JP2024047509A - Extension rotary engine - Google Patents

Abstract

To provide an internal combustion engine that is further improved in efficiency for converting kinetic energy generated in an explosion stroke into rotational energy and reduced in detonating sound.SOLUTION: An extension rotary engine efficiently collects kinetic energy by adding a plurality of rotation functions to improve fuel consumption while continuously operating four strokes simultaneously in one rotation of a rotor that rotates about a shaft core, thereby reducing noise of detonating sound.SELECTED DRAWING: Figure 4

Description

This relates to a rotary engine in which the rotation axis of the rotor inside the main cylinder and the rotation axis of the rotor of the secondary cylinder are aligned in a straight line, the cylinders are stacked and integrated, and the exhaust or discharge port of the combustion gas is connected to the inlet, thereby improving fuel efficiency by making the combustion energy more efficient.
Also, when the combustion gas is pressurized and sent into the cylindrical body, suction may be called injection.
The explosion of combustion gases is both a combustion and an expansion.

In the rotary engine patent applications JP 7-30706 and 2022-8978, the unused portion of the kinetic energy generated in the combustion process was simply discharged with a loud noise.

This is because the unused kinetic energy generated during the combustion process of the internal combustion engine and the loud noise it produces had to be expelled as is due to the engine's structural design.

The earlier application for the rotary engine, JP-B-7-30706, has a structure in which combustion pressure is introduced into a spring or combustion pressure intake hole at the base of the blade to prevent the tip of the blade from separating from the curved inner wall of the rotary internal combustion engine when the rotor rotates, and the blade is pushed up from the base end. The blade of JP-B-2022-8978 has a protrusion that protrudes vertically from the tip of the blade toward the curved inner wall, or horizontally toward the side walls on both sides, and fits tightly and freely into guide grooves drilled around the rotary engine, so that the tip of the blade always revolves in close contact with the curved inner wall inside the rotary engine.

Problem to be solved by the invention

In both cases, the energy generated during the combustion process in a single cylindrical body was partially converted into rotational energy during combustion and explosion, and the unused kinetic energy was simply discarded to the outside. In addition, the explosion noise inside the engine was not reduced, but the explosion noise should have been reduced by improving the efficiency of converting the kinetic energy generated during the explosion process of the internal combustion engine into rotational energy.

A housing is provided with a space in which the inner radius of a cylinder having a cylindrical inner wall is enlarged in part, a rotor is fitted into the housing, and vanes are attached to several vane grooves drilled in a radial direction from the rotation axis of the rotor, which vanes move forward and backward toward the inner wall of the housing to divide the inside of the housing. An ignition element is provided at the start of the space in the rotation direction of the rotor, and pressurized gas for explosion is continuously supplied into an explosion chamber divided by the tip of the advancing vane, which explodes when ignited by the ignition element, pushing the tip of the vane and rotating the rotor. An exhaust port is provided at the end of the space to form an explosion exhaust space, and the cylinder closed on both sides by side walls is called a mother cylinder.
A housing is provided in which a space formed by increasing the inner radius of another cylinder having a cylindrical inner wall in one place is used as an explosion extension space with an inlet at its starting end and an exhaust outlet at its end, and a rotor with the above-mentioned vane grooves is inserted into the housing. One or more cylinders each having a side wall closing both sides of the cylinder are called child cylinders, and the rotational axes of these rotors are connected in a straight line to stack and integrate the cylinders, thereby forming a rotary engine in which the exhaust port or exhaust port is connected to the inlet.

The pressurized gas for explosion continuously supplied to the explosion chamber refers to a pressurized gas for explosion that is injected as a gas for explosion from an injection port in the injection process among the processes of injection, compression, explosion, and exhaust in a housing in a cylindrical body as described in JP-B-7-30706 and JP-A-2022-8978, compressed by pressure in the compression process, transported to the explosion chamber, and continuously supplied to become a gas for explosion.
Alternatively, the injection port within the cylindrical body is eliminated, omitting the steps of injection and compression, and the explosion chamber is connected to a storage device for pressurized gas for explosion outside the cylindrical body. A jet valve installed at the communication port on the explosion chamber side jets a fixed amount of pressurized gas into the explosion chamber in synchronization with the rotation of the rotor and then stops, and an ignition element ignites and explodes that fixed amount of jetted gas, in this way continuously supplying pressurized gas for explosion.

And so,
The rotor shaft of the main cylinder, which rotates when the tip of the rotor blade receives the explosion energy during the explosion process, is connected in a straight line to the rotor shaft of the child cylinder, and the cylinders are stacked and integrated. The remaining explosion energy that cannot be used to rotate the rotor inside the main cylinder is introduced into the explosion extension space inside the child cylinder through an inlet of the child cylinder, which communicates with the exhaust port, and is received by the advanced tip of the rotor blade in that space, causing the rotor of the child cylinder to rotate. If the child cylinder, which communicates with the main cylinder, and any additional child cylinders are similarly connected to exhaust ports and inlets, the efficiency of harvesting rotational energy can be further improved.
The sound-absorbing effect achieved by increasing the extension space for explosions, like a sound-absorbing muffler, contributes to solving these problems.

The present invention produces the effect of extending the explosion stroke by adding a sub-tubular body with an explosion extension space, and the kinetic energy generated during the explosion stroke is introduced into the adjacent explosion extension space through an inlet that is connected to the exhaust port and exhaust port, as explosive expansion gas, i.e., kinetic energy, to rotate the rotor. Therefore, the rotation range is not limited to the explosion exhaust space of the main tube body, but the utilization range of the kinetic energy generated during the explosion stroke is expanded, thereby improving fuel efficiency. Depending on the mode of addition, it is possible to utilize the kinetic energy for more than one rotation of the rotor of the main tube body. For example, when three sub-tubular bodies are added to the three-blade main tube body shown in the drawings below, the utilization range is approximately 3/4 of the housing circumference, or more than one rotation.
In the case of a two-blade main cylindrical body, the pressurized gas storage device outside the cylindrical body is connected to the explosion chamber, and the pressurized gas for explosion is continuously supplied to the explosion chamber for explosion, causing the rotor to rotate by inertia. As described above, until the effective existence of the kinetic energy generated during the explosion process disappears or as long as the storage capacity of the installed external configuration allows, additional installation can be considered.

In addition, the explosive expansion noise generated in the combustion chamber is silenced by each combustion chamber process that is extended by connecting the exhaust port, exhaust port and inlet port, and by confining the explosive expansion noise within each cylindrical body, it becomes rotational energy and weakens the explosive expansion noise. On the other hand, in the silencer devices of automobiles and guns, it does not contribute to kinetic energy efficiency.

In the previous application, the expansion pressure caused by the explosion of fuel in the combustion chamber was received only by the forward tip of the blade of a single rotor, which rotated the rotor and generated rotational energy, but because it was a single unit, a lot of unused energy was wasted from the exhaust port. This problem also occurred in conventional internal combustion engines such as reciprocating engines, and many proposals had been made to solve the problem.
In addition, when a conventional muffler is attached to reduce the noise of explosions caused by combustion, it acts as a resistance to kinetic energy, reducing its efficiency.

In conventional piston-type reciprocating engines, the four processes of injection, compression, explosion, and exhaust are one cycle, and the same cylinder is shared. These processes are operated sequentially by the back and forth movement of the crank rod, so one-quarter of each process is in operation, and the remaining three-quarters of the processes are in standby mode, which is inefficient. Therefore, the number of cylinders may be increased to strengthen the driving force. Furthermore, if the fuel injection process and explosion process are performed in the same cylinder, there is always a concern about safety vulnerabilities due to sprayed fuel, hydrogen, and other highly flammable combustion gas materials. However, in the rotary engine of the present invention, each process chamber is isolated independently to increase safety, and the four processes are operated simultaneously. Therefore, in the case of a rotor with three blades, one third of the rotor rotation is one cycle, and the circumferential distance of the expansion stroke is longer than in the case of a rotor with four blades, and in one rotation, the same number of cycles as the number of blades are realized. Regardless of the number of blades, the efficient driving force without standby mode can be achieved, which allows the engine to be made smaller and lighter.

Conventionally, internal combustion engines that generate driving force through the eccentric motion of an internal triangular rotor, known as Wankel type rotary engines, should be called crankless reciprocating engines due to their eccentric drive mode, while the rotary engine of the present invention achieves efficiency without eccentric loss.

An embodiment of the present invention will be described with reference to Figures 1, 2, 3, and 4. In the drawings, the reason why one of the communication shapes has a long diameter is that by making the opening long and parallel to the rotation axis direction of the rotor of the cylindrical body, the openings such as the exhaust port, exhaust port, and inlet port can be made large according to the shape of the cylindrical body, thereby enabling the process gas to pass through quickly.
In addition, in this embodiment, the rotors and outer peripheries of the main cylinder and the secondary cylinder are the same diameter size, but by making them different diameter sizes, the width of the cross-sections of the main cylinder and secondary cylinder in the direction of the rotor's rotational axis can be adjusted to create a package shape suited to the installation environment of the rotary engine of the present invention.

In the case where a part of the inner radius of the main cylindrical body 2 of the rotary engine 1 is enlarged at two places to form an explosion exhaust space 221 and an intake compression space 223, and three vanes 5 moving forward and backward toward the inner peripheral wall of the main cylindrical body housing 24 are attached to each vane groove 23 drilled at a depth not reaching the rotation axis A of the main cylindrical body rotor 21 inserted into the main cylindrical body housing 24, the inside of the main cylindrical body housing 24 is divided into three, and in the explosion exhaust space 221 divided into one third of the inner circumference, the tip end 51 of the vane 5 in the explosion chamber 2211 with the divided ignition element 8, the ignition element 8 ignites the compressed combustion gas and explodes and expands, pushing the tip end 51 from the rear side in the rotation direction, rotating the main cylindrical body rotor 21 in the direction B to the exhaust port 26 at the end of the space, This is a schematic cross-sectional view of the mother cylindrical body 2 in a situation where there are an explosion process in which the combustion gas on the front side of the tip portion 51 in the direction of rotation is pushed by the rotation and exhausted in the direction C from the exhaust port 26 at the end portion.In the intake compression space 223, as the mother cylindrical body rotor 21 rotates, the tip portion 51 passes the intake port 27 and draws in the combustion gas from the intake port 27 at the starting end in the direction D, and the tip portion 51 at the rear in the rotor rotation direction passes through the intake port 27 to seal the combustion gas in the intake compression space 223.This is a schematic cross-sectional view of the mother cylindrical body 2 in a situation where there are an explosion process in which the combustion gas on the front side of the tip portion 51 in the direction of rotation is pushed by the rotation and exhausted in the direction C from the exhaust port 26 at the end portion. A schematic cross-sectional view of a sub-tube body 3 in a rotary engine 1, in which a portion of the inner radius of the sub-tube body 3 is enlarged to form an explosion extension space 324 with an inlet 37 at its starting end and an exhaust outlet 36 at its end, and the inside of the sub-tube body housing 32 is divided by each vane 5 attached to each sub-tube body vane groove 33 that is drilled to a depth that does not reach the rotation axis A of the sub-tube body rotor 31 inserted into the sub-tube body housing 32. The inlet 37 at the starting end of the explosion extension space 324 divided by the tip portion 53 is connected to the exhaust port 26, which is not visible in this figure, so that the tip portion 53 receives combustion gas from the direction C, rotates the sub-tube body rotor 31 in the direction B, and exhausts expansion energy in the direction C to the exhaust outlet 36 at the end portion. This is a schematic external view of the rotary engine 1 from the side of the cross-sectional schematic view in a state in which the main cylindrical body 2, the child cylindrical body 3, and the child cylindrical body 4 are cylindrical bodies that cannot be visually identified due to being stacked with the same diameter size, and the cylindrical body rotors 21, 31, and 41 are connected in a straight line along the rotation axis A, and the explosion exhaust space 221 of the main cylindrical body rotor 21 of the main cylindrical body 2, the explosion extension space 324 of the child cylindrical body rotor 31 of the child cylindrical body 3, and the explosion extension space 423 of the child cylindrical body rotor 41 of the child cylindrical body 4 divide the inner circumference of each housing into thirds at the position of the transparent dotted line 71, and together these spaces extend around one circumference of the inner circumference of the housing. The exhaust port 26 and the inlet port 37, and the exhaust port 36 and the inlet port 47 are each connected, and exhaust gas is discharged in the direction C from the exhaust port 46, which is in the same position as the ignition element 8 and which will be identified in the later figure. 1 is a schematic external view of a rotary engine 1 from the side parallel to the rotation axis A, in which combustion gas is taken into the intake port 27 of the main cylinder 2, shown generally by a dotted line, from the direction C, and the rotation axis A of the main cylinder 2, which contains the ignition element 8, and the rotation axes A of the secondary cylinders 3 and 4, shown generally by dotted lines, are connected in a straight line, and these cylinders are stacked and integrated, and the combustion gas in the main cylinder 2 passes through the connected exhaust port 26 and inlet port 37 in the direction E and moves into the secondary cylinder 3, and further, the exhaust port 36 and inlet port 47, shown generally by a dotted line but located on the opposite side and not visible, are connected, and the combustion gas moves from inside the secondary cylinder 3 to inside the secondary cylinder 4 in the direction F, and the expansion energy of the combustion gas is released in the direction C from the exhaust port 46, shown generally by a dotted line, without being communicated.

1 rotary engine 2 main cylinder 3 secondary cylinder 4 secondary cylinder 5 blade 8 ignition element 21 main cylinder rotor 23 blade groove 24 main cylinder housing 26 exhaust port 27 intake port 31 secondary cylinder rotor 32 secondary cylinder housing 33 secondary cylinder blade groove 36 exhaust port 37 intake port 41 secondary cylinder rotor 46 exhaust port 47 intake port 51 tip 53 tip 71 dotted line 221 explosion exhaust space 223 intake compression space 324 explosion extension space 423 explosion extension space 2211 explosion chamber A rotation axis B direction C direction D direction E direction F direction

A housing is provided with a space in which the inner radius of a tubular body having a cylindrical inner peripheral wall is increased in part, and a rotor is inserted into the housing, the rotor having blades that move forward and backward toward the inner peripheral wall of the housing and divide the inside of the housing into several blade grooves drilled in the radial direction from the rotation axis of the rotor.
An ignition element is provided at the beginning of the space in the direction of rotation of the rotor, and the pressurized gas for explosion is continuously supplied to the explosion chamber divided by the tip of the advancing blade. When the ignition element is ignited, the gas explodes, pushing the tip of the blade and rotating the rotor. An exhaust port is provided at the end of the space to form an explosion exhaust space. The cylindrical body with both sides of the cylindrical body closed by side walls is called a mother cylindrical body.
A housing is provided in which a space is created by increasing the inner radius of another cylinder having a cylindrical inner peripheral wall in one place, and the space is made into an explosion extension space having an inlet at its start end and an outlet at its end. The rotor having the above-mentioned blade groove is inserted into the housing, and one or more cylinders each having both sides of the cylinder closed by side walls are called child cylinders.
The rotors are connected in a straight line with their rotation axes aligned, and the cylindrical bodies are closed by side walls and integrated together except for the connecting portions of the adjacent rotors.
The rotary engine has an exhaust port or an exhaust port and an inlet connected to each other.

The present invention produces the effect of extending the explosion stroke by adding a sub-tubular body with an explosion extension space, and the kinetic energy generated during the explosion stroke is introduced into the adjacent explosion extension space through an inlet that is connected to the exhaust port and exhaust port, as explosive expansion gas, i.e., kinetic energy, to rotate the rotor. Therefore, the rotation range is not limited to the explosion exhaust space of the main tube body, but the utilization range of the kinetic energy generated during the explosion stroke is expanded, thereby improving fuel efficiency. Depending on the mode of addition, it is possible to utilize the kinetic energy for more than one rotation of the rotor of the main tube body. For example, when three sub-tubular bodies are added to the three-blade main tube body shown in the drawings below, the utilization range is approximately 3/4 of the housing circumference, or more than one rotation.
In the case of a two-blade main cylindrical body, the pressurized gas storage device outside the cylindrical body is connected to the explosion chamber, and the pressurized gas for explosion is continuously supplied to the explosion chamber to cause an explosion, and the rotor rotates due to inertia.As described above, the effective existence of the kinetic energy generated during the explosion process disappears, or as long as the storage capacity of the attached external dimensions allows, the addition of additional sub-cylindrical bodies can be considered.

In conventional piston-type reciprocating engines, the four processes of injection, compression, explosion, and exhaust are one cycle, and the same cylinder is shared. These processes are operated sequentially by the back and forth movement of the crank rod, so one-quarter of each process is in operation, and the remaining three-quarters of the process is in a standby state, which is inefficient. Therefore, the number of cylinders may be increased to strengthen the driving force. Also, if the fuel injection process and explosion process are performed in the same cylinder, there is always a concern about safety vulnerabilities due to highly flammable materials in the form of sprayed fuel and gas for combustion, such as hydrogen. In contrast, in the rotary engine of the present invention, each process chamber is isolated independently during the corresponding process, increasing safety, and the processes are operated simultaneously. In the case of a rotor with three blades, one third of the rotor rotation is one cycle, and the circumferential distance of the expansion stroke is longer than in the case of a rotor with four blades, and in one rotation, the same number of cycles as the number of blades are realized. Regardless of the number of blades, the efficient driving force without standby state is realized, which allows the engine to be made smaller and lighter.

An embodiment of the present invention will be described with reference to FIGS. 1, 2, 3, 4, 5, and 6. FIG.
In the drawings, one of the communication port shapes has a long diameter because the opening is long and parallel to the rotational axis direction of the rotor of the cylindrical body, thereby making the openings such as exhaust ports, exhaust ports, and inlet ports larger to match the shape of the cylindrical body, allowing the process gas to pass through quickly.
In addition, in this embodiment, the rotors and outer peripheries of the main cylinder and the secondary cylinder are the same diameter size, but by making them different diameter sizes, the width of the cross-sections of the main cylinder and secondary cylinder in the direction of the rotor's rotational axis can be adjusted to create a package shape suited to the installation environment of the rotary engine of the present invention.

In the case where a part of the inner radius of the main cylindrical body 2 of the rotary engine 1 is enlarged at two places to form an explosion exhaust space 221 and an intake compression space 223, and three vanes 5 moving forward and backward toward the inner peripheral wall of the main cylindrical body housing 24 are attached to each vane groove 23 drilled at a depth not reaching the rotation axis A of the main cylindrical body rotor 21 inserted into the main cylindrical body housing 24, the inside of the main cylindrical body housing 24 is divided into three, and in the explosion exhaust space 221 divided into one third of the inner circumference, the tip end 51 of the vane 5 in the explosion chamber 2211 with the divided ignition element 8, the ignition element 8 ignites the compressed combustion gas and explodes and expands, pushing the tip end 51 from the rear side in the rotation direction, rotating the main cylindrical body rotor 21 in the direction B to the exhaust port 26 at the end of the space, This is a schematic cross-sectional view of the mother cylindrical body 2 in a situation where there are an explosion process in which the combustion gas on the front side of the tip portion 51 in the direction of rotation is pushed by the rotation and exhausted in the direction C from the exhaust port 26 at the end portion. Within the intake compression space 223, the rotation of the mother cylindrical body rotor 21 causes the tip portion 51 to pass the intake port 27 and intake the combustion gas from the intake port 27 at the starting end in the direction D, and the tip portion 51 at the rear in the rotor rotation direction passes through the intake port 27 to seal the combustion gas in the intake compression space 223. This is a schematic cross-sectional view of the mother cylindrical body 2 in a situation where there are an explosion process in which the combustion gas on the front side of the tip portion 51 in the direction of rotation is pushed by the rotation and exhausted in the direction C from the exhaust port 26 at the end portion. A schematic cross-sectional view of a sub-tube body 3 in a rotary engine 1, in which a portion of the inner radius of the sub-tube body 3 is enlarged to form an explosion extension space 324 with an inlet 37 at its starting end and an exhaust outlet 36 at its end, and the inside of the sub-tube body housing 32 is divided by each vane 5 attached to each sub-tube body vane groove 33 drilled to a depth that does not reach the rotation axis A of the sub-tube body rotor 31 inserted into the sub-tube body housing 32. The inlet 37 at the starting end of the explosion extension space 324 divided by the tip portion 53 is connected to the exhaust port 26, which is not visible in this figure, so that the tip portion 53 receives combustion gas from the direction C, rotates the sub-tube body rotor 31 in the direction B, and exhausts expansion energy in the direction C to the exhaust outlet 36 at the end portion. This is a schematic external view of the rotary engine 1 from the side of the cross-sectional schematic view in a state in which the main cylindrical body 2, the child cylindrical body 3, and the child cylindrical body 4 are cylindrical bodies that cannot be visually identified due to being stacked with the same diameter size, and the cylindrical body rotors 21, 31, and 41 are connected in a straight line along the rotation axis A, and the explosion exhaust space 221 of the main cylindrical body rotor 21 of the main cylindrical body 2, the explosion extension space 324 of the child cylindrical body rotor 31 of the child cylindrical body 3, and the explosion extension space 423 of the child cylindrical body rotor 41 of the child cylindrical body 4 divide the inner circumference of each housing into thirds at the position of the transparent dotted line 71, and together these spaces extend around one circumference of the inner circumference of the housing. The exhaust port 26 and the inlet port 37, and the exhaust port 36 and the inlet port 47 are each connected, and combustion gas is discharged in the direction C from the exhaust port 46, which is in the same position as the ignition element 8 and which will be identified in the later figure. 1 is a schematic external view of a rotary engine 1 from the side parallel to the rotation axis A, in which combustion gas is taken into the intake port 27, shown diagrammatically by a dotted line, of the main cylinder 2, and the rotation axis A, shown diagrammatically by dotted lines, of the main cylinder 2, which contains the ignition element 8, is connected in a straight line to the rotation axes A, shown diagrammatically by dotted lines, of the sub-cylinders 3 and 4, and the cylinders are stacked and integrated. The combustion gas in the main cylinder 2 passes through the connected exhaust port 26 and inlet port 37 in the direction E and moves into the sub-cylinder 3. Furthermore, the exhaust port 36 and inlet port 47, shown diagrammatically by dotted lines but located on the opposite side and not visible, are connected to each other, and the combustion gas moves in the direction F from the sub-cylinder 3 to the sub-cylinder 4. The expansion energy of the combustion gas is released in the direction C from the exhaust port 46, shown diagrammatically by dotted line, without being communicated. When two blades 5 are attached to the main cylinder body 25 of the rotary engine 1, the main cylinder body housing 255 is divided into two sections, and the pressurized gas for explosion is continuously supplied from the storage device 6 outside the cylinder through the connecting part 9 to the explosion chamber 22115 in which the ignition element 8 is located.The ejection valve 7, which is in sliding contact with the outer peripheral surface 212 of the main body rotor 215 on the explosion chamber 22115 side of the connecting part 9 along its long diameter in the axial direction, injects a certain amount of pressurized gas into the gap between the main cylinder body housing 255 and the separation surface 715, which is gradually separated from the surface of the outer peripheral surface 212, in synchronization with the rotation of the rotor, and the ignition element 8 ignites and explodes the gas, and the exploded combustion gas is exhausted from the exhaust port 265.This is a schematic cross-sectional view of the main cylinder body 25 in a state in which the pressurized gas for explosion is continuously supplied from the storage device 6 outside the cylinder through the connecting part 9. FIG. 13 is a schematic explanatory diagram of a separation surface 715 that is gently separated from the surface of the outer circumferential surface 212 of the main cylindrical body rotor 215 that rotates in the same manner when two blades 5 are attached.

1 Rotary engine 2 Main cylinder body 3 Sub-cylinder body 4 Sub-cylinder body 5 Blade 6 Storage device 7 Jet valve 8 Ignition element 9 Communication part 21 Main cylinder body rotor
23 blade groove 24 main cylinder housing 25 main cylinder 26 exhaust port 27 intake port 31 secondary cylinder rotor 32 secondary cylinder housing 33 secondary cylinder blade groove 36 exhaust port 37 inlet port 41 secondary cylinder rotor 46 exhaust port 47 inlet port 51 tip portion 53 tip portion
71 dotted line 212 outer circumferential surface 215 main cylinder rotor
221 Explosion exhaust space 223 Suction compression space 255 Main cylinder housing 265 Exhaust port 324 Explosion extension space 423 Explosion extension space 715 Partition surface 2211 Explosion chamber 22115 Explosion chamber
A rotation axis B direction
C direction D direction
E direction
F direction

In the case where a part of the inner radius of the main cylindrical body 2 of the rotary engine 1 is enlarged at two places to form an explosion exhaust space 221 and an intake compression space 223, and three vanes 5 moving forward and backward toward the inner peripheral wall of the main cylindrical body housing 24 are attached to each vane groove 23 drilled at a depth not reaching the rotation axis A of the main cylindrical body rotor 21 inserted into the main cylindrical body housing 24, the inside of the main cylindrical body housing 24 is divided into three, and in the explosion exhaust space 221 divided into one third of the inner circumference, the tip end 51 of the vane 5 in the explosion chamber 2211 with the divided ignition element 8, the ignition element 8 ignites the compressed combustion gas and explodes and expands, pushing the tip end 51 from the rear side in the rotation direction, rotating the main cylindrical body rotor 21 in the direction B to the exhaust port 26 at the end of the space, This is a schematic cross-sectional view of the mother cylindrical body 2 in a situation where there are an explosion process in which the combustion gas on the front side of the tip portion 51 in the direction of rotation is pushed by the rotation and exhausted in the direction C from the exhaust port 26 at the end portion. Within the intake compression space 223, the rotation of the mother cylindrical body rotor 21 causes the tip portion 51 to pass the intake port 27 and intake the combustion gas from the intake port 27 at the starting end in the direction D, and the tip portion 51 at the rear in the rotor rotation direction passes through the intake port 27 to seal the combustion gas in the intake compression space 223. This is a schematic cross-sectional view of the mother cylindrical body 2 in a situation where there are an explosion process in which the combustion gas on the front side of the tip portion 51 in the direction of rotation is pushed by the rotation and exhausted in the direction C from the exhaust port 26 at the end portion. A schematic cross-sectional view of a sub-tube body 3 in a rotary engine 1, in which a portion of the inner radius of the sub-tube body 3 is enlarged to form an explosion extension space 324 with an inlet 37 at its starting end and an exhaust outlet 36 at its end, and the inside of the sub-tube body housing 32 is divided by each vane 5 attached to each sub-tube body vane groove 33 drilled to a depth that does not reach the rotation axis A of the sub-tube body rotor 31 inserted into the sub-tube body housing 32. The inlet 37 at the starting end of the explosion extension space 324 divided by the tip portion 53 is connected to the exhaust port 26, which is not visible in this figure, so that the tip portion 53 receives combustion gas from the direction C, rotates the sub-tube body rotor 31 in the direction B, and exhausts expansion energy in the direction C to the exhaust outlet 36 at the end portion. This is a schematic external view of the rotary engine 1 from the side of the cross-sectional schematic view in a state in which the main cylindrical body 2, the child cylindrical body 3, and the child cylindrical body 4 are cylindrical bodies that cannot be visually identified due to being stacked with the same diameter size, and the cylindrical body rotors 21, 31, and 41 are connected in a straight line along the rotation axis A, and the explosion exhaust space 221 of the main cylindrical body rotor 21 of the main cylindrical body 2, the explosion extension space 324 of the child cylindrical body rotor 31 of the child cylindrical body 3, and the explosion extension space 423 of the child cylindrical body rotor 41 of the child cylindrical body 4 divide the inner circumference of each housing into thirds at the position of the transparent dotted line 71, and together these spaces extend around one circumference of the inner circumference of the housing. The exhaust port 26 and the inlet port 37, and the exhaust port 36 and the inlet port 47 are each connected, and combustion gas is discharged in the direction C from the exhaust port 46, which is in the same position as the ignition element 8 and which will be identified in the later figure. 1 is a schematic external view of a rotary engine 1 from the side parallel to the rotation axis A, in which combustion gas is taken into the intake port 27, shown diagrammatically by a dotted line, of the main cylinder 2, and the rotation axis A, shown diagrammatically by dotted lines, of the main cylinder 2, which contains the ignition element 8, is connected in a straight line to the rotation axes A, shown diagrammatically by dotted lines, of the sub-cylinders 3 and 4, and the cylinders are stacked and integrated. The combustion gas in the main cylinder 2 passes through the connected exhaust port 26 and inlet port 37 in the direction E and moves into the sub-cylinder 3. Furthermore, the exhaust port 36 and inlet port 47, shown diagrammatically by dotted lines but located on the opposite side and not visible, are connected to each other, and the combustion gas moves in the direction F from the sub-cylinder 3 to the sub-cylinder 4. The expansion energy of the combustion gas is released in the direction C from the exhaust port 46, shown diagrammatically by dotted line, without being communicated. In the present application, the term "stroke" also refers to a process. When the number of vanes 5 attached to the main cylinder 25 of the rotary engine 1 is two, the inside of the main cylinder housing 255 is divided into two, and the pressurized gas for explosion is continuously supplied from the storage device 6 outside the cylinder through the communication part 9 to the explosion chamber 22115 in which the ignition element 8 is located. The axially long jet valve 7 that slides against the outer circumferential surface 212 of the main cylinder rotor 215 on the explosion chamber 22115 side of the communication part 9 is gradually separated from the surface of the outer circumferential surface 212 and moves in synchronism with the rotation of the rotor to the volume formed by the separation surface 715 as part of the explosion chamber 22115. A fixed amount of pressurized gas is injected, and as the rotor rotates, it merges with the above-mentioned portion of the explosion chamber 22115, which becomes the maximum volume, and is ignited and exploded by the ignition element 8. The exploded and combusted gas is exhausted from the exhaust port 265. In the case of a three- or four-blade main cylindrical rotor 215 with intake and compression processes, this process is the process preceding the explosion stroke, and is the preliminary stage which generates rotational force one after the other, and the four processes of intake, compression, explosion and exhaust are linked, but in the case of a two-blade rotor, this process does not exist, so the rotor rotates by inertia until just before the ignition element 8 ignites and explodes. This is a schematic cross-sectional view. FIG. 13 is a schematic explanatory diagram of a separation surface 715 that is gently separated from the surface of the outer circumferential surface 212 of the main cylindrical body rotor 215 that rotates in the same manner when two blades 5 are attached.

This relates to a rotary engine in which the rotation axis of the rotor inside the main cylinder and the rotation axis of the rotor of the secondary cylinder are aligned in a straight line, the cylinders are stacked and integrated, and the exhaust or discharge port of the combustion gas is connected to the inlet, thereby improving fuel efficiency by making the combustion energy more efficient.
Also, when the combustion gas is pressurized and sent into the cylindrical body, suction may be called injection.
The explosion of combustion gas is both combustion and expansion. In this text, combustion gas refers to a mixture of air and fuel, and pressurized gas refers to the pressurized state of the combustion gas.

The pressurized gas for explosion continuously supplied to the explosion chamber refers to a pressurized gas for explosion that is injected from an injection port in the injection process of the cylindrical body described in JP-B-7-30706 and JP-A-2022-8978, among the processes of injection, compression, explosion, and exhaust in the housing, is compressed in the compression process, and is transported to the explosion chamber and continuously supplied to become the gas for explosion.
At the same time, if the device for storing pressurized gas for explosion outside the cylindrical body is connected to the explosion chamber, a jet valve installed at the communication port on the explosion chamber side will jet a constant amount of pressurized gas from the storage device into the explosion chamber in synchronization with the rotation of the rotor.
Alternatively, the injection port within the cylindrical body is eliminated, omitting the steps of injection and compression, and the explosion chamber is connected to a storage device for pressurized gas for explosion outside the cylindrical body. A jet valve installed at the communication port on the explosion chamber side jets a fixed amount of the pressurized gas into the explosion chamber in synchronization with the rotation of the rotor and then stops, and an ignition element ignites and explodes that fixed amount of jetted gas, and so on. This refers to the pressurized gas for explosion that is continuously replenished as described above.

The present invention produces the effect of extending the explosion stroke by adding a sub-tubular body with an explosion extension space, and the kinetic energy generated during the explosion stroke is introduced into the adjacent explosion extension space through an inlet that is connected to the exhaust port and exhaust port, as explosive expansion gas, i.e., kinetic energy, to rotate the rotor. Therefore, the rotation range is not limited to the explosion exhaust space of the main tube body, but the utilization range of the kinetic energy generated during the explosion stroke is expanded, thereby improving fuel efficiency. Depending on the mode of addition, it is possible to utilize the kinetic energy for more than one rotation of the rotor of the main tube body. For example, when three sub-tubular bodies are added to the three-blade main tube body shown in the drawings below, the utilization range is approximately 3/4 of the housing circumference, or more than one rotation.
In the case of a two-blade main cylindrical body, the pressurized gas storage device outside the cylindrical body is connected to the explosion chamber, and the pressurized gas for explosion is continuously supplied to the explosion chamber to cause an explosion, and the rotor rotates due to inertia.As described above, the effective existence of the kinetic energy generated during the explosion process disappears, or as long as the storage capacity of the attached external dimensions allows, the addition of additional sub-cylindrical bodies can be considered.

And so,
The rotor shaft of the main cylinder, which receives the explosion energy during the explosion process and rotates at the tip of the rotor blade, is connected in a straight line to the rotor shaft of the child cylinder, and the cylinders are stacked and integrated. The remaining explosion energy that cannot be used to rotate the rotor in the main cylinder is introduced from the inlet of the child cylinder, which communicates with the exhaust port, into the explosion extension space in the child cylinder, where it is received by the forward-moving tip of the rotor blade in that space, causing the rotor of the child cylinder to rotate. If the child cylinder, which communicates with the main cylinder, and additional child cylinders are similarly connected to the exhaust port and inlet, further rotational energy can be generated. This configuration improves the efficiency of energy collection, and for example, when moving a heavy load that is placed on the floor and in a stationary state, a relatively great force is required initially, but once the load starts moving, a relatively small force can be used to continue moving. The explosion energy inside the main cylindrical body acts as a force to start the rotor rotating, and the remaining explosion energy introduced into the explosion extension space inside the child cylindrical body, even though it is a relatively small energy, acts as a force to rotate and propel the rotor that has started to rotate, thereby improving the efficiency of rotational energy collection.In addition, the sound-absorbing effect achieved by increasing the extension of the explosion extension space, like a sound-absorbing muffler, contributes to solving these problems.

This relates to a rotary engine in which the rotation axis of the rotor inside the main cylinder and the rotation axis of the rotor of the secondary cylinder are aligned in a straight line, the cylinders are stacked and integrated, and the exhaust or discharge port of the combustion gas is connected to the inlet, thereby improving fuel efficiency by making the combustion energy more efficient.
Also, when the combustion gas is pressurized and sent into the cylindrical body, suction may be called injection.
The explosion of combustion gases is both a combustion and an expansion.

In the rotary engine patent application JP7-30706 and patent application 2022-8978, the unused kinetic energy generated during the combustion process was simply discharged with a loud noise.

This is because the unused kinetic energy generated during the combustion process of the internal combustion engine and the loud noise had to be discharged as is due to the structural design.

The earlier rotary engine application, JP Patent Publication No. 7-30706, has a structure in which combustion pressure is introduced into a spring or combustion pressure intake hole at the base of the blade to prevent the tip of the blade from separating from the curved inner wall of the rotary internal combustion engine when the rotor rotates, and the blade of JP Patent Application No. 2022-8978 has a structure in which the protrusions from the tip of the blade in the vertical direction toward the curved inner wall or the horizontal direction toward the side walls on both sides are tightly fitted into guide grooves drilled around the rotary engine so that the inner curved surface and the tip of the blade always rotate in close contact with each other inside the rotary engine.

In both cases, the energy generated in the combustion process of a single cylindrical body is partially converted into rotational energy during combustion and explosion, and the unused kinetic energy is simply discarded to the outside. In addition, the explosion noise inside the engine was not reduced, but the efficiency of converting the kinetic energy generated in the explosion process of an internal combustion engine into rotational energy was improved.
By doing so, the explosion noise should have been reduced.

A housing is provided with a space in which the inner radius of a cylinder having a cylindrical inner wall is enlarged in part, a rotor is fitted into the housing, and vanes are attached to several vane grooves drilled in a radial direction from the rotation axis of the rotor, which vanes move forward and backward toward the inner wall of the housing to divide the inside of the housing. An ignition element is provided at the start of the space in the rotation direction of the rotor, and pressurized gas for explosion is continuously supplied into an explosion chamber divided by the tip of the advancing vane, which explodes when ignited by the ignition element, pushing the tip of the vane and rotating the rotor. An exhaust port is provided at the end of the space to form an explosion exhaust space, and the cylinder closed on both sides by side walls is called a mother cylinder.
A housing is provided in which a space is created by increasing the inner radius of another cylinder having a cylindrical inner peripheral wall in one place, and the space is made into an explosion extension space having an inlet at its start end and an outlet at its end. The rotor having the above-mentioned blade groove is inserted into the housing, and one or more cylinders each having both sides of the cylinder closed by side walls are called child cylinders.
The rotating shafts of these rotors are connected in a straight line and the cylindrical bodies are stacked and integrated to form a rotary engine in which the exhaust port or exhaust port communicates with the inlet port.

The pressurized gas for explosion continuously supplied to the explosion chamber refers to a pressurized gas for explosion that is injected as a gas for explosion from an injection port in the injection process among the processes of injection, compression, explosion, and exhaust in a housing in a cylindrical body as described in JP-B-7-30706 and JP-A-2022-8978, compressed by pressure in the compression process, transported to the explosion chamber, and continuously supplied to become a gas for explosion.
Alternatively, the injection port within the cylindrical body is eliminated, omitting the steps of injection and compression, and the explosion chamber is connected to a storage device for pressurized gas for explosion outside the cylindrical body. A jet valve installed at the communication port on the explosion chamber side jets a fixed amount of pressurized gas into the explosion chamber in synchronization with the rotation of the rotor and then stops, and an ignition element ignites and explodes that fixed amount of jetted gas, in this way continuously supplying pressurized gas for explosion.

And so,
The rotor shaft of the main cylinder, which rotates when the tip of the rotor blade receives the explosion energy during the explosion process, is connected in a straight line to the rotor shaft of the child cylinder, and the cylinders are stacked and integrated. The remaining explosion energy that cannot be used to rotate the rotor inside the main cylinder is introduced into the explosion extension space inside the child cylinder through an inlet of the child cylinder, which communicates with the exhaust port, and is received by the advanced tip of the rotor blade in that space, causing the rotor of the child cylinder to rotate. If the child cylinder, which communicates with the main cylinder, and any additional child cylinders are similarly connected to exhaust ports and inlets, the efficiency of harvesting rotational energy can be further improved.
The sound-absorbing effect achieved by increasing the extension space for explosions, like a sound-absorbing muffler, contributes to solving these problems.

The present invention produces the effect of extending the explosion stroke by adding a sub-tubular body with an explosion extension space, and the kinetic energy generated during the explosion stroke is introduced into the adjacent explosion extension space through an inlet that is connected to the exhaust port and exhaust port, as explosive expansion gas, i.e., kinetic energy, to rotate the rotor. Therefore, the rotation range is not limited to the explosion exhaust space of the main tube body, but the utilization range of the kinetic energy generated during the explosion stroke is expanded, thereby improving fuel efficiency. Depending on the mode of addition, it is possible to utilize the kinetic energy for more than one rotation of the rotor of the main tube body. For example, when three sub-tubular bodies are added to the three-blade main tube body shown in the drawings below, the utilization range is approximately 3/4 of the housing circumference, or more than one rotation.
In the case of a two-blade main cylindrical body, the pressurized gas storage device outside the cylindrical body is connected to the explosion chamber, and the pressurized gas for explosion is continuously supplied to the explosion chamber for explosion, causing the rotor to rotate by inertia. As described above, until the effective existence of the kinetic energy generated during the explosion process disappears or as long as the storage capacity of the installed external configuration allows, additional installation can be considered.

In addition, the explosive expansion noise generated in the combustion chamber is silenced by the combustion chamber processes that extend from the exhaust and exhaust ports to the inlet port, and by confining the explosive expansion noise within each cylindrical body, it becomes rotational energy and weakens the explosive expansion noise. On the other hand, in automobile mufflers and gun silencer devices, it does not contribute to kinetic energy efficiency.

In the previous application, the expansion pressure caused by the explosion of fuel in the combustion chamber was received only by the forward tip of the blade of a single rotor, which rotated the rotor and generated rotational energy, but because it was a single unit, a lot of unused energy was wasted from the exhaust port.
This phenomenon also occurs in conventional internal combustion engines such as reciprocating engines, and numerous proposals have been made to resolve the problem.
In addition, when a conventional muffler is attached to reduce the noise of explosions caused by combustion, it acts as a resistance to kinetic energy, reducing its efficiency.

In conventional piston-type reciprocating engines, the four processes of injection, compression, explosion, and exhaust are one cycle, and the same cylinder is shared. These processes are operated sequentially by the back and forth movement of the crank rod, so one-quarter of each process is in operation, and the remaining three-quarters of the process is in a standby state, which is inefficient. Therefore, the number of cylinders may be increased to strengthen the driving force. Also, if the fuel injection process and explosion process are performed in the same cylinder, there is always a concern about safety vulnerabilities due to highly flammable materials such as sprayed fuel and gaseous combustion materials such as hydrogen. In contrast, in the rotary engine of the present invention, each process chamber is isolated independently to increase safety, and the four processes are operated simultaneously. In the case of a rotor with three blades, one third of the rotor rotation is one cycle, and the circumferential distance of the expansion stroke is longer than in the case of a rotor with four blades, and in one rotation, the same number of cycles as the number of blades are realized. Regardless of the number of blades, the efficient driving force without standby state is realized, which allows the engine to be made smaller and lighter.

Conventionally, internal combustion engines that generate driving force through the eccentric motion of an internal triangular rotor, known as Wankel rotary engines, should be called crankless reciprocating engines due to their eccentric drive mode, while the rotary engine of the present invention achieves efficiency without eccentric loss.

An embodiment of the present invention will be described with reference to FIGS. 1, 2, 3 and 4. FIG.
In the drawings, one of the communication shapes of the exhaust port, exhaust port, and inlet port has a longer diameter because the openings are long and parallel to the rotational axis direction of the rotor of the cylindrical body, and the exhaust port, exhaust port, inlet port, etc. can be made large to match the shape of the cylindrical body, allowing the process gas to pass through quickly.
In addition, in this embodiment, the rotors and outer peripheries of the main cylinder and the secondary cylinder are the same diameter size, but by making them different diameter sizes, the width of the cross-sections of the main cylinder and secondary cylinder in the direction of the rotor's rotational axis can be adjusted to create a package shape suited to the installation environment of the rotary engine of the present invention.

In the case where a part of the inner radius of the main cylindrical body 2 of the rotary engine 1 is enlarged at two places to form an explosion exhaust space 221 and an intake compression space 223, and three vanes 5 moving forward and backward toward the inner peripheral wall of the main cylindrical body housing 24 are attached to each vane groove 23 drilled at a depth not reaching the rotation axis A of the main cylindrical body rotor 21 inserted into the main cylindrical body housing 24, the inside of the main cylindrical body housing 24 is divided into three, and in the explosion exhaust space 221 divided into one third of the inner circumference, the tip end 51 of the vane 5 in the explosion chamber 2211 with the divided ignition element 8, the ignition element 8 ignites the compressed combustion gas and explodes and expands, pushing the tip end 51 from the rear side in the rotation direction, rotating the main cylindrical body rotor 21 in the direction B to the exhaust port 26 at the end of the space, This is a schematic cross-sectional view of the mother cylindrical body 2 in a situation where there are three steps: an explosion step in which the combustion gas on the front side of the tip portion 51 in the direction of rotation is pushed by the rotation and exhausted in the direction C from the exhaust port 26 at the end portion; and within the intake compression space 223, the rotation of the mother cylindrical body rotor 21 causes the tip portion 51 to pass the inlet 27 and suck in the combustion gas from the inlet 27 at the starting end in the direction D, and the tip portion 51 at the rear in the rotor rotation direction passes through the inlet 27 to seal the combustion gas in the intake compression space 223.This is a schematic cross-sectional view of the mother cylindrical body 2 in a situation where there are three steps: an explosion step in which the combustion gas on the front side of the tip portion 51 in the direction of rotation is pushed by the rotation and exhausted in the direction C from the exhaust port 26 at the end portion. A schematic cross-sectional view of a sub-tube body 3 in a rotary engine 1, in which a portion of the inner radius of the sub-tube body 3 is enlarged to form an explosion extension space 324 with an inlet 37 at its starting end and an exhaust outlet 36 at its end, and the inside of the sub-tube body housing 32 is divided by each vane 5 attached to each sub-tube body vane groove 33 drilled to a depth that does not reach the rotation axis A of the sub-tube body rotor 31 inserted into the sub-tube body housing 32. The inlet 37 at the starting end of the explosion extension space 324 divided by the tip portion 53 is connected to the exhaust port 26, which is not visible in this figure, so that the tip portion 53 receives combustion gas from the direction C, rotates the sub-tube body rotor 31 in the direction B, and exhausts expansion energy in the direction C to the exhaust outlet 36 at the end portion. This is a schematic external view of the rotary engine 1 from the side of the cross-sectional schematic view in a state in which the main cylindrical body 2, the child cylindrical body 3, and the child cylindrical body 4 are cylindrical bodies that cannot be visually identified due to being stacked with the same diameter size, and the cylindrical body rotors 21, 31, and 41 are connected in a straight line along the rotation axis A, and the explosion exhaust space 221 of the main cylindrical body rotor 21 of the main cylindrical body 2, the explosion extension space 324 of the child cylindrical body rotor 31 of the child cylindrical body 3, and the explosion extension space 423 of the child cylindrical body rotor 41 of the child cylindrical body 4 divide the inner circumference of each housing into thirds at the position of the transparent dotted line 71, and together these spaces extend around one circumference of the inner circumference of the housing. The exhaust port 26 and the inlet port 37, and the exhaust port 36 and the inlet port 47 are each connected, and exhaust gas is discharged in the direction C from the exhaust port 46, which is in the same position as the ignition element 8 and which will be identified in the later figure. 1 is a schematic external view of a rotary engine 1 from the side parallel to the rotation axis A, in which combustion gas is taken in from the direction C into the inlet 27 of the main cylinder 2, which is shown generally by a dotted line, and the rotation axis A of the main cylinder 2, which contains the ignition element 8, and the rotation axes A of the secondary cylinders 3 and 4, shown generally by dotted lines, are connected in a straight line, and these cylinders are stacked and integrated, and the combustion gas in the main cylinder 2 passes through the connected exhaust port 26 and inlet 37 in the direction E and moves into the secondary cylinder 3, and further, the exhaust port 36 and inlet 47, shown generally by dotted lines but located on the opposite side and not visible, are connected, and the combustion gas moves from the secondary cylinder 3 to the secondary cylinder 4 in the direction F, and the expansion energy of the combustion gas is released in the direction C from the exhaust port 46, shown generally by dotted line, without being communicated.

1 Rotary engine 2 Main cylinder 3 Secondary cylinder 4 Secondary cylinder 5 Blade 8 Ignition element 21 Main cylinder rotor
23 blade groove 24 main cylinder housing 26 exhaust port 27 inlet 31 secondary cylinder rotor 32 secondary cylinder housing 33 secondary cylinder blade groove 36 exhaust port 37 inlet 41 secondary cylinder rotor 46 exhaust port 47 inlet 51 tip 53 tip
71 dotted line 221 explosion exhaust space 223 intake compression space 324 explosion extension space 423 explosion extension space 2211 explosion chamber
A rotation axis B direction
C direction D direction
E direction
F direction

Claims (1)

a housing having a space with an enlarged inner radius of a cylindrical body having an inner peripheral wall, a rotor having vanes that move forward and backward toward the inner peripheral wall of the housing and divide the inside of the housing in several vane grooves drilled in a radial direction from the rotation axis of the rotor separately provided, is inserted into the housing, an ignition element is provided at the start of the space in the rotation direction of the rotor, an explosion chamber divided by the tip of the advancing vane is continuously supplied with pressurized gas for explosion by ignition of the ignition element, pushing the tip of the vane to rotate the rotor, an exhaust port is provided at the end of the space, and both sides of the cylindrical body are closed by side walls;
In one or more cylinders, a housing is provided in which the inner radius of another cylinder having a cylindrical inner peripheral wall is increased at one point, and the housing has an inlet at the start end of the space and an outlet at the end end of the space, forming an explosion extension space, and the rotor having the vane grooves as described above is inserted into the housing, and both sides of the cylinder are closed by side walls.
A rotary engine is a system in which the rotating shafts of the rotors are connected in a straight line, the cylindrical bodies are stacked together to form an integrated unit, and the exhaust or exhaust port is connected to the inlet.

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