CN114810414B - Vector adjustment spray pipe and self-adaptive variable cycle engine - Google Patents

Abstract

The application provides a vector adjustment spray pipe and a self-adaptive variable cycle engine, wherein the vector adjustment spray pipe comprises: a force application cylinder (1), wherein the force application cylinder (1) is cylindrical; an outer casing (2), wherein the outer casing (2) is arranged on the radial outer side of the stress application cylinder (1), and a part of outer duct (100) is defined between the stress application cylinder (1) and the outer casing (2); the force-bearing ring (3), the force-bearing ring (3) is provided with a hole (31), the hole (31) can enable air flow to flow in the outer duct (100) to the tail nozzle of the vector adjustment spray pipe, and the force-bearing cylinder (1) and the outer casing (2) are connected through the force-bearing ring (3); and a vectoring mechanism connected to the outer casing (2) capable of contracting, expanding or vectoring the vectoring nozzle.

Description

Vector adjustment nozzle and adaptive variable cycle engine

Technical field

This application belongs to the field of aero-engines, and particularly relates to a vector-adjusted nozzle and an adaptive variable-cycle engine.

Background technique

Variable cycle propulsion aero engines have many advantages over traditional fixed cycle aero engines. With the continuous improvement of aero-engine design level, engine cycles and structures that meet the requirements of variable cycle are constantly proposed and evolved, and variable-cycle propulsion aero engines are gradually used to power main combat aircraft.

Compared with the variable cycle engine, the adaptive variable cycle engine adds an outer bypass (also called the third bypass) on the basis of the double outer bypass variable cycle engine. The added outer bypass can further improve the change of the engine bypass ratio. range, optimize the comprehensive performance of the engine within the envelope, reduce overflow resistance, and also solve the problem of boundary layer separation at the air inlet. The air flow in the outer duct is less pressurized, has lower temperature and sufficient flow. It is an ideal cold source and does not interfere with the work of the core engine. It is suitable for providing sufficient cooling capacity and can provide effective cooling for laser weapons, aircraft bodies, etc. , enhance the stealth performance of the aircraft.

Fighters must not only have high-altitude and high-speed performance, but also have maneuverability, agility and stealth performance. The adaptive variable-cycle engine with vector-adjusted nozzles can meet the performance requirements of fighter jets such as conventional maneuverability, post-stall maneuverability, agility, short take-off and landing, supersonic cruise, and stealth.

Compared with the conventional turbofan engine, the adaptive variable cycle engine has an increased outer duct, which leads to an increase in the number of casing layers, which brings about many assembly structure design issues. For example, the exhaust port of the outer duct is located in the annular opening surrounded by the outer adjusting piece and the inner expansion piece of the vector adjustment nozzle. Compared with the double outer duct variable cycle engine, the adaptive variable cycle engine has an outer duct. In order to ensure the sealing of the outer duct, as well as strict requirements such as spatial structural layout, unit assembly structure, weight, adjustment performance, stealth performance, and reliability, there is an urgent need to improve the vector adjustment nozzle.

Contents of the invention

The purpose of this application is to propose a vector-adjustable nozzle, which is provided with an external duct on the basis of enabling the nozzle to be adjusted.

This application proposes a vector adjustment nozzle, which includes:

A booster cylinder, the booster cylinder is cylindrical;

An outer casing, the outer casing is arranged radially outside the boosting cylinder, and a portion of the outer duct is defined between the boosting cylinder and the outer casing;

A force-bearing ring, the force-bearing ring is provided with a hole, the hole enables the airflow to flow in the outer duct to the tail nozzle of the vector adjustment nozzle, and the booster cylinder and the outer casing pass through The load-bearing ring is connected;

A vector adjustment mechanism, the vector adjustment mechanism is connected to the outer casing, and the vector adjustment mechanism can make the vector adjustment nozzle shrink, expand or vector deflect;

a sealing cover, the sealing cover is disposed radially outside the vector adjustment mechanism, and the radially inner side of the sealing cover defines part of the outer duct; and

An outer adjusting piece is arranged on the radially outer side of the vector adjustment mechanism, and the radial inner side of the outer adjusting piece defines part of the outer duct.

In at least one possible implementation, the force-bearing ring includes a tapered section that is tapered in a direction extending from the front end to the tail end of the force-bearing ring.

In at least one possible implementation, the tapered section forms an included angle of 30 to 45 degrees with the gas flow direction.

In at least one possible implementation, the force-bearing ring includes a channel structure, the opening of the channel structure faces the boosting cylinder, and the boosting cylinder is partially embedded in the electric channel structure.

In at least one possible embodiment, the channel structure 32 includes two side walls and a bottom wall. The two side walls radially position the boosting cylinder, and the bottom wall radially positions the boosting cylinder. The force cylinder is positioned axially.

In at least one possible implementation, the bottom wall is provided with a mounting hole for connecting the force-bearing ring and the force-increasing cylinder.

In at least one possible implementation, the boosting cylinder includes an elastic portion located at an end of the boosting cylinder, and the elastic portion includes an annular structure with a U-shaped axial cross-section.

In at least one possible implementation, the edge of the tail nozzle of the vector adjustment nozzle is serrated.

In at least one possible embodiment, the sealing cover includes a cone-shaped cylinder.

This application also proposes an adaptive variable cycle engine, which includes the vector adjustment nozzle described in any one of the above technical solutions.

By adopting the above technical solution, an external duct with a reasonable spatial structure and layout is provided in the vector adjustment nozzle, thereby improving engine performance.

Description of drawings

Figure 1 shows a schematic structural diagram of a vector adjustment nozzle according to an embodiment of the present application.

Figure 2 shows a half-section schematic diagram of a vector adjustment nozzle according to an embodiment of the present application.

Figure 3 shows a schematic structural diagram of a partially removed sealing cover of a vector adjustment nozzle according to an embodiment of the present application.

4 to 7 show schematic diagrams of the internal structure of a vector adjustment nozzle according to an embodiment of the present application.

Figure 8 shows a schematic cross-sectional structural diagram of a vector adjustment nozzle according to an embodiment of the present application.

Figure 9 shows a schematic structural diagram of the load-bearing ring of the vector adjustment nozzle according to an embodiment of the present application.

Figure 10 shows a half-section schematic diagram of a vector adjustment nozzle according to an embodiment of the present application.

Explanation of reference signs

1 afterburner cylinder

2 outer receiver

3 Bearing ring 31 hole 32 groove structure 321 side wall 322 bottom wall 33 tapered section

4 Throat adjustment mechanism 41 Throat actuator 411 Throat actuator body 412 Throat actuator piston rod

42 Convergence adjustment piece connection assembly 421 Convergence adjustment piece first link 422 Convergence adjustment piece second link

43 Convergence adjustment piece 44 Convergence sealing piece

5 nozzle adjustment mechanism 51 nozzle actuator 511 nozzle actuator body 512 nozzle actuator piston rod

52 nozzle transmission assembly 521 deflection ring 522 deflection ring support part 523 pull rod 524 expansion bracket

53 expansion adjustment piece 54 expansion sealing piece

55 expansion piece connection component 551 expansion piece first connecting rod 552 expansion piece second connecting rod 553 expansion piece third connecting rod 554 expansion piece fourth connecting rod 56 sealing piece pressing piece

6Sealing cover 7External adjustment piece

100 outer duct

A axial direction C circumferential direction.

Detailed ways

In order to more clearly explain the above objects, features and advantages of the present application, specific implementation modes of the present application are described in detail in this section with reference to the accompanying drawings. In addition to the various implementations described in this section, the present application can also be implemented in other different ways. Without violating the spirit of the present application, those skilled in the art can make corresponding improvements, modifications and replacements. Therefore, the present application It is not limited to the specific embodiments disclosed in this section. The scope of protection of this application shall be determined by the claims.

As shown in Figures 1 to 10, this application proposes a vector adjustment nozzle. The vector adjustment nozzle includes a booster cylinder 1, an outer casing 2, a load-bearing ring 3, a vector adjustment mechanism, a sealing cover 6 and an external adjustment Film 7. The vector adjustment mechanism includes a throat adjustment mechanism 4 and a nozzle adjustment mechanism 5 .

The vector adjustment nozzle can be used in the adaptive variable cycle engine. Compared with the variable cycle engine, the adaptive variable cycle engine adds an outer bypass (also called the third bypass) on the basis of the double outer bypass variable cycle engine. , the increased external bypass can further increase the variation range of the engine bypass ratio, optimize the comprehensive performance of the engine within the envelope, reduce overflow resistance, and also solve the problem of boundary layer separation at the air inlet. The airflow in the outer duct can flow through the vector adjustment mechanism, thereby reducing the infrared characteristics of the vector adjustment nozzle.

As shown in Figures 2, 8 and 10, the boosting cylinder 1 is cylindrical. The boosting cylinder 1 includes an elastic part 11. The elastic part 11 may include a U-shaped axial section (or cross section). ring structure. The elastic part 11 can reduce vibration, give the boosting cylinder 1 a certain degree of axial stretchability, and adjust axial deformation. The elastic part 11 may be located at the end of the boosting cylinder 1 , such as the tail end.

As shown in Figures 1, 2 and 10, the outer casing 2 and the boosting cylinder 1 are connected through a load-bearing ring 3. The outer casing 2 is arranged on the radial outside of the boosting cylinder 1. The boosting cylinder 1 The outer receiver 2 defines a part of the outer duct 100 (also called the third duct). Since the outer duct 100 is provided and the outer duct 100 needs to be sealed, the outer casing 2 serves as a load-bearing casing for installing the throat adjusting mechanism 4 and the nozzle adjusting mechanism 5 . Through the load-bearing ring 3, the weight of the throat adjustment mechanism 4 and the nozzle adjustment mechanism 5 is borne by the outer casing 2 as the load-bearing casing.

As shown in Figures 2 and 5 to 10, the front end of the load-bearing ring 3 can be connected to the outer casing 2 through a flange, and the rear end of the load-bearing ring 3 can be connected to the booster cylinder 1. The load-bearing ring 3 includes a tapered section 33, which is tapered in the direction extending from the front end to the tail end (ie, the direction of gas flow), which makes the load-bearing ring 3 more rigid. The tapered section 33 of the load-bearing ring 3 is provided with holes 31. Multiple holes 31 can be provided along the circumferential direction C of the load-bearing ring 3. Through the holes 31, the airflow can flow along the outer duct 100 to the convergence adjustment piece 43 described later. , the annular space between the expansion adjustment piece 53 described later and the outer adjustment piece 7 described later. The one-way arrows in Figures 2 and 10 indicate the direction of air flow. The tapered section 33 of the load-bearing ring 3 can form an angle of 30 to 45 degrees with the direction of gas flow. The gas flow can pass through the hole 31 and flow through the space between the deflection ring 521 and the convergence piece connecting component 42. The gas flow is Energy loss is small, allowing greater thrust to be provided.

The load-bearing ring 3 includes a groove-shaped structure 32. The groove-shaped structure 32 can be located at the radially inner part of the load-bearing ring 3. The groove-shaped structure 32 can include two side walls 321 and a bottom wall 322. The groove-shaped structure 32 can make the load-bearing ring 3 The stiffness of force ring 3 is higher. The opening of the groove structure 32 can face the front end of the vector adjustment nozzle, and the booster cylinder 1 can be embedded in the groove structure 32. The groove structure 32 can be used as a stop and positioning of the booster cylinder 1. The two ends of the groove structure 32 The side wall 321 can be positioned radially to the boosting cylinder 1 , and the bottom wall 322 of the groove structure 32 can be positioned axially to the boosting cylinder 1 . The bottom wall 322 may be provided with mounting holes for connecting the force-bearing ring 3 and the boosting cylinder 1. There are multiple mounting holes arranged along the circumferential direction C.

As shown in FIGS. 2 and 4 to 8 , the throat adjustment mechanism 4 includes a throat actuator 41 (also called an A8 actuator), a convergence piece connection assembly 42 , a convergence adjustment piece 43 and a convergence sealing piece 44 .

A plurality of convergence adjustment pieces 43 and convergence sealing pieces 44 are hinged to the load-bearing ring 3 . The convergence sealing pieces 44 are arranged between two adjacent convergence adjustment pieces 43 . The convergence adjustment pieces 43 and the convergence sealing pieces 44 are arranged alternately. A plurality of convergence adjustment pieces 43 and a plurality of convergence sealing pieces 44 form an annular shape (which can be called a throat), and the throat actuator 41 and the convergence piece connection assembly 42 are arranged on the radial outside of the throat. By driving the convergence adjusting piece 43 to move through the throat actuator 41, the inner diameter of the throat can be increased or reduced.

The throat actuator 41 includes a throat actuator body 411 and a throat actuator piston rod 412. The throat actuator piston rod 412 can move relative to the throat actuator main body 411. A plurality of throat actuators 41 are provided extending along the circumferential direction C. For example, twelve throat actuators 41 may be provided. The main body 411 of the throat actuator can be hinged to the convergence adjustment piece 43 , and the piston rod 412 of the throat actuator can be hinged to another convergence adjustment piece 43 . A convergence sealing piece 44 may be spaced between the convergence adjusting piece 43 connected to the throat actuator body 411 and the throat actuator piston rod 412 of the same throat actuator 41 .

It can be understood that not only the inner diameter of the throat can be increased or reduced by the simultaneous action of multiple throat actuators 41, but also the throat can be deflected by the separate actions of multiple throat actuators 41.

The converging piece connection assembly 42 includes a converging piece first connecting rod 421 and a converging piece second connecting rod 422 . The first link 421 of the convergence piece is hinged to the convergence adjustment piece 43 connected to the main body 411 of the throat actuator, and the second link 422 of the convergence piece is hinged to the convergence adjustment piece 43 connected to the piston rod 412 of the throat actuator. The first connecting rod 421 of the piece and the second connecting rod 422 of the converging piece are hinged. The convergence piece connection assembly 42 can connect adjacent convergence adjustment pieces 43. When the throat actuator 41 drives the convergence adjustment pieces 43 to move, multiple convergence adjustment pieces 43 and multiple convergence sealing pieces 44 can be arranged compactly. thus maintaining a seal.

It can be understood that in other possible embodiments, the throat actuator of the throat adjustment mechanism 4 can also be provided extending along the axial direction A, a cam is provided on the radial outside of the convergence adjustment piece, and the throat actuator of the throat actuator can be arranged extending along the axial direction A. The pipe actuator piston rod is connected with a throat adjusting ring. The throat adjusting ring is in contact with the cam. The contact surface between the throat adjusting ring and the cam can be a curved surface. The movement of the convergence adjusting piece is driven by changing the contact position between the throat adjusting ring and the cam.

As shown in FIGS. 3 to 8 , the nozzle adjustment mechanism 5 includes a nozzle actuator 51 (also called an A9 actuator), a nozzle transmission assembly 52 , an expansion adjustment piece 53 , an expansion sealing piece 54 and an expansion piece connection assembly 55 .

The expansion adjustment piece 53 is hinged to the tail end of the convergence adjustment piece 43 , and the expansion sealing piece 54 is hinged to the tail end of the convergence sealing piece 44 . The expansion sealing piece 54 is arranged between two adjacent expansion adjustment pieces 53. Multiple expansion adjustment pieces 53 and expansion sealing pieces 54 alternately form an annular shape (which can be called a nozzle). The nozzle actuator 51 and the nozzle transmission The assembly 52 is arranged radially outside the nozzle.

The nozzle actuator 51 can drive the expansion adjustment piece 53 to move through the nozzle transmission assembly 52, and the nozzle actuator 51 is arranged to extend along the axial direction A. Multiple nozzle actuators 51 may be provided, for example, three nozzle actuators 51 are evenly arranged along the circumferential direction C, and two adjacent nozzle actuators 51 are spaced 120 degrees apart.

As shown in Figures 4 to 6, the nozzle actuator 51 includes a nozzle actuator body 511 and a nozzle actuator piston rod 512. The nozzle actuator piston rod 512 can move relative to the nozzle actuator body 511. The main body 511 of the actuating cylinder can be connected to the outer casing 2 , and the piston rod 512 of the nozzle actuating cylinder can be connected to the nozzle transmission assembly 52 .

The nozzle transmission assembly 52 includes a deflection ring 521 , a deflection ring support part 522 , a pull rod 523 and an expansion bracket 524 . The deflection ring 521 is sleeved on the radially outer side of the load-bearing ring 3 , and the deflection ring 521 is connected to the load-bearing ring 3 through the deflection ring support portion 522 . The deflection ring support part 522 may include two sections of hinged support rods, one of which is hinged to the load-bearing ring 3 and the other support rod is hinged to the deflection ring support part 522 . In the circumferential direction C, the deflection ring support portion 522 may be located between two adjacent holes 31 , thereby reducing the impact of the deflection ring support portion 522 on the airflow. The nozzle actuator piston rod 512 is connected to the deflection ring 521 , and the nozzle actuator 51 can drive the deflection ring 521 to move along the axial direction A relative to the load-bearing ring 3 .

One end of the pulling rod 523 is hinged to the deflection ring 521 , and the other end of the pulling rod 523 is hinged to the expansion bracket 524 . The hinged rotation axis of the tie rod 523 and the expansion bracket 524 extends along the radial direction of the vector adjustment nozzle.

The pull rod 523 and the expansion bracket 524 can be formed into a V shape. The hinged end of the pull rod 523 and the expansion bracket 524 can be a V-shaped tip. The bifurcated end of the pull rod 523 is connected to the deflection ring 521 and the bifurcated end of the expansion bracket 524 Connected to the expansion adjustment piece 53.

As shown in FIG. 5 , the expansion piece connection assembly 55 includes a first expansion piece connecting rod 551 , a second expansion piece connecting rod 552 , a third expansion piece connecting rod 553 and a fourth expansion piece connecting rod 554 .

One end of the first connecting rod 551 of the expansion piece is hinged to the expansion bracket 524, one end of the second connecting rod 552 of the expansion piece is hinged to the other expansion bracket 524, and the other end of the first connecting rod 551 of the expansion piece is hinged to the second connecting rod of the expansion piece. 552 on the other side. One end of the third connecting rod 553 of the expansion piece is hinged to the first connecting rod 551 of the expansion piece. One end of the fourth connecting rod 554 of the expansion piece is hinged to the second connecting rod 552 of the expansion piece. The other end of the third connecting rod 553 of the expansion piece is hinged to The other end of the fourth connecting rod 554 is expanded. The hinged rotating shaft of the third connecting rod 553 of the expansion piece and the fourth connecting rod 554 of the expansion piece is connected to the expansion sealing piece 54 between the two expansion brackets 524 . The first connecting rod 551 of the expansion piece and the second connecting rod 552 of the expansion piece can have the same length. The third connecting rod 553 of the expansion piece and the fourth connecting rod 554 of the expansion piece can have the same length. The first connecting rod 551 of the expansion piece and the second connecting rod 552 of the expansion piece can have the same length. The lengths of the connecting rods 552 are both longer than the lengths of the third connecting rod 553 of the expansion piece and the fourth connecting rod 554 of the expansion piece.

As shown in FIGS. 4 to 6 , the expansion adjustment piece 53 is located radially outside the expansion sealing piece 54 , and the expansion adjustment piece 53 and the expansion sealing piece 54 have overlapping portions. The expansion sealing piece 54 is connected to a sealing piece pressing member 56. The sealing piece pressing piece 56 can be pressed on the expansion adjusting pieces 53 on both sides of the expansion sealing piece 54, so that the overlapping portion of the expansion sealing piece 54 and the expansion adjusting piece 53 can be tightened. The sticker remains sealed.

When the three nozzle actuators 51 act synchronously, the deflection ring 521 can move along the axial direction A as a whole, causing the expansion adjustment piece 53 to expand or converge, thereby increasing or reducing the area of the nozzle. When the three nozzle actuators 51 act respectively, the movements of the three nozzle actuators 51 are not synchronized, the deflection ring 521 is deflected, and the expansion adjustment piece 53 expands or converges to different degrees, so that the direction of the nozzle is relative to the external machine. The axial direction of box 2 is deflected by vector A.

The edge of the tail nozzle of the vector adjustment nozzle is jagged. The specific inclination angle of the jagged edge can be designed according to the edge alignment principle in stealth design. The incident radar waves are reflected to specific angles, which can reduce the rear hemisphere radar scattering cross section. (RCS). The jagged edges can create jet vortices when the engine blows air, accelerating the mixing of exhaust from the tail nozzle with cold air, and reducing infrared radiation.

Specifically, the trailing edges of the expansion adjustment pieces 53 and the expansion sealing pieces 54 form a V-shaped protrusion, and the expansion adjustment pieces 53 and the expansion sealing pieces 54 are alternately arranged to form a zigzag edge. The trailing edge of the outer adjusting piece 7 forms a V-shaped protrusion, and multiple outer adjusting pieces 7 are arranged in sequence to form a zigzag edge.

It can be understood that an aeroengine using a vector-adjusted nozzle can enable the aircraft to have a higher instantaneous turning rate, reduce the size of the aircraft's tail, reduce drag, and reduce the take-off and landing run distances.

As shown in Figures 1 and 2, the sealing cover 6 can be placed on the radial outside of the throat adjustment mechanism 4 and the nozzle adjustment mechanism 5. The front end of the sealing cover 6 can be welded to the outer casing 2 to seal the outer duct 100. . The front end of the sealing cover 6 can be tapered so that the sealing cover 6 has a tapered cylindrical shape. The floating sleeve can be movably connected to the sealing cover 6 relative to the sealing cover 6 , and the hydraulic pipeline connected to the throat actuator 41 and/or the nozzle actuator 51 can be connected to the controller through the floating sleeve.

As shown in Figures 2 to 4, the outer adjustment piece 7 is located radially outside the throat adjustment mechanism 4 and the nozzle adjustment mechanism 5 and at the rear end of the sealing cover 6. The outer adjustment piece 7 can be connected to the pull rod 523. The outer adjustment piece 7 can be connected to the pull rod 523. 7 can move together with the pull rod 523. A portion of the outer duct 100 is defined between the radially outer sides of the converging adjusting piece 43 , the converging sealing piece 44 , the expanding adjusting piece 53 and the expanding sealing piece 54 and the radially inner sides of the sealing cover 6 and the outer adjusting piece 7 . The part defining the outer duct 100 does not need to be opened to provide a connection structure such as the nozzle transmission assembly 52, so the sealing requirements of the outer duct 100 can be met.

Although the present application has been described in detail using the above embodiments, it is obvious to those skilled in the art that the present application is not limited to the embodiments described in this specification. This application can be modified and implemented as a modified embodiment without departing from the gist and scope of the application defined by the claims. Therefore, the description in this specification is for the purpose of illustration and does not have any restrictive meaning on the present application.

Claims (10)

1. A vector adjustment nozzle, characterized in that the vector adjustment nozzle includes: Booster cylinder (1), the booster cylinder (1) is cylindrical; Outer casing (2), the outer casing (2) is arranged radially outside the boosting cylinder (1), between the boosting cylinder (1) and the outer casing (2) A portion of the outer duct (100) is defined between them; A force-bearing ring (3). The force-bearing ring (3) is provided with a hole (31). The hole (31) enables the airflow to flow in the outer duct (100) to the vector adjustment nozzle. Tail nozzle, the booster cylinder (1) and the outer casing (2) are connected through the load-bearing ring (3); A vector adjustment mechanism, which is connected to the outer casing (2) through the load-bearing ring (3), and can cause the vector adjustment nozzle to contract, expand, or vector deflect; Sealing cover (6), the sealing cover (6) is arranged radially outside the vector adjustment mechanism, the front end of the sealing cover (6) is welded to the outer casing (2), the sealing cover (6) 6) The radially inner side defines a portion of the outer duct (100); and External adjustment piece (7), the outer adjustment piece (7) is arranged radially outside the vector adjustment mechanism and at the tail end of the sealing cover (6), the radial direction of the outer adjustment piece (7) The inner side defines part of the outer duct (100). 2. The vector adjustment nozzle according to claim 1, characterized in that the force-bearing ring (3) includes a tapered section (33) extending from the front end to the tail end of the force-bearing ring (3). In the direction, the tapered section (33) is tapered. 3. The vector adjustment nozzle according to claim 2, characterized in that the tapered section (33) forms an included angle of 30 to 45 degrees with the gas flow direction. 4. The vector adjustment nozzle according to claim 1, characterized in that the force-bearing ring (3) includes a groove structure (32), and the opening of the groove structure (32) faces the booster cylinder. body (1), and the booster cylinder (1) is partially embedded in the electric trough structure (32). 5. The vector adjustment nozzle according to claim 4, characterized in that the groove structure (32) includes two side walls (321) and a bottom wall (322), and the two side walls (321) ) radially positions the boosting cylinder (1), and the bottom wall (322) axially positions the boosting cylinder (1). 6. The vector adjustment nozzle according to claim 5, characterized in that the bottom wall (322) is provided with a mounting hole for connecting the force-bearing ring (3) and the boosting cylinder (1). . 7. The vector adjustment nozzle according to claim 1, characterized in that the boosting cylinder (1) includes an elastic part (11), and the elastic part (11) is located in the boosting cylinder (1). ), the elastic part (11) includes an annular structure with a U-shaped axial cross-section. 8. The vector adjustment nozzle according to claim 1, wherein the edge of the tail nozzle of the vector adjustment nozzle is in a jagged shape. 9. The vector adjustment nozzle according to claim 1, characterized in that the sealing cover (6) includes a cone-shaped cylinder. 10. An adaptive variable cycle engine, characterized in that the adaptive variable cycle engine includes the vector adjustment nozzle according to any one of claims 1 to 9.