JP7424674B1 - Expansion/rotary engine - Google Patents

Abstract

An object of the present invention is to provide an internal combustion engine that improves the efficiency of converting kinetic energy generated during an explosion stroke into rotational energy and reduces explosive noise.
[Solution] With one revolution of the rotor rotating on its axis, four processes are operated simultaneously and continuously, and by adding multiple rotation functions, efficient collection of kinetic energy improves fuel efficiency and reduces explosion noise. It was realized.
[Selection diagram] Figure 4

Description

The rotational axis of the rotor in the mother cylinder and the rotational axis of the rotor in the child cylinder are aligned, and the cylinders are overlapped and integrated, and the combustion gas exhaust port or exhaust port and inlet are communicated to generate combustion energy. Related to rotary engines that aim to improve fuel efficiency by increasing efficiency.
Furthermore, when pressurizing combustion gas and sending it into the cylindrical body, suction may be called injection.
The explosion of combustion gas is both combustion and expansion.

For rotary engines, the unused portion of the kinetic energy generated in the combustion process is directly emitted with an explosive sound in Patent Publication No. 7-30706 and Patent Application No. 2022-8978.

This is because the unused portion of kinetic energy and loud noise generated during the combustion stroke of the internal combustion engine have to be emitted as is due to the structural mechanism.

The prior application for the rotary engine, JP-B-7-30706, uses a spring in the bottom of the blade and a combustion pressure intake hole provided to prevent the tips of the blades from separating from the curved surface of the inner peripheral wall of the rotary internal combustion engine when the rotor rotates. The blade is configured to push up the blade from the base end of the blade by introducing pressure, and the blade of Japanese Patent Application No. 2022-8978 is configured to push up the blade from the tip of the blade in the vertical direction toward the inner circumferential curved surface, or in the lateral direction toward the side walls on both sides. By tightly fitting the protruding part of the vane into a guide groove drilled in the rotary engine so that it can rotate freely, the inner curved surface and the tip of the vane always circulate closely in the rotary engine.

In both cases, the energy generated during the combustion process of a single cylindrical body is partially converted into rotational energy during the combustion explosion, and the unused kinetic energy is discarded to the outside as is, and the explosion noise inside the engine is reduced. Although this was not the case, efforts were made to improve the efficiency of converting the kinetic energy generated during the internal combustion engine's explosion stroke into rotational energy.
The explosion noise should have been reduced by

A housing with a space in which a part of the inner radius of a cylindrical body having a cylindrical inner circumferential wall is enlarged is provided, and several blade grooves bored in a radial direction from the rotating shaft of a separately installed rotor are connected to the inner circumferential wall of the housing. A rotor equipped with vanes that move forward and backward to partition the inside of the housing is inserted into the housing, and an ignition element is provided at the starting end of the space in the direction of rotation of the rotor to divide the space at the tips of the blades that move forward. The pressurized gas for explosion that is continuously supplied into the explosion chamber explodes when the ignition element ignites, pushing the tip of the blade and rotating the rotor, and an exhaust port is set at the end of the space. A cylindrical body whose both sides are closed by side walls as an explosion exhaust space is called a base cylindrical body,
A housing is provided in which a part of the inner radius of another cylindrical body having a cylindrical inner circumferential wall is enlarged by one place is used as an explosion extension space with an inlet at the starting end and an outlet at the terminal end, One or more cylindrical bodies in which the rotor with the blade grooves as described above is inserted into its housing and both sides of the cylindrical body are closed by side walls are referred to as child cylindrical bodies,
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 the exhaust port and the inlet port communicate with each other.

The pressurized gas for explosion that is continuously replenished into the explosion chamber means injection, compression, explosion, exhaust, Among these processes, pressurized gas is injected as an explosive gas from the injection port in the injection process, compressed under pressure in the compression stroke, transferred to the explosion chamber, and continuously replenished for explosion purposes.
Alternatively, the injection port in the cylindrical body can be eliminated to omit the injection and compression steps, and the explosion chamber can be communicated with the pressurized gas storage device for explosion outside the cylindrical body, and the communication port on the side of the explosion chamber can be connected to the explosion chamber. An explosion that is continuously replenished by an installed blowout valve that blows out a fixed amount of pressurized gas into the explosion chamber in synchronization with the rotation of the rotor, then stops, and then an ignition element ignites and explodes the fixed amount of gas ejected. It refers to pressurized gas for use.

Then,
A cylindrical body is formed by connecting in a straight line the rotation axis of the rotor of the mother cylindrical body, which rotates when the tip portion of the blade of the rotor receives the explosion energy during the explosion stroke, and the rotation axis of the rotor of the child cylindrical body. When stacking and integrating, the remaining explosion energy that could not be used as energy to rotate the rotor in the mother cylinder is introduced into the explosion extension space in the child cylinder from the inlet of the child cylinder that communicates with the exhaust port. The advanced tip of the rotor blade in that space is received and rotates the rotor of the child cylindrical body, and the child cylindrical body communicating with the mother cylindrical body and additional child cylindrical bodies are similarly connected. By connecting and expanding the outlet and inlet, you can further improve the efficiency of harvesting rotational energy.
Like a sound-deadening muffler, the sound-deadening effect by increasing the length of the explosion extension space contributes to solving these problems.

The present invention has the effect of extending the explosion stroke by adding a sub-cylindrical body with an explosion extension space, and the kinetic energy generated in the explosion stroke is transferred to the adjacent cylinder by communicating the exhaust port and the exhaust port with the inlet. Since the explosion expansion gas, that is, kinetic energy, is introduced into the explosion extension space to rotate the rotor, the kinetic energy generated during the explosion stroke can be used and harvested without being limited to the rotation range of the explosion exhaust space of the base cylinder. In order to improve fuel efficiency by expanding the range, depending on the above-mentioned expansion and addition mode, it is possible to use the collection range of more than one rotation of the rotor of the main cylinder. When three cylindrical bodies are added, the usable collection range is approximately 4/3 of the circumference of the housing, which is more than one rotation.
In addition, in the case of a two-blade base cylinder, the pressurized gas storage device outside the cylinder is connected to the explosion chamber, and the explosion chamber is continuously supplied with pressurized gas for explosion. , the rotor is rotated by inertia, and as long as the effective existence of the kinetic energy generated in the explosion stroke disappears, or as long as the storage capacity of the installed external shape allows, you can consider adding an extension.

In addition, the explosion and expansion noise generated in the combustion chamber is silenced by each combustion chamber process where the exhaust port and the exhaust port are connected and extended, and by trapping the explosion and expansion noise within each cylindrical body. It turns into rotational energy and weakens the sound of the explosion and expansion, but on the other hand, it does not contribute to the kinetic energy efficiency of automobile mufflers or gun silencers.

In the previous application, only the advancing tip of the blade of a single rotor received the expansion pressure caused by the explosion of fuel in the combustion chamber, causing the rotor to rotate and converting it into rotational energy, but because it was a single rotor, a lot of unused energy was discarded from the exhaust port. It had been. this
This phenomenon has also occurred in conventional internal combustion engines such as reciprocating engines, and many proposals have been made to solve the problem.
In addition, when conventional mufflers are attached to reduce the explosion noise caused by combustion, they reduce their efficiency as a resistance element to kinetic energy.

Conventional piston motion type reciprocating engines share the same cylinder with the four steps of injection, compression, explosion, and exhaust as one cycle, and each step is operated sequentially by the forward and backward movement of the crank rod, so one quarter of each cycle is The remaining three-quarters of the process is inefficient as it is on standby, so the number of cylinders may be increased to strengthen the driving force, and the same cylinder is used for the fuel injection process and the explosion process. When processes are carried out, there is always a concern about safety vulnerabilities due to highly flammable materials in the form of atomized fuel or combustion gases such as hydrogen.However, the rotary engine of the present invention isolates each of the process chambers independently. This increases safety and the four processes operate simultaneously, so in the case of a rotor equipped with three blades, one third rotation of the rotor is one cycle, and the expansion stroke is shorter than in the case of a rotor equipped with four blades. The circumferential distance of the blade is long, and in one rotation, each cycle is the same as the number of blades, and regardless of the number of blades, efficient driving force without standby allows the engine to be made smaller and lighter.

Conventionally, an internal combustion engine that generates driving force by the eccentric movement of an internal triangular rotor, called a Wankel rotary engine, should be called a crankless reciprocating engine due to its eccentric drive mode.On the other hand, the rotary engine of the present invention The engine achieves effectiveness without eccentric losses.

An embodiment of the present invention will be described based on FIGS. 1, 2, 3, and 4.
In addition, in the drawings, one of the communication shapes of the exhaust port, discharge port, and inlet has a long diameter, because the opening is long and parallel to the rotational axis direction of the cylindrical rotor. This is because openings such as the inlet and the inlet are made large to match the shape of the cylindrical body to allow process gas to pass through quickly.
In addition, in this embodiment, the rotors and outer circumferences of the parent cylindrical body and the child cylindrical body are made of the same diameter size, but by making them different diameter sizes, In some cases, the width of the sliced shape of the child cylindrical body may be adjusted to provide a packaging style that matches the installation environment of the rotary engine of the present invention.

A part of the inner radius of the base 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 the base cylindrical body is inserted into the base cylindrical body housing 24. In the case of each blade 5 moving forward and backward toward the inner circumferential wall of the base cylindrical body housing 24 mounted in each vane groove 23 bored at a depth that does not reach the rotation axis A of the rotor 21, The inside of the body housing 24 is divided into three parts, and in the explosion chamber 2211 where the ignition element 8, which is divided by the tips 51 of the blades 5, is located in the explosion exhaust space 221, which is divided into one-third of the inner circumference, the air is compressed. The combustion gas ignited by the ignition element 8 explodes and expands, pushing the tip 51 from the rear side in the direction of rotation and rotating the base cylindrical rotor 21 in the direction B to the exhaust port 26 at the end of the space. process, and an exhaust process in which the combustion gas on the front side in the direction of rotation of the tip part 51 is pushed by rotation and exhausted from the exhaust port 26 at the end part in the direction C. As the rotor 21 rotates, the tip 51 passes the introduction port 27 and sucks combustion gas from the introduction port 27 at the starting end in the direction D, and the tip 51 at the rear in the rotor rotational direction passes through the introduction port 27. During the suction stroke, the combustion gas is sealed in the suction compression space 223, and the front side of the tip 51 in the rotational direction pushes the sealed combustion gas in the rotational direction to connect the base cylinder rotor 21 and the base cylinder. FIG. 3 is a schematic cross-sectional view of the base cylindrical body 2 in a situation where there is a compression stroke in which the volume of combustion gas is compressed and compressed by passing through a narrow gap on the inner periphery of the body housing 24 and transferred to the ignition element 8; A part of the inner radius of the child cylinder body 3 of the rotary engine 1 is enlarged as an explosion extension space 324 with an inlet 37 at the starting end and an outlet port 36 at the terminal end in the child cylinder body housing 32. The inside of the child cylindrical body housing 32 is divided by each blade 5 attached to each child cylindrical body blade groove 33, which is bored at a depth that does not reach the rotation axis A of the child cylindrical body rotor 31 inserted. The introduction port 37 at the starting end of the explosion extension space 324 divided by the tip 53 communicates with the exhaust port 26, which is not visible in this figure, so that the tip 53 receives the combustion gas from the direction C, and the tip 53 receives the combustion gas from the direction C. FIG. 3 is a schematic cross-sectional view of the child cylindrical body 3 in a state where the child cylindrical body rotor 31 is rotated in the direction of C and expansion energy is discharged in the direction of C through the discharge port 36 at the terminal end. Each of the cylindrical body rotors 21, 31 of the mother cylindrical body 2, the child cylindrical body 3, and the child cylindrical body 4, which are cylindrical bodies of the same diameter and cannot be visually recognized due to their overlapping state, of the rotary engine 1, 41 are connected with the rotation axis A in a straight line, and the explosion exhaust space 221 of the mother cylinder rotor 21 of the mother cylinder 2 and the explosion extension space 324 of the child cylinder rotor 31 of the child cylinder 3, Assuming that the explosion extension space 423 of the child cylindrical body rotor 41 of the child cylindrical body 4 divides the inner periphery of each housing into three parts each at the position of the transparent dotted line 71, and the total area covers one circumference of the inner periphery of each housing. , the exhaust port 26 and the inlet port 37, and the exhaust port 36 and the inlet port 47 are in communication with each other, and the exhaust gas is directed in the direction C from the position of the exhaust port 46, which is apparently in the same position as the ignition element 8, and which is identified in the later figure. FIG. 2 is a schematic external view of the rotary engine 1 in a state where the rotary engine is discharged from the side of the above-mentioned schematic cross-sectional view. In the rotary engine 1, combustion gas is taken in from the direction C into the introduction port 27 schematically shown by the dotted line in the main cylindrical body 2, and the rotation axis A of the main cylindrical body 2 where the ignition element 8 is located and the child cylindrical body 3 The respective rotation axes A shown by dotted lines of the child cylindrical body 4 are connected in a straight line, and the cylindrical bodies are stacked and integrated, and the combustion gas in the mother cylindrical body 2 is discharged through the communicating exhaust port 26. The child passes through the inlet port 37 in the direction E and moves into the child cylindrical body 3, and the inlet port 47, which is located on the opposite side and is not visible, is connected to the inlet port 47, which is schematically shown by a dotted line. The combustion gas moves in the direction F from the inside of the cylindrical body 3 into the child cylindrical body 4, and the expansion energy of the combustion gas is released in the direction of C at the discharge port 46 schematically indicated by the dotted line without communication. FIG. 2 is a schematic external view of the rotary engine 1 as viewed from a side parallel to the rotation axis A.

1 Rotary engine 2 Mother cylindrical body Triple cylindrical body Quadruple cylindrical body 5 blades 8 Ignition elements 21 Mother cylindrical body rotor
23 Blade groove 24 Mother cylindrical body housing 26 Exhaust port 27 Inlet port 31 Child cylindrical body rotor 32 Child cylindrical body housing 33 Child cylindrical body vane groove 36 Discharge port 37 Inlet port 41 Child cylindrical body rotor 46 Discharge port 47 Inlet port 51 tip 53 tip
71 Dotted line 221 Explosion exhaust space 223 Suction 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 part of the inner radius of the base cylinder body 2 having a cylindrical inner circumferential wall is enlarged to provide a base cylinder body housing 24 in which an explosion exhaust space 221 is formed, and a rotating shaft of a separately provided base cylinder body rotor 21 is provided. A base cylindrical body rotor equipped with vanes 5 which move forward and backward toward the inner circumferential wall of the base cylindrical body housing 24 to partition the inside of the base cylindrical body housing 24 in several vane grooves bored in the radial direction from the base cylindrical body rotor. 21 into its base cylindrical body housing 24,
An ignition element 8 is provided at the starting end of the explosion exhaust space 221 in the rotational direction of the base cylindrical body rotor 21,
Explosive pressurized gas continuously supplied into the explosion chamber divided by the tips of the advanced blades 5 explodes, pushing the tips of the blades and rotating the base cylindrical rotor 21,
An exhaust port 26 is set at the end of the explosion exhaust space 221, and the base cylindrical body housing 24 is formed into a cylindrical body with both sides closed by side walls.
The explosion extension space 324, which has a cylindrical inner peripheral wall and has a larger inner radius at one point, has an inlet 37 for introducing explosive gas from the explosion exhaust space 221 at the starting end, and an inlet 37 for the explosive gas from the explosion exhaust space 221 at the terminal end. A child cylindrical body housing 32 is provided with an explosive gas outlet 36,
The vanes 5 which move forward and backward toward the inner circumferential wall of the secondary cylindrical body housing 32 to partition the inside of the secondary cylindrical body housing 32 are attached to several blade grooves bored in the radial direction from the rotating shaft as described above. The child cylindrical body rotor 31 is inserted into the child cylindrical body housing 32, and one or more cylindrical bodies are provided in which both sides of the child cylindrical body housing 32 are closed by side walls,
The rotation axis of the mother cylindrical body rotor 21 and the rotation axis of the one or more child cylindrical body rotors 31 are connected in a straight line,
The central axis of the mother cylindrical body housing 24 and the central axis of the child cylindrical body housing 32 are connected in a straight line, and the cylindrical bodies are stacked and integrated,
A rotary engine 1 in which an inlet 27 for introducing combustion gas into a mother cylindrical body housing 24 and an outlet for one or more child cylindrical bodies from a child cylindrical body housing 32 are communicated with each other.

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