JP2005233168A - Four cycle three layer rotary disk valve type eight valve engine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a high output high performance engine of a small size and light weight and excellent in durability by eliminating restriction of intake and exhaust of an engine. <P>SOLUTION: In this three layer rotary disk valve type eight valve engine (intake 4, exhaust 4, total 8), intake and exhaust can be done without restriction by rotating a valve 2. Rotation of a valve gets a eighth of rotation of a crankshaft by dividing the disk into sixteen, and four times of four stroke can be done by one rotation of the valve. Namely, intake and exhaust can be done four times during one rotation of a rotary valve. Since this rotates considerably slow, intake and exhaust can be surely done. Characteristics and usage of the engine depends on how quick large quantity of mixed gas can be sucked accurately. This high performance engine can perform instant high speed and maximum cruising speed travel for a long period of time without restriction. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

Detailed Description of the Invention

Technical field to which the invention belongs

The present invention relates to a four-cycle, three-layer, disc-valve rotary, eight-valve engine in order to significantly improve the performance of engines such as automobiles.

The conventional four-cycle DOHC four-valve engine (DOHC is D double OH over head C camshaft) is an abbreviation of double over head camshaft, and two cams on the cylinder head (D double). There is a shaft (reference numeral 19 in FIG. 10), one is a dedicated intake shaft, has two intake valves and two intake ports, and the other is an exhaust dedicated shaft with two There are an exhaust valve and two exhaust ports. Each of the two shafts has a cam (reference numeral 20 in FIG. 10). The intake shaft and cam are combined into one body and the shaft rotates while intake is taking in. The intake cam pushes down the head of the intake valve (reference numeral 21 in FIG. 10), opens the intake opening (reference numeral 22 in FIG. 10), and feeds the mixed gas from the intake opening to the combustion chamber (reference numeral 25 in FIG. 10). shaft As the cam rotates as one unit and the shaft rotates, the head of the exhaust valve (reference numeral 23 in FIG. 10) is pushed down to open the exhaust outlet (reference numeral 24 in FIG. 10) and exhausted exhaust gas is sent out from the exhaust outlet. The piston (reference numeral 26 in FIG. 10) is moved up and down while alternately evacuating and the crankshaft (reference numeral 10 in FIG. 1) is rotated by the up-and-down movement. The vehicle moves by using the rotational movement as a power source. What is a four-cycle engine? Then, the piston rises in the stroke (2), compresses the mixed gas that has entered the combustion chamber, and the mixture gas compressed by the piston that has gone up in the stroke (3) emits sparks by means of a plug (reference numeral 5 in FIG. 10). The piston is pushed down by the force of the explosion that causes combustion (explosion). (4) When the lowered piston rises upward, the exhaust valve (23 in FIG. 10) uses the mixed gas burned out in the combustion chamber as the exhaust gas. It is discharged out of the combustion chamber through the exhaust port (reference numeral 24 in FIG. 10) opened downward.
As described above, the conventional type has a limit in opening and closing because the rod-like intake and exhaust valves are moved up and down by the camshaft and the cage rotating. As explained before, in 4 cycles, the crankshaft makes one revolution in the stroke of (1) and (2), and makes one revolution in the stroke of (3) and (4), that is, the crankshaft makes two revolutions in the four strokes. This is 4 strokes of 4 cycles. Of the four strokes, intake and exhaust are performed once each. In other words, in the conventional engine, the valve opening / closing camshaft makes one revolution while the crankshaft makes two revolutions, that is, half the crankshaft. For example, the engine rotation speed is limited to 6000 to 6500 rotations, but the reason is that if the engine rotation speed is 6500 rotations, the valve opening / closing camshaft will be half the 3250 rotations. As described above, since the intake and exhaust valves move up and down, 3250 rotations is the limit. That is why the tachometer of the car is red (red zone) from 6000 to over 6500 revolutions. Exceeding the red zone may cause the intake / exhaust valve opening / closing to fail to operate correctly, leading to malfunctions. Therefore, the rotational speed is limited.

Problems to be solved by the invention

In the conventional DOHC 4-valve engine, the intake and exhaust valves (reference numerals 21 and 23 in FIG. 10) move up and down due to the vertical movement by the cam (reference numeral 20 in FIG. 10), and the more the rotation increases, the more the error in the movement of the valve and valve. Will not work correctly. Therefore, the upper limit of the rotational speed is limited from 6000 to 6500, and it is impossible to rotate further. If you can increase the number of revolutions at 10,000 or 20,000 rpm without limitation, and if you can open and close the intake and exhaust valves accurately without limitation, the car will be a higher output and higher performance engine. If this is the case, naturally the conventional shaft, cam, and valve (reference numerals 19, 20, 21, 23, FIG. 10) are no longer needed, so that it is naturally small and lightweight. It is also possible to change the shape of the engine room and the bonnet, and it is a problem to eliminate the biggest drawbacks of the prior art.

Means for solving the problem

In order to be able to rotate the engine speed of the limited engine, which is the problem, without limitation, the problem of the problem is solved by developing a 4-cycle, 3-layer, disk valve rotary type, 8-valve engine. .

The four-cycle, three-layer, disc-valve rotary 8-valve engine is divided into a fixed type and a rotary type as shown in (Figs. 1, 2, 3, 4, 5, 6, 7, 1 and 2). The first and third layers (1 and 3 in FIG. 1) and the engine block (cylinder block) (17 in FIGS. 1 and 3) are combined into one body and fixed to the upper part of the cylinder, and the first and third layers. For each fixed eye type, there are 4 intake ports (2 for the conventional type) and 4 exhaust ports (2 for the conventional type) (4 for the conventional type) (8 in total) (Fig. 6). The second layer in the middle is a rotary valve (Figs. 1, 3, 4, 5 and 2), which is provided with four intake ports and four exhaust ports (Fig. 7). By rotating as a rotary valve, intake and exhaust can be performed smoothly. When the stationary inlet and the rotary inlet valve are rotated and matched, the inlet opens and sucks the mixed gas into the combustion chamber. When the outlets meet each other, the burned exhaust gas is released from the combustion chamber. . Since the number of intake ports has doubled, it is possible to inhale twice the mixed gas, so the output is naturally improved.

In the fixed type of (FIG. 6) and the rotary type of (FIG. 7), the intake port can be arranged at the same position, but the exhaust port cannot be arranged at the same position. The exhaust port on the rotation side valve in FIG. 7 is shifted by one, which means that the fixed side and the rotation side when the positions of the intake and exhaust ports on the fixed side and the rotation side are exactly the same position. The intake and exhaust ports of the engine are opened at the same time, and intake and exhaust are performed at the same time, so that it does not function as an engine at all, so that the intake and exhaust can be performed separately (FIG. 7). Are shifted by one. Thus, the intake ports open at the same time during intake, and the exhaust ports open simultaneously after the completion of 3 cycles of 4 cycles and 4 strokes at the time of exhaust, which functions as a 4-cycle engine. Here, if 4 cycles (4 strokes) are reviewed again, (1) intake (2) compression (3) combustion (explosion) (4) exhaust = (1) intake (mixed gas from the intake port to the combustion chamber) (2) Compression (mixed gas is compressed by a piston in the combustion chamber) (3) Combustion (explosion) (mixed gas compressed in the combustion chamber is ignited by a spark by a plug, which becomes the power source. (4) Exhaust (The mixed gas burned out in the combustion chamber is discharged as exhaust gas from the combustion chamber to the outside through the exhaust port and exhaust pipe). Incidentally, the rotation direction of this rotary valve is clockwise (clockwise).

Here, since there is a problem with the rotational speed (with problems) of the conventional camshaft, it will be taken up here. This three-layer, disk-rotating engine also has the same four cycles (four strokes) as the conventional type, but the difference from the conventional type is that in addition to the valve rotation method, there are four intake and exhaust valves, a total of eight valves. . The reason why the 8 valve is better is that in the conventional type, the camshaft rotation is one half of the rotation of the crankshaft, that is, the crankshaft (Fig. 1, reference numeral 10) (both the conventional type and the disk rotary type, If the rotation from the piston to the bottom is the same type (FIG. 1 is used), the rotation of the camshaft (reference numeral 19 in FIG. 10) is 3000 times 1/2, and the intake and exhaust valves are opened and closed 3000 times. We explained that the limit from the rotation to 3250 rotations (conventional type), but the three-layer disk and the rotary valve type (Figs. 6 and 7) show that the fixed side and the rotating side are 16 in one disk. By dividing, the disk will perform 4 strokes 4 times in 1 rotation (1 stroke is 4 divisions from intake to exhaust, 4 for 16 (division), that is, 1/4 rotation of the disk, If you do it 4 times, it will be 1 turn. In conventional four-cycle, (1) intake (2) compression, crankshaft makes one revolution, (3) combustion, (4) exhaust, one revolution, and four strokes, crankshaft makes two revolutions, while opening and closing the valve The car shaft rotates once, that is, the camshaft is one half of the crankshaft (this is the most important point, so it will be duplicated). (In this case, the disc rotation type valve will perform 4 strokes 4 times per revolution, that is, the crankshaft is 1 in terms of the number of revolutions.) Since there are 2 rotations in the stroke, 8 rotations (2 × 4 = 8) in the 4th stroke. During that time, the rotary valve rotates once, that is, 1/8 rotation of the crankshaft rotation speed is the rotation of the rotary valve. In other words, if the crankshaft is rotated 6000, the rotary valve is 1/8 750. If it is 10000, it is 1250, 1/8. There is no limit on rotation because it is a method.Comparing with the conventional type, the rotation type is 750 rotations compared to the conventional type, and this is an extra number, and further rotation is unlimited. Further, by dividing into 16 parts, the rotary valve can be rotated slowly and there are no restrictions, so intake and exhaust can be performed more smoothly and accurately without waste. This is the small size and light weight, which is the biggest advantage of this 4-cycle 3-layer disk valve rotary 8-valve engine. I was able to resolve.

Structure and function

In order to decelerate the rotational speed of the rotary valve to one-eighth of the crankshaft (FIGS. 1, B and 2), for example, (reference numeral 14a), from a small gear (10 teeth) timing gear ( Reference numeral 14b) A 10-gear gear is mounted on the same shaft (reference numeral 16) as the 20-gear gear, which can be reduced to a half rotation by turning a large gear (20-gear) timing gear. If you turn another 20-tooth gear on the other side, you can further reduce the speed by one-half rotation, so you can reduce it to a total of one-fourth rotation, and attach a 10-tooth gear on the same shaft as the 20-tooth gear, By rotating the 20-tooth gear attached to the rotary valve shaft (reference 11) with the timing belt (reference 15) toward the 10-tooth gear, the speed can be reduced by one-half revolution. You can decelerate an additional 20 gears If a 10-tooth gear valve rotation gear (symbol 12) is attached to the mounted rotary valve shaft at a position where a rotary valve (symbol 2) with a 20-tooth gear (symbol 13) in the center of the engine can be turned. (Refer to FIG. 2, reference numerals 12 and 13) Further, the motor can be decelerated by one half of a revolution. This is the planned number of rotations. This is just one example, and there are many other ways to slow down. However, it is better not to use large gears to reduce the speed at the same time, which will make the engine heavier. (B in FIG. 1) is originally attached to the center of the front (A in FIG. 1), but is separated as (A) and (B) for explanation.

When the three-layer, disc valve rotary engine is made to be a multi-cylinder having one or more cylinders, if the shaft for rotating the valve is extended to as many as four cylinders or six cylinders as shown in FIG. Can be multi-cylinder.

The invention's effect

As described above, the effects of this three-layer, disc-valve rotating, eight-valve engine were naturally limited because of the up-and-down movement of the valve in the conventional engine, and this was the greatest weakness. The three-layer disk-rotating valve opening and closing engine has made intake and exhaust more accurate than before. In addition, since the valve itself rotates, there is no limit to the rotational motion, and since there is no limit, the engine performance can be dramatically improved. In addition, since the rod-like valve and the camshaft etc. in the cylinder-head portion of the conventional engine are eliminated, the weight of the engine itself is reduced and the size can be reduced. It is a small, lightweight, durable engine with high output and high performance. You can get this effect just by turning the rod valve into a rotary valve. This is the greatest effect of this engine. Since the engine has become smaller and lighter, it is also ideal for hybrid cars (cars that run in combination with gasoline and electric motors) that are currently in practical use.
In addition, racers such as F1 have a decisive effect on how small a space can be equipped with a high-power, high-performance engine that is compact, lightweight and durable. Therefore, if this three-layer, disk valve rotary type, 8-valve engine can be installed, the effect will be great. Of course, it is optimal not only for automobiles but also for motorcycles, and its effect is tremendous.

A four-cycle, three-layer, disc-valve rotating, 8-valve engine front elevation view (A) is a front elevation view of the engine body. (B) is a disc valve rotation mechanism. And front view of timing belt (Originally, A and B are a pair, but they are separated for explanation) Side elevation of 4-cycle 3-layer, disc valve rotary, 8-valve engine 3 Enlarged view of the disk valve rotary fixed and rotary valves and intake and exhaust systems Enlarged view with intake and exhaust ports on the fixed side of the first and third layers of the three-layer system The rotary valve in the enlarged view (Fig. 5) of the rotary valve with the intake and exhaust ports on the rotary side of the second layer of the three-layer type is in the rotary valve space of (Fig. 4). Plan view with four inlets and four outlets on the fixed side of the first and third layers of the three-layer system Plan view of a rotary valve with four intake ports and four exhaust ports on the rotation side of the second layer of the three-layer system Multi-cylinder (1 cylinder or more) elevational view of a three-layer, disc valve rotating, 8-valve engine Plan view of multi-cylinder type Front sectional view of a conventional engine Plan sectional view of a conventional engine Frontal sectional view of a 4-cycle 3-layer, disc-valve rotary (8-valve) engine (Pentol-Fu type) (Figs. 1 and 2) Sectional view with intake port and exhaust port attached to the top of the first layer of the 3-layer system

Brief description of symbols

1: First layer, third layer, fixed type 2: Second layer, disk rotating 8-valve type, rotating valve (shaded portion) (the most important part of the present invention, this is all the reference)
3: Intake port (same on fixed side and rotating side)
4: Exhaust port (same on fixed side and rotating side)
5: Plug 6: Combustion chamber 7: Piston 8: Connecting rod 9: Counter-weight (or balance weight)
10: crankshaft 11: valve rotation shaft 12: valve rotation gear 13: rotary valve gear 14: large, small, timing gear (a) small (b) large 15: timing belt 16: timing gear shaft 17: engine block (Or cylinder block)
18: Oil pan 19: Conventional camshaft (for right intake and left exhaust)
20: Conventional cam (for right intake and left exhaust)
21: Conventional intake valve 22: Conventional intake port 23: Conventional exhaust valve 24: Conventional exhaust port 25: Conventional combustion chamber 26: Conventional piston 27: Intake port 28: Exhaust Port

Claims (3)

  The intake and exhaust of the upper part of the cylinder of the engine body is made into a three-layer disk rotation type (FIGS. 1, 3, 4, 5, reference numerals 1, 2), and the first and lower third layers of the three layers ( 3, 4, 5, 1) is an engine block (FIG. 1, 2, 3, 17) and one fixed type, and only the second middle layer is a rotary type (FIG. 3, 4, 5, 2). ), 4 intake ports and 4 exhaust ports are added to it and rotated as a total of 8 valves (FIG. 7). The fixed type of the first layer and the third layer is also provided with four intake ports and four exhaust ports, for a total of eight valves (FIG. 6). By rotating the second-layer valve, when the first and third-layer fixed inlets and the second-layer rotary inlet meet while rotating, the inlet opens and burns the mixed gas. Inhale into the room and inhale. Also, when exhausting, when the stationary and rotating exhaust ports meet while rotating, the exhaust gas after combustion is discharged out of the exhaust port. Disc valve rotary type, intake and exhaust 8-valve engine, characterized by smooth and accurate intake and exhaust by rotating the valve.   The features of the three-layer, disc-valve rotary, and eight-valve engine are fixed types for attaching and fixing the intake port and the exhaust port to the intake port and the exhaust port, respectively, on the upper part of the first layer (FIG. 13). 27, 28) In the third layer, there is a combustion chamber (Figs. 1, 3 and 6), so that the impact that occurs when the mixed gas is burned (exploded) is not directly applied to the rotary valve. (This is for protection of the rotary valve) (FIGS. 1 and 3) Since it is provided, it is a fixed type and a three-layer type so that the second-layer rotary valve can rotate smoothly without receiving any impact. Since this engine is a four-cycle engine (four-stroke engine), if eight valves are used, four strokes are performed four times during one rotation of the valve. Therefore, the crankshaft is rotated eight times during one rotation of the valve. To do. In other words, the valve needs only one-eighth rotation of the crankshaft. This means that if the valve rotates fairly slowly, intake and exhaust can be performed more accurately and without waste. Also, since the valve rotates indefinitely by rotation, this is quite advantageous (see the prior art).

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