KR200303198Y1 - shuttle linkage engine - Google Patents

Abstract

The present invention is a piston-linked reciprocating engine that completes one cycle by inducing four strokes with two cylinders, and includes two cylinders in parallel, and installs reciprocating pistons by sharing two cylinders in each cylinder, Piston shafts are connected to both end faces of these pistons, connecting rods are connected to the piston shafts, and suction and exhaust valves are provided on each cylinder side to perform suction, compression, explosion, and exhaust strokes.

Description

Shuttle linkage engine

The present invention relates to a reciprocating engine that converts a reciprocating motion of a piston into a rotational motion, and more particularly, to a piston-linked reciprocating engine that completes one cycle by inducing four strokes with two cylinders.

The internal combustion engine that converts thermal energy generated inside the engine into mechanical energy includes a four-stroke cycle engine.

The four-stroke cycle engine completes one cycle of four strokes (suction, compression, explosion, exhaust), that is, two revolutions of the crankshaft. 10 shows a schematic of a four stroke cycle engine. It has four cylinders (cylinders), one in each cylinder, and all four pistons. This four-cylinder engine requires space occupied by four cylinders and cylinder space for four pistons to operate. This not only increases the overall volume of the engine but also acts as a factor in increasing weight.

Therefore, an object of the present invention is to provide a reciprocating interlocking engine that enables low weight and small size by obtaining an effective power of the engine with only two cylinders and two pistons.

1 is a conceptual diagram of a reciprocating interlocking engine according to the present invention.

Figure 2 is an operating state of the engine according to the four strokes.

3 is a state in which the intake, exhaust valve is installed in the engine.

Figure 4 is an opening and closing state of the intake, exhaust valve according to the four strokes.

5 is an exemplary view showing the operation state at every stroke by tying all eight intake and exhaust valves into four sets.

6A to 6D are valve operating states in each stroke according to the valve opening and closing means.

Figures 7a, 7b, 7c, 7d is an illustration showing a guide means for operating only the corresponding valve.

8 is an exemplary view showing a piston ring and an oil supply passage of a piston.

9A and 9B are exemplary views showing an application example of an engine.

10 is a conceptual diagram of a four-stroke cycle engine.

<Explanation of symbols for the main parts of the drawings>

1-1,2-1,3-1,4-1: Intake valve

1-2,2-2,3-2,4-2: exhaust valve

21,22: cylinder

31,32: Piston

41,42: Piston Shaft

51,52: connecting rod

C1, C2, C3, C4: Cylinder

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a conceptual diagram of a reciprocating linked engine for understanding the concept of the present invention.

The engine of the present invention basically has two cylinders 21 and 22 as shown in FIG. 1, and each cylinder 21 and 22 has cylinder bores 21a and 22a. At this time, the pair of cylinders 21 and 22 are arranged in parallel to each other.

In FIG. 1, the upper cylinder 21 is bisected by the upper piston 31 to share the first cylinder C1 and the second cylinder C2, and the lower cylinder 22 is connected by the lower piston 32. It is bisected and shares the 3rd cylinder C3 and the 4th cylinder C4. Each cylinder C1, C2, C3, C4 is provided with an ignition plug of a conventional four-stroke cycle engine, and the ignition plug performs a function of igniting fuel during combustion at each stroke.

The pistons 31 and 32 are installed to be movable in the longitudinal direction of the cylinders 21 and 22 in FIG. 1, and piston shafts 41 and 42 are connected to both side surfaces of the pistons 31 and 32, respectively. Shafts 41 and 42 are connected to connecting rods 51 and 52 so as to interlock in different directions.

2 shows that the engine of the present invention repeats suction, compression, combustion, and exhaust during each stroke.

In the first stroke, the first cylinder C1-suction, the second cylinder C2-compression, the third cylinder C3-combustion, and the fourth cylinder C4 exhaust occur. Here, the arrow indicates the direction of travel. In two strokes, the first cylinder C1-compression, the second cylinder C2-combustion, the third cylinder C3-exhaust, and the fourth cylinder C4-inhalation occur respectively. In the three strokes, the first cylinder C1-combustion, the second cylinder C2-exhaust, the third cylinder C3-suction, the fourth cylinder C4-compression occur respectively. The four-stroke C1-exhaust, the second cylinder (C2)-suction, the third cylinder (C3)-compression, the fourth cylinder (C4)-combustion occurs respectively. In other words, the present invention is a four-stroke cycle is made sequentially.

As described above, the engine of the present invention having four strokes includes intake valves (1-1, 2-1, 3-1, 4-1) and four cylinders, respectively, in four cylinders to suck fuel and discharge exhaust gas. Exhaust valves 1-2, 2-2, 3-2, and 4-2.

The intake and exhaust valves operate as shown in FIG. 4 in the order of stroke.

As shown in FIG. 4, the first cylinder side intake valve 1-1 is opened for intake during one stroke, and at the same time, the fourth cylinder side exhaust valve 4-2 is opened for discharging combustion gas, and all remaining valves are closed. .

At the second stroke, both the intake valve 1-1 of the first cylinder C1 and the exhaust valve 4-2 of the fourth cylinder C4 are closed, and in conjunction with this, the third cylinder side exhaust valve 3-2 is closed. ) Is opened for exhaust gas discharge, and the fourth cylinder side intake valve 4-1 is opened for fuel intake. The remaining valves are all closed.

In the third stroke, the second cylinder side exhaust valve 3-2 through which the combustion gas is discharged and the fourth cylinder side intake valve 4-1 which has completed the suction are closed. At the same time, the second cylinder side exhaust valve 2-2 is opened for the release of the hot gas and the third cylinder side intake valve 3-1 is opened for the fuel intake. The remaining valves are all closed.

In the fourth stroke, the second cylinder side exhaust valve 2-2 which discharged the combustion gas is closed, and the intake third cylinder side intake valve 3-1 is closed. In conjunction with this, the first cylinder side exhaust valve 1-2 is opened for the discharge of combustion gas and the intake valve 2-1 of the second cylinder is opened for the intake air. All remaining valves are closed.

After the 4th stroke is completed, go back to 1st stroke and repeat the cycle.

As such, the intake valves 1-1, 2-1, 3-1, 4-1 and exhaust valves 1-2, 2-2, 3-2, 4-2 of each cylinder are opened in pairs. Because it repeats, opening and closing can be paired with each other. In this embodiment, as shown in Fig. 5, the two valves are composed of four valves.

That is, when the first cylinder intake valve (1-1) and the fourth cylinder side exhaust valve (4-2) are connected to form the first valve (1), when the first valve (1) is opened in one stroke The first cylinder side exhaust valve 1-2 and the second cylinder side intake valve 2-1 interlock together as the fourth valve 4 and are simultaneously closed.

Next, the fourth cylinder side intake valve 4-1 and the third cylinder side exhaust valve 3-2 are connected to form the second valve 2, and when the second valve 2 is opened in two strokes, One valve (1) interlocks and closes simultaneously.

Then, the second cylinder side exhaust valve (2-2) and the third cylinder side intake valve (3-1) is connected to form a third valve (3), when the third valve (3) opens in three strokes The second valve 2 interlocks and closes at the same time.

Then, the second cylinder intake valve (2-1) and the first cylinder side exhaust valve (1-2) is connected to form a fourth valve (4), when the fourth valve (4) is opened in four strokes The third valve 3 interlocks and closes at the same time.

Accordingly, the engine can cause each stroke to be sequentially performed by the action of opening and closing of the four first, second, third and fourth valves (1, 2, 3, 4) as shown in FIG.

6A to 6D show an operation state of each of the first, second, third and fourth valves 1, 2, 3, and 4, which are combined with each other by a pair of pressing means installed on the piston shafts 41 and 42. It is shown.

6A to 6D, the pressing means provided on the first cylinder side piston shaft 41 is called the first cylinder side push button P1, and the pressing means provided on the second cylinder side piston shaft 41 is the second cylinder side. The pressing means installed in the third cylinder-side piston shaft 42, called the push button P2, is called the third cylinder-side push button P3, and the pressing means provided in the fourth cylinder-side piston shaft 42 It is called a cylinder side push button P4.

Fig. 6A shows the valve operation at the start and end of one stroke, respectively. At the start of one stroke, the first valve 1 is opened to prepare fuel intake and exhaust gas exhaust. In this state, when combustion (explosion) occurs on the third cylinder C3 side, the lower piston 32 moves to the left side and at the same time, the upper piston 31 moves to the right side by the linking of the connecting rods 51 and 52. At the same time, the first cylinder side push button P1 mechanically opens the second valve 2.

Therefore, when one stroke is complete | finished, the 1st valve 1 is closed by the 1st cylinder push button P1, and the 2nd valve 2 is opened. As a result, the first cylinder C1 prepares for compression at intake, the second cylinder C2 prepares for combustion at compression, the third cylinder C3 prepares for exhaust at combustion, and the fourth cylinder C4. Prepares air intake from exhaust.

Next, as shown in FIG. 6B, the second valve 2 is open at the start of the two-stroke. When the combustion is completed in the second cylinder C2 in this state, the fourth cylinder push button P4 opens the third valve 3 and simultaneously closes the second valve 2. Therefore, at the end of the two-stroke, the first cylinder C1 is ready for combustion in compression, the second cylinder C2 is ready for exhaust in combustion, and the third cylinder C3 is ready for intake in exhaust, and the fourth Cylinder C4 is ready for compression at intake.

Then, as shown in Fig. 6C, the third valve 3 is open at the start of the three stroke. In this state, when combustion is completed in the first cylinder C1, the third cylinder-side push button P3 opens the fourth valve 4 and simultaneously closes the third valve 3. Therefore, at the end of the three-stroke, the first cylinder C1 prepares for exhaust from combustion, the second cylinder C2 prepares for intake for exhaust, and the third cylinder C3 prepares for compression for intake, and the fourth Cylinder C4 prepares for combustion in compression.

Then, as shown in Fig. 6D, the fourth valve 4 is open at the start of the four stroke. In this state, when combustion is completed in the fourth cylinder C4, the second cylinder side push button P2 opens the first valve 1 and closes the fourth valve 4 at the same time. Therefore, at the end of the four-stroke, the first cylinder C1 prepares for intake from the exhaust, the second cylinder C2 prepares for compression from the intake, and the third cylinder C3 prepares for combustion from the compression. Cylinder C4 prepares the exhaust from combustion.

As such, the present invention can perform the respective strokes by opening and closing the first, second, third, and fourth valves (1, 2, 3, 4) by installing push button means on each cylinder side piston shaft (41, 42). .

On the other hand, according to the present invention, the first and third strokes, the two and four stroke piston positions and the cylinder pushbuttons are positioned at the same position so that the same valve can be opened or closed in different strokes. Therefore, the present embodiment has a guide means so that only the corresponding push button can be pressed.

7A to 7D show the valve operation and the movement of the guide during each stroke according to the guide means.

Here, the guide means, in each stroke, the first cylinder side push button P1 opens only the second valve 2, the second cylinder side push button P2 opens only the third valve 3, and the third cylinder side presses. The button P3 functions to open only the fourth valve 4.

As shown in Fig. 7A, during the first stroke, the first cylinder C1-suction, the second cylinder C2-compression, the third cylinder C3-combustion, the fourth cylinder C4-exhaust It's a step that takes place. At this time, the first valve 1 is opened to perform fuel intake and combustion exhaust.

As shown in (b) of FIG. 7A, when the third cylinder C3 completes combustion at the end of the first stroke, the first cylinder side push button P1 closes the first valve 1 and the second valve 2 is closed. ), The second guide G2 moves to the second cylinder side push button P2 side in conjunction with the opening of the second valve 2 to prepare for pressing the third valve 3.

As shown in Fig. 7B, during the two-stroke process, the first cylinder C1-compression, the second cylinder C2-combustion, the third cylinder C3-exhaust, the fourth cylinder C4-suction As a step that takes place, the second valve 2 is opened to proceed fuel intake and combustion exhaust.

At the end of the two stroke as shown in FIG. 7B, the second guide G2 is pressed by the second cylinder side push button P2 to open the third valve 3 and simultaneously close the second valve 2. . At this time, in conjunction with the third valve (3), the third guide (G3) is completed to move to the third cylinder side push button (P3) side.

7A shows a state where the third guide G3 is located at the third cylinder side push button P3 as a start of the three stroke. In the three-stroke process, open the third valve (3) and proceed to the first cylinder (C1)-combustion, the second cylinder (C2)-exhaust, the third cylinder (C3)-suction, the fourth cylinder (C4)- Compression takes place. At this time, the third valve 3 proceeds in the open state.

7C is a 3 stroke end state, in which the third cylinder side push button P3 presses the third guide G3 to close the third valve 3 and the fourth valve 4 is opened. In conjunction with this, the fourth guide G4 moves to the fourth cylinder side push button P4.

7A shows a state where the fourth guide G4 is located on the fourth cylinder side push button P4 side as a start of the four stroke. When the four stroke is in progress, the fourth valve 4 is opened and the first cylinder C1-exhaust, the second cylinder C2-suction, the third cylinder C3-compression, the fourth cylinder C4. )-Combustion occurs.

FIG. 7D shows the end of the four stroke, in which the fourth cylinder side push button P4 presses the fourth guide G4 to close the fourth valve 4 and opens the first valve 1. In conjunction with the first valve 1, the first guide G1 moves to the first cylinder side push button P1 to prepare for the start of the first stroke.

As described above, the guide means G1, G2, G3, and G4 open the second valve 2 only at the first cylinder side push button P1 in each stroke, and the second cylinder side push button P2 is the third valve ( 3) only the third cylinder side push button P3 opens only the fourth valve 4, and the fourth cylinder side push button P4 functions as a guide for opening only the first valve 1.

As such, the method of using the guide is not limited thereto.

On the other hand, in the present invention, the valve opened during the course of each stroke should remain open until the end of the stroke.

Thus, the present invention proceeds by opening the first valve (1) at the start of the first stroke, and closing the first valve (1) opened by the one-cylinder pressing means at the end of the first stroke and maintaining the open state by opening the second valve (2). At the same time, the guide moves and waits for the next stroke.

In this series of cycles, the intake, compression, explosion (combustion), and exhaust strokes occur sequentially, causing linear reciprocation of the piston shafts 41 and 42, and the connecting rods 51 and 52 repeat the rotation angle movement. .

In this case, the connecting rods 51 and 52 and the piston shafts 41 and 42 are hingedly connected, but the connecting rods 51 and 52 should be spaced apart by the angular movement of the connecting rods 51 and 52. To this end, in this embodiment, as shown in Fig. 1, the connecting pins 43 and 43 are coupled to the end portions of the piston shafts 41 and 42, and the connecting pins 43 and 43 are connected to the connecting rods 51 and 52, respectively. It is slidably coupled to the long holes 51a and 52a.

Meanwhile, the pistons 31 and 32 are provided with compression rings 101 and 101 and oil rings 102 and 102, as shown in FIG. 8, and the compression rings 101 and 101 and oil rings 101 and 102 are two cylinders, respectively. Since they are shared with each other, they are installed to face each other, and the compression rings 103 and the oil rings 104 are also provided in the cylinders 21 and 22 in contact with the piston shafts 41 and 42.

In addition, oil is supplied to the pistons 31 and 32 through oil supply passages 105 connected to the piston shafts 41 and 42 and the pistons 31 and 32, respectively. The oil supplied is made possible by an oil pump (not shown) using the output of the engine.

In the reciprocating engine of the present invention configured as described above, as shown in FIG. 9A, both ends of the piston shafts 41 and 42 may be connected to the crank shafts 201 and 202 to obtain rotational force.

In addition, as shown in Figure 9 it may be used as a flying means by connecting the wings (201, 202) to the connecting rod (51, 52) in which the angular motion occurs.

The intake apparatus and the combustion stroke ignition apparatus not described above apply well-known techniques.

According to the reciprocating engine of the present invention as described above, by reducing the conventional four-cylinder engine to two cylinders to provide an internal combustion engine that can reduce the volume of the engine and significantly reduce the weight under the same output.

Therefore, the present invention can be utilized not only for the general driving vehicle but also for the sky flying engine.

Claims (4)

A pair of cylinders 21 and 22 having cylinder bores 21a and 22a in parallel; A pair of pistons (31,32) coupled to the pair of cylinder bores (21a, 22a), respectively, to provide a first, second, third, and fourth cylinder (C1, C2, C3, C4); Two pairs of piston shafts (41,42) opposed to each other with the pair of pistons (31,32) in the center thereof; A pair of connecting rods (51,52) connected to the two pairs of piston shafts (41,42) for interlocking reciprocating linear motions of the pistons (31,32) in opposite directions; Intake valves 1-1, 2-1, 3-1, 4-1 and exhaust valves 1-2, 2-2, 3 provided in the four cylinders C1, C2, C3, C4, respectively. -2,4-2) reciprocating engine, characterized in that included. The valve opening and closing of claim 1, wherein the intake / exhaust valves 1-1, 2-1, 3-1, 4-1 are opened and closed. Means, Push button means (P1, P2, P3, P4) respectively installed on the piston shafts (41, 42); And a guiding means (G1, G2, G3, G4) for being pressed by the push button means of the next stroke at the end of each stroke. The method of claim 1, The eight reciprocating engines, characterized in that the four intake, exhaust valves are connected two by four first, two, three, four valves (1, 2, 3, 4). The method of claim 1, At least a pair of compression rings 101 and a pair of oil rings 102 are disposed opposite to the pistons 31 and 32, and between the piston shafts 41 and 42 between the pair of oil rings 102. Reciprocating engine, characterized in that the oil is supplied through the oil supply passage (105) connected to (31,32).