Internal combustion engine

By decomposing fuel into hydrogen and oxygen within the cylinder of an internal combustion engine, forming an internal circulation combustion process, the problems of exhaust emissions and continuous fuel replenishment in existing internal combustion engines are solved, achieving zero exhaust emissions and high energy efficiency.

CN121875829APending Publication Date: 2026-04-17范军飞
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
范军飞
Filing Date
2023-08-20
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing internal combustion engines burn petroleum, emitting exhaust gases, requiring constant refueling, and are not environmentally friendly.

Method used

After combustion in the cylinder of an internal combustion engine, the fuel is compressed and decomposed into hydrogen and oxygen by the piston, forming an internal circulation. Through the water electrolysis device, the fuel is repeatedly circulated and burned in the cylinder to do work. The heat energy of the hydrogen-oxygen mixture is used to drive the piston, realizing the self-circulation supply of fuel.

Benefits of technology

It achieves zero emissions, energy conservation and environmental protection, and self-circulating fuel supply, reducing the need for external fuel addition and improving energy utilization efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention belongs to the manufacturing industry of internal combustion engines and is particularly suitable for improvement of existing internal combustion engines, most of the existing internal combustion engines combust petroleum, exhaust gas, consume a large amount of unduplicated energy and bring destructive pollution to the earth, and the internal combustion engines combust hydrogen and oxygen, so that the environment is protected. The generated steam is electrolyzed in the cylinder to obtain hydrogen and oxygen which are combusted in the cylinder again to do work, fuel does not need to be added to the internal combustion engine continuously and repeatedly, waste gas emission is avoided, and energy conservation and environment protection are achieved.
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Description

Technical Field This invention belongs to the internal combustion engine manufacturing industry and is particularly applicable to the improvement of existing internal combustion engines. Background Technology Most existing internal combustion engines burn petroleum, emitting exhaust gases and requiring continuous refueling. In contrast, the internal combustion engine of this invention burns hydrogen with oxygen as an auxiliary fuel. The water vapor produced is electrolyzed in the cylinder to obtain hydrogen and oxygen, which are then burned again in the cylinder to perform work. This eliminates the need for continuous refueling of the internal combustion engine. Only a small amount of fuel needs to be added when necessary to maintain the engine's operation. There are no exhaust emissions, making it energy-saving and environmentally friendly. Summary of the Invention The technical solution of the present invention is based on the improvement of existing internal combustion engine technology. After the fuel of the internal combustion engine is burned and does work in the cylinder, it is not discharged outside the internal combustion engine body, but continues to be compressed by the piston in the internal combustion engine cylinder, and decomposed into hydrogen and oxygen to burn and do work in the internal combustion engine cylinder. The internal combustion engine repeatedly decomposes high-temperature water vapor in the cylinder to obtain hydrogen and oxygen to supply the internal combustion engine for combustion and work. Experimental Example 1 of the technical solution of this invention is an improvement on an existing four-cylinder four-stroke internal combustion engine. The exhaust pipe of the first cylinder is connected to the intake pipe of the third cylinder in a closed manner; the intake pipe of the first cylinder is connected to the exhaust pipe of the second cylinder in a closed manner; the intake pipe of the second cylinder is connected to the exhaust pipe of the fourth cylinder in a closed manner; and the exhaust pipe of the third cylinder is connected to the intake pipe of the fourth cylinder in a closed manner. Corresponding cylinders are connected and closed to form a four-cylinder four-stroke internal combustion engine with closed exhaust and intake ports. Each cylinder has a hydrogen injection port and an oxygen injection port, a spark plug, and an electrolytic water device. The positive and negative terminals of the DC power supply are connected. The internal circulation four-cylinder four-stroke internal combustion engine has no exhaust or intake ports. When starting the internal circulation four-cylinder four-stroke internal combustion engine, hydrogen and oxygen are sequentially injected into the cylinders where the pistons are at the end of their compression stroke, forming a hydrogen-oxygen mixture. The spark plug ignites the mixture, causing it to immediately combust and generate a large amount of heat energy, pushing the piston to do work. The resulting water vapor is discharged into the next cylinder in its intake stroke. This cylinder draws in the heat-containing water vapor and immediately compresses it until the piston reaches the end of its compression stroke. At this point, the positive and negative terminals of the water electrolysis device are immediately connected to the power supply. The hot water vapor is then heated under high temperature and pressure conditions. The water vapor is instantly electrolyzed into hydrogen and oxygen, forming a mixture that immediately combines and burns, generating a large amount of heat to drive the piston and produce water vapor, which is then discharged into the next cylinder in its intake stroke. In a four-cylinder, four-stroke internal combustion engine, the four cylinders sequentially operate in an internal circulation intake and exhaust state. Each cylinder can continuously compress, electrolyze, and ignite the water vapor in its cylinder to generate work, which is then discharged and re-inhaled for electrolysis and ignition. This forms a recyclable fuel supply cycle, eliminating the need for injecting hydrogen and oxygen into the cylinders. The internal circulation four-stroke, four-cylinder internal combustion engine begins to form an internal circulation fuel supply, requiring no continuous external fuel addition. The water vapor in the cylinder contains a large amount of heat energy, and the water molecules are in a highly active and unstable state. Only a small amount of external electrical energy is needed to ionize the water molecules to produce hydrogen and oxygen molecules. Therefore, only a small amount of electrical energy is needed for water vapor electrolysis in the cylinder. The water vapor circulates within the cylinder, and the energy consumption is very small. Thus, the heat energy can be absorbed and utilized by mechanical energy to the maximum extent. The piston in the cylinder is under positive and negative pressure during exhaust and intake, and under pressure during power and compression. Each piston in the cylinder can move up and down reciprocally. The mechanical structure design is reasonable. This technology is also applicable to single-cylinder internal combustion engines and multi-cylinder internal combustion engines.

[0001] For a single-cylinder internal combustion engine, the exhaust port can be directly connected to the intake port, or the exhaust port and intake port can be directly sealed. For a multi-cylinder internal combustion engine, the exhaust port and intake port can also be directly sealed, allowing the fuel to burn inside the cylinder. After power is done, the water vapor is compressed and decomposed again to serve as fuel for the internal combustion engine to do power.

[0002] The structure of this invention is an improvement on the existing multi-cylinder four-stroke internal combustion engine and single-cylinder internal combustion engine mechanisms. Water electrolysis is also a current technology. This internal combustion engine makes full use of the above-mentioned technical principles and uses them rationally to produce a new type of internal combustion engine that is more energy-efficient and environmentally friendly.

[0003] Experimental Example 2 of this invention connects the exhaust port and intake port of a single-cylinder internal combustion engine in the existing technology of single-cylinder internal combustion engines. The high-temperature water vapor after the work is done in the cylinder returns to the cylinder through the exhaust port and intake port, is recompressed by the piston, and decomposes into hydrogen and oxygen to do work in the cylinder of the internal combustion engine, pushing the piston. In this way, the high-temperature water vapor is repeatedly used to decompose into hydrogen and oxygen to do work. Attached Figure Description The following is a further explanation with reference to the accompanying drawings.

[0004] Figure 1 This is a schematic diagram of the four-cylinder arrangement of the four-cylinder four-stroke internal combustion engine of the present invention.

[0005] Figure 2 , Figure 3 , Figure 4 Similarly, this is a schematic diagram of the arrangement of the four-cylinder, four-stroke internal combustion engine of the present invention.

[0006] Figure 5 This is a schematic diagram of the internal structure of the four-cylinder, four-stroke internal combustion engine of the present invention. Figure 6 This is a schematic diagram of the single-cylinder four-stroke internal combustion engine of the present invention.

[0007] In the diagram, 1. Piston, 2. Cylinder, 3. Exhaust port, 4. Intake port, 5. Spark plug, 6. Hydrogen injector, 7. Negative terminal of power supply, 8. Oxygen injector, 9. Positive terminal of power supply, 10. Valve. Detailed Implementation

[0008] exist Figure 1 In the process, the fourth cylinder draws in the gas discharged from the third cylinder, the second cylinder compresses the gas, and the first cylinder performs power. The piston pressure in the four cylinders cancels out and balances out, so the pistons in all four cylinders can reciprocate normally.

[0009] Figure 2 In the middle, the third cylinder draws in the exhaust gas from the first cylinder, the second cylinder performs the power stroke, and the fourth cylinder is in the compression stroke. The internal and external pressures of the pistons in the four cylinders cancel each other out, allowing the pistons in the four cylinders to reciprocate.

[0010] Figure 3 In the process, the first cylinder draws in the exhaust gas from the second cylinder, the third cylinder compresses the air, and the fourth cylinder performs the power stroke. The pressure inside and outside the pistons of the four cylinders cancels each other out, allowing the pistons in the four cylinders to reciprocate.

[0011] Figure 4In the process, the second cylinder draws in the gas expelled from the fourth cylinder, the third cylinder performs power, and the first cylinder performs compression. The internal and external pressures of the pistons in the four cylinders cancel each other out, allowing the pistons in the four cylinders to reciprocate.

[0012] exist Figure 5 In the middle, piston ① is at the end of compression and at the beginning of power stroke. A certain proportion of hydrogen and oxygen are simultaneously injected through hydrogen injector ⑧ and oxygen injector ⑥, immediately producing a combustible mixture. Spark plug ⑤ ignites the mixture, causing it to explode and generate a large amount of heat, pushing piston ① to do work. After piston ① has done work, the gas is discharged through exhaust pipe ③. This gas, containing a large amount of heat, is discharged into another cylinder during the intake stroke. Figure 1 , Figure 2 , Figure 3 , Figure 4 Specifically, when the piston ① in the cylinder compresses the gas to the end of the compression stroke, the positive and negative terminals ⑦ of the power supply of the water electrolysis device in the cylinder discharge and electrolyze the water gas in a high temperature and high pressure state, and obtain hydrogen and oxygen. The hydrogen and oxygen combine and burn in the cylinder to generate heat energy to drive the piston to do work. The generated water gas is then absorbed, compressed, decomposed, combined and burned in the next cylinder to do work, and so on, in a continuous cycle. Figure 6 In this invention, the intake pipe ③ and exhaust pipe ④ of the single-cylinder four-stroke internal combustion engine are connected and closed. The cylinder contains a hydrogen injection pipe ⑥ and an oxygen injection pipe ⑧, and a positive terminal ⑨ and a negative terminal ⑦ of the electrolysis device. When the single-cylinder four-stroke internal combustion engine is started, hydrogen and oxygen are injected into the cylinder when the piston is at the end of the compression stroke. The spark plug ignites the hydrogen and oxygen mixture, which burns and does work to push the piston. Under the action of inertia, the piston reciprocates and discharges water vapor outside the cylinder into the exhaust pipe. When the piston reciprocates and enters the intake stroke under the action of inertia, it draws in the water vapor that was just discharged from the cylinder into the exhaust pipe. When the piston begins the compression stroke and compresses the water vapor to the end, the positive and negative terminals of the electrolysis device are energized to electrolyze the water vapor to obtain hydrogen and oxygen. The hydrogen and oxygen immediately combine and burn to generate heat energy to do work. The gas is discharged from the exhaust pipe and stored in the pipe, and then drawn in again by the next piston stroke to do work.

[0013] When the four-cylinder four-stroke internal combustion engine of this invention starts, a combustible mixture of hydrogen and oxygen is sequentially injected into each cylinder. The mixture is ignited in each cylinder, generating power and driving the piston. Gas discharged from one cylinder is drawn into the next corresponding cylinder, electrolyzed and ignited again, generating power and driving the piston. When the injection of hydrogen and oxygen stops, the engine operates in an internal fuel circulation supply state. The piston is continuously propelled by the heat energy generated from the combustion of the hydrogen and oxygen mixture after water vapor decomposition, thus achieving continuous and cyclical decomposition and combustion of water vapor within the engine cylinders. This eliminates the need for continuous fuel injection into the engine cylinders; a small amount of fuel can be added if necessary. This four-cylinder four-stroke internal combustion engine has no external intake system and emits no emissions, making it the most efficient, energy-saving, and environmentally friendly internal combustion engine currently available.

Claims

1. An internal combustion engine, improved on the basis of the existing internal combustion engine technology, characterized in that: The water vapor produced after the fuel in the internal combustion engine burns and does work in the cylinder is not discharged outside the engine body. Instead, the water vapor is recycled and continues to be compressed by the piston in the internal combustion engine cylinder, where it is decomposed into hydrogen and oxygen, which are then burned and do work in the internal combustion engine cylinder. The internal combustion engine decomposes high-temperature water vapor in the cylinder to obtain hydrogen and oxygen, which are then supplied to the internal combustion engine for combustion and work.

2. The method of claim 1, wherein: The internal combustion engine cylinder contains a device for electrolyzing water into hydrogen and oxygen. The internal combustion engine utilizes the high temperature and pressure generated by the movement of the cylinder and piston to decompose water and obtain hydrogen and oxygen, which are then burned in the cylinder to do work.

3. The method of claim 1, wherein: This internal combustion engine has no exhaust or intake devices.

4. The method of claim 1, wherein: The internal combustion engine can be a single-cylinder internal combustion engine.

5. The method of claim 1, wherein: The internal combustion engine can be a multi-cylinder combined internal combustion engine.

6. The method of claim 1, wherein: The exhaust port and intake port of this single-cylinder internal combustion engine are connected.

7. The method of claim 1, wherein: In this multi-cylinder internal combustion engine, the intake port of each cylinder is connected to the exhaust port of the corresponding cylinder and closed to the outside, so that the exhaust gas from each cylinder is drawn into the other cylinder.