A fuel delivery structure for fuel-powered ATVs

Abstract

This invention discloses a fuel delivery structure for fuel-powered ATVs, belonging to the technical field of fuel supply devices. The fuel delivery structure comprises a main body and an expansion shell. The main body houses an oil delivery line and an air intake line. The oil delivery line includes a connector, one end of which is connected to one end of a thin-walled oil delivery pipe within the main body, and the other end of the thin-walled oil delivery pipe is connected to the other end of a connector within the main body. This invention effectively reduces the temperature of the fuel and combustible mixture by incorporating two cooling stages in the oil delivery line and mixing mechanism. The thin-walled oil delivery pipe and the thin-walled mixing pipe contact the heat exchange medium, suppressing fuel evaporation under high-temperature conditions and preventing fuel supply fluctuations or interruptions caused by gaseous fuel entering the pipeline. The cavity formed by the expansion shell and the main body provides circulation space for the heat exchange medium, further enhancing the cooling effect, thereby significantly improving the stability and continuity of fuel supply.

Description

Technical Field

[0001] This invention belongs to the technical field of fuel supply devices, specifically relating to a fuel delivery structure for a fuel-powered beach buggy. Background Technology

[0002] As a multi-purpose vehicle, the fuel-powered ATV demonstrates excellent adaptability and functionality in beach recreation and special terrain operations. Especially in complex terrain conditions, such as sandy and muddy areas, it can provide stable and efficient driving performance. In the field of beach recreation, its strong passability and flexible operation make it an ideal choice for outdoor leisure activities.

[0003] A Chinese utility model patent with publication number CN201982210U discloses a fuel system for a flexible fuel vehicle. By setting up a gasoline-assisted fuel supply system, it solves the problem of cold start in low-temperature conditions for flexible fuel vehicles, enhancing its practicality. In actual use, especially when the ATV operates in a high-temperature environment for a long time, the fuel in the fuel tank and delivery pipeline is prone to evaporate and vaporize due to the temperature rise, forming gaseous fuel and entering the fuel pipeline, which leads to fluctuations or even interruptions in fuel supply. This fuel supply instability will directly cause problems such as increased engine vibration and insufficient power output. In view of this, a fuel delivery structure for a fuel-powered ATV is provided. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a fuel delivery structure for fuel-powered beach buggies.

[0005] The technical solution adopted to solve the above technical problems is:

[0006] A fuel delivery structure for a fuel-powered ATV includes:

[0007] The assembly includes a main body and an expansion shell. The main body has a built-in fuel supply line and an air intake line. The fuel supply line includes a connector one. One end of the connector one located inside the main body is connected to one end of a thin-walled fuel supply pipe. The other end of the thin-walled fuel supply pipe is connected to one end of a connector four located inside the main body. The other end of the connector four is connected to one end of a connector two located outside the main body via a fuel hose three. One end of the connector two located inside the main body is connected to a fuel injector.

[0008] The oil delivery line includes an air inlet, a narrowing channel is provided directly opposite the air inlet, a pump is installed between the air inlet and the narrowing channel, the fuel injector is embedded in the middle section of the narrowing channel, a mixing thin-walled tube is installed at the end of the narrowing channel away from the air inlet, and a diameter expansion channel is connected to the end of the mixing thin-walled tube away from the narrowing channel.

[0009] A receiving cavity is formed between the extended shell and the main body, the oil conveying thin-walled pipe and the mixing thin-walled pipe are located in the receiving cavity, and a heat exchange medium is provided in the receiving cavity;

[0010] In particular, ATVs are used in high-temperature environments for extended periods, especially with air-cooled internal combustion engines operating for long periods. The initial intake and fuel temperatures are high, leading to significant fuel evaporation. If this fuel enters the fuel delivery system, it can negatively impact fuel supply stability, causing excessive engine vibration and occasional power loss. This is especially noticeable when climbing steep slopes or getting out of trouble on sandy terrain. Therefore, the fuel delivery structure has been optimized. After being drawn from the fuel tank, fuel enters the main body through a connector. It first passes through a thin-walled fuel delivery pipe and contacts the heat exchange medium inside the expansion shell, thus preventing any liquid fuel from being trapped. The gaseous fuel is cooled and reliquefied, then returned to the connector position from the external fuel hose three. The pump pressurizes the air at the narrowing channel position, and the fuel is atomized and sprayed out at the fuel nozzle position. The cooled fuel and pressurized air mix at the mixing thin-walled tube position to form a combustible mixture. It is cooled again by contacting the heat exchange medium in the expansion shell. Finally, the combustible mixture enters the cylinder of the internal combustion engine in the expansion channel to complete the fuel supply. The fuel and intake air are cooled twice at critical moments, which effectively suppresses the influence of temperature on the fuel supply during the delivery and mixing process.

[0011] Furthermore, the main body has an internal oil delivery channel one and an oil delivery channel two. The oil delivery thin-walled pipe is installed between the oil delivery channel one and the oil delivery channel two. The connector one is connected to the oil delivery thin-walled pipe through the oil delivery channel one. The end of the oil delivery channel two away from the oil delivery thin-walled pipe is connected to an oil delivery channel three. The oil delivery thin-walled pipe is connected to the connector four through the oil delivery channel three.

[0012] The above technical solution discloses the specific configuration of the oil transportation channels within the main body. Oil transportation channels one, two, and three are integrated and manufactured within the main body using an integral molding method. This manufacturing method eliminates assembly seams in the main body, resulting in high overall structural strength and good sealing. The connection point for the thin-walled oil transportation pipe is designed as a standard circular interface with a horizontal axis and uniform orientation, making pre-installation of the thin-walled oil transportation pipe more convenient. Furthermore, it is fixed using a combination of insertion and welding, i.e., the end of the thin-walled oil transportation pipe is inserted into oil transportation channels one and two, and then reinforced by welding. This structure provides good sealing stability and minimizes the risk of leakage during long-term use.

[0013] Furthermore, the main body is provided with a fuel quantity regulator between the second connector and the fuel injector, and the fuel quantity regulator is provided with a third connector in the middle, which is connected to the second connector through the fuel quantity regulator.

[0014] Through the above technical solution, in order to make full use of the heat exchange medium inside the extended shell, during fuel delivery, only a portion of the fuel passing through the thin-walled fuel delivery pipe will enter the fuel injector and be injected into the air. The remaining fuel will flow back to the fuel tank from the third connector through the fuel quantity regulator. This allows the cooled fuel to be used to cool the fuel stored in the tank, thereby lowering the overall fuel temperature and mitigating the phenomenon of high-temperature evaporation producing gaseous fuel from the source. This makes the delivery and supply of fuel more precise.

[0015] Furthermore, the fuel quantity regulator includes a housing, which is integrally formed at the corner of the main body. A cylindrical through hole is provided inside the housing, and a plunger is slidably installed in the cylindrical through hole along the axial direction. An inlet and an outlet are respectively provided at the second and third joints of the housing. A straight groove is provided on the circumferential sidewall of the plunger facing the inlet and outlet. A driving component is provided at the end of the plunger. An arc groove is provided at the end of the cylindrical through hole away from the driving component. An outlet is provided in the middle section of the arc groove, and the outlet is connected to the fuel injector.

[0016] The above technical solution discloses a specific configuration of a fuel quantity regulator. The cylindrical through-hole is a smooth inner wall hole with a horizontal axis. The plunger can slide horizontally within the cylindrical through-hole. Furthermore, the cylindrical through-hole and the outer circumference of the plunger slide in contact to achieve a sliding seal and prevent fuel leakage. Fuel entering from the second connector position will enter the third connector and the arc groove along the straight groove. Because the inlet and the arc groove are closer and blocked by the plunger, when the plunger slides away from the arc groove, the flow path between the inlet and the arc groove is enlarged, allowing more fuel to enter the second outlet. As a result, more fuel will be injected into the air through the fuel injector and enter the engine. The remaining fuel will return to the fuel tank through the third connector. By adjusting the position of the plunger, the fuel supply can be quickly adjusted instead of controlling the speed of the fuel pump, resulting in faster control response. Moreover, the fuel returning to the fuel tank can also cool the fuel tank, making the functionality more complete.

[0017] Furthermore, the driving component includes a pull rope, which is assembled and connected to the plunger. A swivel cap is installed at the end of the cylindrical through hole away from the arc groove. The pull rope is installed through the middle of the swivel cap. A compression spring is provided between the swivel cap and the plunger. A covering sleeve is provided on the outside of the pull rope.

[0018] The above technical solution discloses a specific configuration of a drive component, which drives the plunger to slide horizontally. When the plunger needs to move away from the arc groove, the plunger is driven by pulling a rope. The power source for pulling the rope can be a winding motor or an electric cylinder. Because the rope itself adopts a flexible steel cable structure, it has stronger adaptability to different power sources. When the rope is pulled, the compression spring is compressed and stores energy synchronously. When the power source is reset, the elasticity of the compression spring will also cause the plunger to be passively reset. During the process, the compression spring is always in a compressed state, which will keep the rope taut and avoid unnecessary play in the plunger, thus achieving precise control of the oil supply.

[0019] Furthermore, an oil-passing hose is installed at one end of the connector 1 located outside the main body. An oil tank is installed at the top of the oil-passing hose 1. An oil pump is built into the oil tank. The oil outlet of the oil pump is connected to the end of the oil-passing hose 1 located inside the oil tank. An oil-passing hose 2 is installed at one end of the connector 3 located outside the main body. The oil-passing hose 2 is connected to the oil tank.

[0020] Through the above technical solution, the arrangement of the fuel tank is designed to meet the needs of fuel supply and return. During fuel supply, the fuel pump delivers fuel through the fuel hose to the connector to complete the fuel supply process. During fuel return, the fuel flowing out from the connector will rise through the fuel hose and eventually return to the fuel tank. The power for the fuel to flow out, flow back, and be sprayed through the fuel nozzle all comes from the fuel pump, ensuring that the flow direction of the fuel is controllable and stable.

[0021] Furthermore, the pump includes an inclined blade drum, with end plates installed at both the top and bottom ends of the inclined blade drum. The inner wall of the main body slides in contact with the end plates and the edge side wall of the inclined blade drum. A motor is installed at the top of the inclined blade drum. A first blocking plate is installed on the upper half of the air inlet near the inclined blade drum, and a second blocking plate is installed on the lower half of the narrowing channel near the inclined blade drum.

[0022] Through the above technical solution, the inclined blade drum is cylindrical with a vertical axis and blades that form an acute angle with the axis. This structure can push the airflow upward when the inclined blade drum rotates. Combined with the blocking plate 1 above the air inlet and the blocking plate 2 below the narrowing channel, the airflow can only flow from the lower part of the air inlet to the upper part of the narrowing channel, thus realizing the directional delivery of airflow. At the same time, the vertically arranged inclined blade drum allows the motor to be placed in an open area above the main body, without interfering with the horizontally arranged air inlet and narrowing channel. It is also located outside the main body, which is convenient for later maintenance.

[0023] Furthermore, the main body sidewall is equipped with symmetrically arranged media input heads and media output heads. The media input head has a lower bend pipe installed at one end inside the receiving cavity, and the media output head has an upper bend pipe installed at one end inside the receiving cavity.

[0024] To ensure the heat exchange medium remains effective over extended periods, the above technical solution integrates a medium inlet head and a medium outlet head into the main body. These are manufactured using a single-piece molding process to prevent leakage. Furthermore, a lower bend and an upper bend are incorporated, allowing the heat exchange medium to enter through the lower bend and exit through the upper bend, preventing residual air within the containment cavity. This ensures that after the medium inlet head and outlet head are connected to an external water pump and cooling pipes, the entire heat exchange medium within the containment cavity can participate in the water pump's circulation, allowing for continuous cooling of the heat exchange medium and thus ensuring the cooling of the continuously entering fuel oil and air.

[0025] Furthermore, a connecting pipe is provided on the outside of the expansion shell, the top surface of the connecting pipe is equal to the top height of the expansion shell, a filter box is built into the expansion shell, and a mounting base is hinged to the top of the filter box, the mounting base is fixedly connected to the main body.

[0026] To prevent blockage of the heat exchange medium circulation path through the above technical solution, a filter box is arranged inside the expansion shell to adsorb and filter the heat exchange medium in the containment cavity, ensuring that solid impurities are captured in the filter box and maintaining the cleanliness of the circulating heat exchange medium. Moreover, since the expansion shell is made of aluminum and does not have light transmission, a separate connecting pipe with a transparent lens is designed to observe the liquid level and cleanliness of the heat exchange medium, providing an indication for the replacement of the heat exchange medium. If a gas section appears at the top of the connecting pipe, it means that air has been mixed into the heat exchange medium and has entered the connecting pipe through the connection between the expansion shell and the connecting pipe during the flow process. This allows for timely detection and venting, preventing excessive air from being trapped in the heat exchange medium and affecting the contact heat exchange between the heat exchange medium and the oil delivery thin-walled pipe and the mixing thin-walled pipe.

[0027] Furthermore, the main body is equipped with a bellows at the air inlet, and an air filter is installed at the end of the bellows, with a filter element inside the air filter.

[0028] Through the above technical solution, in order to ensure the cleanliness of the intake air, a flexible bellows is installed at the air intake and connected to an air filter for filtration of the intake air. At the same time, the flexible structure of the bellows can suppress the propagation of vibration, prevent the vibration of the air filter from affecting the installation stability of the main body, and ensure that the joints of the main body, the relay pipe and the internal combustion engine are tight and firm.

[0029] The beneficial effects of this invention are as follows:

[0030] (1) By setting two cooling stages in the oil delivery line and mixing mechanism, the present invention effectively reduces the temperature of fuel oil and combustible mixture by using the oil delivery thin-walled pipe and the mixing thin-walled pipe to contact the heat exchange medium, suppresses the evaporation of fuel oil under high temperature environment, avoids the oil supply fluctuation or interruption caused by gaseous fuel oil entering the pipeline, and the cavity formed by the extended shell and the main body provides circulation space for the heat exchange medium, further enhancing the cooling effect, thereby significantly improving the stability and continuity of oil supply.

[0031] (2) The present invention pressurizes the intake air by pumping and uses high-speed airflow to impact the fuel sprayed from the fuel nozzle in the narrow-diameter channel, thereby achieving efficient atomization and uniform mixing of fuel. The fuel quantity regulator precisely controls the amount of fuel entering the engine by adjusting the position of the plunger, thereby improving the system's response speed and fuel supply accuracy. This not only improves combustion efficiency but also effectively suppresses engine vibration caused by uneven fuel supply, thereby enhancing the stability and reliability of power output.

[0032] (3) The main body of the present invention adopts an integral molding process. The oil thin-walled pipe and the oil channel adopt a plug-in and welding connection method, which improves the sealing performance and structural strength of the system. The filter box and connecting pipe in the air intake filter component and the heat exchange medium circulation component ensure the cleanliness of the intake air and the circulation efficiency of the coolant. The fuel quantity regulator guides the remaining fuel back to the fuel tank. The low temperature return fuel is used to cool the fuel tank, which further alleviates the problem of high temperature volatilization of fuel and enhances the adaptability and reliability of the system in harsh environments such as high temperature and complex terrain. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the assembly and use of the present invention;

[0034] Figure 2 This is a schematic diagram of the assembly of the invention with the fuel tank and air filter. Figure 1 ;

[0035] Figure 3 This is a schematic diagram of the assembly of the invention with the fuel tank and air filter. Figure 2 ;

[0036] Figure 4 This is a schematic diagram of the structure of the oil-removing hose of the present invention. Figure 1 ;

[0037] Figure 5 This is a schematic diagram of the structure of the oil-removing hose of the present invention. Figure 2 ;

[0038] Figure 6 This is a cross-sectional schematic diagram of the main body of the present invention and its connected components;

[0039] Figure 7This is a structural schematic diagram of the main body of the present invention and its connected components;

[0040] Figure 8 This is a schematic diagram showing the assembly position between the main body and the filter box of the present invention;

[0041] Figure 9 This is a schematic diagram showing the assembly position between the main body of the invention and the relay tube;

[0042] Figure 10 This is a schematic diagram of the oil quantity regulator of the present invention.

[0043] Attached reference numerals: 1. Assembly; 2. Fuel tank; 21. Fuel hose one; 22. Fuel hose two; 3. Air filter; 31. Corrugated pipe; 4. Engine; 5. Main body; 51. Connector one; 511. Fuel delivery channel one; 512. Fuel delivery thin-walled pipe; 513. Fuel delivery channel two; 52. Connector two; 521. Fuel injector; 53. Connector three; 54. Fuel hose three; 55. Connector four; 551. Fuel delivery channel three; 56. Medium inlet head; 561. Medium outlet head; 562. Lower bend pipe; 563. Upper bend pipe; 57. Air inlet; 5 8. Reduction channel; 581. Mixing thin-walled tube; 59. Expansion channel; 591. Air chamber; 6. Expansion shell; 61. Connecting pipe; 62. Filter box; 63. Mounting base; 7. Relay pipe; 8. Oil quantity regulator; 81. Outer shell; 811. Inlet; 812. Outlet 1; 82. Plunger; 821. Straight groove; 83. Pull rope; 84. Compression spring; 85. Rotary cap; 86. Cylindrical through hole; 88. Arc groove; 89. Outlet 2; 9. Pump; 91. Motor; 92. Inclined blade drum; 93. End plate; 94. Blocking plate 1; 95. Blocking plate 2. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0045] like Figure 1 - Figure 10 As shown, this embodiment provides a fuel delivery structure for a fuel-powered ATV. To optimize the ATV with a fuel-powered engine 4, the fuel delivery structure is specifically designed to reduce the adverse effects of fuel evaporation on the stability of fuel supply. The specific structure includes:

[0046] Assembly 1 includes a main body 5 and an extension shell 6. The main body 5 has a built-in oil supply line and an air intake line. The oil supply line includes a connector 1 51. One end of connector 1 51 located inside the main body 5 is connected to one end of the oil supply thin-walled pipe 512. The other end of the oil supply thin-walled pipe 512 is connected to one end of connector 4 55 located inside the main body 5. The other end of connector 4 55 is connected to one end of connector 2 52 located outside the main body 5 through a three-way oil hose 3 54. One end of connector 2 52 located inside the main body 5 is connected to a fuel injector 521.

[0047] The oil delivery line includes an air inlet 57, a narrowing channel 58 is provided directly opposite the air inlet 57, a pump 9 is installed between the air inlet 57 and the narrowing channel 58, a fuel injector 521 is embedded in the middle section of the narrowing channel 58, a mixing thin-walled pipe 581 is installed at the end of the narrowing channel 58 away from the air inlet 57, and a diameter expansion channel 59 is connected to the end of the mixing thin-walled pipe 581 away from the narrowing channel 58.

[0048] An accommodating cavity is formed between the extended shell 6 and the main body 5. The oil conveying thin-walled pipe 512 and the mixing thin-walled pipe 581 are located in the accommodating cavity, and a heat exchange medium is provided in the accommodating cavity.

[0049] The working principle of this embodiment is as follows:

[0050] ATVs are used in high-temperature environments for extended periods, especially with air-cooled internal combustion engines operating for long periods. The initial intake and fuel temperatures are high, leading to significant fuel evaporation. If this gaseous fuel enters the fuel delivery pipeline, it affects the fuel injection quantity, negatively impacting fuel supply stability. This results in increased engine vibration and occasional power loss, which is more pronounced when climbing hills or getting out of trouble on sandy terrain at high throttle. Therefore, the fuel delivery structure is optimized. Fuel is drawn from the fuel tank 2 and enters the main body 5 through connector 51. It first passes through the thin-walled fuel delivery pipe 512 and contacts the heat exchange medium inside the expansion shell 6, cooling and reliquefying any gaseous fuel that may be trapped in the liquid fuel. Then, the air returns from the external oil hose 3 54 to the connector 2 52. The pump 9 pressurizes the air at the narrowing channel 58, and the fuel is atomized and sprayed out at the fuel nozzle 521. The cooled fuel and the pressurized air mix at the mixing thin-walled tube 581 to form a combustible mixture. It is cooled again by contacting the heat exchange medium in the expansion shell 6. Finally, the combustible mixture enters the air chamber 591 through the expansion channel 59. It is temporarily stored in the large air chamber 591 and then sucked into the cylinder of the internal combustion engine to complete the fuel supply. The fuel and intake air are cooled twice at critical moments, which effectively suppresses the influence of temperature on the fuel supply during the delivery and mixing process.

[0051] In a further embodiment, the specific configuration of the oil delivery channel within the main body 5 is disclosed, referring to... Figure 6 , Figure 7 and Figure 9The main body 5 contains an oil delivery channel 1 511 and an oil delivery channel 2 513. An oil delivery thin-walled pipe 512 is installed between oil delivery channels 1 511 and 2 513. A connector 1 51 connects to the oil delivery thin-walled pipe 512 via oil delivery channel 1 511. An oil delivery channel 3 551 is connected to the end of oil delivery channel 2 513 away from the oil delivery thin-walled pipe 512. The oil delivery thin-walled pipe 512 connects to a connector 4 55 via oil delivery channel 3 551. Oil delivery channels 1 511, 2 513, and 3 551 are integrally manufactured within the main body 5 using a one-piece molding method. This manufacturing method eliminates assembly seams in the main body 5, resulting in high overall structural strength and good sealing. The position of the thin-walled oil pipe 512 is designed as a standard circular interface with a horizontal axis and uniform orientation, which makes the pre-installation of the thin-walled oil pipe 512 more convenient. In addition, it is fixed by plug-in and welding. That is, the end of the thin-walled oil pipe 512 is inserted into the oil channel 1 511 and the oil channel 2 513, and then welded for reinforcement. This structure has good sealing stability and low risk of leakage in long-term use. The middle section of the oil channel 3 551 adopts a quarter-ring shape, which can avoid the position of the reduced diameter channel 58 and the expanded diameter channel 59. It extends smoothly to the joint 4 55 position on the front side of the pump 9, parallel to the reduced diameter channel 58 and staggered front and back, ensuring that the internal structure of the main body 5 is compact and the position is reasonable.

[0052] In a further embodiment, to fully utilize the heat exchange medium within the extended shell 6, refer to Figure 7 The main body 5 is equipped with a fuel quantity regulator 8 between the second connector 52 and the fuel injector 521. The fuel quantity regulator 8 is equipped with a third connector 53 in the middle. The third connector 53 is connected to the second connector 52 through the fuel quantity regulator 8. When fuel is delivered, only a portion of the fuel passing through the thin-walled fuel delivery pipe 512 will enter the fuel injector 521 and be injected into the air. The remaining fuel will flow back to the fuel tank 2 through the fuel quantity regulator 8 from the third connector 53. This allows the cooled fuel to be used to cool the fuel stored in the fuel tank 2, thereby lowering the overall fuel temperature and mitigating the phenomenon of high-temperature evaporation and gaseous fuel production from the source. This makes the delivery and supply of fuel more precise.

[0053] In a further embodiment, a specific configuration of the fuel quantity regulator 8 is disclosed, referring to... Figure 10The fuel level regulator 8 includes a housing 81, which is integrally formed at the corner of the main body 5. A cylindrical through-hole 86 is formed inside the housing 81. The cylindrical through-hole 86 is a smooth inner wall hole with a horizontal axis. The plunger 82 can slide horizontally within the cylindrical through-hole 86. The cylindrical through-hole 86 slides in contact with the outer circumferential wall of the plunger 82 to achieve a sliding seal and prevent fuel leakage. The housing 81 has an inlet 811 and an outlet 812 corresponding to connectors 2 and 3, respectively. A straight groove 821 is formed on the circumferential side wall of the plunger 82 opposite to the inlet 811 and outlet 812. An arc groove 88 is formed at the end of the cylindrical through-hole 86 away from the drive component. An outlet 89 is formed in the middle of the arc groove 88, and the outlet 89 communicates with the fuel injector 521. From connector 2... Fuel entering at position 52 will flow along the straight groove 821 into connector 53 and arc groove 88. Because the inlet 811 and arc groove 88 are closer together and blocked by the plunger 82, when the plunger 82 slides away from the arc groove 88, the flow path between the inlet 811 and arc groove 88 is enlarged, allowing more fuel to enter outlet 89. As a result, more fuel will be injected into the air through the fuel injector 521 and enter the engine 4. The remaining fuel will return to the fuel tank 2 through connector 53. The plunger 82 has a drive component at its end, which allows for quick adjustment of the fuel supply by adjusting the position of the plunger 82, rather than controlling the speed of the fuel pump. This results in faster control response. Furthermore, the fuel returning to the fuel tank 2 can also cool the fuel tank 2, making its functionality more complete.

[0054] In a further embodiment, a specific configuration of a drive component is disclosed, referring to... Figure 10 The driving component includes a pull rope 83, which is assembled and connected to the plunger 82. A cap 85 is installed at the end of the cylindrical through hole 86 away from the arc groove 88. The pull rope 83 is installed through the middle of the cap 85. A compression spring 84 is provided between the cap 85 and the plunger 82. A cover sleeve is fitted on the outside of the pull rope 83. The cover sleeve is a rigid structure, and its inner diameter is larger than the outer diameter of the pull rope 83, providing sufficient sliding space for the pull rope 83 and avoiding external compression or other interference that could cause the pull rope 83 to move poorly. This allows the plunger 82 to slide horizontally, and when the plunger 82 needs to move away from the arc groove 88... Pulling the rope 83 drives the plunger 82. The power source for pulling the rope 83 can be a winding motor or an electric cylinder. Because the rope 83 itself adopts a flexible steel cable structure, it is more adaptable to different power sources. When pulling the rope 83, the compression spring 84 is compressed and stores energy synchronously. When the power source is reset, the elasticity of the compression spring 84 will also cause the plunger 82 to be passively reset. During the process, the compression spring 84 is always in a compressed state, which will keep the rope 83 taut and prevent unnecessary play in the plunger 82, thus achieving precise oil supply control.

[0055] In a further embodiment, refer to Figure 2 and Figure 3One end of connector 51 located outside the main body 5 is equipped with an oil hose 21. An oil tank 2 is installed at the top of the oil hose 21, and an oil pump is built into the oil tank 2. The oil outlet of the oil pump is connected to the end of the oil hose 21 located inside the oil tank 2. One end of connector 53 located outside the main body 5 is equipped with an oil hose 22. The oil hose 22 is connected to the oil tank 2. The arrangement of the oil tank 2 is to meet the needs of oil supply and return. When supplying oil, the oil pump delivers fuel to connector 51 through the oil hose 21 to complete the oil supply process. When returning oil, the fuel flowing out of connector 53 will rise through the oil hose 22 and eventually return to the oil tank 2. The power for the fuel to flow out, flow back, and be sprayed through the fuel nozzle 521 all comes from the oil pump, ensuring that the flow direction of the oil is controllable and stable.

[0056] In a further embodiment, a specific configuration of the pump 9 is disclosed, referring to... Figure 4 and Figure 6 The pump 9 includes an inclined blade drum 92, with end plates 93 installed at both the top and bottom ends of the inclined blade drum 92. The inclined blade drum 92 is cylindrical with a vertical axis and blades forming an acute angle with the axis. This structure allows the airflow below to be pushed upward when the inclined blade drum 92 rotates. The inner wall of the main body 5 slides in contact with the end plates 93 and the edge sidewalls of the inclined blade drum 92. A first blocking plate 94 is installed on the upper half of the air inlet 57 near the inclined blade drum 92, and a second blocking plate 95 is installed on the lower half of the narrowing channel 58 near the inclined blade drum 92, in conjunction with the end plates. The guide plates 93 and the inner wall of the main body 5, together with the blocking plate 94 above the air inlet 57 and the blocking plate 95 below the narrowing channel 58, block the oblique blade drum 92, so that the airflow can only flow from the lower part of the air inlet 57 to the upper part of the narrowing channel 58, thus realizing the directional delivery of airflow. At the same time, the motor 91 is installed on the top of the oblique blade drum 92. The vertically arranged oblique blade drum 92 can place the motor 91 in an open space above the main body 5, so that it will not interfere with the horizontally arranged air inlet 57 and narrowing channel 58. It is also located outside the main body 5, which is convenient for later maintenance.

[0057] In a further embodiment, to ensure that the heat exchange medium does not fail during long-term operation, refer to Figure 4 and Figure 5 The main body 5 has symmetrically arranged media input heads 56 and media output heads 561 mounted on its side walls. The media input heads 56 and media output heads 561 are integrated into the main body 5, and are manufactured using a one-piece molding method to ensure no leakage. Furthermore, referring to… Figure 7The medium inlet head 56 is equipped with a lower bend pipe 562 at one end inside the receiving cavity, and the medium outlet head 561 is equipped with an upper bend pipe 563 at one end inside the receiving cavity. The design of the lower bend pipe 562 and the upper bend pipe 563 ensures that the heat exchange medium enters through the lower bend pipe 562 and exits through the upper bend pipe 563, thus avoiding residual air in the receiving cavity. This ensures that after the medium inlet head 56 and the medium outlet head 561 are connected to the external water pump and heat dissipation pipe through the pipe fittings, the heat exchange medium in the receiving cavity can participate in the circulation of the water pump, so that the heat exchange medium in the receiving cavity can be circulated and cooled, thereby ensuring the cooling of the continuously entering fuel and air.

[0058] In a further embodiment, to avoid blockage of the heat exchange medium circulation path, refer to Figure 4 and Figure 8 An extension shell 6 is connected to a connecting pipe 61 on its outer side. The top surface of the connecting pipe 61 is equal to the top height of the extension shell 6. The extension shell 6 contains a filter box 62. A mounting base 63 is hinged to the top of the filter box 62 and fixedly connected to the main body 5. The filter box 62 is arranged inside the extension shell 6 to adsorb and filter the heat exchange medium in the containment cavity, ensuring that solid impurities are captured in the filter box 62 and ensuring the cleanliness of the circulating heat exchange medium. Moreover, since the extension shell 6 is made of aluminum and does not have light transmission, a separate connecting pipe 61 with a transparent lens is designed to observe the liquid level and cleanliness of the heat exchange medium, providing an indication for the replacement of the heat exchange medium. If a gas section appears at the top of the connecting pipe 61, it means that air has been mixed into the heat exchange medium and enters the connecting pipe 61 through the connection between the extension shell 6 and the connecting pipe 61 during the flow process. This can be detected in time and an venting operation can be performed to avoid excessive air being trapped in the heat exchange medium, which would affect the contact heat exchange between the heat exchange medium and the oil conveying thin-walled pipe 512 and the mixing thin-walled pipe 581.

[0059] In a further embodiment, to ensure the cleanliness of the intake air, refer to Figure 1 and Figure 3 The main body 5 is equipped with a bellows 31 at the air inlet 57. An air filter 3 is installed at the end of the bellows 31. The air filter 3 has a filter element inside. The flexible bellows 31 is installed at the air inlet 57 and connected to the air filter 3 to filter the intake air. At the same time, the flexible structure of the bellows 31 can suppress the propagation of vibration and prevent the vibration of the air filter 3 from affecting the installation stability of the main body 5, ensuring that the joint between the main body 5, the relay pipe 7 and the internal combustion engine is tight and firm.

[0060] The above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention.

Claims

1. A fuel delivery structure for a fuel-powered ATV, characterized in that, include: The assembly (1) includes a main body (5) and an extension shell (6). The main body (5) has an internal oil supply line and an air intake line. The oil supply line includes a connector one (51). One end of the connector one (51) located inside the main body (5) is connected to one end of the oil supply thin-walled pipe (512). The other end of the oil supply thin-walled pipe (512) is connected to one end of the connector four (55) located inside the main body (5). The other end of the connector four (55) is connected to one end of the connector two (52) located outside the main body (5) through an oil hose three (54). One end of the connector two (52) located inside the main body (5) is connected to a fuel injector (521). The oil delivery line includes an air inlet (57), which is directly opposite a narrowing channel (58). A pump (9) is installed between the air inlet (57) and the narrowing channel (58). A fuel injector (521) is embedded in the middle section of the narrowing channel (58). A mixing thin-walled tube (581) is installed at the end of the narrowing channel (58) away from the air inlet (57). The end of the mixing thin-walled tube (581) away from the narrowing channel (58) is connected to an expanding channel (59). An accommodating cavity is formed between the extended shell (6) and the main body (5), and the oil conveying thin-walled pipe (512) and the mixing thin-walled pipe (581) are located in the accommodating cavity, which is provided with a heat exchange medium.

2. The fuel delivery structure for fuel-powered ATVs according to claim 1, characterized in that, The main body (5) has an internal oil delivery channel one (511) and an oil delivery channel two (513). The oil delivery thin-walled pipe (512) is installed between the oil delivery channel one (511) and the oil delivery channel two (513). The connector one (51) is connected to the oil delivery thin-walled pipe (512) through the oil delivery channel one (511). The end of the oil delivery channel two (513) away from the oil delivery thin-walled pipe (512) is connected to the oil delivery channel three (551). The oil delivery thin-walled pipe (512) is connected to the connector four (55) through the oil delivery channel three (551).

3. The fuel delivery structure for fuel-powered ATVs according to claim 2, characterized in that, The main body (5) is provided with a fuel quantity regulator (8) between the second connector (52) and the fuel nozzle (521). The fuel quantity regulator (8) is provided with a third connector (53) in the middle. The third connector (53) is connected to the second connector (52) through the fuel quantity regulator (8).

4. The fuel delivery structure for fuel-powered ATVs according to claim 3, characterized in that, The fuel quantity regulator (8) includes a housing (81), which is integrally formed at the corner of the main body (5). A cylindrical through hole (86) is provided inside the housing (81). A plunger (82) is slidably installed in the cylindrical through hole (86) along the axial direction. An inlet (811) and an outlet (812) are provided at the corresponding joints 2 (52) and 3 (53) of the housing (81). A straight groove (821) is provided on the circumferential sidewall of the plunger (82) facing the inlet (811) and the outlet (812). A driving member is provided at the end of the plunger (82). An arc groove (88) is provided at the end of the cylindrical through hole (86) away from the driving member. An outlet (89) is provided in the middle section of the arc groove (88). The outlet (89) is connected to the fuel injector (521).

5. The fuel delivery structure for fuel-powered ATVs according to claim 4, characterized in that, The drive component includes a pull rope (83), which is assembled and connected to a plunger (82). A swivel cap (85) is installed at the end of the cylindrical through hole (86) away from the arc groove (88). The pull rope (83) is installed through the middle of the swivel cap (85). A compression spring (84) is provided between the swivel cap (85) and the plunger (82). A covering sleeve is provided on the outside of the pull rope (83).

6. The fuel delivery structure for fuel-powered ATVs according to claim 4, characterized in that, The first connector (51) is equipped with an oil hose (21) at one end outside the main body (5). An oil tank (2) is installed at the top of the oil hose (21). An oil pump is built into the oil tank (2). The oil outlet of the oil pump is connected to the end of the oil hose (21) inside the oil tank (2). The second connector (22) is equipped with an oil hose at one end outside the main body (5). The second connector (22) is connected to the oil tank (2).

7. The fuel delivery structure for fuel-powered ATVs according to claim 1, characterized in that, The pump (9) includes an inclined blade drum (92), with end plates (93) installed at both the top and bottom ends of the inclined blade drum (92). The inner wall of the main body (5) slides in contact with the end plates (93) and the edge side wall of the inclined blade drum (92). A motor (91) is installed on the top of the inclined blade drum (92). A first blocking plate (94) is installed on the upper half of the air inlet (57) near the inclined blade drum (92), and a second blocking plate (95) is installed on the lower half of the narrowing channel (58) near the inclined blade drum (92).

8. The fuel delivery structure for fuel-powered ATVs according to claim 1, characterized in that, The main body (5) has a symmetrically arranged medium input head (56) and medium output head (561) installed on its side wall. The medium input head (56) has a lower bend (562) installed at one end in the receiving cavity, and the medium output head (561) has an upper bend (563) installed at one end in the receiving cavity.

9. The fuel delivery structure for fuel-powered ATVs according to claim 8, characterized in that, The outer side of the expansion shell (6) is connected to a connecting pipe (61), the top surface of the connecting pipe (61) is equal to the top height of the expansion shell (6), the expansion shell (6) contains a filter box (62), the top of the filter box (62) is hinged to a mounting base (63), and the mounting base (63) is fixedly connected to the main body (5).

10. The fuel delivery structure for fuel-powered ATVs according to claim 1, characterized in that, The main body (5) is equipped with a bellows (31) at the air inlet (57), and an air filter (3) is installed at the end of the bellows (31), and the air filter (3) has a filter element inside.

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