Evaporative device, gas supply system for a pre-chamber and vehicle

Abstract

This invention discloses an evaporation device, a pre-combustion chamber gas supply system, and a vehicle. The evaporation device, used in a vehicle, includes: a first flow channel adapted to communicate with the exhaust port of an ignition device; and a second flow channel for heat transfer with the first flow channel, adapted to input a liquid medium and at least output a gaseous medium. According to the evaporation device of this invention, the exhaust heat from the ignition device can be fully utilized to vaporize the medium in the second flow channel, achieving energy recovery and reducing energy waste. Furthermore, by supplying fuel vapor to the pre-combustion chamber of the ignition device through the second flow channel, a stable and continuous supply of fuel vapor can be provided to the pre-combustion chamber, thereby forming a stable and effective jet ignition, improving the thermal efficiency of the ignition device, and simultaneously achieving the recovery and utilization of waste heat in the exhaust gas of the ignition device, further improving the energy recovery rate of the ignition device system.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and in particular to an evaporation device, a pre-combustion chamber gas supply system, and a vehicle. Background Technology

[0002] In related technologies, traditional gaseous pre-combustion chambers are mainly designed for gas ignition systems, focusing only on the structural design of the pre-combustion chamber itself without considering how the device can be applied to gasoline or diesel ignition systems. Some solutions utilize fuel vapor adsorbed in the carbon canister for gas supply, but this cannot stably provide fuel vapor to the pre-combustion chamber. Other solutions use electric heating to heat the cylinder head and combustion chamber to promote fuel evaporation, increasing the overall vehicle energy consumption and making uniform heating difficult. Furthermore, exhaust heat is not effectively recovered and utilized, resulting in energy waste. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes an evaporation device that can utilize exhaust heat to convert a liquid medium into a gaseous medium.

[0004] The present invention also proposes a gas supply system for a pre-combustion chamber, wherein the gas supply system for the pre-combustion chamber includes the evaporation device described above.

[0005] The present invention also proposes a vehicle comprising the above-described air supply system for the pre-combustion chamber.

[0006] An evaporation apparatus according to an embodiment of the present invention is used in a vehicle and includes: a first flow channel adapted to communicate with an exhaust port of an ignition device; and a second flow channel for heat transfer with the first flow channel, the second flow channel being adapted to receive a liquid medium and to output at least a gaseous medium.

[0007] According to an embodiment of the present invention, the evaporation device, by providing a first flow channel and a second flow channel, wherein the first flow channel is connected to the exhaust port of the ignition device, and the second flow channel transfers heat with the first flow channel, and the second flow channel is suitable for inputting a liquid medium and at least outputting a gaseous medium, can fully utilize the exhaust heat of the ignition device to vaporize the medium in the second flow channel, achieving energy recovery and utilization, and reducing energy waste. Furthermore, by providing oil and gas to the pre-combustion chamber of the ignition device through the second flow channel, a stable and continuous supply of fuel vapor can be provided to the pre-combustion chamber, thereby forming a stable and effective jet ignition, improving the thermal efficiency of the ignition device, and simultaneously realizing the recovery and utilization of waste heat in the exhaust gas of the ignition device, further improving the energy recovery rate of the ignition device system.

[0008] According to some embodiments of the present invention, the first flow channel includes a first inlet adapted to communicate with the exhaust port of the ignition device.

[0009] According to some embodiments of the present invention, the first flow channel further includes a first outlet adapted to communicate with the vehicle's exhaust system.

[0010] According to some embodiments of the present invention, the second flow channel includes a second inlet adapted to be connected to an oil tank.

[0011] According to some embodiments of the present invention, the second flow channel further includes a second outlet adapted to communicate with the pre-combustion chamber.

[0012] According to some embodiments of the present invention, along the medium flow direction of the first flow channel, the first inlet and the first outlet of the first flow channel are located on opposite sides; and / or, along the medium flow direction of the second flow channel, the second inlet and the second outlet of the second flow channel are located on opposite sides; and / or, along the medium flow direction of the first flow channel or the second flow channel, the first inlet of the first flow channel and the second inlet of the second flow channel are located on opposite sides; and / or, along the medium flow direction of the first flow channel or the second flow channel, the first outlet of the first flow channel and the second outlet of the second flow channel are located on opposite sides.

[0013] According to some embodiments of the present invention, the second flow channel and the first flow channel transfer heat through a common flow channel wall, wherein the common flow channel wall is at least a portion of the flow channel wall of the second flow channel and / or at least a portion of the flow channel wall of the first flow channel.

[0014] In some embodiments of the present invention, both the first flow channel and the second flow channel are spiral-shaped.

[0015] In some embodiments of the present invention, the first flow channel at least partially encloses the second flow channel.

[0016] In some embodiments of the present invention, a first heat-conducting element is further included, wherein the first heat-conducting element is disposed within the first flow channel.

[0017] In some embodiments of the present invention, the first heat-conducting element is disposed around the first flow channel and connected to the outer wall of the first flow channel; and / or, the first heat-conducting element is a multilayer disposed at intervals along the length direction of the first flow channel; and / or, the first heat-conducting element is in the shape of a filamentous flower; and / or, the first heat-conducting element is a stainless steel or nickel-based alloy; and / or, the air permeability of the first heat-conducting element is 50%-70%; and / or, the thermal conductivity of the first heat-conducting element is greater than 15 W / m·K.

[0018] In some embodiments of the present invention, the first flow channel includes a housing, the housing being configured as the flow channel wall of the first flow channel.

[0019] In some embodiments of the present invention, the housing is provided with a first inlet communicating with the first flow channel; and / or, the housing is provided with a first outlet communicating with the first flow channel; and / or, the housing is provided with a second inlet communicating with the second flow channel; and / or, the housing is provided with a second outlet communicating with the second flow channel.

[0020] In some embodiments of the present invention, the first flow channel includes a first sub-flow channel and a second sub-flow channel.

[0021] In some embodiments of the present invention, the second sub-channel is disposed within the first sub-channel, and the second channel is located within the first sub-channel and outside the second sub-channel.

[0022] In some embodiments of the present invention, the second flow channel is spirally wound around the outer wall of the second sub-flow channel.

[0023] In some embodiments of the present invention, a mounting plate is further included, connecting the first sub-channel and the second sub-channel.

[0024] In some embodiments of the present invention, the mounting plate is disposed within the first sub-channel, and the mounting plate connects the first sub-channel and the second sub-channel.

[0025] In some embodiments of the present invention, the mounting plate is connected to the inner wall of the first sub-channel and to the second sub-channel.

[0026] In some embodiments of the present invention, the mounting plates are a plurality of plates spaced apart along the length direction of the first sub-channel.

[0027] In some embodiments of the present invention, at least two of the mounting plates are located at both ends of the second sub-channel along its length.

[0028] In some embodiments of the present invention, the evaporation apparatus includes at least one fusion chamber formed by the mounting plate and the channel wall of the first sub-channel and / or the channel wall of the second sub-channel.

[0029] In some embodiments of the present invention, at least one of the two ends of the second sub-channel along its length is provided with the fusion cavity, and the fusion cavity is in communication with the first sub-channel and the second sub-channel.

[0030] In some embodiments of the present invention, a second heat-conducting element is further included, wherein the second heat-conducting element is disposed within at least one of the first sub-channel and the second sub-channel.

[0031] In some embodiments of the present invention, the second heat-conducting element is a spiral extending along the length direction of the second sub-channel, and / or the second heat-conducting element is a stainless steel or nickel-based alloy; and / or the air permeability of the second heat-conducting element is 50%-70%; and / or the thermal conductivity of the second heat-conducting element is greater than 15 W / m·K.

[0032] In some embodiments of the present invention, the channel wall of the second sub-channel is a nanothermal film.

[0033] According to an embodiment of the present invention, a pre-combustion chamber gas supply system includes: an oil tank; an ignition device having a pre-combustion chamber and an exhaust port; and the aforementioned evaporation device, wherein a first flow channel is connected to the exhaust port, and a second flow channel is connected to the oil tank and the pre-combustion chamber.

[0034] According to the gas supply system of the pre-combustion chamber of the present invention, by setting the above-mentioned evaporation device, a first flow channel and a second flow channel are provided. The first flow channel is connected to the exhaust port of the ignition device, the second flow channel transfers heat with the first flow channel, and the second flow channel is connected to the fuel tank and the pre-combustion chamber. The waste heat from the exhaust of the ignition device can be used to heat the oil flowing from the fuel tank into the second flow channel, so that it evaporates and vaporizes and flows into the pre-combustion chamber. This can stably and continuously provide fuel vapor to the pre-combustion chamber, thereby forming a stable and effective jet ignition, improving the thermal efficiency of the ignition device, and realizing the recovery and utilization of waste heat in the exhaust gas of the ignition device, further improving the energy recovery rate of the ignition device system.

[0035] In some embodiments of the present invention, a heated nozzle injector is further included, the heated nozzle injector being used to inject fuel gas into the pre-combustion chamber, and the second outlet of the second flow channel is connected to the heated nozzle injector.

[0036] In some embodiments of the present invention, the pre-combustion chamber is disposed on the cylinder head of the ignition device.

[0037] In some embodiments of the present invention, the cylinder head of the ignition device has a cylinder head vaporization chamber, which is connected to the pre-combustion chamber, and the heated nozzle injector injects fuel gas into the pre-combustion chamber by injecting fuel gas into the cylinder head vaporization chamber.

[0038] In some embodiments of the present invention, a steam chamber is further included, the steam chamber being connected between the heated nozzle injector and the cylinder head vaporization chamber, the bottom of the steam chamber being in communication with the fuel tank.

[0039] In some embodiments of the present invention, it further includes: a steam element, wherein the steam element and the heating nozzle injector are disposed outside the ignition device and connected thereto, and the steam chamber is disposed on the steam element; or, the heating nozzle injector and the steam chamber are disposed on the cylinder head.

[0040] In some embodiments of the present invention, an air pump is provided between the second outlet and the heated nozzle injector.

[0041] In some embodiments of the present invention, a pressure sensor is provided between the air pump and the heated nozzle injector, the pressure sensor being used to detect the pressure at the outlet of the air pump.

[0042] In some embodiments of the present invention, the vehicle has an exhaust system, and a first outlet of the first flow channel is connected to the exhaust system.

[0043] In some embodiments of the present invention, a diversion valve is further included, wherein a first port of the diversion valve is connected to the exhaust port, and a second port of the diversion valve is connected to the second inlet of the second flow channel.

[0044] In some embodiments of the present invention, the third port of the diversion valve is connected to the inlet of the exhaust gas turbocharger.

[0045] In some embodiments of the present invention, the ignition device has a main combustion chamber that is connected to the fuel tank and the pre-combustion chamber.

[0046] In some embodiments of the present invention, an oil pump is included, wherein the inlet of the oil pump is connected to the oil tank, and the outlet of the oil pump is connected to the second inlet of the second flow channel.

[0047] In some embodiments of the present invention, the outlet of the oil pump is connected to the main combustion chamber.

[0048] In some embodiments of the present invention, a flow controller is further included, which is connected between the second inlet and the outlet of the oil pump.

[0049] In some embodiments of the present invention, an air supply line is further included, the air supply line being connected to the main combustion chamber to be adapted to supply air to the main combustion chamber.

[0050] The vehicle according to an embodiment of the present invention includes the air supply system of the pre-combustion chamber described above, or the evaporation device described above.

[0051] According to embodiments of the present invention, a vehicle is provided with the aforementioned pre-combustion chamber air supply system or the aforementioned evaporation device, and a first flow channel and a second flow channel are provided. The first flow channel is connected to the exhaust port of the ignition device, and the second flow channel transfers heat with the first flow channel. The second flow channel is suitable for inputting a liquid medium and is suitable for outputting at least a gaseous medium. This allows full utilization of the exhaust heat from the ignition device to vaporize the medium within the second flow channel, achieving energy recovery and utilization, and reducing energy waste. Furthermore, by supplying fuel vapor to the pre-combustion chamber of the ignition device through the second flow channel, a stable and continuous supply of fuel vapor can be provided to the pre-combustion chamber, thereby forming a stable and effective jet ignition, improving the thermal efficiency of the ignition device, and simultaneously achieving the recovery and utilization of waste heat in the exhaust gas of the ignition device, further improving the energy recovery rate of the ignition device system.

[0052] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0053] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0054] Figure 1 This is a schematic diagram of the gas supply system for the pre-combustion chamber according to an embodiment of the present invention;

[0055] Figure 2 This is a schematic diagram of the gas supply system for the pre-combustion chamber according to another embodiment of the present invention;

[0056] Figure 3 This is a connection diagram of an evaporation apparatus according to an embodiment of the present invention;

[0057] Figure 4 This is a cross-sectional view of an evaporation apparatus according to an embodiment of the present invention;

[0058] Figure 5 This is a cross-sectional view of an evaporation apparatus according to an embodiment of the present invention from another angle;

[0059] Figure 6 This is a cross-sectional view of an evaporation apparatus according to another embodiment of the present invention;

[0060] Figure 7 This is a cross-sectional view of an evaporation apparatus according to another embodiment of the present invention from another angle;

[0061] Figure 8 This is a top view of the first mounting plate of an evaporation apparatus according to another embodiment of the present invention;

[0062] Figure 9 This is a schematic diagram of the cylinder of the ignition device according to an embodiment of the present invention.

[0063] Figure label:

[0064] 100. Gas supply system for the pre-combustion chamber;

[0065] 10. Evaporation device;

[0066] 101. Shell; 103. First heat-conducting component; 106. Mounting plate; 107. First mounting plate; 1071. First hole; 1072. Second hole; 108. Second mounting plate; 109. Second heat-conducting component; 110. First flow channel; 1101. First sub-flow channel; 1102. Second sub-flow channel; 111. First inlet; 112. First outlet; 113. Second flow channel; 114. Second inlet; 115. Second outlet; 116. First cavity; 117. Second cavity; 118. Fusion cavity;

[0067] 20. Fuel tank;

[0068] 30. Ignition device; 301. Main combustion chamber; 302. Pre-combustion chamber; 3021. Jet nozzle; 3022. Spark plug; 303. Exhaust port; 304. Cylinder head; 305. Cylinder head vaporization chamber; 306. Piston; 307. Main combustion injector;

[0069] 401. Heated injector; 402. Air pump; 403. Pressure sensor; 404. Exhaust system; 405. Flow divider valve; 406. Exhaust turbocharger; 407. Oil pump; 408. Flow controller; 409. Three-way valve; 410. Exhaust pipe; 411. Air filter; 412. Throttle valve; 413. Intake manifold; 414. Check valve; 415. Air supply line. Detailed Implementation

[0070] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0071] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0072] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0073] The following is for reference. Figures 1-9 An evaporation apparatus 10 according to an embodiment of the present invention is described.

[0074] like Figure 1 As shown, for reference Figure 4 According to an embodiment of the present invention, the evaporation device 10 is used in a vehicle and includes a first flow channel 110 and a second flow channel 113.

[0075] Specifically, the first flow channel 110 is adapted to communicate with the exhaust port 303 of the ignition device 30, which can be an engine. The high-temperature exhaust gas from the ignition device 30 can enter the first flow channel 110. The second flow channel 113 transfers heat with the first flow channel 110. The second flow channel 113 is adapted to receive a liquid medium and at least output a gaseous medium. The high-temperature exhaust gas in the first flow channel 110 and the medium in the second flow channel 113 exchange heat with each other, at least partially vaporizing the liquid medium input into the second flow channel 113 into a gaseous medium. In this application, the exhaust heat of the ignition device 30 can be fully utilized to achieve energy recovery and utilization, reducing energy waste.

[0076] Additionally, oil and gas can be supplied to the pre-combustion chamber 302 of the ignition device 30 through the second flow channel 113. Liquid oil can enter the second flow channel 113, where the high-temperature exhaust gas in the first flow channel 110 and the oil in the second flow channel 113 exchange heat with each other, causing the oil to evaporate into a gaseous state, which then enters the pre-combustion chamber 302.

[0077] In this application, the ignition device 30 has a main combustion chamber 301 and a pre-combustion chamber 302. By setting the pre-combustion chamber 302, jet flame ignition can be achieved, resulting in greater ignition energy and faster flame propagation speed. This allows for stable ignition of the homogeneous lean-burn mixture in the main combustion chamber 301, effectively extending the lean-burn limit and further improving combustion efficiency. Furthermore, using gaseous fuel vapor as the gas source for the pre-combustion chamber 302 is more conducive to fuel-air mixing and allows for more precise temperature control within the pre-combustion chamber 302, which is crucial for optimizing the combustion process and reducing heat loss.

[0078] In addition, in this application, the evaporation device 10 utilizes the waste heat of the ignition device 30 to promote the evaporation and atomization of liquid fuel. Specifically, the waste heat of the exhaust gas of the ignition device 30 is used to heat a small amount of liquid fuel, so that it is completely vaporized and evaporated, which can produce 100% pure fuel vapor. This makes it easy to control the air-fuel ratio in the pre-combustion chamber 302 and can stably and continuously provide fuel vapor to the pre-combustion chamber 302. At the same time, the waste heat in the exhaust gas of the ignition device 30 is recovered and utilized, further improving the energy recovery rate of the ignition device 30 system.

[0079] According to an embodiment of the present invention, the evaporation device 10, by providing a first flow channel 110 and a second flow channel 113, wherein the first flow channel 110 is connected to the exhaust port 303 of the ignition device 30, and the second flow channel 113 transfers heat with the first flow channel 110, and the second flow channel 113 is suitable for inputting a liquid medium and at least outputting a gaseous medium, can fully utilize the exhaust heat of the ignition device 30 to vaporize the medium in the second flow channel 113, thereby achieving energy recovery and utilization and reducing energy waste. In addition, by providing oil and gas to the pre-combustion chamber 302 of the ignition device through the second flow channel 113, fuel vapor can be stably and continuously supplied to the pre-combustion chamber 302, thereby forming a stable and effective jet ignition, improving the thermal efficiency of the ignition device 30, and simultaneously realizing the recovery and utilization of waste heat in the exhaust gas of the ignition device 30, further improving the energy recovery rate of the ignition device 30 system.

[0080] In some embodiments of the present invention, such as Figure 1 As shown, for reference Figure 4The first flow channel 110 includes a first inlet 111, which is adapted to communicate with the exhaust port 303 of the ignition device 30. Fluid in the first flow channel 110 can flow in through the first inlet 111, and the high-temperature exhaust gas from the ignition device 30 can enter the first flow channel 110 through the first inlet 111 and exchange heat with the medium in the second flow channel 113, and facilitate the connection between the exhaust port 303 of the ignition device 30 and the first flow channel 110.

[0081] In some embodiments of the present invention, such as Figure 1 As shown, for reference Figure 4 The first flow channel 110 also includes a first outlet 112, which is adapted to be connected to the vehicle's exhaust system 404. Exhaust gas entering the first flow channel 110 can flow out through the first outlet 112 and enter the exhaust system 404. The exhaust system 404 can convert NOx in the exhaust gas into nitrogen gas for discharge, reducing environmental pollution. At the same time, it is connected to the exhaust system 404 and the first flow channel 110.

[0082] In some embodiments of the present invention, such as Figure 1 As shown, for reference Figure 4 The second flow channel 113 includes a second inlet 114, which is adapted to be connected to the oil tank 20. The oil in the oil tank 20 can enter the second flow channel 113 through the second inlet 114. The high-temperature exhaust in the first flow channel 110 and the oil in the second flow channel 113 exchange heat with each other, causing the oil to evaporate into a gaseous state. The gaseous oil discharged from the second flow channel 113 can enter the pre-combustion chamber 302, where jet flame ignition is achieved. At the same time, the connection between the second flow channel 113 and the oil tank 20 is realized.

[0083] Optionally, a check valve 414 is provided at the second inlet 114 to prevent oil from flowing back into the oil tank 20.

[0084] In some embodiments of the present invention, such as Figure 1 As shown, for reference Figure 4 The second flow channel 113 also includes a second outlet 115, which is adapted to communicate with the pre-combustion chamber 302. The gas or oil-gas mixture vaporized in the second flow channel 113 can flow to the pre-combustion chamber 302 through the second outlet 115, where jet flame ignition is achieved, thus realizing the connection between the second flow channel 113 and the pre-combustion chamber 302.

[0085] In some embodiments of the present invention, reference is made to Figure 4As shown, along the medium flow direction of the first flow channel 110, the first inlet 111 and the first outlet 112 of the first flow channel 110 are located on opposite sides, and along the medium flow direction of the second flow channel 113, the second inlet 114 and the second outlet 115 of the second flow channel 113 are located on opposite sides.

[0086] In some embodiments of the present invention, reference is made to Figure 4 As shown, the length directions of the first flow channel 110 and the second flow channel 113 can be the same, and the flow directions of the fluids in the first flow channel 110 and the second flow channel 113 are opposite. Specifically, along the medium flow direction of the first flow channel 110 or the second flow channel 113, the first inlet 111 of the first flow channel 110 and the second inlet 114 of the second flow channel 113 are located on opposite sides, and along the medium flow direction of the first flow channel 110 or the second flow channel 113, the first outlet 112 of the first flow channel 110 and the second outlet 115 of the second flow channel 113 are located on opposite sides. This can improve the heat exchange effect of the fluid in the first flow channel 110 and the fluid in the second flow channel 113, better heat and evaporate the oil in the second flow channel 113, ensure the generation of 100% pure fuel oil vapor, and help control the air-fuel ratio in the pre-combustion chamber 302.

[0087] In some embodiments of the present invention, the second flow channel 113 and the first flow channel 110 transfer heat through a common flow channel wall, which is at least a portion of the flow channel wall of the second flow channel 113 and / or at least a portion of the flow channel wall of the first flow channel 110. It is understood that the common flow channel wall may be only a portion of the flow channel wall of the second flow channel 113; or the common flow channel wall may be only a portion of the flow channel wall of the first flow channel 110; or the common flow channel wall may be at least a portion of both the flow channel wall of the second flow channel 113 and the flow channel wall of the first flow channel 110. This can improve the heat exchange efficiency of the first flow channel 110 and the second flow channel 113.

[0088] For example, in Figure 4 In the example shown, the common flow channel wall is the flow channel wall of the second flow channel 113; in Figure 6 In the example shown, the common flow channel wall is the flow channel wall of the second flow channel 113 and a portion of the flow channel wall of the first flow channel 110; in Figure 3 In the example shown, the common flow channel wall is the flow channel wall of the second flow channel 113 and the flow channel wall of the first flow channel 110.

[0089] In some embodiments of the present invention, such as Figure 3As shown, both the first flow channel 110 and the second flow channel 113 are spiral-shaped. The evaporator 10 is a spiral plate heat exchanger, comprising two parallel metal plates rolled into a spiral shape, forming the first flow channel 110 and the second flow channel 113. It can be understood that the evaporator 10 can be formed by rolling two parallel metal plates, creating two independent spiral channels inside, which are the internal channels of the first flow channel 110 and the second flow channel 113, separated by a very thin metal plate. Cold fluid (a small amount of liquid gasoline) and hot fluid (exhaust from the ignition device 30) flow within their respective spiral channels, exchanging heat through the metal plates.

[0090] Due to the high exhaust temperature of the ignition device 30, the spiral plate heat exchanger enhances heat transfer efficiency by increasing the turbulence and rotation effect of the exhaust flow, achieving highly efficient heat transfer and enabling the continuous and rapid evaporation and vaporization of the flowing liquid fuel. Furthermore, hybrid vehicles, due to their larger mechanical structure, occupy more vehicle space, leading to relatively limited interior space. The spiral plate heat exchanger, with its compact structure and high heat transfer efficiency, improves combustion efficiency and energy recovery rate while also considering the feasibility of the ignition device 30 system layout. Additionally, the vortex flow helps increase turbulence, reduces the stagnation area of ​​the fluid within the channels, decreases deposit formation, and facilitates cleaning and maintenance.

[0091] Furthermore, such as Figure 3 As shown, the first inlet 111 of the first flow channel 110 and the second outlet 115 of the second flow channel 113 are located at the spiral center of the evaporator 10, while the first outlet 112 of the first flow channel 110 and the second inlet 114 of the second flow channel 113 are located at the outer end of the spiral of the evaporator 10. This allows the fluids in the first flow channel 110 and the second flow channel 113 to flow in opposite directions, thereby improving heat exchange efficiency.

[0092] In some embodiments of the present invention, such as Figures 4-6 As shown, the first flow channel 110 is configured to at least partially enclose the second flow channel 113, thereby improving the heat exchange effect of the first flow channel 110 and the second flow channel 113, and also helping to reduce the volume of the evaporation device 10.

[0093] exist Figure 4 In the example shown, the first flow channel 110 is a single integral flow channel, and the second flow channel 113 is located inside the first flow channel 110. The second flow channel 113 and the first flow channel 110 transfer heat through a shared flow channel wall. The hot fluid (exhaust from the ignition device 30) is located in the outer layer, and the cold fluid (a small amount of liquid gasoline) is located in the inner layer. The hot fluid surrounds the cold fluid and heats the cold fluid, resulting in high heat exchange efficiency.

[0094] In addition, hybrid vehicles occupy more vehicle space due to their larger mechanical structure, resulting in relatively tight interior space. The evaporation device 10 in this embodiment has a compact structure and high heat transfer efficiency, which improves combustion efficiency and energy recovery rate while taking into account the feasibility of the ignition device 30 system layout.

[0095] In some embodiments of the present invention, such as Figure 4 and Figure 5 As shown, the evaporation device 10 also includes a first heat-conducting element 103, which is disposed within the first flow channel 110. This significantly improves the heat transfer coefficient without increasing resistance. Simultaneously, the first heat-conducting element 103 greatly enhances the anti-fouling capability of the first flow channel 110.

[0096] Optionally, such as Figure 4 and Figure 5 As shown, the first heat-conducting element 103 is arranged around the first flow channel 110 and connected to the outer wall of the first flow channel 110, thereby increasing the heat exchange effect.

[0097] Optionally, such as Figure 4 and Figure 5 As shown, the first heat-conducting element 103 is a multilayer structure spaced apart along the length of the first flow channel 110, which can increase the heat exchange effect.

[0098] Optionally, such as Figure 4 and Figure 5 As shown, the first heat-conducting element 103 is in the shape of a filamentous flower. This can increase the heat exchange effect. The first heat-conducting element 103 can be made of various metal strips, bands, sheets, and wires, wound or twisted into a spiral shape, and the shape can be, but is not limited to, twisted iron, spiral wire, spiral band, and spiral sheet. This design enables the hot fluid to generate a complex three-dimensional flow with the superposition of radial displacement and spiral flow.

[0099] Optionally, the first heat-conducting element 103 is a metal element, such as stainless steel or nickel-based alloy, which can increase the heat exchange effect.

[0100] Optionally, the air permeability of the first heat-conducting element 103 is 50%-70%, thereby increasing the heat exchange effect.

[0101] Optionally, the thermal conductivity of the first heat-conducting element 103 is greater than 15 W / m·K, which can increase the heat exchange effect.

[0102] In some embodiments of the present invention, such as Figure 4 and Figure 5 As shown, the first flow channel 110 includes a housing 101, which is configured as the flow channel wall of the first flow channel 110. This facilitates the arrangement of the first flow channel 110 and the flow of liquid within the first flow channel 110.

[0103] Furthermore, such as Figure 4 and Figure 5 As shown, the housing 101 is provided with a first inlet 111 communicating with the first flow channel 110, a first outlet 112 communicating with the first flow channel 110, a second inlet 114 communicating with the second flow channel 113, and a second outlet 115 communicating with the second flow channel 113. This facilitates the connection of the first inlet 111 to the exhaust port 303 of the ignition device 30, the first outlet 112 to the vehicle's exhaust system 404, the second inlet 114 to the fuel tank 20, and the second outlet 115 to the pre-combustion chamber 302.

[0104] Furthermore, such as Figure 4 As shown, the first inlet 111 and the first outlet 112 are respectively located on the two end faces of the housing 101 along its length. This increases the flow path of exhaust gas within the housing and improves the heat exchange effect of the exhaust gas from the ignition device 30 and the oil in the second flow channel 113.

[0105] In addition, the first inlet 111 and the second inlet 114 are located on both ends of the housing 101 along its length, and the first outlet 112 and the second outlet 115 are located on both ends of the housing 101 along its length. This allows the fluid in the first flow channel 110 and the fluid in the second flow channel 113 to flow in opposite directions, improving the heat exchange effect of the exhaust from the ignition device 30 and the oil in the second flow channel 113.

[0106] In some embodiments of the present invention, such as Figure 6 and Figure 7 As shown, the first flow channel 110 includes a first sub-flow channel 1101 and a second sub-flow channel 1102. Dividing the first flow channel 110 into two flow channels improves heat exchange efficiency.

[0107] Furthermore, such as Figure 6 and Figure 7 As shown, the second sub-channel 1102 is located inside the first sub-channel 1101, and the second sub-channel 113 is located inside the first sub-channel 1101 and outside the second sub-channel 1102. In this embodiment, the evaporation device 10 employs a double-layer heating method. After the hot fluid (exhaust from the ignition device 30) enters, it is divided into two paths. One path enters the outer first sub-channel 1101, where the second sub-channel 113 is located, achieving primary heat exchange. The other path enters the inner second sub-channel 1102, where the second sub-channel 113 is heated secondaryly through the wall of the second sub-channel 1102, resulting in good heat exchange performance.

[0108] like Figure 6 and Figure 7As shown, the first flow channel 110 includes a housing 101, which is configured as the flow channel wall of the first flow channel 110. A first inlet 111 and a second inlet 114 are located on opposite sides of the length of the housing 101, and a first outlet 112 and a second outlet 115 are also located on opposite sides of the length of the housing 101. This allows the fluid in the first flow channel 110 and the fluid in the second flow channel 113 to flow in opposite directions, improving the heat exchange effect between the exhaust from the ignition device 30 and the oil in the second flow channel 113.

[0109] Of course, the present invention is not limited to this. The first sub-channel 1101 and the second sub-channel 1102 can also be arranged side by side or in parallel. The second channel 113 can be located in other positions, for example, it can be located between the first sub-channel 1101 and the second sub-channel 1102.

[0110] In some embodiments of the present invention, the second flow channel 113 is spirally wound around the outer wall of the second sub-flow channel 1102. The two ends of the second flow channel 113 respectively form a second inlet 114 and a second outlet 115. When the second flow channel 113 is located within the first sub-flow channel 1101, it increases the airflow disturbance in the first sub-flow channel 1101, while simultaneously creating a swirling flow of the cold fluid within the pipe, thus extending the flow path and heat exchange time of the cold fluid. Furthermore, the cold fluid advances in a rotating manner within the pipe, making it less prone to scaling and resulting in high heat exchange efficiency, leading to a more compact size compared to traditional shell-and-tube heat exchangers.

[0111] In some embodiments of the present invention, such as Figure 6 As shown, the evaporator 10 also includes a mounting plate 106 connecting the first sub-flow channel 1101 and the second sub-flow channel 1102. This allows the first sub-flow channel 1101 and the second sub-flow channel 1102 to be connected as a single unit. Further, as... Figure 6 As shown, the mounting plate 106 is disposed within the first sub-channel 1101, and the mounting plate 106 connects the first sub-channel 1101 and the second sub-channel 1102. This allows the structure of the evaporation device 10 to be more compact.

[0112] Specifically, such as Figure 6 As shown, the mounting plate 106 is connected to the inner wall of the first sub-flow channel 1101 and to the second sub-flow channel 1102. This facilitates the connection between the mounting plate 106 and the first sub-flow channel 1101. The mounting plate 106 and the first sub-flow channel 1101 can be welded together.

[0113] In some embodiments of the present invention, such as Figure 6 As shown, mounting plates 106 are arranged in multiple portions spaced apart along the length of the first sub-channel 1101. This improves the reliability of the connection between the first sub-channel 1101 and the second sub-channel 1102. Further, as... Figure 6As shown, at least two mounting plates 106 are located at both ends of the second sub-channel 1102 along its length. This increases the reliability of the connection between the first sub-channel 1101 and the second sub-channel 1102.

[0114] In some embodiments of the present invention, such as Figure 6 As shown, the evaporation device includes at least one fusion chamber 118, which is formed by a mounting plate and the flow wall of a first sub-flow channel 1101 and / or a second sub-flow channel 1102. It is understood that the fusion chamber 118 is formed by the mounting plate and the flow wall of the first sub-flow channel 1101, or by the mounting plate and the flow wall of the second sub-flow channel 1102, or by the mounting plate and the flow walls of both the first and second sub-flow channels 1101. Exhaust gas can be mixed within the fusion chamber 118.

[0115] Furthermore, such as Figure 6 As shown, at least one end of the second sub-channel 1102 along its length is provided with a fusion cavity 118, which is connected to the first sub-channel 1101 and the second sub-channel 1102. The exhaust gas mixed in the fusion cavity 118 can flow to the first sub-channel 1101 and the second sub-channel 1102 respectively, or the exhaust gas flowing out from the first sub-channel 1101 and the second sub-channel 1102 can be mixed in the fusion cavity 118.

[0116] exist Figure 6 In the specific example shown, there are two mounting plates 106, namely a first mounting plate 107 and a second mounting plate 108. The first mounting plate 107 and the second mounting plate 108 are disposed in the first sub-channel 1101. The first mounting plate 107 and the second mounting plate 108 are respectively located at both ends of the length direction of the second sub-channel 1102. The outer peripheral walls of the first mounting plate 107 and the second mounting plate 108 are connected to the channel wall of the first sub-channel 1101. The side of the first mounting plate 107 away from the second mounting plate 108 defines a fusion cavity 118 as a first cavity 116 with the inner wall of the first sub-channel 1101. The first cavity 116 communicates with one of the first inlet 111 and the first outlet 112. The first mounting plate 107 is provided with a first hole 1071 connecting the first cavity 116 and the first sub-channel 1101 and a second hole 1072 connecting the first cavity 116 and the second sub-channel 1102.

[0117] When the first chamber 116 is connected to the first inlet 111, the exhaust from the ignition device 30 entering from the first inlet 111 first enters the first chamber 116. After being evenly distributed in the first chamber 116, it can enter the first sub-channel 1101 through the first hole 1071 and the second sub-channel 1102 through the second hole 1072. This makes the fluid distribution in the first sub-channel 1101 and the second sub-channel 1102 more uniform and improves the heat exchange effect.

[0118] When the first chamber 116 is connected to the first outlet 112, the exhaust gas from the ignition device 30 flowing out from the first sub-channel 1101 and the second sub-channel 1102 can first enter the first chamber 116, and after being collected in the first chamber 116, it flows out through the first outlet 112. This makes the flow velocity of the exhaust gas from the ignition device 30 in the first sub-channel 1101 and the second sub-channel 1102 more uniform, thereby improving the heat exchange effect.

[0119] Optionally, such as Figure 8 As shown, the first hole 1071 consists of multiple spaced holes, and the second hole 1072 consists of multiple spaced holes.

[0120] The side of the second mounting plate 108 opposite to the first mounting plate 107 defines a fusion cavity 118, which is a second cavity 117, along with the inner wall of the first sub-channel 1101. The second cavity 117 communicates with the other of the first inlet 111 and the first outlet 112. The second mounting plate 108 is provided with a third hole connecting the second cavity 117 and the first sub-channel 1101, and a fourth hole connecting the second cavity 117 and the second sub-channel 1102. It can be understood that the second sub-channel 1102 has a first cavity 116 and a second cavity 117 on both sides, one of which communicates with the first inlet 111, and the other communicates with the first outlet 112. This can improve the heat exchange effect and fix the second sub-channel 1102.

[0121] Optionally, the third hole is a plurality of spaced holes, the fourth hole is a plurality of spaced holes, and the structure of the first mounting plate 107 and the structure of the second mounting plate 108 can be the same.

[0122] Optionally, the second sub-channel 1102 is welded to the first mounting plate 107 and the second mounting plate 108.

[0123] In some embodiments of the present invention, the evaporation apparatus 10 further includes a second heat-conducting element 109, which is disposed within at least one of the first sub-channel 1101 and the second sub-channel 1102. For example, in Figure 6 and Figure 7 In the example shown, only the second sub-channel 1102 is equipped with the second heat-conducting element 109. This increases the turbulence of the gaseous hot fluid, prolongs the heat exchange time, and improves the heat exchange efficiency. At the same time, the first heat-conducting element 103 can greatly improve the anti-fouling ability of the first channel 110.

[0124] Optionally, the second heat-conducting element 109 is a spiral extending along the length of the second sub-channel 1102. This design enables the hot fluid to generate a complex three-dimensional flow with the superposition of radial displacement and spiral flow, thereby improving the heat transfer effect.

[0125] Optionally, the second heat-conducting element 109 is a metal part, such as stainless steel or nickel-based alloy, which can increase the heat exchange effect.

[0126] Optionally, the air permeability of the second heat-conducting element 109 is 50%-70%, thereby increasing the heat exchange effect.

[0127] Optionally, the thermal conductivity of the second heat-conducting element 109 is greater than 15 W / m·K, which can increase the heat exchange effect.

[0128] In some embodiments of the present invention, the channel wall of the second sub-channel 1102 is a nano-thermal film. This can improve the heat exchange effect between the exhaust gas of the ignition device 30 and the oil, and improve the heating and evaporation efficiency of the oil.

[0129] Alternatively, the nanothermal film can be made of high-temperature resistant ceramic-based nanofilms, metal-based nanofilms, carbon-based nanofilms, etc., which can further improve the heat exchange efficiency of the solution while making it lighter.

[0130] The following describes the gas supply system 100 for the pre-combustion chamber according to an embodiment of the present invention.

[0131] like Figure 1 and 2 As shown, for reference Figure 9 According to an embodiment of the present invention, the pre-combustion chamber gas supply system 100 includes an oil tank 20, an ignition device 30 and the aforementioned evaporation device 10, wherein the ignition device 30 may be an engine.

[0132] Specifically, the ignition device 30 has a main combustion chamber 301, a pre-combustion chamber 302, and an exhaust port 303 that are connected. The pre-combustion chamber 302 and the main combustion chamber 301 are connected through a jet nozzle 3021, and the exhaust port 303 is connected to the main combustion chamber 301. The first flow channel 110 is connected to the exhaust port 303, and the second flow channel 113 is connected to the fuel tank 20 and the pre-combustion chamber 302. The fuel in the fuel tank 20 flows out of the fuel tank 20, and a small amount of gasoline enters the second flow channel 113 of the evaporation device 10. After being initially heated by the exhaust of the ignition device 30, it evaporates and vaporizes, and then supplies it to the pre-combustion chamber 302, providing the pre-combustion chamber 302 with 100% gasoline vapor.

[0133] According to an embodiment of the present invention, the pre-combustion chamber gas supply system 100, by setting the evaporation device 10 described above, provides a first flow channel 110 and a second flow channel 113. The first flow channel 110 is connected to the exhaust port 303 of the ignition device 30, and the second flow channel 113 transfers heat to the first flow channel 110. The second flow channel 113 is connected to the fuel tank 20 and the pre-combustion chamber 302. The waste heat from the exhaust of the ignition device 30 can be used to heat the oil flowing from the fuel tank 20 into the second flow channel 113, causing it to evaporate and vaporize before flowing into the pre-combustion chamber 302. This can stably and continuously provide fuel vapor to the pre-combustion chamber 302, thereby forming a stable and effective jet ignition, improving the thermal efficiency of the ignition device 30, and simultaneously realizing the recovery and utilization of waste heat in the exhaust gas of the ignition device 30, further improving the energy recovery rate of the ignition device 30 system.

[0134] Furthermore, such as Figure 1 and Figure 2 As shown, the first flow channel 110 has a first inlet 111, the second flow channel 113 has a second inlet 114 and a second outlet 115, the first inlet 111 is connected to the exhaust port 303, the second inlet 114 is connected to the oil tank 20, and the second outlet 115 is connected to the pre-combustion chamber 302.

[0135] In some embodiments of the present invention, the pre-combustion chamber air supply system 100 further includes a heated nozzle injector 401, which is used to inject fuel vapor into the pre-combustion chamber 302. The second outlet 115 of the second flow channel 113 is connected to the heated nozzle injector 401. Gasoline vapor, initially heated, is exhausted through the ignition device 30 in the second flow channel 113 and flows to the heated nozzle injector 401. The initially heated gasoline is reheated and sprayed out as it flows through the heated nozzle injector 401, and the droplets are broken and atomized to form a gasoline spray that enters the pre-combustion chamber 302, improving the gasoline vaporization effect and providing 100% gasoline vapor to the pre-combustion chamber 302. Under cold start conditions, by controlling the heating rate of the heated nozzle injector 401, the number of injections, and the injection quantity, sufficient fuel vapor in the pre-combustion chamber 302 is ensured to ignite the ignition device 30, thus improving the problem of difficult cold starts.

[0136] In addition, the heated nozzle injector 401 is small in size, technologically mature and low in cost, and only requires simple modifications to the cylinder head and oil circuit system, making it highly feasible.

[0137] Furthermore, such as Figure 1 and Figure 9As shown, the pre-combustion chamber 302 is located on the cylinder head 304 of the ignition device 30, which makes the structure of the ignition device 30 more compact. The cylinder head 304 of the ignition device 30 has a cylinder head vaporization chamber 305, which communicates with the pre-combustion chamber 302. The heated nozzle injector 401 injects fuel vapor into the cylinder head vaporization chamber 305 to inject fuel vapor into the pre-combustion chamber 302. Under fully warm-up conditions, the ignition device 30 can utilize the residual heat of the cylinder head to further heat the fuel spray, making it fully atomized, achieving tertiary heating, improving the vaporization effect of gasoline, and providing 100% gasoline vapor to the pre-combustion chamber 302.

[0138] In some embodiments of the present invention, the pre-combustion chamber's air supply system 100 further includes a steam chamber connected between the heated nozzle injector 401 and the cylinder head vaporization chamber 305, with the bottom of the steam chamber communicating with the fuel tank 20. A fine gasoline spray is formed by heating via the heated nozzle injector 401 and sprayed into the steam chamber. The steam chamber can store steam, and the gasoline vapor remaining in the steam chamber condenses into gasoline droplets after the ignition device 30 is shut down, allowing it to return to the fuel tank 20.

[0139] A reflux valve may be provided between the steam chamber and the oil tank 20 to control the opening and closing of the steam chamber and the oil tank 20. When the ignition device 30 is working, the reflux valve can be closed, and after the ignition device 30 is stopped, the reflux valve can be opened.

[0140] Specifically, the pre-combustion chamber's air supply system 100 also includes a steam element, which and the heated nozzle injector 401 are located outside and connected to the ignition device 30. The steam chamber is located on the steam element, or the heated nozzle injector 401 and the steam chamber are located on the cylinder head 304. This increases the versatility of the structure.

[0141] In some embodiments of the present invention, such as Figure 1 As shown, an air pump 402 is provided between the second outlet 115 and the heated nozzle injector 401, and a pressure sensor 403 is provided between the air pump 402 and the heated nozzle injector 401. The pressure sensor 403 is used to detect the pressure at the outlet of the air pump 402. The evaporation device 10 uses the waste heat from the exhaust of the ignition device 30 to heat the liquid fuel, causing it to completely vaporize and evaporate. The fuel can be introduced into the pre-combustion chamber 302 by the air pump 402. The pressure in the flow path can be detected by the pressure sensor 403, and the air pump 402 can be adjusted.

[0142] In some embodiments of the present invention, such as Figure 1 and Figure 2As shown, the vehicle has an exhaust system 404, and a first outlet 112 of a first flow channel 110 is connected to the exhaust system 404. Exhaust gas entering the first flow channel 110 can flow out through the first outlet 112 and enter the exhaust system 404. The exhaust system 404 can convert NOx in the exhaust gas into nitrogen gas for discharge, reducing environmental pollution, and is connected to both the exhaust system 404 and the first flow channel 110.

[0143] In some embodiments of the present invention, such as Figure 1 and Figure 2 As shown, the pre-combustion chamber's air supply system 100 also includes a diversion valve 405 and an exhaust gas turbocharger 406. The first port of the diversion valve 405 is connected to the exhaust port 303, the second port of the diversion valve 405 is connected to the second inlet 114 of the second flow channel 113, the inlet of the exhaust gas turbocharger 406 is connected to the third port of the diversion valve 405, and the outlet of the exhaust gas turbocharger 406 is connected to the exhaust system 404. The exhaust gas from the ignition device 30 is discharged from the exhaust pipe 410 and split into two paths via the diversion valve 405. One path of exhaust gas enters the evaporator 10, recovers waste heat, and is discharged at a lower temperature. The other path of exhaust gas enters the exhaust gas turbocharger 406 to perform work. The two paths of exhaust gas can be combined via a three-way valve 409 before entering the exhaust system 404.

[0144] In some embodiments of the present invention, the ignition device 30 has a main combustion chamber 301, which is connected to the fuel tank 20 and the pre-combustion chamber 302. The fuel in the fuel tank 20 flows out of the fuel tank 20 and is divided into two paths: one path (most of the gasoline) is supplied to the main combustion chamber 301, and the other path (a small amount of gasoline) enters the second flow channel 113 of the evaporation device 10. After being initially heated by the exhaust gas of the ignition device 30, the fuel evaporates and vaporizes, and then supplies the pre-combustion chamber 302 with 100% gasoline vapor.

[0145] The pre-combustion chamber's air supply system 100 also includes an air supply line 415, which is connected to the main combustion chamber 301 to supply air to the main combustion chamber 301. Specifically, the air supply line 415 is equipped with an air filter 411, a throttle valve 412, and an intake manifold 413. Along the air intake direction, the air filter 411, throttle valve 412, and intake manifold 413 are arranged sequentially, and the intake manifold 413 is connected to the intake duct of the main combustion chamber 301. Fresh air passes through the air filter 411 and throttle valve 412, and is drawn into the main combustion chamber 301 by the negative pressure of the intake manifold 413 during the intake stroke, forming a lean-burn mixture with a higher air-fuel ratio. Furthermore, during the compression stroke of the piston 306 in the cylinder, the lean-burn mixture enters the pre-combustion chamber 302 under pressure through the jet nozzle 3021 and mixes with gasoline vapor to form a fuel-gas mixture with actively adjustable air-fuel ratio, achieving lean combustion in the main combustion chamber 301 and improving combustion efficiency. The pre-combustion chamber 302 contains a spark plug 3022, and the mixture within the pre-combustion chamber 302 is either an equivalence ratio mixture (1) or a rich mixture, enabling jet ignition in the pre-combustion chamber 302 and lean combustion in the main combustion chamber 301.

[0146] In addition, the ignition device 30 has a main combustion injector 307, which is located on the cylinder block of the cylinder of the ignition device 30 and is connected to the fuel tank 20. The fuel tank 20 is connected to the main combustion chamber 301 through the main combustion injector 307, and injects fuel into the main combustion chamber 301 through the main combustion injector 307 to form a lean gasoline / air mixture.

[0147] Optionally, a pressure sensor 403 is provided on the oil tank 20 to detect the pressure inside the oil tank 20.

[0148] In this application, the spark plug 3022 in the pre-combustion chamber 302 ignites the lean gasoline / air mixture in the main combustion chamber 301 through the jet flame of the pre-combustion chamber 302, achieving lean combustion of most of the fuel in the main combustion chamber 301, further improving the combustion efficiency of the ignition device 30. Furthermore, the waste heat from the exhaust gas of the ignition device 30 is used to provide a stable supply of fuel vapor to the pre-combustion chamber 302, thereby forming a stable and effective jet ignition and improving the thermal efficiency of the ignition device 30. In addition, by controlling the amount of fuel and exhaust gas entering the evaporator 10, precise control of the air-fuel ratio in the pre-combustion chamber 302 is achieved, ensuring that the ignition device 30 always operates in the high-efficiency range under different operating conditions.

[0149] In some embodiments of the present invention, such as Figure 1As shown, the pre-combustion chamber air supply system 100 also includes an oil pump 407 and a flow controller 408. The inlet of the oil pump 407 is connected to the oil tank 20, and the outlet of the oil pump 407 is connected to the main combustion chamber 301 and the second inlet 114. The flow controller 408 is connected between the second inlet 114 and the outlet of the oil pump 407. The oil pump 407 can provide power for the oil in the oil tank 20 to enter the main combustion chamber 301 and the evaporator 10. In addition, by setting the flow controller 408, the amount of oil entering the evaporator 10 can be controlled, thereby controlling the amount of oil and gas entering the pre-combustion chamber 302 and effectively controlling the air-fuel ratio in the pre-combustion chamber 302.

[0150] In summary, the pre-combustion chamber gas supply system 100 of this application combines the advantages of high heat exchange efficiency, high vaporization rate, and compact structure, providing 100% gasoline vapor to the pre-combustion chamber 302. It integrates the evaporator 10 into the existing ignition device 30 oil circuit system, enabling dynamic regulation of the gas flow rate and meeting the requirements for active and precise control of the injection volume in the pre-combustion chamber 302. This, in turn, achieves dynamic regulation of the air-fuel ratio of the fuel mixture within the pre-combustion chamber 302. Simultaneously, it recovers and utilizes the waste heat from the exhaust gas of the ignition device 30, improving the energy recovery rate of the ignition device 30 system.

[0151] In addition, this application does not change the design of the ignition device 30 or only makes minor modifications to the cylinder head compared with the prior art, making full use of the waste heat of the ignition device 30 to provide 100% fuel vapor to the pre-combustion chamber 302, and achieving lean combustion in the main combustion chamber 301 through the active gaseous pre-combustion chamber 302, thereby improving the thermal efficiency of the ignition device 30.

[0152] The vehicle according to an embodiment of the present invention is described below.

[0153] The vehicle according to an embodiment of the present invention includes the air supply system 100 of the pre-combustion chamber described above or the evaporation device 10 described above.

[0154] According to the vehicle of the present invention, by providing the aforementioned pre-combustion chamber air supply system 100 or the aforementioned evaporation device, a first flow channel 110 and a second flow channel 113 are provided. The first flow channel 110 is connected to the exhaust port 303 of the ignition device 30, and the second flow channel 113 transfers heat with the first flow channel 110. The second flow channel 113 is suitable for inputting a liquid medium and suitable for outputting at least a gaseous medium. The exhaust heat of the ignition device 30 can be fully utilized to vaporize the medium in the second flow channel 113, realizing energy recovery and utilization, and reducing energy waste. In addition, by providing fuel vapor to the pre-combustion chamber 302 of the ignition device through the second flow channel 113, fuel vapor can be stably and continuously supplied to the pre-combustion chamber 302, thereby forming a stable and effective jet ignition, improving the thermal efficiency of the ignition device 30, and realizing the recovery and utilization of waste heat in the exhaust gas of the ignition device 30, further improving the energy recovery rate of the ignition device 30 system.

[0155] Other configurations and operations of the air supply system 100 for the vehicle and pre-combustion chamber according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0156] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0157] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An evaporation device, characterized by For use in vehicles and including: A first flow channel (110) is adapted to communicate with the exhaust port (303) of the ignition device (30); The second flow channel (113) transfers heat with the first flow channel (110), and the second flow channel (113) is adapted to receive a liquid medium and to output at least a gaseous medium.

2. The evaporation device of claim 1, wherein The first flow channel (110) includes a first inlet (111) adapted to communicate with the exhaust port (303) of the ignition device (30).

3. The evaporation apparatus according to claim 1, characterized in that, The first flow channel (110) further includes a first outlet (112) adapted to communicate with the vehicle's exhaust system (404).

4. The evaporation device of claim 1, wherein The second flow channel (113) includes a second inlet (114) adapted to be connected to the oil tank (20).

5. The evaporation apparatus according to claim 1, wherein The second flow channel (113) also includes a second outlet (115) adapted to communicate with the pre-combustion chamber (302).

6. The evaporation device of claim 1, wherein Along the medium flow direction of the first flow channel (110), the first inlet (111) and the first outlet (112) of the first flow channel (110) are located on opposite sides; And / or, along the medium flow direction of the second flow channel (113), the second inlet (114) and the second outlet (115) of the second flow channel (113) are located on opposite sides; And / or, along the medium flow direction of the first flow channel (110) or the second flow channel (113), the first inlet (111) of the first flow channel (110) and the second inlet (114) of the second flow channel (113) are located on opposite sides; And / or, along the medium flow direction of the first flow channel (110) or the second flow channel (113), the first outlet (112) of the first flow channel (110) and the second outlet (115) of the second flow channel (113) are located on opposite sides.

7. The evaporation device according to any of claims 1-6, wherein The second flow channel (113) and the first flow channel (110) transfer heat through a common flow channel wall, which is at least a portion of the flow channel wall of the second flow channel (113) and / or at least a portion of the flow channel wall of the first flow channel (110).

8. The evaporation device according to claim 7, characterized in that Both the first flow channel (110) and the second flow channel (113) are spiral-shaped.

9. The evaporation device of claim 7, wherein The first flow channel (110) is configured to at least partially enclose the second flow channel (113).

10. The evaporation device of claim 9, wherein Also includes: The first heat-conducting element (103) is disposed in the first flow channel (110).

11. The evaporation device of claim 10, wherein The first heat-conducting element (103) is disposed around the first flow channel (110) and connected to the outer wall of the first flow channel (110); And / or, the first heat-conducting element (103) is a multilayer structure spaced apart along the length of the first flow channel (110); And / or, the first heat-conducting element (103) is in the shape of a filamentous flower; And / or, the first heat-conducting element (103) is made of stainless steel or a nickel-based alloy; And / or, the air permeability of the first heat-conducting element (103) is 50%-70%; And / or, the thermal conductivity of the first heat-conducting element (103) is greater than 15 W / m·K.

12. The evaporation apparatus according to claim 9, wherein The first flow channel (110) includes a housing (101) configured as the flow channel wall of the first flow channel (110).

13. The evaporation device of claim 12, wherein The housing (101) is provided with a first inlet (111) that communicates with the first flow channel (110); And / or, the housing (101) is provided with a first outlet (112) communicating with the first flow channel (110); And / or, the housing (101) is provided with a second inlet (114) communicating with the second flow channel (113); And / or, the housing (101) is provided with a second outlet (115) communicating with the second flow channel (113).

14. The evaporation apparatus according to claim 9, wherein The first flow channel (110) includes a first sub-flow channel (1101) and a second sub-flow channel (1102).

15. The evaporation device of claim 14, wherein The second sub-channel (1102) is located inside the first sub-channel (1101), and the second channel (113) is located inside the first sub-channel (1101) and outside the second sub-channel (1102).

16. The evaporation apparatus according to claim 14, characterized by The second flow channel (113) is spirally wound around the outer wall of the second sub-flow channel (1102).

17. The evaporation apparatus of claim 15, wherein Also includes: Mounting plate (106) connects the first sub-channel (1101) and the second sub-channel (1102).

18. The evaporation apparatus of claim 17, wherein The mounting plate (106) is disposed in the first sub-channel (1101), and the mounting plate (106) connects the first sub-channel (1101) and the second sub-channel (1102).

19. The evaporation apparatus of claim 18, wherein The mounting plate (106) is connected to the inner wall of the first sub-channel (1101) and to the second sub-channel (1102).

20. The evaporation apparatus of claim 17, wherein The mounting plates (106) are a plurality of plates spaced apart along the length of the first sub-channel (1101).

21. The evaporation apparatus according to claim 20, wherein At least two of the mounting plates (106) are located at both ends of the second sub-channel (1102) along its length.

22. The evaporation apparatus of claim 17, wherein The evaporation apparatus includes at least one fusion chamber (118), which is formed by the mounting plate and the flow channel wall of the first sub-flow channel (1101) and / or the flow channel wall of the second sub-flow channel (1102).

23. The evaporation apparatus of claim 22, wherein At least one of the two ends of the second sub-channel (1102) along its length is provided with the fusion cavity (118), and the fusion cavity (118) is connected to the first sub-channel (1101) and the second sub-channel (1102).

24. The evaporation apparatus of claim 14, wherein Also includes: A second heat-conducting element (109) is disposed within at least one of the first sub-channel (1101) and the second sub-channel (1102).

25. The evaporation apparatus of claim 24, wherein The second heat-conducting element (109) is a spiral shape extending spirally along the length direction of the second sub-channel (1102). And / or, the second heat-conducting element (109) is made of stainless steel or a nickel-based alloy; And / or, the air permeability of the second heat-conducting element (109) is 50%-70%; And / or, the thermal conductivity of the second heat-conducting element (109) is greater than 15 W / m·K.

26. The evaporation apparatus of claim 14, wherein The channel wall of the second sub-channel (1102) is a nanothermal film.

27. A gas supply system for a prechamber, characterized by include: Fuel tank (20); An ignition device (30) having a pre-combustion chamber (302) and an exhaust port (303); The evaporation device (10) according to any one of claims 1-26, wherein the first flow channel (110) is connected to the exhaust port (303), and the second flow channel (113) is connected to the oil tank (20) and the pre-combustion chamber (302).

28. A gas supply system for a prechamber as claimed in claim 27, characterised in that Also includes: A heated nozzle injector (401) is used to inject fuel gas into the pre-combustion chamber (302), and the second outlet (115) of the second flow channel (113) is connected to the heated nozzle injector (401).

29. A gas supply system for a prechamber as claimed in claim 28, characterised in that, The pre-combustion chamber (302) is located on the cylinder head (304) of the ignition device (30).

30. The gas supply system for a prechamber of claim 29, wherein, The ignition device (30) has a cylinder head vaporization chamber (305) on its cylinder head (304), which is connected to the pre-combustion chamber (302). The heated nozzle injector (401) injects fuel gas into the pre-combustion chamber (302) by injecting fuel gas into the cylinder head vaporization chamber (305).

31. A gas supply system for a prechamber as claimed in claim 30, wherein Also includes: A steam chamber is connected between the heated nozzle injector (401) and the cylinder head vaporization chamber (305), and the bottom of the steam chamber is connected to the oil tank (20).

32. The gas supply system for a prechamber of claim 31, wherein, Also includes: A steam component, wherein the steam component and the heating nozzle injector (401) are disposed outside and connected to the ignition device (30), and the steam chamber is disposed on the steam component; Alternatively, the heated nozzle injector (401) and the steam chamber are located on the cylinder head (304).

33. The gas supply system for a prechamber of claim 28, wherein, An air pump (402) is provided between the second outlet (115) and the heated nozzle injector (401).

34. A gas supply system for a prechamber as claimed in claim 33, wherein A pressure sensor (403) is provided between the air pump (402) and the heated nozzle injector (401), and the pressure sensor (403) is used to detect the pressure at the outlet of the air pump (402).

35. The gas supply system for a prechamber of claim 27, wherein, The vehicle has an exhaust system (404), and the first outlet (112) of the first flow channel (110) is connected to the exhaust system (404).

36. The gas supply system for a prechamber of claim 27, wherein, Also includes: A diversion valve (405) is provided, wherein the first port of the diversion valve (405) is connected to the exhaust port (303), and the second port of the diversion valve (405) is connected to the second inlet (114) of the second flow channel (113).

37. The gas supply system for the pre-combustion chamber according to claim 36, characterized in that, The third port of the diverter valve (405) is connected to the inlet of the exhaust gas turbocharger (406).

38. The gas supply system for a prechamber of claim 27, wherein, The ignition device (30) has a main combustion chamber (301) which is connected to the fuel tank (20) and the pre-combustion chamber (302).

39. The gas supply system for a prechamber of claim 38, wherein, include: An oil pump (407) is provided, the inlet of which is connected to the oil tank (20), and the outlet of which is connected to the second inlet (114) of the second flow channel (113).

40. The gas supply system for a prechamber of claim 39, wherein, The outlet of the oil pump (407) is connected to the main combustion chamber (301).

41. The gas supply system for a prechamber of claim 39, wherein, Also includes: A flow controller (408) is connected between the second inlet (114) and the outlet of the oil pump (407).

42. The gas supply system for a prechamber of claim 38, wherein, Also includes: An air supply line (415) is connected to the main combustion chamber (301) to be adapted to supply air to the main combustion chamber (301).

43. A vehicle, characterized in that, It includes a gas supply system (100) for a pre-combustion chamber according to any one of claims 27-42, or an evaporation device (10) according to any one of claims 1-26.

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