Engine cleaning system and cleaning method
Patent Information
- Application Number
- CN202511012631.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-22
- Publication Date
- 2025-09-19
Smart Images
Figure CN120667246A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of engine carbon deposit cleaning, and in particular to an engine cleaning system and a cleaning method. Background Art
[0002] The three indispensable elements for combustion in an internal combustion engine include fuel, oxygen and a fire source. The combustion is divided into oxygen-rich combustion and oil-rich combustion according to the different ratios of fuel and oxygen. Due to power requirements, internal combustion engines are in an oil-rich combustion state most of the time. The oxygen content in the combustion air-fuel ratio is lower than the fuel content. The oxygen content in the atmosphere remains unchanged and decreases with increasing altitude. In addition, the power stroke time of the internal combustion engine is limited, which leads to incomplete fuel combustion during the operation of the internal combustion engine, and then to carbon deposits in the combustion system of the internal combustion engine.
[0003] If a car is driven at low speed for a long time, it will experience increased fuel consumption, insufficient power, and severe carbon deposits. This is because the internal combustion engine does not burn fuel completely at low speeds, which easily leads to carbon deposits. Similarly, even if the internal combustion engine is running at high speeds, it will enter a fuel-rich combustion state, which is also prone to incomplete combustion and carbon deposits.
[0004] Carbon deposits are a complex mixture formed primarily by incompletely burned fuel and oil vapor during the engine combustion process, catalyzed by high temperatures and oxygen. Carbon deposits are composed of unburned fuel colloids, metal salts, and carbides, which form a stable chemical structure under high-temperature catalysis (e.g., hydrochloric acid and resinous colloids further convert into asphaltene). Combustion Difficulty: Carbonized carbon deposits (such as those in the combustion chamber, valves, and exhaust system) have a dense structure due to high-temperature carbonization. While they cannot be fully burned at normal engine operating temperatures, they can be decomposed through localized extreme heat.
[0005] Existing methods for removing carbon deposits rely on physical methods (such as disassembly and cleaning) or chemical methods (such as specialized cleaning agents) to completely remove carbon deposits, such as fuel system cleaning agents or walnut sand cleaning technology. Physical cleaning has the disadvantages of being time-consuming and limiting the area that can be cleaned, while chemical cleaning carries the risk of chemical corrosion. Summary of the Invention
[0006] The purpose of the present invention is to improve and innovate the shortcomings and problems existing in the background technology and to provide an engine cleaning system and a cleaning method.
[0007] According to a first aspect of the present invention, there is provided an engine cleaning system comprising: An air source generation system, comprising an air compressor, a molecular sieve, an ozone generator, and an air ionization device; the output end of the air compressor is connected to the input end of the molecular sieve, the output end of the molecular sieve is connected to the input end of the ozone generator, the output end of the ozone generator is connected to the input end of the air ionization device, and the output end of the air ionization device is connected to the intake manifold of the engine; An exhaust gas detection system, the exhaust gas detection system is used to obtain the content of various gas components in the engine exhaust emissions, the gas component content including at least carbon monoxide, hydrogen sulfide, oxygen, combustible gas content and smoke density; The main controller is used to connect with the air source generation system and the exhaust gas detection system. The main controller adjusts the outlet pressure and flow rate of the air compressor, the oxygen production of the molecular sieve, the ozone production of the ozone generator, and the ion output of the air ionization equipment according to the content of each gas component in the engine exhaust emissions monitored by the exhaust gas detection system.
[0008] A further solution is that the air ionization device includes a negative ion generator and / or a plasma generator, wherein the negative ion generator is used to generate negative ions, and the plasma generator is used to generate a large number of energy-carrying electrons.
[0009] A further solution is that the exhaust gas detection system includes at least a carbon monoxide content detection sensor, a hydrogen sulfide content detection sensor, an oxygen content detection sensor, a combustible gas content detection sensor, a smoke density sensor and an exhaust gas data processing unit, the smoke density sensor is used to monitor the exhaust gas particle value in the exhaust gas emissions; the exhaust gas data processing unit is used to process and calculate the signals monitored by the carbon monoxide content detection sensor, the hydrogen sulfide content detection sensor, the oxygen content detection sensor, the combustible gas content detection sensor and the smoke density sensor to obtain data values of various gas components.
[0010] A further solution is to further include a servo control system, which is used to connect with the accelerator pedal of the engine and the main controller, and the servo control system adjusts the speed of the engine through the accelerator pedal.
[0011] A further solution is that the main controller can be an external single chip microcomputer or an electronic control unit of a car.
[0012] According to a second aspect of the present invention, there is provided an engine cleaning method implemented by any of the above-described systems, comprising the following steps: First-level cleaning: Put the car in P gear; start the engine and run it at idle speed for a preset time; the ozone generated by the ozone generator and the ions generated by the air ionization device clean the engine's intake system; Secondary cleaning: The engine speed is increased to a first preset speed, maintained for several seconds and repeated multiple times. In the oxygen-rich combustion state, ozone is generated by an ozone generator and ions are generated by an air ionization device. Water is atomized to micron level using an ultrasonic atomization system. The engine then inhales the atomized micron-level water and a mixture of ozone and ions during the intake phase to clean the subsurface layer of carbon deposits in the engine cylinder. Level 3 cleaning: Increases the engine speed to a second preset speed to maintain oxygen-rich combustion in the cylinder for several seconds and cycles multiple times. The ozone generated by the ozone generator, the ions generated by the air ionization device, and the micron-level water generated by the ultrasonic atomization system deeply clean the carbon deposits in the engine cylinder. The second preset speed is higher than the first preset speed.
[0013] A further solution is that increasing the engine speed to a second preset speed to maintain oxygen-rich combustion in the cylinder specifically includes: The exhaust gas detection system is used to obtain the content of each gas component in the engine exhaust emissions and determine the volume ratio of the combustible gas content to the oxygen content in the gas components. If the volume ratio of the combustible gas content to the oxygen content is greater than 3:1, the oxygen production of the molecular sieve and the ozone production of the ozone generator are increased.
[0014] A further solution is that the three-stage cleaning step includes: Obtaining a particle value of exhaust gas in the engine exhaust emissions through a smoke density sensor of an exhaust gas detection system; determining whether the particle value of exhaust gas is less than a first preset particle value; If so, the engine speed is reduced to a first preset speed, maintained for several seconds and cycled multiple times; in the oxygen-rich combustion state, an ozone generator is used to generate ozone and an air ionization device is used to generate ions; and the water is atomized to the micron level through an ultrasonic atomization system; so that the engine inhales the atomized micron-level water and a mixed air of ozone and ions during the intake stage to clean the surface of the carbon deposits in the engine cylinder.
[0015] A further solution is that, if so, the engine speed is reduced to a first preset speed, maintained for several seconds and repeated multiple times, and then the steps include: Obtaining a particle value of exhaust gas in the exhaust gas of the engine through a smoke density sensor of an exhaust gas detection system; determining whether the particle value of exhaust gas is less than a second preset particle value; wherein the second preset particle value is less than the first preset particle value; If so, the engine is started and then runs at idle for a preset time until the exhaust particle value is lower than the target particle value.
[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention discloses a rapid, non-destructive, and non-disassembly-required engine carbon deposit cleaning system and cleaning method, the cleaning system increases the oxygen content through molecular sieve oxygen production technology, and allows the engine to obtain more oxygen during the combustion process through active oxygen production (including ozone), thereby allowing the engine to enter oxygen-rich combustion, and achieving rapid cleaning of engine carbon deposits; combined with ozone, it can react with unsaturated olefins in the fuel to decompose large molecular hydrocarbons into small molecular hydrocarbons, which are easier to burn; and negative ions and energy-carrying electrons can effectively reduce the amount of smoke in the combustion process in the combustion chamber, increase the flame diffusion range and energy, thereby achieving rapid cleaning of engine carbon deposits; and the micron-sized water particles after atomization are smaller, and the water particles are further reduced after being compressed by the cylinder piston, thereby forming supercritical water particles; supercritical water particles supercritical water uses high pressure and high temperature to make organic matter in carbon deposits The carbon deposits are dissolved, and its low surface tension property enables the cleaning fluid to penetrate into the tiny pores inside the engine to remove deep carbon deposits. In addition, supercritical water has strong oxidizing properties, which helps to quickly clean carbon deposits. The cleaning method includes primary cleaning, secondary cleaning and tertiary cleaning. The present invention sequentially cleans the carbon deposits in the engine's intake system, the surface layer of carbon deposits in the engine cylinder and the deep carbon deposits in the engine cylinder. During the carbon deposit cleaning process, the engine is gradually heated to reach the self-cleaning temperature, which can quickly clean the carbon deposits and avoid damage to the engine. In addition, the exhaust particle value in the engine exhaust emissions obtained by the smoke sensor can be used to judge the cleaning degree of the cylinder carbon deposit layer. When most of the cylinder carbon deposit layer is removed, by gradually reducing the engine speed, not only can the fuel consumption, ozone consumption and negative ion and plasma consumption during the cleaning process be effectively reduced, but also a steady decrease in the cylinder temperature can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic structural diagram of an engine cleaning system provided by an embodiment of the present invention. DETAILED DESCRIPTION
[0018] In order to make the objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.
[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0020] Example 1 See also Figure 1The present invention provides an engine cleaning system, comprising: Gas source generation system; exhaust gas detection system; Ultrasonic atomization system; Main controller; The air source generation system includes an air compressor, a molecular sieve, an ozone generator, and an air ionization device. The output of the air compressor is connected to the input of the molecular sieve, which is connected to the input of the ozone generator. The output of the ozone generator is connected to the input of the air ionization device, which is connected to the engine's intake manifold. The air compressor draws in air from the outside environment and pressurizes it. The air compressor's intake can be equipped with an air filter to filter impurities from the air. The molecular sieve removes nitrogen and other impurities from the air, resulting in higher-purity oxygen. The ozone generator produces ozone gas. The air ionization device includes a negative ion generator and / or a plasma generator. The negative ion generator generates negative ions, which are negatively charged particles that neutralize positively charged particles in the air, such as smoke and dust, causing them to naturally settle, thereby purifying the air. The plasma generator uses an external electric field to discharge the dielectric to generate a large number of energy-carrying electrons. These electrons bombard the pollutant molecules, causing them to ionize, dissociate and excite, thereby triggering a series of chemical reactions that convert complex macromolecular pollutants into simple / molecular substances. The plasma generator can effectively degrade and remove harmful substances in the air.
[0021] It should be noted that the air compressor can be driven by the engine power through a belt; thereby driving the air compressor to compress the air; of course, the air compressor can also be driven directly by a motor, which can be determined by technicians in this field according to actual conditions. The high-pressure air passes through the molecular sieve to obtain dissolved oxygen, and then passes through the ozone generator, negative ion generator and plasma generator to form a mixed gas of high dissolved oxygen, ozone and negative ions and energy-carrying electrons, and is introduced into the engine air intake through the intake manifold. After the engine obtains higher dissolved oxygen, it will effectively improve the combustion efficiency. The strong oxidizing property of ozone helps combustion, while the negative ions and energy-carrying electrons can effectively reduce the amount of smoke in the combustion process in the combustion chamber, increase the flame diffusion range and energy, and at the same time Ozone's strong oxidizing properties can promote complete combustion of fuel. During the fuel micronization process, ozone's strong oxidizing properties can be used to further decompose the fuel and enhance its micronization effect. Ozone can react with unsaturated olefins in the fuel, breaking down large hydrocarbon molecules into smaller ones. These smaller hydrocarbon molecules are more easily combustible, while releasing a large amount of heat during the reaction, helping to improve combustion efficiency. Ozone can also shorten the engine's ignition delay, making combustion more uniform, reducing knock, and improving the efficiency of heat energy conversion. Ozone is immediately converted into oxygen when its temperature reaches 270°C. The combustion temperature in the engine combustion chamber is much higher than 270°C, thus preventing ozone from polluting the atmosphere through exhaust emissions. Furthermore, negative ions, which are energy bodies carrying negative electrons, and plasma, which are energy-carrying electrons, can accelerate electron migration during combustion, thereby increasing the combustion reaction rate.
[0022] It's important to note that the primary pathways of engine flame propagation include heat conduction, convection, and radiation. These propagation modes work synergistically within an internal combustion engine, influencing flame propagation and the combustion process. Because negative ions and plasma rapidly purify the air and suppress soot, they can enhance the efficiency of heat conduction, convection, and radiation in the combustion chamber. This suppresses soot during the combustion process, thereby improving flame propagation efficiency and achieving efficient and clean combustion.
[0023] The exhaust gas detection system is used to obtain the content of each gas component in the engine exhaust emissions, and the gas component content includes at least carbon monoxide, hydrogen sulfide, oxygen, combustible gas content and smoke density; the exhaust gas detection system includes at least a carbon monoxide content detection sensor, a hydrogen sulfide content detection sensor, an oxygen content detection sensor, a combustible gas content detection sensor, a smoke density sensor and an exhaust gas data processing unit, and the smoke density sensor is used to monitor the exhaust gas particle value in the exhaust gas emissions; the exhaust gas data processing unit is used to process and calculate the signals monitored by the carbon monoxide content detection sensor, the hydrogen sulfide content detection sensor, the oxygen content detection sensor, the combustible gas content detection sensor and the smoke density sensor to obtain the data values of various gas components.
[0024] Preferably, the exhaust gas detection system may also include other component detection sensors, such as nitrogen; those skilled in the art may determine it according to actual conditions and it is not limited to the above-mentioned gas component detection sensors.
[0025] The ultrasonic atomization system is used to atomize water to the micron level, and the water outlet of the ultrasonic atomization system is connected to the intake manifold of the engine. The micron-sized water particles after atomization are smaller, and the water particles are further reduced after being compressed by the cylinder piston, thereby forming supercritical water particles. Supercritical water dissolves organic matter in carbon deposits through high pressure and high temperature. At the same time, its low surface tension characteristics enable the cleaning fluid to penetrate into the tiny pores inside the engine to remove deep carbon deposits. In addition, supercritical water has strong oxidizing properties, which helps to quickly clean carbon deposits.
[0026] The main controller is used to connect to the gas source generation system and the exhaust gas detection system. The main controller adjusts the outlet pressure and outlet flow of the air compressor, the oxygen production of the molecular sieve, the ozone production of the ozone generator, and the ion output of the air ionization device according to the content of each gas component in the engine exhaust emissions monitored by the exhaust gas detection system. Through these adjustment measures, the oxygen solubility can be effectively improved, creating the necessary conditions for the internal combustion engine to achieve oxygen-rich combustion. During this process, the operating temperature of the internal combustion engine will briefly rise to an extremely high temperature, thereby achieving effective cleaning of carbon deposits. In addition, the catalytic reaction between ozone and negative ion oxygen can enhance the oxidizing property of oxygen, and then use this high oxidizing property to assist in completing the carbon deposit cleaning work.
[0027] It should be noted that the main controller can be an external single-chip microcomputer or the electronic control unit of the vehicle. The specific main controller to be used can be determined by professionals in this field based on actual needs and scenarios, and the present invention does not impose specific limitations in this regard.
[0028] In some preferred embodiments, the present invention also includes a servo control system, which is used to connect to the engine's accelerator pedal and the main controller. The servo control system adjusts the engine speed through the accelerator pedal, thereby achieving precise adjustment of the engine speed; in actual operation, the staff can also step on the accelerator pedal at the right time based on the engine speed information displayed on the car's dashboard to make the engine run stably within the required speed range; or when the main controller is the car's electronic control unit, the car's electronic control unit directly controls the accelerator pedal so that the engine operates at the target speed; those skilled in the art can determine it according to actual conditions, and the present invention does not make specific limitations.
[0029] Example 2 The present invention also provides an engine cleaning method, which is implemented by the system described in Example 1 and includes the following steps: Level 1 cleaning: Put the vehicle in P gear; start the engine and run it at idle for a preset time. The ozone generated by the ozone generator and the ions produced by the air ionization device clean the engine's intake system. During this cleaning process, the engine gradually heats up, allowing the cylinders to reach the operating temperature required for oxygen-rich combustion. The preset time can be three or five minutes, and can be determined by those skilled in the art based on actual circumstances.
[0030] Secondary cleaning: Wait until the engine idles for a preset time, during which time the engine cylinder temperature reaches the operating temperature required for oxygen-rich combustion. The engine speed is increased to a first preset speed, maintained for several seconds, and repeated multiple times. In the oxygen-rich combustion state, an ozone generator is used to generate ozone, and an air ionizer is used to generate ions. An ultrasonic atomization system is used to atomize water to micron size. This allows the engine to inhale the atomized micron-sized water and a mixture of ozone and ions during the intake phase, cleaning the subsurface layer of carbon deposits in the engine cylinder. It should be noted that in order to avoid corrosion to the cylinder body caused by the inhaled micron-sized water, the volume ratio of water to fuel in the mixture inhaled during each intake stage needs to be controlled to be less than 1:10; in this way, the micron-sized water particles after atomization are smaller, and the water particles are further reduced after being compressed by the cylinder piston, thereby forming supercritical water particles; supercritical water particles dissolve the organic matter in the carbon deposits through high pressure and high temperature, and its low surface tension characteristics enable the cleaning fluid to penetrate into the tiny pores inside the engine to remove deep carbon deposits, and supercritical water has strong oxidizing properties, which helps to quickly clean carbon deposits.
[0031] Level 3 cleaning: Increase the engine speed to the second preset speed, maintain oxygen-rich combustion in the cylinder, maintain for several seconds and cycle multiple times; allow the ozone generated by the ozone generator, the ions generated by the air ionization device, and the micron-level water generated by the ultrasonic atomization system to deeply clean the carbon deposit layer in the engine cylinder; wherein, the second preset speed is higher than the first preset speed, the second preset speed can be 4000r / min; the first preset speed can be 2000r / min.
[0032] It should be noted that the above control process can be implemented by an external single-chip microcomputer or by the electronic control unit of the vehicle. As for the specific control method to be adopted, it depends on the type of main controller and is not explicitly limited in the present invention.
[0033] Optionally, increasing the engine speed to a second preset speed to maintain oxygen-rich combustion in the cylinder specifically includes: The exhaust gas detection system is used to obtain the content of each gas component in the engine exhaust emissions and determine the volume ratio of the combustible gas content and the oxygen content in the gas component content. If the volume ratio of the combustible gas content and the oxygen content is greater than 3:1, the oxygen production of the molecular sieve and the ozone production of the ozone generator are increased until the volume ratio of the combustible gas content and the oxygen content is less than 3:1, thereby allowing the engine to enter a high-oxygen-rich combustion state, thereby achieving rapid cleaning of engine carbon deposits. During the carbon deposit cleaning process, there is no need to disassemble the engine and there is no risk of chemical corrosion.
[0034] Optionally, the three-stage cleaning step includes: Obtaining a particle value of exhaust gas in the engine exhaust emissions through a smoke density sensor of an exhaust gas detection system; determining whether the particle value of exhaust gas is less than a first preset particle value; If so, it indicates that most of the carbon deposit layer in the cylinder has been removed. If so, the engine speed is reduced to a first preset speed, maintained for several seconds and cycled multiple times; in the oxygen-rich combustion state, ozone is generated by an ozone generator and ions are generated by an air ionization device; and water is atomized to the micron level through an ultrasonic atomization system; so that the engine inhales the atomized micron-level water and the mixed air of ozone and ions during the intake stage to clean the surface of the carbon deposit in the engine cylinder.
[0035] Optionally, if yes, then the step of reducing the engine speed to a first preset speed, maintaining it for several seconds and repeating it multiple times includes: Obtaining a particle value of exhaust gas in the exhaust gas of the engine through a smoke density sensor of an exhaust gas detection system; determining whether the particle value of exhaust gas is less than a second preset particle value; wherein the second preset particle value is less than the first preset particle value; If so, the engine is started and then runs at idle for a preset time until the exhaust particle value is lower than the target particle value.
[0036] It can be understood that the degree of cleaning of the cylinder carbon deposit layer can be judged based on the exhaust particle value in the engine exhaust emissions obtained by the smoke sensor; when most of the cylinder carbon deposit layer is removed, by gradually reducing the engine speed, not only can the fuel consumption, ozone consumption, and negative ion and plasma consumption during the cleaning process be effectively reduced, but also a steady drop in cylinder temperature can be achieved.
[0037] In summary, the present invention discloses a rapid, non-destructive, and non-disassembly-required system and method for cleaning carbon deposits in an engine. The cleaning system increases the oxygen content through molecular sieve oxygen production technology, and allows the engine to obtain more oxygen during the combustion process through active oxygen production (including ozone), thereby allowing the engine to enter oxygen-rich combustion and achieve rapid cleaning of carbon deposits in the engine; combined with ozone, it can react with unsaturated olefins in the fuel to decompose large molecular hydrocarbons into small molecular hydrocarbons, which are easier to burn; and negative ions and energy-carrying electrons can effectively reduce the amount of smoke in the combustion process in the combustion chamber, increase the flame diffusion range and energy, thereby achieving rapid cleaning of carbon deposits in the engine; and the micron-sized water particles after atomization are smaller, and the water particles are further reduced after being compressed by the cylinder piston, thereby forming supercritical water particles; supercritical water particles dissolve organic matter in carbon deposits through high pressure and high temperature, and at the same time, its The low surface tension property enables the cleaning fluid to penetrate into the tiny pores inside the engine and remove deep carbon deposits. In addition, supercritical water has strong oxidizing properties, which helps to quickly clean carbon deposits. The cleaning method includes primary cleaning, secondary cleaning and tertiary cleaning. The present invention sequentially cleans the carbon deposits in the engine's intake system, the surface layer of carbon deposits in the engine cylinder and the deep carbon deposits in the engine cylinder. During the carbon deposit cleaning process, the engine is gradually heated up to reach the self-cleaning temperature, which can quickly clean the carbon deposits and avoid damage to the engine. In addition, the exhaust gas particle value in the engine exhaust emissions obtained by the smoke sensor can be used to judge the cleaning degree of the cylinder carbon deposit layer. When most of the cylinder carbon deposit layer is removed, by gradually reducing the engine speed, not only can the fuel consumption, ozone consumption and negative ion and plasma consumption during the cleaning process be effectively reduced, but also a steady drop in cylinder temperature can be achieved.
[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation to the invention.
[0039] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.
[0040] Obviously, the described embodiments are only some of the embodiments of the present application, rather than all of the embodiments. Mentioning "embodiments" in this article means that the specific features, structures or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present embodiment application. The appearance of this phrase in various places in the specification does not necessarily mean the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It can be understood explicitly and implicitly by those skilled in the art that the embodiments described herein can be combined with other embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of this application. Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and purpose of the present invention, and the scope of the present invention is defined by the claims and their equivalents.
Claims
1. An engine cleaning system, characterized in that: include: An air source generation system, comprising an air compressor, a molecular sieve, an ozone generator, and an air ionization device; the output end of the air compressor is connected to the input end of the molecular sieve, the output end of the molecular sieve is connected to the input end of the ozone generator, the output end of the ozone generator is connected to the input end of the air ionization device, and the output end of the air ionization device is connected to the intake manifold of the engine; An ultrasonic atomization system, wherein the ultrasonic atomization system is used to atomize water to the micron level, and the water outlet of the ultrasonic atomization system is connected to the intake manifold of the engine; An exhaust gas detection system, the exhaust gas detection system is used to obtain the content of various gas components in the engine exhaust emissions, the gas component content including at least carbon monoxide, hydrogen sulfide, oxygen, combustible gas content and smoke density; The main controller is used to connect with the air source generation system and the exhaust gas detection system. The main controller adjusts the outlet pressure and flow rate of the air compressor, the oxygen production of the molecular sieve, the ozone production of the ozone generator, and the ion output of the air ionization equipment according to the content of each gas component in the engine exhaust emissions monitored by the exhaust gas detection system.
2. An engine cleaning system according to claim 1, characterized in that: The air ionization device includes a negative ion generator and / or a plasma generator. The negative ion generator is used to generate negative ions, and the plasma generator is used to generate a large number of energy-carrying electrons.
3. The engine cleaning system according to claim 1, characterized in that: The exhaust gas detection system includes at least a carbon monoxide content detection sensor, a hydrogen sulfide content detection sensor, an oxygen content detection sensor, a combustible gas content detection sensor, a smoke density sensor and an exhaust gas data processing unit. The smoke density sensor is used to monitor the exhaust gas particle value in the exhaust gas emissions; the exhaust gas data processing unit is used to process and calculate the signals monitored by the carbon monoxide content detection sensor, the hydrogen sulfide content detection sensor, the oxygen content detection sensor, the combustible gas content detection sensor and the smoke density sensor to obtain data values of various gas components.
4. The engine cleaning system according to claim 1, characterized in that: The system also includes a servo control system, which is used to connect with the accelerator pedal of the engine and the main controller. The servo control system adjusts the speed of the engine through the accelerator pedal.
5. The engine cleaning system according to claim 1, characterized in that: The main controller may be an external single chip microcomputer or an electronic control unit of a vehicle.
6. An engine cleaning method, characterized in that: The method is implemented by the system according to any one of claims 1 to 5, comprising the following steps: First-level cleaning: Put the car in P gear; start the engine and run it at idle speed for a preset time; the ozone generated by the ozone generator and the ions generated by the air ionization device clean the engine's intake system; Secondary cleaning: The engine speed is increased to a first preset speed, maintained for several seconds and repeated multiple times. In the oxygen-rich combustion state, ozone is generated by an ozone generator and ions are generated by an air ionization device. Water is atomized to micron level using an ultrasonic atomization system. The engine then inhales the atomized micron-level water and a mixture of ozone and ions during the intake phase to clean the subsurface layer of carbon deposits in the engine cylinder. Level 3 cleaning: Increases the engine speed to a second preset speed to maintain oxygen-rich combustion in the cylinder for several seconds and cycles multiple times. The ozone generated by the ozone generator, the ions generated by the air ionization device, and the micron-level water generated by the ultrasonic atomization system deeply clean the carbon deposits in the engine cylinder. The second preset speed is higher than the first preset speed.
7. An engine cleaning method according to claim 6, characterized in that: Increasing the engine speed to the second preset speed to maintain oxygen-rich combustion in the cylinder specifically includes: The exhaust gas detection system is used to obtain the content of each gas component in the engine exhaust emissions and determine the volume ratio of the combustible gas content to the oxygen content in the gas components. If the volume ratio of the combustible gas content to the oxygen content is greater than 3:1, the oxygen production of the molecular sieve and the ozone production of the ozone generator are increased.
8. An engine cleaning method according to claim 6, characterized in that: The three-stage cleaning steps then include: Obtaining a particle value in the exhaust gas of the engine through a smoke density sensor of the exhaust gas detection system; determining whether the particle value is less than a first preset particle value; If so, the engine speed is reduced to a first preset speed, maintained for several seconds and cycled multiple times; in the oxygen-rich combustion state, an ozone generator is used to generate ozone and an air ionization device is used to generate ions; and the water is atomized to the micron level through an ultrasonic atomization system; so that the engine inhales the atomized micron-level water and a mixed air of ozone and ions during the intake stage to clean the surface of the carbon deposits in the engine cylinder.
9. An engine cleaning method according to claim 7, characterized in that: If so, the engine speed is reduced to a first preset speed, maintained for several seconds and repeated multiple times, and then the steps include: Obtaining a particle value of exhaust gas in the exhaust gas of the engine through a smoke density sensor of an exhaust gas detection system; determining whether the particle value of exhaust gas is less than a second preset particle value; wherein the second preset particle value is less than the first preset particle value; If so, the engine is started and then runs at idle for a preset time until the exhaust particle value is less than the target particle value.