Combustion chamber of a micro turbojet engine

Abstract

The invention relates to the technical field of turbojet engine use, and proposes a combustion chamber of a micro turbojet engine, comprising a mounting tube and a combustion tube, wherein the combustion tube is arranged inside the mounting tube, a plurality of air inlet holes are opened on the combustion tube, a plurality of oil delivery components are arranged between the combustion tube and the mounting tube, the oil delivery components are used to deliver fuel to the combustion tube, the left end of the mounting tube is connected to an air inlet, and the right end of the mounting tube is connected to an exhaust component, the exhaust component is used to discharge the burned fuel and compressed gas, the combustion chamber of the micro turbojet engine can filter the compressed air delivered into the combustion tube of the turbojet engine, thereby reducing the particles that may be contained in the compressed air from entering the combustion tube as much as possible, thereby increasing the use time of the combustion tube, and at the same time, the filtered particles can be collected and discharged, thereby increasing the use time of the combustion tube.

Description

Technical Field

[0001] The invention relates to the technical field of turbojet engine use, and in particular to a combustion chamber of a micro turbojet engine. Background Art

[0002] A turbojet engine generally refers to a turbojet engine, which is a device that completely relies on gas flow to generate thrust to drive other objects. It is often used as a power source for high-speed aircraft. The structure of a turbojet engine consists of an air inlet, a compressor, a combustion chamber, a turbine and a tail nozzle. There is also an afterburner between the turbine and the tail nozzle of a fighter. A turbojet engine is also a type of heat engine. The basic principle of a heat engine is to input energy under high pressure and release energy under low pressure. Therefore, the working mode of a turbojet engine requires four stages: intake, pressurization, combustion and exhaust. The external air is first passed through the intake duct and the exhaust duct is used to blow the air out of the engine. The air enters the compressor of the turbojet engine through the air duct, and then the air is compressed and then transported into the combustion chamber. Then the fuel prepared in advance is transported into the combustion chamber through the oil pipeline, and then the ignition device is used to ignite the fuel and compressed air to generate impact force and then ejected through the nozzle of the turbojet engine, thus completing all the processes of the turbojet engine. The existing turbojet engine is not only used for high-speed aircraft alone, but also some miniature turbojet engines are installed on some small drones, model airplanes and aircraft to enhance their flight power.

[0003] The compressed air received in the existing combustion chamber is the external air collected in the intake duct and compressed by a multi-stage compressor. The fine dust in the air will form some harder particles after compression. These particles are easily retained in the combustion chamber after the high-temperature fuel is burned. As a result, after long-term use, there are more particles retained inside the combustion chamber, which affects the normal use of the combustion chamber and is not conducive to the long-term use of the combustion chamber of the turbojet engine. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the present invention provides a combustion chamber of a micro turbojet engine, which is capable of filtering the compressed air delivered into the combustion chamber of the turbojet engine, thereby minimizing the amount of particles that may be contained in the compressed air that enter the combustion chamber, thereby increasing the service life of the combustion chamber; at the same time, the filtered particles can also be collected and discharged, thereby increasing the service life of the combustion chamber.

[0006] (II) Technical solution

[0007] To achieve the above object, the present invention provides the following technical solution: A combustion chamber of a micro turbojet engine, comprising a mounting cylinder, a combustion cylinder, a driving assembly and a filtering assembly;

[0008] A combustion cylinder, wherein the combustion cylinder is arranged inside the mounting cylinder, a plurality of air inlet holes are provided on the combustion cylinder, a plurality of oil delivery assemblies are provided between the combustion cylinder and the mounting cylinder, the oil delivery assemblies are used to deliver fuel to the combustion cylinder, the left end of the mounting cylinder is connected to an air inlet, the right end of the mounting cylinder is connected to an exhaust assembly, the exhaust assembly is used to discharge the burned fuel and compressed gas;

[0009] A drive assembly, the drive assembly is arranged inside the mounting cylinder and the exhaust assembly, and the drive assembly is arranged on the inner wall of the combustion cylinder, and is used to deliver compressed gas into the combustion cylinder and deliver the burned gas into the exhaust assembly, and a fixing assembly is arranged between the drive assembly and the mounting cylinder;

[0010] A filter assembly is arranged on the outside of the combustion cylinder, a cleaning assembly is arranged between the filter assembly and the drive assembly, a collecting assembly is arranged between the bottom of the filter assembly and the mounting cylinder, and the collecting assembly is used to collect and discharge the cleaned particles.

[0011] In order to transport fuel to the combustion cylinder to burn the compressed air, preferably, the oil delivery assembly includes two mounting bodies, one side of the mounting cylinder and the combustion cylinder is provided with mounting openings, the two mounting bodies are installed in the corresponding mounting openings, an oil delivery pipeline is arranged between the two mounting bodies, the side of the oil delivery pipeline extending into the combustion cylinder is connected to a fuel injection pipe, and an ignition device is installed on the side of the oil delivery pipeline close to the fuel injection pipe.

[0012] In order to discharge the burned fuel and compressed gas, the exhaust assembly further includes an exhaust pipe, the exhaust pipe and the right end of the mounting pipe are connected to each other, the right end of the exhaust pipe is connected to a jet port, and a sealing ring sleeve is fixedly connected between the exhaust pipe and the combustion pipe, and the sealing ring sleeve is used to prevent compressed air from being discharged through the exhaust pipe.

[0013] In order to deliver compressed gas into the combustion cylinder and deliver the burned gas into the exhaust assembly, further, the driving assembly includes a compressor wheel and an exhaust wheel, a rotating shaft is fixedly connected between the compressor wheel and the exhaust wheel, both ends of the combustion cylinder are provided with rotating ports, the rotating shaft is arranged between the two rotating ports, a cone is fixedly connected to the right end of the exhaust wheel, the right end of the combustion cylinder is connected to multiple exhaust pipes, and one-way valves are installed on the multiple exhaust pipes.

[0014] In order to fix the driving assembly in the mounting tube, as a further solution of the present invention, the fixing assembly includes a fixing ring sleeve, which is fixedly connected to the interior of the mounting tube through a plurality of support rods, and a rotating plate is fixedly connected to the right end of the compressor wheel, and a circular groove is provided on the inner wall of the fixing ring sleeve, and the rotating plate is rotatably connected in the circular groove.

[0015] In order to filter impurities mixed in the compressed air, as a further solution of the present invention, the filter assembly includes a mounting ring sleeve, which is arranged on the outer wall of the combustion tube, and the left and right ends of the mounting ring sleeve are fixedly connected with a use ring plate, and a plurality of ventilation holes are opened on the two use ring plates, and a filter ring plate is fixedly connected on the right side of the inner wall of the mounting ring sleeve.

[0016] In order to clean the impurities filtered out on the filter plate, on the basis of the aforementioned scheme, the cleaning assembly includes a scraper, a rotating circular groove is opened on the ring plate located on the left, a rotating ring is rotatably connected to the inner wall of the rotating circular groove, a plurality of rotating balls are rotatably connected to the right end of the rotating ring, and the plurality of rotating balls are rotatably arranged in the rotating circular groove, a connecting rod is fixedly connected between the right end of the rotating ring and the scraper, a rotating ring sleeve is sleeved on the left part of the rotating shaft, and a connecting rod is fixedly connected between the rotating ring sleeve and one side of the left end of the rotating ring.

[0017] In order to collect and discharge the cleaned particles, on the basis of the above-mentioned scheme, the collection component further includes a collection box, and the bottom end of the mounting ring sleeve and the bottom of the mounting cylinder are both provided with use ports, and the collection box is installed in the two use ports. A collection groove is slidably arranged on the inner bottom wall of the collection box, and a sliding opening is opened on the bottom side of one end of the collection box. The collection groove is slidably arranged in the sliding opening, a connecting component is arranged between the collection groove and the bottom wall of the collection box, and a closing component is arranged on the middle inner wall of the collection box.

[0018] In order to fix the collecting trough in the collecting box, based on the above-mentioned scheme, the connecting assembly includes a sliding plate, which is fixedly connected to the bottom end of the collecting trough, and a sliding groove is provided at the bottom end of the collecting box corresponding to the sliding plate. Connecting frames are fixedly connected on both sides of the bottom end of the collecting box, and limit bolts are slidably arranged between the inner walls of the two connecting frames and the inner wall of the sliding plate, and nuts are arranged on the left and right parts of the limit bolts.

[0019] In order to keep the collection box closed and prevent the collected impurities from flowing back into the filter assembly, the above-mentioned solution is further optimized. The closing assembly includes a closing frame, which is arranged on the middle inner wall of the collection box. The left and right inner walls of the closing frame are hinged with closing plates, and the corresponding ends of the two closing plates are provided with installation grooves. Magnets and iron bars are respectively installed in the two installation grooves, and the magnets and iron bars are magnetically connected.

[0020] (III) Beneficial effects

[0021] Compared with the known public technology, the present invention provides a combustion chamber of a micro turbojet engine, which has the following beneficial effects:

[0022] In the present invention, the driving assembly delivers compressed air into the combustion cylinder through multiple air inlet holes on the combustion cylinder, and then delivers fuel into the combustion cylinder through multiple fuel delivery assemblies. After the compressed air and fuel are fully burned, the energy after combustion is discharged through the exhaust assembly and the driving assembly, thereby generating some power and completing the energy supply to other devices.

[0023] In the present invention, in the process of delivering compressed air into the combustion cylinder, a filter assembly is arranged on the outer side of the combustion cylinder to filter impurities mixed in the compressed air, and then the cleaning assembly is driven by the driving assembly to clean the filter assembly, so as to clean the impurities filtered out of the filter plate, and then a collecting assembly is arranged between the bottom of the filter assembly and the mounting cylinder to facilitate the collection and discharge of the particulate impurities cleaned by the cleaning assembly, thereby improving the long-term use of the combustion cylinder;

[0024] Therefore, the combustion chamber of the micro turbojet engine can filter the compressed air delivered into the combustion tube of the turbojet engine, thereby minimizing the particles that may be contained in the compressed air from entering the combustion tube and increasing the service life of the combustion tube. At the same time, the filtered particles can be collected and discharged, thereby increasing the service life of the combustion tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the combustion tube and multiple components in the present invention;

[0027] Figure 2It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0028] Figure 3 It is a schematic diagram of a partially cutaway three-dimensional structure of the present invention;

[0029] Figure 4 It is a schematic diagram of the three-dimensional structure of the combustion cylinder, the oil delivery assembly, the driving assembly and the fixing assembly in the present invention;

[0030] Figure 5 It is a partially cutaway three-dimensional structural schematic diagram of the cooperation between the filter assembly and the cleaning assembly in the present invention;

[0031] Figure 6 It is a schematic diagram of the three-dimensional structure of the cleaning component, the collecting component, the connecting component and the closing component in the present invention;

[0032] Figure 7 It is a schematic diagram of the three-dimensional structure of the combustion tube and the rotating shaft in the present invention.

[0033] The numbers in the figure represent: 100, oil delivery assembly; 200, exhaust assembly; 300, drive assembly; 400, fixing assembly; 500, filter assembly; 600, cleaning assembly; 700, collecting assembly; 800, connecting assembly; 900, closing assembly; 1, installation cylinder; 2, combustion cylinder; 101, installation body; 102, oil delivery pipeline; 103, fuel injection pipe; 104, ignition device; 201, exhaust cylinder; 202, jet nozzle; 203, sealing ring sleeve; 301, compressor wheel; 302, exhaust wheel; 303, rotating shaft; 304, cone; 305, exhaust pipe; 306, one-way valve; 401, fixed ring sleeve; 402, rotating plate; 501, mounting ring sleeve; 502, use ring plate; 503, filter ring plate; 601, scraper; 602, rotating ring; 603, rotating ball; 604, connecting rod; 605, rotating ring sleeve; 606, connecting rod; 701, collecting box; 702, collecting trough; 801, sliding plate; 802, connecting frame; 803, limit bolt; 901, closing frame; 902, closing plate; 903, magnet; 904, iron bar. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] For examples, see Figure 1 , Figure 2 , Figure 3 and Figure 7 A combustion chamber of a micro turbojet engine comprises a mounting tube 1 and a combustion tube 2. The combustion tube 2 is arranged inside the mounting tube 1. A plurality of air inlet holes are provided on the combustion tube 2. A plurality of oil delivery assemblies 100 are provided between the combustion tube 2 and the mounting tube 1. The oil delivery assembly 100 is used to deliver fuel to the combustion tube 2. The oil delivery assembly 100 comprises two mounting bodies 101. A mounting port is provided on one side of the mounting tube 1 and the combustion tube 2. The two mounting bodies 101 are mounted in the corresponding mounting ports. An oil delivery pipeline 102 is provided between the two mounting bodies 101. A side of the oil delivery pipeline 102 extending into the combustion tube 2 is connected to an oil injection pipe 103. An ignition device 104 is installed on a side of the oil delivery pipeline 102 close to the oil injection pipe 103. The left end of the mounting tube 1 is connected to an air inlet, and the right end of the mounting tube 1 is connected to an exhaust assembly 200. The exhaust assembly 200 is used to discharge the burned fuel and compressed gas. The exhaust assembly 200 comprises an exhaust tube 2 01, the exhaust tube 201 and the right end of the mounting tube 1 are interconnected, the right end of the exhaust tube 201 is connected with a jet port 202, and a sealing ring sleeve 203 is fixedly connected between the exhaust tube 201 and the combustion tube 2. The sealing ring sleeve 203 is used to prevent the compressed air from being discharged through the exhaust tube 201. The mounting tube 1 is installed between the compressor and the turbine of the turbojet engine, and the air inlet connected to the left end of the mounting tube 1 is connected to the compressor. Then, after the compressor compresses the air and transports it into the mounting tube 1, it enters the combustion tube 2 through multiple air inlet holes opened on the combustion tube 2, and then the fuel is transported into the combustion tube 2 through the oil pipeline 102 and the injection pipe 103, and then the ignition device 104 is used to ignite the fuel, so that it contacts with the air to generate huge heat, and when it is transported into the exhaust tube 201, it is finally transported into the turbine through the jet port 202 connected to the right end of the exhaust tube 201 to provide power for the turbine.

[0036] See also Figure 1 , Figure 2 , Figure 3 and Figure 7The drive assembly 300 is arranged inside the mounting tube 1 and the exhaust assembly 200, and the drive assembly 300 is arranged on the inner wall of the combustion tube 2, and is used to deliver the compressed gas into the combustion tube 2 and the burned gas into the exhaust assembly 200. A fixing assembly 400 is arranged between the drive assembly 300 and the mounting tube 1. The drive assembly 300 includes a compressor wheel 301 and an exhaust wheel 302, and a rotating shaft 303 is fixedly connected between the compressor wheel 301 and the exhaust wheel 302. Rotating ports are provided at both ends of the combustion tube 2, and the rotating shaft 303 is arranged between the two rotating ports. A cone 304 is fixedly connected to the right end of the exhaust wheel 302, and a plurality of exhaust pipes 305 are connected to the right end of the combustion tube 2. A check valve 306 is installed on each of the plurality of exhaust pipes 305. The fixing assembly 400 includes a fixing ring sleeve 401, and the fixing ring sleeve 401 is fixedly connected to the combustion tube 2 by a plurality of support rods. Connected to the interior of the mounting tube 1, the right end of the compressor wheel 301 is fixedly connected with a rotating piece 402, and a circular groove is opened on the inner wall of the fixed ring sleeve 401, and the rotating piece 402 is rotatably connected in the circular groove. During the operation of the turbojet engine, the compressor wheel 301 is driven by the driving device of the turbojet engine to rotate, and the compressed gas is evenly delivered into the mounting tube 1 through the compressor wheel 301, and then the exhaust wheel 302 is driven to rotate through the rotating shaft 303 to deliver the energy after combustion from the exhaust tube 201. At the same time, under the action of the one-way valve 306 installed on the exhaust pipe 305, the energy is discharged through multiple exhaust pipes 305, and at the same time, the external gas is prevented from entering the combustion tube 2, and under the rotational connection relationship between the fixed ring sleeve 401 and the rotating piece 402, the rotating shaft 303 is stably rotated between the inner walls of the combustion tube 2.

[0037] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6, the filter assembly 500 is arranged on the outside of the combustion tube 2, a cleaning assembly 600 is arranged in the filter assembly 500 and the driving assembly 300, a collecting assembly 700 is arranged between the bottom of the filter assembly 500 and the mounting tube 1, and the collecting assembly 700 is used to collect and discharge the cleaned particles, the filter assembly 500 includes a mounting ring sleeve 501, the mounting ring sleeve 501 is arranged on the outer wall of the combustion tube 2, the left and right ends of the mounting ring sleeve 501 are fixedly connected with a use ring plate 502, and a plurality of ventilation holes are provided on the two use ring plates 502, and a filter ring plate 503 is fixedly connected on the right side of the inner wall of the mounting ring sleeve 501, and the cleaning assembly 600 includes a scraper 601, and a rotating circular groove is provided on the use ring plate 502 on the left side, and a rotating circular groove is provided on the inner wall of the rotating circular groove. A rotating ring 602 is rotatably connected to the right end of the rotating ring 602, and a plurality of rotating balls 603 are rotatably connected to the right end of the rotating ring 602. The plurality of rotating balls 603 are rotatably arranged in a rotating circular groove. A connecting rod 604 is fixedly connected between the right end of the rotating ring 602 and the scraper 601. A rotating ring sleeve 605 is sleeved on the left part of the rotating shaft 303. A connecting rod 606 is fixedly connected between the rotating ring sleeve 605 and one side of the left end of the rotating ring 602. The collecting assembly 700 includes a collecting box 701. Use ports are provided on the bottom end of the mounting ring sleeve 501 and the bottom of the mounting cylinder 1. The collecting box 701 is installed in the two use ports. A collecting groove 702 is slidably arranged on the inner bottom wall of the collecting box 701. A sliding port is provided on the bottom side of one end of the collecting box 701. The collecting groove 702 is slidably arranged in the sliding port. A connecting assembly 800 is provided between the collecting trough 702 and the bottom wall of the collecting box 701, and the connecting assembly 800 includes a sliding sheet 801, and the sliding sheet 801 is fixedly connected to the bottom end of the collecting trough 702. A sliding groove is provided at the bottom end of the collecting box 701 corresponding to the sliding sheet 801. Both sides of the bottom end of the collecting box 701 are fixedly connected with connecting frames 802. Limiting bolts 803 are slidingly provided between the inner walls of the two connecting frames 802 and the inner walls of the sliding sheet 801. Nuts are provided on the left and right parts of the limiting bolts 803. A closing assembly 900 is provided on the middle inner wall of the collecting box 701. The closing assembly 900 includes a closing frame 901, and the closing frame 901 is provided on the middle inner wall of the collecting box 701. The left and right inner walls of the closing frame 901 are hinged with closing plates 90 2. The two closing plates 902 have mounting grooves at their corresponding ends, and magnets 903 and iron bars 904 are respectively installed in the two mounting grooves. The magnets 903 and iron bars 904 are magnetically connected. When the compressor wheel 301 transports the compressed air to the inside of the mounting cylinder 1, the compressed gas will pass through the use ring plates 502 fixedly connected to the left and right ends of the mounting ring sleeve 501 and the filter ring plate 503 fixedly connected to the right side of the inner wall of the mounting ring sleeve 501, so as to filter some particulate impurities mixed in the compressed air. At the same time, the inner diameter of the vent hole opened on the use ring plate 502 on the left side is larger than the inner diameter of the vent hole opened on the use ring plate 502 on the right side. At the same time, during the rotation of the rotating shaft 303, the rotating ring sleeve 605 is driven to rotate.Thus, the connecting rod 606 rotates along the center point of the rotating ring sleeve 605, and the rotating ring 602 rotates in the rotating circular groove opened on the use ring plate 502 located on the left side, thereby driving the connecting rod 604 and the scraper 601 to clean the filter ring plate 503, and the cleaned impurities will fall on the left and right inner walls of the closed frame 901 through the hinged closed plate 902. Then, after more and more impurities accumulate, the magnetic connection between the magnet 903 and the iron bar 904 is broken, so that it falls into the collection tank 702, and then the nuts set on the left and right parts of the limit bolt 803 are unscrewed to release the fixed connection between the inner walls of the two connecting frames 802 and the inner walls of the sliding sheet 801. Finally, the collection tank 702 is taken out to clean the impurities.

[0038] In summary, the operating principle of the combustion chamber of the micro turbojet engine is as follows: the air inlet connected to the left end of the mounting tube 1 is connected to the compressor, and then after the compressor compresses the air and delivers it into the mounting tube 1, it enters the combustion tube 2 through multiple air inlet holes opened on the combustion tube 2, and then the fuel is delivered into the combustion tube 2 through the oil pipeline 102 and the injection pipe 103, and then the ignition device 104 is used to ignite the fuel, so that it contacts with the air to generate huge heat, and then it is delivered into the exhaust tube 201, and finally delivered into the turbine through the jet port 202 connected to the right end of the exhaust tube 201, to provide power for the turbine, in the turbojet. During the operation of the engine, the compressor wheel 301 is driven by the driving device of the turbojet engine to rotate, and the compressed gas is evenly delivered into the installation cylinder 1 through the compressor wheel 301, and then the exhaust wheel 302 is driven to rotate through the rotating shaft 303 to deliver the energy after combustion from the exhaust cylinder 201. At the same time, under the action of the one-way valve 306 installed on the exhaust pipe 305, the energy is discharged through multiple exhaust pipes 305, and at the same time, the external gas is prevented from entering the combustion cylinder 2. In addition, under the rotational connection relationship between the fixed ring sleeve 401 and the rotating sheet 402, the rotating shaft 303 is stably rotated between the inner walls of the combustion cylinder 2, and the compressor wheel 301 is rotated to the exhaust cylinder 201. When the wheel 301 delivers the compressed air to the inside of the installation cylinder 1, the compressed gas will pass through the use ring plate 502 fixedly connected to the left and right ends of the installation ring sleeve 501 and the filter ring plate 503 fixedly connected to the right side of the inner wall of the installation ring sleeve 501, so as to filter some particulate impurities mixed in the compressed air. At the same time, the inner diameter of the vent hole opened on the use ring plate 502 on the left is larger than the inner diameter of the vent hole opened on the use ring plate 502 on the right. At the same time, during the rotation of the rotating shaft 303, the rotating ring sleeve 605 is driven to rotate, so that the connecting rod 606 rotates along the center point of the rotating ring sleeve 605, so that the rotating ring 602 It rotates in the rotating circular groove provided on the ring plate 502 located on the left side, thereby driving the connecting rod 604 and the scraper 601 to clean the filter ring plate 503, and the cleaned impurities will fall on the left and right inner walls of the closing frame 901 through the hinged closing plate 902, and then after more and more impurities accumulate, the magnetic connection between the magnet 903 and the iron bar 904 is broken, so that it falls into the collecting groove 702, and then the nuts provided on the left and right parts of the limit bolt 803 are unscrewed to release the fixed connection between the inner walls of the two connecting frames 802 and the inner walls of the sliding sheet 801, and finally the collecting groove 702 is taken out to clean the impurities.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A combustion chamber of a micro turbojet engine, comprising a mounting tube (1), characterized in that: Also includes: A combustion cylinder (2), the combustion cylinder (2) being arranged inside the mounting cylinder (1), the combustion cylinder (2) being provided with a plurality of air inlet holes, a plurality of oil delivery assemblies (100) being arranged between the combustion cylinder (2) and the mounting cylinder (1), the oil delivery assemblies (100) being used to deliver fuel to the combustion cylinder (2), the left end of the mounting cylinder (1) being connected to an air inlet, the right end of the mounting cylinder (1) being connected to an exhaust assembly (200), the exhaust assembly (200) being used to discharge burned fuel and compressed gas; A drive assembly (300), the drive assembly (300) being arranged inside the mounting cylinder (1) and the exhaust assembly (200), and the drive assembly (300) being arranged on the inner wall of the combustion cylinder (2), and being used for conveying compressed gas into the combustion cylinder (2) and conveying combusted gas into the exhaust assembly (200), and a fixing assembly (400) being arranged between the drive assembly (300) and the mounting cylinder (1); A filter assembly (500), the filter assembly (500) being arranged outside the combustion cylinder (2), a cleaning assembly (600) being arranged between the filter assembly (500) and the drive assembly (300), a collecting assembly (700) being arranged between the bottom of the filter assembly (500) and the mounting cylinder (1), the collecting assembly (700) being used to collect and discharge cleaned particles; The filter assembly (500) comprises a mounting ring sleeve (501), the mounting ring sleeve (501) being arranged on the outer wall of the combustion tube (2), the left and right ends of the mounting ring sleeve (501) being fixedly connected to a use ring plate (502), the two use ring plates (502) being provided with a plurality of ventilation holes, and the right side of the inner wall of the mounting ring sleeve (501) being fixedly connected to a filter ring plate (503).

2. The combustion chamber of a micro turbojet engine according to claim 1, characterized in that: The oil delivery assembly (100) comprises two mounting bodies (101), one side of the mounting cylinder (1) and the combustion cylinder (2) are both provided with mounting openings, the two mounting bodies (101) are mounted in the corresponding mounting openings, an oil delivery pipeline (102) is arranged between the two mounting bodies (101), the side of the oil delivery pipeline (102) extending into the combustion cylinder (2) is connected to an oil injection pipe (103), and an ignition device (104) is installed on the side of the oil delivery pipeline (102) close to the oil injection pipe (103).

3. The combustion chamber of a micro turbojet engine according to claim 1, characterized in that: The exhaust assembly (200) comprises an exhaust tube (201), wherein the exhaust tube (201) and the right end of the mounting tube (1) are connected to each other, the right end of the exhaust tube (201) is connected to an air jet port (202), and a sealing ring sleeve (203) is fixedly connected between the exhaust tube (201) and the combustion tube (2), and the sealing ring sleeve (203) is used to prevent compressed air from being discharged through the exhaust tube (201).

4. The combustion chamber of a micro turbojet engine according to claim 1, characterized in that: The driving assembly (300) comprises a compressor wheel (301) and an exhaust wheel (302), a rotating shaft (303) being fixedly connected between the compressor wheel (301) and the exhaust wheel (302), a rotating opening being provided at both ends of the combustion cylinder (2), the rotating shaft (303) being arranged between the two rotating openings, a cone (304) being fixedly connected to the right end of the exhaust wheel (302), a plurality of exhaust pipes (305) being connected to the right end of the combustion cylinder (2), and a check valve (306) being installed on each of the plurality of exhaust pipes (305).

5. The combustion chamber of a micro turbojet engine according to claim 4, characterized in that: The fixing assembly (400) comprises a fixing ring sleeve (401), wherein the fixing ring sleeve (401) is fixedly connected to the interior of the mounting tube (1) via a plurality of support rods, a rotating plate (402) is fixedly connected to the right end of the compressor wheel (301), a circular groove is formed on the inner wall of the fixing ring sleeve (401), and the rotating plate (402) is rotatably connected in the circular groove.

6. The combustion chamber of a micro turbojet engine according to claim 4, characterized in that: The cleaning assembly (600) comprises a scraper (601). A rotating circular groove is formed on the use ring plate (502) on the left side. A rotating ring (602) is rotatably connected to the inner wall of the rotating circular groove. A plurality of rotating balls (603) are rotatably connected to the right end of the rotating ring (602). The plurality of rotating balls (603) are rotatably arranged in the rotating circular groove. A connecting rod (604) is fixedly connected between the right end of the rotating ring (602) and the scraper (601). A rotating ring sleeve (605) is sleeved on the left part of the rotating shaft (303). A connecting rod (606) is fixedly connected between the rotating ring sleeve (605) and one side of the left end of the rotating ring (602).

7. The combustion chamber of a micro turbojet engine according to claim 1, characterized in that: The collecting assembly (700) comprises a collecting box (701), the bottom end of the mounting ring sleeve (501) and the bottom of the mounting tube (1) are both provided with use openings, the collecting box (701) is installed in the two use openings, a collecting groove (702) is slidably provided on the inner bottom wall of the collecting box (701), a sliding opening is provided on the bottom side of one end of the collecting box (701), the collecting groove (702) is slidably provided in the sliding opening, a connecting assembly (800) is provided between the collecting groove (702) and the bottom wall of the collecting box (701), and a closing assembly (900) is provided on the middle inner wall of the collecting box (701).

8. The combustion chamber of a micro turbojet engine according to claim 7, characterized in that: The connection assembly (800) comprises a sliding sheet (801), wherein the sliding sheet (801) is fixedly connected to the bottom end of the collection trough (702), a sliding slot is provided at the bottom end of the collection box (701) corresponding to the sliding sheet (801), and connection frames (802) are fixedly connected to both sides of the bottom end of the collection box (701), and a limit bolt (803) is slidably arranged between the inner walls of the two connection frames (802) and the inner wall of the sliding sheet (801), and nuts are arranged on the left and right parts of the limit bolt (803).

9. A combustion chamber of a micro turbojet engine according to claim 8, characterized in that: The sealing component (900) comprises a sealing frame (901), the sealing frame (901) being arranged on the middle inner wall of the collection box (701), the left and right inner walls of the sealing frame (901) being hingedly connected with sealing plates (902), the two sealing plates (902) being provided with mounting grooves at corresponding ends, the two mounting grooves being respectively provided with magnets (903) and iron bars (904), the magnets (903) and iron bars (904) being magnetically connected.

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