Backflow combustion chamber driving structure for turboprop engine

Abstract

The backflow combustion chamber driving structure comprises a combustion chamber shell, an adjusting mechanism, an energy storage mechanism, a carbon removal mechanism and a power mechanism, an inner-layer combustion chamber is arranged in the combustion chamber shell, and an air compression chamber is arranged at the front end of the inner-layer combustion chamber; an exhaust port is formed in the end, away from the air compression chamber, of the combustion chamber shell, a rectification grid is fixedly connected to the inner wall of the air compression chamber, a filter plate is fixedly connected to the inner wall of the air compression chamber, and a plurality of containing grooves are formed in the outer wall of the air compression chamber; by arranging the mechanisms, vibration of the exhaust port can be converted into storable pressure energy through the energy storage mechanism, the stored energy can directly drive the adjusting mechanism to work, an additional power source is not needed, and the working condition adaptability is improved while energy consumption is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of engines, and particularly relates to a backflow combustion chamber driving structure for a turboprop engine. BACKGROUND

[0002] As a kind of power device with propulsion efficiency and power performance, turboprop engine is widely used in branch line aviation, general aviation, ship power and distributed energy and other fields. One of the core components of backflow combustion chamber undertakes the key functions of fuel combustion and energy conversion, and its performance directly affects the fuel efficiency, operation stability, emission level and service life of the engine.

[0003] The air inlet structure of the traditional backflow combustion chamber is mostly fixed design, and the air inlet angle and air inlet passage opening degree cannot be dynamically adjusted according to the working condition. For example, the angle of the flow straightener grid and the air inlet guide component is fixed, which cannot adapt to different load requirements. When the load is high, the fixed angle is easy to cause insufficient air turbulence, uneven mixing of fuel and air, and limit the improvement of combustion efficiency. When the load is low, the air inlet passage opening degree may not be correspondingly reduced, causing increased air resistance and additional power consumption. At the same time, the air inlet adjustment lacks energy recovery mechanism support. If the existing air inlet adjustment needs to be dynamically adjusted, it often relies on an additional power source to drive, and the redundant energy such as vibration generated during the exhaust process of the combustion chamber is not recycled, which not only causes energy waste, but also increases the energy consumption burden of the adjustment mechanism.

[0004] To solve the above problems, the present application proposes a new backflow combustion chamber driving structure for a turboprop engine. SUMMARY

[0005] The purpose of the present application is to solve the problems existing in the prior art and provide a backflow combustion chamber driving structure for a turboprop engine.

[0006] In order to achieve the above purpose, the present application adopts the following technical scheme:

[0007] A backflow combustion chamber driving structure for a turboprop engine, comprising a combustion chamber shell, an adjustment mechanism, an energy storage mechanism, a carbon removal mechanism and a power mechanism.

[0008] The inside of the combustion chamber shell is provided with an inner combustion chamber, the front end of the inner combustion chamber is provided with a plenum, one end of the combustion chamber shell away from the plenum is provided with an exhaust port, the inner wall of the plenum is fixedly connected with a flow straightener grid, the inner wall of the plenum is fixedly connected with a filter plate, and a plurality of accommodating grooves are formed in the outer wall of the plenum.

[0009] The energy storage mechanism is used for converting the vibration absorption of the exhaust port into kinetic energy storage, the energy storage mechanism is composed of a transverse damping unit, a reset unit and an energy storage unit, the transverse damping unit can be transversely contracted and expanded, the reset unit is contracted and expanded along with the contraction and expansion of the transverse damping unit, and the energy storage unit is used for storing the kinetic energy generated when the transverse damping unit is contracted and expanded.

[0010] The carbon removal mechanism is used for removing the carbon deposition of the exhaust port.

[0011] The adjusting mechanism is used for adjusting the air inlet angle of the air inlet port.

[0012] The power mechanism is used for driving the engine to work.

[0013] Preferably, the carbon removal mechanism is arranged on the inner wall of the exhaust port, the carbon removal mechanism can be transversely moved, and the energy storage unit can drive the carbon removal mechanism to move transversely when releasing kinetic energy.

[0014] Preferably, the adjusting mechanism is composed of a rotating unit and a reciprocating telescopic unit, the rotating unit can be fan-shaped rotated, the reciprocating telescopic unit can be expanded and contracted, the reciprocating telescopic unit is used for driving the rotating unit, and the reciprocating telescopic unit is arranged in the containing groove and can drive the adjusting mechanism to work when the energy storage unit releases kinetic energy.

[0015] Preferably, the adjusting mechanism is arranged at the front end of the rectifying grid, and the rectifying grid is arranged at the front end of the filter plate.

[0016] Preferably, the first air inlet hole is arranged on the inner layer combustion chamber, the second air inlet hole is arranged on the inner layer combustion chamber, the atomizing oil injection port is fixedly connected to the inner wall of the inner layer combustion chamber, the spark plug is fixedly connected to the inner wall of the inner layer combustion chamber, and the main oil injection port is fixedly connected to the inner wall of the inner layer combustion chamber.

[0017] Preferably, the lower end of the inner layer combustion chamber is provided with an annular exhaust port, and the annular exhaust port is fixedly connected with a plurality of guide plates.

[0018] Preferably, the power mechanism is composed of a first rotating unit and a second rotating unit, the first rotating unit is used for driving the second rotating unit to rotate, the first rotating unit is arranged in the inner layer combustion chamber, and the second rotating unit is arranged in the compression chamber.

[0019] Preferably, the lower end of the annular exhaust port is fixedly connected with a flow guide groove, the flow guide groove is in communication with the inner wall of the inner layer combustion chamber, the flow guide groove is a through groove, and the opening of the flow guide groove is opposite to the main oil injection port.

[0020] The present application has the following beneficial effects:

[0021] 1. The device converts exhaust port vibration into storable pressure energy through the energy storage mechanism: the vibration of the exhaust port drives the extension and retraction of the telescopic cylinder, the airflow direction is controlled by the one-way valve, the kinetic energy is converted into gas pressure energy and stored in the energy storage tank, avoiding waste of vibration energy. The stored energy can directly drive the adjusting mechanism to work: the high-pressure gas released by the energy storage tank drives the rectifier plate to adjust the intake angle through the air cylinder, without the need for additional power source, reducing energy consumption while improving working condition adaptability.

[0022] 2. The intake stage improves the intake quality through multi-stage adjustment and pretreatment: the adjusting mechanism (rectifier plate) can adjust the intake angle and passage opening according to the working condition, cooperate with the airflow combing of the rectifier grid and the impurity removal of the filter plate, so that the air enters the combustion chamber in the best state. The combustion stage strengthens fuel atomization and mixing by using high-temperature gas drainage: the drainage groove uses negative pressure to introduce high-temperature gas at high load, preheats the fuel sprayed from the main oil injection port and disperses the atomized particles, at the same time provides suitable temperature for the mixture, promotes the full mixing of fuel and air, reduces carbon deposition and pollutants, improves combustion efficiency and power output stability.

[0023] 3. The carbon removal mechanism realizes automatic carbon removal with the help of the energy storage tank power: the high-pressure gas released by the energy storage tank pushes the carbon removal plate to slide along the inner wall of the exhaust port, periodically removes the carbon deposition, avoids carbon deposition to block the exhaust passage, and the carbon removal process does not need to stop and adapts to the exhaust working condition: the carbon removal plate realizes reciprocating reset by jet thrust and its own gravity, uses the intermittent gas supply of the energy storage mechanism to complete periodic carbon removal, ensures smooth exhaust, avoids problems such as increased exhaust resistance and reduced combustion efficiency caused by excessive carbon deposition, and prolongs the service life of the whole device. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 A structure diagram of a backflow combustion chamber driving structure for a turboprop engine is proposed for the invention;

[0025] Figure 2 An internal structure diagram of a backflow combustion chamber driving structure for a turboprop engine is proposed for the invention;

[0026] Figure 3 A sectional view of a backflow combustion chamber driving structure for a turboprop engine is proposed for the invention;

[0027] Figure 4 A Figure 3 An enlarged schematic diagram of structure B;

[0028] Figure 5 A Figure 2 An enlarged schematic diagram of structure A;

[0029] Figure 6 A sectional view of the exhaust port;

[0030] Figure 7It is an internal sectional view of a backflow combustion chamber driving structure for a turboprop engine;

[0031] Figure 8 It is Figure 5 It is an enlarged schematic view of the structure at C;

[0032] Figure 9 It is a schematic view of the internal structure of the telescopic cylinder.

[0033] In the figure: 1 combustion chamber shell, 2 rectifying grid, 3 rectifying plate, 4 rotating shaft, 5 sliding block, 6 filter plate, 7 cylinder, 8 working gas pipe, 9 cylinder exhaust pipe, 10 rotating shaft, 11 air compressor turbine, 12 inner layer combustion chamber, 13 first air inlet hole, 14 exhaust port, 15 turbine, 161 drainage groove, 16 annular exhaust port, 17 guide plate, 18 second air inlet hole, 20 atomizing oil injection port, 21 spark plug, 22 main oil injection port, 23 fixed plate, 24 telescopic cylinder, 25 exhaust pipe, 27 energy storage gas tank, 28 jet ring, 29 guide rod, 30 carbon cleaning plate, 31 jet gas pipe, 101 air compressor chamber, 103 sealing chamber, 201 containing groove, 202 sliding groove, 2301 return spring, 301 fixed shaft. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all.

[0035] Embodiment one:

[0036] Referring to Figure 1 - Figure 9 A backflow combustion chamber driving structure for a turboprop engine, comprising a combustion chamber shell 1, an adjusting mechanism, an energy storage mechanism, a carbon removal mechanism, and a power mechanism:

[0037] The inner part of the combustion chamber shell 1 is provided with an inner layer combustion chamber 12, the front end of the inner layer combustion chamber 12 is provided with an air compressor chamber 101, the end of the combustion chamber shell 1 away from the air compressor chamber 101 is provided with an exhaust port 14, the inner wall of the air compressor chamber 101 is fixedly connected with a rectifying grid 2, the inner wall of the air compressor chamber 101 is fixedly connected with a filter plate 6, and a plurality of containing grooves 201 are formed in the outer wall of the air compressor chamber 101;

[0038] The energy storage mechanism is used for converting the vibration of the exhaust port into kinetic energy storage, and the energy storage mechanism is composed of a transverse damping unit, a reset unit and an energy storage unit, the transverse damping unit can be transversely contracted and expanded, the reset unit is contracted and expanded along with the contraction and expansion of the transverse damping unit, and the energy storage unit is used for storing the kinetic energy generated when the transverse damping unit is contracted and expanded;

[0039] The carbon removal mechanism is used for removing the carbon deposit of the exhaust port;

[0040] The adjusting mechanism is used for adjusting the air intake angle of the air intake port;

[0041] The power mechanism is used for driving the engine to work.

[0042] The adjusting mechanism is arranged at the front end of the flow regulation grid 2, the flow regulation grid 2 is arranged at the front end of the filter plate 6, the first air inlet hole 13 is arranged on the inner layer combustion chamber 12, the second air inlet hole 18 is arranged on the inner layer combustion chamber 12, the inner wall of the inner layer combustion chamber 12 is fixedly connected with the atomizing oil injection port 20, the inner wall of the inner layer combustion chamber 12 is fixedly connected with the spark plug 21, the inner wall of the inner layer combustion chamber 12 is fixedly connected with the main oil injection port 22, the lower end of the inner layer combustion chamber 12 is provided with the annular exhaust port 16, the annular exhaust port 16 is fixedly connected with a plurality of guide plates 17, the power mechanism is composed of a first rotating unit and a second rotating unit, the first rotating unit is used for driving the second rotating unit to rotate, the first rotating unit is arranged in the inner layer combustion chamber 12, and the second rotating unit is arranged in the compression chamber 101.

[0043] Specifically, the transverse damping unit can be made into a fixed plate 23 and a telescopic cylinder 24, the reset unit can be specifically made into a reset spring 2301, and the energy storage unit can be specifically made into an energy storage gas tank 27. The fixed plate 23 is fixedly connected to the outer wall of the inner layer combustion chamber 12, the telescopic cylinder 24 is fixedly connected with the fixed plate 23, the telescopic end of the telescopic cylinder 24 is fixedly connected with the exhaust port 14, the exhaust port 14 is fixedly connected with the combustion chamber shell 1, the reset spring 2301 is arranged in the cylinder body of the telescopic cylinder 24, the telescopic cylinder 24 is fixedly connected with the exhaust pipe 25, and one end of the exhaust pipe 25 away from the telescopic cylinder 24 is fixedly connected with the energy storage gas tank 27.

[0044] Specifically, the first rotating unit can be specifically made into a rotating shaft 10 and a turbine 15, and the second rotating unit can be specifically made into a compression turbine 11. The rotating shaft 10 penetrates and rotationally connects the inner layer combustion chamber 12, the turbine 15 is fixedly connected to the axial outer wall of the rotating shaft 10, and the compression turbine 11 is fixedly connected to the axial outer wall of the rotating shaft 10.

[0045] It should be further explained that the telescopic cylinder 24 is provided with an air inlet groove, and the air inlet groove and the exhaust pipe 25 are both provided with a one-way valve. It should be further explained that the first air inlet hole 13 is arranged at the middle section of the inner layer combustion chamber 12, and the second air inlet hole 18 is arranged at the upper end of the inner layer combustion chamber 12.

[0046] In this embodiment, the specific working mode of the device is as follows: first, the air intake stage. The external air first enters the compression chamber 101, at this time, the adjusting mechanism arranged at the front end of the flow regulation grid 2 will adjust the air intake angle of the air intake port according to the working condition requirement, so that the air enters at a more optimal angle. Subsequently, the air flow becomes more stable after being combed by the flow regulation grid 2, and then the impurities in the air are preliminarily removed through the filtering of the filter plate 6, thereby providing a clean air source for subsequent combustion.

[0047] Then, the combustion preparation and combustion phase is entered. The filtered air enters the inner combustion chamber 12 through the first air inlet hole 13 in the middle of the inner combustion chamber 12 and the second air inlet hole 18 in the upper end of the inner combustion chamber 12. At the same time, the atomizing oil injection port 20 and the main oil injection port 22 on the inner wall of the inner combustion chamber 12 spray fuel, and the fuel and the entering air are fully mixed to form a combustible mixture. Then, the spark plug 21 generates an electric spark to ignite the combustible mixture, and the mixture burns to release a large amount of energy to push the gas in the combustion chamber to expand.

[0048] In the power transmission phase, the high-temperature and high-pressure gas generated by combustion in the inner combustion chamber 12 is guided by the guide plate 17 of the annular exhaust port 16, impinges on the blades of the turbine 15 in a tangential direction, and drives the turbine 15 to rotate. Since the turbine 15 is fixedly connected to the axial outer wall of the rotating shaft 10, the rotating shaft 10 rotates with the turbine 15. The rotating shaft 10 penetrates the rotating connection inner combustion chamber 12, and the air compressor turbine 11 is fixedly connected to the axial outer wall of the rotating shaft 10, so the rotation of the rotating shaft 10 drives the air compressor turbine 11 to rotate, and the air compressor turbine 11 further compresses the air entering the compression chamber 101 to increase the intake pressure and improve the combustion efficiency. At the same time, the rotating shaft 10 extends to the outside of the engine and drives the propeller to rotate through the speed reducer.

[0049] The exhaust gas after driving the turbine 15 to rotate continues to flow to the exhaust port 14. When the exhaust gas passes through the exhaust port 14, vibration is generated. At this time, the energy storage mechanism starts to work, and the vibration of the exhaust port 14 drives the extension and contraction of the extension and contraction end of the extension and contraction cylinder 24 fixedly connected thereto, so that the extension and contraction cylinder 24 is horizontally contracted and expanded. The reset spring 2301 in the cylinder body of the extension and contraction cylinder 24 is correspondingly contracted and expanded with the contraction and expansion of the extension and contraction cylinder 24. In the process of contraction and expansion of the extension and contraction cylinder 24, gas enters the inside of the extension and contraction cylinder 24 through the air inlet groove, and the compressed gas enters the energy storage tank 27 through the exhaust pipe 25. Since the air inlet groove and the exhaust pipe 25 are provided with one-way valves, backflow of the gas is prevented, so that the kinetic energy generated by the vibration is converted into pressure energy of the gas and stored in the energy storage tank 27, achieving the effect of energy saving and energy storage.

[0050] Example two:

[0051] Reference Figure 1 - Figure 7 Compared with example one, the adjusting mechanism in this embodiment is composed of a rotating unit and a reciprocating extension and contraction unit. The rotating unit can rotate in a fan shape, and the reciprocating extension and contraction unit can be expanded and contracted. The reciprocating extension and contraction unit is used to drive the rotating unit, and the reciprocating extension and contraction unit is arranged in the containing groove 201. When the energy storage unit releases kinetic energy, the reciprocating extension and contraction unit can drive the adjusting mechanism to work.

[0052] The specific rotating unit can be specifically made into the rectifier plate 3, the rotating shaft 4, the fixed shaft 301, the reciprocating telescopic unit can be specifically made into the cylinder 7, the cylinder 7 is arranged in the containing groove 201, the telescopic end of the cylinder 7 is fixedly connected with the sliding block 5, the sliding block 5, the compression chamber 101 is provided with the sliding groove 202, the sliding block 5 and the sliding groove 202 are slidably connected, one end of the fixed shaft 301 is fixedly connected with the rectifier plate 3, the other end is fixedly connected with the sliding block 5, the rectifier grid is fixedly connected with the sealing chamber 103, one end of the rotating shaft 4 is rotatably connected with the sealing chamber 103, the other end is rotatably connected with the rectifier plate 3, the cylinder 7 is fixedly connected with the working gas pipe 8, the cylinder 7 is fixedly connected with the cylinder exhaust pipe 9, one end of the working gas pipe 8 away from the cylinder 7 is fixedly connected with the energy storage gas tank 27, one end of the cylinder exhaust pipe 9 away from the cylinder 7 is located in the compression chamber 101.

[0053] It needs to be further explained that the cylinder exhaust pipe 9 and the working gas pipe 8 are both provided with a one-way valve,

[0054] In the embodiment, the specific working process of the device is that when the energy storage gas tank 27 releases pressure energy, high-pressure gas enters the cylinder 7 through the working gas pipe 8 (with a built-in one-way valve), pushes the telescopic end of the cylinder 7 to extend, and in turn drives the sliding block 5 to slide forward along the sliding groove 202, the sliding block 5 pushes the rectifier plate 3 to make fan-shaped rotation with the rotating shaft 4 as the center through the fixed shaft 301, so that the rectifier plate 3 expands the angle to increase, the inlet passage opening degree is changed or the inlet angle is changed, so as to adapt to the high load working condition; when the energy storage gas tank 27 is insufficient in pressure or stops supplying gas, the gas in the cylinder 7 is gradually discharged to the compression chamber 101 through the cylinder exhaust pipe 9, at this time, the high-pressure gas flow generated by the compression turbine 11 continuously compressing in the compression chamber 101 acts on the rectifier plate 3 and generates a reverse thrust, the rectifier plate 3 reversely rotates in fan-shaped under the action of the gas flow thrust, drives the sliding block 5 to slide backward along the sliding groove 202, forces the telescopic end of the cylinder 7 to retract and reset, and finally makes the rectifier plate 3 return to the initial angle, and adapts to the low load working condition.

[0055] Example three:

[0056] Referring to Figure 1 - Figure 7 Compared with example two, in this embodiment, the carbon removal mechanism is arranged on the inner wall of the exhaust port 14, and the carbon removal mechanism can move transversely, and the energy storage unit can drive the carbon removal mechanism to move transversely when releasing kinetic energy.

[0057] In this embodiment, the carbon removal mechanism can be specifically made into a carbon removal plate 30, a jet ring 28 and a guide rod 29, the jet ring 28 is fixedly connected to the inner wall of the exhaust port 14, the guide rod 29 is fixedly connected to the inner wall of the exhaust port 14, the carbon removal plate 30 is slidably connected to the guide rod 29, the jet hole of the jet ring 28 is opposite to the bottom of the carbon removal plate 30, and the jet ring 28 is connected to the energy storage gas tank 27 through a jet gas pipe 31.

[0058] In the embodiment, the specific working process of the device is as follows: when the engine stops working and the carbon cleaning operation of the exhaust port 14 is needed, the energy storage tank 27 releases the stored pressure energy, and the high-pressure gas is delivered to the jet ring 28 through the jet pipe 31. Since the jet ring 28 is fixedly connected to the inner wall of the exhaust port 14, and the jet holes of the jet ring 28 are opposite to the bottom of the carbon cleaning plate 30, the high-pressure gas sprayed from the jet holes will directly act on the bottom of the carbon cleaning plate 30, generating an upward thrust. Under the action of the thrust, the carbon cleaning plate 30 will slide forward along the guide rod 29 from the inner wall of the exhaust port 14. In the sliding process, the carbon cleaning plate 30 will scrape off the carbon deposited on the inner wall of the exhaust port 14, and the carbon will be peeled off from the inner wall. When the energy storage tank 27 stops supplying gas, and the jet ring 28 no longer sprays gas, the carbon cleaning plate 30 loses the thrust, and when the engine works subsequently, the exhaust gas will flow in the exhaust port 14 again. At this time, under the action of the exhaust gas pressure, the carbon cleaning plate 30 will slide back along the inner wall of the exhaust port 14 to reset, waiting for the next carbon cleaning operation. In this way, the carbon deposited in the exhaust port 14 can be periodically removed, ensuring the smoothness of the exhaust passage and avoiding the influence of excessive carbon deposition on the exhaust efficiency.

[0059] Embodiment Four

[0060] With reference to Figure 4 , compared with Embodiment Three, in this embodiment, the lower end of the annular exhaust port 16 is fixedly connected with a drainage groove 161, the drainage groove 161 is in communication with the inner wall of the inner combustion chamber 12, the drainage groove 161 is a through groove, and the opening of the drainage groove 161 is opposite to the main oil injection port 22. It needs to be further explained that the drainage groove 161 is provided with a control valve, and it needs to be further explained that the control valve of the drainage groove 161 is linked with the engine ECU. When the load is high, the ECU detects that the oil injection amount of the main oil injection port increases, and automatically opens the control valve; when the load is low, the control valve is closed, so as to avoid the influence of the recovered exhaust gas with complete combustion on the combustion stability. It needs to be further explained that the inner wall of the drainage groove 161 is provided with a heat insulation layer to prevent the loss of high-temperature gas heat.

[0061] The specific working process of the device in this embodiment is as follows: when the device is running under high load, the control valve arranged in the drainage groove 161 is opened, at this time, when the gas passes through the annular exhaust port 16 at high speed, a certain negative pressure area will be formed around it. Since the drainage groove 161 is a through groove and is in communication with the inner wall of the inner combustion chamber 12, this negative pressure will produce a suction effect through the drainage groove 161, and the high-temperature gas in the inner combustion chamber 12 will be drained to the inside of the drainage groove 161.

[0062] At the same time, the opening of the flow groove 161 is opposite to the main oil injection port 22, and when the main oil injection port 22 sprays fuel, the high-temperature gas guided by the flow groove 161 just meets the fuel injection path. The high-temperature gas can preheat the fuel, reduce the viscosity of the fuel, and improve the atomization effect of the fuel; on the other hand, the high-speed gas can impact and disperse the atomized fuel particles, making the fuel droplets smaller and more uniform.

[0063] In addition, the high-temperature gas introduced by the flow groove 161 can also provide a suitable temperature environment for the mixing of fuel and air, and promote the formation speed of the mixed gas. This "high-temperature gas flow - fuel preheating atomization - mixed gas accelerated formation" linkage process achieved by the flow groove 161 can make the fuel sprayed by the main oil injection port 22 more fully mixed with the air entering the inner combustion chamber 12, thereby improving the combustion efficiency and reducing the accumulation of unburned carbon and pollutant emissions.

[0064] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacements or changes within the technical range disclosed by the present application according to the technical solution and the inventive concept of the present application, which should be covered within the protection scope of the present application.

Claims

1. A recirculation combustion chamber drive structure for a turboprop engine, comprising a combustion chamber shell, an adjustment mechanism, an energy storage mechanism, a carbon removal mechanism, and a power mechanism, characterized in that: An inner combustion chamber is provided inside the outer shell of the combustion chamber. A compressor chamber is provided at the front end of the inner combustion chamber. An exhaust port is provided at the end of the outer shell of the combustion chamber away from the compressor chamber. A rectifier grid is fixedly connected to the inner wall of the compressor chamber. A filter plate is fixedly connected to the inner wall of the compressor chamber. Multiple receiving slots are opened in the outer wall of the compressor chamber. The energy storage mechanism is used to absorb the vibration of the exhaust port and convert it into kinetic energy storage. The energy storage mechanism consists of a lateral damping unit, a reset unit and an energy storage unit. The lateral damping unit can be laterally contracted and expanded. The reset unit contracts and expands along with the contraction and expansion of the lateral damping unit. The energy storage unit is used to store the kinetic energy generated when the lateral damping unit contracts and expands. The carbon removal mechanism is used to remove carbon deposits from the exhaust port; The adjustment mechanism is used to adjust the air intake angle of the air inlet; The power mechanism is used to drive the engine.

2. The recirculation combustion chamber drive structure for a turboprop engine according to claim 1, characterized in that, The carbon removal mechanism is installed on the inner wall of the exhaust port. The carbon removal mechanism can move laterally. When the energy storage unit releases kinetic energy, it can drive the carbon removal mechanism to move laterally.

3. The recirculation combustion chamber drive structure for a turboprop engine according to claim 2, characterized in that, The adjustment mechanism consists of a rotating unit and a reciprocating telescopic unit. The rotating unit can rotate in a fan shape, and the reciprocating telescopic unit can expand and contract. The reciprocating telescopic unit is used to drive the rotating unit. The reciprocating telescopic unit is set in the receiving groove and can drive the adjustment mechanism to work when the energy storage unit releases kinetic energy.

4. The recirculation combustion chamber drive structure for a turboprop engine according to claim 1, characterized in that, The adjustment mechanism is located at the front end of the rectifier grid, and the rectifier grid is located at the front end of the filter plate.

5. A recirculation combustion chamber drive structure for a turboprop engine according to claim 1, characterized in that, The inner combustion chamber is provided with a first air intake hole and a second air intake hole. An atomizing fuel injector is fixedly connected to the inner wall of the inner combustion chamber. A spark plug is fixedly connected to the inner wall of the inner combustion chamber. A main fuel injector is fixedly connected to the inner wall of the inner combustion chamber.

6. A recirculation combustion chamber drive structure for a turboprop engine according to claim 5, characterized in that, The lower end of the inner combustion chamber is provided with an annular exhaust port, and multiple guide plates are fixedly connected to the annular exhaust port.

7. A recirculation combustion chamber drive structure for a turboprop engine according to claim 6, characterized in that, The power mechanism consists of a first rotating unit and a second rotating unit. The first rotating unit is used to drive the second rotating unit to rotate. The first rotating unit is located inside the inner combustion chamber, and the second rotating unit is located inside the compressor chamber.

8. A recirculation combustion chamber drive structure for a turboprop engine according to claim 6, characterized in that, The lower end of the annular exhaust port is fixedly connected to a flow channel, which is connected to the inner wall of the inner combustion chamber. The flow channel is a through channel, and the opening of the flow channel is directly opposite the main fuel injection port.

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