KR101236149B1 - Rotary engine and multiple-stage rotary engine having the same - Google Patents

Rotary engine and multiple-stage rotary engine having the same Download PDF

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Publication number
KR101236149B1
KR101236149B1 KR1020100094791A KR20100094791A KR101236149B1 KR 101236149 B1 KR101236149 B1 KR 101236149B1 KR 1020100094791 A KR1020100094791 A KR 1020100094791A KR 20100094791 A KR20100094791 A KR 20100094791A KR 101236149 B1 KR101236149 B1 KR 101236149B1
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KR
South Korea
Prior art keywords
space
rotor
cylinder block
combustion
back pressure
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Application number
KR1020100094791A
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Korean (ko)
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KR20120033169A (en
Inventor
김기태
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김기태
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Priority to KR1020100094791A priority Critical patent/KR101236149B1/en
Priority to PCT/KR2011/007124 priority patent/WO2012044051A2/en
Publication of KR20120033169A publication Critical patent/KR20120033169A/en
Application granted granted Critical
Publication of KR101236149B1 publication Critical patent/KR101236149B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/08—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
    • F01C1/12—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of other than internal-axis type
    • F01C1/123—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of other than internal-axis type with tooth-like elements, extending generally radially from the rotor body cooperating with recesses in the other rotor, e.g. one tooth
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C19/00—Sealing arrangements in rotary-piston machines or engines
    • F01C19/02—Radially-movable sealings for working fluids
    • F01C19/06—Radially-movable sealings for working fluids of resilient material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/04—Lubrication
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/24—Rotary-piston machines or engines of counter-engagement type, i.e. the movement of co-operating members at the points of engagement being in opposite directions
    • F01C1/28—Rotary-piston machines or engines of counter-engagement type, i.e. the movement of co-operating members at the points of engagement being in opposite directions of other than internal-axis type

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Hydraulic Motors (AREA)

Abstract

The present invention relates to a rotary engine and a multistage rotary engine having the same. According to the present invention, since the rotary engine according to the present invention generates power by using combustion gas and steam while supplying fuel and water alternately, the amount of fuel consumed is lower than that of an engine obtaining power using only combustion gas generated during combustion of fuel. Can be greatly reduced. In addition, since the heat generated by burning fuel is used to evaporate water and the steam obtained by evaporating water is used to generate power, the heat generated by burning fuel can be quickly cooled, so that the engine is not required without a separate cooling device. Can increase the efficiency. In addition, by connecting a plurality of rotary compressors in sequence to recycle the combustion gas or steam used as the working gas in the rotary compressor of the front end to the working gas in the rotary compressor of the rear end to reduce the use of fuel or water and energy efficiency by energy reuse It can increase.

Description

ROTARY ENGINE AND MULTIPLE-STAGE ROTARY ENGINE HAVING THE SAME}

The present invention relates to a rotary engine and a multistage rotary engine.

In general, an engine refers to an internal combustion engine that converts thermal energy generated by burning fuel into mechanical energy inside an engine. Internal combustion engines may be classified into gas engines, gasoline engines, petroleum engines, diesel engines, etc. according to the fuel used. Gas engines and gasoline engines are ignited by sparks by spark plugs, while diesel engines use the principle of spontaneously igniting by injecting fuel into high-temperature, high-pressure air.

The internal combustion engine as described above is mainly used in automobiles, which can be divided into a cylinder engine and a rotary engine according to the operation method. The cylinder engine transfers power by converting a reciprocating motion of a piston in a cylinder into a rotational motion using a crank shaft.

However, since the cylinder engine generates vibration or noise due to the reciprocating motion of the piston, various components for damping vibration and noise must be installed. Therefore, the overall volume of the cylinder engine is very large, and the overall weight increases, which greatly reduces the efficiency. have. In addition, in the process of converting the reciprocating motion of the piston into the rotational motion, enormous mechanical energy loss occurs, which causes low efficiency and fuel waste.

On the other hand, the rotary engine is configured to suck, compress, burn, and exhaust by changing the volume of the space generated between the rotor and the cylinder while rotating the eccentric triangular rotor (corresponding to the piston) inside the elliptic cylinder, There is no loss of output because there is no reciprocating member.

As described above, in the conventional rotary engine, the volume ratio of the back pressure space formed by the triangular rotor eccentrically rotating in the elliptical cylinder, that is, the difference between the maximum volume and the minimum volume is small, and the explosive force is operated in a direction perpendicular to the rotation direction of the rotor. The entire explosive force of the fuel is not transmitted to the rotor's rotational force. As a result, the engine life is short due to low power efficiency and frequent failures, and there is also a problem in durability because the triangular rotor repeats contact and non-contact with the inner wall of the elliptical cylinder. In addition, leakage of combustion gas occurs between the outer circumferential surface of the rotor and the inner circumferential surface of the cylinder, which may lower the power efficiency.

Accordingly, the applicant number filed by the applicant of the date of the month of 2007 (Domestic Publication No., hereinafter referred to as an earlier application) is formed in the cylinder block so that a part of the plurality of operating spaces overlap each other, and each of the rotor in the plurality of operating spaces Installed in contact with each other, a combustion device is installed inside or outside the cylinder block, and the combustion gas burned by the combustion device is supplied to a back pressure space formed between the cylinder block and the plurality of rotors to burn the back pressure space. A rotary engine has been introduced that allows gas to rotate the rotor.

As described above, the rotary engine can obtain a continuous rotational force by three strokes of suction, explosion, and exhaust even without a separate crank for converting the reciprocating motion into the rotational motion.

In addition, since the pre- filed rotary engine generates driving force using only the rotation of two rotors without any reciprocating motion of the piston, there is no vibration and noise generation due to the reciprocating motion of the piston, and there are separate parts for vibration and noise prevention. Since it is not necessary, the structure of the whole installation can be greatly simplified, and miniaturization is sufficiently possible.

In addition, in the case of forming the combustion space outside the cylinder block, the pre- filed rotary engine can increase the engine capacity without expanding the size of the engine and can prevent the oil from being carbonized by the heat of combustion. .

In addition, the pre-applied rotary engine provides an appropriate amount of oil to the sliding area with the cylinder block, and installs a skirt to block the leakage of the combustion gas. Could increase.

However, as the pre- filed rotary engine, as the fuel is continuously burned in the combustion device, as the high temperature is generated, the combustion device may be overheated to increase the cooling time for cooling the combustion engine, thereby reducing durability and decreasing engine efficiency. This may cause a problem that a separate cooling device for cooling the combustion device should be further provided. In addition, when the combustion device is integrally coupled to the cylinder block, the entire engine including the cylinder block may be overheated by the high heat generated in the combustion device, thereby degrading durability and lowering engine efficiency. There may also be a problem that a separate cooling device must be further provided for cooling.

In addition, in the above-described rotary engine, the combustion gas supplied to the back pressure space and rotating the rotor has a problem of increasing energy loss as it is exhausted to the outside of the engine while containing a certain amount of thermal energy.

It is an object of the present invention to prevent the combustion apparatus or the entire engine including the same from being overheated by the process of burning fuel or the combustion gas, thereby improving durability of the combustion apparatus and the engine without having to provide a separate cooling apparatus and operating time. It is to provide a rotary engine that can increase the efficiency by increasing the.

Another object of the present invention is to provide a multi-stage rotary compressor that can increase energy efficiency by reusing thermal energy used to operate an engine.

In order to achieve the object of the present invention, the first operating space and the second operating space is formed, the first operating space and the second operating space is formed in part overlapping the cylinder block; A drive rotor rotatably received in the first operating space of the cylinder block and having at least one drive blade formed on an outer circumferential surface thereof; A driven rotor rotatably received in the second working space of the cylinder block, the outer circumferential surface of the cylinder block being in contact with the outer circumferential surface of the driving rotor, and a driven groove being formed in a portion of the outer circumferential surface of the cylinder block so as to seal the driving blade; And an operating unit formed between the first operating space and the second operating space to alternately supply combustion gas and steam to a back pressure space for adding the driving rotor to rotate the driving rotor. A rotary engine is provided.

In addition, in the rotary engine as described above, at least two or more driven rotors are disposed at both sides of the driving rotor to form at least two back pressure spaces, and each stage of the back pressure spaces is provided so that an operation unit is independently connected. A rotary engine is provided.

In addition, the plurality of rotary engines as described above are provided so that the back pressure space of each rotary engine is sequentially communicated with each other, and the operating unit is connected to the most upstream back pressure space so that combustion gas or steam moves each rotary engine sequentially. There is provided a multi-stage rotary engine that allows for recycling.

Since the rotary engine according to the present invention generates power by using combustion gas and steam while supplying fuel and water alternately, it is possible to greatly reduce the consumption of fuel compared to an engine obtaining power only by the combustion gas generated during combustion of the fuel. .

In addition, since the heat generated by burning fuel is used to evaporate water and the steam obtained by evaporating water is used to generate power, the heat generated by burning fuel can be quickly cooled, so that the engine is not required without a separate cooling device. Can increase the efficiency.

In addition, by connecting a plurality of rotary compressors in sequence to recycle the combustion gas or steam used as the working gas in the rotary compressor of the front end to the working gas in the rotary compressor of the rear end to reduce the use of fuel or water and energy efficiency by energy reuse It can increase.

1 and 2 are a perspective view of the rotary engine broken according to the first embodiment of the present invention,
2 and 3 are cross-sectional views of " I-I " and " II-II "
4 is a perspective view illustrating a sealing part of the rotary engine according to FIG. 1;
5 is a cross-sectional view showing a driving blade of the rotary engine according to FIG. 1;
6 is a cross-sectional view showing the oil supply structure of the rotary engine according to FIG.
7 is a schematic view showing an operating unit according to FIG. 1, FIG.
8 to 11 is a cross-sectional view showing an operation of generating power while the fuel and water are alternately supplied in the rotary engine according to FIG.
12 is a perspective view showing another embodiment of the air supply unit in the rotary engine of the present invention;
13 is a perspective view showing another embodiment of the operation unit in the rotary engine of the present invention;
14 and 15 are cross-sectional views showing embodiments of a multistage rotary engine.

Hereinafter, a rotary engine and a multistage rotary engine according to the present invention will be described in detail based on the first embodiment shown in the accompanying drawings.

1 to 3 is a view showing the configuration of a rotary engine according to the present invention. As shown in the drawing, the rotary engine 100 of the present invention includes a cylinder block 110 in which the first operating space 111 and the second operating space 112 are partially overlapped with each other, and the cylinder block 110. A driving rotor (hereinafter, referred to as a first rotor) 120 rotatably accommodated in the first working space 111 of the engine and rotated by a working gas such as combustion gas or water, and a second operation of the cylinder block 110. A driven rotor (hereinafter, referred to as a second rotor) 130 rotatably accommodated in the space 112 and rotating by the first rotor 120 while forming a back pressure space S1 together with the first rotor 120. And an operation unit 140 provided outside the cylinder block 110 to supply a working gas to the back pressure space S1. The operation unit 140 burns fuel to produce combustion gas, and supplies the combustion gas to the back pressure space S1 or vaporizes water by using heat generated in the process of burning fuel to make steam. It is configured to supply to the back pressure space (S1).

As shown in FIGS. 1 and 2, the cylinder block 110 has a first operating space 111 and a second operating space 112 formed in parallel in the axial direction, and the first operating space 111 and the second operating space 111. Sites in which the working space 112 abuts each other are formed to partially overlap. The diameters of the first operating space 111 and the second operating space 112 may be the same, but as the driving blades 122 are formed in the first rotor 120 to be described later, the driving blades 122 may be formed. The diameter of the first working space 111 may be larger than the diameter of the second working space 112 by the length.

In addition, the cylinder block 110 communicates with the side of the first operating space 111, and an inlet port 113 is formed to suck the working gas. The cylinder block 110 has a predetermined phase difference from the inlet port 113 at the side of the first operating space 111. An exhaust port 114 is formed so that the working gas communicated with the finished work is discharged.

In addition, the oil supplied between the inlet port 113 and the exhaust port 114 to the first working space 111 of the cylinder block 110 through the first oil channel 125 and the second oil channel 126 which will be described later. The drain port 115 is formed to be discharged, the bottom surface of the cylinder block 110 is coupled to the collecting tank 116 for collecting the oil recovered through the drain port 115, the collecting tank ( At the lowest point of 116, an oil circulation pipe 117 is connected to circulate oil recovered in the sump 116 to the first oil channel 125 again. A check valve 118 is installed in the middle of the oil circulation pipe 117 to prevent oil from flowing back.

In addition, end portions of the first rotor 120 and the second rotor 130 are inserted into both sides of the cylinder block 110 in the longitudinal direction, and the outer circumferential surface thereof is in sliding contact with the inner circumferential surface of the cylinder block 110. The sealing unit 119 is formed to be. The sealing part 119 may be formed to be stepped, but may be formed to be inclined or curved in some cases. In addition, a radial bearing (not shown) may be installed between the inner circumferential surface of the sealing unit 119 and the outer circumferential surfaces of the first rotor 120 and the second rotor 130 corresponding thereto to prevent friction loss and leakage. A plurality of layers of labyrinth seals (not shown) may be formed along the axial direction.

As shown in FIGS. 1 and 2, the first rotor 120 includes a first rotor body 121 formed in a cylindrical shape and rotatably disposed in the first working space 111. The first rotor body 121 has a diameter smaller than the diameters of the first operating space 111 and the second operating space 112 of the cylinder block 110 and is formed to have a predetermined length in the axial direction. .

On the outer circumferential surface of the first rotor body 121, a driving blade 122 protrudes by a predetermined height in the radial direction and extends by a predetermined length in the axial direction, that is, the length of the first rotor body.

The drive blade 122 may be formed such that its outer circumferential surface may be in sliding contact with the inner circumferential surface of the cylinder block 110 or may be contacted at a slight interval, that is, at an interval of 0.5 mm or less. In addition, the driving blade 122 may be formed in a wedge cross-sectional shape, but as shown in FIG. 5, the outer circumferential surface thereof is wide enough to cover the intake port 113 of the cylinder block 110, and the first operating space ( It may be preferable to increase the combustion effect and the evaporation effect in the combustion space (S2) to be described later to have an arc shape so as to have the same curvature as the inner circumferential surface curvature of 111.

In addition, a driving shaft (hereinafter, referred to as a first rotating shaft) 123 is integrally coupled to the center of the first rotor body 121. Both ends of the first rotation shaft 123 protrude out of the cylinder block 110, and one end of the first rotation shaft 123 is coupled to a driving gear 124 for rotating the second rotor 130, and the other end of the engine It can be coupled to a rotating portion (not shown) of the machine equipped with.

In addition, as shown in FIGS. 2 and 6, a first oil passage 125 is formed at the center of the first rotation shaft 123, and communicates with the first oil passage 125 to the outer circumferential surface of the driving blade 122. At least one second oil passage 126 is radially penetrated. The second oil passage 126 may be formed smaller than the diameter of the first oil passage 125.

As shown in FIG. 4, a skirt 127 may be installed at one side of the back pressure space S1 of the driving blade 122 to block leakage of the combustion gas or vapor of the back pressure space S1. The skirt 127 is formed of a thickness and a material that can have elasticity so that its outer end is in contact with the inner circumferential surface of the first working space 111 to bend in the rotational direction when the first rotor 120 is rotated. And welded or fastened to the driving blade 122. Here, the skirt 127 is installed not only along the longitudinal direction of the driving blade 122 but also along the height direction so as to be in contact with the side wall surface of the sealing portion 119 forming the side surface of the cylinder block 110. It is preferable to be. The longitudinal skirt and the height skirt may be integrally formed or may be assembled separately.

As shown in FIGS. 1 and 2, the second rotor 130 has a cylindrical shape such that its outer circumferential surface is almost in contact with the inner circumferential surface of the second working space 112 of the cylinder block 110. It consists of a body 131. The outer circumferential surface of the second rotor 130 may be formed to be in sliding contact with the inner circumferential surface of the cylinder block 110 or to be contacted at a slight interval, that is, at an interval of 0.5 mm or less.

A driving blade 122 of the first rotor 120 is slidably inserted into one side of the outer circumferential surface of the second rotor body 131 so that the back pressure space S1 is formed in the cylinder block 110 together with the first rotor 120. Follower grooves 132 are formed to form.

In addition, a driven shaft (hereinafter, referred to as a second rotation shaft) 133 is integrally coupled to the center of the second rotor body. Both ends of the second rotation shaft 133 protrude to the outside of the cylinder block 110, one end of which is coupled to the driven gear 134 meshing with the drive gear of the first rotor 120, the other end It may be coupled to a rotating portion (not shown) of the machine equipped with the engine.

The operation unit 140 is provided with a predetermined combustion space (S2) closed as shown in Figures 2 and 3 is provided outside the cylinder block 110 and to the inlet port 113 of the cylinder block 110 The external combustion cylinder 141 connected to the fuel supply nozzle 142 which is connected to one side of the external combustion cylinder 141 to supply fuel, and the other side of the external combustion cylinder 141 is supplied with water. The water supply nozzle 143 and the air supply nozzle 144 connected to the other side of the external combustion cylinder 141 to supply air to the external combustion cylinder 141 and the external combustion cylinder 141 Supply switching to selectively turn on / off the spark plug 145 and the fuel supply nozzle 142 and the water supply nozzle 143 installed on one side to ignite the fuel supplied to the external combustion communication 141. Part 146 is included.

The external combustion cylinder 141 is fixedly spaced apart from the cylinder block 110 by a predetermined interval, and the cylinder block (S1) to supply the combustion gas or steam generated in the combustion space (S2) to the back pressure space (S1) It is connected to the intake port 113 of the working gas supply pipe 146.

As shown in FIG. 7, the fuel supply nozzle 142 is provided with a fuel amount control valve 142a capable of adjusting a supply amount of fuel, and the fuel amount control valve 142a is a first switching cam 149a which will be described later. It may be electrically connected to the first switch 142b for opening and closing the fuel amount control valve 142a while being selectively on / off by the).

As shown in FIG. 7, the water supply nozzle 143 is provided with a water amount control valve 143a capable of adjusting a water supply amount in the middle thereof, and the water level control valve 143a has a second switching cam 149b to be described later. It is selectively connected to the second switch (143b) to open and close the volume control valve (143a) while being selectively on / off by.

The air supply nozzle 144 may be connected to an air pump provided separately from the cylinder block 110 by an air supply pipe, but as shown in FIGS. 1 and 2, that is, the working space of the cylinder block 110. It may be desirable to connect the air supply nozzle 144 to the air supply unit 150 that is integrally provided at one side of the (111) 112 to simplify the engine.

The supply switching unit 146 is engaged with the drive gear 124 to rotate the switching gear 147, the switching shaft 148 is coupled to the center of the switching gear 147 to transmit the rotational force, the switching A first switching cam 149a and a second switching cam 149b which are formed to protrude to a predetermined height at one end of the shaft 148 to operate the first switch 142b and the second switch 143b, respectively. . The switching gear 147 may be engaged with the driven gear 134 to rotate.

The switching gear 147 is formed twice as large as the diameter of the drive gear 124 to supply fuel and water one by one to the combustion space S2 each time the drive shaft 124 rotates twice. It may be desirable. Of course, the ratio of the diameter of the switching gear 147 and the drive gear 124 may vary according to the supply cycle of fuel and water.

The first switching cam 149a and the second switching cam 149b are formed at predetermined intervals along the length direction to correspond to the first switch 142b and the second switch 143b, respectively, and have a phase difference of approximately 180 degrees. The first switching cam 149a and the second switching cam 149b may also be formed to have a phase difference depending on a supply period of fuel and water or a diameter ratio of the switching gear 147 and the drive gear 124. It may be formed differently.

As shown in FIG. 2, the air supply unit 150 includes a housing 151 having a first rotating space 154 and a second rotating space 155, and a first rotating space 154 of the housing 151. And a first rolling piston 152 and a second rolling piston 153 rotatably inserted into the second rotation space 155 to form a pumping space S3 so as to pump air while rotating.

An air inlet 156 and an air outlet 157 are formed in the housing 151, respectively, and the air outlet 157 is connected to an air supply nozzle 144 to communicate with the external combustion communication 141.

The air discharge port 157 is larger than the inlet port 113 of the cylinder block 110 so that the time point at which air is discharged from the pumping space S3 and the time point at which air is sucked into the external combustion communication 141 may coincide. It may be formed at a position having a phase difference of approximately 45 to 120 degrees toward the rear side.

The first rotating space 154 and the second rotating space 155 are formed to correspond to the first operating space 111 and the second operating space 112 of the cylinder block 110, respectively, the first rolling The piston 152 and the second rolling piston 153 may be formed to correspond to the first rotor 120 and the second rotor 130, respectively. That is, a pumping blade 158 is formed on an outer circumferential surface of the first rolling piston 152, a pumping groove (not shown) is formed on the second rolling piston 153, and a skirt (not shown) is formed on the pumping blade 158. May be installed.

Reference numeral 159 in the drawing indicates a discharge valve.

The rotary engine of the present invention as described above is operated as follows.

That is, fuel and air are injected into the combustion space (S2) of the external combustion cylinder (141) to combust the fuel and rotate the first rotor (120) by using a high-pressure combustion gas generated as the fuel is combusted. You get power. In addition, by supplying water to the combustion space (S2) of the external combustion cylinder 141 to generate a high-pressure steam with the heat generated while burning the fuel, by using the steam to rotate the first rotor 120 by power You get

Looking at this in detail as follows.

First, when the switching gear 147 of the supply switching unit 146 rotates in engagement with the drive gear 124 or the driven gear 134, the switching shaft 148 coupled to the switching gear 147 is The rotation is linked to the first rotor 120 or the second rotor 130.

Then, among the switching cams 149a and 149b of the switching shaft 148, the first switching cam 149a turns on the first switch 142b of the fuel supply nozzle 142. ON) to open the combustion amount control valve 142a.

Then, as shown in FIGS. 8 and 9, a predetermined amount of fuel is supplied to the combustion space S2 of the external combustion cylinder 141, and at the same time, the spark plug 145 is operated to supply the combustion space S2. By burning the used fuel, a high pressure combustion gas is generated.

Then, the combustion gas of the combustion space (S2) is introduced into the back pressure space (S1) through the working gas supply pipe 146 and the inlet port 113, by the pressure of the combustion gas introduced into the back pressure space (S1) As the driving blade 122 is pushed, the first rotor 120 rotates in a counterclockwise direction as shown in the drawing to generate power for rotating the first rotating shaft 123 in a counterclockwise direction.

Next, when the switching shaft 148 further rotates, the first switching cam 149a is separated from the first switch 142b of the fuel supply nozzle 142 and the first switch of the fuel supply nozzle 142. 142b is turned OFF to stop the supply of fuel, and the second switching cam 149b momentarily turns on the second switch 143 of the water supply nozzle 143 to adjust the amount of water. 143a) is opened.

Then, as shown in FIGS. 10 and 11, a predetermined amount of water is injected into the combustion space S2 of the external combustion cylinder 141, and the water injected into the combustion space S2 is the combustion space S2. Steam is generated as it is evaporated by the high heat generated by burning the fuel.

Then, the steam of the combustion space (S2) is introduced into the back pressure space (S1) through the working gas supply pipe 146 and the inlet port 113, by the pressure of the steam introduced into the back pressure space (S1) As the driving blade 122 is pushed, the first rotor 120 rotates in a counterclockwise direction as when the first rotor 120 rotates by combustion gas, thereby generating power for rotating the first rotating shaft 123 counterclockwise. do.

Next, when the switching shaft 148 further rotates, the second switching cam 149b is separated from the second switch 143b of the water supply nozzle 143 and the second switch of the water supply nozzle 143 is rotated. 143b is turned off to stop the supply of water, and the first switching cam 149a turns on the first switch 142b of the fuel supply nozzle 142 again to temporarily turn on the external combustion communication. A series of processes for supplying a certain amount of fuel to the combustion space S2 of 141 is repeated.

At this time, the second rotor 130 is rotated in the opposite direction of the first rotor 120 by the drive gear 124 and the driven gear 134, the outer peripheral surface of the first rotor body 121 As it rotates in contact with the outer circumferential surface of the second rotor body 131, the combustion gas of the back pressure space S1 is prevented from leaking to the exhaust port 114.

In addition, while the first rotor 120 and the second rotor 130 continue to rotate, the high pressure combustion gas or steam flowing into the back pressure space S1 is opposite to the driving blade 122 having a relatively low pressure. Although the leakage may occur, the skirt 127 is installed on the side of the back pressure space side of the driving blade 122 to effectively prevent the combustion gas or steam from the back pressure space S1 from leaking beyond the driving blade 122. have.

In addition, when the first rotor 120 and the second rotor 130 and the first rolling piston 152 and the second rolling piston 153 continue the rotational movement, the first oil passage 125 and the The oil is supplied to the second oil passage 126, and the oil is supplied between the outer circumferential surface of the first rotor 120 and the inner circumferential surface of the cylinder block 110 to lubricate. A part of the oil is transferred between the outer circumferential surface of the second rotor 130 and the inner circumferential surface of the cylinder block 110 to lubricate the second rotor 130 and the cylinder block 110. And the lubricated oil is collected into the sump 116 through the drain port 115 of the cylinder block 110, the oil is recovered through the oil return pipe 117 of the first rotating shaft 123 It is resupplied to the first oil passage 125.

On the other hand, the air supply unit 150 is the first rolling piston 152 is rotated while the volume of the pumping space (S3) is variable, the volume of the pumping space (S3) is generated while generating a pumping force to air Is sucked into the pumping space (S3) through the air intake 156. In addition, the air sucked into the pumping space S3 is compressed by the first rolling piston 152 and the second rolling piston 153, and the external lead through the air discharge port 157 and the air supply nozzle 144. It is supplied to the combustion space S2 of the communication 141 and combusted together with the fuel.

In this way, since the rotary engine of the present invention generates power by using combustion gas and steam while supplying fuel and water alternately, the consumption of fuel can be greatly reduced as compared to an engine obtaining power only by combustion gas generated during combustion of fuel. have.

In addition, since the heat generated by burning fuel is used to evaporate water and the steam obtained by evaporating water is used to generate power, the heat generated by burning fuel can be quickly cooled, so that the engine is not required without a separate cooling device. Can increase the efficiency.

Another embodiment of the rotary engine according to the present invention is as follows.

That is, in the above-described embodiment, the air supply unit is configured to use the output of the engine, but the present embodiment compresses air by using an air pump (or air compressor) having a separate driving source, It is configured to supply the compressed air to the combustion space of the engine.

For example, in the rotary engine according to the present embodiment as shown in FIG. 12, the basic configuration is the same as the above-described embodiment, but the air supply unit is connected to the drive motor in the internal space of the conventional compressor C, that is, the housing 151. It is provided with a compression unit for sucking and compressing air while operating by the drive motor, and is configured to supply the air compressed in the compression unit to the combustion space (S2). In this case, the basic working effects of the rotary engine are similar to those of the above-described embodiment. In this embodiment, however, the air supply unit may be operated by a separate driving source without using the output generated from the engine, thereby further increasing the actual output of the rotary engine.

Another embodiment of the rotary engine according to the present invention is as follows.

That is, in the above-described embodiment, the fuel tank having the combustion space is spaced apart from the cylinder block at a predetermined interval, but in this embodiment, the fuel cylinder is fixedly coupled to one side of the cylinder block.

For example, as shown in FIG. 13, an inlet 213 is formed on one side of the cylinder block 210 to communicate with the back pressure space S1, and has a combustion space S2 to communicate with the inlet 213. Tighten the combustion cylinder 241 with a bolt or the like and is fixed to the cylinder block (210). In addition, fuel and water are connected to the combustion cylinder 241 by connecting a fuel supply nozzle 242, a water supply nozzle 243, and an air supply nozzle (not shown), respectively, to the combustion space S2. The combustion gas and steam are alternately generated while being supplied alternately, and the combustion gas and steam are alternately supplied to the back pressure space S1 to obtain the power of the engine. In the drawings, reference numeral 220 denotes a first rotor, and 230 denotes a second rotor.

Since the basic configuration of the rotary engine and the basic operation and effects thereof according to the present embodiment are similar to those of the above-described embodiment, a detailed description thereof will be omitted. However, in the present embodiment, as the combustion cylinder 241 is fixedly coupled to the cylinder block 210 can achieve the modularization and miniaturization of the engine. However, unlike the case in which the combustion cylinder 241 is installed separately from the cylinder block 210, the size of the combustion cylinder 241 is limited, so that there is a relatively limit to increase the capacity of the engine. Since the heat generated in the can be transferred to the cylinder block 210 to install a heat insulating material to prevent the cylinder block 210 from overheating or to require a separate cooling device for cooling the cylinder block 210 There may be limitations.

Another embodiment of the rotary engine according to the present invention is as follows.

That is, the above-described embodiments constitute a single rotary engine, but the present embodiment constitutes a multi-stage rotary engine connecting a plurality of engines.

For example, as shown in FIG. 14, the rotary engine according to the present embodiment includes a cylinder block 310 having a shape in which approximately three cylinders are partially overlapped, and a first operating space 311 provided in the middle of the cylinder block 310. The first rotor 320 is rotatably provided and the first driving blade 322 and the second driving blade 323 are formed on both sides of the rotor body 321, respectively, on the left and right sides of the first rotor 320 The first driven grooves 332 and 333 and the second driven are disposed so that the driving blades 322 and 323 of the first rotor 320 are slidably inserted into the outer circumferential surfaces of the rotor bodies 331 and 341. Grooves 342 and 343 are formed, respectively, and the second rotor 330 rotatably provided in the second and third working spaces 312 and 3 provided on the left and right sides of the cylinder block 310, and Between the third rotor 340, the first back pressure space S11 formed between the first rotor 320 and the second rotor 330, and between the first rotor 320 and the third rotor 340.It includes a first operating unit 350 and the second operating unit 360 communicated with the second back pressure space (S12) is formed.

The other configuration of the cylinder block 310 is similar to the cylinder block 110 of the first embodiment described above, and the other configuration of the first rotor 320 is different from the first rotor 120 of the first embodiment described above. The other components of the second rotor 330 and the third rotor 340 are approximately the same as those of the second rotor 130 of the first embodiment, and are similar to the first operating unit 350 and the second. The other configuration of the operation unit 360 is substantially the same as the operation unit 140 of the first embodiment described above. Therefore, detailed description thereof will be omitted. However, in the multi-stage rotary engine according to the present embodiment, combustion gas or steam is simultaneously supplied to a plurality of back pressure spaces, and the plurality of back pressure spaces rotates one drive rotor, thus providing greater torque than the single rotary engine described above. ) Can be obtained.

Another embodiment of the multistage rotary engine according to the present invention is as follows.

That is, the above-described multi-stage rotary engine is a kind of parallel method in which a plurality of back pressure spaces are arranged in a horizontal row and an operation unit is independently connected to each of the plurality of back pressure spaces to increase power. It can be said to be a kind of serial type in which a working unit is connected only to the first back pressure space, so that combustion gas or steam is continuously recycled.

For example, as illustrated in FIG. 15, the multistage rotary compressor according to the present embodiment includes a plurality of single rotary engines 410 and 420 having a different configuration than the operation unit in the single rotary engine described above. Back pressure space (S11) (S12) of the two single rotary engines (410, 420) are sequentially connected, the operation unit 430 only in the most upstream side back pressure space (S11) of the plurality of back pressure space (S11) (S12) ) Is connected. Through this, the discharge passage for discharging the combustion gas or steam from the upstream rotary engine is connected to the inlet of the back pressure space of the next rotary engine by a connecting pipe.

The basic configuration and operational effects of the multistage rotary engine according to the present embodiment as described above are similar to the single rotary engine of the above-described embodiments. However, the multi-stage rotary engine of the present embodiment is supplied to the back pressure space of the most upstream rotary engine and the combustion gas or vapor generated power while rotating the drive rotor is not discharged to the outside air, but the back pressure space of the next rotary engine through the connection pipe 440. It is moved to, and then a series of processes for generating power while the driving rotor of the rotary engine is rotated by the combustion gas or steam that is moved to the back pressure space of the rotary engine to proceed sequentially.

In this way, as the combustion gas and steam are reused several times, the utilization of energy and the use of fuel and water can be reduced, thereby providing an eco-friendly multi-stage rotary engine.

110: cylinder block 111: first operating space
112: second operating space 113: intake vent
114 exhaust port 115 drain port
120: drive rotor (first rotor) 121: first rotor body
122: drive blade 123: drive shaft (first rotation shaft)
130: driven rotor (second rotor) 131: second rotor body
132: driven groove 133: driven shaft (second rotary shaft)
140: operating unit 141: external communication
142: fuel injection nozzle 143: water injection nozzle
144: air supply nozzle 150: air supply unit
151: housing 152: first rolling piston
153: second rolling piston S1: back pressure space
S2: combustion space S3: pumping space

Claims (12)

A cylinder block having a first operating space and a second operating space, the first operating space and the second operating space being partially overlapped with each other;
A drive rotor rotatably received in the first operating space of the cylinder block and having at least one drive blade formed on an outer circumferential surface thereof;
A driven rotor rotatably received in the second working space of the cylinder block, the outer circumferential surface of the cylinder block being in contact with the outer circumferential surface of the driving rotor, and a driven groove being formed in a portion of the outer circumferential surface of the cylinder block so as to seal the driving blade; And
And an operating unit formed between the first operating space and the second operating space to alternately supply combustion gas and steam to a back pressure space for adding the driving rotor to rotate the driving rotor. ,
The operation unit includes a working gas generating unit communicating with the back pressure space and having a combustion space to generate combustion gas and steam; A fuel supply unit supplying the combustion gas generated by burning fuel in the combustion space to the back pressure space; A water supply unit supplying steam generated by evaporating water in the combustion space to the back pressure space; And a supply switching unit for controlling fuel and water to be selectively supplied to the combustion space.
The supply switching unit, the switching shaft is disposed in parallel with the drive rotor or the driven rotor to rotate together with the drive rotor or driven rotor; And a plurality of switching cams coupled to the switching shaft to alternately turn on / off switches provided in the fuel supply unit and the water supply unit. A cylinder block having a first operating space and a second operating space, the first operating space and the second operating space being partially overlapped with each other;
A drive rotor rotatably received in the first operating space of the cylinder block and having at least one drive blade formed on an outer circumferential surface thereof;
A driven rotor rotatably received in the second working space of the cylinder block, the outer circumferential surface of the cylinder block being in contact with the outer circumferential surface of the driving rotor, and a driven groove being formed in a portion of the outer circumferential surface of the cylinder block so as to seal the driving blade; And
And an operating unit formed between the first operating space and the second operating space to alternately supply combustion gas and steam to a back pressure space for adding the driving rotor to rotate the driving rotor. ,
A first oil passage is formed at the center of the driving rotor or the driven rotor, and a second oil passage is formed to penetrate from the first oil passage to the main surface of the driving blade or the driving groove. A cylinder block having a first operating space and a second operating space, the first operating space and the second operating space being partially overlapped with each other;
A drive rotor rotatably received in the first operating space of the cylinder block and having at least one drive blade formed on an outer circumferential surface thereof;
A driven rotor rotatably received in the second working space of the cylinder block, the outer circumferential surface of the cylinder block being in contact with the outer circumferential surface of the driving rotor, and a driven groove being formed in a portion of the outer circumferential surface of the cylinder block so as to seal the driving blade; And
And an operating unit formed between the first operating space and the second operating space to alternately supply combustion gas and steam to a back pressure space for adding the driving rotor to rotate the driving rotor. ,
And a skirt for preventing leakage of combustion gas or steam on a downstream side of the driving blade based on the rotational direction of the driving blade. According to claim 2 or 3, The operation unit,
An operating gas generator communicating with the back pressure space and having a combustion space to generate combustion gas and steam;
A fuel supply unit supplying the combustion gas generated by burning fuel in the combustion space to the back pressure space;
A water supply unit supplying steam generated by evaporating water in the combustion space to the back pressure space; And
And a supply switching unit for controlling fuel and water to be selectively supplied to the combustion space. The method of claim 4, wherein the supply switching unit,
A switching shaft disposed in parallel with the driving rotor or the driven rotor to rotate together with the driving rotor or the driven rotor; And
And a plurality of switching cams coupled to the switching shaft to alternately turn on / off switches provided in the fuel supply unit and the water supply unit. The method of claim 1,
The working gas generating unit is integrally fixed to the cylinder block, the cylinder block is a rotary engine is provided with a working gas supply hole to communicate the combustion space and the back pressure space. The method of claim 1,
The working gas generating unit is fixedly coupled to the outside of the cylinder block, the rotary engine is connected to the combustion space and the back pressure space to the operating gas supply pipe. The method according to any one of claims 1 to 3,
A drive shaft is coupled to the center of the drive rotor, and a driven shaft is coupled to the center of the driven rotor, and a drive gear and a driven gear are respectively provided to the drive shaft and the driven shaft so that the drive gear and the driven gear are engaged with each other. And a rotary engine are coupled to rotate in opposite directions to each other. The method of claim 3,
A first oil passage is formed at the center of the driving rotor or the driven rotor, and a second oil passage is formed to penetrate from the first oil passage to the main surface of the driving blade or the driving groove. 4. The method according to any one of claims 1 to 3,
The cylinder block is connected to an air supply unit for supplying air to the combustion space of the cylinder block, the air supply unit,
Rotating spaces are formed in the cylinder block to be disposed in parallel with the working spaces, and the rotating spaces extend from the driving rotor and the driven rotor to rotate and pump air to be supplied to the combustion space. Rotary engine provided with a rotatable piston. The rotary engine according to any one of claims 1 to 3, wherein at least two or more driven rotors are disposed on both sides of the driving rotor to form at least two back pressure spaces.
Each of the back pressure space multi-stage rotary engine is installed so that the operation unit is connected independently. The rotary engine of any one of claims 1 to 3 is provided with a plurality of back pressure space of each rotary engine is sequentially communicated,
The operating unit is installed in communication with the most upstream back pressure space is a multi-stage rotary engine so that the combustion gas or steam is recycled while moving each rotary engine sequentially.
KR1020100094791A 2010-09-29 2010-09-29 Rotary engine and multiple-stage rotary engine having the same KR101236149B1 (en)

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KR101363932B1 (en) * 2013-03-22 2014-02-19 김기태 Rotary engine
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WO2019086924A1 (en) * 2017-10-30 2019-05-09 Balasooriya Neel Rupasinghe Rotary mechanism
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