An oil tank, engine oil supply system and vehicle

Abstract

The application relates to an oil tank, an engine oil supply system and a vehicle, which comprise: an oil tank body, a pumping device is installed on the oil tank body, a first oil pipe is communicated with a first pumping end of the pumping device, the first oil pipe is inserted into a front end of the oil tank body, a second oil pipe is communicated with a second pumping end of the pumping device, the second oil pipe is inserted into a rear end of the oil tank body, and an output end of the pumping device is used for being communicated with an oil supply end of an engine body; an oil level sensor is installed on the oil tank body and is used for monitoring a front end liquid level of the oil tank body; and a controller is signal-connected with the pumping device and the oil level sensor. When descending, the pumping device can always pump the oil concentrated in the front end area of the oil tank through the first oil pipe, when ascending, the pumping device starts the first oil pipe and the second oil pipe to supply oil at the same time, and sufficient oil amount supply of the vehicle when ascending and descending is guaranteed.

Description

Technical Field

[0001] This application relates to the field of fuel tanks, specifically to a fuel tank, an engine fuel supply system, and a vehicle. Background Technology

[0002] The term "automobile fuel tank" is the full name for a car's fuel tank. Currently, with the development of the automobile industry and the revitalization of the domestic automobile industry, the demand for automobile fuel tanks from major automobile manufacturers is showing a significant upward trend.

[0003] Automotive fuel tanks are categorized by material: iron fuel tanks and aluminum alloy fuel tanks. With the development and application of various new materials, rust prevention has become the biggest quality issue for iron fuel tanks, especially given today's emphasis on environmental protection. In the heavy-duty truck sector, the quality of fuel in my country is a major factor affecting the adoption of new models, making the quality of the fuel tank, which carries the fuel, a key focus. Aluminum alloy fuel tanks not only meet strength requirements but also offer significant advantages in corrosion resistance compared to iron and other new materials. This has made them the preferred choice for large buses and heavy-duty trucks, which have high fuel consumption and stringent fuel quality requirements. Automotive fuel tanks are also categorized by function: ordinary fuel tanks and heated fuel tanks.

[0004] In related technologies, the fuel tank's extraction end is located in its central area. If the vehicle is going uphill or downhill and the fuel level in the tank is low, the vehicle may experience insufficient fuel supply, leading to a risk of fuel shortage when going uphill or downhill. Summary of the Invention

[0005] This application provides a fuel tank, an engine fuel supply system, and a vehicle. When going downhill, the extraction device can continuously extract fuel concentrated in the front area of ​​the fuel tank through the first oil pipe. When going uphill, the extraction device activates the first and second oil pipes to supply fuel simultaneously, ensuring that the vehicle has sufficient fuel supply when going uphill or downhill.

[0006] In a first aspect, embodiments of this application provide an oil tank, which includes:

[0007] The fuel tank body is equipped with an extraction device. The first extraction end of the extraction device is connected to a first oil pipe, which is inserted into the front end of the fuel tank body. The second extraction end of the extraction device is connected to a second oil pipe, which is inserted into the rear end of the fuel tank body. The output end of the extraction device is used to connect to the fuel supply end of the engine body.

[0008] An oil level sensor is installed on the oil tank body to monitor the liquid level at the front end of the oil tank body;

[0009] The controller is connected to the extraction device and the oil level sensor. The controller is used to control the extraction device to start the first oil pipe to supply oil when the oil level sensor detects that the liquid level at the front end of the oil tank body is greater than or equal to a set threshold, and to control the extraction device to start the first oil pipe and the second oil pipe to supply oil when the oil level sensor detects that the liquid level at the front end of the oil tank body is lower than the set threshold.

[0010] In conjunction with the first aspect, in one embodiment, the extraction device includes:

[0011] An oil pump, one end of which is connected to the first oil pipe, and the other end of which is connected to the oil supply end of the engine body;

[0012] A first control valve is connected between the first oil pipe and the second oil pipe;

[0013] When the oil level sensor detects that the liquid level at the front end of the oil tank body is lower than a set threshold, the controller controls the first control valve to connect to the first oil pipe and the second oil pipe.

[0014] In conjunction with the first aspect, in one embodiment, the fuel tank further includes a first partition plate, which is fixed to the fuel tank body. Along the length of the vehicle body, the first partition plate divides the fuel tank body into a fuel supply chamber and a fuel storage chamber. Along the height of the vehicle body, the upper half of the first partition plate is provided with a plurality of first oil passage holes.

[0015] The first oil pipe is located inside the oil supply chamber, and the second oil pipe is located inside the oil storage chamber;

[0016] The extraction device further includes a third oil pipe, one end of which is inserted into the oil supply chamber, and the third oil pipe is connected to the first oil pipe by a second control valve.

[0017] When the oil level sensor detects that the liquid level at the front end of the oil tank body is lower than a set threshold, the controller controls the first control valve to connect to the first oil pipe and the second oil pipe, and the second control valve to connect to the first oil pipe and the third oil pipe.

[0018] In conjunction with the first aspect, in one embodiment, the inner diameter of the third oil pipe is smaller than the inner diameter of the first oil pipe.

[0019] In conjunction with the first aspect, in one embodiment, the fuel tank further includes a second partition plate, which is fixed inside the fuel tank body and located within the fuel storage cavity. Along the vehicle height direction, the second partition plate has a plurality of second oil passage holes.

[0020] In conjunction with the first aspect, in one embodiment, the second oil pipe includes:

[0021] A first tube and a second tube, one end of the first tube being connected to the extraction device, and one end of the second tube being connected to the rear end of the fuel tank body.

[0022] A filtration device, wherein the filtration device is connected to the other end of the first tube and the other end of the second tube.

[0023] In conjunction with the first aspect, in one embodiment, one end of the first tube penetrates the oil tank body and is connected to the extraction device.

[0024] In conjunction with the first aspect, in one embodiment, the top and bottom surfaces of the fuel tank body are provided with flushing ports.

[0025] Secondly, embodiments of this application provide an engine fuel supply system, which includes:

[0026] The fuel tank body is equipped with an extraction device. The first extraction end of the extraction device is connected to a first oil pipe, which is inserted into the front end of the fuel tank body. The second extraction end of the extraction device is connected to a second oil pipe, which is inserted into the rear end of the fuel tank body.

[0027] An oil level sensor is used to monitor the liquid level at the front end of the oil tank body;

[0028] The controller is connected to the extraction device and the oil level sensor. When the oil level sensor detects that the liquid level at the front end of the oil tank body is greater than or equal to a set threshold, the controller controls the extraction device to start the first oil pipe to supply oil. When the oil level sensor detects that the liquid level at the front end of the oil tank body is lower than the set threshold, the controller controls the extraction device to start the first oil pipe and the second oil pipe to supply oil.

[0029] The engine body has a fourth oil pipe connected to its oil supply end, which is connected to the first output end of the extraction device, and a fifth oil pipe connected to its oil return end, which is inserted into the front end of the fuel tank body.

[0030] Thirdly, embodiments of this application provide a vehicle that includes the engine fuel supply system as described above.

[0031] The beneficial effects of the technical solutions provided in this application include:

[0032] When the vehicle is going downhill, the fuel in the tank flows to the front of the tank. A first fuel line inserted into the front ensures the extraction device can continuously draw fuel from this concentrated area. When the vehicle is going uphill, the fuel flows to the rear. A fuel level sensor detects when the fuel level at the front of the tank falls below a set threshold. The controller then activates the extraction device to simultaneously supply fuel through both the first and second fuel lines, ensuring a fuel supply for the vehicle going uphill. This solves the risk of fuel shortage during uphill and downhill driving in related technologies. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 A schematic diagram of the engine fuel supply system;

[0035] Figure 2 This is a schematic diagram of the extraction device.

[0036] In the diagram: 1. Fuel tank body; 101. Fuel supply chamber; 102. Fuel storage chamber; 2. Extraction device; 201. Fuel pump; 202. First control valve; 203. Third oil pipe; 204. Second control valve; 3. First oil pipe; 4. Second oil pipe; 401. First pipe body; 402. Second pipe body; 403. Filter device; 5. Oil level sensor; 6. First baffle; 601. First oil passage hole; 7. Second baffle; 701. Second oil passage hole; 8. Engine body; 9. Fourth oil pipe; 10. Fifth oil pipe. Detailed Implementation

[0037] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0038] This application provides a fuel tank, an engine fuel supply system, and a vehicle. When going downhill, the extraction device can continuously extract fuel concentrated in the front area of ​​the fuel tank through the first oil pipe. When going uphill, the extraction device activates the first and second oil pipes to supply fuel simultaneously, ensuring that the vehicle has sufficient fuel supply when going uphill or downhill.

[0039] Firstly, such as Figure 1 As shown in the figure, this application embodiment provides a fuel tank, which may include: a fuel tank body 1, the fuel tank body 1 is equipped with an extraction device 2, the first extraction end of the extraction device 2 is connected to a first oil pipe 3, the first oil pipe 3 is inserted into the front end of the fuel tank body 1, the second extraction end of the extraction device 2 is connected to a second oil pipe 4, the second oil pipe 4 is inserted into the rear end of the fuel tank body 1, and the output end of the extraction device 2 is used to connect to the fuel supply end of the engine body 8; a fuel level sensor 5, which is installed on the fuel tank body 1, is used to monitor the liquid level at the front end of the fuel tank body 1; a controller, the controller is signal-connected to the extraction device 2 and the fuel level sensor 5, the controller is used to control the extraction device 2 to start the first oil pipe 3 to supply fuel when the fuel level sensor 5 detects that the liquid level at the front end of the fuel tank body 1 is greater than or equal to a set threshold, and to control the extraction device 2 to start the first oil pipe 3 and the second oil pipe 4 to supply fuel when the fuel level sensor 5 detects that the liquid level at the front end of the fuel tank body 1 is lower than the set threshold.

[0040] For example, the extraction device 2 is installed on the top of the fuel tank body 1. The first extraction end of the extraction device 2 is connected to the first oil pipe 3. The bottom end of the first oil pipe 3 is inserted near the front end of the fuel tank body 1, ensuring that it is inserted into the front half of the fuel tank body 1. The front and rear ends of the fuel tank body 1 are in the direction of the vehicle length. The second extraction end of the extraction device 2 is connected to the second oil pipe 4. The bottom end of the second oil pipe 4 is inserted near the rear end of the fuel tank body 1, ensuring that it is inserted into the rear half of the fuel tank body 1. The bottom end of the second oil pipe 4 can also be connected to the bottom surface of the fuel tank body 1. The fuel level sensor 5 can be installed on the top of the fuel tank body 1, separately from the first oil pipe 3 and the second oil pipe 4. Alternatively, the fuel level sensor 5, the first oil pipe 3, and the second oil pipe 4 can be integrated into one unit to improve the integration.

[0041] Specifically, when the vehicle is going downhill, the fuel in the fuel tank 1 flows to the front end of the tank. The first fuel line 3, inserted into the front end of the tank, ensures that the extraction device 2 can continuously extract fuel concentrated in the front end of the tank. When the vehicle is going uphill, the fuel in the fuel tank 1 flows to the rear end. The fuel level sensor 5 detects when the fuel level at the front end of the tank is below a set threshold. When this occurs, the controller activates the extraction device 2 to simultaneously supply fuel via the first and second fuel lines 3 and 4, ensuring a fuel supply for the vehicle going uphill. This solves the risk of fuel shortage during uphill and downhill driving in related technologies.

[0042] In conjunction with the first aspect, in one implementation, such as Figure 1 and Figure 2As shown, the extraction device 2 may include: an oil pump 201, one end of which is connected to the first oil pipe 3, and the other end of which is connected to the oil supply end of the engine body; a first control valve 202, which is connected between the first oil pipe 3 and the second oil pipe 4; when the oil level sensor 5 detects that the liquid level at the front end of the oil tank body 1 is lower than a set threshold, the controller controls the first control valve 202 to connect the first oil pipe 3 and the second oil pipe 4.

[0043] For example, the oil pump 201 can be installed on the top of the oil tank body 1. The extraction end of the oil pump 201 is connected to the top of the first oil pipe 3, and its output end is connected to the oil supply end of the engine body 8. The first control valve 202 is installed between the top of the first oil pipe 3 and the top of the second oil pipe 4. When the oil level sensor 5 detects that the liquid level at the front end of the oil tank body 1 is lower than the set threshold, the controller controls the first control valve 202 to connect to the first oil pipe 3 and the second oil pipe 4, so that the oil pump 201 can simultaneously extract oil from the front and rear end areas of the oil tank body 1, ensuring that the vehicle has a sufficient supply of oil when facing an uphill state.

[0044] In conjunction with the first aspect, in one implementation, such as Figure 1 and Figure 2 As shown, the fuel tank also includes a first partition 6, which is fixed inside the fuel tank body 1. Along the length of the vehicle body, the first partition 6 divides the fuel tank body 1 into a fuel supply chamber 101 and a fuel storage chamber 102. Along the height of the vehicle body, the upper part of the first partition 6 has a plurality of first oil passage holes 601. The first oil pipe 3 is located in the fuel supply chamber 101, and the second oil pipe 4 is located in the fuel storage chamber 102. The extraction device 2 also includes a third oil pipe 203, one end of which is inserted into the fuel supply chamber 101, and the third oil pipe 203 is connected to the first oil pipe 3 by a second control valve 204. When the oil level sensor 5 detects that the liquid level at the front end of the fuel tank body 1 is lower than a set threshold, the controller controls the first control valve 202 to connect to the first oil pipe 3 and the second oil pipe 4, and the second control valve 204 to connect to the first oil pipe 3 and the third oil pipe 203.

[0045] For example, the first partition 6 is vertically fixed inside the fuel tank body 1, dividing the interior of the fuel tank body 1 into a fuel supply chamber 101 and a fuel storage chamber 102. Its first fuel passage 601 connects the upper parts of the fuel supply chamber 101 and the fuel storage chamber 102. The first fuel passage 601 can reduce the impact of fuel volume caused by vehicle inertia, thus reducing the risk of vehicle operation. Simultaneously, when the vehicle is about to leave the factory, a small amount of fuel can be added to the fuel supply chamber 101 to meet the vehicle's departure requirements, thereby reducing factory and transportation costs. When the vehicle faces an uphill slope, the oil level sensor 5 detects that the liquid level at the front end of the oil tank body 1 is lower than the set threshold. The controller controls the first control valve 202 to connect to the first oil pipe 3 and the second oil pipe 4, and the second control valve 204 to connect to the first oil pipe 3 and the third oil pipe 203. Through the first oil pipe 3 and the second oil pipe 4, the oil pump 201 simultaneously draws oil from the front and rear ends of the oil tank body 1, ensuring that the vehicle has a sufficient supply of oil when facing an uphill slope. At the same time, the oil in the oil storage chamber 102 is partially replenished to the oil supply chamber 101 through the third oil pipe 203, thus replenishing the oil supply chamber 101. This means that when facing an uphill slope again in a short time, it is not necessary to supply oil through the first oil pipe 3 and the second oil pipe 4 at the same time. This reduces the number of times the vehicle needs to supply oil through the first oil pipe 3 and the second oil pipe 4 when facing intermittent uphill roads, improving its practicality and economy.

[0046] In conjunction with the first aspect, in one embodiment, the inner diameter of the third oil pipe 203 is smaller than the inner diameter of the first oil pipe 3. For example, when the vehicle is facing an uphill slope, the first oil pipe 3 and the second oil pipe 4 ensure that the oil pump 201 simultaneously draws oil from the front and rear ends of the fuel tank body 1, guaranteeing a sufficient fuel supply when the vehicle is facing an uphill slope. Simultaneously, oil in the oil storage chamber 102 is partially replenished to the fuel supply chamber 101 through the third oil pipe 203, thus replenishing the fuel supply chamber 101. Because the third oil pipe 203 acts as a diversion device, it effectively diverts fuel from the engine's fuel supply end. Therefore, by making the inner diameter of the third oil pipe 203 smaller than that of the first oil pipe 3, the amount of fuel diverted by the third oil pipe 203 can be reduced. Under the premise of ensuring normal fuel supply, replenishing the fuel supply chamber 101 through the third oil pipe 203 reduces the number of times the vehicle needs to be refueled via the first oil pipe 3 and the second oil pipe 4 when facing intermittent uphill roads, improving its practicality and economy.

[0047] In conjunction with the first aspect, in one implementation, such as Figure 1As shown, the fuel tank also includes a second partition 7, which is fixed inside the fuel tank body 1. The second partition 7 is located within the fuel storage chamber 102 and has multiple second oil passage holes 701 along the vehicle height direction. For example, the second partition 7 is vertically fixed to the inner top of the fuel tank body 1, and the multiple second oil passage holes 701 along the vehicle height direction can further reduce the impact damage caused by vehicle inertia to the fuel in the fuel storage chamber 102.

[0048] In conjunction with the first aspect, in one implementation, such as Figure 1 As shown, the second oil pipe 4 may include: a first pipe body 401 and a second pipe body 402, one end of the first pipe body 401 being connected to the extraction device 2, and one end of the second pipe body 402 being connected to the rear end of the oil tank body 1; and a filter device 403, which is connected to the other end of the first pipe body 401 and the other end of the second pipe body 402. For example, the filter device 403 can be used to coarsely filter the oil in the oil storage chamber 102, improving the service life of the engine body 8. The filter device 403 may include a filter canister and a filter screen, with the filter screen installed in the filter canister, and the filter canister being connected to the other end of the first pipe body 401 and the other end of the second pipe body 402.

[0049] In conjunction with the first aspect, in one implementation, such as Figure 1 As shown, one end of the first tube 401 penetrates the fuel tank body 1 and is connected to the extraction device 2. For example, the first tube 401 can be embedded in the fuel supply chamber 101. Setting the first tube 401 inside the fuel tank body 1 can improve the service life of the first tube 401, prevent damage from the outside, and thus improve the safety of the fuel tank body 1.

[0050] In conjunction with the first aspect, in one embodiment, flushing ports are provided on both the top and bottom surfaces of the fuel tank body 1. For example, flushing ports can be provided on the top and bottom of the fuel supply chamber 101 and the fuel storage chamber 102 of the fuel tank body 1, making the inner cavity of the fuel tank body 1 easy to flush and clean.

[0051] Secondly, such as Figure 1As shown, this application embodiment provides an engine fuel supply system, which may include: a fuel tank body 1, wherein the fuel tank body 1 is equipped with an extraction device 2, a first extraction end of the extraction device 2 is connected to a first oil pipe 3, the first oil pipe 3 is inserted into the front end of the fuel tank body 1, and a second extraction end of the extraction device 2 is connected to a second oil pipe 4, the second oil pipe 4 is inserted into the rear end of the fuel tank body 1; a fuel level sensor 5, which is used to monitor the fuel level at the front end of the fuel tank body 1; and a controller, which is signal-connected to the extraction device 2 and the fuel level sensor 5, and when the fuel level sensor 5 monitors the fuel level at the front end of the fuel tank body 1... When the liquid level at the front end of the tank body 1 is greater than or equal to a set threshold, the controller controls the extraction device 2 to start the first oil pipe 3 to supply oil. When the oil level sensor 5 detects that the liquid level at the front end of the tank body 1 is lower than the set threshold, the controller controls the extraction device 2 to start the first oil pipe 3 and the second oil pipe 4 to supply oil. The engine body 8 has a fourth oil pipe 9 connected to its oil supply end. The fourth oil pipe 9 is connected to the first output end of the extraction device 2, and a fifth oil pipe 10 is connected to the oil return end of the engine body 8. The fifth oil pipe 10 is inserted into the front end of the tank body 1.

[0052] For example, the extraction device 2 is installed on the top of the fuel tank body 1. The first extraction end of the extraction device 2 is connected to the first oil pipe 3. The bottom end of the first oil pipe 3 is inserted near the front end of the fuel tank body 1, ensuring that it is inserted into the front half of the fuel tank body 1. The front and rear ends of the fuel tank body 1 are in the direction of the vehicle length. The second extraction end of the extraction device 2 is connected to the second oil pipe 4. The bottom end of the second oil pipe 4 is inserted near the rear end of the fuel tank body 1, ensuring that it is inserted into the rear half of the fuel tank body 1. The bottom end of the second oil pipe 4 can also be connected to the bottom surface of the fuel tank body 1. The fuel level sensor 5 can be installed on the top of the fuel tank body 1, separately from the first oil pipe 3 and the second oil pipe 4. Alternatively, the fuel level sensor 5, the first oil pipe 3, and the second oil pipe 4 can be integrated into one unit to improve the integration.

[0053] Specifically, when the vehicle is going downhill, the fuel in the fuel tank 1 flows to the front end of the tank. The first fuel line 3, inserted into the front end of the tank, ensures that the extraction device 2 can continuously extract fuel concentrated in the front end of the tank. When the vehicle is going uphill, the fuel in the fuel tank 1 flows to the rear end. The fuel level sensor 5 detects when the fuel level at the front end of the tank is below a set threshold. When this occurs, the controller activates the extraction device 2 to simultaneously supply fuel via the first and second fuel lines 3 and 4, ensuring a fuel supply for the vehicle going uphill. This solves the risk of fuel shortage during uphill and downhill driving in related technologies.

[0054] In conjunction with the second aspect, in one implementation method, such as Figure 1and Figure 2 As shown, the extraction device 2 may include: an oil pump 201, one end of which is connected to the first oil pipe 3, and the other end of which is connected to the fuel supply end of the engine; a first control valve 202, which is connected between the first oil pipe 3 and the second oil pipe 4; when the oil level sensor 5 detects that the liquid level at the front end of the oil tank body 1 is lower than a set threshold, the controller controls the first control valve 202 to connect the first oil pipe 3 and the second oil pipe 4.

[0055] For example, the oil pump 201 can be installed on the top of the oil tank body 1. The extraction end of the oil pump 201 is connected to the top of the first oil pipe 3, and its output end is connected to the oil supply end of the engine body 8. The first control valve 202 is installed between the top of the first oil pipe 3 and the top of the second oil pipe 4. When the oil level sensor 5 detects that the liquid level at the front end of the oil tank body 1 is lower than the set threshold, the controller controls the first control valve 202 to connect to the first oil pipe 3 and the second oil pipe 4, so that the oil pump 201 can simultaneously extract oil from the front and rear end areas of the oil tank body 1, ensuring that the vehicle has a sufficient supply of oil when facing an uphill state.

[0056] In conjunction with the second aspect, in one implementation method, such as Figure 1 and Figure 2 As shown, the fuel tank also includes a first partition 6, which is fixed inside the fuel tank body 1. Along the length of the vehicle body, the first partition 6 divides the fuel tank body 1 into a fuel supply chamber 101 and a fuel storage chamber 102. Along the height of the vehicle body, the upper part of the first partition 6 has a plurality of first oil passage holes 601. The first oil pipe 3 is located in the fuel supply chamber 101, and the second oil pipe 4 is located in the fuel storage chamber 102. The extraction device 2 also includes a third oil pipe 203, one end of which is inserted into the fuel supply chamber 101, and the third oil pipe 203 is connected to the first oil pipe 3 by a second control valve 204. When the oil level sensor 5 detects that the liquid level at the front end of the fuel tank body 1 is lower than a set threshold, the controller controls the first control valve 202 to connect to the first oil pipe 3 and the second oil pipe 4, and the second control valve 204 to connect to the first oil pipe 3 and the third oil pipe 203.

[0057] For example, the first partition 6 is vertically fixed inside the fuel tank body 1, dividing the interior of the fuel tank body 1 into a fuel supply chamber 101 and a fuel storage chamber 102. Its first fuel passage 601 connects the upper parts of the fuel supply chamber 101 and the fuel storage chamber 102. The first fuel passage 601 can reduce the impact of fuel volume caused by vehicle inertia, thus reducing the risk of vehicle operation. Simultaneously, when the vehicle is about to leave the factory, a small amount of fuel can be added to the fuel supply chamber 101 to meet the vehicle's departure requirements, thereby reducing factory and transportation costs. When the vehicle faces an uphill slope, the oil level sensor 5 detects that the liquid level at the front end of the oil tank body 1 is lower than the set threshold. The controller controls the first control valve 202 to connect to the first oil pipe 3 and the second oil pipe 4, and the second control valve 204 to connect to the first oil pipe 3 and the third oil pipe 203. Through the first oil pipe 3 and the second oil pipe 4, the oil pump 201 simultaneously draws oil from the front and rear ends of the oil tank body 1, ensuring that the vehicle has a sufficient supply of oil when facing an uphill slope. At the same time, the oil in the oil storage chamber 102 is partially replenished to the oil supply chamber 101 through the third oil pipe 203, thus replenishing the oil supply chamber 101. This means that when facing an uphill slope again in a short time, it is not necessary to supply oil through the first oil pipe 3 and the second oil pipe 4 at the same time. This reduces the number of times the vehicle needs to supply oil through the first oil pipe 3 and the second oil pipe 4 when facing intermittent uphill roads, improving its practicality and economy.

[0058] Thirdly, embodiments of this application provide a vehicle that includes an engine fuel supply system as described in some of the above embodiments.

[0059] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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 this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" 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; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0060] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0061] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A fuel tank, characterized in that its... include: The fuel tank body (1) is equipped with an extraction device (2). The first extraction end of the extraction device (2) is connected to a first oil pipe (3). The first oil pipe (3) is inserted into the front end of the fuel tank body (1). The second extraction end of the extraction device (2) is connected to a second oil pipe (4). The second oil pipe (4) is inserted into the rear end of the fuel tank body (1). The output end of the extraction device (2) is used to connect with the fuel supply end of the engine body (8). An oil level sensor (5) is installed on the oil tank body (1) to monitor the liquid level at the front end of the oil tank body (1); The controller is connected to the extraction device (2) and the oil level sensor (5). The controller is used to control the extraction device (2) to start the first oil pipe (3) to supply oil when the oil level sensor (5) detects that the liquid level at the front end of the oil tank body (1) is greater than or equal to a set threshold, and to control the extraction device (2) to start the first oil pipe (3) and the second oil pipe (4) to supply oil when the oil level sensor (5) detects that the liquid level at the front end of the oil tank body (1) is lower than a set threshold. The extraction device (2) includes: Oil pump (201), one end of which is connected to the first oil pipe (3), and the other end of which is used to connect to the oil supply end of the engine body (8); The first control valve (202) is connected between the first oil pipe (3) and the second oil pipe (4); When the oil level sensor (5) detects that the liquid level at the front end of the oil tank body (1) is lower than the set threshold, the controller controls the first control valve (202) to connect the first oil pipe (3) and the second oil pipe (4). The fuel tank also includes a first partition (6), which is fixed inside the fuel tank body (1). Along the length of the vehicle body, the first partition (6) divides the fuel tank body (1) into a fuel supply chamber (101) and a fuel storage chamber (102). Along the height of the vehicle body, the upper part of the first partition (6) is provided with a plurality of first oil passage holes (601). The first oil pipe (3) is located in the oil supply chamber (101), and the second oil pipe (4) is located in the oil storage chamber (102); The extraction device (2) further includes a third oil pipe (203), one end of which is inserted into the oil supply chamber (101), and the third oil pipe (203) is connected to the first oil pipe (3) by a second control valve (204). When the oil level sensor (5) detects that the liquid level at the front end of the oil tank body (1) is lower than the set threshold, the controller controls the first control valve (202) to connect the first oil pipe (3) to the second oil pipe (4) and the second control valve (204) to connect the first oil pipe (3) to the third oil pipe (203). The inner diameter of the third oil pipe (203) is smaller than the inner diameter of the first oil pipe (3).

2. The fuel tank as described in claim 1, characterized in that, The fuel tank also includes a second partition (7), which is fixed inside the fuel tank body (1). The second partition (7) is located inside the fuel storage chamber (102). Along the height direction of the vehicle body, the second partition (7) has a plurality of second oil passage holes (701).

3. The fuel tank as described in claim 1, characterized in that, The second oil pipe (4) includes: The first tube (401) and the second tube (402) are connected, with one end of the first tube (401) connected to the extraction device (2) and one end of the second tube (402) connected to the rear end of the oil tank body (1). A filter device (403) is connected to the other end of the first tube (401) and the other end of the second tube (402).

4. The fuel tank as described in claim 3, characterized in that, One end of the first tube (401) passes through the oil tank body (1) and is connected to the extraction device (2).

5. The fuel tank as described in claim 1, characterized in that, The top and bottom surfaces of the oil tank body (1) are provided with flushing ports.

6. An engine fuel supply system comprising a fuel tank as described in any one of claims 1-5, characterized in that, It includes: The fuel tank body (1) is equipped with an extraction device (2). The first extraction end of the extraction device (2) is connected to a first oil pipe (3). The first oil pipe (3) is inserted into the front end of the fuel tank body (1). The second extraction end of the extraction device (2) is connected to a second oil pipe (4). The second oil pipe (4) is inserted into the rear end of the fuel tank body (1). Oil level sensor (5) is used to monitor the liquid level at the front end of the oil tank body (1); The controller is connected to the extraction device (2) and the oil level sensor (5). When the oil level sensor (5) detects that the liquid level at the front end of the oil tank body (1) is greater than or equal to a set threshold, the controller controls the extraction device (2) to start the first oil pipe (3) to supply oil. When the oil level sensor (5) detects that the liquid level at the front end of the oil tank body (1) is lower than the set threshold, the controller controls the extraction device (2) to start the first oil pipe (3) and the second oil pipe (4) to supply oil. The engine body (8) has a fourth oil pipe (9) connected to the oil supply end of the engine body (8), the fourth oil pipe (9) is connected to the first output end of the extraction device (2), and the oil return end of the engine body (8) is connected to a fifth oil pipe (10), the fifth oil pipe (10) is inserted into the front end of the oil tank body (1).

7. A vehicle, characterized in that, It includes the engine fuel supply system as described in claim 6.

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