Single-stroke rotor engine

Abstract

The invention discloses a single-stroke rotor engine and belongs to the technical field of engines, the single-stroke rotor engine comprises a cylinder body, a rotor and a driving shaft, the interior of the cylinder body is cylindrical, a sealing end cover is arranged at the end of the cylinder body, the rotor is located in the cylinder body, the side of the rotor extends to form a rotor piston, and the driving shaft penetrates through the sealing end cover and is in driving connection with the rotor; the driving shaft is further in driving connection with a driving rod, the driving rod is in driving connection with a special-shaped ratchet wheel and an air inlet device, the cylinder body is provided with an exhaust port and an air inlet, and the air inlet is communicated with the air inlet device; the cylinder body is provided with a guide frame and a cylinder body inclined opening, a baffle is movably arranged between the guide frame and the cylinder body inclined opening, the special-shaped ratchet wheel is in driving connection with the baffle, the cylinder body is movably provided with a baffle plate corresponding to the air inlet and the cylinder body inclined opening, or the cylinder body is provided with a movable sealing plate, and the special-shaped ratchet wheel is in driving connection with the movable sealing plate. The working stages of the rotor and the rotor piston of the structure occupy most of the working stages, meanwhile, all power can act on the rotor piston, and the power output efficiency is high.

Description

Technical Field

[0001] The present invention relates to the technical field of engines, and specifically to a single-stroke rotary engine. Background Art

[0002] Traditional reciprocating piston engines are generally multi-stroke engines. They utilize the reciprocating linear motion of the piston in the cylinder and convert the linear motion of the piston into the rotation of the crankshaft through the crankshaft. The working process of a common multi-stroke engine includes: intake stroke, the piston moves downward driven by an initial external force. At this time, the intake valve opens and the exhaust valve closes, and gas and fuel enter the cylinder; compression stroke, the intake valve closes and the piston moves upward to compress the air and fuel in the cylinder; power stroke, the spark plug ignites the fuel in the cavity, and the pressure in the cylinder rises sharply, pushing the piston downward. The movement of the piston drives the crankshaft to rotate; exhaust stroke, the piston moves upward from the bottom, the exhaust valve opens, and the exhaust gas in the cylinder is discharged, and then enters the next cycle. Among the multiple strokes of a multi-stroke engine, only the power stroke is useful, and the remaining strokes need to use an inertial flywheel or the power of other cylinders to drive the piston to move, which also limits the fuel efficiency of the multi-stroke engine.

[0003] A rotary engine is an engine different from the traditional reciprocating piston engine. It uses the rotary motion of a triangular rotor to control compression and discharge, and directly uses the rotary motion of the triangular rotor to drive the output shaft to rotate. The triangular rotor divides the cylinder into three independent spaces, and each of the three spaces successively completes the processes of intake, compression, power, and exhaust. When the triangular rotor rotates one week, the engine ignites and does work three times. Similarly, in the working strokes of a traditional rotary engine, only the power stroke is useful, and the remaining strokes are realized by using the inertial rotation of the rotor, and the fuel efficiency is extremely low.

[0004] Therefore, it is necessary to further improve. Summary of the Invention

[0005] The present invention aims to provide a single-stroke rotary engine, which is composed of a double-cylinder compressed air cylinder sharing a driving shaft and compressing air on one side to supply fuel combustion and work on the other side, and one side of the compressed air cylinder can also be cancelled and replaced with high-temperature and high-pressure steam from a boiler expanding to push the piston rotor driving shaft to rotate and do work, so as to overcome the deficiencies in the prior art.

[0006] A single-stroke rotary engine designed for this purpose includes a cylinder block, a rotor, and a drive shaft. The interior of the cylinder block is cylindrical, and a sealing end cover is provided at its end. The rotor is located within the cylinder block, and a rotor piston extends from its side. The drive shaft passes through the sealing end cover and is drivingly connected to the rotor. A drive rod is also drivingly connected to the drive shaft. The drive rod is drivingly connected to a special-shaped ratchet and an intake device. An exhaust port and an intake port are provided on the cylinder block, and the intake port is in communication with the intake device.

[0007] A guide frame and a cylinder block inclined port are provided on the cylinder block. A baffle is movably arranged between the guide frame and the cylinder block inclined port. The special-shaped ratchet is drivingly connected to the baffle. A shutter is movably arranged on the cylinder block corresponding to the intake port and the cylinder block inclined port.

[0008] The above-mentioned drive rod can drive the special-shaped ratchet to move through the drive of the drive shaft. When the special-shaped ratchet moves, it can drive the baffle to rise and avoid the rotor piston, so that the rotor piston can cross the baffle. After the rotor piston crosses the baffle, the baffle descends and resets under the pressure of the elastic member, and together with the rotor and the rotor piston, it forms a working chamber. Subsequently, the drive rod can also drive the intake device to introduce the required high-pressure gas into the working chamber through the intake port. When the gas in the intake device is mixed with the gas in the working chamber to a certain extent, the drive rod drives the intake device to close. The mixed gas in the working chamber can generate an expansion force and act on the rotor piston, thereby realizing the working rotation of the rotor and the rotor piston in the cylinder block. The rotor and the rotor piston complete a working cycle when they rotate one circle in the cylinder block, and the working stage occupies most of it (300 degrees of the inner circumference of the cylinder block), greatly improving the power output efficiency. The exhaust port can discharge the exhaust gas generated by the work of the rotor and the rotor piston out of the cylinder block to ensure the cleanliness inside the cylinder block. And the rotor and the rotor piston are part of the working chamber. The rotor piston extends linearly, and the power generated by the expansion of the mixed gas in the working chamber can all act on the rotor piston, so as to ensure that the rotor piston can obtain the maximum torque at any time and drive the rotor to rotate, greatly improving the power output efficiency. In addition, the shutter can block the intake port and the cylinder block inclined port when the rotor piston crosses the baffle, playing a protective role. And the baffle can move in a guiding manner on the guide frame, effectively limiting the movement position of the baffle and ensuring the effective formation of the working chamber.

[0009] Alternatively, a movable sealing plate is provided on the cylinder block, and the special-shaped ratchet is drivingly connected to the movable sealing plate.

[0010] The above-mentioned driving rod can drive the special-shaped ratchet to move through the drive of the active shaft. When the special-shaped ratchet is active, it can drive the movable sealing plate to rise to avoid the rotor piston, so that the rotor piston can pass over the movable sealing plate. After the rotor piston passes over the movable sealing plate, the movable sealing plate is reset due to the pressure drop of the elastic part, and together with the rotor and the rotor piston, a working chamber is formed. Then the driving rod can also drive the intake device to let the required high-pressure gas enter the working chamber through the air inlet. When the gas of the intake device and the gas in the working chamber are mixed to a certain extent, the driving rod drives the intake device to close, and the mixed gas in the working chamber can generate an expansion force and act on the rotor piston, thereby realizing the working rotation of the rotor and the rotor piston in the cylinder body. The rotor and the rotor piston complete a working cycle when they rotate one circle in the cylinder body.

[0011] The guide frame is provided with a baffle elastic member, and the drive rod is provided with a first drive unit. The drive rod is driven by the active shaft to rotate outside the cylinder body, and interacts with or separates from the special-shaped ratchet through the first drive unit when rotating. When the special-shaped ratchet and the first drive unit are separated from each other, the baffle always extends toward the direction of the rotor through the elastic force of the baffle elastic member, acts on the rotor, and forms a reactive zone between the baffle and the exhaust port. The special-shaped ratchet swings outside the cylinder body through the action of the first drive unit, and drives the baffle to overcome the elastic force of the baffle elastic member and enter the guide frame when swinging, and separates from the rotor.

[0012] Alternatively, the movable sealing plate is swingably arranged in the cylinder body, and the cylinder body is provided with a movable sealing plate elastic member corresponding to the movable sealing plate, and a first driving part is provided on the driving rod, and the driving rod is driven by the active shaft to rotate outside the cylinder body, and interacts with or separates from the special-shaped ratchet through the first driving part when rotating; when the special-shaped ratchet is separated from the first driving part, the movable sealing plate always swings in the direction of the rotor through the elastic force of the movable sealing plate elastic member, acts on the rotor, and forms a reactive zone between the movable sealing plate and the exhaust port; the special-shaped ratchet is swung outside the cylinder body by the action of the first driving part, and drives the movable sealing plate to overcome the elastic force of the movable sealing plate elastic member and swing inside the cylinder body when swinging, and the movable sealing plate is separated from the rotor, and blocks the air inlet, and avoids each other with the rotor piston.

[0013] The cylinder body is provided with a fuel injection port and a spark plug, the fuel injection port and the spark plug are arranged adjacent to each other and are respectively located outside the reactive zone, and the air intake port is located outside the reactive zone and is arranged at a position close to the fuel injection port or the spark plug.

[0014] An oil supply device and an oil receiving tank are provided outside the cylinder block. An oil seepage tank and an oil receiving port are provided inside the cylinder block. The oil seepage tank is located in the reactive power area and is arranged near the exhaust port. The oil seepage tank is communicated with the oil supply device. The oil receiving port is located in the reactive power area and is communicated with the oil receiving tank.

[0015] A baffle elastic member is provided on the cylinder block corresponding to the baffle. One end of the baffle is rotatably matched with the cylinder block, and the other end always elastically swings towards the air inlet and the inclined port of the cylinder block through the baffle elastic member. The baffle blocks the air inlet and the inclined port of the cylinder block when the baffle rises and enters the guide frame.

[0016] The air intake device includes a cylinder, which is fixedly arranged outside the cylinder block and is provided with a partition plate, an air chamber switch and a linkage rod assembly. The cylinder is separated by the partition plate into an air compression chamber and an air intake chamber. The air compression chamber is communicated with the air supply end, the air intake chamber is communicated with the air intake port, a partition plate opening is provided on the partition plate, and the air compression chamber and the air intake chamber are communicated with each other through the partition plate opening. The air chamber switch is cooperatively connected with the linkage rod assembly. A second driving portion is provided on the driving rod, and when rotating, it interacts with or separates from the linkage rod assembly through the second driving portion, so as to drive the air chamber switch to open and close the partition plate opening.

[0017] The linkage rod assembly includes a switch sliding rod, an intermediate transmission rod and a switch swing rod. A swing driving portion, a switch driving portion and a switch swing rod elastic member are provided on the switch swing rod. The switch sliding rod is slidably arranged on the cylinder and is cooperatively connected with the air chamber switch. The intermediate transmission rod is located outside the cylinder and is cooperatively connected with the switch sliding rod. When the driving rod rotates, it interacts with or separates from the swing driving portion through the second driving portion.

[0018] When the swing driving portion is separated from the second driving portion, the switch swing rod always acts on the intermediate transmission rod through the switch driving portion by the elastic force of the switch swing rod elastic member. The intermediate transmission rod drives the switch sliding rod to drive the air chamber switch to close the partition plate opening through the action of the switch driving portion.

[0019] When the swing driving portion interacts with the second driving portion, the switch swing rod swings outside the cylinder, and when swinging, it overcomes the elastic force of the switch swing rod elastic member, and the switch driving portion on it is separated from the intermediate transmission rod. When the switch driving portion is separated from the intermediate transmission rod, the air chamber switch opens the partition plate opening due to the air pressure in the air compression chamber.

[0020] An inclined portion is provided at the upper end of the baffle. Baffle positioning grooves are respectively provided on the outer side, lower end, and the inclined portion of the baffle. A baffle seal is provided on the baffle positioning groove. The shape of the inclined port of the cylinder block matches the shape of the inclined portion. The baffle is in sealing cooperation with the cylinder block, the rotor, and the inclined port of the cylinder block through the baffle seal. The baffle seal is formed by splicing at least two sections, and the adjacent splicing parts are in a stepped concave-convex fit. The baffle positioning groove is provided with a sealing elastic member corresponding to at least two sections of the baffle seal. At least two sections of the baffle seal are always elastically movable towards the outer side of the baffle positioning groove through the sealing elastic member.

[0021] Alternatively, positioning grooves are provided at the upper and lower ends and the left and right sides of the movable sealing plate. A movable sealing plate seal is provided on the positioning groove of the movable sealing plate. The movable sealing plate is in sealing cooperation with the cylinder block and the rotor through the movable sealing plate seal. The movable sealing plate seal is formed by splicing at least two sections, and the adjacent splicing parts are in a stepped concave-convex fit. The positioning groove of the movable sealing plate is provided with a sealing elastic member corresponding to at least two sections of the movable sealing plate seal. At least two sections of the movable sealing plate seal are always elastically movable towards the outer side of the positioning groove of the movable sealing plate through the sealing elastic member. At least two sections of the movable sealing plate seal are respectively provided with grooves of the movable sealing plate seal, and the grooves of the movable sealing plate seal are arranged towards the outer side of the positioning groove of the movable sealing plate.

[0022] Piston positioning grooves are respectively provided on the outer side and the upper end of the rotor piston. A piston seal is provided on the piston positioning groove. The rotor piston is in sealing cooperation with the cylinder block through the piston seal. The piston seal is formed by splicing at least two sections, and the adjacent splicing parts are in a stepped concave-convex fit. The piston positioning groove is provided with a sealing elastic member corresponding to at least two sections of the piston seal. At least two sections of the piston seal are always elastically movable towards the outer side of the piston positioning groove through the sealing elastic member.

[0023] A cylinder block seal is provided on the cylinder block. The rotor is in sealed rotational cooperation with the cylinder block through the cylinder block seal.

[0024] Alternatively, a collar is sleeved outside the rotor. A first toothed seal and a second toothed seal are respectively provided on both sides of the collar. The first toothed seal is fixedly sleeved on one side of the collar, and the second toothed seal is movably sleeved on the other side of the collar. The first toothed seal and the second toothed seal are in sealing engagement with each other. The rotor is in sealed rotational cooperation with the cylinder block through the first toothed seal and the second toothed seal.

[0025] Of the present invention. Description of the Drawings

[0026] Figures 1-4 The working flow chart of the first embodiment of the present invention.

[0027] Figure 5 The schematic side sectional structure diagram of the first embodiment of the present invention.

[0028] Figure 6 The schematic assembly structure diagram of the rotor, rotor piston and piston seal of the first embodiment.

[0029] Figure 7 The schematic exploded structure diagram of the rotor, rotor piston and piston seal of the first embodiment.

[0030] Figure 8 The schematic assembly structure diagram of the baffle and baffle seal of the first embodiment.

[0031] Figure 9 The schematic exploded structure diagram of the baffle and baffle seal of the first embodiment.

[0032] Figure 10 The schematic assembly sectional structure diagram of the baffle and baffle seal of the first embodiment.

[0033] Figure 11 The schematic exploded structure diagram of the piston seal / baffle seal of the first embodiment.

[0034] Figure 12 The schematic exploded structure diagram of the piston seal / baffle seal of the first embodiment from another perspective.

[0035] Figure 13 The schematic structure diagram of the partition opening of the intake device of the first embodiment when it is closed.

[0036] Figure 14 The schematic structure diagram of the partition opening of the intake device of the first embodiment when it is open.

[0037] Figure 15 The schematic structure diagram of the partition opening of the intake device of the first embodiment when it is open from another perspective.

[0038] Figure 16 The schematic assembly sectional structure diagram of the rotor, rotor piston, collar, first toothed seal and second toothed seal of the first embodiment.

[0039] Figure 17 The schematic assembly structure diagram of the first toothed seal and second toothed seal of the first embodiment.

[0040] Figures 18-21 The working flow chart of the second embodiment of the present invention.

[0041] Figure 22Exploded structural schematic diagram of the movable seal plate and the movable seal plate seal of the second embodiment. Detailed implementation manners

[0042] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following will describe the detailed implementation manners of the present invention in conjunction with the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0043] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. Embodiment

[0044] Refer to Figures 1-17 , this single-stroke rotary engine includes a cylinder block 1, a rotor 2, and a driving shaft 3. The inside of the cylinder block 1 is cylindrical, and a sealing end cover is provided at its end. The rotor 2 is located inside the cylinder block 1, and a rotor piston 4 extends from its side. The driving shaft 3 passes through the sealing end cover and is drivingly connected to the rotor 2. A driving rod 5 is also drivingly connected to the driving shaft 3. The driving rod 5 is drivingly connected to a special-shaped ratchet 6 and an intake device 7. An exhaust port 8, a guide frame 9, an intake port 10, and a cylinder block inclined port 39 are provided on the cylinder block 1. A baffle 11 is movably arranged between the guide frame 9 and the cylinder block inclined port 39. The special-shaped ratchet 6 is drivingly connected to the baffle 11. The intake port 10 is communicated with the intake device 7. A shielding baffle 12 is movably arranged on the cylinder block 1 corresponding to the intake port 10 and the cylinder block inclined port 39.

[0045] In this embodiment, the drive rod 5 can drive the special-shaped ratchet wheel 6 to move through the drive of the drive shaft 3. When the special-shaped ratchet wheel 6 moves, it can drive the baffle 11 to rise and avoid the rotor piston 4, so that the rotor piston 4 can cross the baffle 11. After the rotor piston 4 crosses the baffle 11, the baffle 11 is reset by the pressure of the elastic member and jointly forms a working chamber with the rotor 2 and the rotor piston 4. Subsequently, the drive rod 5 can also drive the intake device 7 to enter the required gas into the working chamber through the intake port 10. When the gas in the intake device 7 is mixed with the gas in the working chamber to a certain extent, the drive rod 5 drives the intake device 7 to close. The mixed gas in the working chamber can generate an expansion force and act on the rotor piston 4, thereby realizing the working rotation of the rotor 2 and the rotor piston 4 in the cylinder block 1. The rotor 2 and the rotor piston 4 complete a working cycle when they rotate one circle in the cylinder block 1, and the working stage occupies most of the cycle (300 degrees of the internal circumference of the cylinder block), greatly improving the power output efficiency. The exhaust port 8 can discharge the waste gas generated by the work of the rotor 2 and the rotor piston 4 out of the cylinder block 1 to ensure the cleanliness inside the cylinder block 1. And the rotor 2 and the rotor piston 4 are part of the working chamber. The rotor piston 4 extends linearly, and the power generated by the expansion of the mixed gas in the working chamber can all act on the rotor piston 4, so as to ensure that the rotor piston 4 can obtain the maximum torque at any time and drive the rotor 2 to rotate, greatly improving the power output efficiency. In addition, the shielding baffle 12 can shield the intake port 10 and the inclined port 39 of the cylinder block when the rotor piston 4 crosses the baffle 11, playing a protective role. And the baffle 11 can move in a guided manner on the guide frame 9, thereby effectively limiting the movement position of the baffle 11 and ensuring the effective formation of the working chamber.

[0046] A baffle elastic member 13 is arranged on the guide frame 9, and a first driving part 5.1 is arranged on the drive rod 5. The drive rod 5 rotates outside the cylinder block 1 through the drive of the drive shaft 3 and interacts with or separates from the special-shaped ratchet wheel 6 through the first driving part 5.1 when rotating.

[0047] When the special-shaped ratchet wheel 6 is separated from the first driving part 5.1, the baffle 11 always extends towards the rotor 2 through the elastic force of the baffle elastic member 13 and acts on the rotor 2, and a non-working area is formed between the baffle 11 and the exhaust port 8.

[0048] The special-shaped ratchet wheel 6 swings outside the cylinder block 1 through the action of the first driving part 5.1, and drives the baffle 11 to overcome the elastic force of the baffle elastic member 13 and enter the guide frame 9 when swinging, and separates from the rotor 2.

[0049] In this embodiment, the baffle elastic member 13 is a compression spring, with one end elastically acting on the guide frame 9 and the other end elastically acting on the baffle 11.

[0050] In the natural state, the baffle 11 always protrudes towards the rotor 2 from the guide frame 9 by the elastic force of the baffle elastic member 13 and acts on the rotor 2. When the driving rod 5 rotates to a certain position, it acts on the special-shaped ratchet wheel 6 through the first driving portion 5.1. The special-shaped ratchet wheel 6 then swings outside the cylinder block 1, and when swinging, drives the baffle 11 to overcome the elastic force of the baffle elastic member 13 and enter the guide frame 9. At this time, the baffle 11 is separated from the rotor 2.

[0051] An oil injection port 14 and a spark plug 15 are provided in the cylinder block 1. The oil injection port 14 and the spark plug 15 are arranged adjacent to each other and are respectively located outside the reactive region. The air inlet 10 is located outside the reactive region and is arranged at a position close to the oil injection port 14 or the spark plug 15.

[0052] In this embodiment, an injector is provided outside the cylinder block 1 and is communicated with the oil injection port 14. When the high-pressure gas in the intake device 7 enters the cylinder block 1 through the air inlet 10, the injector starts to inject oil into the cylinder block 1 through the oil injection port 14 and mixes it with the gas to the required oil-gas mixing ratio. When the fuel is mixed to a certain extent, the second driving portion of the driving rod 5 drives the intermediate transmission rod 25 to close the partition opening 23 of the air compression chamber 21, shutting off the air. Subsequently, the spark plug 15 ignites, causing the mixed gas in the cylinder block 1 to burn and generate a high-temperature expansion force. These forces act on the rotor piston 4, thereby enabling the rotor 2 and the rotor piston 4 to perform work and rotate in the cylinder block 1.

[0053] An oil supply device and an oil receiving groove are provided outside the cylinder block 1. An oil seepage groove 16 and an oil receiving port 17 are provided in the cylinder block 1. The oil seepage groove 16 is located within the reactive region and is arranged at a position close to the exhaust port 8. The oil seepage groove 16 is communicated with the oil supply device. The oil receiving port 17 is located within the reactive region and is arranged at a position close to the guide frame 9. The oil receiving port 17 is communicated with the oil receiving groove.

[0054] In this embodiment, the oil seepage groove 16 extends linearly along the side wall of the cylinder block 1, and a wear-resistant sponge-like plastic is provided inside it. At the same time, a filter screen is provided on the surface. The oil supply device flows lubricating oil into the oil seepage groove 16 through a pipeline, and the oil seepage groove 16 gradually seeps the lubricating oil into the cylinder block 1. When the rotor piston 4 passes through the surface of the oil seepage groove 16, it can carry away the lubricating oil, thereby realizing the lubrication of the rotor 2, the driving shaft 3, the rotor piston 4, and the baffle 11.

[0055] In addition, the oil receiving port 17 is arranged at one end of the periphery of the cylinder block 1. Excessive lubricating oil in the cylinder block 1 is thrown out of the oil receiving port 17 due to the centrifugal force generated by the rotation of the rotor piston 4 and is collected from the oil receiving port 17 into the oil receiving groove. Among them, the oil receiving groove is inclined towards the oil supply device so that the collected lubricating oil automatically flows back to the oil supply device to realize the recycling of the lubricating oil.

[0056] The cylinder block 1 is provided with a baffle elastic member corresponding to the baffle 12. One end of the baffle 12 is rotatably engaged with the cylinder block 1, and the other end is always elastically swung towards the intake port 10 and the inclined opening direction of the cylinder block through the baffle elastic member. When the baffle 11 enters the guide frame 9, the baffle 12 blocks the inclined port of the cylinder block, the fuel injection port 14, the spark plug 15, and the intake port 10.

[0057] In this embodiment, the baffle elastic member is a torsion spring and rotates on the cylinder block 1 simultaneously with one end of the baffle 12. The baffle elastic member is elastically connected to the cylinder block 1 and the baffle 12 respectively.

[0058] In the natural state, the baffle 12 is always elastically swung towards the fuel injection port 14, the spark plug 15, the intake port 10, and the inclined port of the cylinder block through the elastic force of the baffle elastic member, and blocks the fuel injection port 14, the spark plug 15, the intake port 10, and the inclined port of the cylinder block, so as to avoid the scraping of the openings of the intake port 10 and the inclined port of the cylinder block when the rotary piston 4 rotates, and also avoid the blockage of the fuel injection port 14, the spark plug 15, the intake port 10, and the inclined port 39 of the cylinder block by the lubricating oil.

[0059] In addition, the elastic force of the baffle elastic member 13 is greater than that of the baffle elastic member. Therefore, when the special-shaped ratchet wheel 6 leaves the baffle 11, the baffle 11 extends towards the rotor 2 and drives the baffle 12 to overcome the elastic force of the baffle elastic member, and the intake port 10 and the inclined port 39 of the cylinder block are opened.

[0060] The intake device 7 includes a cylinder 18, which is fixedly arranged outside the cylinder block 1 and is provided with a partition 19, an air chamber switch 20, and a linkage rod assembly. The cylinder 18 is separated by the partition 19 into an air compression chamber 21 and an intake chamber 22. The air compression chamber 21 is communicated with the air supply end, and the intake chamber 22 is communicated with the intake port 10. The partition 19 is provided with a partition opening 23, and the air compression chamber 21 and the intake chamber 22 are communicated with each other through the partition opening 23. The air chamber switch 20 is cooperatively connected with the linkage rod assembly. The driving rod 5 is provided with a second driving part 5.2 and interacts with or separates from the linkage rod assembly through the second driving part 5.2 when rotating, so as to drive the air chamber switch 20 to open and close the partition opening 23.

[0061] The linkage rod assembly includes a switch slide rod 24, an intermediate transmission rod 25, and a switch swing rod 26. The switch swing rod 26 is provided with a swing driving part 26.1, a switch driving part 26.2, and a switch swing rod elastic member. The switch slide rod 24 is slidably arranged on the cylinder 18 and is cooperatively connected with the air chamber switch 20. The intermediate transmission rod 25 is located outside the cylinder 18 and is cooperatively connected with the switch slide rod 24. The driving rod 5 interacts with or separates from the swing driving part 26.1 through the second driving part 5.2 when rotating.

[0062] When the swing drive part 26.1 is separated from the second drive part 5.2, the switch swing rod 26 always acts on the intermediate transmission rod 25 through the switch drive part 26.2 by the elastic force of the switch swing rod elastic part. The intermediate transmission rod 25 drives the switch slide rod 24 to drive the air chamber switch 20 to close the partition opening 23 through the action of the switch drive part 26.2.

[0063] When the swing drive part 26.1 interacts with the second drive part 5.2, the switch swing rod 26 swings outside the cylinder 1, and when swinging, overcomes the elastic force of the switch swing rod elastic part, and the switch drive part 26.2 on it is separated from the intermediate transmission rod 25. The air chamber switch 20 opens the partition opening 23 due to the air pressure in the air compression chamber 21 when the switch drive part 26.2 is separated from the intermediate transmission rod 25.

[0064] An inclined part 27 is provided at the upper end of the baffle 11. Baffle positioning grooves 28 are respectively provided on the outer side, lower end, and inclined part 27 of the baffle 11. A baffle seal 29 is provided on the baffle positioning groove 28. The shape of the cylinder inclined port 39 matches the shape of the inclined part 27. The baffle 11 is hermetically fitted with the cylinder block 1, the rotor 2, and the cylinder inclined port 39 through the baffle seal 29; piston positioning grooves 30 are respectively provided on the outer side and upper end of the rotor piston 4. A piston seal 31 is provided on the piston positioning groove 30. The rotor piston 4 is hermetically fitted with the cylinder block 1 through the piston seal 31.

[0065] In this embodiment, the shape of the inclined part 27 matches the shape of the cylinder inclined port 39. At the same time, since the baffle seal 29 is also provided on the inclined part 27, an inclined sealing wedge is formed between the two when the baffle 11 extends out of the guide frame 9, thereby effectively preventing the gas in the cylinder block 1 from leaking out through the position between the baffle 11 and the guide frame 9.

[0066] In addition, baffle seals 29 are provided on the outer side, lower end, and inclined part 27 of the baffle 11. Therefore, effective sealing cooperation can be achieved between the outer side of the baffle 11 and the inner wall of the cylinder block 1, between the lower end of the baffle 11 and the periphery of the rotor 2, and between the inclined part 27 and the cylinder inclined port 39 through the baffle seals 29. Piston seals 31 are provided on the outer side and upper end of the rotor piston 4. Therefore, effective sealing cooperation can be achieved between the outer side of the rotor piston 4 and the inner wall of the cylinder block 1, and between the upper end of the rotor piston 4 and the top wall of the cylinder block 1 through the piston seals 31. Thereby, it is effectively ensured that the gas in the working chamber will not leak out.

[0067] The baffle seal 29 and the piston seal 31 are each composed of at least two segments spliced together, and the adjacent splicing parts are in a stepped concave-convex fit. The baffle positioning groove 28 and the piston positioning groove 30 are respectively provided with a sealing elastic member 32 corresponding to at least two segments of the baffle seal 29 and the piston seal 31. The at least two segments of the baffle seal 29 are always elastically movable outward toward the outside of the baffle positioning groove 28 through the sealing elastic member 32, and the at least two segments of the piston seal 31 are always elastically movable outward toward the outside of the piston positioning groove 30 through the sealing elastic member 32.

[0068] In this embodiment, the baffle seal 29 and the piston seal 31 respectively include a first-segment seal 100 and a second-segment seal 200. The first-segment seal 100 is provided with a first double concave-convex step 300 in the direction toward the second-segment seal 200, and the second-segment seal 200 is provided with a second double concave-convex step 400 in the direction toward the first-segment seal 100. The first-segment seal 100 and the second-segment seal 200 are spliced together, and a double-layer stepped concave-convex fit is formed between them through the first double concave-convex step 300 and the second double concave-convex step 400, so as to effectively achieve sealing. In addition, two sealing elastic members 32 are respectively arranged on the baffle positioning groove 28 and the piston positioning groove 30. One sealing elastic member 32 elastically acts on the first-segment seal 100, and the other sealing elastic member 32 elastically acts on the second-segment seal 200, so that the first-segment seal 100 and the second-segment seal 200 are always elastically movable outward toward the outside of the piston positioning groove 30, thereby ensuring the sealing stability between the cylinder block 1, the rotor 2, the rotor piston 4, and the cylinder block inclined port 39.

[0069] A cylinder block seal 33 is arranged on the cylinder block 1, and the rotor 2 is in sealed rotational fit with the cylinder block 1 through the cylinder block seal 33.

[0070] In this embodiment, a cylinder block seal assembly groove is arranged on the cylinder block 1, the cylinder block seal 33 is positioned and assembled on the cylinder block seal assembly groove, and the rotor 2 is in sealed fit with the cylinder block seal 33 during rotation, thereby achieving the seal between the rotor 2 and the cylinder block 1.

[0071] Alternatively, a collar 34 is sleeved around the periphery of the rotor 2. A first toothed seal 35 and a second toothed seal 36 are respectively arranged on both sides of the collar 34. The first toothed seal 35 is fixedly sleeved on one side of the collar 34, and the second toothed seal 36 is movably sleeved on the other side of the collar 34. The first toothed seal 35 and the second toothed seal 36 are in sealed engagement with each other, and the rotor 2 is in sealed rotational fit with the cylinder block 1 through the first toothed seal 35 and the second toothed seal 36.

[0072] In this embodiment, an assembly groove is provided between the rotor 2 and the rotor piston 4. The collar 34 is sleeved around the rotor 2 and positioned in the assembly groove. At the same time, a convex block is provided on one side of the assembly groove. The first toothed seal 35 is fixedly sleeved on one side of the collar 34 through the convex block, and the second toothed seal 36 is movably sleeved on the other side of the collar 34 toward the outside of the rotor 2. When the rotor 2 rotates, one side of it is in sealing cooperation with one side wall of the cylinder block 1 through the fixed first toothed seal 35, and the other side of the rotor 2 is in sealing cooperation with the other side wall of the cylinder block 1 through the second toothed seal 36. The second toothed seal 36 can also be in sealing engagement with the fixed first toothed seal 35 when the rotor 2 rotates, so as to realize the seal between the rotor 2 and the cylinder block 1.

[0073] The working principle is as follows: The rotor 2 and the rotor piston 4 rotate circularly in the cylinder block 1 driven by the driving shaft 3. At the same time, the driving rod 5 also rotates circularly outside the cylinder block 1 driven by the driving shaft 3. When the rotor piston 4 rotates past the exhaust port 8, the driving rod 5 drives the special-shaped ratchet 6 to rotate outside the cylinder block 1. When the special-shaped ratchet 6 rotates, it drives the baffle 11 to rise against the elastic force of the baffle elastic member 13 and enter the guide frame 9, and separates from the rotor 2. At the same time, the shielding baffle 12 always elastically swings toward the intake port 10 and the inclined port 39 of the cylinder block through the baffle bridge elastic member, and shields the intake port 10 and the inclined port 39 of the cylinder block. After the rotor piston 4 continues to rotate past the inclined port 39 of the cylinder block, the fuel injection port 14, the spark plug 15, and the intake port 10, when the driving rod 5 separates from the special-shaped ratchet 6, the baffle 11 moves downward toward the rotor 2 under the elastic force of the baffle elastic member 13 and acts on the rotor 2, and the two are sealed. At the same time, the shielding baffle 12 is also pressed down by the baffle. The rotor piston 4 continues to rotate, and the driving rod 5.2 acts on the switch swing rod 26, causing the switch swing rod 26 to swing outside the cylinder 18 and overcoming the elastic force of the switch swing rod elastic member during the swing. The switch driving portion 26.2 separates from the intermediate transmission rod 25. Since there is a large amount of high-pressure air in the air compression chamber 21, the air chamber switch 20 opens the partition opening 23 due to the air pressure in the air compression chamber 21 when the switch driving portion 26.2 separates from the intermediate transmission rod 25. The high-pressure air in the air compression chamber 21 enters the intake chamber 22 through the partition opening 23, and enters the working chamber jointly formed by the baffle 11, the rotor 2, and the rotor piston 4 from the intake chamber 22 through the intake port 10. The fuel injection port 14 injects fuel to be fully mixed with the air in the working chamber. The second driving portion 5.2 drives the intermediate transmission rod 25 to close the partition opening 23 to cut off the air. Subsequently, the spark plug 15 ignites, causing the mixed gas in the cylinder block 1 to burn and generate an expansion force. These forces act on the rotor piston 4, so as to realize the working rotation of the rotor 2 and the rotor piston 4 in the cylinder block 1. When the rotor piston 4 rotates past the exhaust port 8, the exhausted gas after combustion work is discharged from the exhaust port 8 out of the cylinder block 1, and a working cycle is completed.

[0074] Its action process is as follows Figures 1-4 shown.

[0075] Since the combustion gas in the working chamber can generate a large amount of force, it is necessary to fix the baffle 11. Therefore, the cylinder body 1 is provided with a pin 37 and a pin elastic member on both sides of the lower end of the baffle 11. The pin 37 is tilted and performs telescopic avoidance through the pin elasticity. Since the pin 37 is tilted, the rotor piston 4 can pass through the pin 37. At this time, the pin 37 is pressed down by the rotor piston 4 and is flush with the inner wall of the cylinder body 1. At this time, the rotor piston 4 and the pin 37 avoid each other, and the rotor piston 4 can continue to rotate over the pin 37. When the rotor piston 4 leaves the pin 37, the pin 37 is reset by the elastic force of the pin elastic member and the lower end of the baffle 11 is fixed and limited. At the same time, the upper end of the baffle 11 is fixed and limited by the guide frame 9, so that the expansion force generated by the combustion gas in the working chamber will not affect the baffle 11, ensuring that all the force acts on the rotor piston 4.

[0076] The power of the combustion gas in the working chamber basically acts on the rotor piston 4, and the rotor piston 4 can be lubricated by the lubricating oil seeping out of the oil seepage groove 16 when rotating, and its friction loss is very small, which greatly improves the fuel efficiency. The fuel efficiency can be improved by more than 90% compared with the existing technology.

[0077] In this embodiment, the high-pressure gas provided by the air supply end of the air intake device 7 is mixed with the diesel or gasoline injected from the fuel injection port to form gas.

[0078] In this embodiment, the air intake device 7 can also be connected to the high-temperature and high-pressure steam of the boiler. The gas provided by the air supply end of the air intake device 7 is high-temperature steam, that is, the oil injection port 14 and the spark plug 15 are eliminated in the cylinder body 1. The high-temperature and high-pressure steam from the boiler of the air intake device 7 enters the working chamber through the air intake port 10, which can drive the rotor piston 4 to rotate and work. The working efficiency is more than 90% higher than that of traditional steam engines, and can be widely used in steam engine power generation in nuclear power plants. Example

[0079] See also Figures 18-22 The single-stroke rotary engine is different from the first embodiment in that a movable sealing plate 40 is provided on the cylinder body 1, and the special-shaped ratchet 6 is drivingly connected to the movable sealing plate 40.

[0080] The driving rod 5 of this embodiment can drive the special-shaped ratchet 6 to move through the drive shaft 3. When the special-shaped ratchet 6 is active, it can drive the movable sealing plate 40 to rise to avoid the rotor piston 4, so that the rotor piston 4 can pass over the movable sealing plate 40. After the rotor piston 4 passes over the movable sealing plate 40, the movable sealing plate 40 is reset due to the pressure drop of the elastic member, and together with the rotor 2 and the rotor piston 4, a working chamber is formed. Then the driving rod 5 can also drive the air intake device 7 to allow the required gas to enter the working chamber through the air inlet 10. When the gas in the air intake device 7 is mixed with the gas in the working chamber to a certain extent, the driving rod 5 drives the air intake device 7 to close, and the mixed gas in the working chamber can generate an expansion force and act on the rotor piston 4, thereby realizing the working rotation of the rotor 2 and the rotor piston 4 in the cylinder body 1. The rotor 2 and the rotor piston 4 complete a working cycle by rotating one circle in the cylinder body 1.

[0081] That is, compared with the first embodiment, the present embodiment eliminates the guide frame 9, the baffle 11, the shielding plate 12, the baffle elastic member 13, and the cylinder inclined port 39, so the structure is simpler and the production cost is lower.

[0082] Specifically, the movable sealing plate 40 is swingably arranged in the cylinder body 1, and the cylinder body 1 is provided with a movable sealing plate elastic member corresponding to the movable sealing plate 40, and a first driving part 5.1 is arranged on the driving rod 5. The driving rod 5 is driven by the active shaft 3 to rotate outside the cylinder body 1, and interacts with or separates from the special-shaped ratchet 6 through the first driving part 5.1 when rotating.

[0083] When the special-shaped ratchet wheel 6 and the first driving part 5 . 1 are separated from each other, the movable closing plate 40 always swings toward the direction of the rotor 2 through the elastic force of the movable closing plate elastic member, acts on the rotor 2 , and forms a reactive zone between the movable closing plate 40 and the exhaust port 8 .

[0084] The special-shaped ratchet 6 swings outside the cylinder body 1 through the action of the first driving part 5.1, and drives the movable sealing plate 40 to overcome the elastic force of the elastic part of the movable sealing plate and swing inside the cylinder body 1. The movable sealing plate 40 is separated from the rotor 2, and at the same time blocks the air inlet 10 and avoids each other with the rotor piston 4.

[0085] In this embodiment, the movable sealing plate elastic member is a torsion spring, and rotates in the cylinder body 1 simultaneously with one end of the movable sealing plate 40 . The movable sealing plate elastic member is elastically connected to the cylinder body 1 and the movable sealing plate 40 respectively.

[0086] In a natural state, the movable closing plate 40 always elastically swings toward the direction of the rotor 2 and acts on the rotor 2 through the elastic force of the movable closing plate elastic member.

[0087] The movable sealing plate 40 can swing in the cylinder block 1 by overcoming the elastic force of the elastic member of the movable sealing plate under the action of the special-shaped ratchet 6. When the movable sealing plate 40 swings, it separates from the rotor 2 and blocks the air inlet 10 to prevent the rotor piston 4 from scraping the air inlet 10 during rotation, and also avoids the blockage of the oil injection port 14, the spark plug 15, and the air inlet 10 by the lubricating oil. The movable sealing plate 40 also avoids interfering with the rotor piston 4 so that the rotor piston 4 can cross over the movable sealing plate 40.

[0088] Movable sealing plate positioning grooves 41 are provided at the upper and lower ends and the left and right sides of the movable sealing plate 40, and movable sealing plate seals 42 are provided on the movable sealing plate positioning grooves 41. The movable sealing plate 40 is in sealing cooperation with the cylinder block 1 and the rotor 2 through the movable sealing plate seals 42. Thereby, it effectively ensures that the gas in the working chamber does not leak out.

[0089] The movable sealing plate seal 42 is composed of at least two segments spliced together, and the adjacent splicing parts are in a stepped concave-convex fit. The movable sealing plate positioning groove 41 is provided with a sealing elastic member corresponding to at least two segments of the movable sealing plate seal 42. The at least two segments of the movable sealing plate seal 42 are always elastically movable toward the outside of the movable sealing plate positioning groove 41 through the sealing elastic member; the at least two segments of the movable sealing plate seal 42 are also respectively provided with movable sealing plate seal grooves 43, and the movable sealing plate seal grooves 43 are arranged toward the outside of the movable sealing plate positioning groove 41. Thereby, the sealing stability between the cylinder block 1, the rotor 2, the rotor piston 4, and the movable sealing plate 40 is ensured.

[0090] The working principle is as follows: The rotor 2 and the rotor piston 4 rotate circularly in the cylinder block 1 driven by the driving shaft 3. At the same time, the driving rod 5 also rotates circularly outside the cylinder block 1 driven by the driving shaft 3. When the rotor piston 4 rotates past the exhaust port 8, the driving rod 5 drives the special-shaped ratchet 6 to rotate outside the cylinder block 1. When the special-shaped ratchet 6 rotates, it drives the movable sealing plate 40 to rise against the elastic force of the movable sealing plate elastic member and separate from the rotor 2. At the same time, the movable sealing plate 40 blocks the air inlet 10. After the rotor piston 4 continues to rotate past the movable sealing plate 40, the fuel injection port 14, the spark plug 15, and the air inlet 10, when the driving rod 5 separates from the special-shaped ratchet 6, the movable sealing plate 40 moves downward toward the rotor 2 under the elastic force of the movable sealing plate elastic member and acts on the rotor 2, and the two achieve sealing. The rotor piston 4 continues to rotate, and the driving rod 5.2 acts on the switch swing rod 26, causing the switch swing rod 26 to swing outside the cylinder 18 and overcome the elastic force of the switch swing rod elastic member during the swing. The switch driving portion 26.2 separates from the intermediate transmission rod 25. Since there is a large amount of high-pressure air in the air compression chamber 21, when the switch driving portion 26.2 separates from the intermediate transmission rod 25, the air chamber switch 20 opens the partition opening 23 due to the air pressure in the air compression chamber 21. The high-pressure air in the air compression chamber 21 enters the intake chamber 22 through the partition opening 23, and enters the working chamber jointly formed between the movable sealing plate 40, the rotor 2, and the rotor piston 4 from the intake chamber 22 through the air inlet 10. The fuel injection port 14 injects fuel to mix fully with the air in the working chamber. The second driving portion 5.2 drives the intermediate transmission rod 25 to close the partition opening 23 to cut off the air. Subsequently, the spark plug 15 ignites, causing the mixed gas in the cylinder block 1 to burn and generate an expansion force. These forces act on the rotor piston 4, thereby realizing the working rotation of the rotor 2 and the rotor piston 4 in the cylinder block 1. When the rotor piston 4 rotates past the exhaust port 8, the exhausted gas after combustion work is discharged from the exhaust port 8 out of the cylinder block 1, and a working cycle is completed.

[0091] Its operation process is as Figures 18-21 shown.

[0092] Since the combustion gas in the working chamber can generate a large amount of force, it is necessary to fix the movable sealing plate 40. Therefore, the cylinder body 1 is provided with a pin 37 and a pin elastic member on both sides of the lower end of the movable sealing plate 40. The pin 37 is tilted and performs telescopic avoidance through the elasticity of the pin. Since the pin 37 is tilted, the rotor piston 4 can pass through the pin 37. At this time, the pin 37 is pressed down by the rotor piston 4 and is flush with the inner wall of the cylinder body 1. At this time, the rotor piston 4 and the pin 37 avoid each other, and the rotor piston 4 can continue to rotate over the pin 37. When the rotor piston 4 leaves the pin 37, the pin 37 is reset by the elastic force of the pin elastic member and the lower end of the movable sealing plate 40 is fixed and limited. At the same time, the upper end of the movable sealing plate 40 is also limited in the cylinder body 1, so that the expansion force generated by the combustion gas in the working chamber will not affect the movable sealing plate 40, ensuring that all the force acts on the rotor piston 4.

[0093] The above is a preferred embodiment of the present invention, which shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. The present invention may have various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention to be protected, and the scope of the present invention to be protected is defined by the attached claims and their equivalents.

Claims

1. A single-stroke rotary engine, comprising a cylinder block (1), a rotor (2), and a driving shaft (3), characterized in that: The cylinder (1) is cylindrical in shape and has a sealed end cover at its end. The rotor (2) is located in the cylinder (1) and has a rotor piston (4) extending from its side. The driving shaft (3) passes through the sealed end cover and is drivingly connected to the rotor (2). The driving shaft (3) is also drivingly connected to a driving rod (5). The driving rod (5) is drivingly connected to a special-shaped ratchet (6) and an air intake device (7). The cylinder (1) is provided with an exhaust port (8) and an air intake port (10), and the air intake port (10) is connected to the air intake device (7). The cylinder body (1) is provided with a guide frame (9) and a cylinder body inclined opening (39); a baffle (11) is movably provided between the guide frame (9) and the cylinder body inclined opening (39); the special-shaped ratchet (6) is drivingly connected to the baffle (11); and a baffle (12) is movably provided on the cylinder body (1) corresponding to the air inlet (10) and the cylinder body inclined opening (39); Alternatively, a movable sealing plate (40) is provided on the cylinder body (1), and the special-shaped ratchet (6) is drivingly connected to the movable sealing plate (40).

2. The single-stroke rotary engine according to claim 1, characterized in that: The guide frame (9) is provided with a baffle elastic member (13), and the drive rod (5) is provided with a first drive part (5.1); the drive rod (5) is driven by the active shaft (3) to rotate outside the cylinder body (1), and interacts with or separates from the special-shaped ratchet (6) through the first drive part (5.1) when rotating; when the special-shaped ratchet (6) and the first drive part (5.1) are separated from each other, the baffle (11) is always extended in the direction of the rotor (2) by the elastic force of the baffle elastic member (13), acts on the rotor (2), and forms a reactive zone between the baffle and the exhaust port (8); the special-shaped ratchet (6) is swung outside the cylinder body (1) by the action of the first drive part (5.1), and when swinging, the baffle (11) is driven to overcome the elastic force of the baffle elastic member (13) to enter the guide frame (9), and separate from the rotor (2); Alternatively, the movable sealing plate (40) is swingably arranged in the cylinder body (1), the cylinder body (1) is provided with a movable sealing plate elastic member corresponding to the movable sealing plate (40), the driving rod (5) is provided with a first driving part (5.1), the driving rod (5) is driven by the active shaft (3) to rotate outside the cylinder body (1), and when rotating, the driving rod (5) interacts with or separates from the special-shaped ratchet (6) through the first driving part (5.1); when the special-shaped ratchet (6) and the first driving part (5.1) are separated from each other, the movable sealing plate (40) is The elastic force of the movable sealing plate elastic member always swings in the direction of the rotor (2) and acts on the rotor (2), and forms a reactive zone between the movable sealing plate (40) and the exhaust port (8); the special-shaped ratchet (6) swings outside the cylinder body (1) through the action of the first driving part (5.1), and drives the movable sealing plate (40) to overcome the elastic force of the movable sealing plate elastic member and swing inside the cylinder body (1); the movable sealing plate (40) and the rotor (2) are separated from each other, and the air inlet (10) is blocked at the same time, and the movable sealing plate (40) avoids each other with the rotor piston (4).

3. The single-stroke rotary engine according to claim 2, characterized in that: An oil injection port (14) and a spark plug (15) are arranged in the cylinder body (1); the oil injection port (14) and the spark plug (15) are arranged adjacent to each other and are respectively located outside the reactive zone; the air intake port (10) is located outside the reactive zone and is arranged at a position close to the oil injection port (14) or the spark plug (15).

4. The single-stroke rotary engine according to claim 2, characterized in that: An oil supply device and an oil receiving groove are arranged outside the cylinder body (1), and an oil seepage groove (16) and an oil receiving port (17) are arranged inside the cylinder body (1). The oil seepage groove (16) is located in the reactive zone and is arranged at a position close to the exhaust port (8). The oil seepage groove (16) is communicated with the oil supply device, and the oil receiving port (17) is located in the reactive zone and is communicated with the oil receiving groove.

5. The single-stroke rotary engine according to claim 2, characterized in that: The cylinder body (1) is provided with a baffle plate elastic member corresponding to the baffle plate (12); one end of the baffle plate (12) is rotationally matched with the cylinder body (1), and the other end thereof is elastically swung toward the air inlet (10) and the cylinder body inclined opening (39) through the baffle plate elastic member; the baffle plate (12) blocks the air inlet (10) and the cylinder body inclined opening (39) when the baffle plate (11) rises and enters the guide frame (9).

6. The single-stroke rotary engine according to claim 2, characterized in that: The air intake device (7) comprises a cylinder (18), the cylinder (18) being fixedly arranged outside the cylinder body (1) and being provided with a partition (19), an air chamber switch (20) and a linkage rod assembly; the cylinder (18) is divided into an air compression chamber (21) and an air intake chamber (22) by the partition (19); the air compression chamber (21) is connected to an air supply end, and the air intake chamber (22) is connected to the air inlet (10); a partition opening (23) is provided on the partition (19); the air compression chamber (21) and the air intake chamber (22) are connected to each other via the partition opening (23); the air chamber switch (20) is cooperatively connected with the linkage rod assembly; the drive rod (5) is provided with a second drive portion (5.2), and when rotating, the second drive portion (5.2) interacts with or separates from the linkage rod assembly, thereby driving the air chamber switch (20) to open and close the partition opening (23).

7. The single-stroke rotary engine according to claim 6, characterized in that: The linkage rod assembly comprises a switch slide rod (24), an intermediate transmission rod (25) and a switch swing rod (26); the switch swing rod (26) is provided with a swing drive part (26.1), a switch drive part (26.2) and a switch swing rod elastic part; the switch slide rod (24) is slidably arranged on the cylinder (18) and is cooperatively connected to the air chamber switch (20); the intermediate transmission rod (25) is located outside the cylinder (18) and is cooperatively connected to the switch slide rod (24); and the drive rod (5) interacts with or separates from the swing drive part (26.1) through the second drive part (5.2) when rotating; When the swing drive unit (26.1) and the second drive unit (5.2) are separated from each other, the switch swing rod (26) always acts on the intermediate transmission rod (25) through the switch drive unit (26.2) by the elastic force of the switch swing rod elastic member, and the intermediate transmission rod (25) drives the switch slide rod (24) to drive the air chamber switch (20) to close the partition opening (23) through the action of the switch drive unit (26.2); When the swing drive part (26.1) interacts with the second drive part (5.2), the switch swing rod (26) swings outside the cylinder (18) and overcomes the elastic force of the switch swing rod elastic member during the swing, and the switch drive part (26.2) and the intermediate transmission rod (25) thereon are separated from each other. When the switch drive part (26.2) and the intermediate transmission rod (25) are separated from each other, the air chamber switch (20) opens the partition opening (23) due to the air pressure in the air compression chamber (21).

8. The single-stroke rotary engine according to claim 2, characterized in that: The baffle plate (11) is provided with an inclined portion (27) at the upper end, and baffle plate positioning grooves (28) are provided on the outer side, the lower end, and the inclined portion (27) of the baffle plate (11), respectively. A baffle plate sealing member (29) is provided on the baffle plate positioning groove (28). The shape of the cylinder body inclined opening (39) matches the shape of the inclined portion (27). The baffle plate (11) is sealed with the cylinder body (1), the rotor (2), and the cylinder body inclined opening (39) through the baffle plate sealing member (29). The baffle plate sealing member (29) is formed by splicing at least two sections, and adjacent splicing portions are stepped concave-convex fittings. The baffle plate positioning groove (28) is provided with sealing elastic members (32) corresponding to at least two sections of the baffle plate sealing member (29). At least two sections of the baffle plate sealing member (29) are elastically movable toward the outside of the baffle plate positioning groove (28) through the sealing elastic member (32). Alternatively, movable sealing plate positioning grooves (41) are provided at the upper and lower ends and the left and right sides of the movable sealing plate (40), and movable sealing plate sealing members (42) are provided on the movable sealing plate positioning grooves (41). The movable sealing plate (40) is sealed with the cylinder body (1) and the rotor (2) through the movable sealing plate sealing members (42); the movable sealing plate sealing member (42) is formed by splicing at least two sections, and adjacent splicing portions are stepped concave-convex fittings, and the movable sealing plate positioning grooves (41) are provided with sealing elastic members corresponding to at least two sections of the movable sealing plate sealing members (42), and at least two sections of the movable sealing plate sealing members (42) are always elastically movable toward the outside of the movable sealing plate positioning grooves (41) through the sealing elastic members, and at least two sections of the movable sealing plate sealing members (42) are also respectively provided with movable sealing plate sealing member grooves (43), and the movable sealing plate sealing grooves (43) are arranged toward the outside of the movable sealing plate positioning grooves (41).

9. The single-stroke rotary engine according to claim 8, characterized in that: The outer side and the upper end of the rotor piston (4) are respectively provided with piston positioning grooves (30), and the piston positioning groove (30) is provided with a piston seal (31), and the rotor piston (4) is sealed and matched with the cylinder body (1) through the piston seal (31); the piston seal (31) is formed by at least two sections being spliced ​​together, and adjacent spliced ​​parts are stepped concave-convex matching, and the piston positioning groove (30) is provided with sealing elastic parts (32) corresponding to at least two sections of the piston seal (31), and at least two sections of the piston seal (31) are always elastically movable toward the outer side of the piston positioning groove (30) through the sealing elastic parts (32).

10. The single-stroke rotary engine according to claim 1, characterized in that: The cylinder body (1) is provided with a cylinder body seal (33), and the rotor (2) is in sealed rotational cooperation with the cylinder body (1) via the cylinder body seal (33); Alternatively, a collar (34) is sleeved on the outer periphery of the rotor (2), and a first toothed seal (35) and a second toothed seal (36) are respectively arranged on both sides of the collar (34); the first toothed seal (35) is fixedly sleeved on one side of the collar (34), and the second toothed seal (36) is movably sleeved on the other side of the collar (34); the first toothed seal (35) and the second toothed seal (36) are sealed and meshed with each other, and the rotor (2) is sealed and rotatably matched with the cylinder body (1) via the first toothed seal (35) and the second toothed seal (36).

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