阅读说明：本技术 内燃机全流热面点火式燃烧过程及实现装置 (Full flow hot surface ignition type combustion process of internal combustion engine and realizing device ) 是由 李晨天 于 2021-09-20 设计创作，主要内容包括：所述一种内燃机全流热面点火式燃烧过程是一个通过在内燃机气缸与燃烧室之间设置的槽型曲面通道将气缸流入燃烧室的空气气流塑成带状涡流,所述带状涡流将喷嘴喷出的燃料击碎成雾状与其混合后继续流动至设置在燃烧室内根据燃料的燃烧特性设定发热温度并恒定保持设定温度的发热装置的发热表面,所述发热装置的发热表面将到达所述发热表面的空气-燃料混合物,即所述裹挟了燃料雾滴的带状空气涡流,次第点燃而实现燃烧的燃烧过程实施所述全流热面点火式燃烧过程的内燃机可以无差别选用任何可以在一定温度下燃烧的气体或液体燃料为燃料。实施所述全流热面点火式燃烧过程的内燃机的压缩比的设定与燃料的燃烧特性无关,压缩比的设定不需要考虑燃料的抗爆性、自燃性、自燃温度、汽化热、辛烷值或十六烷值等理化特性和燃烧特性。(The full-flow hot-surface ignition combustion process of the internal combustion engine is characterized in that air flow flowing into a combustion chamber from a cylinder is shaped into a belt vortex through a groove-shaped curved surface channel arranged between the cylinder and the combustion chamber of the internal combustion engine, fuel sprayed out of a nozzle is smashed into a mist by the belt vortex and then continuously flows to a heating surface of a heating device which is arranged in the combustion chamber, the heating temperature is set according to the combustion characteristics of the fuel, the heating surface of the heating device constantly keeps the set temperature, and air-fuel mixture reaching the heating surface, namely the belt air vortex wrapped with fuel droplets, is ignited for the second time to realize the combustion process of the combustion. The compression ratio of the internal combustion engine in which the full-flow surface ignition combustion process is performed is set regardless of the combustion characteristics of the fuel, and the compression ratio is set without considering the physical and chemical characteristics of the fuel, such as antiknock property, spontaneous combustibility, autoignition temperature, heat of vaporization, octane number, or cetane number, and the combustion characteristics.)

1. The combustion process in the full-flow heat surface ignition combustion process and the realization elements of the combustion process is characterized in that:

the full-flow hot-surface ignition combustion process of the internal combustion engine is a combustion process which moulds the air flow flowing into a combustion chamber from a cylinder into a belt-shaped vortex through a groove-shaped curved surface channel arranged between the cylinder and the combustion chamber of the internal combustion engine, the belt-shaped vortex breaks fuel sprayed from a nozzle into mist and mixes the mist with the fuel, and then the fuel continuously flows to a heating surface of a heating device which is arranged in the combustion chamber, sets the heating temperature according to the combustion characteristics of the fuel and constantly keeps the set temperature, and the heating surface of the heating device ignites the air-fuel mixture reaching the heating surface, namely the belt-shaped air vortex wrapped with fuel droplets, the air-fuel mixture is ignited for the second time to realize combustion:

the internal combustion engine implementing the full-flow hot-face ignition combustion process can be fueled with any gaseous or liquid fuel that can be burned at a certain temperature, including but not limited to diesel, gasoline, methanol, ethanol, isopropanol, methane, LNG, LPG, CNG, biogas, or any other liquid and gaseous fuel suitable for atomization into an air-fuel mixture within the internal combustion engine;

the temperature of the ignition fuel of the internal combustion engine implementing the full flow hot surface ignition combustion process can be changed according to the combustion characteristics of the fuel and set according to the requirement;

the internal combustion engine for implementing the full-flow hot-surface ignition combustion process changes fuel without changing a fuel supply system and a combustion system of the internal combustion engine or changing an ignition mode of the internal combustion engine, and only needs to modify the temperature of the constant-temperature heating device;

in the internal combustion engine for implementing the full-flow hot-surface ignition combustion process, the temperature of fuel is no longer a factor influencing the ignition success, and the internal combustion engine has no cold start problem;

the compression ratio of the internal combustion engine implementing the full-flow surface ignition combustion process is no longer directly related to the combustion process of the fuel, and the design allows any reasonable compression ratio to be adopted according to actual conditions.

2. The full-flow hot-surface ignition type combustion process as claimed in claim 1, wherein all the fuel of the combustion process is ignited by the heating surface of the constant-temperature heating device to complete the combustion process, and the combustion process is not completed by the diffusion combustion after the initial combustion, namely, the combustion process is only the direct/initial combustion generated by the direct ignition of the heating surface of the constant-temperature heating device, and the combustion process is not performed by the diffusion combustion, namely, the full-flow hot-surface ignition is realized.

3. The full-flow hot-surface ignition type combustion process as claimed in claim 1, wherein the combustion process is started when the fuel sprayed from the nozzle is smashed by the ribbon vortex, mixed with air and guided to the heating surface of the constant temperature heating device to be ignited, the combustion process is ended when the compression stroke is ended, the vortex is ended, the end time is completely consistent with the end time of the compression stroke, and the combustion process is ended when the compression stroke is ended.

4. The full-flow hot-surface ignition combustion process as claimed in claim 1, wherein whether the fuel is combusted or not in the combustion process is not affected by the combustion speed, and is independent of the diffusion combustion speed of the fuel, and all the fuel is carried to the heating surface of the constant-temperature heating device under the entrainment of the ribbon vortex and then is ignited and combusted for the second time, namely 'fuel injection initiation-full-flow constant-heat-surface-initiated combustion'.

5. The full-flow surface ignition combustion process as set forth in claim 1, wherein the combustion of the fuel in the combustion process is independent of the temperature of the compressed air, the compression ratio is set independently of the combustion characteristics of the fuel, the compression ratio is set without taking into account the anti-knock property, the spontaneous combustion temperature and the heat of vaporization of the fuel, and the compression ratio of the internal combustion engine is not set according to the octane number or the cetane number of the fuel.

6. The full-flow surface ignition combustion process as claimed in claim 1, wherein the fuel of the combustion process is injected into the ribbon-like vortex smoothly without special consideration for the injection angle and/or the morphological characteristics of the spray and without special consideration for the atomization effect, i.e. the particle size of the injected fuel droplets, and the installation position of the nozzle is free from special technical requirements which must be met as long as the injected fuel is facilitated to enter the ribbon-like vortex.

7. The full-flow hot-face ignition combustion process of claim 1, wherein:

the enabling elements of the combustion process include three parts: generating vortex and shaping a channel; a constant temperature heating device; ③ the fuel injector:

the vortex generation and shaping channel is a groove-shaped curved surface channel which penetrates through a cylinder and a combustion chamber of the internal combustion engine and has a certain shape;

the width and the surface area of the vortex generation and shaping channel are set according to the relevant technical requirements of the internal combustion engine;

the vortex generation and shaping channel is used for shaping air compressed to the combustion chamber into belt-shaped airflow when the cylinder piston performs a compression stroke, and forming belt-shaped vortex in the combustion chamber under the action of pressure;

the ribbon vortex has proper width and speed, and ensures that all subsequently sprayed fuel can be wrapped on the heating surface of the heating device within a designed time to realize ignition;

the ribbon vortex breaks the fuel sprayed by the nozzle into mist fuel, the mist fuel is mixed with air, the mixed air-fuel mixture is wrapped by the mist fuel and is contacted with the heating surface of the heating device, and the fuel is ignited and combusted for the second time when the mixed air-fuel mixture is contacted with the heating surface of the heating device;

the constant temperature heating device is a heating device which sets the heating temperature according to the self-ignition temperature and the combustion characteristic of the fuel and constantly keeps the set temperature;

the constant-temperature heating device is a heating device which has the same width with the curved surface of the groove-shaped curved surface channel and a certain heating area, and is arranged at a proper position in the cylinder combustion chamber;

the technical parameters of the constant temperature heating device such as heat storage capacity, heating power and the like are set according to thermodynamic conditions required by the ignition process;

the constant temperature heating device is used for guiding the belt-shaped vortex to the air-fuel mixed gas on the surface of the second constant temperature heating device to ignite and burn;

said fuel injector is a valve arrangement capable of injecting a quantity of fuel at a given time;

the time and duration of fuel spraying of the fuel injector are set according to the control strategy, technical requirements and working conditions of the internal combustion engine;

the fuel injector is arranged at a proper position in a combustion chamber of the internal combustion engine;

the fuel injector injects fuel into the ribbon vortex, and the ribbon vortex breaks the injected fuel into mist to be mixed with air in the air flow.

8. The full-flow hot-face ignition combustion process of claim 1, wherein:

the basic working process of the full-flow hot-surface ignition combustion process of the internal combustion engine is as follows:

preheating: before the internal combustion engine is started, the constant-temperature heating device starts to work and heat, and the constant temperature is kept after the constant-temperature heating device is heated to a preset temperature;

forming a vortex: after the constant-temperature heating device is heated to a set temperature, the engine is started, the compression stroke of the internal combustion engine is started, air in the cylinder is extruded into the combustion chamber by the piston, and the air extruded into the combustion chamber forms a high-speed annular moving belt-shaped air vortex shown by a strip dotted line in figure 1 in the internal ball cavity of the combustion chamber under the action of the vortex generation and shaping channel;

③ injecting fuel: at a certain preset time during the compression stroke of the internal combustion engine, the fuel injector injects a certain amount of fuel fog jet flow into the combustion chamber under the control of a mechanical or electronic device, and all the injected fuel fog jet flow is wrapped and mixed by the air vortex flow to form a fuel fog-air mixture shown by a strip-dot composite dashed line in figure 1;

initiation and termination of the combustion process: as shown in FIG. 1, the formed fuel fog-air mixture is further entrained to the high-temperature hot surface of the constant-temperature heating device and then ignited by the hot surface, the combustion process starts, all the fuel is ignited by the constant-temperature heating device for the next time, when the compression stroke is ended, all the fuel is burnt, and then the combustion process is ended.

9. The full-flow hot-face ignition combustion process of claim 1, wherein:

the phenomena of incomplete combustion caused by insufficient diffusion combustion speed and black smoke generation, pre-ignition and late-ignition caused by incomplete combustion are avoided in the combustion of the internal combustion engine.

Technical Field

The invention relates to a combustion process and a realization device of an internal combustion engine, in particular to a combustion process and a realization device of the internal combustion engine based on a constant thermal surface and characterized by 'fuel injection initiation-full flow constant thermal surface initiated combustion', belonging to the technical field of internal combustion engines.

Background

The combustion process of the current internal combustion engine has two types: a spark ignition combustion process represented by a gasoline engine, which is a "spark initiation-spark initiation combustion", that is, the initiation of combustion is initiated by the discharge of a spark plug, the initiation timing of combustion is determined by the timing of the first discharge of the spark plug, in the process, a mixture of fuel and air is compressed in a compression stroke of the internal combustion engine, at a certain timing in the compression process, the spark plug is discharged to ignite and initiate partial combustion of the mixture, the combustion process is immediately started, and the partially ignited mixture spontaneously propagates by flame to ignite the remaining un-ignited mixture, and a remarkable feature of the combustion process is that it comprises two combustion stages, namely, an initial combustion stage and a diffusion combustion stage, namely, the initial combustion stage is the discharge of the spark plug, and the portion of the air-fuel mixture contacting the spark is ignited and combusted, the so-called diffusion combustion stage, the flame ignited by the spark plug ignites other parts of the mixed gas to burn.

The main problems with this combustion process are: firstly, the fuel is required to have good volatility, and the fuel can be fully mixed with air and can be normally combusted only if the fuel has good volatility, so that in the combustion process mode, only the fuel with viscosity and volatility extremely close to those of gasoline can be used as the fuel in the combustion process; secondly, the fuel is required to have good antiknock property, namely the capacity of resisting spontaneous combustion in the compression process, and the fuel cannot be ignited in the compression stroke and the phenomena of detonation and advanced ignition are caused only by the good antiknock property; the fuel is required to be in a certain temperature range, and when the temperature is lower than the temperature, the fuel cannot be normally ignited and completes the combustion process because the fuel cannot be volatilized and mixed with air, so that the cold start problem is common at present; the sensitivity of the spark of the fuel reaches a certain standard, and the fuel below the standard can not be ignited by the electric spark emitted by the spark plug; the compression ratio of the cylinder is required to be set according to the standard, and mixed air is ignited at the non-ignition moment when the compression ratio is higher than the standard, so that the phenomenon of pre-ignition is generated; sixthly, the temperature in the cylinder is required to be in a certain range, and below the temperature, the injected fuel cannot be ignited by spark because the injected fuel cannot be evaporated due to insufficient heating; and the combustion speed of the fuel is required to reach a certain standard, otherwise, incomplete combustion, severe power reduction and the like can be caused.

The above problems exist, so that the ignition combustion process can basically select only the fuel with low flash point and high anti-knock property (octane number) such as gasoline.

The second is a compression ignition combustion process represented by a diesel engine: the combustion process is "fuel injection initiation-hot air combustion by compression", and specifically the initiation of combustion is initiated by hot air by compression, and the initiation of combustion is determined by the timing of the fuel mist jet. In the process, pure air is compressed in the compression stroke of the internal combustion engine, at a certain moment in the compression process, the fuel injector sprays out a fuel fog jet which is ignited when contacting with surrounding hot air which rises above the ignition point of the fuel due to the compression temperature, and the combustion process is started immediately. Similarly, the initial ignited flame spontaneously propagates to ignite the later ejected oil mist, that is, the combustion process also includes an initial combustion stage and a diffusion combustion stage, wherein the initial combustion stage is that the compressed air generates high temperature, the ejected oil mist contacts the high temperature air to be ignited and combusted, and the diffusion combustion stage is that the flame generated in the initial combustion stage ignites the later ejected oil mist to be combusted.

The main problems with this combustion process are: firstly, the self-ignition temperature of the fuel is required to meet a certain standard, and the fuel cannot be ignited by high-temperature air with certain temperature when the self-ignition temperature is too high; the temperature of the fuel must reach a certain standard, and the fuel cannot be ignited when the temperature is too low; the vaporization heat characteristic of the fuel must meet the standard; the compression ratio must reach a certain requirement, and the temperature of the compressed air is not enough to ignite the fuel below the compression ratio; and fourthly, the combustion speed of the fuel must reach the standard, otherwise, the phenomena of combustion lag, insufficient combustion, serious power reduction and even flameout can occur.

The existence of the above problems determines that the compression ignition combustion process is basically only suitable for diesel fuel, which is a fuel with a low octane number and a high cetane number.

The two combustion processes can only select two fossil energy sources with high pollution, namely gasoline or diesel oil, as fuels, and are obviously not suitable in the era of trying to realize carbon neutralization by giving high attention to environmental protection flags at present, so that the development of a combustion process and a device thereof which can use low-carbon emission or even carbon neutralization energy sources as fuels has very important strategic significance for realizing the strategic objective of environmental protection and realizing the environmental objective of carbon neutralization early.

The present invention is an application technical solution developed to solve the above problems.

Disclosure of Invention

The invention provides a full flow hot surface ignition type combustion process of an internal combustion engine and a realizing device;

the full-flow hot-surface ignition combustion process of the internal combustion engine is a combustion process which is characterized in that air flow flowing into a combustion chamber from a cylinder is molded into a belt-shaped vortex through a groove-shaped curved surface channel arranged between the cylinder and the combustion chamber of the internal combustion engine, fuel sprayed out from a nozzle is smashed into a mist shape by the belt-shaped vortex and then continuously flows to a heating surface of a heating device which is arranged in the combustion chamber, the heating temperature is set according to the combustion characteristics of the fuel, the heating surface of the heating device constantly keeps the set temperature, and air-fuel mixture reaching the heating surface, namely the belt-shaped air vortex wrapped with fuel droplets, is ignited for the second time to realize combustion;

all fuels in the combustion process are ignited by the heating surface of the constant-temperature heating device to complete combustion, and the combustion process is not completed by diffusion combustion after initial combustion, namely 'full-flow hot surface ignition';

in the combustion process, only the heating surface of the constant-temperature heating device is directly ignited for direct/initial combustion without diffusion combustion;

the combustion process is started when the fuel sprayed from the nozzle is smashed by the ribbon vortex, is mixed with air and is guided to the heating surface of the constant-temperature heating device to be ignited, the vortex is finished when the compression stroke is finished, the finishing time is completely consistent with the finishing time of the compression stroke, and the combustion process is also finished when the compression stroke is finished;

whether the fuel burns or not in the combustion process is not influenced by the combustion speed and is not related to the diffusion combustion speed of the fuel, and all the fuel is carried to the heating surface of the constant-temperature heating device under the wrapping of the banded vortex and then is ignited and burnt for the second time, namely 'fuel injection initiation-full flow constant-temperature surface initiation combustion';

the fuel combustion in the combustion process is independent of the temperature of compressed air, the setting of the compression ratio is independent of the combustion characteristic of the fuel, the setting of the compression ratio does not need to consider the anti-knock property, the spontaneous combustion temperature and the vaporization heat of the fuel, and the compression ratio of the internal combustion engine does not need to be set according to the octane number or the cetane number of the fuel;

the fuel in the combustion process only needs to be smoothly sprayed into the ribbon vortex without particularly considering the spray angle and/or the morphological characteristics of spray beams and particularly considering the atomization effect, namely the granularity of sprayed fuel droplets and the installation position of a nozzle have no special technical requirements which must be followed as long as the sprayed fuel enters the ribbon vortex;

the enabling elements of the combustion process include three parts: generating vortex and shaping a channel; a constant temperature heating device; ③ the fuel injector:

the vortex generating and shaping channel is a groove-shaped curved surface channel which penetrates through a cylinder and a combustion chamber of the internal combustion engine and has a certain shape;

the width and the surface area of the vortex generation and shaping channel I are set according to the relevant technical requirements of the internal combustion engine;

the vortex generation and shaping channel (I) is used for shaping air compressed to a combustion chamber when a cylinder piston performs a compression stroke into a belt-shaped airflow and forming a belt-shaped vortex in the combustion chamber under the action of pressure;

the ribbon vortex has proper width and speed, and ensures that all subsequently sprayed fuel can be wrapped on the heating surface of the heating device within a designed time to realize ignition;

the fuel sprayed from the nozzle is smashed into mist fuel to be mixed with air by the ribbon vortex, and the mixed air-fuel mixture is wrapped by the ribbon vortex to be contacted with the heating surface of the heating device, and the fuel is ignited and combusted for the second time when the mixed air-fuel mixture is contacted with the heating surface of the heating device.

The constant temperature heating device is a heating device which sets the heating temperature according to the self-ignition temperature and the combustion characteristic of the fuel and constantly keeps the set temperature;

the constant-temperature heating device II is a heating device which has the same width as the curved surface of the groove-shaped curved surface channel and a certain heating area and is arranged at a proper position in the cylinder combustion chamber;

the heat storage capacity, the heating power and other technical parameters of the constant-temperature heating device II are set according to thermodynamic conditions required by the ignition process;

and the constant temperature heating device II has the function of guiding the belt-shaped vortex to the air-fuel mixed gas on the surface of the constant temperature heating device II to ignite and burn.

The fuel injector is a valve device which can spray a certain amount of fuel at a given moment;

the moment and the duration of the fuel injector (c) are set according to the control strategy, technical requirements and working conditions of the internal combustion engine;

the fuel injector is arranged at a proper position in a combustion chamber of the internal combustion engine;

and the fuel injector sprays fuel to the ribbon vortex, and the ribbon vortex breaks the sprayed fuel into mist to be mixed with air in the airflow.

The basic working process of the full-flow hot-surface ignition combustion process of the internal combustion engine is as follows:

preheating: before the internal combustion engine is started, the constant-temperature heating device begins to work and heat, and the temperature is kept basically constant after the constant-temperature heating device is heated to the preset temperature;

forming a vortex: after the constant-temperature heating device is heated to a set temperature, an engine is started, the compression stroke of the internal combustion engine is started, air in a cylinder is extruded into a combustion chamber by a piston, and the air extruded into the combustion chamber forms a high-speed annular moving belt-shaped air vortex in a ball cavity in the combustion chamber under the action of the vortex generation and shaping channel I as shown by a strip dotted line in figure 1;

fuel injection: at a certain preset time during the compression stroke of the internal combustion engine, the fuel injector sprays a certain amount of fuel fog jet flow into the combustion chamber under the control of a mechanical or electronic device, and all the sprayed fuel fog jet flow are wrapped and mixed by the air vortex flow to form a fuel fog-air mixture shown by a strip-dot composite dotted line in figure 1;

initiation and termination of the combustion process: as shown in figure 1, the formed fuel fog-air mixture is continuously carried to the high-temperature hot surface of the constant-temperature heating device II and then ignited by the hot surface, the combustion process starts, all the fuel is ignited by the constant-temperature heating device II for the first time, when the compression stroke is ended, all the fuel is burnt, and the combustion process is ended immediately.

The implementation of the invention has the following effects:

the internal combustion engine may be fueled by any gaseous or liquid fuel capable of burning at a temperature including, but not limited to, diesel, gasoline, methanol, ethanol, isopropanol, methane, LNG, LPG, CNG, biogas, or any other liquid and/or gaseous fuel suitable for atomization into an air/fuel mixture within the internal combustion engine.

The temperature at which the internal combustion engine ignites the fuel may be varied as desired, depending on the combustion characteristics of the fuel.

The fuel supply system and the combustion system of the internal combustion engine do not need to be changed, the ignition mode of the internal combustion engine does not need to be changed, and only the temperature of the constant-temperature heating device needs to be modified.

The temperature of the fuel is no longer a factor influencing the success of ignition, and the problem of cold start of the internal combustion engine is thoroughly solved.

The phenomena of incomplete combustion caused by insufficient diffusion combustion speed and black smoke generation, pre-ignition and late-ignition caused by incomplete combustion are avoided in the combustion of the internal combustion engine.

The compression ratio of an internal combustion engine is no longer directly related to the combustion process of the fuel, and the design allows any reasonable compression ratio to be adopted according to actual conditions.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a component structure diagram of an implementation device of a full-flow hot-surface ignition combustion process of an internal combustion engine according to an embodiment of the present invention, and according to the diagram, the implementation device of the full-flow hot-surface ignition combustion process of the internal combustion engine according to the present invention includes three parts: generating vortex and shaping a channel; a constant temperature heating device; ③ a fuel injector.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The details will be described below.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention, and the appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The appearances of any reference numbers such as "r", "c" … or "first", "second", "third" … or any other similar numbers in the description and claims of the present invention and the accompanying drawings are herein for convenience only to distinguish between different objects and not to describe a particular order unless specifically stated. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to the listed steps or elements, but may alternatively include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Referring to fig. 1, the device for realizing the full flow heat surface ignition combustion process of the internal combustion engine based on the full flow ignition combustion process of the internal combustion engine with the constant heat surface consists of three parts, namely: generating vortex and shaping a channel; a constant temperature heating device; ③ a fuel injector. :

the vortex generating and shaping channel is a groove-shaped curved surface channel which penetrates through a cylinder and a combustion chamber of the internal combustion engine;

the width and the surface area of the vortex generation and shaping channel I are set according to the combustion power of the cylinder;

the vortex generation and shaping channel (I) is used for shaping air compressed to a combustion chamber when a cylinder piston performs a compression stroke into a belt-shaped airflow and forming a belt-shaped vortex in the combustion chamber under the action of pressure;

the ribbon vortex disperses the fuel sprayed by the nozzle into mist fuel to be mixed with air and brings the mixed air-fuel mixture into contact with the surface of the heating element, and the fuel is ignited and combusted for the second time when the mixed air-fuel mixture is contacted with the surface of the heating element.

The constant temperature heating device is a heating device which sets the heating temperature according to the self-ignition temperature and the combustion characteristic of the fuel and constantly keeps the set temperature;

the constant temperature heating device II is a heating device which has the same width with the surface of the groove-shaped curved surface channel, which is contacted with the belt-shaped vortex generated by the groove-shaped curved surface channel, has a certain heating area and is arranged at a proper position in the cylinder combustion chamber;

the heat storage capacity, the heating power and other technical parameters of the constant-temperature heating device II are set according to thermodynamic conditions required by the ignition process;

the constant temperature heating device is used for igniting the air-fuel mixture flowing to the surface of the constant temperature heating device to initiate the whole combustion process.

The fuel injector is a valve device which can spray a certain amount of fuel at a given moment;

the time and duration of the fuel injector (c) spraying fuel are set according to the control strategy of the internal combustion engine;

the fuel injector is arranged at a proper position in a combustion chamber of the internal combustion engine;

and the fuel injector sprays fuel to the ribbon vortex, and the ribbon vortex breaks the sprayed fuel into mist to be mixed with air in the airflow.