Axial-radial multi-cavity integrated rotor impact engine

Abstract

The application discloses an axial-radial multi-cavity integrated rotor impact engine and belongs to the technical field of power machinery. The application comprises a shell, an integrated long-cylindrical rotor, an ignition assembly, a labyrinth gas seal, a shaft neck end face seal and an axial segmented combustion chamber and the like. The shell and the rotor are provided with vertical pressure-bearing working surfaces to form a closed combustion chamber, and the gas impact force directly drives the rotor to rotate and work. The rotor is integrally formed and is provided with segmented support ribs in the axial direction. The labyrinth gas seal and the shaft neck end face seal constitute double sealing to prevent gas leakage. The combustion chamber adopts rectangular and elliptical cavity structures. Taking the axial two-cavity and radial four-cavity as an example, the rotor can be ignited and work multiple times in one rotation, and the number of cavities can be flexibly adjusted. The machine adopts rotor centrifugal self-circulation cooling, can be externally connected to a supercharged air inlet, has compact structure, reliable sealing and high efficiency, and is suitable for various power matching scenes.

Description

Technical Field

[0001] This invention relates to the field of rotary engine technology, and in particular to an axial and radial multi-cavity integrated rotary impact engine. Background Technology

[0002] Traditional Wankel rotary engines employ a triangular eccentric rotor structure, resulting in a complex rotor motion trajectory. Thermal deformation can easily lead to eccentric tilting, thus requiring a large clearance, typically 0.08–0.12 mm. This results in poor sealing performance and significant power leakage. Furthermore, traditional rotary engines often utilize internal combustion power structures, necessitating complex valve trains, compression chambers, and sealing structures. This leads to an overall complex structure, high manufacturing difficulty, and a high failure rate. Even at high speeds, thermal expansion can easily cause seizure or jamming.

[0003] In existing technologies, most rotors only have seals at both ends, and the axially segmented multi-chamber structure has no intermediate isolation seal. Adjacent chambers are prone to cross-flow and pressure interference, resulting in unstable power and reduced combustion efficiency. Moreover, most rotors rely on their own rotor structure to achieve air intake and cannot be connected to external booster, thus limiting the upper limit of power.

[0004] Conventional rotary engines use only a single cavity shape, resulting in a single form of power force. This makes it impossible to balance stability and explosive power. Furthermore, the cavity arrangement is limited, restricting the continuity, stability, and upper limit of power output. Traditional cooling systems use external water pumps for forced circulation, which results in a mismatch between cooling flow rate and engine speed. The heat dissipation efficiency is fixed and cannot be adaptively adjusted, making it difficult to meet the power requirements of high torque, high stability, and adaptability to multiple operating conditions. Summary of the Invention

[0005] The purpose of this invention is to provide an axial and radial multi-cavity integrated rotor impact engine, which solves the problems of existing rotor engines such as complex structure, strict requirements for fitting clearance, poor heat dissipation, insufficient operational stability, single cavity shape, poor power output adjustability, easy air leakage interference between cavities, inability to externally boost pressure to increase power, and inability of the cooling system to adaptively adjust with speed. It achieves the effects of no complex valve train mechanism, instantaneous impact power, axial + radial multi-cavity coordination, sealed isolation between cavities to prevent air leakage, matching of cavities with different shapes, external boosting intake to enhance power intensity, and speed-adaptive self-circulating heat dissipation.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An axial and radial multi-chamber integrated rotor impact engine includes a housing, an integrated long cylindrical rotor, bearings, a hollow medium flow main shaft, an ignition assembly, an air inlet, a fuel inlet, an exhaust port, a labyrinth seal, a journal end face seal, an oil slinger ring, segmented support ribs, an axially segmented combustion chamber, an arc-shaped heat dissipation surface, a vertical pressure-bearing working surface, a conical cooling channel, and a spiral groove. The integral long cylindrical rotor is a complete cylindrical structure that is machined as a single piece and cannot be disassembled or spliced. It is coaxially assembled inside the housing. In this embodiment, the exemplary diameter of the rotor and the inner diameter of the housing is 60mm, which is only an example and does not constitute a size limitation. The outer circle of the rotor and the inner wall of the housing can preferably adopt 4 to 6 precision fitting gaps of 0.04 to 0.06mm. This invention relies on a double-sealing protection system formed by the journal end face seal and the labyrinth seal. Therefore, the fitting clearance can be flexibly increased and adjusted according to the overall size, operating temperature, and power requirements, without being strictly limited to a very small range. Even if the clearance is appropriately increased, the sealing effect can still be guaranteed, effectively preventing rotor seizure and jamming due to thermal expansion. The rotor has a coaxial circular rotating structure, which expands uniformly when heated, without eccentric oscillation deformation, resulting in high stability of the fitting clearance. The rotor is integrally formed with multiple groups of segmented support ribs along the axial direction. These segmented support ribs divide the rotor into multiple independent working chambers along the axial direction, achieving segmented axial support and structural reinforcement of the rotor, and improving the rigidity of the long cylindrical rotor during high-speed rotation. The labyrinth seal and the segmented support ribs are integrally formed structures, with the labyrinth seal synchronously set on both sides of the segmented support ribs to achieve sealing and isolation between the chambers.

[0007] The inner wall of the housing and the outer circle of the integral long cylindrical rotor are divided into multiple sets of cavity structures along the rotor axis. At the same time, multiple sets of cavities can be arranged symmetrically or asymmetrically in the radial circumferential direction according to the usage requirements. The combustion chamber cavity shape includes two forms: rectangular cavity and elliptical cavity, which can be combined and used. When the rotor rotates to the corresponding position, the grooves in the housing and the rotor align and fit together to form multiple independent axial segmented combustion chambers; the side walls of the combustion chambers form vertical pressure-bearing working surfaces to withstand the instantaneous reaction force generated by the combustion expansion of the gas. The rotor edge is provided with an arc-shaped heat dissipation surface, which can remove excess material to reduce rotor weight, while increasing the edge heat dissipation area and improving heat dissipation effect.

[0008] An external turbocharger can be connected to the outside of the air inlet to pressurize the air. By supplying high-pressure air into the combustion chamber, the density of the oil-air mixture is increased, significantly enhancing the combustion power intensity and further improving the rotor drive torque and power output limit.

[0009] When the radial circumference adopts a symmetrical cavity arrangement, the rotor is subjected to uniform force and runs extremely smoothly with very low vibration and noise, making it suitable for long-term stable constant speed operation. When an asymmetrical cavity arrangement is adopted, alternating torque output can be formed, resulting in greater starting torque and stronger power burst, making it suitable for application scenarios that require instantaneous acceleration and heavy-load start-up.

[0010] The rectangular combustion chamber has straight sidewalls and a regular stress surface, which allows for direct torque transmission and strong and stable power output when the gas expands and impacts. The elliptical combustion chamber has a smooth transition, with less airflow disturbance, more complete combustion, lower operating noise, less thermal stress, and stronger resistance to high-temperature deformation. The combination of the two can balance power strength and smooth operation.

[0011] During operation, the rotor rotates continuously, sequentially aligning and connecting the air inlet, fuel inlet, and combustion chamber to complete the supply of air and fuel. An external turbocharger can be connected to the air inlet to introduce pressurized air, increasing the intake volume and mixture concentration. Subsequently, the ignition assembly instantaneously ignites the mixture in the combustion chamber, causing the fuel and air to burn rapidly and expand instantaneously. The reaction force generated by the instantaneous impact of the combustion gases directly acts on the vertical pressure-bearing working surface of the combustion chamber, providing rotational driving torque for the integrated long cylindrical rotor.

[0012] This device achieves power output through a single instantaneous combustion impact. After the work is completed, it continues to rotate with the rotor. The cavity is precisely aligned with the shell to fix the exhaust port. Combustion exhaust gas and residual pressure are directly and smoothly discharged through the exhaust port, eliminating the need for additional complex gas distribution and pressure relief structures. The rotor maintains continuous rotation due to its own inertia. The axial segmented cavity and the radial circumferential cavity can work together to generate power. Combustion chambers of different shapes can be combined to generate power. External pressurized air intake can further amplify the power effect, achieving continuous and stable power output and adapting to different power output characteristics.

[0013] The integrated long cylindrical rotor has journal end face seals at both ends of the journal, which are axial sealing structures at the ends of the journals, achieving overall axial end face sealing of the rotor. The labyrinth seal is a full-circle annular structure, synchronously set on both sides of each segment support rib and both sides of the axial segment combustion chamber, arranged radially along the rotor circumference. It achieves sealing isolation between chambers through multi-stage toothed throttling, completely preventing cross-flow of air between adjacent combustion chambers, pressure fluctuations, and mutual pressure relief. The labyrinth seal and segment support ribs are manufactured using a root-integrated molding process, resulting in high overall rigidity and structural stability. It will not break or fall off under high-speed rotation conditions, ensuring high operational reliability. The journal end face seal and the labyrinth seal structure are clearly distinguished and have distinct functions, ensuring stable and reliable sealing performance.

[0014] Under the instantaneous high pressure of combustion, the labyrinth seal relies on its toothed structure to form a multi-stage throttling and sealing effect, instantly locking the expansion pressure in the combustion chamber and ensuring that the reaction force is fully applied to the rotor's stress surface. After a single power operation is completed, the chamber rotates with the rotor to precisely align with the exhaust port, and the exhaust gas and residual pressure are directly discharged from the exhaust port, realizing an orderly power operation and fixed-point exhaust pressure relief working cycle.

[0015] During the rotor rotation, each combustion chamber passes through the intake ignition station and the power station in sequence, and then precisely aligns with the exhaust port to complete the exhaust gas emission and pressure relief, working continuously in a cycle. The device as a whole does not require an independent and complex gas distribution mechanism. It can automatically complete the complete working cycle of intake, ignition, power, and fixed-point exhaust by relying on the rotation of the rotor itself, with an extremely simple structure.

[0016] The integrated cylindrical rotor is internally equipped with a conical cooling channel and a spiral groove. The conical cooling channel has a tapered, gradually tapering structure along the rotor axis, with one end being a large inlet and the other a small outlet. The spiral groove is located inside the conical cooling channel, forming a spiral flow guide structure. The cooling medium enters from the large end of the rotor. When the rotor rotates at high speed, under the combined action of centrifugal force and the axial guidance of the spiral groove, the cooling medium flows continuously from the large end to the small end along the conical cooling channel, forming an internal self-circulating and self-pressurizing forced cooling effect. The higher the engine speed, the greater the centrifugal force, the faster the medium flow speed, and the cooling intensity automatically increases synchronously, achieving speed-adaptive heat dissipation. Through the cooperation of the centrifugal flow guide structure, the conical channel, and the spiral groove, the rotor achieves uniform and efficient heat dissipation, effectively suppressing high-temperature thermal deformation of the rotor, ensuring the stability of the fit clearance between the rotor and the housing, and maintaining the fit accuracy of the journal end face seal. An oil-throwing baffle ring is set at the rotor end to prevent internal medium from leaking along the axial direction, improving the cleanliness of the operating environment.

[0017] Furthermore, compared to traditional Wankel rotary engines that require strict control of extremely small clearances, this invention, relying on a double-sealing structure, significantly improves clearance tolerance, allows for flexible adjustment of the clearance, significantly reduces the difficulty of processing and assembly, and greatly improves sealing performance and operational reliability. Beneficial effects

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention adopts an instantaneous impact combustion power structure, which directly drives the rotor by relying on the instantaneous reaction force of combustion expansion. It eliminates the need for compression stroke and complex gas distribution mechanism, greatly simplifies the structure, reduces the number of overall parts, and significantly reduces the difficulty of processing and manufacturing. 2. This invention adopts a dual sealing structure of journal end face seal and labyrinth seal. The journal end face seal achieves overall axial sealing of the rotor, and the labyrinth seal is a full-circle annular toothed throttling structure, which is set on both sides of the segmented support ribs to completely isolate the combustion chamber and prevent cross-flow, ensuring stable power without pressure interference. 3. The labyrinth air seal and segmented support ribs are integrally molded, resulting in high structural rigidity and fundamentally avoiding the risk of breakage and detachment during high-speed operation, ensuring a safe and stable sealing system; 4. The rotor uses a conical cooling channel with a spiral groove to achieve self-circulation and self-pressurization of the medium. The higher the engine speed, the faster the medium circulation speed, the cooling intensity is adaptively improved, the heat dissipation efficiency is high and the heat dissipation is uniform. No additional power pump is required, which is energy-saving and has excellent heat dissipation effect. 5. The integrated long cylindrical rotor has multiple combustion chambers arranged in axial segments. The axial separation is achieved by segmented support ribs. At the same time, multiple cavities can be arranged symmetrically or asymmetrically in the radial and circumferential directions. With the segmented support ribs, the rigidity of the long rotor structure is greatly improved. It has strong resistance to bending and vibration at high speed and high running stability. 6. The rotor automatically completes the complete cycle of intake, ignition, power generation, and fixed-point exhaust by rotating on its own, without the need for valve train components such as camshafts and valves, resulting in a low failure rate and simple maintenance. 7. The combustion chamber adopts an instantaneous impact power mode, which does not require continuous sealing and pressure maintenance, has a higher tolerance for sealing accuracy, and is more convenient to process and assemble; 8. With the support of a double sealing structure, the clearance between the rotor and the housing can be flexibly increased and adjusted, effectively avoiding the risk of seizure due to thermal expansion. Compared with the shortcomings of traditional rotary engines, which have strict clearance requirements and are prone to seizure, the operational reliability is greatly improved. 9. The air inlet can be connected to an external turbocharger to achieve turbocharged air intake, effectively increasing the concentration of the air-fuel mixture and the intensity of combustion, significantly improving the power output and the upper limit of the speed, and providing strong power scalability; 10. The integrated long cylindrical rotor has a compact structure, small overall size, light weight, and high power density, making it suitable for various small power unit applications. 11. The journal end face seal and labyrinth seal structure are clearly distinguished, the sealing fit is stable, there are no problems such as local air leakage or uneven stress, and the operation is smoother; 12. An oil-throwing baffle ring is installed at the rotor end to effectively prevent leakage of lubricating oil and cooling medium, ensuring a clean internal operating environment, reducing wear from impurities, and extending the service life of the entire machine; 13. The operating noise of this invention is relatively controllable, with no knocking noise from traditional valve train mechanisms, and good operational stability; 14. It has a wide range of applicable fuels and can be used with various clean fuels such as gasoline, liquefied petroleum gas, and natural gas. It is highly versatile and environmentally friendly. 15. The entire machine has no easily damaged precision moving parts, resulting in minimal wear and high reliability during long-term operation, making it suitable for continuous operation over extended periods; 16. The axial segmentation and radial circumferential multi-cavity work together, and the symmetrical and asymmetrical arrangement can be flexibly selected. The power output is continuous, stable and highly adjustable. The overall structural design is reasonable, the power transmission is direct, the energy loss is low, and the power output is strong and stable. 17. The radially symmetrical cavity arrangement ensures uniform rotor force and extremely low vibration, making it suitable for constant speed and stable operation; the asymmetrical cavity arrangement can improve starting torque and instantaneous burst force, making it suitable for heavy load and acceleration conditions, and applicable to a wider range of scenarios. 18. The multi-chamber combination arrangement can realize the alternating work of multiple combustion chambers, resulting in close power connection, smaller speed fluctuations, and more consistent power output; 19. The system uses a combination of rectangular and elliptical combustion chambers. The rectangular chamber provides direct force and strong power, while the elliptical chamber ensures complete combustion, lower noise, and stronger resistance to thermal deformation, thus balancing power performance and operational reliability. 20. The rotor edge is provided with a circular arc heat dissipation surface, which can remove excess material to reduce rotor weight, while increasing the edge heat dissipation area and improving heat dissipation effect. Attached Figure Description

[0019] Figure 1 This is an axial sectional view of the overall structure of the present invention; Figure 2 This is a schematic cross-sectional view of the radially symmetrical cavity layout of the rotor in this invention; Figure 3 This is a schematic cross-sectional view of the radial asymmetric cavity layout of the rotor of the present invention.

[0020] Explanation of reference numerals in the attached figures ① Shell ② Integrated long cylindrical rotor ③ Hollow medium flow main shaft ④ Bearings ⑤ Exhaust port ⑥ Air inlet ⑦ Fuel inlet ⑧ Ignition assembly ⑨ Maze Sealing ⑩ Journal end face seal ⑪ Oil slinger ring ⑫ Segmented support reinforcement ⑭ Axially segmented combustion chamber ⑮ Arc-shaped heat dissipation surface 16 Vertical bearing working face ⑰ Conical cooling channel 18. Spiral groove Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings.

[0022] The housing of this invention adopts a split-and-locked assembly structure, without a split-and-locked structure, nor is it a fully enclosed integrated housing. Since the machine is equipped with a full-ring labyrinth seal, a split-and-locked structure would not allow for the lateral insertion of the labyrinth components, so a split-and-locked structure is necessary. This facilitates the top-to-bottom alignment and assembly of internal components such as the integrated long cylindrical rotor, the full-ring labyrinth seal, and the shaft end seal. After the housing is closed, it is locked in place with fasteners, making disassembly, inspection, and maintenance convenient. The structural design fully avoids the drawbacks of the assembly process, balancing structural rationality with ease of use and maintenance.

[0023] like Figure 1 , Figure 2 , Figure 3 As shown, the present invention includes a housing ①, an integral long cylindrical rotor ②, a hollow medium flow main shaft ③, a bearing ④, an exhaust port ⑤, an air inlet ⑥, a fuel inlet ⑦, an ignition assembly ⑧, a labyrinth seal ⑨, a journal end face seal ⑩, an oil slinger ring ⑪, segmented support ribs ⑫, an axially segmented combustion chamber ⑭, an arc-shaped heat dissipation surface ⑮, a vertical pressure-bearing working surface ⑯, a conical cooling channel ⑰, and a spiral groove ⑱.

[0024] The integrated long cylindrical rotor ② is a complete cylindrical structure integrally machined and cannot be disassembled or spliced. It is coaxially assembled inside the housing ①. In this embodiment, the outer diameter of the rotor is 60mm, which is only an example and does not constitute the only dimensional limitation of the present invention. The fit clearance between the outer circle of the rotor and the inner wall of the housing is preferably 0.04~0.06mm in this embodiment, and is sealed with 4~6 labyrinth seals ⑨. Thanks to the support of the double sealing structure, the clearance can be flexibly enlarged according to the engine size, operating temperature and power level in practical applications, effectively avoiding the risk of seizure due to thermal expansion, while still ensuring the sealing performance of the chamber. The rotor is a circular coaxial rotating structure, which expands outward evenly when heated, without eccentric swing or tilting deformation, and has high stability of the fit clearance. Compared with the 0.08~0.12mm fit clearance of the traditional Wankel rotary engine, the present invention has a significantly improved clearance tolerance, a wider adjustable range of clearance, and is less prone to seizure and jamming.

[0025] The inner wall of the housing ① and the outer circle of the integral long cylindrical rotor ② are provided with multiple sets of grooves in segments along the rotor axis. At the same time, multiple sets of grooves can be provided symmetrically or asymmetrically in the radial circumferential direction. In this embodiment, as an example, a layout with two axially arranged chambers and four radially arranged chambers is adopted. The rotor can ignite and perform work 32 times in turn in one revolution. This arrangement is only an example and is not the only limited structure. In practice, the number of chambers and the number of ignition times can be increased or decreased according to the size of the model. The cycle is alternating and continuous, and the power output is dense and strong. The shape of the chamber includes two structures: rectangular and elliptical. When the rotor rotates to the corresponding position, the grooves in the shell and the rotor align and fit together, forming multiple independent axial segmented combustion chambers⑭; the inner wall of the shell and the integral long cylindrical rotor body are both provided with vertical pressure-bearing working surfaces⑯; the vertical pressure-bearing working surfaces of the shell and the rotor are directly opposite each other, forming a sealed combustion chamber space; the instantaneous impact force generated by the combustion expansion of the gas acts simultaneously between the vertical pressure-bearing working surfaces of the shell and the rotor, with bidirectional straight-face limiting pressure bearing and no tilting force relief angle. It is necessary to rely on the vertical pressure-bearing working surfaces on both the shell and the rotor to form an effective driving torque. Without either one, the rotor cannot be driven to do work normally; the vertical pressure-bearing working surface on the rotor side is integrally cut and formed with the integral long cylindrical rotor, without splicing, welding, or post-assembly inlay. It has high strength, is resistant to high-pressure impact, and will not deform or crack after long-term use. It is specially designed to bear the instantaneous reaction force generated by the combustion expansion of the gas.

[0026] The rotor edge is provided with an arc-shaped heat dissipation surface⑮, which can remove excess material to reduce rotor weight, while increasing the edge heat dissipation area and improving heat dissipation effect.

[0027] Among them, an external turbocharger can be connected to the outside of the air inlet ⑥ to boost the air pressure. By supplying high-pressure air into the combustion chamber, the density of the oil-air mixture is increased, and the combustion power intensity is enhanced. When the radial circumference adopts a symmetrical cavity arrangement, the rotor is subjected to uniform force and runs extremely smoothly with very low vibration and noise, making it suitable for long-term stable constant speed operation. When an asymmetrical cavity arrangement is adopted, alternating torque output can be formed, which significantly improves low-speed starting torque and instantaneous burst force without increasing the fluctuation of the maximum speed, making it suitable for heavy-load and acceleration conditions and applicable to a wider range of scenarios. The rectangular combustion chamber has straight sidewalls and a regular stress surface, which allows for direct torque transmission and strong and stable power output when the gas expands and impacts. The elliptical combustion chamber has a smooth transition, with less airflow disturbance, more complete combustion, lower operating noise, less thermal stress, and stronger resistance to high-temperature deformation. The combination of the two can balance power strength and smooth operation.

[0028] Working process: The rotor rotates continuously, sequentially aligning and connecting the air inlet ⑥ and fuel inlet ⑦ with the combustion chamber to achieve synchronous supply of air and fuel; pressurized air can be introduced into the air inlet through an external booster to increase the intake volume and mixture concentration; then the ignition assembly ⑧ instantaneously ignites the mixture in the combustion chamber, and the fuel and air burn rapidly and expand instantly. The reaction force generated by the instantaneous impact of the combustion gas acts directly and vertically on the vertical pressure-bearing working surface ⑯, providing a stable rotational driving torque for the integrated long cylindrical rotor ②.

[0029] After the power impact is completed, the rotor continues to rotate, and the combustion chamber is precisely aligned with the exhaust port ⑤ of the casing. The exhaust gas generated by combustion and the internal residual pressure are directly discharged smoothly through the exhaust port to relieve pressure, completing a complete working cycle; the rotor can maintain continuous rotation by relying on its own inertia. The axial segmented cavity and the radial circumferential cavity can work together. The radial cavity can be flexibly arranged symmetrically or asymmetrically according to the usage requirements. It can also be combined with rectangular or elliptical combustion chambers. External booster intake can further amplify the power effect, achieve continuous and stable power output, and adapt to different power output characteristics.

[0030] The two ends of the integrated long cylindrical rotor ② are provided with journal end face seals ⑩. The journal end face seals are axial sealing structures at the ends of the journals, thereby achieving overall axial end face sealing of the rotor. The labyrinth seal ⑨ is a full-circle annular toothed structure, synchronously set on both sides of each segmented support rib ⑫ and both sides of the axial segmented combustion chamber ⑭, arranged radially along the rotor circumference; the labyrinth seal ⑨ is integrally formed with the root of the segmented support rib ⑫, and the tooth groove direction is set along the combustion chamber pressure release direction, which can achieve sealing and isolation between chambers through multi-stage tooth groove throttling, completely preventing mutual air leakage, pressure fluctuation, and mutual pressure relief between adjacent combustion chambers; No additional independent seals are added to the two sides of the segmented support rib ⑫. The labyrinth air seal and the root of the segmented support rib are integrally formed and processed, resulting in strong overall rigidity and stable structure. It will not break or fall off under high-speed rotation conditions, thus improving the safety and reliability of the whole machine operation. Under the instantaneous high pressure condition of combustion, the labyrinth seal forms a multi-stage throttling effect through its toothed structure, achieving instantaneous sealing and pressure locking, effectively locking the expansion pressure in the combustion chamber, and ensuring that the reaction force acts fully vertically on the vertical pressure-bearing working surface of the rotor. After a single power operation is completed, the chamber rotates with the rotor to align with the exhaust port, and the exhaust gas and residual pressure are directly discharged at a fixed point to relieve pressure, allowing for continuous operation in a cycle.

[0031] During rotor rotation, the axially and radially arranged axially segmented combustion chambers ⑭ sequentially complete the entire process of air intake, pressurized fuel supply, ignition impact power, and fixed-point exhaust pressure relief. The multiple chambers work alternately and orderly, resulting in continuous and stable power output. The rotor is equipped with a conical cooling channel ⑰ and a spiral groove ⑱. The cooling medium relies on centrifugal force to form a self-circulation. The higher the speed, the stronger the heat dissipation. It adaptively controls the temperature and suppresses thermal deformation. An oil-slinging baffle ring is provided at the end of the rotor to prevent the leakage of medium and lubricating oil, keep the cavity clean, reduce wear, and extend service life.

[0032] The entire unit requires no complex gas distribution mechanism or external cooling drive components, featuring a simple structure, reliable operation, convenient maintenance, stable performance over long-term use, and wide applicability.

Claims

1. An axially and radially multi-cavity integrated rotor impact engine, characterized in that, Includes housing (①), integrated long cylindrical rotor (②), hollow medium flow main shaft (③), bearing (④), exhaust port (⑤), air inlet (⑥), fuel inlet (⑦), ignition assembly (⑧), labyrinth seal (⑨), journal end face seal (⑩), oil slinger ring (⑪), segmented support rib (⑫), axial segmented combustion chamber (⑭), arc-shaped heat dissipation surface (⑮), vertical pressure-bearing working surface (⑯), conical cooling channel (⑰), and spiral groove (⑱); The integral long cylindrical rotor (②) is integrally machined and coaxially assembled inside the housing (①); The vertical pressure-bearing working surface (⑯) is simultaneously set on the inner side of the shell (①) and on the integral long cylindrical rotor (②) body. The vertical pressure-bearing working surface (⑯) on the shell and the rotor are directly opposite each other and form an axial segmented combustion chamber (⑭). The combustion and expansion impact force of the gas acts on the vertical pressure-bearing working surface (⑯), driving the integrated long cylindrical rotor (②) to rotate and do work; The integrated long cylindrical rotor (②) is provided with multi-segmented support ribs (⑫) in the axial direction. The segmented support ribs (⑫) are integrally formed with labyrinth air seals (⑨) on both sides. The rotor is provided with journal end face seals (⑩) at both ends. The rotor is provided with arc-shaped heat dissipation surface (⑮) on the outer edge. The rotor is provided with conical cooling channels (⑰) inside. The conical cooling channels (⑰) are provided with spiral grooves (⑱).

2. The axial-radial multi-cavity integrated rotor impact engine according to claim 1, characterized in that, The shell (①) adopts a split-and-lock structure.

3. The axial-radial multi-cavity integrated rotor impact engine according to claim 1, characterized in that, The labyrinth gas seal (⑨) is annular and toothed, integrally formed with the segmented support rib (⑫), and is used to seal and isolate gas between adjacent combustion chambers.

4. The axial-radial multi-cavity integrated rotor impact engine according to claim 1, characterized in that, The journal end face seal (⑩) and the labyrinth seal (⑨) work together to form a double sealing structure.

5. The axial-radial multi-cavity integrated rotor impact engine according to claim 1, characterized in that, The vertical pressure-bearing working surface (⑯) on the rotor and the integral long cylindrical rotor (②) are integrally cut and formed without splicing or welding, and are the core force-bearing and work-generating structure.

6. The axial-radial multi-cavity integrated rotor impact engine according to claim 1, characterized in that, The axially segmented combustion chamber (⑭) has two cavity structures: rectangular and elliptical.

7. The axial-radial multi-cavity integrated rotor impact engine according to claim 1, characterized in that: The axial combustion chamber has at least two chambers, and the number of chambers can be increased as the body length extends; the radial combustion chamber has at least two chambers.

8. The axial-radial multi-cavity integrated rotor impact engine according to claim 1, characterized in that, The conical cooling channel (⑰) combined with the spiral groove (⑱) relies on centrifugal force to form a self-circulating cooling channel, achieving adaptive cooling at rotational speed.

9. The axial-radial multi-cavity integrated rotor impact engine according to claim 1, characterized in that, The air inlet (⑥) can be connected to an external booster device to achieve boosted air intake.

10. The axial-radial multi-cavity integrated rotor impact engine according to claim 1, characterized in that, The oil slinger ring (⑪) is located at the end of the rotor to prevent the medium from leaking out and to ensure clean internal operation.

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