KR100479539B1 - Rotary engine - Google Patents

Abstract

According to the present invention, the mixed gas compressed through the rotary suction valve mounted on the same rotary shaft explodes in a separate combustion chamber to apply this explosion force to the power generating vanes according to the opening and closing of the exhaust valve mounted on the same rotary shaft to generate power. It provides a rotary engine that can. The rotary engine includes a compression section rotatably provided with a compression device for compressing a mixed gas; An intake section rotatably provided with an intake valve for sucking and transporting the mixed gas compressed in the compression section; A combustion section having a combustion chamber for combusting and exploding compressed gas conveyed from the intake section; An exhaust section rotatably provided with an exhaust valve for transporting the inflated gas generated by combustion and explosion in the combustion section; and a compartment formed in communication with the exhaust section, the compartment into which the expansion gas from the exhaust section is supplied; The compartment includes a rotor that is pressurized by the pressure of the expansion gas and rotates, and the rotor is integrally provided with a drive shaft for supplying power to the outside, and is composed of a power generating section sealed by side walls.

Description

Rotary engine {ROTARY ENGINE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary engine, and more particularly, to a rotary engine having a smooth rotation of a shaft, easy lubrication, low noise, and easy production.

Generally, but not limited to, various devices, such as vehicles, power units, and drive units, are equipped with internal combustion engines that properly use various fuels. Among such internal combustion engines, there is a reciprocating reciprocating engine which operates by converting a reciprocating motion of an engine piston by a power or energy generated by combustion of fuel into a rotational motion using a crank shaft. However, such a reciprocating internal combustion engine has been an obstacle to maximizing the performance of the engine such as a camshaft for opening and closing the intake valve and the exhaust valve, and a crankshaft for converting the reciprocating motion into a rotational motion. In addition, there is a relatively heavy, complicated, noisy problem.

On the other hand, there is a rotary internal combustion engine that was developed in consideration of the problems of the reciprocating internal combustion engine. This rotary internal combustion engine is basically installed in a generally elliptical combustion chamber with a rotor rotatable by a shaft, and configured to perform suction, compression and exhaust by the rotation of the rotor, and has less vibration than a reciprocating engine, It can be manufactured in a small size and light weight, and has the advantage of easy acceleration. Representative of such a rotary engine, there is a rotary internal combustion engine, also known as "Wankel Rotary Engine" developed by Germany's Vankel.

However, the conventional rotary internal combustion engine has been shown to generate various problems despite the advantages described above. First, the conventional rotary internal combustion engine has a problem that the shape of the combustion chamber according to the operation trajectory is complicated and the two shafts of the rotating body are inscribed in rotation with each other in the gears and the configuration is complicated and the vibration and noise are excessively generated. .

In addition, a gap is generated between the triangular end of the rotor and the inner wall of the combustion chamber, incomplete combustion occurs, and the performance or efficiency of the engine is deteriorated due to deterioration of lubricity.

In addition, there is a problem of weak durability and short lifespan.

Moreover, conventional rotary engines, such as Vankel engines, are limited to expensive metals that are resistant to impact due to excessive shocks during driving, resulting in problems of material limitation and cost increase.

Accordingly, the present invention has been invented to solve the above problems, and an object of the present invention is to provide a rotary internal combustion engine with improved engine efficiency, simple structure, improved lubricity and sealability.

Another object of the present invention is that the mixed gas compressed through the rotary suction valve is mounted on the same rotary shaft to explode in a separate combustion chamber to apply the explosion force to the power generating vanes according to the opening and closing of the exhaust valve mounted on the same rotary shaft. It is to provide a rotary internal combustion engine that can improve the engine efficiency by generating a rotary motion.

Still another object of the present invention is to provide a rotary internal combustion engine having improved durability by automatically supplying lubricating oil required for operation of an engine without requiring a separate lubricating oil supply device.

Still another object of the present invention is to provide a rotary internal combustion engine that can be easily manufactured and repaired, can improve durability, and can be expanded by being composed of only a single rotating body.

Still another object of the present invention is to provide a rotary engine in which an eccentric rotation does not occur, no shock occurs during rotation, and a combustion chamber is separated.

Still another object of the present invention is to provide a rotary engine capable of selecting various materials that can be manufactured.

These purposes, one side is sealed by the side wall, has a suction port for supplying the mixed gas and oil, a compression chamber is formed in communication with the suction port, compression for compressing the mixed gas flowing into the compression chamber A compression section in which the device is rotatably provided; An intake section integrally formed in the compression section and rotatably provided with an intake valve for sucking and transporting the mixed gas compressed in the compression chamber; A combustion section formed in communication with the intake section and having a combustion chamber for combusting and exploding the compressed gas transferred from the intake section; An exhaust section formed integrally in communication with the combustion section, the exhaust section being rotatably provided with an exhaust valve for conveying the inflated gas generated by combustion and explosion in the combustion chamber, and in communication with the exhaust section, Comprising an expansion gas is supplied to the compartment, the compartment is provided with a rotor is rotated by the pressure of the expansion gas, the rotor is provided with a drive shaft for supplying power to the outside integrally, by the side wall It can be achieved by a rotary engine comprising a closed power generating section.

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

First, referring to Figures 1 to 9, the rotary engine according to a preferred embodiment of the present invention is provided with a cylinder block 10 whose appearance forms a generally rectangular cube. The cylinder block 10 has a compression section for compressing the mixed gas, a combustion section for sucking and burning the compressed gas, and an expansion for generating power using combustion and explosive force in the combustion section, as will be described later in detail. The sections are organized in a way that they communicate with each other. In addition, a suction section is formed between the compression section and the combustion section to suck the compressed gas compressed from the compression section into the combustion chamber. An exhaust section is formed.

The cylinder block 10 has a compression section 12 for compressing the mixer on one side thereof. The compression section 12 has sidewalls 14 forming one side of the cylinder block 10. A through hole 16 is formed in the upper portion of the central axis of the side wall 14 so that the rotating shaft, which will be described later, is rotatably inserted. One side of the compression section 12 is formed with a suction port 18 for supplying the mixed gas from the mixed gas supply source (not shown) and the oil from the oil supply source (not shown) to the inside of the compression section.

In the compression section 12, a rotor housing, that is, a compression chamber 20, into which a mixer flowing from the suction port 18 flows is formed. Inside the compression chamber 20, a compression device 22 for compressing the mixer flowing from the suction port 18 is rotatably installed. The compression device 22 has a driven shaft 24 whose one axis is rotatably supported by the through hole 16 of the first side wall 14. In particular, the driven shaft 24 is provided with a mounting groove 26 that penetrates the central axis thereof, and the mounting groove 26 is provided with a compression vane 28 for actually compressing the mixer in the compression chamber. It is preferable. The compression vane 28 is preferably configured such that both ends thereof contact the inner wall of the compression chamber 20. As such, the compression vane 28 is divided into two halves 28a and 28b to maintain the contact between the end of the compression vane 28 and the inner surface of the compression chamber 20 and such contact confidentially. Each of these half portions 28a and 28b is elastically forced toward the inner side of the compression chamber by the elastic member 29 inside the driven shaft 24, and furthermore, the engine is rotated by the centrifugal force as the engine rotates. As a result, airtightness between the end of the compression vane and the inner surface of the compression chamber is maintained.

On the other hand, in the compression chamber 20, a mixer storage tank 30 for receiving and storing the mixed gas compressed in the compression chamber is formed in communication with the compression chamber. The mixer storage tank 30 is preferably formed to be bent to completely and easily separate the oil introduced with the mixer to be accommodated. In addition, a lower portion of the mixer storage tank 30, there is formed a lubricating oil storage tank 32 for collecting the lubricating oil, that is, oil which is separated from the mixer there and dropped downward by gravity.

On one side of the compression section 12 is formed an intake section 34 for supplying the mixer stored in the mixer storage tank 30 of the compression section to the combustion chamber described later. The intake section 34 is provided with an intake valve 36 which is integrally connected to the driven shaft 24. Intake valve 36 is preferably formed of a disc-shaped rotary rotor or rotary valve. In place of the intake valve 36, an inlet 38 is provided for supplying the compressed mixer to the combustion chamber described later. The inlet port 38 is provided with two pieces, and each inlet port 38 is preferably formed at a position facing each other. In addition, a pressure gauge 40 is provided below the intake section 34 for measuring the pressure inside the intake section and the pressure of the mixer supplied to the combustion chamber. On the other hand, the intake valve 36 is preferably formed with a lubrication passage 42 through which lubricating oil can be supplied or moved in order to smooth the rotation thereof.

The intake section 34 is provided with a combustion section 44 for combusting the mixer flowing therefrom. The combustion section 44 has a suction port 46 which is in communication with the intake port 38 of the intake valve 36 during rotation of the intake valve 36 of the intake section 34. Of course, the combustion section 44 has a combustion chamber 48 for actually burning the mixer coming from the inlet 46. The combustion chamber 48 is provided with an ignition plug 50 for supplying flame to the mixer for combustion. According to this configuration, when the intake valve 36 coincides with or communicates with the intake port 46, the mixer is introduced into the combustion chamber through the communication port, and the mixer is ignited and combusted by the operation of the spark plug. On the other hand, the other side of the combustion section 44, that is, the other side opposite to the side in which the inlet port 38 is formed, the discharge port 52 for discharging the expanded and exploded gas in the combustion chamber is formed.

One side of the combustion section 44 is integrally provided with an exhaust section 54 for discharging the expanded gas, which is combusted and exploded in the combustion chamber, to generate power as described below. The exhaust section 54 is provided with an exhaust valve 56 which is also integrally connected to the driven shaft 24. Exhaust valve 56 is preferably formed of a disc-shaped rotary rotor or rotary valve similar to intake valve 36 described above. The exhaust valve 56 is formed with two exhaust ports 58 in communication with the outlet 52 of the combustion section 44 for supplying the compressed mixer to the expansion section described below. Each of the exhaust ports 58 is preferably formed symmetrically with respect to the central axis. In addition, each of the exhaust ports 58 is preferably formed at positions facing each other along the radial direction of the combustion chamber. On the other hand, an exhaust passage 60 is formed at the side of the exhaust section 54 for transferring the expansion gas from the exhaust section 54 to the power generation section described later. The exhaust valve 56 is preferably provided with a lubricating oil passage 62 through which lubricating oil can be supplied or moved in order to smooth its rotation.

The side of the exhaust section 54 is integrally formed with a power generating section 64 that can actually provide power using the expansion gas supplied from the exhaust section. The power generating section 64 is formed with a compartment 66 communicating with the exhaust passage 60 of the exhaust section 54. Inside the compartment 66, a rotor 68 is rotatably installed to rotate by the pressure of the expansion gas flowing from the exhaust passage 60 so as to actually generate rotational power. In particular, the rotor 68 is provided with a mounting groove 70 penetrating the central axis of the transverse, the mounting groove 70 is forced by the expansion gas flowing into the compartment through the exhaust passage 60 and consequently It is preferable that the power generating vane 72 capable of rotating the rotor 68 is inserted therein. The power generating vane 72 is preferably configured such that both ends thereof contact the inner wall of the compartment 66. As such, in order to keep the contact between the end of the power generating vane 72 and the inner surface of the compartment 66 and such contact airtight, the power generating vane 72, like the compression vane 28 described above, is Two halves 72a; 72b, each of which halves 72a: 72b are elastically forced toward the inner side of the compartment by an elastic member 74, such as a spring, inside the mounting groove, This also maintains hermeticity between the end of the power generating vane and the inner surface of the compartment by the action of centrifugal force as the engine rotates.

On the other hand, the power generation section 64 is formed with a discharge port 76 for discharging the expansion gas after rotating the rotor 68 to the outside. In addition, the drive shaft 78 is integrally connected to the rotor 68 to provide the power generated by the rotor to the outside. Of course, the drive shaft 78 is connected to the driven shaft 24 via the components as described above, and it is understood that the central axes of each shaft coincide with each other. Side portions 80 of the power generating section 64 are integrally provided with sidewalls 80 that form the outer wall of the cylinder block 10. Of course, the side wall 80 is formed with a support hole 82 for rotatably supporting the drive shaft 78 as well as the drive shaft 78 protrudes to the outside. Of course, the center of the through hole formed in the side wall 14 of the compression section 12 and the center of the support hole 82 formed in the side wall 80 of the power generating section 64 are preferably located on the same axis.

In particular, the intake section 34 is preferably provided with a pressure regulator 84 to adjust the pressure in accordance with various variables, that is, the fuel used. Accordingly, in the rotary engine according to the present invention, various fuels such as gasoline, diesel, and gas can be used without limitation.

In addition, as described above, the rotary engine according to the present invention has no limitation of the material because the combustion chamber is separated and the eccentric rotation does not occur and the impact force does not occur. The rotary engine according to the present invention can also be manufactured from a ceramic material having excellent heat resistance and corrosion resistance.

Hereinafter, the operation of the rotary engine according to the present invention and its operation mode will be described in detail.

For example, when operating the rotary engine according to the invention, which can be mounted on a drive, a power unit or various other power generating units, the side of the compression section 12 of the cylinder block 10 at the same time the driven shaft 24 is rotated. Through the suction port 18 formed in the mixing of the appropriate amount of air and fuel is introduced into the compression chamber (20).

In this way, the mixer introduced into the compression chamber 20 is compressed by the compression vane 28 reciprocally installed on the driven shaft 24 as the driven shaft 24 is rotated, as shown in FIG. It is compressed in the rotational direction of the coaxial 24. At this time, since the compression vane 28 is rotated while both ends thereof are in contact with the inner wall of the compression chamber 20, the compression vane 28 can effectively prevent the mixer to be compressed from leaking backward. Of course, such a hermetic contact between the compression vane 28 and the inner surface of the compression chamber 20 is that the compression vane 28 is composed of two halves 28a and 28b, each of which has a half 28a: This is because 28b) is elastically forced toward the inner surface of the compression chamber by the elastic member 30, and at the same time, it is forced by the centrifugal force acting on the rotating body. On the other hand, the mixer compressed in the compression chamber 20 is transferred to the mixer storage tank 30 to separate the lubricating oil contained in the mixer. The lubricating oil thus separated is collected in the lubricating oil storage tank 32 installed below the mixer storage tank 30.

Thereafter, the mixer in the mixer storage tank 30 has a combustion section through the communication port as soon as the intake port 38 formed in the intake valve 36 communicates while the intake valve 36 of the intake section 34 is rotated. It is supplied to the combustion chamber 48 through the inlet 46 of 44. The mixer supplied to the combustion chamber 48 is combusted and exploded by the spark plug 50.

Thereafter, the expansion gas generated when the mixer is burned and exploded in the combustion chamber 48 is discharged through the outlet 52. The expansion gas discharged in this way communicates with the exhaust port 58 of one of the two exhaust ports 58 provided in the exhaust port 56 of the exhaust port 54 and the rotating exhaust section 54. Are transported through. The expansion gas is then supplied to the compartment 66 of the power generating section 64 through the exhaust passage 60 of the exhaust section 54.

As the expansion gas supplied to the compartment 66 of the power generating section 64 presses the power generating vane 72 of the rotor 68 therein, the rotor 68 is rotated. At this time, each end of the power generating vane 72 is maintained in the airtight contact to the inner wall of the compartment 66 to prevent the leakage of the expansion gas, which is each half constituting the power generating vane 72 This is because the portions 72a; 72b are forced in opposite directions by the elastic member 74, and this is also forced in the airtight direction by the centrifugal force acting on the rotating body.

As a result, as the rotor 68 is rotated by the expansion gas, the drive shaft 24 integrally formed on the rotor is rotated, so that the rotational power can drive the driving device or another operating device.

Finally, in the power generating section 64, the expansion gas after rotating the drive shaft 78 by rotating the rotor 68 is transferred to the outside through the outlet 76 or to an exhaust gas treatment apparatus (not shown) and purified. Then released to the outside.

Looking at the operation process of the rotary engine as described above, as shown in Figure 10, the intake step (S) for sucking and compressing the mixer in the intake section and compression section of the rotary engine, and compression in the power generation section Combustion and explosion stage (P) for igniting and exploding the mixed mixer, exhaust stage (E) for treating the exhaust gas generated after the explosion in the exhaust section, and initial state for executing the subsequent cycle after the cycle of the rotary engine is completed. It consists of an idling step (I) to return to. This power stroke is achieved twice when the driven shaft 24 is rotated once, and the driving device or the operating device can be driven continuously by repeating such a stroke.

In addition, the pressure of the mixed gas compressed in the compression section can be adjusted using the pressure regulator 84 in the suction section according to the type of fuel used. Accordingly, gasoline, diesel, gas and the like can be used without limitation, and the pressure of the mixed gas corresponding to the fuel used can be set appropriately, thereby maintaining the engine performance optimally.

Moreover, unlike the conventional rotary engine, the impact is not generated when the rotation is performed by the smooth rotation without the eccentric rotation, and the combustion chamber is separated so that there is no sudden impact when the power is generated by the combustion explosion. Accordingly, a variety of materials can be selected, and it is possible to manufacture a ceramic having high heat resistance and corrosion resistance.

According to the operation of the rotary engine as described above, as the shaft rotates, the intake valve and the exhaust valve fixed to the shaft rotate so that the intake and exhaust gas of the mixer are exhausted. Then, a compression section for compressing the mixed gas is formed separately, and the mixed gas is used after being compressed to a constant pressure. In particular, a mixed gas storage tank is provided, and since there is a pressure of a certain portion of the mixed gas in the storage tank, oil can be supplied at this pressure, and thus no separate oil pump needs to be installed. In addition, since the entire oil passage in the cylinder block as well as the compressed gas storage tank is formed as a cooling fin type, the cooling efficiency is improved. Moreover, the combustion section is separated from the compression section and the power generation section, thereby preventing damage to the compression vane of the driven shaft and the power generation vane of the rotor. In addition, the structure of the intake and exhaust systems is simple, and the structure of the overall engine is simple. Of course, the overall appearance of the cylinder block is configured in the form of a pin, the overall cooling efficiency can be improved.

As a result, according to the rotary engine according to the present invention, the engine efficiency is improved, the structure is simple, and the lubricity and the sealing property are improved.

Then, the mixed gas compressed through the rotary suction valve mounted on the same rotating shaft explodes in a separate combustion chamber, and the explosive force is applied to the power generating vanes by opening and closing the explosive force by opening and closing the exhaust valve mounted on the same rotating shaft. There is an advantage that can improve the engine efficiency.

In addition, durability is improved by automatically supplying the lubricating oil required for the operation of the engine without the need for a separate lubricating oil supply device. It is easy to manufacture and repair, improves the durability, and expands the applicability by consisting of a single rotating body only. There is an advantage to this.

While a preferred embodiment according to the present invention has been described above, it will be understood by those skilled in the art that various modifications and changes can be made without departing from the scope of the appended claims.

1 is a partial cutaway perspective view showing a rotary engine according to the present invention as a whole;

FIG. 2 is a partial cutaway perspective view showing the structure of the compression section in detail in the engine of FIG. 1; FIG.

Figure 3 is a partially cut perspective view showing in detail the structure of the intake section in the engine of Figure 1;

Figure 4 is a partial cutaway perspective view showing in detail the structure of the power generating section in the engine of Figure 1;

5 is a cross-sectional view of the engine of FIG. 1.

6 is a cross-sectional view of the compression section of FIG.

7 is a cross-sectional view of the power generation section of FIG. 4.

8 is a side view of the intake valve;

9 is a side view of the exhaust valve;

10 is a power stroke diagram of a rotary engine according to the present invention;

♣ Explanation of symbols for the main parts of the drawing ♣

10: cylinder block 12: compression section

34: intake section 44: combustion section

54: exhaust section 64: power generation section

Claims (8)

One side is sealed by the side wall, and has a suction port through which the mixed gas and oil are supplied, and a compression chamber communicating with the suction port is formed, and one axis penetrates through the side wall to compress the mixed gas flowing into the compression chamber. Compression apparatus comprising a driven shaft rotatably supported by a ball and formed with a mounting groove penetrating the central axis laterally, and a compression vane reciprocally inserted into the mounting groove, each end being in airtight contact with the inner wall of the compression chamber. Compression section is rotatably provided; An intake section integrally formed in the compression section and having an intake valve rotatably connected to a driven shaft of the compression device to suck and transport the mixed gas compressed in the compression chamber; A combustion section formed in communication with the intake section and having a combustion chamber for combusting and exploding the compressed gas transferred from the intake section; An exhaust section integrally formed with the combustion section, the exhaust section having an exhaust valve rotatably connected to a driven shaft of the compression device to convey the expansion gas generated by combustion and explosion in the combustion chamber; And It is formed in communication with the exhaust section, and provided with a compartment for supplying the expansion gas from the exhaust section, the compartment is provided with a rotor that is rotated by being pressed by the pressure of the expansion gas, the rotor to supply power to the outside And a drive shaft for integrally comprising a power generating section sealed by the side wall. delete 2. The compression vane according to claim 1, wherein the compression vane is composed of two halves, each of which is pressed against the inner wall of the compression chamber and the other ends of the compression vanes are forced in opposite directions by a centrifugal force acting on the elastic member and the rotating body. The power generating vane is characterized in that it is composed of two halves each end is in contact with the inner wall of the compartment and each other end is forced to the opposite direction by the centrifugal force acting on the elastic member and the rotating body. Rotary engine. The mixing chamber of claim 1, wherein a lower portion of the compression chamber receives and stores a mixed gas compressed in the compression chamber and separates a lubricant contained in the mixed gas, and a lubricant separated from the mixer storage tank. Rotary engine, characterized in that the lubricant storage tank is installed for storage. The intake valve of claim 1, wherein the intake valve of the intake section has a disc shape, and has two intake ports for supplying a compressed mixer to the combustion chamber, and each intake port is formed at a position opposite to each other. The exhaust valve of the rotary engine, characterized in that the disk is provided with two exhaust ports for supplying the expansion gas to the power generating section, each exhaust port is formed in mutually opposite positions. According to claim 1, wherein the lower portion of the intake section is provided with a pressure gauge (manometer) for measuring the pressure inside the intake section and the pressure of the mixer supplied to the combustion chamber, the intake valve smoothly rotates And a lubrication flow path for forming a lubrication flow path, and a lubrication flow path for smoothly rotating the exhaust valve of the exhaust section. The rotor of claim 1, wherein the rotor of the power generating section is formed with a mounting groove penetrating transversely through the central axis thereof, the mounting groove being forced by the expansion gas flowing into the compartment to rotate the rotor. A rotary engine, characterized in that the power generating vanes are inserted reciprocally. 8. A rotary engine according to any one of the preceding claims, comprising a pressure regulator capable of regulating the pressure of the compressed mixed gas and using any one of gasoline, diesel and gas as fuel.