the combustion chamber head is L3, and L3 should satisfy the geometric relationship: L3=γL2, where γ is the height coefficient of the positioning boss on the straight ring plate of the combustion chamber head, with a value range of 1 / 4 to 1 / 3. The high-temperature resistant sealing ring of the combustion chamber head is located at the center of the positioning boss on the straight ring plate of the combustion chamber head, and is used to seal the gap between the positioning boss on the straight ring plate of the combustion chamber head and the outer wall surface of the straight ring plate of the combustion chamber head cap, to prevent gas leakage and extend the combustion chamber head. The self-lubricating bushing has a service life in which the cross-sectional length L4 of the high-temperature resistant sealing ring at the combustion chamber head ranges from 0.7 to 1.0 cm, and the cross-sectional width L5 ranges from 0.4 to 0.6 cm. The self-lubricating bushing at the combustion chamber head is located in front of the wall at the inlet of the injection structure and is coaxial with the combustion chamber. The outer wall surface of the self-lubricating bushing mates with the inner wall surface of the straight ring plate at the combustion chamber head, and the inner wall surface of the self-lubricating bushing mates with the outer wall surface of the straight ring plate at the combustion chamber head cap. The rear end of the self-lubricating bushing relies on the combustion chamber head... The combustion chamber head is positioned by a positioning boss on a straight ring plate. The front end of the combustion chamber head self-lubricating bushing is also positioned by the positioning boss on the straight ring plate of the combustion chamber head cap. The combustion chamber head self-lubricating bushing allows the combustion chamber head cap to rotate relative to the combustion chamber head straight ring plate. It is simpler and more resistant to harsh working conditions than a bearing structure. The length of the combustion chamber head self-lubricating bushing is L2, and the thickness L6 of the combustion chamber head self-lubricating bushing should satisfy the geometric relationship: L6=L3+δ, where δ is the machining allowance for the thickness of the combustion chamber head self-lubricating bushing, and its value ranges from 0.2 to 0.25cm; The combustion chamber head cap is located in front of the combustion chamber head self-lubricating bushing and is coaxial with the combustion chamber. It includes a combustion chamber head cap straight ring plate, a combustion chamber head cap straight ring plate positioning boss, a combustion chamber head cap open annular mounting edge, and a combustion chamber head cap inner column translation slide; The combustion chamber head cap straight ring plate is located inside the combustion chamber head straight ring plate and is coaxially mounted with the combustion chamber head straight ring plate. The outer wall radius R2 of the combustion chamber head cap straight ring plate should satisfy the geometric relationship: R2=R1-L1-L6. The outer wall surface of the combustion chamber head cap straight ring plate mates with the inner wall surface of the combustion chamber head self-lubricating bushing; The combustion chamber head cap straight ring plate positioning boss... The positioning boss is located in front of the self-lubricating bushing of the combustion chamber head, positioning the front end of the self-lubricating bushing of the combustion chamber head. The height and width of the positioning boss of the straight ring plate of the combustion chamber head cap are the same as those of the positioning boss of the straight ring plate of the combustion chamber head cap. The open annular mounting edge of the combustion chamber head cap is located in front of the positioning boss of the straight ring plate of the combustion chamber head cap. The center of the ring passes through the central axis of the combustion chamber. The radius of the outer wall of the open annular mounting edge of the combustion chamber head cap is R2. The thickness L7 of the open annular mounting edge of the combustion chamber head cap should satisfy the geometric relationship: L7=εL1, where ε is the thickness coefficient of the open annular mounting edge of the combustion chamber head cap, with a value range of... The value is 0.75 to 1.25. The open annular mounting edge of the combustion chamber head cap is in the shape of a "()" with a through opening in the middle. The width L8 of the through opening in the middle of the open annular mounting edge of the combustion chamber head cap should satisfy the geometric relationship: L8 = (1 + η)L9, where η is the width margin coefficient of the through opening in the middle of the open annular mounting edge of the combustion chamber head cap, with a value range of 0.05 to 0.10, and L9 is the distance between the non-positioning surfaces of the positioning bosses of the inner column translational slide of the combustion chamber head cap; the inner column translational slide of the combustion chamber head cap is located at the through opening in the middle of the open annular mounting edge of the combustion chamber head cap, including the inner column translational slide of the combustion chamber head cap. The combustion chamber head cap inner column translational slide includes a hollow arc-shaped slide, a positioning boss, and a high-temperature resistant sealing ring. The hollow arc-shaped slide of the combustion chamber head cap inner column translational slide is located at the central opening of the open annular mounting edge of the combustion chamber head cap, extending in a straight line from one end to the other, and mates with the movable combustion chamber inner column slide. The arc angle θ1 of the hollow arc-shaped slide of the combustion chamber head cap inner column translational slide ranges from 100° to 130°. A straight groove is formed in the middle of the hollow arc-shaped slide of the combustion chamber head cap inner column translational slide, and the width L of the straight groove in the middle of the hollow arc-shaped slide of the combustion chamber head cap inner column translational slide is also included. 10 The geometric relationship should be satisfied: L 10 = (1+ξ)·2R 内 Wherein, ξ is the width margin coefficient of the straight groove in the middle of the hollow arc surface slide of the inner column translation slide of the combustion chamber head screw cap, and its value ranges from 0.05 to 0.10, R 内The radius of the cylinder at the rear end of the movable combustion chamber inner column is L, and the length of the straight line at both ends of the straight groove in the middle of the hollow arc surface slide of the inner column of the combustion chamber head screw cap is L. 11 The geometric relationship should be satisfied: L 11 =2L max , where L max The distance the movable combustion chamber inner column moves relative to the combustion chamber central axis is when the minimum throat distance of the tail nozzle decreases to 35% of the position where the movable combustion chamber inner column is not deviated from the center during the translational movement of the movable combustion chamber inner column; the positioning boss of the combustion chamber head cap inner column translational slide is located on both sides of the hollow arc surface slide of the combustion chamber head cap inner column translational slide, and its direction is parallel to the hollow arc surface slide of the combustion chamber head cap inner column translational slide. The positioning boss of the combustion chamber head cap inner column translational slide is non-fixed. The distance between the two surfaces is L9. The positioning surface of the positioning boss of the combustion chamber head cap inner column translation slide is engaged with the bottom of the movable combustion chamber inner column slide cover to prevent the movable combustion chamber inner column from tilting or shaking. The high-temperature resistant sealing ring of the combustion chamber head cap inner column translation slide surrounds the straight groove in the middle of the hollow arc surface slide of the combustion chamber head cap inner column translation slide. The distance L between the high-temperature resistant sealing ring and the straight groove in the middle of the hollow arc surface slide of the combustion chamber head cap inner column translation slide is... 12 The value range is 0.4~0.8cm, and the width L of the high-temperature resistant sealing ring of the inner column translation slide of the combustion chamber head cap is... 13 The value ranges from 0.6 to 1.0 cm, and it serves a sealing function to prevent gas leakage during the translation of the movable combustion chamber column.

[0010] The movable combustion chamber inner column is installed parallel to the combustion chamber and includes a movable combustion chamber inner column head, a movable combustion chamber inner column sliding cover, and a rear cylindrical section of the movable combustion chamber inner column. The movable combustion chamber inner column head, when pressed, presses against the inner column of the combustion chamber head cap's inner column translational slide. The movable combustion chamber inner column head is fixedly connected to the telescopic arm moving body and is driven to translate by the telescopic arm. The movable combustion chamber inner column sliding cover is an arc surface that mates with the hollow arc surface slide of the inner column translational slide of the combustion chamber head cap. Its lower end mates with the positioning boss of the inner column translational slide of the combustion chamber head cap. The angle θ2 of the arc surface of the movable combustion chamber inner column sliding cover should satisfy the geometric relationship: θ2=κθ1, where κ is the angle coefficient of the arc surface of the movable combustion chamber inner column sliding cover, with a value ranging from 0.7 to 0.9, and the length L of the arc surface of the movable combustion chamber inner column sliding cover is... 14 The geometric relationship should be satisfied: L 14 = (2+v)·(0.5L) 10 +L 11 +L 12 +L 13), where v is the length margin coefficient of the arc surface of the movable combustion chamber inner column sliding cover, and the value range is 0.05 to 0.10; the rear end cylinder of the movable combustion chamber inner column is located on the rear side of the movable combustion chamber inner column, and is fixedly connected to the movable combustion chamber inner column sliding cover, with its direction parallel to the central axis of the combustion chamber.

[0011] The telescopic arm is located in front of the combustion chamber head cap and includes a fixed telescopic arm body and a movable telescopic arm body. The fixed telescopic arm body is symmetrically fixed across the upper two ends of the through opening in the middle of the open annular mounting edge of the combustion chamber head cap; the movable telescopic arm body is fixedly connected to the head of the movable combustion chamber inner column; the telescopic arm can be driven by a telescopic cylinder or a motor, etc., so that the movable telescopic arm body drives the movable combustion chamber inner column to move horizontally.

[0012] The tail nozzle is located at the rear of the combustion chamber and is a plug-type nozzle, including an outer ring and a central cone. The tail nozzle structure limits the maximum translational distance L of the movable combustion chamber's inner column. max The maximum translational distance L of the movable combustion chamber column max The distance the movable combustion chamber inner column moves relative to the central axis of the combustion chamber during the translation process of the movable combustion chamber inner column, when the minimum throat distance of the tail nozzle decreases to 35% of the state where the movable combustion chamber inner column is not deviated from the center position.

[0013] Beneficial effects:

[0014] The present invention provides a rotary detonation vector propulsion device based on the translation of an inner column. By causing the translation of the column inside the combustion chamber, a non-uniformity in the intensity of the rotary detonation wave and the gas flow is created within the combustion chamber. This allows for the generation of vector thrust without introducing vector nozzles, which suffer from structural complexity and high control difficulty. The present invention can be used in fields such as rotary detonation vector propulsion. Attached Figure Description

[0015] Figure 1 This is an isometric 1 / 4 sectional view of a rotating detonation vector propulsion device based on the translation of an inner column according to the present invention;

[0016] Figure 2 This is a 1 / 4 axial cross-sectional view of the combustion chamber head cap of a rotary detonation vector propulsion device based on the translation of an inner column according to the present invention.

[0017] Figure 3 This is a cross-sectional schematic diagram of a rotating detonation vector propulsion device based on the translation of an inner column according to the present invention, in the state where the inner column is not translated.

[0018] Figure 4 This is a cross-sectional schematic diagram of a rotary detonation vector propulsion device based on the translation of an inner column according to the present invention, in the state of the inner column translation to its maximum.

[0019] Figure 5This is a top view of the combustion chamber head cover of a rotary detonation vector propulsion device based on the translation of an inner column according to the present invention.

[0020] Figure 6 This is a cross-sectional view of the combustion chamber head cap of a rotary detonation vector propulsion device based on the translation of an inner column according to the present invention, along the AA direction;

[0021] Figure 7 This is a cross-sectional view of the combustion chamber head cap along the BB direction of a rotary detonation vector propulsion device based on the translation of an inner column according to the present invention.

[0022] Figure 8 This is a front view of the movable combustion chamber column of a rotating detonation vector propulsion device based on the translation of an inner column according to the present invention.

[0023] Figure 9 This is a cross-sectional view of the movable combustion chamber column along the CC direction of a rotating detonation vector propulsion device based on the translation of an inner column according to the present invention.

[0024] Figure 10 This is a rear view of the working state of a rotary detonation vector propulsion device based on the translation of an inner column according to the present invention.

[0025] Among them, 1 is the combustion chamber head, 2 is the movable combustion chamber inner column, 3 is the telescopic arm, 4 is the tail nozzle, 11 is the injection structure, 12 is the combustion chamber head linear ring plate, 13 is the combustion chamber head linear ring plate positioning boss, 14 is the combustion chamber head high-temperature resistant sealing ring, 15 is the combustion chamber head self-lubricating bushing, 16 is the combustion chamber head cap, 161 is the combustion chamber head cap linear ring plate, 162 is the combustion chamber head cap linear ring plate positioning boss, 163 is the combustion chamber head cap open annular mounting edge, and 164 is the combustion chamber head cap open annular mounting edge. 1641 is the hollow arc surface slide of the inner column of the combustion chamber head cap, 1642 is the positioning boss of the inner column of the combustion chamber head cap, 1643 is the high temperature resistant sealing ring of the inner column of the combustion chamber head cap, 21 is the head of the movable inner column of the combustion chamber, 22 is the sliding cover of the movable inner column of the combustion chamber, 23 is the rear end cylinder of the movable inner column of the combustion chamber, 31 is the telescopic arm fixing body, 32 is the telescopic arm moving body, 41 is the outer ring of the plug nozzle, and 42 is the center cone of the plug nozzle. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific implementation process.

[0027] See Figure 1 and Figure 2A rotary detonation vector propulsion device based on the translational motion of an inner column is disclosed, comprising a combustion chamber head 1, a movable inner column 2, a telescopic arm 3, and a tail nozzle 4. The combustion chamber head 1 includes an injection structure 11, a combustion chamber head linear ring plate 12, a combustion chamber head linear ring plate positioning boss 13, a combustion chamber head high-temperature resistant sealing ring 14, a combustion chamber head self-lubricating bushing 15, and a combustion chamber head cap 16. The movable inner column 2 includes a movable inner column head 21, a movable inner column sliding cover 22, and a movable inner column rear end cylinder 23. The telescopic arm 3 includes a telescopic arm fixed body 31 and a telescopic arm movable body 32. The tail nozzle 4 is a plug-type nozzle, including a plug-type nozzle outer ring 41 and a plug-type nozzle central cone 42. The combustion chamber head cap 16 and the combustion chamber head linear ring plate 12 are engaged in a rotating pair via the combustion chamber head self-lubricating bushing 15, and can be driven to rotate by a motor. The movable combustion chamber inner column 2 and the combustion chamber head cap 16 are engaged in a sliding pair via the movable combustion chamber inner column sliding cover 22 and the combustion chamber head cap inner column translational slide 164, and can be driven to translate by a telescopic arm. By driving the combustion chamber head cap 16 to rotate and the telescopic arm to translate the movable combustion chamber inner column 2, the movable combustion chamber inner column 2 can translate in all directions within the combustion chamber. The high-temperature resistant sealing ring 14 of the combustion chamber head and the high-temperature resistant sealing ring 1643 of the translational slide of the combustion chamber head cap inner column provide a sealing function to prevent gas leakage.

[0028] Example:

[0029] See Figure 1 , Figure 2 and Figure 10 The motor drives the combustion chamber head cap 16 to rotate at an angular velocity of approximately 5° / s. The telescopic arm drives the movable combustion chamber inner column 2 to translate at a speed of 0.0025 m / s. After 6 seconds, the movable combustion chamber inner column translates and changes its position within the combustion chamber. At this time, the intensity of the rotating detonation wave within the combustion chamber is uneven with the gas flow, thereby generating vector thrust in the rotating detonation engine.

[0030] The specific embodiments of the present invention have been described in detail above with reference to the accompanying drawings and specific implementation processes. However, the present invention is not limited to the above embodiments. Those skilled in the art can make various adjustments and optimizations to the above methods without departing from the basic principles of the present invention.

Claims

1. A rotary detonation vector propulsion device based on the translational motion of an inner column, comprising a combustion chamber head, a movable inner column of the combustion chamber, a telescopic arm, and a tail nozzle, characterized in that, When the device is working, the motor drives the combustion chamber head cap to rotate and the telescopic arm drives the movable combustion chamber inner column to translate, so that the movable combustion chamber inner column can translate in all directions in the combustion chamber, causing uneven intensity of the rotating detonation wave and gas flow in the combustion chamber, thereby generating vector thrust in the rotating detonation engine.

2. The rotary detonation vector propulsion device based on the translation of an inner column according to claim 1, characterized in that, The combustion chamber head is located on the front side of the combustion chamber and is coaxially installed with the combustion chamber. It includes an injection structure, a combustion chamber head linear ring plate, a combustion chamber head linear ring plate positioning boss, a combustion chamber head high-temperature resistant sealing ring, a combustion chamber head self-lubricating bushing, and a combustion chamber head cap. The injection structure can inject and mix oxidizer and fuel using methods such as circumferential-circumferential or circumferential-orifice injection. The combustion chamber head straight ring plate is located in front of the wall at the inlet of the injection structure and is coaxial with the combustion chamber. The inner wall surface of the combustion chamber head straight ring plate mates with the outer wall surface of the combustion chamber head self-lubricating bushing. The positioning boss of the combustion chamber head straight ring plate is located behind the combustion chamber head straight ring plate and positions the rear end of the combustion chamber head self-lubricating bushing. The high-temperature resistant sealing ring of the combustion chamber head is located at the center of the positioning boss of the combustion chamber head straight ring plate and is used to seal the gap between the positioning boss of the combustion chamber head straight ring plate and the outer wall surface of the combustion chamber head capping straight ring plate to prevent gas leakage and prolong the self-lubrication of the combustion chamber head. The working life of the bushing; the self-lubricating bushing of the combustion chamber head is located in front of the wall at the inlet of the injection structure and is coaxial with the combustion chamber. The outer wall surface of the self-lubricating bushing of the combustion chamber head mates with the inner wall surface of the straight ring plate of the combustion chamber head, and the inner wall surface of the self-lubricating bushing of the combustion chamber head mates with the outer wall surface of the straight ring plate of the combustion chamber head cap. The rear end of the self-lubricating bushing of the combustion chamber head is positioned by the positioning boss of the straight ring plate of the combustion chamber head, and the front end of the self-lubricating bushing of the combustion chamber head is positioned by the positioning boss of the straight ring plate of the combustion chamber head cap. The self-lubricating bushing of the combustion chamber head can allow the combustion chamber head cap to rotate relative to the straight ring plate of the combustion chamber head. The combustion chamber head cap is located in front of the self-lubricating bushing of the combustion chamber head and is coaxial with the combustion chamber.

3. A rotary detonation vector propulsion device based on the translation of an inner column according to claim 1 or 2, characterized in that, The combustion chamber head cap includes a combustion chamber head cap straight ring plate, a combustion chamber head cap straight ring plate positioning boss, a combustion chamber head cap open annular mounting edge, and a combustion chamber head cap inner column translation slide; the combustion chamber head cap straight ring plate is located inside the combustion chamber head straight ring plate and is coaxially installed with the combustion chamber head straight ring plate, and the outer wall surface of the combustion chamber head cap straight ring plate mates with the inner wall surface of the combustion chamber head self-lubricating bushing; the combustion chamber head cap straight ring plate positioning boss is located in front of the combustion chamber head self-lubricating bushing and positions the front end of the combustion chamber head self-lubricating bushing. The open annular mounting edge of the combustion chamber head cap is located in front of the positioning boss of the straight ring plate of the combustion chamber head cap. The center of the ring passes through the central axis of the combustion chamber and is in the shape of "()" with a through opening in the middle. The inner column translation slide of the combustion chamber head cap is located at the through opening in the middle of the open annular mounting edge of the combustion chamber head cap.

4. A rotary detonation vector propulsion device based on the translation of an inner column according to claim 1, 2, or 3, characterized in that, The combustion chamber head cap inner column translation slide includes a hollow arc-shaped slide, a positioning boss, and a high-temperature resistant sealing ring. The hollow arc-shaped slide is located at the center of the open annular mounting edge of the combustion chamber head cap, extending in a straight line from one end to the other, and mates with the movable combustion chamber inner column slide. A straight groove is provided in the middle of the slide. The positioning bosses are located on both sides of the hollow arc surface slide of the inner column translation slide of the combustion chamber head cap, and their direction is parallel to the hollow arc surface slide of the inner column translation slide of the combustion chamber head cap. The positioning surface of the positioning bosses of the inner column translation slide of the combustion chamber head cap mates with the bottom of the movable inner column slide cover to prevent the movable inner column of the combustion chamber from tilting or shaking. The high-temperature resistant sealing ring of the inner column translation slide of the combustion chamber head cap surrounds the straight groove in the middle of the hollow arc surface slide of the inner column translation slide of the combustion chamber head cap, and plays a sealing role to prevent gas leakage during the translation of the movable inner column of the combustion chamber.

5. A rotary detonation vector propulsion device based on the translation of an inner column according to claim 1, characterized in that, The movable combustion chamber inner column is installed parallel to the combustion chamber and includes a movable combustion chamber inner column head, a movable combustion chamber inner column sliding cover, and a movable combustion chamber inner column rear end cylinder. The movable combustion chamber inner column head is pressed to press the movable combustion chamber inner column against the translational slide of the inner column of the combustion chamber head cap. The movable combustion chamber inner column head is fixedly connected to the telescopic arm moving body and is driven to translate by the telescopic arm. The movable combustion chamber inner column sliding cover is an arc surface that mates with the hollow arc surface slide of the translational slide of the inner column of the combustion chamber head cap, and its lower end mates with the positioning boss positioning surface of the translational slide of the inner column of the combustion chamber head cap. The movable combustion chamber inner column rear end cylinder is located on the rear side of the movable combustion chamber inner column, fixedly connected to the movable combustion chamber inner column sliding cover, and its direction is parallel to the central axis of the combustion chamber.

6. A rotary detonation vector propulsion device based on the translation of an inner column according to claim 1, characterized in that, The telescopic arm is located in front of the combustion chamber head cap and includes a fixed telescopic arm body and a movable telescopic arm body. The fixed telescopic arm body is symmetrically fixed across the upper two ends of the through opening in the middle of the open annular mounting edge of the combustion chamber head cap. The movable telescopic arm body is fixedly connected to the head of the movable combustion chamber inner column. The telescopic arm can be driven by a telescopic cylinder or a motor, so that the movable telescopic arm body drives the movable combustion chamber inner column to move horizontally.

7. A rotary detonation vector propulsion device based on the translation of an inner column according to claim 1, characterized in that, The tail nozzle is located at the rear of the combustion chamber and is a plug-type nozzle, including a plug-type nozzle outer ring and a plug-type nozzle central cone; the tail nozzle structure limits the maximum translational distance of the movable combustion chamber inner column.

Images