JPS6343388Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a completely novel cooling and lubricating device for a gear internal combustion engine that extracts power directly from rotational motion.

In conventional impeller-type gas turbines, it is difficult to cool the blades, which limits the temperature of the working gas, and it is also difficult to compress the working gas to a high degree, making it impossible to increase thermal efficiency. Therefore, in order to solve the above problems, the present invention utilizes the confinement phenomenon that occurs between the teeth of the meshing part by arranging an even number of operating gears of four or more in a ring. In addition to generating high-pressure gas, the shaft of the operating gear is formed hollow and communicated with a lubricating oil pump.

Hereinafter, the present invention 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 so as to mesh with each other and are supported by an operating gear case 7.
The six operating gears 1, 2, 3, 4, 5, and 6 are arranged in a ring and mesh with each other, so there are six meshing points, three meshing points G I that mesh inward, and three meshing points G _I that mesh outward. There are three meshing points G _O that mesh with the inward meshing points.
G _I and outward engagement point G _O alternate. Furthermore, the meshing point is the intersection of the straight line connecting the centers O between the working 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 an annular operating gear 1, 2, 3, 4, 5, 6.
It meshes with a large gear 10 fixed to the rear of a central main shaft 9 which is disposed at the center of the operating gear case 7 and passes through the center of the operating gear case 7.

The operating gear case 7 is arranged as close as possible to the outer and inner peripheries 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 has arcuate wall surfaces _11O , _11I. 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 wall 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 engagement point on the rear wall of the combustion block 14
Special alloy base 1 with heat insulation in the part facing G _O
8 is buried to form spherical pre-combustion chambers 19, 20, 21 between the combustion block 14 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 1
Due to the rotation of the operating gears 1, 2, 3, 4, 5, 6, the air taken in from the operating gears 1, 2, 3, 4, 5, and 6 flows through the arcuate wall surface 11 _I to the front of the outward meshing point G _O. It is trapped between the meshing teeth of 3, 4, 5, and 6 and 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 wall surface of the combustion block 14 in front of the outward meshing point G _O , for example, at the position shown in FIG. 23 and communicate. In addition, although two air supply ports 22 are shown in FIG. 3, it 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 causes the air passage 28 of the fuel passage 30 to move backward. The fuel flow path at the opening is narrowed, resulting in less fuel supply. In this way, the gear pumps 24, 25, and 26 are driven while adjusting the amount of fuel relative to the air with the needle valve 29 to form a mixture of air and fuel, which passes through the compressed mixture passage 36 to the pre-combustion chamber 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. Force feed 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 facing directly 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 with the rotation of parts 4, 5, and 6 becomes a vortex in the precombustion chambers 19, 20, and 21, and is ignited by the glow plugs 38, 39, and 40, and the insides of the precombustion chambers 19, 20, and 21 are ignited by glow plugs 38, 39, and 40. Burning continues all the time. The compressed air is injected into operating gears 1, 2,
The compressed mixture is injected into the pre-combustion chambers 19, 20, 21 the same number of times as the number of teeth by one rotation of 3, 4, 5, 6, but the compressed mixture is always injected into the pre-combustion chambers 19, 20, 21 and the glow plug 38 , 39, 40, combustion continues at all times in the pre-combustion chambers 19, 20, 21. Combustion is more efficient than conventional internal combustion engines, which ignite each cycle and provide extra fuel to continue combustion.

The combustion gas in the pre-combustion chambers 19, 20, 21 is directed outward to the meshing point _GO of the rear operating gears 1, 2, 3, 4, 5,
A combustion gas passage port 42 leading to the combustion chamber 41 formed between the tooth surfaces of No. 6 is opened at the end face of the mouthpiece 18 behind the outward meshing point G _O , for example, as shown in FIG. do. 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 end faces 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 _11O to the exhaust passage 12, but the arcuate wall surface _11O 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
Assuming that the arc-shaped wall surface 11 _O reaches the arc-shaped wall surface 11 O, the expanded combustion gas moves between the arc-shaped wall surface 11 _O and the operating gears 1, 2, 3,
The operating gears 1 and 6 are operated in order to use the expanded combustion gas as dynamic energy because it does not operate as effective energy trapped between the gears 4, 5, and 6.
An exhaust jet flow path 44 is provided on the downstream side outside the tips of the teeth 2, 3, 4, 5, and 6.

This gear internal combustion engine has an operating gear case 7 and a combustion block 1 in order to facilitate the production of frames, cases, and covers that support, constitute, or cover functional parts.
4. The governor cover 33 and the flywheel cover 67 are divided into four parts, made of die cast, and the central main shaft 9 can be inserted therethrough so that they can be sequentially overlapped, and their joint surfaces are formed perpendicular to the central main shaft 9.

An annular exhaust pipe 46 having one exhaust port 45 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. Also, combustion block 1
An annular intake pipe 48 having one air intake port 47 is connected to the front of the main shaft 9 to take in air from the intake holes 15, 16, and 17 from one place. It protrudes to cover the fan 49 attached to the tip of the fan 49 and forms a cowling to improve the air blowing efficiency of the fan 49.
Further, since the exhaust pipe 46 is arranged on the outside, it is preferable for heat radiation. Furthermore, since the fan 49 is located at the center of the front end of the device, cooling of the entire device is extremely easy.

50 and 51 are bearings of the central main shaft 9, 52 is a ring gear, and 53 is a starter motor.

In the gear internal combustion engine described above, when the starter motor 53 is driven, the central main shaft 9 rotates via the ring gear 52 and the flywheel 66 attached to the rear end of the main shaft 9.
2, 3, 4, 5, and 6 rotate and start. The combustion gas is discharged from the exhaust passage 12, exhaust hole 13, exhaust pipe 46, and exhaust port 45 in front of the inward meshing point G _I of the operating gears 1, 2, 3, 4, 5, and 6, and the combustion gas is discharged from the inward meshing point G I.
_{G ​} The air flows outward to the front of the meshing point G _O , is trapped between the meshing teeth of the operating gears 1, 2, 3, 4, 5, and 6, is compressed, becomes high pressure, and passes through the compressed air passage 23, where it is pre-combusted. Room 19, 20,
21 and becomes a vortex. On the other hand, gear pump 24
The mixture of air and fuel formed by
6 and into the pre-combustion chambers 19, 20, 21 and mixes with the air vortex to form glow plugs 38, 39, 4.
The combustion gas is ignited by 0 and continues to burn constantly, and the combustion gas is injected into the combustion chamber 41 through the passage 43 and expands, rotating the operating gears 1, 2, 3, 4, 5, and 6. As it passes, the jet rotates the operating gears 1, 2, 3, 4, 5, 6 and reaches the passage 12. The power generated in the operating gears 1, 2, 3, 4, 5, and 6 passes through the small gear 8 and large gear 10 to the central main shaft 9.
is transmitted to.

For cooling and lubrication, a lubricating oil pump 55, which is an internal gear pump, is provided in the operating gear case 7 of the central main shaft 9. This lubricating oil pump 55 has a central main shaft 9 as a driving shaft, a pinion 56 is attached to the central main shaft 9, and an internal gear 57 meshes eccentrically with the pinion 56. A crescent-shaped spacer metal 58 is disposed between the pinion 56 and the internal gear 57.
are provided to form an oil intake port 59 and a discharge port 60. The shafts 61 of the operating gears 1, 2, 3, 4, 5, 6 are hollow 62
The hollow 62 is filled with lubricating oil.
2, 3, 4, 5, and 6, a conduit 63 leading from one end side to the other end side is arranged. The hollow 62 has operating gears 1, 2,
The teeth and shaft 6 are designed to be suitable for cooling parts 3, 4, 5, and 6.
The large diameter portion 1 is formed to be large. Further, the shaft 61 includes the hollow 62 portion and the operating gears 1, 2, 3, 4, 5,
An oil hole 64 communicating with the shaft bearing part 6 and a nozzle hole 65 communicating with the inside of the operating gear case 7 are provided. Although the shafts 61 of the operating gears 1, 2, 3, 4, 5, and 6 are shown integrally formed in this embodiment, they are not limited to this and may be formed separately. Alternatively, oil holes (not shown) facing the rear wall surface of the combustion block 14 may be opened in the end surfaces of the operating gears 1, 2, 3, 4, 5, and 6 so as to communicate with the hollow portion 62. . A flywheel cover 67 that covers the flywheel 66 attached to the rear end of the central main shaft 9
It is connected to the lubricating oil pump 55 and oil tank 72 through an oil hole 68 drilled in the wall thickness, an oil hole 69 drilled in the wall thickness of the operating gear case 7, and oil holes 70, 71 in the circumferential direction. .

When the central main shaft 9 rotates, the pinion 56 of the lubricating oil pump 55 also meshes with the internal gear 57 and rotates, sucking up lubricating oil from the oil tank 72 through the oil hole 71 and the oil inlet 59 to the lubricating oil pump 55, and then pumping it into the lubricating oil pump 55 through the oil outlet 60. , oil hole 70, oil hole 69, oil hole 68, operating gears 1, 2,
It is supplied to the hollow part 62 through conduits 63 3, 4, 5, and 6. With this lubricating oil, the operating gears 1, 2, 3,
4, 5, and 6 are cooled. Also, the lubricating oil is in the oil hole 6.
4, the lubricating oil reaches the shaft bearings of the operating gears 1, 2, 3, 4, 5, and 6 and lubricates them. Cooling of the lubricating oil is promoted. These lubricating oils flow back into the oil tank 72 (the circulation oil path is not shown).

Furthermore, the lubricating oil is applied to the operating gears 1, 2, 3, 4,
5 and 6 toward the rear wall surface of the combustion block 14, and oil holes are opened in the end surfaces of the operating gears 1, 2, 3, 4, 5, and 6, the lubricating oil is brought into contact with the rear end surface of the combustion block 14. It enters between the end faces of the gears 1, 2, 3, 4, 5, and 6 to lubricate them, and is sucked in through the intake holes 15, 16, and 17 to actuate the operating gears 1, 2, and 6.
The compressed air trapped between the teeth 3, 4, 5, and 6 is injected into the compressed air passage 23, and the combustion gas in the pre-combustion chambers 19, 20, and 21 is expanded to form the combustion gas passage. 43 and into the combustion chamber 41, the rear wall of the combustion block 14 and the operating gears 1, 2,
3, 4, 5, and 6 end faces are sealed.

As mentioned above, the present invention generates high-pressure gas by arranging an even number of operating gears (four or more) in a ring shape and utilizing the confinement phenomenon that occurs between the teeth of the meshing part. In addition, a hollow part is formed in the shaft of the operating gear, and lubricating oil can be supplied there to cool the operating gear, making it possible to use high-temperature, high-pressure gas and increasing thermal efficiency as much as possible. It is possible to reduce fuel consumption.

In addition, lubricating oil flows in from the oil hole in the shaft that communicates with the shaft bearing of the operating gear and sufficiently lubricates that part, and the lubricating oil that is ejected from the nozzle hole in the shaft and hits the inner wall of the operating gear case absorbs heat from the inner wall. This makes the cooling of the operating gear even more effective. Furthermore, lubricating oil flows into the oil hole of the shaft that communicates with the shaft bearing of the operating gear to sufficiently lubricate that part.

This gear internal combustion engine has no reciprocating parts and can rotate at high speeds, and is vibration-free, lightweight, and compact, making it possible to provide a 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, conventional internal combustion engines require intermittent combustion, which requires ignition for 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, this gear internal combustion engine uses continuous combustion, so it is possible to reduce fuel supply. It is possible and
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.

[Brief explanation of the drawing]

FIG. 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 _I ...
...Inward meshing point, G _O ...Outward meshing point, 61...
...shaft, 62 ... hollow, 55 ... lubricating oil pump, 6
4... Oil hole, 7... Case, 65... Nozzle hole.

Claims (1)

[Scope of utility model registration request] An even number of four 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 compression is performed at the meshing part where the working gears mesh outwardly. In a gear internal combustion engine that performs explosion and expansion, the shaft of the working gear is formed hollow, the hollow part communicates with a lubricating oil pump, and the shaft has an oil hole and an oil hole communicating with the hollow part and the shaft bearing part of the working gear. A cooling and lubricating device for a gear internal combustion engine that has a nozzle hole that communicates with the housing case.