JPS6339771B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial Application Field" The present invention relates to a gear internal combustion engine, and an object of the present invention is to provide a completely novel internal combustion engine that extracts power directly from rotational motion.

"Problems to be solved by the prior art and the invention" In the conventional reciprocating internal combustion engine, the piston,
Reciprocating parts such as connecting rods and bushing rods vibrate a lot, making it difficult to rotate them at higher speeds than specified.In reciprocating engines, pistons, piston rings, liners, and other parts that are exposed to combustion gas and slide at high speed wear out quickly. do. In addition, since conventional internal combustion engines use intermittent combustion, it is necessary to ignite each cycle to continue combustion, which requires more fuel than continuous combustion, which limits the amount of fuel that can be reduced. Intermittent combustion requires a fuel injection pump and nozzle, as well as magnets and coils to ensure ignition timing, making the structure complex.

Further, as a gear internal combustion engine in which an even number of operating gears of four or more are arranged in an annular shape and meshed with each other, there is a prior art described in Japanese Patent Application Laid-open No. 15911/1983. In this geared internal combustion engine, the air-fuel mixture is supplied to the center of a plurality of operating gears arranged in an annular manner (point B), and the meshing of the gears at the meshing part (point A) where the operating gears mesh outward is shallowed. The air-fuel mixture is then sandwiched between the teeth of the gear, transported to point A, and ignited at point A.
When the teeth of the gear at point A try to separate and create a small gap, fire enters the teeth and burns, expanding the gas and rotating the gear, while the operating gear turns inward. The meshing of the gears at the meshing part (point D) is made so that there is no gap in order to prevent combustion gas from entering the center point B.

In this prior art gear internal combustion engine, the gear engagement at point A is shallow, so compression does not increase.
Furthermore, it is not possible to provide an engine with high thermal efficiency.

In a gear internal combustion engine, the first invention increases the compression and thermal efficiency, the second invention makes the engine more compact, the third invention makes it easier to manufacture and repair, and the fourth invention makes the engine structure simpler. , exhaust gas heat is used to improve fuel vaporization, improving combustion performance.

"Means to be Solved by the Invention" Therefore, in order to solve the above problems, the first invention supplies the compressed gas trapped between the teeth through the air supply hole, the pre-combustion chamber, and the combustion gas passage opening. The compressed gas is not allowed to pass through at all at the meshing point of the gears.

The second invention is such that power is extracted by meshing the small gear of the operating gear arranged in an annular manner with the large gear of the central shaft.

In the third aspect of the invention, the engine housing is divided into an operating gear case, a combustion block, a governor cover, and a flywheel cover, which can be stacked together and the central shaft can be inserted therethrough.

In the fourth invention, an annular exhaust pipe having one exhaust port is connected to the operating gear case, and one exhaust pipe is connected to the combustion block.
This is a connected annular intake pipe with several air intake ports.

"Embodiments" Hereinafter, the first to fourth inventions will be described in detail based on specific embodiments shown in the accompanying drawings. Six operating gears 1, 2, 3, 4, 5, and 6 are arranged in an annular manner and supported by an operating gear case 7 so as to mesh with each other. The six operating gears 1, 2, 3, 4, 5, and 6 are arranged in an annular shape and mesh with each other, so there are six meshing points, three meshing points G _I that mesh inward,
There are three outward meshing points _G0 , and inward meshing points _GI and outward meshing points _G0 alternate. Also,
The meshing point is the intersection of the straight line connecting the centers (O) of the operating gears and the reference pitch circle (PC). A small gear 8 is carved on the shaft end of every other operating gear 1, 3, 5, and this small gear 8 is connected to annular operating gears 1, 2, 5.
Operating gear case 7 located at the center of 3, 4, 5, and 6
It meshes with a large gear 10 fixed to the rear of a central main shaft 9 that passes through the center of the shaft. In this way, the second invention, in which the small gear of the annularly arranged operating gear and the large gear of the central shaft are meshed with each other to extract power, can make the engine more compact.

The operating gear case 7 is arranged as close as possible to the outer periphery and inner periphery of the operating gears 1, 2, 3, 4, 5 _, and 6 arranged in an annular manner without coming into contact with the tips of the tooth parts _. and each inward engagement point G _I
A radial exhaust passage 12 is formed in front of the exhaust hole 1.
Connects with 3.

A combustion block 14 is arranged in front of the operating gear case 7, and an intake hole 1 is provided on the rear side of the combustion block 14.
5, 16, and 17 are carved to communicate with the rear of each inward meshing point G _I and the front end surface side of the operating gears 1, 2, 3, 4, 5, and 6.

Each outward meshing point G ₀ on the rear surface of the combustion block 14
A ferrule 18 made of a special heat-insulating alloy is embedded in a portion facing the combustion block 14 to form spherical pre-combustion chambers 19, 20, 21 between the ferrule 18 and the combustion block 14. Furthermore, a hemispherical heat-resistant material may be used for the inner surface of the pre-combustion chambers 19, 20, 21 on the combustion block 14 side. Intake hole 15,1
The air taken in from 6, 17 is transferred to the operating gear 1,
Circular wall surface 11 by rotation of 2, 3, 4, 5, 6
It flows in front of the outward meshing point G ₀ through _I , is trapped between the meshing teeth of the operating gears 1, 2, 3, 4, 5, and 6, and is compressed to high pressure. In order to guide this compressed air to the pre-combustion chambers 19, 20, 21, an air supply port 22 is opened in the rear end face of the combustion block 14 at a position in front of the outward meshing point _G0 , for example, as shown in FIG. We will communicate at In addition, although two air supply ports 22 are shown in FIG. 3, the number may be one if necessary.

The combustion block 14 is provided with air-fuel mixture compression gear pumps 24, 25, 26 arranged near the central main shaft 9 and driven by the central main shaft 9, and these gear pumps 24, 25, 26 are opened to the side of the combustion block 14. The air intake port 27 and the air passage 28 communicate with each other, and a fuel passage 30 that is opened and closed by a needle valve 29 is opened in the middle of the air passage 28. A governor 31 fitted to the tip of the central spindle 9 is a coil spring 3
2, the combustion block 14
The head of the needle valve 29, which is biased forward by a coil spring 35, is brought into contact with the middle part of the lever 34, whose base end is pivotally connected to the governor cover 33, which is placed in front of the lever and covers the governor 31, etc. 34 is brought into contact with the back surface of the governor 31. When the rotation of the central main shaft 9 becomes faster, the governor 31 moves backward on the central main shaft 9 as the rotational speed increases, moves the needle valve 29 backward via the lever 34, and operates the air passage 28 of the fuel passage 30. The fuel flow path at the opening is narrowed, resulting in less fuel supply. In this way, the amount of fuel relative to air is adjusted by the needle valve 29, and the gear pumps 24, 25, 26 are driven to form a mixture of air and fuel, which is then passed through the compressed mixture passage 36 into the pre-combustion chamber. Supply on 19, 20, 21. The compressed mixture passage 36 is provided with a pressure regulating valve 37 near the pre-combustion chambers 19, 20, 21 to prevent combustion gas from flowing back toward the gear pumps 24, 25, 26. It is pumped against the set pressure. Note that the gear pumps 24, 25, and 26 compress air and convey fuel using it, and have a constant capacity, and the amount of fuel to be supplied is adjusted by a needle valve 29. In addition, the compressed mixture passage 3 is used to ignite the compressed mixture injected into the pre-combustion chambers 19, 20, 21.
Glow plug 3 so that it faces just in front of the opening in 6.
Place 8, 39, 40. Gear pump 24, 2
The compressed air-fuel mixture supplied at 5, 26 against the set pressure of the pressure regulating valve 37 is always injected into the pre-combustion chambers 19, 20, 21, and is sent to the operating gears 1, 2, 3, through the compressed air passage 23. The compressed air that is injected as the parts 4, 5, and 6 rotate becomes a vortex in the precombustion chambers 19, 20, and 21, and is ignited by the glow plugs 38, 39, and 40. is constantly burning. The compressed air is injected into the operating gear 1,
One rotation of 2, 3, 4, 5, and 6 injects the same number of times as the number of teeth into the precombustion chambers 19, 20, and 21, but the compressed mixture is injected into the precombustion chambers 19, 20, and 21 during combustion and glow Since the plugs 38, 39, and 40 are ignited, combustion continues at all times in the precombustion chambers 19, 20, and 21. The first invention has better combustion efficiency than a conventional internal combustion engine that supplies extra fuel because it ignites every cycle and continues combustion.

The combustion gas in the pre-combustion chambers 19, 20, 21 is directed outward to the operating gears 1, 2, 3, 4, behind the meshing point _G0 .
A combustion gas passage port 42 leading to the combustion chamber 41 formed between the tooth surfaces 5 and 6 is opened at the end face of the mouthpiece 18 behind the outward meshing point _G0 , for example, as shown in FIG. to communicate. Although two combustion gas passage ports 42 are shown in FIG. 3, one may be provided if necessary, and the positional relationship with the air supply port 22 is such that the combustion gas passage port 42 is shown in FIG. The air supply port 22 is arranged so as to open after being closed by the side surfaces of the operating gears 1, 2, 3, 4, 5, and 6. However, the combustion gas passage port 42 and the air supply port 22 may be set to open at the same time with a slight overlap.

Combustion gas passage 4 from pre-combustion chambers 19, 20, 21
The combustion gas that has reached the combustion chamber 41 through the combustion chamber 3 expands and rotates the operating gears 1, 2, 3, 4, 5, and 6.
The expanded combustion gas is transferred to operating gears 1, 2, 3, 4,
5, 6 and the arcuate wall surface ₁₁₀ to the exhaust passage 12, but the arcuate wall surface ₁₁₀ is within the range where the tips of the teeth of the operating gears 1, 2, 3, 4, 5, and 6 do not come in contact with each other. Since they are formed close to each other, the exhaust passage 12
When the arc-shaped wall surface 11 ₀ is reached, the expanded combustion gas moves between the arc-shaped wall surface 11 ₀ and the operating gears 1, 2, 3,
The operating gears 1, 2,
Exhaust jet flow path 4 is located outside the tips of teeth 3, 4, 5, and 6.
4 is provided on the downstream side.

An internal gear pump 45 is provided in the operating gear case 7 portion of the central main shaft 9. The internal gear pump 45 has a central main shaft 9
A pinion 46 is attached to the central main shaft 9 as a drive shaft, and an internal gear 47 is engaged eccentrically with the pinion 46. A crescent-shaped spacer 48 is provided between the pinion 46 and the internal gear 47, and an oil intake port 49 and an oil discharge port 50 are provided. Form. Oil holes 51 are axially penetrated through the operating gears 1, 2, 3, 4, 5, and 6, respectively, and are located within the thickness of a flywheel cover 53 that covers a flywheel 52 attached to the rear end of the central main shaft 9. Drilled oil hole 5
4. Oil hole 5 in the axial direction within the wall thickness of the operating gear cover 7
5 and a circumferential oil hole 56 to an oil tank (not shown) and the internal gear pump 45, and supply lubricating oil to the axial oil of the operating gears 1, 2, 3, 4, 5, and 6. It is supplied to the hole 51 to lubricate the bearing surface and cool the operating gears 1, 2, 3, 4, 5, and 6.

The third invention provides an operating gear case 7, a combustion block 14, a governor cover 33, and a flywheel cover 53 to facilitate the production of frames, cases, and covers that support, constitute, or cover functional parts.
It is divided into four parts, made of die-cast material, and the central main shaft 9 can be inserted therethrough so that the main shaft 9 can be sequentially superposed, and the joint surfaces of the respective parts are formed in a plane perpendicular to the central main shaft 9.

In the fourth invention, an annular exhaust pipe 58 having one exhaust port 57 is connected to the front of the operating gear case 7 so that the combustion gas is not exhausted from each exhaust hole 13 individually but from one location. In addition, an annular intake pipe 60 having one air intake port 59 is connected to the front of the combustion block 14 to take in air from the intake holes 15, 16, and 17 from one place. is formed to protrude so as to cover the fan 61 attached to the tip of the central main shaft 9 and to be located inside the exhaust pipe 58,
The intake air is heated by the combustion gas to improve combustion. Further, since the exhaust pipe 58 is arranged outwardly, it is preferable in terms of heat dissipation. Furthermore, since the fan 61 is located at the center of the front end of the device, cooling of the entire device is extremely easy.

62 and 63 are bearings for the central main shaft 9, 64 is a ring gear, and 65 is a starter motor.

In the gear internal combustion engine described above, when the starter motor 65 is driven, the central main shaft 9 rotates via the ring gear 64 and flywheel 52, and the operating gears 1, 2, 3, 4, 5, and 6 rotate via the large gear 10 and small gear 8. Rotate and start. Exhaust passage 12, exhaust hole 13 in front of inward meshing point _G1 of operating gears 1, 2, 3, 4, 5, 6;
Exhaust the combustion gas from the exhaust pipe 58 and the exhaust port 57,
Intake holes 15, 16, 1 behind inward engagement point G ₁
Air is taken in through the air intake port 59 and the intake pipe 60 at 7, and as the operating gears 1, 2, 3, 4, 5, and 6 rotate, the air flows outward through the arcuate wall surface _11I to the meshing point.
Flow-in operation gears 1, 2, 3, 4 in front of G ₀ ,
The air is trapped between the meshing teeth of 5 and 6 and compressed to a high pressure, which is then injected into the pre-combustion chambers 19, 20 and 21 through the compressed air passage 23, forming a vortex. on the other hand,
The air-fuel mixture formed by the gear pump 24 passes through the passage 36 and enters the pre-combustion chambers 19, 20, 2.
The combustion gas is injected into the combustion chamber 41 through the passage 43, mixed with the air vortex, ignited by the glow plugs 38, 39, and 40, and combustion continues continuously. . Operating gears 1, 2, 3, 4,
The power generated at 5 and 6 is transmitted to the central main shaft 9 via a small gear 8 and a large gear 10.

The above description has been about an embodiment in which six working gears with the same diameter are arranged in an annular manner and mesh with each other, but the present invention can be applied as long as the working gears are an even number of four or more, and even if they are not the same diameter. Furthermore, the power can be taken out not only from the central spindle disposed at the center but also from an internal gear or the like in which the operating gear is inscribed.

"Effects of the Invention" As described above, the first invention has no reciprocating parts and can rotate at high speed, making it possible to provide a lightweight, compact, and low-cost internal combustion engine. Additionally, unlike conventional reciprocating engines, there are fewer sliding parts that are exposed to exhaust gas, resulting in improved durability. Furthermore, since conventional internal combustion engines have intermittent combustion, it is necessary to ignite each cycle to continue combustion, which requires a large amount of fuel, and there is a limit to how much fuel can be reduced.However, the present invention uses continuous combustion, which makes it possible to reduce fuel supply. The continuous combustion reduces exhaust noise, eliminates the need for fuel injection pumps, nozzles, magnets, coils, etc., and simplifies the structure, making it possible to provide a low-cost internal combustion engine.

In conventional gear internal combustion engines, the meshing part of the gears is shallow, resulting in poor compression and low thermal efficiency.However, the first invention uses compressed gas trapped between the teeth. The compressed gas is allowed to flow through the air supply hole, the pre-combustion chamber, and the combustion gas passage opening, and no compressed gas is allowed to pass through the meshing points of the gears, so the required compression can be obtained and an engine with high thermal efficiency can be provided. Can be done.

In the second invention, the small gear of the operating gear arranged in an annular manner and the large gear of the central shaft are meshed to extract power, so that the engine can be made compact.

In the third aspect of the invention, the engine housing is divided into an operating gear case, a combustion block, a governor cover, and a flywheel cover, which can be stacked together and the central shaft can be inserted therethrough, making it easy to manufacture and repair.

In the fourth invention, an annular exhaust pipe having one exhaust port is connected to the operating gear case, and one exhaust pipe is connected to the combustion block.
Since an annular intake pipe having separate air intake ports is connected, the structure of the engine is simplified, and exhaust gas heat can be used to improve fuel vaporization, resulting in improved combustion performance.

[Brief explanation of the drawing]

1 is a front view of a specific embodiment of the present invention, FIG. 2 is a side sectional view of FIG. 1, and FIG. 3 is an enlarged front view of the main part of FIG. 1. 1, 2, 3, 4, 5, 6...operating gear, G ₁ ...
...Inward meshing point, G ₀ ...Outward meshing point, 8...
Small gear, 9... Central spindle, 10... Large gear, 7...
... Working gear case, 19, 20, 21... Pre-combustion chamber, 14... Combustion block, 31... Governor,
33... Governor cover, 52... Flywheel, 53... Flywheel cover, 57... Exhaust port, 58... Exhaust pipe, 59... Air intake port, 6
0...Intake pipe.

Claims (1)

[Claims] 1. An even number of 4 or more operating gears are arranged in a ring and mesh with each other, and exhaust and intake air is performed at the meshing portion where the operating gears mesh inwardly, and the outer meshing point An arc-shaped wall surface for sealing is formed as close as possible to the tip of the tooth part to an appropriate position in the front, without contacting the tip of the tooth part, and the teeth that mesh with each other near the outward meshing point are formed in front of the outward meshing point. opening an air supply port that guides the compressed gas trapped between the combustion chambers, communicating the air supply port and the pre-combustion chamber, and opening a combustion gas passage port behind the outward meshing point and near the outward meshing point; A gear internal combustion engine that communicates a combustion gas passageway with a pre-combustion chamber, and performs compression, explosion, and expansion at a meshing portion where working gears mesh outward. 2 An even number of 4 or more operating gears are arranged in a ring and mesh with each other, and exhaust and intake air is performed at the meshing part where the operating gears mesh inwardly, and the teeth are moved to an appropriate position in front of the outward meshing point. Forms an arcuate wall surface for sealing as close as possible without contacting the tip of the part, and is trapped between the teeth meshing near the outward meshing point in front of the outward meshing point. An air supply port for guiding compressed gas is opened, the air supply port and the pre-combustion chamber are communicated with each other, and a combustion gas passage port is opened behind the outward meshing point and near the outward meshing point, so that the combustion gas passage port and the pre-combustion chamber communicate with each other. Compression, explosion, and expansion are carried out in the meshing part that communicates with the combustion chamber and where the working gear meshes outward. Small gears are provided at the shaft ends of every other working gear, and the working gears are arranged in an annular manner. A gear internal combustion engine consists of a large gear fixed to a central spindle that meshes with each other. 3 An even number of 4 or more working gears are arranged in a ring and mesh with each other, and exhaust and intake air is performed at the meshing part where the working gears mesh inwardly, and the teeth are moved to an appropriate position in front of the outward meshing point. Forms an arcuate wall surface for sealing as close as possible without contacting the tip of the part, and is trapped between the teeth meshing near the outward meshing point in front of the outward meshing point. An air supply port for guiding compressed gas is opened, the air supply port and the pre-combustion chamber are communicated with each other, and a combustion gas passage port is opened behind the outward meshing point and near the outward meshing point, so that the combustion gas passage port and the pre-combustion chamber communicate with each other. Compression, explosion, and expansion are carried out at the meshing part where the operating gear meshes outward, communicating with the combustion chamber. an operating gear case that accommodates
The combustion block that provides the pre-combustion chamber and the air-fuel mixture formation mechanism, and the flywheel cover that houses the flywheel attached to the rear end of the central spindle are made of die-cast material and are formed on a plane perpendicular to the central spindle so that they can be polymerized. A gear internal combustion engine. 4 An even number of working gears of 4 or more are arranged in a ring and mesh with each other, and exhaust and intake air is performed at the meshing part where the working gears mesh inwardly, and the teeth are moved to an appropriate position in front of the outward meshing point. Forms an arcuate wall surface for sealing as close as possible without contacting the tip of the part, and is trapped between the teeth meshing near the outward meshing point in front of the outward meshing point. An air supply port for guiding compressed gas is opened, the air supply port and the pre-combustion chamber are communicated with each other, and a combustion gas passage port is opened behind the outward meshing point and near the outward meshing point, so that the combustion gas passage port and the pre-combustion chamber communicate with each other. Compression, explosion, and expansion are carried out in the meshing part that communicates with the combustion chamber and where the working gear meshes outward. Small gears are provided at the shaft ends of every other working gear, and the working gears are arranged in an annular manner. In a gear internal combustion engine that meshes with a large gear fixed to a central main shaft installed at the center, an annular exhaust pipe having one exhaust port is connected to an operating gear case housing operating gears arranged in an annular manner. A gear internal combustion engine in which an annular intake pipe having one air intake is connected to a combustion block provided with a combustion chamber and a mechanism for forming a mixture of air and fuel.