KR100282157B1 - Double Head Internal Combustion Engine - Google Patents

Abstract

According to the present invention, the upper and lower cylinder heads are provided with upper and lower cylinder heads having a spark plug on the intake hole side and an intake hole, an intake valve, an exhaust hole and an exhaust valve on the upper and lower sides of the cylinder block in which the piston is operated up and down. The present invention relates to a double head internal combustion engine which is capable of operating up and down by alternating force generated by the head. The first head part and the second head part are provided so that the piston can be operated on the upper and lower sides of the cylinder block in which the piston is operated up and down. As the first head portion and the second head portion alternately generate suction, compression, expansion, and exhaust strokes, and generate force alternately, the first head portion and the second head portion cooperate to act as if the piston is pushed and pulled, thus obtaining more power. As a result, it is possible to provide an engine that can reduce operating costs by reducing fuel consumption.

Description

Double Head Internal Combustion Engine

The present invention relates to a double head internal combustion engine provided with a head for operating a piston on the upper and lower sides of a cylinder block in which the piston is operated up and down.

In more detail, the upper and lower cylinder heads having spark plugs are provided on the intake and intake valves and the exhaust and exhaust valves on the upper and lower sides of the cylinder block in which the piston is operated up and down. The present invention relates to a double head internal combustion engine that is capable of being operated up and down by alternating forces generated in the upper and lower cylinder heads.

According to the present invention, cylinder heads are provided on the upper and lower sides of the cylinder block, respectively, so that the upper and lower cylinder heads can operate the piston up and down while performing the suction, compression, explosion, and exhaust strokes individually. Is to provide a double-head internal combustion engine that can operate more flexibly while operating in opposition to each other.

In general, a widely used internal combustion engine, especially a conventional gasoline internal combustion engine, has a piston connected to a crankshaft by a connecting rod inside a cylinder block, and a cylinder head is mounted on an upper side of the cylinder block. An intake hole, an intake valve, an exhaust hole, and an exhaust valve are provided, but the spark plug is coupled to the intake hole side.

In the conventional gasoline internal combustion engine having such a structure, when a mixture of air and gasoline is sucked in a cylinder, compressed by a piston, ignited, and burned, a gas of high temperature and high pressure is generated, and the vertical reciprocating motion of the piston in the cylinder is connected to the loading and cranking. The rotational movement is changed by the side.

That is, when the piston descends from the top dead center to the bottom dead center, the intake valve is opened while the exhaust valve is closed, and an intake stroke in which a mixture of air and gasoline is sucked into the cylinder through the intake hole, and the piston As soon as the bottom dead center is reached, the stroke is raised and the intake valve is closed, and the compression stroke is compressed by the piston which the mixed gas is raised with the intake / exhaust valve completely closed, and the spark plug at the end of the compression stroke. When the mixed gas is ignited, it burns rapidly and increases the pressure in the cylinder to push down on the piston, which is then transmitted to the crankshaft through the connecting rod to generate the rotational force (expantion stroke). power stroke) and the exhaust valve opens and the piston rises to exhaust the gas produced by the combustion of the mixed gas. Exhaust strokes will be repeated to release.

However, in the conventional gasoline internal combustion engine constructed and operated as described above, the following problems are pointed out as disadvantages.

Since the device (cylinder head) for operating the piston is mounted only on the upper side of the cylinder block, there is a problem that the force for operating the piston is weakened and the power for rotating the crankshaft is weakened.

Therefore, in order to obtain a large power, there was a closed end to manufacture an internal combustion engine provided with a cylinder head in the cylinder block as described above, and the engine manufactured as described above has a problem that not only becomes bulky but also requires a large production cost.

In addition, the engine produced in this way has an explosive stroke only at the upper side of the piston, so that the force at the time of explosion and exhaust stroke and the force at the suction and compression stroke are different from each other when the piston performs two strokes, so that the crankshaft rotates uniformly and stably. There was a problem that can not be let.

The present invention is to provide a double head type internal combustion engine to solve the above problems and closed ends.

The present invention provides a double head type internal combustion engine equipped with a cylinder head provided with a suction hole, a suction valve, an exhaust hole, an exhaust valve, and a spark plug on the upper and lower sides of a piston block in which the piston is operated vertically. have.

Another object of the present invention is to provide a double head type internal combustion engine, wherein cylinder heads mounted on the upper and lower sides of the piston block can operate the pistons in cooperation with each other by performing suction-compression-explosion-exhaust strokes. It is.

Another object of the present invention is to operate the piston in the upper and lower sides to operate more organically and smoothly to obtain a strong force and to reduce the volume and weight to reduce the weight, spring-loaded intake valve and exhaust valve It is to provide a double head type internal combustion engine that can further reduce the volume by improving the existing structure that is to be operated up and down by the cam shaft to the rotating cam shaft valve rod type.

Another object of the present invention is to provide a double head type internal combustion engine to be installed in a vertical or horizontal type.

The above and other objects of the present invention, the piston 11 which is connected to the crankshaft 67 by the connecting rod 60 is operated up and down inside the cylinder block 10 and the upper side of the upper side of the cylinder block 10. The cylinder head 20 is mounted, but the upper cylinder head 20 has an intake valve 26 and an exhaust valve 27 shot by respective springs 29 for rotation of the intake / exhaust cam shafts 31 and 32. In order to open and close the intake hole 24 or the exhaust hole 25 alternately, and having a spark plug 33, the upper and lower sides of the cylinder block 10 is opened and the piston 11 is inside. ) To insert the piston ring 12 of the piston 11 so that the first combustion chamber 10-1 and the second combustion chamber 10-2 are formed in the upper and lower sides, and the upper and lower surfaces of the piston 11 The cylinder portion 2 formed by integrally forming the skirt 13 and the piston lower skirt 14, and the cylinder A first head portion 3 and a second head portion 4 are provided at both sides of the second side, and the first and second head portions 3 and 4 have a first head hole at both sides of the cylinder block 10. The first cylinder head 20 and the second cylinder head 40 through which the 21 and second head holes 41 are drilled are mounted, and the upper and lower skirts 13 and 14 are mounted on the upper and lower head holes 21. An intake valve 46 and an exhaust valve 47, which are inserted into the first cylinder head 20 and the second cylinder head 40, and are ejected with a spring 49, are formed on the intake / exhaust shaft 51. (2) to allow the intake hole 24 and the exhaust hole 25 to be opened and closed alternately, and to install the spark plugs 33 and 53, and to connect the lower rod 14 to the connecting rod ( 60 is achieved by the double head type internal combustion engine 1 characterized by the mandrel of the piston pin 65.

Since the present invention is as described above, the crankshaft 67 connected to the connecting rod 60 by operating the piston 11 up and down while the first head portion 3 and the second head portion 4 are organically operated. Rotated. That is, when the intake cam shafts 31 and 51 and the exhaust cam shafts 32 and 52 mounted on the first head 20 and the second head 40 are rotated, they are shot with springs 29 and 49. The intake valves 26 and 46 and the exhaust valves 27 and 47 are operated to open and close the intake holes 24 and 44 and the exhaust holes 25 and 45, and the intake valves 26 and 46. When the gas is open, the mixed gas flows into the first or second combustion chambers 10-1 and 10-2 and the intake valves 26 and 46 and the exhaust valves 27 and 47 are closed. After being compressed, it is exploded by the spark of the spark plugs 33 and 53, and the exhaust gas is discharged when the exhaust valves 27 and 47 are opened.

1 is a cross-sectional view showing the structure of an embodiment of a double head internal combustion engine according to the present invention.

2 is an enlarged cross-sectional view showing the structure of a piston used in the double head internal combustion engine shown in FIG.

3 (a) to 3 (d) are explanatory views of the operation relationship of the double head internal combustion engine shown in FIG.

Figure 4 is a cross-sectional view showing the structure of another embodiment of a double head internal combustion engine according to the present invention.

Figure 5 (a) is a perspective view showing the structure of the cam shaft valve rod and the oil roller in the double-head internal combustion engine of FIG.

Figure 5 (b) is a perspective view showing the structure of the oil ring used in the double-head internal combustion engine shown in Figure 4.

6 (a) to 6 (d) are explanatory views of the operation relationship of the double head internal combustion engine in FIG.

7 is a cross-sectional view showing another embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

1,1-1: Double head internal combustion engine 2: Cylinder part

3: upper head portion 4: lower head portion

10: cylinder block 10-1: upper combustion chamber

10-2: lower combustion chamber 11: piston

12: piston ring portion 13: piston upper skirt

14: Piston lower skirt 15: Oil ring

16: compression ring 20,110: first cylinder head

21,101: first head hole 22,42: intake valve chamber

23,43: exhaust valve chamber 24,44: intake hole

25,45 Exhaust hole 26,46 Intake valve

27,47: Exhaust valve 28,48: Valve spacing regulator

29,49: spring 30,50: oil seal

31,51: Intake camshaft 32,52: Exhaust camshaft

33: spark plug 34,54: oil ring (shrink type)

35,55: Piston ring (shrinkable) 40,130: 2nd cylinder head

41,131: second head hole 60: connecting rod

61: big end 62: small end

63: connecting rod bearing cap 70, 71: head gasket

102, 103, 112, 132, 142: camshaft valve rod chamber 104: intake hole

105: exhaust hole 108,138: oil ring (shrink type)

106,107: Sealing ring 109,139: Piston ring (shrink type)

110: first head cap 101,111: first head hole

113: oil roller 114: U type oil ring

115: spring 116: discharge hole

117: oil circulation hole 118: spark plug

120: camshaft intake valve ball 120-1: camshaft exhaust valve rod

121: distribution hole 122: closed outer peripheral surface

123: intake hole 123-1: exhaust hole

140: second head cap 131, 141: second head hole

The above and other objects and features of the present invention will be more clearly understood by the following detailed description based on the accompanying drawings.

1 to 8 are exemplary views showing a specific embodiment of a double head internal combustion engine according to the present invention.

FIG. 1 is a cross-sectional view of a double head internal combustion engine 1 according to the present invention, and FIG. 2 is a cross-sectional view taken from the piston in the embodiment of FIG. 1, and FIGS. 3 (a) to 3 (d) are shown in FIG. Fig. 1 is an explanatory diagram of the operation relationship of the embodiment.

4 is an exemplary cross-sectional view showing another embodiment of the double head internal combustion engine 1-1 according to the present invention. FIGS. 5 (a) and 5 (b) are camshaft valve rods and oil in the embodiment of FIG. Fig. 6 is a perspective view showing the structure of the ring, and Figs. 6 (a) to 6 (d) are explanatory diagrams of the operation relationship of the fourth embodiment.

7 is an exemplary view showing another embodiment of the present invention.

The double head internal combustion engine (1) (1-1) according to the present invention has a first head portion (3) and a second head portion on both sides of the cylinder portion (2) as shown in Figs. It is a well-known feature to attach (4).

The double head internal combustion engine 1 of the embodiment shown in FIG. 1 is constituted as follows.

In constructing the cylinder part 2, the piston ring part 12 of the piston 11 was inserted in the inside of the cylinder block 10 in which both upper and lower sides are open. As shown in FIGS. 1 and 2, the piston 11 integrally forms an upper piston 13 and a piston lower skirt 14 on the upper and lower surfaces of the piston ring 12, and the lower piston 14. ) Is longer than the upper piston skirt 13 and the shaft hole 19 was drilled to install the connecting rod 60 to the lower end of the piston lower skirt (14).

In particular, in forming the piston, the lower skirt (13) 14, the outer periphery of the aluminum alloy rod (17) by covering the reinforcing steel bar (18) was formed firmly, the shaft hole 19 is also formed by the reinforcing steel bar (18) The piston bearing 18-1 was formed.

In addition, the outer ring of the piston ring 12 has an annular shape of the compression ring groove 12-2 on the upper and lower sides of the oil ring groove 12-1, and the ordinary oil ring 15 and the compression ring 16. The outer ring edges of the oil ring 15 and the compression ring 16 to be brought into close contact with the inner circumferential surface of the combustion chamber, and the first ring chamber 10-1 and the second burn chamber 10- by the piston ring portion 12. 2) was divided into.

The first head portion 3 and the second head portion 4 were attached to both the upper and lower sides of the cylinder portion 2 thus obtained.

The first head portion 3 and the second head portion 4 have the same structure, and the first cylinder head 20 and the first cylinder head 20 through the head gaskets 70 and 71 on the upper and lower surfaces of the cylinder block 10. The second cylinder head 40 was mounted hermetically. The first head hole 21 and the second head hole 41 are drilled on the vertical center line of the first cylinder head 20 and the second cylinder head 40 so that the first head hole 21 has a piston upper skirt ( 13) and the piston bottom skirt 14 is inserted into the second head hole 41, the oil ring (in the inner circumference of the first head hole 21 and the inner circumference of the second head hole 41) 34) (54) and the piston rings (35) (55) by inserting the oil on the outer periphery of the upper and lower skirts (13) and (14), so that the first and second head holes (21) ( 41) to maintain the sealed state.

Intake valve chambers 22 and 42, exhaust valve chambers 23 and 43, and intake holes 24 and 44 and exhausts at both sides of the first head hole 21 and the second head hole 41, respectively. Balls 23 and 43 are formed, respectively, and intake holes 24 and 44 and exhaust holes 23 and 43 are formed in the intake valve chambers 22 and 42 and the exhaust valve chambers 23 and 43, respectively. The intake valves 26 and 46 and the exhaust valves 27 and 47 which are closed are respectively mounted, and the intake valves 26 and 46 and the exhaust valves 27 and 47 are oil seals 30 and 50, respectively. To each of the valves to keep them in a closed state, and after inserting the springs 29 and 49, the valve gap regulators 28 and 48 are fixed to the intake valves 26 and 46 and the exhaust valves 27 and 47. To be shot by springs 29 and 49, and lifts 31-1, 32-1, 51-1 and 52-1 protrude from the outside of each valve space adjuster 28 and 48. The formed intake camshafts 31, 51 and exhaust camshafts 32, 52 were mandrel mounted, respectively.

In addition, the spark cylinders 33 and 53 communicating with the first combustion chamber 10-1 and the second combustion chamber 10-2 are mounted on the first cylinder head 20 and the second cylinder head 20 to discharge sparks. To raise up.

On the other hand, in the shaft hole 19 formed in the piston lower skirt 14 of the piston 11, the small end 62 of the connecting rod 60 is mandrel mounted with the piston pin 65, and the bearing 66 is attached to the large end 61. ) To fix the connecting rod bearing cap 63 to the cam bolt 64 and the cam nut 64-1, but the crankshaft 67 was installed in the bearing 66.

4 is a cross-sectional view showing the structure of another embodiment of the double head internal combustion engine 1-1 according to the present invention, and is largely divided into a cylinder part 2, a first cylinder head 3, and a second cylinder head 4; It is rough.

In constructing the cylinder part 2, the piston ring part 12 of the piston 11 was inserted in the cylinder block 10 in which the upper and lower surfaces are open. The piston 11 is formed on the upper and lower surfaces of the piston ring 12, the piston upper skirt 13 and the piston lower skirt 14 integrally, but the piston lower skirt 14 is longer than the piston upper skirt 13 and the piston At the lower end of the lower skirt 14, the small end 62 of the connecting rod 60 was mandrel installed with the piston pin 65. In particular, the piston upper skirt 13 and the piston lower skirt 14 were mounted on the piston ring 12. In forming a), the reinforcing steel bar 18 was formed on the outer circumference of the aluminum rod 17 to form a solid.

The outer circumferential surface of the oil ring 15 and the compression ring 16 is closely coupled to the inner circumferential surface of the cylinder block 10 by coupling the compression ring 16 to the upper and lower sides of the oil ring 15 on the outer circumference of the piston ring part 12. The first combustion chamber 10-1 and the second combustion chamber 10-2 were formed at upper and lower sides of the piston ring part 12.

The first head portion 3 and the second head portion 4, which have substantially the same structure and become symmetrical, are mounted on the upper and lower sides of the cylinder portion 2 thus obtained. The first head part 3 and the second head part 4 fix the first cylinder head 100 and the second cylinder head 130 to the upper and lower sides of the cylinder block 10, respectively, and the first head cam to the outside. Cover 110 and the second head cam 140 to be fixed.

The first head hole 101, 111 and the second head hole in the center line of the first cylinder head 100, the first head cap 110 and the second cylinder head 130 and the second head cap 140 131 and 141, respectively, and the first head hole 101, 111 and the second head hole 131, 141, the piston upper skirt 13 and the piston lower skirt 14 of the piston 11; ), And oil rings 108 and 138 and piston rings 109 and 139 are inserted into the inner circumferential surfaces of the first head hole 101 and the second head hole 131 to be in a sealed state. .

Camshaft valve rod chambers 101, 103 and 112 of semi-circular shapes are formed on both sides of the first head holes 101 and 111 from the abutting surfaces of the first cylinder head 100 and the first head cap 110. Each of the camshaft valve rod chambers of semi-circular shape is formed on both sides of the second head holes 131 and 141 from the contact surfaces of the second cylinder head 130 and the second head cap 140, respectively. 132, 133 and 142 are formed to face each other so as to have a circular tube shape, and the cam shaft valve rod chambers 102, 132 and cam shaft valve rod chambers 103, 133 have a first combustion chamber 10-. 1) and the intake holes 104, 134 and the exhaust holes 105, 135 were drilled to communicate with the second combustion chamber 10-2, respectively, and the spark plug 118 on the intake holes 105, 134 side. Was fitted.

The cam shaft valve chambers 102, 103, 132 and 142, which are outer peripheries of the suction holes 104 and 134 and the exhaust holes 105 and 135, are shown in FIG. As described above, the oil ring 107 which is elasticized by the leaf spring 107-1 is mounted to maintain the sealed state with the outer circumferential surface of the camshaft valving rod 120 which will be described later.

Camshaft valve rods 120 were inserted into the camshaft valve rod chambers 102, 112, 103, 112, 132, 142, and 133, 142, respectively.

As shown in FIG. 5 (a), the camshaft valve rod 120 repeatedly forms the shaft rod portion 122-1 and the closed circumferential surface 122 on the outer circumferential surface thereof so that the shaft rod portion 122-1 can be formed by any means. Install the mandrel so as to be rotatable and drill the intake hole 123 or the exhaust hole 123-1 at a predetermined angle on each closed circumferential surface 122, respectively, for the intake hole 104, 134 or exhaust hole 105. (135) to open and close, one side of the distribution hole 12 is sealed by a closed cap (120-1) and the other side of the distribution hole (120-3) is drilled and the oil roller connecting gear (120-) 4) equipped with the rotary gear 120-2.

The rotary gear 120-2 may be directly fixed to the outer circumferential side end of the camshaft valve rod 120, the supply hole 120-3 is to supply the mixed gas or to discharge the combustion gas.

In addition, the first cylinder head 100 and the second head cap 140 was provided with an oil circulation device to apply oil to the cam side valve rod (120).

The oil roller 113 is inserted into a mandrel, and at one end, the oil roller 113-1 engaged with the oil roller connecting gear 120-4 is fixed, and the outer circumferential surface thereof is the outer circumferential surface of the camshaft valve rod 120. The main surface 122 was contacted, and the oil roller 113 to supply oil through the oil circulation hole 117 and to be discharged through the oil discharge hole 116, but the oil discharge hole 116 and The U-type oil ring 116 is provided with a U-shaped oil ring 116 shot between the oil rollers 113 and the oil roller 113 collects and discharges the oil coated on the outer circumference of the oil roller 113. To make it possible.

FIG. 7 shows a cylinder block having a conventional piston 11-1 with a first cylinder head 100 and a first head cap 110 in the double head internal combustion engine 1-1 illustrated in FIG. 10 is an exemplary view showing a state in which the first cylinder head 100 and the first head cap 110 are drilled without first hole heads 101 and 111 in the center of the first head cap 110. The spark plug 118 is mounted on the center line of the 100.

The operation relationship will be described below.

First, the operation relationship of the double head internal combustion engine 1 illustrated in FIG. 1 will be described.

The double head internal combustion engine 1 illustrated in FIG. 1 is operated according to the process as shown in FIGS. 3 (a) to 3 (d), wherein the piston 11 of the cylinder portion 2 is When reciprocating between the top dead center (TDC) and the bottom dead center (BDC), the first head part 3 and the second head part 4 are intake stroke, compression stroke. (compression stroke), expansion stroke (power stroke, expantion stroke), exhaust stroke (exhaust stroke) is carried out in opposing strokes.

3 (a) shows a state in which the first head part 3 performs an intake stroke and a second head part 4 performs an exhaust stroke.

When the intake camshaft 31 rotates in the first head part 3, the lift 31-1 pushes the valve interval regulator 28, and the valve interval regulator 28 moves downward while compressing the spring 29. When the intake valve 26 is also downward, the intake hole 24 is opened. The exhaust cam shaft 32 has the lift 32-1 rotating upward, so the exhaust valve 27 is the exhaust hole 25. It will remain closed.

When the intake valve 26 opens the intake hole 24, a gas mixture of gasoline and air flows into the first combustion chamber 10-1, where the connecting rod 60 is in a downward vertical state and the piston 11 is opened. When the piston 1 is lowered and the piston 1 is lowered, the piston ring 12 is also lowered and the space (volume) of the first combustion chamber 10-1 is increased, so that the mixed gas is easily sucked.

In this way, when the first head portion 3 is operated, the second head portion 4 is operated as follows. When the intake cam shaft 51 and the exhaust cam shaft 52 are rotated, the intake cam shaft 64 is in a state in which the circumferential surface is in contact with the valve spacing regulator 48, so that the intake valve 46 is moved to the spring 49. Since the air inlet hole 44 is kept closed, the exhaust cam shaft 52 maintains the state of the shot in a state of being intact, while the lift 52-1 is in contact with the valve space regulator 48 while the valve space regulator ( Since the valve spacing regulator 48 is advanced by winning the spring 49 and the exhaust valve 46 moves forward together with the valve spacing regulator 48 to open the exhaust hole 45, the second combustion chamber ( The gas which has been burned at 10-2) is discharged. At this time, the gas is discharged more quickly because the piston ring 12 which is upwardly moved downward.

After the intake stroke of the first head portion 3 and the exhaust stroke of the second head portion 4 are completed as shown in FIG. 3 (a), the first head portion as shown in FIG. 3 (b). In (3), compression stroke is performed, and in the second head portion 4, suction stroke is performed.

As shown in FIG. 3 (b), as the intake camshaft 31 of the first head portion 3 rotates, the lift 31-1, the portion rises, and the circumferential surface of the valve interval regulator 28. Since the valve interval regulator 28 is raised by the elastic force of the spring 29, the intake valve 26 is also raised while blocking the intake hole 24 together with the valve interval regulator 28, so that the mixed gas is Inflow is stopped. At this time, since the circumferential surface of the exhaust cam shaft 32 that is rotated is continuously contacted with the valve interval adjuster 28 on the exhaust valve 27 side, the exhaust valve 27 continues to close the exhaust hole 25. Will be maintained.

As such, while the first head part 3 is operated, the crankshaft 67 continuously rotates to raise the connecting rod 60, and thus the piston ring part 12 of the piston 11 also rises. When 12 is raised, the mixed gas flowing into the first combustion chamber 10-1 is in a state in which the intake hole 24 and the exhaust hole 25 are closed by the intake valve 26 and the exhaust valve 27. As the piston ring 12 is raised, the compression stroke state is maintained.

Thus, while the cylinder part 2 and the 1st head part 3 are operated in FIG. 3 (b), the 2nd head part 4 is operated as follows. As the intake camshaft 51 rotates, the lift 51-1 portion pushes the valve interval regulator 48 on the intake valve 46 side, so that the intake valve 46 opens the intake hole 44 and mixes. The gas flows into the second combustion chamber 10-2 through the intake hole 44, while the exhaust camshaft 52 has a lift gap 51-1 at the exhaust valve 47 side of the valve gap control 48. Since the circumferential surface is in contact with each other, the exhaust valve 47 is retracted by the elastic force of the spring 49 together with the valve spacing regulator 48 to close the exhaust hole 45.

In addition, since the piston ring 12 rises together with the connecting rod 60 that rises, the mixed gas introduced through the intake hole 44 is filled in the second combustion chamber 10-2 having a larger volume.

In this way, after the compression stroke of the first head portion 3 and the suction stroke of the second head portion 4 are completed as shown in FIG. 3 (b), the first stroke as shown in FIG. The head portion 3 is subjected to an explosive stroke and the second head portion 4 is subjected to a compression stroke.

As shown in FIG. 3 (c), in the first head part 3, spark is generated through the spark plug 33, and the compressed compressed gas is ignited by the spark.

When the mixed gas is ignited, the internal combustion of the first combustion chamber 10-1 is increased while being rapidly burned, and the piston ring 12 is pushed down by the elevated internal pressure, and the piston 11 together with the piston ring 12 When the lowering of the crank shaft 67 is rotated while the connecting rod 60 is also lowered.

As such, when the piston ring portion 12 moves downward by the expansion stroke of the first head portion 3, the second head portion 4 has the intake hole 44 and the exhaust hole 45 having the intake valve 46 and the exhaust valve. Closed by 47, the mixed gas flowing into the second combustion chamber 10-2 is compressed.

After the expansion stroke of the first head portion 3 and the compression stroke of the second head portion 4 are completed, as shown in FIG. 3 (c), the first head portion as shown in FIG. 3 (d). In (3), the exhaust stroke is performed, and the second head portion 3 is subjected to the explosion stroke.

That is, the piston 11 which is downward by the expansion stroke of the first head part 3 is raised by the rotation of the crank shaft 67 and the piston 11 together with the connecting rod 60. At this time, since the circumferential surface of the first head portion 3 is in contact with the valve interval regulator 28 of the intake valve 26 even though the intake cam shaft 1 rotates, the intake valve 26 is closed of the intake hole 24. The state is maintained as it is, the exhaust camshaft 31 is rotated so that the lift 31-1 portion pushes the valve interval regulator 28 of the exhaust valve 27, the exhaust valve 27 is the valve interval regulator 28 ) And advances the spring 29 to open the exhaust hole 25 and the burned gas is quickly discharged to the outside through the exhaust hole 25.

On the other hand, when the piston head 12 is raised, the second head part 4 ignites the mixed gas compressed in the second combustion chamber 10-2 as sparks are generated in the spark plug 53, so that the mixed gas is As the ignition rapidly burns and expands, the piston ring 12 rises quickly.

Thereafter, as shown in FIG. 3 (a), the first head portion 3 enters the suction stroke, and the second head portion 4 enters the discharge stroke, repeatedly performing the above-described stroke. The crankshaft 67 is rotated while performing.

In addition, the double head internal combustion engine 1-1 illustrated in FIG. 4 operates as follows.

6 (a) to 6 (d) are explanatory diagrams showing the operation of the double head internal combustion engine 1-1 illustrated in FIG. 4, wherein the piston 11 has a top dead center and a bottom dead center. When the camshaft valve rod 120 mounted on the first head part 3 and the second head part 4 rotates (rotates) when reciprocating therebetween, the mixed gas is introduced or the combustion gas is discharged. It is a well known feature.

6 (a) is a state in which the first head portion 3 is in the intake stroke, and the second head portion 4 is in the exhaust stroke.

In the first head portion 3, the camshaft intake valve rod 120 and the camshaft exhaust valve rod 120-1 are rotated, and the oil roller 113 is also rotated together. When 2) rotates, the cam side intake valve rod 120 or the cam shaft exhaust valve rod 120-1 rotates and the oil roller gear meshed with the oil roller connecting gear 12-4 of the timing gear 120-2. While rotating the 113-1, the oil roller 113 is to be rotated.

The camshaft intake valve rod 120 has its intake hole 123 coinciding with the intake hole 104 formed in the first cylinder head 100 and thus flows into the camshaft intake valve rod 120 through the flow hole 121. The mixed gas is introduced into the first combustion chamber 10-1 through the intake holes 123 and 104, and the cam shaft exhaust valve rod 120 has the closed outer circumferential surface 122 closing the exhaust hole 105. Will be maintained. In this state, as the connecting rod 60 is in a downward vertical state, the piston 11 is lowered. When the piston 11 is lowered, the piston ring 12 is also lowered, thereby reducing the volume of the first combustion chamber 10-1. Since the space is enlarged, the mixed gas is easily sucked in.

In this way, when the first head portion 3 is operated, the second head portion 4 is operated as follows.

The camshaft intake valve rod 120 rotated by the second head portion 4 maintains its outer circumferential surface 122 in a state in which the intake hole 134 is closed, and the camshaft exhaust valve ball 120-1 rotates separately. The exhaust hole 123-1 coincides with the exhaust hole 135 of the second cylinder head 130, so that the combustion gas in the second combustion chamber 10-2 is exhaust hole 135, 123-1. After being introduced into the distribution hole 121 and discharged to the outside, the piston ring 12 which was upwardly moved downward is discharged more quickly.

After the intake stroke of the first head portion 3 and the exhaust stroke of the second head portion 4 are completed, as shown in FIG. 6 (a), the first head portion as shown in FIG. 6 (b). Compression stroke 3 is carried out, and the second head 4 is suction stroke.

As shown in FIG. 6 (b), the outer circumferential surface 122 closes the intake hole 104 by the cam shaft intake valve rod 120 which is continuously rotated. The exhaust valve rod 120 passes through a state in which the outer circumferential surface 122 thereof closes the exhaust hole 105.

As such, while the first head part 3 is operated, the crankshaft 67 continuously rotates to raise the connecting rod 60, and thus the piston ring part 12 of the piston 11 also rises, and the piston ring part. When 12 rises, the mixed gas flowing into the first combustion chamber 10-1 maintains the compressed state because the intake hole 104 and the exhaust hole 105 are closed.

Thus, while the cylinder part 2 and the 1st head part 3 are operated in FIG. 6 (b), the 2nd head part 4 is operated as follows. In the state in which the camshaft intake valve rod 120 and the camshaft exhaust valve rod 120-1 are continuously rotating, the intake hole 123 of the camshaft intake valve rod 120 has a second head 4. When the intake hole 134 of the cylinder head 130 is in communication with each other and the intake hole 123 and the intake hole 134 communicate with each other, the mixed gas introduced through the distribution hole 121 is the second combustion chamber 102. In the air, the cam shaft exhaust valve rod 120-1 has the outer circumferential surface 122 continuously maintaining the closed state of the exhaust hole 135.

On the other hand, the piston ring 12 is raised with the connecting rod 60 is raised to enlarge the volume of the second combustion chamber (10-2), so that the mixed gas flowing through the intake hole (134) is made of a larger volume The intake chamber 10 is more easily and quickly filled in the combustion chamber 10-2.

In this manner, after the compression stroke of the first head portion 2 and the suction stroke of the second head portion 4 are completed, as shown in FIG. 6 (b), the first stroke as shown in FIG. The head part 3 and the second head part 4 are subjected to an explosion stroke and a compression stroke.

As shown in FIG. 6 (c), in the first head portion 3, sparks are generated through the spark plug 118 to ignite the compressed mixed gas, and the ignited mixed gas is rapidly burned while being first burned. The internal pressure of the combustion chamber 10-1 is increased, and the piston ring portion 12 is lowered by the rising internal pressure, and the connecting rod 60 is also lowered by the downward movement of the piston 11 and the crank shaft 67. Rotate

As such, when the piston ring 12 is to be moved by the expansion stroke of the first head 3, the second head 4 is the camshaft intake valve rod 120 in which the intake hole 134 and the exhaust hole 135 are rotated. ) And the mixed gas sucked into the second combustion chamber 10-2 are compressed by the outer peripheral surface 122 of the camshaft exhaust valve rod 120-1.

After the expansion stroke of the first head portion 3 and the compression stroke of the second head portion 4 are completed as shown in FIG. 6 (c), the first head portion as shown in FIG. 6 (d). In (3), the exhaust stroke is performed, and in the second head portion 4, the explosive stroke is performed.

That is, the piston 11 which is downward by the expansion stroke of the first head part 3 is raised by the rotation of the crank shaft 67 together with the connecting rod 60. At this time, the first head portion 3 is in a state in which the intake hole 104 is continuously closed to the outer circumferential surface 122 of the camshaft intake valve rod 120 that is rotated and the exhaust hole 105 is rotated camshaft intake valve rod ( Since it is in communication with the exhaust hole 123-1 of 120, the combustion gas in the first combustion chamber 10-1 is discharged to the outside through the distribution hole 121.

On the other hand, when the piston head 12 rises, the second head part 4 ignites the mixed gas compressed in the second combustion chamber 10-2 as the spark plug 53 is generated. The piston ring 12 is quickly raised because it is rapidly ignited and expanded while ignited.

Thereafter, as shown in FIG. 6 (a), the first head part 3 enters the suction stroke and the second head part 4 enters the discharge stroke.

In this way, the double head internal combustion engine 1-1 rotates the crankshaft 67 while repeatedly performing the above steps.

The embodiment of FIG. 7 is provided with the normal piston 11-1 in the cylinder block 10-1, and the double head internal combustion engine illustrated in FIG. 4 above the cylinder portion 2-1 ( The head part 3-1 which is almost the same as the first head part 3 of 1-1) is mounted, and the operation principle is the same as that of the first head part 3, so a more detailed description will be omitted. .

As described above, according to the double head internal combustion engine (1) (1-1) of the present invention, the piston (11) is made so that the piston (11) can be operated on the upper and lower sides of the cylinder block (10) which is operated up and down. The first head part 3 and the second head part 4 are alternately provided while the first head part 3 and the second head part 4 perform suction, compression, expansion, and exhaust strokes opposite to each other. And the piston 11 is operated in cooperation as if the piston 11 is pushed and pulled, and when the cam valve type double head internal combustion engine 1-1 is applied to an automobile, the head is stopped even if the timing belt is broken. Damage to the piston valve can be prevented, and the manifold can be designed laterally or rearward as needed.

Since the fuel consumption can be reduced, it is possible to provide an engine that can reduce operating costs.

The double head internal combustion engine (1) (1-1) according to the present invention can be formed in parallel to constitute a power means, that is, an engine, and the length of the power generating means is arranged in two rows. This can be as short as half the length of the power plant, thus providing a larger engine with less volume and volume.

Claims (3)

The piston 11 connected to the crankshaft 67 by the connecting rod 60 is operated up and down inside the cylinder block 10, and the upper cylinder head 20 is mounted on the upper side of the cylinder block 10. In the cylinder head 20, the intake valve 26 and the exhaust valve 27 shot by each spring 29 are rotated by the intake / exhaust camshaft 31, 32, and the intake hole 24 or the exhaust hole. Comprising (25) to open and close alternately and having a spark plug 33, the upper and lower sides of the cylinder block 10 is open type and the piston ring portion 12 of the piston 1 is inserted therein. The first combustion chamber 10-1 and the second combustion chamber 10-2 are formed up and down, and the upper and lower pistons 13 and piston lower skirts 14 are integrally formed on both upper and lower surfaces of the piston 11. The cylinder portion 2 formed thereon, and the first head portion 3 and the second head portion 4 are provided on both sides of the cylinder portion 2. The first and second head parts 3 and 4 have a first cylinder head 20 and a second hole in which the first head hole 21 and the second head hole 41 are drilled at both sides of the cylinder block 10. The cylinder head 40 is mounted so that the upper and lower skirts 13 and 14 are inserted into the upper and lower head holes 21 and 41, and the first cylinder head 20 and the second cylinder head 40 are inserted. ), The intake valve 46 and the exhaust valve 47 shot by the spring 49 alternately open and close the intake hole 24 and the exhaust hole 25 by rotation of the intake / exhaust shafts 51 and 52. Double head type internal combustion engine, characterized in that the spark plugs (33) (53) and the mounting rod 60 on the lower skirt 14 by mandrel with a piston pin (65). The method of claim 1, wherein the first head portion 3 and the second head portion 4, the first cylinder head 100 and the second cylinder head 130 is fixed to the upper and lower sides of the cylinder block 10, The first head cap 110 and the second head cap 140 are fixed to the outside of the first and second cylinder heads 100 and 130, but the first and second cylinder heads 100 and 130 and the first The first head hole 101 (111) and the second head hole 131 (141) are drilled on the center vertical line of the first and second head caps 110 and 140, respectively. Insert the piston upper skirt 13 of the piston 11 and the piston lower skirt 14 of the piston 11 is inserted into the second head hole (131, 141), the first head hole 101 (111) And abutting surfaces of the first cylinder head 100 and the first head cap 110 on both sides of the second head holes 131 and 141, and the sugar of the second cylinder head 131 and the second head cap 140. The semi-circular camshaft valve rod chambers 102, 103, 112, and 132, 133 and 142 are formed between the contact surfaces so as to form a circular shape, and the first cylinder head 100 and the second cylinder are formed. The air inlet hole 104 has the cam shaft valve rod chambers 102 and 103 and the cam shaft valve rod chambers 132 and 133 communicating with the first combustion chamber 10-1 and the second combustion chamber 10-2. 134 and exhaust holes 105 and 135, respectively, and the camshaft valve rod chambers 102, 112, 103, 112, 132, 142, 132, 142, The camshaft intake valve rod 120 or the camshaft exhaust valve rod 120-1 through which the intake hole 123 or the exhaust hole 123-1 is drilled can be inserted into and rotated, respectively. One side of the first cylinder head 100 (130) or the first head cam 110 (140) 140 is in contact with the cam shaft intake valve rod 120 or the cam shaft exhaust valve rod (120-1). The oil roller 113 is installed to supply oil through the oil circulation hole 117 and recover oil by the U-type oil ring 114 that is elasticized by the spring 115, but the recovered oil is discharged through the oil discharge hole 114. Double-head internal combustion engine, characterized in that to be discharged through. The inner circumferential surface of the camshaft valve rod chamber (102) (103) (132) (133) is inserted into an oil ring (107) which is shot with a leaf spring (107-1) and whose surface is a curved surface. Double head internal combustion engine.