A fuel rapid preheating atomizing device and an engine

Abstract

This invention discloses a rapid fuel preheating and atomization device and an engine, relating to the field of engine technology. The rapid fuel preheating and atomization device includes an atomizing cylinder, a fuel outlet, and a heater. One end of the atomizing cylinder has a fuel outlet. The fuel outlet is rotatably mounted inside the atomizing cylinder, with its rotation axis extending axially along the atomizing cylinder. The end of the fuel outlet away from the fuel outlet is rotatably connected to a fuel inlet pipe. The fuel outlet has a fuel delivery channel, and its outer wall has a first fuel outlet hole communicating with the fuel delivery channel. When the fuel outlet rotates, the first fuel outlet hole can spray fuel to different circumferential positions on the inner wall of the atomizing cylinder. The heater is located inside the atomizing cylinder and on the side of the fuel outlet closer to the fuel outlet. The rapid fuel preheating and atomization device and engine of this invention can further improve the fuel atomization effect and efficiency.

Description

Technical Field

[0001] This invention relates to the field of engine technology, and in particular to a fuel rapid preheating and atomization device and an engine. Background Technology

[0002] Before ignition, the fuel inside the engine needs to be atomized. Related technologies typically incorporate a preheating atomization device on the engine. This device includes an atomizing cylinder, one end of which is connected to an external fuel inlet pipe, and the other end to the engine's internal cavity. A heater is installed inside the atomizing cylinder. As the fuel passes through the atomizing cylinder, it is concentrated and heated by the heater, resulting in atomized fuel that is then sprayed into the engine. Compared to directly installing a heater inside the engine cavity for atomization, this method improves atomization effect and efficiency.

[0003] However, during use, it was found that the fuel passed through the atomizing cylinder too quickly, and some fuel was dripped directly into the engine before it could be atomized, thus the atomization effect and efficiency of the fuel need to be improved. Summary of the Invention

[0004] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a fuel rapid preheating and atomization device, which can further improve the atomization effect and efficiency of fuel.

[0005] The present invention also proposes an engine having the above-mentioned rapid fuel preheating and atomization device.

[0006] According to a first aspect of the present invention, a fuel rapid preheating atomization device includes an atomizing cylinder, an oil outlet, and a heater. One end of the atomizing cylinder has an oil outlet. The oil outlet is rotatably mounted inside the atomizing cylinder, and the rotation axis of the oil outlet extends along the axial direction of the atomizing cylinder. The end of the oil outlet away from the oil outlet is used to rotatably connect to an oil inlet pipe. An oil delivery channel is provided inside the oil outlet, and a first oil outlet hole communicating with the oil delivery channel is provided on the outer side wall of the oil outlet. When the oil outlet rotates, the first oil outlet hole can spray fuel to different circumferential positions on the inner side wall of the atomizing cylinder. The heater is disposed inside the atomizing cylinder and located on the side of the oil outlet closer to the oil outlet.

[0007] The fuel rapid preheating atomization device according to embodiments of the present invention has at least the following beneficial effects:

[0008] The atomizing cartridge is installed on the engine body. The fuel outlet of the atomizing cartridge is located inside the engine body, and the end of the atomizing cartridge away from the fuel outlet is located outside the engine body. The fuel inlet pipe is rotatably connected to the end of the fuel outlet that is away from the fuel outlet. The fuel inlet pipe delivers fuel into the fuel outlet. The fuel is sprayed into the atomizing cartridge through the first fuel outlet hole. The heater heats and atomizes the fuel in the atomizing cartridge. The atomized fuel can then be sprayed into the engine by the atomizing cartridge, and finally, ignition can be performed to start the engine. According to the fuel rapid preheating atomization device of the present invention, when the oil outlet rotates, the first oil outlet can spray fuel to different positions in the circumferential direction of the inner wall of the atomizing cylinder. The fuel flows along the inner wall of the atomizing cylinder. Since the fuel adheres to the inner wall of the atomizing cylinder, the fuel will not pass through the atomizing cylinder quickly, so that the heater can heat and atomize the fuel more fully. In addition, the sprayed fuel can cover the inner wall of the heater around the atomizing cylinder, and the fuel heating area is wider, so that the heater can heat and atomize the fuel more fully, thereby further improving the fuel atomization effect and efficiency.

[0009] According to some embodiments of the present invention, the heater extends axially along the atomizing cylinder, and the oil outlet portion is provided with a receiving hole at one end near the heater. The heater portion is located inside the receiving hole, and the inner sidewall of the receiving hole is provided with a second oil outlet hole communicating with the oil delivery channel. When the oil outlet portion rotates, the second oil outlet hole can spray fuel to different positions in the circumferential direction of the outer sidewall of the heater.

[0010] According to some embodiments of the present invention, the projection of the first oil outlet in the axial direction of the atomizing cylinder forms an angle α with the radial direction of the oil inlet end of the oil outlet portion passing through the first oil outlet, so as to drive the oil outlet portion to rotate when the fuel passes through the first oil outlet.

[0011] According to some embodiments of the present invention, the projection of the second oil outlet in the axial direction of the atomizing cylinder forms an angle β with the radial direction of the oil inlet end of the oil outlet portion passing through the second oil outlet, so that when the fuel passes through the second oil outlet, it can cooperate with the fuel passing through the first oil outlet to jointly drive the oil outlet portion to rotate.

[0012] According to some embodiments of the present invention, the included angle α satisfies: 30°≤α≤60°, and the included angle β satisfies: 30°≤β≤60°.

[0013] According to some embodiments of the present invention, the oil outlet portion has a plurality of blades on its end face near the heater, and the plurality of blades are evenly arranged along the circumference of the heater.

[0014] According to some embodiments of the present invention, the atomizing cylinder is provided with a preheating tube, the preheating tube is located on the side of the oil outlet that is away from the heater, the oil outlet is rotatably connected to one end of the preheating tube, the other end of the preheating tube is used to connect to the oil inlet pipe, and an electric heating wire is arranged around the preheating tube.

[0015] According to some embodiments of the present invention, the atomizing cylinder includes a first cylinder and a second cylinder that are detachably connected. Each of the first cylinder and the second cylinder has a limiting ring extending in a circumferential direction at one end that is close to each other. The outer wall of the oil outlet is provided with an annular flange extending in a circumferential direction. The annular flange is rotatably mounted between the two limiting rings.

[0016] According to some embodiments of the present invention, the inner wall of the atomizing cylinder is formed with at least one section of a first annular inclined wall extending circumferentially, the first annular inclined wall being located on the side of the oil outlet near the heater, and the outer wall of the heater being formed with at least one section of a second annular inclined wall extending circumferentially. From the oil outlet to the oil outlet, the diameter of the first annular inclined wall gradually decreases, and the diameter of the second annular inclined wall gradually increases.

[0017] An engine according to a second aspect of the present invention includes an engine body and a fuel rapid preheating atomization device as described in the first aspect of the present invention, wherein the fuel rapid preheating atomization device is installed on the engine body.

[0018] The engine according to embodiments of the present invention has at least the following beneficial effects:

[0019] By employing the fuel rapid preheating atomization device according to the first aspect of the present invention, when the fuel outlet rotates, the first fuel outlet can spray fuel to different circumferential positions on the inner wall of the atomizing cylinder. The fuel flows along the inner wall of the atomizing cylinder. Due to the adhesion between the fuel and the inner wall of the atomizing cylinder, the fuel will not pass through the atomizing cylinder quickly, allowing the heater to heat and atomize the fuel more fully. In addition, the sprayed fuel can cover the inner wall of the heater around the atomizing cylinder, resulting in a wider heating area for the fuel, which allows the heater to heat and atomize the fuel more fully, thereby further improving the fuel atomization effect and efficiency.

[0020] 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

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0022] Figure 1 This is a schematic diagram of the overall structure of the engine of the present invention;

[0023] Figure 2 This is a schematic diagram of the overall structure of the fuel rapid preheating atomization device of the present invention;

[0024] Figure 3 for Figure 2 A partial sectional view;

[0025] Figure 4 This is a schematic diagram showing the arrangement of the first and second oil outlets.

[0026] Icon labels:

[0027] Fuel rapid preheating atomization device 10;

[0028] Atomizing cylinder 100; oil outlet 101; first cylinder body 102; second cylinder body 103; limiting ring 104; first annular inclined wall 105;

[0029] Oil outlet 200; oil delivery channel 201; first oil outlet 202; receiving hole 203; second oil outlet 204; blade 205; annular flange 206;

[0030] Heater 300; Second annular inclined wall 301;

[0031] Preheating tube 400;

[0032] Heating wire 500;

[0033] Engine body 20. Detailed Implementation

[0034] 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.

[0035] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to 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 this invention.

[0036] In the description of this invention, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features or their sequential relationship.

[0037] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0038] The following is for reference. Figures 1 to 4 The present invention describes a fuel rapid preheating atomization device 10 and an engine according to embodiments thereof.

[0039] According to the first aspect of the present invention, the fuel rapid preheating atomization device 10, such as Figures 2 to 4 As shown, it includes an atomizing cylinder 100, an oil outlet 200, and a heater 300.

[0040] The atomizing cylinder 100 has an oil outlet 101 at one end. The atomizing cylinder 100 is installed on the engine body 20 of the engine. The oil outlet 101 of the atomizing cylinder 100 is located in the inner cavity of the engine body 20. The end of the atomizing cylinder 100 away from the oil outlet 101 can be located outside the engine body 20.

[0041] The oil outlet section 200 is rotatably mounted inside the atomizing cylinder 100. The rotation axis of the oil outlet section 200 extends along the axial direction of the atomizing cylinder 100 and is parallel to the axial direction of the oil outlet section 200. The end of the oil outlet section 200 away from the oil outlet 101 is rotatably connected to an external oil inlet pipe. The oil outlet section 200 is provided with an oil delivery channel 201. The oil inlet of the oil delivery channel 201 is connected to the oil inlet pipe. The outer side wall of the oil outlet section 200 is provided with a first oil outlet hole 202 that connects to the oil delivery channel 201. The oil outlet end of the first oil outlet hole 202 faces the inner side wall of the atomizing cylinder 100. When the oil outlet section 200 rotates, the first oil outlet hole 202 can spray fuel to different positions in the circumferential direction of the inner side wall of the atomizing cylinder 100.

[0042] The heater 300 is located inside the atomizing cylinder 100 and on the side of the oil outlet 200 near the oil outlet 101. The heater 300 can be an electric heating tube, an electric heating rod, an electric heating plate, a resistance wire, or other suitable heater 300.

[0043] Fuel is supplied from the inlet pipe to the outlet 200. The fuel is sprayed into the atomizing cylinder 100 through the first outlet hole 202. The heater 300 heats and atomizes the fuel in the atomizing cylinder 100. The atomized fuel can then be sprayed into the engine by the atomizing cylinder 100, and finally ignition can be performed to start the engine.

[0044] According to the fuel rapid preheating atomization device 10 of the present invention, when the oil outlet 200 rotates, the first oil outlet 202 can spray fuel to different positions in the circumferential direction of the inner wall of the atomizing cylinder 100. The fuel flows along the inner wall of the atomizing cylinder 100. Since the fuel adheres to the inner wall of the atomizing cylinder 100, the fuel will not pass through the atomizing cylinder 100 quickly, so that the heater 300 can heat and atomize the fuel more fully. In addition, the sprayed fuel can cover the inner wall of the atomizing cylinder 100 around the heater 300, and the fuel heating area is wider, so that the heater 300 can heat and atomize the fuel more fully, thereby further improving the fuel atomization effect and efficiency, and thus improving the engine ignition efficiency.

[0045] In some embodiments of the present invention, such as Figure 3 and Figure 4 As shown, the heater 300 extends axially along the atomizing cylinder 100. The oil outlet 200 has a receiving hole 203 at one end near the heater 300. The heater 300 is partially located inside the receiving hole 203. The inner side wall of the receiving hole 203 has a second oil outlet 204 that connects to the oil delivery channel 201. When the oil outlet 200 rotates, the second oil outlet 204 can spray fuel to different positions in the circumferential direction on the outer side wall of the heater 300. When the oil outlet 200 rotates, in addition to being sprayed through the first oil outlet 202 to different circumferential positions on the inner wall of the atomizing cylinder 100, the fuel can also be sprayed through the second oil outlet 204 to different circumferential positions on the outer wall of the heater 300. The fuel flows along the outer wall of the heater 300. Due to the adhesion between the fuel and the outer wall of the heater 300, the fuel will not pass through the atomizing cylinder 100 quickly, allowing the heater 300 to heat and atomize the fuel more fully. In addition, the sprayed fuel can cover the outer wall of the heater 300, and the fuel heating area is wider, allowing the heater 300 to heat and atomize the fuel more fully, thereby further improving the fuel atomization effect and efficiency.

[0046] In some embodiments of the present invention, such as Figure 4As shown in the projection along the axial direction of the atomizing cylinder 100, the extending direction of the first oil outlet 202 forms an angle α with the radial direction of the oil outlet section 200 at the location of the oil inlet end passing through the first oil outlet 202. This allows the oil outlet section 200 to rotate when fuel passes through the first oil outlet 202. In other words, the extending direction of the first oil outlet 202 is not radial to the location of the oil inlet end of the oil outlet section 200, but rather offset to one side by an angle α relative to the radial direction of the location of the oil inlet end of the oil outlet section 202. Consequently, when fuel passes through the first oil outlet 202, the flow direction is towards one sidewall of the first oil outlet 202, thus applying a thrust to one sidewall. This thrust decomposes into a tangential force that can drive the oil outlet section 200 to rotate, thereby driving the oil outlet section 200 to rotate without the need for an additional drive mechanism to control the rotation of the oil outlet section 200. This results in a simple structure, convenient operation, and low cost.

[0047] It should be noted that in some other embodiments of the present invention, a drive mechanism may be additionally provided to control the rotation of the oil outlet 200, which will not be described in detail here.

[0048] In some embodiments of the present invention, such as Figure 4 As shown, in the projection of the atomizing cylinder 100 along the axial direction, the extension direction of the second oil outlet 204 forms an angle β with the radial direction of the oil inlet end of the oil outlet section 200 passing through the second oil outlet 204, so that when the fuel passes through the second oil outlet 204, it can work together with the fuel passing through the first oil outlet 202 to drive the oil outlet section 200 to rotate. In other words, the extension direction of the second oil outlet 204 is not radial to the position of the oil inlet end of the oil outlet 200 passing through the second oil outlet 204, but is offset to one side by an angle β relative to the radial direction of the position of the oil inlet end of the oil outlet 200 passing through the second oil outlet 204. As a result, when the fuel passes through the second oil outlet 204, the flow direction will be towards one of the side walls of the second oil outlet 204, thereby applying a thrust to one of the side walls of the second oil outlet 204. This thrust will decompose into a tangential force that can push the oil outlet 200 to rotate, thus working together with the fuel passing through the first oil outlet 202 to push the oil outlet 200 to rotate, making the effect of pushing the oil outlet 200 to rotate better.

[0049] It should be noted that the extension direction of the first oil outlet 202 and the extension direction of the second oil outlet 204 need to correspond so that the tangential force applied when the fuel passes through the second oil outlet 204 and the tangential force applied when the fuel passes through the first oil outlet 202 both push the oil outlet 200 to rotate in one direction, rather than in two opposite directions.

[0050] In some embodiments of the present invention, such as Figure 4As shown, the included angle α satisfies: 30°≤α≤60°, and the included angle β satisfies: 30°≤β≤60°. For example, the included angle α can be 30°, 40°, 50°, 60°, or other suitable degrees, and the included angle β can be 30°, 40°, 50°, 60°, or other suitable degrees. In this embodiment, the included angle α satisfies: 30°≤α≤60°, and the included angle β satisfies: 30°≤β≤60°. This setting not only facilitates the smooth injection of fuel from the first oil outlet 202 onto the inner wall of the atomizing cylinder 100, and the smooth injection of fuel from the second oil outlet 204 onto the outer wall of the heater 300, but also allows for a larger thrust exerted by the fuel on one side wall of the first oil outlet 202 and a larger thrust exerted by the fuel on one side wall of the second oil outlet 204, thereby improving the effect of rotating the oil outlet section 200.

[0051] In some embodiments of the present invention, such as Figure 3 As shown, the oil outlet 200 has multiple blades 205 on its end face near the heater 300, and the multiple blades 205 are evenly arranged along the circumference of the heater 300. For example, the number of blades 205 can be 2, 3, 4, 5, 6 or other suitable numbers. In this embodiment, multiple blades 205 are provided on the end face of the oil outlet 200 near the heater 300. When the oil outlet 200 rotates, the multiple blades 205 form a fan structure, which can then generate a fine airflow, thereby pushing the atomized oil in the atomizing cylinder 100 from the atomizing cylinder 100 into the engine body 20, preventing the atomized oil from accumulating in the atomizing cylinder 100 and affecting the atomization and ignition effects.

[0052] It should be noted that the oil outlet 200 rotates at a speed that is not too fast, resulting in a small airflow generated by the blades 205. This allows the well-atomized oil to be sprayed out while also preventing excessive heat loss from the atomizing cylinder 100.

[0053] In some embodiments of the present invention, such as Figure 2 and Figure 3As shown, the atomizing cylinder 100 is equipped with a preheating tube 400, which is located on the side of the oil outlet 200 away from the heater 300. The oil outlet 200 is rotatably connected to one end of the preheating tube 400, and the other end of the preheating tube 400 is used to connect to the oil inlet pipe. A heating wire 500 is arranged around the preheating tube 400. In cold climates, fuel is prone to condensation. When it flows into the oil outlet 200, it can easily block the fuel delivery channel 201, the first oil outlet 202, and the second oil outlet 204. Even if the fuel delivery channel 201, the first oil outlet 202, and the second oil outlet 204 are not blocked, they can still easily deflect the fuel, thereby reducing the effect of driving the oil outlet 200 to rotate. In this embodiment, a preheating pipe 400 is provided on the side of the oil outlet 200 away from the heater 300. An electric heating wire 500 is arranged around the preheating pipe 400. The electric heating wire 500 can heat the preheating pipe 400, thereby preheating the fuel flowing through the preheating pipe 400. This allows the fuel to flow smoothly through the fuel delivery channel 201, the first oil outlet 202, and the second oil outlet 204, preventing the fuel from clogging the fuel delivery channel 201, the first oil outlet 202, and the second oil outlet 204.

[0054] In some embodiments of the present invention, such as Figure 3 As shown, the atomizing cylinder 100 includes a first cylinder 102 and a second cylinder 103 that are detachably connected. Each of the first cylinder 102 and the second cylinder 103 has a limiting ring 104 extending in the circumferential direction at one end close to each other. The outer wall of the oil outlet 200 is provided with an annular flange 206 extending in the circumferential direction. The annular flange 206 is rotatably mounted between the two limiting rings 104. When the oil outlet section 200 needs to be installed, the annular flange 206 of the oil outlet section 200 can be placed on the limiting ring 104 of the first cylinder 102, and then the second cylinder 103 can be installed on the first cylinder 102. The annular flange 206 can then be located between the two limiting rings 104, thereby realizing the rotatable installation of the oil outlet section 200. When the oil outlet section 200 needs to be disassembled, the second cylinder 103 can be detached from the first cylinder 102, and then the oil outlet section 200 can be removed. The installation and disassembly of the oil outlet section 200 are very convenient, and it is also very convenient to clean, repair or replace the oil outlet section 200. In addition, the atomizing cylinder 100 can be disassembled into two parts, which also makes it very convenient to clean the atomizing cylinder 100.

[0055] It should be noted that the first cylinder 102 and the second cylinder 103 can be connected by threads, snap-fit, or fasteners, which will not be elaborated here.

[0056] In some embodiments of the present invention, such as Figure 3As shown, the inner wall of the atomizing cylinder 100 has at least one circumferentially extending first annular inclined wall 105, which is located on the side of the oil outlet 200 near the heater 300. The outer wall of the heater 300 has at least one circumferentially extending second annular inclined wall 301. From the oil outlet 200 to the oil outlet 101, the diameter of the first annular inclined wall 105 gradually decreases, and the diameter of the second annular inclined wall 301 gradually increases. In this embodiment, the first annular inclined wall 105 is formed on the inner wall of the atomizing cylinder 100, and the second annular inclined wall 301 is formed on the outer wall of the heater 300. When the fuel flows along the inner wall of the atomizing cylinder 100, and when the fuel flows along the outer wall of the heater 300, the flow rate of the fuel can be slowed down, thereby allowing the heater 300 to heat and atomize the fuel more fully.

[0057] An engine according to a second aspect embodiment of the present invention, such as Figure 1 As shown, the system includes an engine body 20 and a fuel rapid preheating atomizing device 10 as described in the first aspect embodiment above. The fuel rapid preheating atomizing device 10 is installed on the engine body 20.

[0058] The engine according to embodiments of the present invention has at least the following beneficial effects:

[0059] By employing the fuel rapid preheating atomization device 10 of the first aspect embodiment of the present invention, when the oil outlet 200 rotates, the first oil outlet 202 can spray fuel to different circumferential positions on the inner wall of the atomizing cylinder 100. The fuel flows along the inner wall of the atomizing cylinder 100. Due to the adhesion between the fuel and the inner wall of the atomizing cylinder 100, the fuel will not pass through the atomizing cylinder 100 quickly, allowing the heater 300 to heat and atomize the fuel more fully. In addition, the sprayed fuel can cover the inner wall of the atomizing cylinder 100 around the heater 300, resulting in a wider fuel heating area. This allows the heater 300 to heat and atomize the fuel more fully, thereby further improving the fuel atomization effect and efficiency, and thus improving the engine ignition efficiency.

[0060] It should be noted that since the engine can adopt all the technical solutions of the fuel rapid preheating atomization device 10 of the first aspect embodiment, it has at least all the beneficial effects brought about by the technical solutions of the first aspect embodiment. These additional beneficial effects will not be elaborated here.

[0061] It is understood that other configurations and operations of the engine according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0062] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A fuel rapid preheating and atomization device, characterized in that, include: An atomizing cylinder, one end of which has an oil outlet; The oil outlet is rotatably installed inside the atomizing cylinder. The rotation axis of the oil outlet extends along the axial direction of the atomizing cylinder. The end of the oil outlet away from the oil outlet is used to rotatably connect to the oil inlet pipe. The oil outlet is provided with an oil delivery channel. The outer side wall of the oil outlet is provided with a first oil outlet hole that communicates with the oil delivery channel. When the oil outlet rotates, the first oil outlet hole can spray fuel to different circumferential positions on the inner side wall of the atomizing cylinder. A heater is disposed inside the atomizing cylinder and located on the side of the oil outlet section near the oil outlet; The heater extends along the axial direction of the atomizing cylinder. The oil outlet part is provided with a receiving hole at one end near the heater. The heater part is located in the receiving hole. The inner side wall of the receiving hole is provided with a second oil outlet that communicates with the oil delivery channel. When the oil outlet part rotates, the second oil outlet can spray fuel to different positions in the circumferential direction of the outer side wall of the heater. The inner wall of the atomizing cylinder has at least one section of a first annular inclined wall extending circumferentially. The first annular inclined wall is located on the side of the oil outlet near the heater. The outer wall of the heater has at least one section of a second annular inclined wall extending circumferentially. From the oil outlet to the oil outlet, the diameter of the first annular inclined wall gradually decreases, and the diameter of the second annular inclined wall gradually increases.

2. The fuel rapid preheating atomization device according to claim 1, characterized in that, The projection of the first oil outlet in the axial direction of the atomizing cylinder forms an angle α with the radial direction of the oil inlet end of the oil outlet section passing through the first oil outlet, so that the oil outlet section can be driven to rotate when the fuel passes through the first oil outlet.

3. The fuel rapid preheating atomization device according to claim 2, characterized in that, The projection of the second oil outlet in the axial direction of the atomizing cylinder forms an angle β with the radial direction of the oil inlet end of the oil outlet section passing through the second oil outlet, so that when the fuel passes through the second oil outlet, it can work together with the fuel passing through the first oil outlet to push the oil outlet section to rotate.

4. The fuel rapid preheating atomization device according to claim 3, characterized in that, The included angle α satisfies: 30°≤α≤60°, and the included angle β satisfies: 30°≤β≤60°.

5. The fuel rapid preheating atomization device according to any one of claims 1 to 4, characterized in that, The oil outlet section has multiple blades on its end face near the heater, and the multiple blades are evenly arranged along the circumference of the heater.

6. The fuel rapid preheating atomization device according to any one of claims 1 to 4, characterized in that, The atomizing cylinder is equipped with a preheating tube, which is located on the side of the oil outlet that is away from the heater. The oil outlet is rotatably connected to one end of the preheating tube, and the other end of the preheating tube is used to connect to the oil inlet pipe. A heating wire is arranged around the preheating tube.

7. The fuel rapid preheating atomization device according to any one of claims 1 to 4, characterized in that, The atomizing cylinder includes a first cylinder and a second cylinder that are detachably connected. Each of the first cylinder and the second cylinder has a circumferentially extending limiting ring at one end. The outer wall of the oil outlet is provided with a circumferentially extending annular flange, which is rotatably mounted between the two limiting rings.

8. An engine, characterized in that, include: Engine body; The fuel rapid preheating atomization device according to any one of claims 1 to 7 is disposed on the engine body.

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