liquid nitrogen engine

Abstract

To provide a liquid nitrogen engine having higher efficiency and longer life. [Solution] The present invention is a liquid nitrogen engine comprising: a cylindrical cylinder body 10 having a ring groove 104, a shaft hole 103, an explosion chamber 100, a nitrogen gas chamber 101, and a spark plug 102; and a cylindrical flywheel 11 pivotally attached to the cylinder body 10, located on the side of the cylinder body 10 that does not have the ring groove 104, and having a ring-shaped groove 111, a rotating shaft 110, an inner guide hole 112, and an outer guide rail 113. Because the present invention uses liquid nitrogen, it has very low carbon dioxide emissions, and because nitrogen gas is non-flammable, it can be stored as a safe fuel for carriers (vehicles or aircraft). The present invention can operate at a lower, controlled temperature (below 100°C), resulting in higher efficiency and a longer lifespan.

Description

[Technical Field]

[0001] The present invention relates to a liquid nitrogen engine, and more particularly to a liquid nitrogen engine that is low cost, highly efficient, simple in structure, and environmentally friendly.

[0002] Since the internal combustion engine was invented in the 18th century, much of human life has changed. The internal combustion engine has undergone a long period of development, and the engine of the 18th century is nowhere near what it is today.

[0003] Internal combustion engines are divided into two types: circulating combustion and continuous combustion. Circulating combustion engines include reciprocating piston internal combustion engines and rotor engines, while continuous combustion engines include gas turbine engines and jet engines.

[0004] Reciprocating piston internal combustion engines are often used in automobiles, motorcycles, and other motor vehicles and can use fuels such as gasoline, diesel, renewable fuels, biodiesel, petroleum fuels, or natural gas. The intake, compression, combustion, and exhaust flows between each cylinder, propelling the pistons located inside the cylinders, generating kinetic energy through reciprocating motion. When used in automobiles, this kinetic energy drives the vehicle's tires. Reciprocating piston internal combustion engines employ a cylinder, crankshaft, and piston design, but this design releases incompletely burned fuel into the atmosphere, resulting in air and environmental pollution. Reciprocating piston internal combustion engines are one of the main causes of urban air pollution.

[0005] A rotor engine is an eccentric mechanism driven by a rotor piston instead of a crankshaft. Rotor engines are currently used in aircraft and automobiles, but are few in number. As the rotor rotates, its three vertices form three separate combustion chambers along the cylinder wall, and the eccentric mechanism constantly changes the volume of each combustion chamber. This effect is similar to the up-and-down movement of the piston in a reciprocating piston internal combustion engine. With each revolution of the rotor, each combustion chamber completes one combustion cycle. Because the operating principle of a rotor engine is similar to that of a reciprocating piston internal combustion engine, all of the disadvantages of a reciprocating piston internal combustion engine also apply to rotor engines.

[0006] Gas turbine engines, which are continuous combustion internal combustion engines, are widely used on ships. The various states of circulation occur within spatially separated components connected to each other through flow guides, and the processes of fuel supply, combustion, and exchange are continuous. Because gas turbine engines are also internal combustion engines that use fossil fuels, they suffer from the drawback of incomplete fuel combustion. If this incompletely burned fuel is released into the atmosphere, it can cause significant air and environmental pollution.

[0007] Jet engines are widely used in aircraft, and their combustion process is continuous, with thrust being generated by the high-pressure airflow produced by the combustion being expelled outward. The exhaust gases emitted from jet engines create contrails and suspended particles in the sky, and some scientists believe that contrails and suspended particles are one of the factors causing current climate change.

[0008] Internal combustion engines have made rapid progress over more than 200 years of development, but with growing awareness of environmental protection, their shortcomings, such as air pollution and environmental pollution caused by incomplete combustion, and low combustion efficiency, have come under criticism.

[0009] As mentioned above, conventional internal combustion engines have problems such as being environmentally unfriendly and having low efficiency. How to come up with new ideas to provide environmentally friendly and efficient internal combustion engines has become an urgent project for improvement and innovation in the current industry. Summary of the Invention

[0010] In view of the shortcomings of the prior art mentioned above, we urgently sought to improve and innovate, and after many years of research and experimentation, we finally succeeded in developing the liquid nitrogen engine according to the present invention.

[0011] The present invention relates to a liquid nitrogen engine having a cylinder body and a flywheel, the cylinder body being cylindrical, having a ring groove located on one side of the cylinder body, an axial hole located in the center of the cylinder body, a plurality of explosion chambers provided inside the cylinder body and surrounded by the periphery of the cylinder body and adjacent to the ring-shaped groove, a plurality of nitrogen gas chambers provided inside the cylinder body and adjacent to the ring-shaped groove, adjacent to the explosion chambers and installed at intervals on the periphery of the cylinder body, and a plurality of spark plugs respectively provided in the explosion chambers, the flywheel being cylindrical, The liquid nitrogen engine has a flywheel pivotally attached to a cylinder body and positioned on one side of the cylinder body that does not have a ring groove, a ring-shaped groove provided at one end of the flywheel facing the nitrogen gas chamber and the explosion chamber, a rotating shaft located on one side of the flywheel and drilled into a shaft hole, the end of the rotating shaft protruding from the shaft hole being provided with an axial bearing, a gasket and a locking member, a plurality of inner guide holes provided inside the flywheel, inclined at a specific angle by the ring-shaped groove and penetrating the flywheel, and a plurality of outer guide rails provided on the outer surface of the flywheel and parallel to the inner guide holes.

[0012] In one embodiment, the liquid nitrogen engine further includes a cover that is a hollow cylindrical body connected to the cylinder body and provided as a cover on the outside of the flywheel, the cover having openings at both ends.

[0013] In one embodiment, each explosion chamber has a gas inlet, an exhaust gas outlet facing the link-shaped groove, an ignition port in which the spark plug is installed, an intake valve provided at the gas inlet, and an exhaust valve provided at the exhaust gas outlet.

[0014] In one embodiment, each nitrogen gas chamber has an intake port, an exhaust port facing the ring-shaped groove, and a nozzle provided at the intake port.

[0015] In one embodiment, the specific angle is between 30 degrees and 60 degrees.

[0016] In one embodiment, the shaft hole has a bearing at each end, and the rotating shaft passes through the bearings and the shaft hole so as to pivotally mount the flywheel to the cylinder body.

[0017] In one embodiment, the flywheel further includes a rotation axis on the other side thereof.

[0018] As described above, the present invention can be operated at a relatively low and controlled temperature (below 100°C) by using liquid nitrogen, and the present invention does not require a piston and crankshaft, and does not require lubrication, so there is no need for an oil reservoir (or sump). Therefore, the present invention has a simple mechanical design with a low coefficient of friction, which results in fewer problems, lower operating temperatures, higher efficiency, and a longer lifespan.

[0019] The advantage of using liquid nitrogen is that it produces very little carbon dioxide emissions, and in terms of safety, nitrogen gas is not flammable, so it can be stored as a safe fuel for carriers (vehicles and aircraft).Since liquid nitrogen is stored at low temperatures, it does not require expensive high-pressure tanks and only requires thermal protection, making it convenient to convert gas stations using existing refueling infrastructure.

[0020] The present invention can lower the temperature of the liquid nitrogen engine by absorbing heat when the liquid nitrogen evaporates, i.e., by absorbing thermal energy when it is converted from liquid to gas, so the present invention does not require the design of a heat dissipation mechanism such as a fan, tank pump, or tank.

[0021] The liquid nitrogen engine of the present invention can be made larger or smaller in size as required, and the diameter of each explosion chamber and each nitrogen gas chamber can be limited to approximately 2 cm or less according to actual requirements, and the number of explosion chambers and each nitrogen gas chamber can be changed according to actual requirements as long as the cylinder body can accommodate the number. [Brief explanation of the drawings]

[0022] [Figure 1] 1 is an exploded perspective view of a liquid nitrogen engine according to the present invention. FIG. [Figure 2] 1 is a cross-sectional schematic view of a liquid nitrogen engine according to the present invention. [Figure 3] FIG. 2 is a perspective view of a cylinder body according to the present invention. [Figure 4] FIG. 2 is a schematic diagram of a fuel supply system. [Figure 5] 1 is a perspective view of a flywheel according to the present invention; [Figure 6] 1 is a partial cross-sectional schematic view of a flywheel according to the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0023] Please refer to Figures 1 and 2. Figure 1 is an exploded perspective view of a liquid nitrogen engine according to the present invention. Figure 2 is a schematic cross-sectional view of a liquid nitrogen engine according to the present invention. As shown in Figures 1 and 2, the liquid nitrogen engine according to the present invention comprises a cylinder body 10, a flywheel 11, and a cover 12.

[0024] Fig. 3 is a perspective external view of a cylinder body according to the present invention. As shown in Fig. 3, the cylinder body 10 is cylindrical and has a plurality of explosion chambers 100, a plurality of nitrogen gas chambers 101, and a plurality of spark plugs 102. The explosion chambers 100 are provided inside the cylinder body 10 and are located on the periphery of the cylinder body 10. The nitrogen gas chamber 101 is provided inside the cylinder body 10, and the explosion chamber 100 and the nitrogen gas chamber 101 are adjacent to each other and installed at an interval on the periphery of the cylinder body 10.

[0025] The explosion chamber 100 includes a gas inlet 1000, an exhaust gas outlet 1001, an ignition port 1002 having a spark plug 102, an intake valve 1003 which is a one-way valve provided at the gas inlet 1000, and an exhaust valve 1004 which is a pressure valve provided at the exhaust gas outlet 1001. In one embodiment, the gas inlet 1000 is coupled to a fuel supply system (not shown) that supplies fuel such as gasoline, ethanol, gas (liquefied petroleum gas), alcohol, or flammable gas (hydrogen) to the explosion chamber 100.

[0026] The figure is a schematic diagram of a fuel supply system. As shown in Figure 4, the fuel supply system includes a blower 20 connected to a venturi tube 21, and the venturi tube 21 and the fuel tank 22 connected to a gas inlet 1000 and a fuel tank 22, respectively. The venturi tube 21 and the fuel tank 22 are designed as a conventional carburetor.

[0027] The nitrogen gas chamber 101 has an inlet 1010, an outlet 1011, and a nozzle 1012 attached to the inlet 1010 and connected to a liquid nitrogen supply system. The liquid nitrogen supply system may be designed like a fuel supply system, or it may be a combination of a supercharger and a liquid nitrogen tank.

[0028] To further explain the liquid nitrogen supply system, the present invention can generate high pressure (minimum 150 psi) to pump liquid nitrogen using a small volume gear pump. Because the liquid nitrogen engine uses only a small amount of liquid nitrogen at any given time, a small diameter pipeline (e.g., 1mm copper pipe) is required to connect the gear pump to the cylinder body 10, but backflow is not necessary because the gear pump has the function of blocking reverse pressure.

[0029] The cylinder body 10 further has a shaft hole 103 at the center thereof, with bearings 1030 at both ends.

[0030] A ring groove 104 is further provided on one side of the cylinder body 10 for the purpose of reducing the weight and volume of the cylinder body 10 so as to have an effect of making the cylinder body 10 easier to heat. The ring groove 104 is adjacent to the explosion chamber 100 and the nitrogen gas chamber 101.

[0031] Please refer to Figures 5 and 6. Figure 5 is a perspective view of a flywheel according to the present invention. Figure 6 is a partial cross-sectional schematic view of a flywheel according to the present invention. As shown in Figures 5 and 6, the flywheel 11 is cylindrical and includes at least one rotating shaft 110, one ring-shaped groove 111, a plurality of inner guide holes 112, and a plurality of outer guide rails 113. The rotating shaft 110 passes through a bearing 1030 and the shaft hole 103 to pivotally mount the flywheel 11 to the cylinder body 10. The rotating shaft 110 has an axial bearing 114 at its end protruding from the shaft hole 103, and this end further has a screw thread 116 and a locking member 115. The protruding end of the rotating shaft 110 passes through the axial bearing 114, and the locking member 115 engages with the screw thread 116 to pivotally mount the flywheel 11 to the cylinder body 10. Gaskets 117, which are consumables made of a superhard material, are provided on both sides of the axial bearing 114. The axial bearing 114 and the bearing 1030 support the rotating shaft 110 while maintaining its center position. To support the rotating shaft 110, a ring-shaped groove 111 is provided at one end of the flywheel 11, facing the exhaust gas outlet 1001 and the exhaust port 1011 of the cylinder body 10. An inner guide hole 112 is provided inside the flywheel 11 and passes through the flywheel 11 at an inclined angle by the ring-shaped groove 111. An outer guide rail 113 is provided on the outer surface of the flywheel 11 and is parallel to the inner guide hole 112, or the outer guide rail 113 is inclined at the aforementioned specific angle from one end of the flywheel 11 to the other. The specific angle is 30 to 60 degrees, preferably 45 degrees.

[0032] In one embodiment, one side of the flywheel 11 has a rotating shaft 110, which can be connected to a reduction gearbox to further output power from the liquid nitrogen engine of the present invention, and in another embodiment, each side of the flywheel 11 has a rotating shaft 110, and either rotating shaft 110 can be connected to a reduction gearbox to increase the output power.

[0033] The cover 12 is a hollow cylinder with openings at both ends that is provided to cover the outside of the flywheel 11. The cover 12 improves engine efficiency and provides protection for the flywheel 11.

[0034] The blower 20 sends supercharged air into the venturi tube 21. When the supercharged air passes through the area where the diameter of the venturi tube 21 is constricted, the supercharged air is affected by the constricted diameter of the venturi tube 21, and its flow velocity increases, generating a vacuum suction force. This vacuum suction force sucks fuel out of the fuel tank 22 and mixes with air to form an oil-gas mixture, which then enters the explosion chamber 100 through the gas inlet 1000. This mixture is mixed in a specific ratio, and a preferred specific ratio is 1 (fuel):14.5 (air). Because the intake valve 1003 is a one-way valve, the oil-gas mixture does not flow back from the explosion chamber 100 to the venturi 21.

[0035] The spark plug 102 ignites the oil and gas mixture in the explosion chamber 100, causing the oil and gas mixture to explode, creating an environment of high temperature, exhaust, and high pressure, which heats the cylinder body 10. Because the exhaust valve 1004 is a pressure valve, high pressure pushes out the exhaust valve 1004, opening the exhaust gas outlet 1001, and the exhaust gas is discharged through the exhaust gas outlet 1001 into the link-shaped groove 111.

[0036] The exhaust gas enters the inner guide hole 112 from the ring-shaped groove 111 and flows along the angle of the inner guide hole 112. This pushes the flywheel 11, causing the exhaust gas to dissipate to the outside through the gap between the flywheel 11 and the cylinder body 10, but the cover 12 prevents the dispersed exhaust gas from flowing to the outside. The dispersed exhaust gas is forced into the outer guide rail 113 so as to flow along the inclination angle of the outer guide rail, thereby strengthening the pressure on the flywheel 11.

[0037] When the exhaust gas is discharged from the explosion chamber 100, the pressure in the explosion chamber 100 returns to normal, and the exhaust valve 1004 closes the exhaust gas outlet 1001. In the explosion chamber 100, the above-described intake, explosion, and exhaust operations are repeated.

[0038] The temperature of the cylinder body 10 is detected by a temperature sensor (not shown) installed inside the cylinder body 10, and when the temperature of the cylinder body 10 is heated to a temperature sufficient to convert nitrogen from liquid to gas, the liquid nitrogen supply system supplies liquid nitrogen to the nitrogen gas chamber 101, and the liquid nitrogen enters the nitrogen gas chamber 101 through the nozzle 1012. As a result, the liquid nitrogen converts from liquid to gas due to the high temperature, and the nitrogen gas is discharged from the nitrogen gas chamber 101 through the exhaust port 1011. Since nitrogen converts from liquid to gas, it itself has a considerable amount of air pressure, so the high-pressure nitrogen gas enters the inner guide hole 112 through the ring-shaped groove 111 and flows along the inclination angle of the inner guide hole 112, pushing the flywheel 11.

[0039] As mentioned above, the temperature sensor may be configured to control the gear pump, so that liquid nitrogen is pumped into the cylinder body 10 when the temperature of the cylinder body 10 rises above a set point.

[0040] When the nitrogen gas is released to the outside through the gap between the flywheel 11 and the cylinder body 10, the cover 12 prevents the nitrogen gas from flowing to the outside, forcing the nitrogen gas into the external guide rail 113, and causing the nitrogen gas to flow along the inclination angle of the external guide rail, thereby strengthening the pressure on the flywheel 11.

[0041] When the liquid nitrogen described above enters the nitrogen gas chamber 101 at a very high temperature, it is converted from a liquid state to a gaseous state and then exhausted, and this operation is carried out continuously.

[0042] The gearbox / reduction gearbox is driven by the flywheel 11 while rotating at high speed, but in one embodiment, when the invention is applied to an automobile, the rotating shaft 110 can be coupled with a reduction gearbox (or turbine box) to reduce the rotational speed, and in another embodiment, when the invention is applied to an aircraft, there is no need to use a reduction gearbox because the aircraft engine has a high rotational speed.

[0043] The reduction gearbox or high speed turbine can be connected to a speed sensor (magnet or optical deflector) to monitor the liquid nitrogen engine of the present invention.

[0044] The liquid nitrogen engine of the present invention comprises a cylinder body 10 pivotally connected to a flywheel 11, the flywheel 11, and a cover 12 connected to the cylinder body 10 and covering the outside of the flywheel 11. Gas passes through a pipe, pushing open an intake valve 1003, and enters the explosion chamber 100 of the cylinder body 10 through a gas inlet 1000. The gas in the explosion chamber 100 is ignited by a spark plug 102, and the resulting gas explodes, pushing out an exhaust valve 1004 and being discharged from an exhaust gas outlet 1001. The exhaust gas enters the inner guide hole 112 through the ring-shaped groove 111 and flows along the angle of the inner guide hole 112, pushing the flywheel 11. When the exhaust gas is released to the outside through the gap between the flywheel 11 and the cylinder body 10, the released exhaust gas, which is forced by the cover 12 to flow along the inclination angle of the flywheel 11, is forced into the outer guide rail 113, thereby strengthening the pressure on the flywheel 11. When the exhaust gas is discharged from the explosion chamber 100, the pressure in the explosion chamber 100 returns to normal, and the exhaust valve 1004 closes the exhaust gas outlet 1001. The gas explosion is used to heat the cylinder body 10.

[0045] All or both ends of the cylinder body 10 must be fired simultaneously to prevent the symmetrical explosion chambers 100 from causing unbalanced vibration of the flywheel 11. All nozzles 1012 are connected via pipelines, and the firing frequency of the spark plugs 102 determines the rotation speed of the flywheel 11.

[0046] The temperature of the cylinder body 10 is detected by a temperature sensor, and if the temperature of the cylinder body 10 is not sufficient to change the nitrogen from liquid to gas, the cylinder body 10 continues to be heated until the temperature of the cylinder body 10 is sufficient to change the nitrogen from liquid to gas.

[0047] When the temperature sensor detects that the temperature of the cylinder body 10 is high enough to cause the nitrogen to change from liquid to gas, the liquid nitrogen supply system supplies liquid nitrogen to the nitrogen gas chamber 101, which then enters the nitrogen gas chamber 101 through the nozzle 1012. The high temperature causes the liquid nitrogen to transform from liquid to gas, which is then discharged from the nitrogen gas chamber 101 through the exhaust port 1011. Since the nitrogen gas has a significant air pressure, it enters the inner guide hole 112 through the ring-shaped groove 111 and flows along the inclination of the inner guide hole 112, pushing the flywheel 11. When the nitrogen gas dissipates to the outside through the gap between the flywheel 11 and the cylinder body 10, the cover 12 prevents the nitrogen gas from flowing outward, forcing it into the outer guide rail 113. The nitrogen gas flows along the inclination of the outer guide rail, thereby strengthening the pressure on the flywheel 11.

[0048] The liquid nitrogen engine of the present invention has a cylindrical flywheel 11 and a cylindrical cylinder 10 pivotally connected to each other, and converts nitrogen from liquid to gas by increasing the temperature of the cylinder body 10. The flywheel 11 can be pushed by both nitrogen gas and exhaust gas, and the rotating flywheel 11 drives a gearbox / reduction gearbox. This type of gearbox / reduction gearbox can be used in automobiles, aircraft, etc. In one embodiment, a rotating shaft 110 may be provided on each side of the flywheel 11, with one rotating shaft 110 pivotally connecting the flywheel 11 to the cylinder body 10 and the other rotating shaft 110 connecting a gearbox / reduction gearbox or other transmission device. In one embodiment, only one side of the flywheel 11 is provided with a rotating shaft 110 that can pivotally connect the flywheel 11 to the cylinder body 10 and that can further connect a gearbox / reduction gearbox or other transmission device. As mentioned above, the liquid nitrogen engine of the present invention can be designed in various ways according to actual needs, and the dimensions of the liquid nitrogen engine of the present invention can be increased or decreased according to needs. The diameter and number of each explosion chamber 100 and each nitrogen gas chamber 101 can also be increased or decreased according to actual needs.

[0049] The inner guide hole 112 or the outer guide rail 113 is inclined at a specific angle designed to allow the exhaust gas or nitrogen gas to push the flywheel 11 with maximum efficiency, the specific angle being between 30 and 60 degrees.

[0050] Since nitrogen absorbs a large amount of heat when it transforms from a liquid to a gas, the heat of the cylinder body 10 is absorbed during the nitrogen transformation, so the present invention does not require the use of cooling equipment such as fans, tank pumps, or tanks.

[0051] As described above, the liquid nitrogen engine of the present invention can use a wide variety of fuels, such as gasoline, ethanol, liquefied petroleum gas, alcohol, and hydrogen, making the function of the present invention similar to that of some internal combustion engines. The fuel heats the cylinder body 10, and when the cylinder body 10 reaches a certain temperature, the liquid nitrogen enters the nitrogen gas chamber 101 at the appropriate time.

[0052] Moreover, by adjusting the locking member 115, the gap between the flywheel 11 and the cylinder body 10 can be made less than 1 mm, so that the mechanical friction force of the present invention is very low. Even the dissipated gas (nitrogen gas or exhaust gas) is recaptured by the cover 12.

[0053] The present invention has higher efficiency and longer life because it can operate at lower, controlled temperatures (below 100°C), and its mechanical design is simpler and less prone to problems. Because the present invention does not use a piston and crankshaft, it does not require lubrication and does not have an oil sump.

[0054] The manufacturing cost of the present invention is low, and the dimensions of the present invention can be increased or decreased as required. The diameter of each explosion chamber 100 and each nitrogen gas chamber 101 may be limited to approximately 2 cm or less, and the number of explosion chambers 100 and each nitrogen gas chamber 101 may be any number that the cylinder body 10 can accommodate.

[0055] The present invention uses liquid nitrogen, which produces very low carbon dioxide emissions and is non-flammable, making it a safe fuel for carriers (vehicles and aircraft). Liquid nitrogen is convenient because it does not require expensive high-pressure tanks and can be converted into gas stations using existing refueling infrastructure with thermal protection. Liquid nitrogen is a by-product of the oxygen manufacturing industry, and because it contains four parts nitrogen gas for every one part oxygen obtained from the air, nitrogen gas is a low-cost fuel commodity.

[0056] The present invention allows the liquid nitrogen engine to automatically adjust the supply of liquid nitrogen and internal combustion fuel once the liquid nitrogen engine reaches a certain temperature in order to obtain better fuel economy.

[0057] In the present invention, liquid nitrogen reduces the temperature of the liquid nitrogen engine by absorbing heat as it evaporates, so there is no need for a fan, tank pump, or tank.The ignition system of the present invention is simple and the horsepower output can be changed by changing the ignition frequency. [Explanation of symbols]

[0058] 10 Cylinder body 100 Explosion Chamber 1000 Gas inlet 1001 Exhaust gas outlet 1002 Ignition port 1003 Intake valve 1004 Exhaust valve 101 Nitrogen gas chamber 1010 Air intake 1011 Exhaust port 1012 nozzle 102 Spark plug 103 Shaft hole 1030 Bearing 104 Ring groove 11 Flywheel 110 Rotating shaft 111 Ring-shaped groove 112 Inner guide hole 113 External guide rail 114 Axial bearing 115 Locking member 116 threads 117 Gasket 12 Cover 20 Blower 21 Venturi tube 22 Fuel tank

Claims

1. A nitrogen engine, A cylindrical cylinder body, a ring groove located on one surface of the cylinder body; a shaft hole located at the center of the cylinder body; a plurality of explosion chambers provided inside the cylinder body, surrounded by the periphery of the cylinder body, and adjacent to the ring groove; a plurality of nitrogen gas chambers disposed inside the cylinder body and adjacent to the ring groove, the explosion chambers being adjacent to each other and spaced apart from each other around the periphery of the cylinder body; a cylinder body having a plurality of spark plugs respectively provided in the plurality of explosion chambers; A cylindrical flywheel pivotally attached to the cylinder body and positioned on one side of the cylinder body that does not have a ring groove, at least one rotating shaft positioned on one side of the flywheel and inserted into the shaft hole, the end of which protrudes from the shaft hole being provided with an axial bearing, a gasket and a locking member; a ring-shaped groove provided at one end of the flywheel and facing the plurality of nitrogen gas chambers and the plurality of explosion chambers; a plurality of inner guide holes provided inside the flywheel, inclined at a specific angle by the ring-shaped groove, and passing through the flywheel; a flywheel having a plurality of external guide rails provided on an outer surface of the flywheel and parallel to the plurality of internal guide holes.

2. 2. The nitrogen engine according to claim 1, further comprising a cover which is a hollow cylindrical body connected to the cylinder body and provided to cover the outside of the flywheel, the cover having openings at both ends.

3. 2. The nitrogen engine according to claim 1, wherein each of the plurality of explosion chambers has a gas inlet, an exhaust gas outlet facing the ring-shaped groove, an ignition port for installing the spark plug, an intake valve provided at the gas inlet, and an exhaust valve provided at the exhaust gas outlet.

4. Each of the plurality of nitrogen gas chambers has an intake port and an exhaust port facing the ring-shaped groove.

2. The nitrogen engine of claim 1, further comprising a nozzle disposed in the intake port.

5. 2. The nitrogen engine of claim 1, wherein the specific angle is between 30 degrees and 60 degrees.

6. 2. The nitrogen engine according to claim 1, wherein a bearing is provided at each end of the shaft hole, and the rotating shaft passes through the bearings at both ends and the shaft hole so as to pivotally mount the flywheel to the cylinder body.

7. 2. The nitrogen engine according to claim 1, further comprising a rotating shaft on the other side of the flywheel.

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