Oil evaporation device, oil gas supply system of engine and vehicle

Abstract

The invention discloses an oil liquid evaporation device, an oil gas supply system of an engine and a vehicle. The oil liquid evaporation device comprises a shell, an oil tank, an oil tank and an oil tank, the heating assembly is arranged in the shell, the heating assembly is communicated with the oil cavity, a gas flow channel is formed in the shell, the gas outlet end of the gas flow channel is suitable for being communicated with a pre-combustion chamber of the engine, and the heating assembly is communicated with the gas flow channel. Therefore, the oil cavity, the heating assembly and the gas flow channel are arranged in the shell of the oil liquid evaporation device, oil liquid in the oil cavity can be evenly heated and fully gasified, evenly-mixed oil-gas mixed gas is provided for the pre-combustion chamber, and the oil liquid evaporation device is simple in structure, small in size, free of influence on overall arrangement of an engine and high in feasibility.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to an oil evaporation device, an oil and gas supply system of an engine, and a vehicle. Background Art

[0002] Compared to traditional spark plug ignition, the active pre-chamber provides greater ignition energy and faster flame propagation, effectively extending the lean burn limit and improving combustion efficiency. However, in low-temperature environments, fuel fluidity decreases, and fuel atomization in the pre-chamber is poor, making the engine prone to problems such as difficulty starting or abnormal starting.

[0003] In order to solve the problem of engine cold start, the existing gaseous pre-combustion chamber design is mainly aimed at gas engines, or a more complex heating device is introduced into the engine system, which makes major changes to the engine body and the oil / gas supply system. This increases the size of the engine system, makes layout difficult, and has a low temperature rise rate, making it impossible to respond quickly to cold start conditions. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an oil evaporation device that can fully vaporize the oil and has a small volume.

[0005] The present invention further provides an oil and gas supply system for an engine.

[0006] The present invention further provides a vehicle.

[0007] According to an embodiment of the present invention, the oil evaporation device includes: a shell, an oil chamber is provided in the shell; a heating component is provided in the shell, the heating component is connected to the oil chamber, a gas flow channel is provided in the shell, the gas outlet end of the gas flow channel is suitable for connecting to the pre-combustion chamber of the engine, and the heating component is connected to the gas flow channel.

[0008] Therefore, by arranging an oil chamber, a heating component and a gas flow channel in the shell of the oil evaporation device, not only can the oil in the oil chamber be evenly heated and fully vaporized, providing a uniformly mixed oil-gas mixture for the pre-combustion chamber, but the oil evaporation device also has a simple structure and a small size, will not affect the overall layout of the engine, and has high feasibility.

[0009] According to some embodiments of the present invention, the heating assembly includes an oil adsorbing member and a heating member, the oil adsorbing member is communicated with the oil cavity, and the heating member is disposed in the oil adsorbing member.

[0010] According to some embodiments of the present invention, the oil chamber is annular and circumferentially arranged on the outside of the heating component, and the oil adsorption component is annular and circumferentially arranged on the outside of the gas flow channel.

[0011] According to some embodiments of the present invention, the oil adsorbing element is a hollow porous ceramic, and the heating element is a spiral electric heating wire.

[0012] According to some embodiments of the present invention, there are multiple heating elements, and the multiple heating elements are arranged at intervals in the oil adsorbing element.

[0013] The oil and gas supply system of the engine according to the present invention includes: an oil tank; an engine, the engine having a pre-combustion chamber; the oil evaporation device described above, the oil inlet of the oil chamber is connected to the oil outlet of the oil tank, the oil outlet of the oil chamber is connected to the oil inlet of the oil tank, the air inlet end of the gas flow channel is connected to the external air, and the air outlet end of the gas flow channel is connected to the pre-combustion chamber.

[0014] According to some embodiments of the present invention, the oil and gas supply system of the engine includes a first oil supply channel and a second oil supply channel, the two ends of the first oil supply channel are respectively connected to the oil outlet of the oil tank and the oil inlet of the oil chamber, the two ends of the second oil supply channel are respectively connected to the oil outlet of the oil tank and the main combustion chamber of the engine, and the first oil supply channel and the second oil supply channel are arranged in parallel.

[0015] According to some embodiments of the present invention, the first oil supply channel and / or the second oil supply channel is provided with a first flow controller.

[0016] According to some embodiments of the present invention, the oil and gas supply system of the engine includes a first supply flow channel and a second supply flow channel, the two ends of the first supply flow channel are respectively connected to the external air and the air intake end of the gas flow channel, the two ends of the second supply flow channel are respectively connected to the external air and the engine, and the first supply flow channel and the second supply flow channel are arranged in parallel.

[0017] According to some embodiments of the present invention, the first air supply channel and / or the second air supply channel is provided with a second flow controller.

[0018] According to some embodiments of the present invention, the oil and gas supply system of the engine further comprises a control unit, wherein the control unit is electrically connected to the heating element of the oil evaporation device to selectively control the heating element to heat.

[0019] The vehicle according to the present invention includes the above-mentioned oil and gas supply system for the engine.

[0020] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which: Figure 1 is a schematic diagram of an oil and gas supply system for an engine according to an embodiment of the present invention; Figure 2 is a schematic diagram of an oil evaporation device according to an embodiment of the present invention; Figure 3 2 is a schematic diagram of an oil evaporation device according to an embodiment of the present invention from another perspective.

[0022] Reference numerals: 100. Engine oil and gas supply system; 10. Oil evaporation device; 11. Housing; 111. Oil chamber; 1111. Oil inlet; 1112. Oil outlet; 12. Gas flow channel; 121. Gas outlet; 122. Gas inlet; 13. Heating assembly; 131. Oil adsorption element; 132. Heating element; 1321. Electrode; 20. Fuel tank; 21. Oil outlet; 30. Engine; 31. Precombustion chamber; 32. Main combustion chamber; 321. Injector; 33. Intake manifold; 34. Throttle valve; 40. First oil supply channel; 50. Second oil supply channel; 60. First flow controller; 70. First oil supply channel; 80. Second oil supply channel; 90. Second flow controller; 110. Return valve; 120. Air filter; 130. Oil pump; 140. First pressure sensor; 150. Second pressure sensor; 160. Check valve. DETAILED DESCRIPTION

[0023] The embodiments of the present invention will be described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention will be described in detail below.

[0024] Reference below Figure 1-Figure 3 An oil evaporation device 10 according to an embodiment of the present invention is described. The oil evaporation device 10 in the embodiment of the present invention can be applied to an oil and gas supply system 100 of an engine. The oil and gas supply system 100 of an engine in the embodiment of the present invention can be applied to a vehicle.

[0025] Combine Figure 2 and Figure 3As shown, an oil evaporation device 10 according to an embodiment of the present invention may primarily include a housing 11 and a heating assembly 13. Housing 11 defines an oil chamber 111 for accommodating a certain amount of oil. Heating assembly 13 is disposed within housing 11 to ensure structural stability within oil evaporation device 10.

[0026] Furthermore, the heating component 13 is connected to the oil chamber 111 , a gas flow channel 12 is provided in the shell 11 , the gas outlet end 121 of the gas flow channel 12 is suitable for being connected to the pre-combustion chamber 31 of the engine 30 , and the heating component 13 is connected to the gas flow channel 12 .

[0027] Specifically, when there is oil in the oil cavity 111 in the housing 11, the oil can enter the heating component 13 so that the heat generated by the heating component 13 can be transferred to the oil, thereby heating the oil. The heated oil can form oil mist particles, which can enter the gas flow channel 12 and mix with the gas in the gas flow channel 12 to form an oil-gas mixture. The oil-gas mixture can enter the pre-combustion chamber 31 of the engine 30 through the gas outlet 121 of the gas flow channel 12. In this way, the oil evaporation device 10 can provide a uniform oil-gas mixture to the pre-combustion chamber 31 of the engine 30, so that under low-temperature cold start conditions, the pre-combustion chamber 31 can stably and quickly ignite the mixture, thereby solving the problems encountered during the cold start of the engine 30.

[0028] Therefore, the present invention sets an oil chamber 111, a heating component 13 and a gas flow channel 12 in the shell 11 of the oil evaporation device 10, which not only can evenly heat the oil in the oil chamber 111 and fully vaporize it, providing a uniformly mixed oil-gas mixture for the pre-combustion chamber 31, but also the oil evaporation device 10 has a simple structure and a small size, will not affect the overall layout of the engine 30, and has high feasibility.

[0029] Combine Figure 2 and Figure 3 As shown, the heating assembly 13 includes an oil adsorbing element 131 and a heating element 132. The oil adsorbing element 131 is connected to the oil chamber 111, and the heating element 132 is disposed within the oil adsorbing element 131. Specifically, the oil adsorbing element 131 has a certain suction effect on the oil. When the oil adsorbing element 131 is connected to the oil chamber 111, the oil adsorbing element 131 can absorb the oil in the oil chamber 111 into the heating assembly 13. The heating element 132 then operates within the oil adsorbing element 131, allowing the heat generated by the heating element 132 to be quickly transferred to the oil adsorbing element 131, heating and vaporizing the oil on the oil adsorbing element 131 to form stable oil mist particles.

[0030] The heating component 13 of the embodiment of the present invention can quickly heat the oil to improve the oil atomization efficiency during cold start, thereby helping to improve the ignition efficiency of the pre-combustion chamber 31 and improving the ignition reliability of the pre-combustion chamber 31.

[0031] Combine Figure 3 As shown, the oil chamber 111 is annular and circumferentially disposed outside the heating assembly 13. The oil adsorbent 131 is annular and circumferentially disposed outside the gas flow channel 12. Specifically, the oil chamber 111 is a wall formed between the outer wall surface of the hollow porous ceramic and the inner wall surface of the housing 11, and is disposed around the outer side of the annular heating assembly 13. This increases the contact area between the oil chamber 111 and the heating assembly 13, facilitating uniform heating of the oil on the oil adsorbent 131 by the heating element 132, thereby forming a uniform oil-gas mixture in the oil evaporation device 10.

[0032] Furthermore, the annular oil adsorption member 131 is arranged around the outside of the gas flow channel 12, which not only separates the gas flow channel 12 from the oil chamber 111, but also realizes the mixing of oil and gas in the oil evaporation device 10, and also increases the contact range between the oil mist particles and the gas, which is beneficial to improving the uniformity of the oil-gas mixture.

[0033] According to an embodiment of the present invention, the oil adsorption element 131 is a hollow porous ceramic, and the heating element 132 is a spiral electric heating wire. Specifically, the hollow porous ceramic has a large number of tiny pores, which attract the liquid oil from the oil chamber 111 to the surface of the hollow porous ceramic through capillary action. The electrode 1321 of the spiral electric heating wire is led out from the shell 11 of the evaporator and connected to the vehicle low-voltage circuit, wherein the voltage in the vehicle low-voltage circuit is between 3V and 6V. When the spiral electric heating wire is energized, it can generate heat and transfer the heat to the hollow porous ceramic. Since the ceramic material has good thermal conductivity, the heat can be evenly distributed throughout the hollow porous ceramic, thereby achieving uniform heating and evaporation of the adsorbed oil to form fine oil mist particles. A gas flow channel 12 can be set in the hollow position of the porous ceramic, and the oil mist particles formed by evaporation can enter the gas flow channel 12 and mix with the gas in the gas flow channel 12 to form an oil-gas mixture.

[0034] The heating component 13 in the embodiment of the present invention is composed of hollow porous ceramics and spiral electric heating wires. It has a simple structure and can preheat and atomize the oil entering the pre-combustion chamber 31. It is small in size and does not require modification to the traditional gasoline engine cylinder head. It only requires adding an oil evaporation device 10 to the engine's oil and gas supply system 100 and an air-liquid pipeline connected to other structures in the engine's oil and gas supply system 100. It does not affect the overall layout of the engine 30 and is easy to implement in the existing engine 30 system.

[0035] According to an embodiment of the present invention, multiple heating elements 132 are provided, spaced apart within the oil adsorbing element 131. This arrangement increases the number of heating elements 132 within the oil adsorbing element 131, thereby improving the oil heating efficiency of the heating assembly 13 and enabling rapid formation of an oil-air mixture within the oil evaporation device 10. During a cold start of the engine 30, the oil-air evaporation device can quickly provide a uniform oil-air mixture to the pre-combustion chamber 31, thereby improving the ignition efficiency and reliability of the pre-combustion chamber 31.

[0036] Furthermore, multiple heating elements 132 are arranged at intervals in the oil adsorption element 131, so that the heating elements 132 can be evenly arranged in the oil adsorption element 131, so that the heat generated by the heating elements 132 can be evenly transferred to every part of the oil adsorption element 131, so that the oil at various positions on the oil adsorption element 131 can absorb heat. Such an arrangement can improve the uniformity of the oil mist particles generated in the oil evaporation device 10, thereby facilitating the formation of a uniform oil-gas mixture in the oil mixing device.

[0037] Combine Figure 1 As shown, an oil and gas supply system 100 for an engine according to an embodiment of the present invention may primarily include: a fuel tank 20, an engine 30, and an oil evaporation device 10. The fuel tank 20 is used to store a certain amount of fuel required for combustion in the engine 30. A first pressure sensor 140 is provided in the fuel tank 20 to detect the oil pressure in the fuel tank 20. The engine 30 has a pre-combustion chamber 31, which facilitates ignition of the mixture, thereby improving the combustion efficiency of the main combustion chamber 32 and enhancing ignition reliability in low-temperature environments.

[0038] Furthermore, the oil inlet 1111 of the oil chamber 111 of the oil evaporation device 10 is connected to the oil outlet 21 of the oil tank 20, so that the oil in the oil tank 20 can at least partially flow into the oil chamber 111 for heating and evaporation of the oil evaporation device 10.

[0039] Furthermore, the oil outlet 1112 of the oil chamber 111 is connected to the oil inlet of the fuel tank 20, and a reflux valve 110 is provided between the oil outlet 1112 of the oil chamber 111 and the oil inlet of the fuel tank 20. In this way, after the engine 30 is shut down, the spiral electric heating wire stops heating, and the oil vapor remaining in the gas path condenses into a small amount of droplets, and the excess oil that cannot be absorbed by the hollow porous ceramics can flow back to the fuel tank 20 through the reflux valve 110, thereby avoiding an increase in fuel vapor emissions from the engine 30 system.

[0040] Furthermore, the inlet end 122 of the gas flow channel 12 is connected to the outside air, and the outlet end 121 of the gas flow channel 12 is connected to the pre-combustion chamber 31. This allows outside air to enter the gas flow channel 12 and mix with the heated and vaporized oil mist particles in the oil evaporation device 10 to form an oil-gas mixture. The oil-gas mixture then flows into the pre-combustion chamber 31 through the outlet end 121 of the gas flow channel 12 to be ignited by the pre-combustion chamber 31.

[0041] In an embodiment of the present invention, a check valve 160 and a second pressure sensor 150 are provided between the outlet end 121 of the gas flow channel 12 and the pre-combustion chamber 31. The check valve 160 ensures that the oil-gas mixture flows in a single direction from the gas flow channel 12 to the pre-combustion chamber 31, preventing the oil-gas mixture from flowing back into the gas flow channel 12, thereby ensuring ignition reliability in the pre-combustion chamber 31. The second pressure sensor 150 is used to detect the gas pressure between the gas flow channel 12 and the pre-combustion chamber 31, thereby monitoring whether the oil-gas mixture leaks.

[0042] In an embodiment of the present invention, the oil and gas supply system 100 of the engine also includes an air filter 120. After the external air enters the oil and gas supply system 100 of the engine, it is first filtered into clean air by the air filter 120, and then enters the gas flow channel 12 through the air intake end 122 of the gas flow channel 12. This ensures that the gas entering the oil and gas supply system 100 of the engine is free of impurities, thereby reducing harm to the engine 30 and improving fuel economy.

[0043] Combine Figure 1 As shown, the oil and gas supply system 100 of the engine includes a first oil supply channel 40 and a second oil supply channel 50. The two ends of the first oil supply channel 40 are respectively connected to the oil outlet 21 of the oil tank 20 and the oil inlet 1111 of the oil chamber 111, and the two ends of the second oil supply channel 50 are respectively connected to the oil outlet 21 of the oil tank 20 and the main combustion chamber 32 of the engine 30. The first oil supply channel 40 and the second oil supply channel 50 are arranged in parallel.

[0044] Specifically, the two ends of the first oil supply channel 40 are respectively connected to the oil outlet 21 of the oil tank 20 and the oil inlet 1111 of the oil chamber 111, so that the oil in the oil tank 20 can enter the oil chamber 111 of the oil evaporation device 10 through the first oil supply channel 40. The two ends of the second oil supply channel 50 are respectively connected to the oil outlet 21 of the oil tank 20 and the main combustion chamber 32 of the engine 30, so that the oil tank 20 can supply oil to the main combustion chamber 32 of the engine 30, so that the fuel burns in the main combustion chamber 32. The energy released by combustion causes the gas in the cylinder to expand rapidly, pushing the piston downward, thereby driving the crankshaft of the engine 30 to rotate and output mechanical energy.

[0045] In an embodiment of the present invention, the oil tank 20 can supply oil to the oil evaporation device 10 and the main combustion chamber 32 of the engine 30 respectively through the first oil supply channel 40 and the second oil supply channel 50. This can simultaneously ensure the working reliability of the oil evaporation device 10 and the main combustion chamber 32 of the engine 30. In addition, the installation and connection of the first oil supply channel 40 is relatively simple and will not increase the overall volume of the engine 30, which can facilitate the arrangement of the oil evaporation device 10 in the oil and gas supply system 100 of the engine.

[0046] According to some embodiments of the present invention, Figure 1 As shown, the first oil supply channel 40 is provided with a first flow controller 60. Specifically, the first flow controller 60 can control the amount of oil pumped from the oil tank 20 into the oil chamber 111 through the first oil supply channel 40. By controlling and adjusting the amount of oil entering the oil chamber 111, such a configuration can control the equivalence ratio of the oil-gas mixture generated in the oil evaporation device 10. In this way, when the engine 30 is in different starting conditions, oil-gas mixtures with different equivalence ratios can be provided to the pre-combustion chamber 31 according to the actual conditions of each working condition, thereby making the engine's oil and gas supply system 100 suitable for starting the engine 30 under various working conditions. Among them, the starting conditions of the engine 30 include but are not limited to cold start.

[0047] According to other embodiments of the present invention, the second oil supply channel 50 is provided with a first flow controller 60. Specifically, the first flow controller 60 can control the amount of oil pumped from the fuel tank 20 into the main combustion chamber 32 of the engine 30 through the first oil supply channel 40. By controlling and regulating the amount of oil entering the main combustion chamber 32 of the engine 30, the kinetic energy generated by the combustion of the engine 30 can be controlled. In this way, when the vehicle is in different operating conditions, different amounts of fuel can be provided to the main combustion chamber 32 of the engine 30 according to the power required by the vehicle under each operating condition. Such a configuration can ensure the normal operation of the engine 30 under various operating conditions. Among them, the operating conditions of the engine 30 include but are not limited to cold start.

[0048] According to some further embodiments of the present invention, the first oil supply channel 40 and the second oil supply channel 50 are both provided with a first flow controller 60. Specifically, the first flow controller 60 can control the amount of oil pumped into the oil chamber 111 by the oil tank 20 through the first oil supply channel 40. By controlling and adjusting the amount of oil entering the oil chamber 111, such a setting can control the equivalence ratio of the oil-gas mixture generated in the oil evaporation device 10, so that when the engine 30 is in different starting conditions, the oil-gas mixture with different equivalence ratios can be provided to the pre-combustion chamber 31 according to the actual conditions of each working condition, thereby making the engine's oil and gas supply system 100 suitable for starting the engine 30 under various working conditions. Among them, the starting conditions of the engine 30 include but are not limited to cold start.

[0049] Furthermore, the first flow controller 60 can control the amount of oil pumped from the fuel tank 20 into the main combustion chamber 32 of the engine 30 via the first oil supply passage 40. By controlling and regulating the amount of oil entering the main combustion chamber 32 of the engine 30, the kinetic energy generated by combustion in the engine 30 can be controlled. This allows different amounts of fuel to be supplied to the main combustion chamber 32 of the engine 30 according to the power required by the vehicle in different operating conditions. This arrangement ensures the normal operation of the engine 30 under various operating conditions, including but not limited to cold starts.

[0050] Combine Figure 1 As shown, the oil and gas supply system 100 of the engine includes a first supply flow channel 70 and a second supply flow channel 80. The two ends of the first supply flow channel 70 are respectively connected to the external air and the air intake end 122 of the gas flow channel 12, and the two ends of the second supply flow channel 80 are respectively connected to the external air and the engine 30. The first supply flow channel 70 and the second supply flow channel 80 are arranged in parallel.

[0051] Specifically, the two ends of the first air supply channel 70 are respectively connected to the external air and the air inlet end 122 of the gas channel 12, so that the external air can enter the gas channel 12 through the first air supply channel 70, and mix with the heated and vaporized oil mist particles in the oil evaporation device 10 to form an oil-gas mixture, and then enter the pre-combustion chamber 31 through the air outlet end 121 of the gas channel 12.

[0052] Furthermore, both ends of the second air supply duct 80 are connected to the external air and the engine 30 respectively. When the cylinder of the engine 30 is in the intake stroke, the external air can enter the main combustion chamber 32 of the engine 30 through the second air supply duct 80 to prepare for subsequent combustion.

[0053] Furthermore, the first and second air supply ducts 70, 80 are arranged in parallel, allowing external air to enter the gas flow channel 12 and the main combustion chamber 32 of the engine 30, respectively. This simplifies the air path of the oil evaporation device 10 within the engine's oil and gas supply system 100, facilitating its placement within the engine's oil and gas supply system 100. It should be noted that air filters 120 are provided at the ends of both the second and first air supply ducts 80, 70, closest to the external air, to ensure the cleanliness of the air entering the engine's oil and gas supply system 100.

[0054] In the embodiment of the present invention, in the second air supply flow passage 80 , a throttle valve 34 and an intake manifold 33 are sequentially connected between the air filter 120 and the air intake of the engine 30 .

[0055] According to some embodiments of the present invention, Figure 1As shown, the first air supply passage 70 is provided with a second flow controller 90. Specifically, the second flow controller 90 can control the amount of air entering the first air supply passage 70, and thus can control and adjust the amount of air entering the gas passage 12. This configuration can control the equivalence ratio of the oil-air mixture generated in the oil evaporation device 10. In this way, when the engine 30 is in different starting conditions, the oil-air mixture with different equivalence ratios can be provided to the pre-combustion chamber 31 according to the actual conditions of each operating condition, thereby making the engine oil and air supply system 100 suitable for starting the engine 30 under various operating conditions. The starting conditions of the engine 30 include, but are not limited to, cold starts.

[0056] According to other embodiments of the present invention, Figure 1 As shown, the second air supply passage 80 is provided with a second flow controller 90. Specifically, the second flow controller 90 can control the amount of air entering the second air supply passage 80, and thus can control and adjust the amount of air entering the main combustion chamber 32 of the engine 30. This configuration can provide different amounts of air to the main combustion chamber 32 when the engine 30 is in different operating conditions, thereby facilitating improved fuel economy.

[0057] According to further embodiments of the present invention, both the first air supply passage 70 and the second air supply passage 80 are provided with a second flow controller 90. Specifically, the second flow controller 90 can control the amount of air entering the first air supply passage 70, and thereby control and adjust the amount of air entering the gas passage 12. This configuration can control the equivalence ratio of the oil-gas mixture generated in the oil evaporation device 10. Thus, when the engine 30 is in different starting conditions, oil-gas mixtures of different equivalence ratios can be provided to the pre-combustion chamber 31 according to the actual conditions of each operating condition, thereby making the engine's oil and gas supply system 100 suitable for starting the engine 30 under various operating conditions. The starting conditions of the engine 30 include, but are not limited to, cold starting.

[0058] Furthermore, the second flow controller 90 can control the amount of air entering the second air supply duct 80, and thus control and adjust the amount of air entering the main combustion chamber 32 of the engine 30. With such a setting, different amounts of air can be provided to the main combustion chamber 32 when the engine 30 is in different operating conditions, which is beneficial to improving fuel economy.

[0059] According to an embodiment of the present invention, the engine oil and gas supply system 100 further includes a control unit electrically connected to the heating element 132 of the oil evaporation device 10 to selectively control the heating of the heating element 132. With this arrangement, during a cold start of the engine 30, the control unit can rapidly control the operation of the heating element 132 to rapidly heat the oil on the oil adsorbing element 131. This not only improves the response rate of the oil evaporation device 10 but also enhances the efficiency of oil vaporization.

[0060] Furthermore, the control unit can also be electrically connected to the first flow controller 60 and the second flow controller 90, so that the temperature rise rate of the oil evaporation device 10, the oil flow entering the oil evaporation device 10 and the engine 30, and the filtered air flow entering the oil evaporation device 10 and the engine 30 can be intelligently adjusted under the cold start condition of the engine 30. With such a setting, dynamic control of the air supply from the oil evaporation device 10 to the precombustion chamber 31 can be achieved, and dynamic control of the fuel combustion efficiency in the engine 30 can be achieved, thereby achieving stable ignition of the precombustion chamber 31 under various operating conditions of the vehicle and improving fuel economy under various operating conditions of the vehicle.

[0061] It should be noted that various operating conditions of the vehicle include but are not limited to cold starting of the engine 30 .

[0062] According to an embodiment of the present invention, a vehicle may include an oil and gas supply system 100 for an engine. When the vehicle is cold-started at low temperatures, the fuel flows out of the fuel tank 20 through the oil pump 130 and is divided into two paths. Most of the fuel in one path is supplied to the injector 321 of the main combustion chamber 32 through the second oil supply channel 50, and a small amount of fuel in one path is supplied to the oil evaporation device 10 through the first oil supply channel 40. A certain amount of oil enters the oil evaporation device 10 through the first flow controller 60 and fills the annular oil cavity 111. The hollow porous ceramic built into the oil evaporation device 10 absorbs oil from the annular oil cavity 111 due to capillary action. A spiral electric heating wire is buried inside the hollow porous ceramic. When the control unit sends a heating signal, the spiral electric heating wire starts to heat, and the oil adsorbed in the hollow porous ceramic absorbs heat and is vaporized.

[0063] During the intake stroke of engine 30, the pressure in main combustion chamber 32 decreases. The pressure inside pre-combustion chamber 31 is affected by the pressure in main combustion chamber 32 and the design of the jet nozzles, resulting in a negative pressure relative to the pressure inside oil evaporation device 10. Part of the filtered air is drawn into oil evaporation device 10 through second flow controller 90. The control unit sends a heating signal to the spiral electric heating wire and controls its temperature rise rate, rapidly heating and vaporizing the liquid oil adsorbed by the hollow porous ceramic. The vaporized oil mist particles are carried away by the gas flow channel 12 within the hollow porous ceramic, forming a fuel-rich oil-air mixture that is introduced into pre-combustion chamber 31. During the compression stroke of the engine 30, the lean oil-gas mixture in the main combustion chamber 32 enters the pre-combustion chamber 31 through the jet nozzle of the pre-combustion chamber 31, and mixes with the rich oil-gas mixture in the pre-combustion chamber 31 to form an oil-gas mixture with an equivalence ratio of 1, or forms a rich oil-gas mixture. The oil-gas mixture collected in the pre-combustion chamber 31 is ignited to form a jet flame, thereby realizing lean combustion in the main combustion chamber 32 and improving combustion efficiency.

[0064] In summary, the oil evaporation device 10 in the embodiment of the present invention is relatively small in size, and the modification to the oil and gas supply system 100 of the engine is relatively small. The oil evaporation device 10 can fully vaporize the oil and provide a uniformly mixed oil-rich oil-gas mixture for the pre-combustion chamber 31. Furthermore, by controlling the amount of oil and air entering the oil evaporation device 10 through the control unit, and combining the temperature rise rate of the spiral electric heating wire, the air-fuel ratio in the pre-combustion chamber 31 can be precisely controlled and dynamically regulated, meeting the requirements of active control of the ignition energy of the pre-combustion chamber 31, significantly improving the cold start performance of the engine 30, and realizing efficient work of the engine 30 under normal operating conditions.

[0065] 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", "circumferential", "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, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0066] 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.

[0067] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. An oil evaporation device, characterized in that: include: a housing, wherein an oil cavity is provided in the housing; A heating component is arranged in the shell, the heating component is connected to the oil chamber, a gas flow channel is provided in the shell, the gas outlet end of the gas flow channel is suitable for being connected to the pre-combustion chamber of the engine, and the heating component is connected to the gas flow channel.

2. The oil evaporation device according to claim 1, characterized in that: The heating component includes an oil adsorbing component and a heating component. The oil adsorbing component is communicated with the oil cavity, and the heating component is arranged in the oil adsorbing component.

3. The oil evaporation device according to claim 2, characterized in that: The oil cavity is annular and circumferentially arranged on the outside of the heating component. The oil adsorbent is annular and circumferentially arranged on the outside of the gas flow channel.

4. The oil evaporation device according to claim 2, characterized in that: The oil adsorbing element is hollow porous ceramic, and the heating element is a spiral electric heating wire.

5. The oil evaporation device according to claim 2, characterized in that: There are multiple heating elements, and the multiple heating elements are arranged at intervals in the oil adsorption element.

6. An oil and gas supply system for an engine, characterized in that: include: tank; an engine having a pre-combustion chamber; The oil evaporation device according to any one of claims 1 to 5, wherein the oil inlet of the oil chamber is connected to the oil outlet of the oil tank, the oil outlet of the oil chamber is connected to the oil inlet of the oil tank, the air inlet end of the gas flow channel is connected to the external air, and the air outlet end of the gas flow channel is connected to the pre-combustion chamber.

7. The oil and gas supply system of the engine according to claim 6, characterized in that: It includes a first oil supply channel and a second oil supply channel, the two ends of the first oil supply channel are respectively connected to the oil outlet of the oil tank and the oil inlet of the oil chamber, the two ends of the second oil supply channel are respectively connected to the oil outlet of the oil tank and the main combustion chamber of the engine, and the first oil supply channel and the second oil supply channel are arranged in parallel.

8. The oil and gas supply system of the engine according to claim 7, characterized in that: The first oil supply channel and / or the second oil supply channel is provided with a first flow controller.

9. The oil and gas supply system of the engine according to claim 6, characterized in that: It includes a first air supply duct and a second air supply duct, wherein the two ends of the first air supply duct are respectively connected to the external air and the air inlet end of the gas flow channel, and the two ends of the second air supply duct are respectively connected to the external air and the engine, and the first air supply duct and the second air supply duct are arranged in parallel.

10. The oil and gas supply system of the engine according to claim 9, characterized in that: The first air supply channel and / or the second air supply channel is provided with a second flow controller.

11. The oil and gas supply system of the engine according to claim 6, characterized in that: The device further comprises a control unit, which is electrically connected to the heating element of the oil evaporation device to selectively control the heating element to heat.

12. A vehicle, characterized in that: include: The oil and gas supply system for an engine according to any one of claims 6 to 11.

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