Heavy truck fuel tank

Abstract

The heavy truck fuel tank comprises a tank body, and the inner wall of the tank body comprises a top wall, a bottom wall, a front side wall and a rear side wall, the top wall and the bottom wall are oppositely arranged in the vertical direction of a heavy truck, and the front side wall and the rear side wall are oppositely arranged in the longitudinal direction of the heavy truck. The uphill oil blocking structure is connected to the bottom wall in a sealed mode, and when the front side wall is higher than the rear side wall, the uphill oil blocking structure can block fuel oil from flowing backwards. The downhill oil blocking structure is connected to the bottom wall in a sealed mode, and when the front side wall is lower than the rear side wall, the downhill oil blocking structure can block fuel oil from flowing forwards. And the oil absorption structure is arranged on the box body, and an oil absorption opening of the oil absorption structure can absorb oil blocked by the uphill oil blocking structure and oil blocked by the downhill oil blocking structure. According to the fuel tank for the heavy truck, when the truck is in an uphill and downhill working condition, the uphill oil blocking structure and the downhill oil blocking structure can be used for blocking collected fuel oil to ensure that the oil suction port of the oil suction structure is in full contact with oil liquid, so that the hidden danger of insufficient power or even flameout of the truck is reduced; meanwhile, the fuel oil utilization rate is increased, the endurance mileage of the vehicle is increased, and then the customer satisfaction is improved.

Description

Technical Field

[0001] The present application relates to the technical field of fuel tanks, and in particular to a fuel tank for a heavy truck. Background Art

[0002] When the existing heavy-duty truck fuel tank is used, the fuel in the middle of the bottom of the fuel tank is sucked through the oil suction pipe to ensure the normal operation of the engine. When the vehicle is in a low-liquid-level uphill or downhill condition, the fuel will flow to the lowest point of the fuel tank due to gravity, resulting in the oil suction port in the middle of the bottom of the fuel tank not being able to fully contact the oil, which is more likely to cause the vehicle to lack power or even stall, posing a safety hazard; at the same time, it causes part of the fuel to be unusable when going uphill or downhill, resulting in a decrease in fuel utilization, reducing the vehicle's cruising range, and more likely to cause customer dissatisfaction.

[0003] In addition, when the vehicle is running at a low fluid level, the oil will collide with the fuel tank wall and produce noise, which will also cause customer dissatisfaction. Summary of the invention

[0004] In view of this, the purpose of this application is to provide a heavy-duty truck fuel tank to reduce the risk of insufficient power or even stalling when the vehicle is in uphill or downhill conditions; at the same time, improve fuel utilization, thereby increasing the vehicle's cruising range and thereby improving customer satisfaction.

[0005] In order to achieve the above objectives, this application provides the following technical solutions:

[0006] A heavy truck fuel tank, comprising:

[0007] A box body having an oil storage cavity for storing fuel, wherein the inner wall of the box body comprises a top wall and a bottom wall arranged opposite to each other in the vertical direction of the heavy truck, and a front side wall and a rear side wall arranged opposite to each other in the longitudinal direction of the heavy truck;

[0008] An uphill oil-blocking structure, sealed and connected to the bottom wall, and when the front side wall is higher than the rear side wall, the uphill oil-blocking structure can block the fuel from flowing backwards;

[0009] A downhill oil-blocking structure, sealed and connected to the bottom wall, and capable of blocking the forward flow of fuel when the front side wall is lower than the rear side wall;

[0010] The oil suction structure is arranged on the box body, and the oil suction port of the oil suction structure can absorb the oil blocked by the uphill oil-blocking structure and the oil blocked by the downhill oil-blocking structure.

[0011] Preferably, in the above-mentioned heavy truck fuel tank, the uphill oil-blocking structure and the downhill oil-blocking structure are arranged in a ring to cooperate to form an oil storage pool, and the oil suction port of the oil suction structure is arranged in the oil storage pool;

[0012] Wherein, the first end of the uphill oil-blocking structure and the second end of the downhill oil-blocking structure overlap in the radial direction of the ring and have a gap to form an uphill oil inlet channel for fuel to flow into the oil reservoir;

[0013] The second end of the uphill oil-blocking structure overlaps with the first end of the downhill oil-blocking structure along the radial direction of the ring and has a gap to form a downhill oil inlet channel for fuel to flow into the oil storage tank.

[0014] Preferably, the above-mentioned heavy truck fuel tank further comprises:

[0015] An uphill guide plate, used for guiding the fuel on the front side to the uphill oil inlet channel when the front side wall is higher than the rear side wall, the uphill guide plate being sealingly connected to the bottom wall and located at a position on the front side of the oil reservoir away from the first end of the uphill oil blocking structure, and the uphill guide plate being inclined backward from one end away from the first end of the uphill oil blocking structure to the other end;

[0016] A downhill guide plate is used to guide the fuel on the rear side to the downhill oil inlet channel when the front side wall is lower than the rear side wall. The downhill guide plate is sealingly connected to the bottom wall and is located on the rear side of the oil reservoir away from the first end of the downhill oil resistance structure. The downhill guide plate is inclined forward from one end away from the first end of the downhill oil resistance structure to the other end.

[0017] Preferably, in the above-mentioned heavy truck fuel tank, the oil suction port of the oil suction structure is located at the center of the bottom wall, and the uphill guide plate and the downhill guide plate are symmetrically arranged relative to the center of the bottom wall;

[0018] And / or, the inclination angles of the uphill deflector plate and the downhill deflector plate relative to the transverse direction of the heavy truck are both 20°-60°;

[0019] And / or, the projections of the uphill guide plate and the downhill guide plate along the longitudinal direction of the heavy truck both cover the center position of the bottom wall.

[0020] Preferably, in the above-mentioned heavy truck fuel tank, the inner wall of the tank body includes a left side wall and a right side wall which are arranged opposite to each other in the lateral direction of the heavy truck;

[0021] The first end of the uphill oil-blocking structure is sealed and connected to the bottom of the right side wall;

[0022] The first end of the downhill oil-blocking structure is sealed and connected to the bottom of the left side wall.

[0023] Preferably, in the above-mentioned heavy truck fuel tank, the uphill oil-blocking structure includes a first arc-shaped oil-blocking plate, and the downhill oil-blocking structure includes a second arc-shaped oil-blocking plate, and the first arc-shaped oil-blocking plate and the second arc-shaped oil-blocking plate are both arranged on the bottom wall along the vertical direction of the heavy truck.

[0024] Preferably, in the above-mentioned heavy truck fuel tank, the oil suction port of the oil suction structure is located at the center of the bottom wall;

[0025] The first arc-shaped oil-blocking plate and the second arc-shaped oil-blocking plate are symmetrically arranged relative to the center of the bottom wall.

[0026] Preferably, in the above-mentioned heavy-duty truck fuel tank, the first arc-shaped oil-blocking plate is a first circular arc plate, the second arc-shaped oil-blocking plate is a second circular arc plate, the center of the first circular arc plate and the center of the second circular arc plate are arranged along the transverse direction of the heavy-duty truck, and the center distance between the first circular arc plate and the second circular arc plate is 20-40 mm and / or the center angles are both 180°-270°.

[0027] Preferably, in the above-mentioned heavy truck fuel tank, the uphill oil-blocking structure further comprises a first flat plate, which extends along the tangent direction of the first end of the first arc plate and is sealed and fitted with the bottom of the right side wall;

[0028] The downhill oil-blocking structure also includes a second flat plate extending along the tangent direction of the first end of the second arc plate and sealingly fitting with the bottom of the left side wall.

[0029] Preferably, the above-mentioned heavy truck fuel tank further comprises:

[0030] An oil baffle plate for reducing fuel impact, the oil baffle plate is arranged between the front side wall and the uphill oil-blocking structure and / or between the rear side wall and the downhill oil-blocking structure, and a plurality of oil holes are opened on the oil baffle plate.

[0031] Preferably, in the above-mentioned heavy truck fuel tank, the oil suction structure is a liquid level gauge assembly, the liquid level gauge assembly integrates a liquid level float, an oil suction pipe, an oil return pipe and a filter, and the oil suction pipe is provided with the oil suction port.

[0032] It can be seen from the above technical scheme that the heavy-duty truck fuel tank provided in the present application includes a tank body, having an oil storage cavity for storing fuel, the inner wall of the tank body includes a top wall and a bottom wall arranged opposite to each other in the vertical direction of the heavy-duty truck, and a front side wall and a rear side wall arranged opposite to each other in the longitudinal direction of the heavy-duty truck; an uphill oil-blocking structure, which is sealed and connected to the bottom wall, and when the front side wall is higher than the rear side wall, the uphill oil-blocking structure can block the fuel from flowing backward; a downhill oil-blocking structure, which is sealed and connected to the bottom wall, and when the front side wall is lower than the rear side wall, the downhill oil-blocking structure can block the fuel from flowing forward; an oil suction structure, which is arranged on the tank body, and the oil suction port of the oil suction structure can suck the oil blocked by the uphill oil-blocking structure and the oil blocked by the downhill oil-blocking structure.

[0033] It should be noted that the vertical direction of a heavy truck is the height direction of the heavy truck, that is, the up and down direction, the transverse direction of the heavy truck is the width direction of the heavy truck, that is, the left and right direction, and the longitudinal direction of the heavy truck is the length direction of the heavy truck, that is, the front and back direction.

[0034] When the heavy-duty truck fuel tank provided by the present application is used, the tank body is installed on the heavy-duty truck so that the top wall and the bottom wall of the tank body are arranged relatively along the vertical direction of the heavy-duty truck, and the front side wall and the rear side wall of the tank body are arranged relatively along the longitudinal direction of the heavy-duty truck; then, fuel is injected into the oil storage cavity of the tank body, and fuel is provided to the heavy-duty truck vehicle through the fuel tank. When the vehicle is in a low-liquid-level uphill condition, the front side wall of the tank body is higher than the rear side wall, and the fuel on the front side will flow to the rear side due to the action of gravity. At this time, the uphill oil-blocking structure on the bottom wall of the tank body can prevent the fuel from flowing backward, and the fuel is collected on the front side of the uphill oil-blocking structure. The amount of oil collected can ensure that the oil suction port of the oil suction structure is in full contact with the oil; when the vehicle is in a low-liquid-level downhill condition, the front side wall of the tank body is lower than the rear side wall, and the fuel on the rear side will flow to the front side due to the action of gravity. At this time, the downhill oil-blocking structure on the bottom wall of the tank body can prevent the fuel from flowing forward, and the fuel is collected on the rear side of the downhill oil-blocking structure. The amount of oil collected can ensure that the oil suction port of the oil suction structure is in full contact with the oil.

[0035] To sum up, the heavy-duty truck fuel tank provided in the present application can utilize the uphill oil-blocking structure and the downhill oil-blocking structure to block the collected fuel when the vehicle is in uphill or downhill conditions, so as to ensure that the oil suction port of the oil suction structure is in full contact with the oil, thereby reducing the hidden dangers of insufficient power or even flameout of the vehicle; at the same time, it improves fuel utilization, thereby increasing the vehicle's cruising range, and thereby improving customer satisfaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0037] Figure 1 A schematic diagram of the structure of a heavy truck fuel tank provided in an embodiment of the present application;

[0038] Figure 2 A schematic diagram of the structure of a heavy truck fuel tank provided in an embodiment of the present application with the top wall and left and right side walls of the tank body removed;

[0039] Figure 3 A schematic diagram of the fuel flow direction of the front side of the heavy truck fuel tank provided in an embodiment of the present application when the vehicle is in a low liquid level uphill condition;

[0040] Figure 4 A schematic diagram of the fuel flow direction at the rear side of a heavy truck fuel tank when the vehicle is in a low liquid level downhill condition provided in an embodiment of the present application.

[0041] superior Figure 1-4 middle:

[0042] 1-box body, 11-front side wall, 12-rear side wall, 13-bottom wall, 2-oil suction structure, 3-uphill oil blocking structure, 4-downhill guide plate, 5-downhill oil blocking structure, 6-uphill guide plate, 7-oil baffle plate. DETAILED DESCRIPTION

[0043] The embodiment of the present application provides a heavy-duty truck fuel tank, which can reduce the hidden dangers of insufficient power or even flameout when the vehicle is in uphill or downhill conditions; at the same time, it improves fuel utilization, thereby increasing the vehicle's cruising range and further improving customer satisfaction.

[0044] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0045] like Figure 1-2 As shown, the heavy-duty truck fuel tank provided in the embodiment of the present application includes a tank body 1, which has an oil storage cavity for storing fuel, and the inner wall of the tank body 1 includes a top wall and a bottom wall 13 for being arranged relatively to each other in the vertical direction of the heavy-duty truck, and a front side wall 11 and a rear side wall 12 for being arranged relatively to each other in the longitudinal direction of the heavy-duty truck; an uphill oil-blocking structure 3 is sealed and connected to the bottom wall 13, and when the front side wall 11 is higher than the rear side wall 12, the uphill oil-blocking structure 3 can block the fuel from flowing backward; a downhill oil-blocking structure 5 is sealed and connected to the bottom wall 13, and when the front side wall 11 is lower than the rear side wall 12, the downhill oil-blocking structure 5 can block the fuel from flowing forward; an oil suction structure 2 is arranged on the tank body 1, and the oil suction port of the oil suction structure 2 can suck the oil blocked by the uphill oil-blocking structure 3 and the oil blocked by the downhill oil-blocking structure 5.

[0046] It should be noted that the vertical direction of a heavy truck is the height direction of the heavy truck, that is, the up and down direction, the transverse direction of the heavy truck is the width direction of the heavy truck, that is, the left and right direction, and the longitudinal direction of the heavy truck is the length direction of the heavy truck, that is, the front and back direction.

[0047] When the heavy-duty truck fuel tank provided in the present application is used, the tank body 1 is installed on the heavy-duty truck so that the top wall and the bottom wall 13 of the tank body 1 are relatively arranged in the vertical direction of the heavy-duty truck, and the front side wall 11 and the rear side wall 12 of the tank body 1 are relatively arranged in the longitudinal direction of the heavy-duty truck; then, fuel is injected into the oil storage cavity of the tank body 1, and fuel is provided to the heavy-duty truck vehicle through the fuel tank. When the vehicle is in a low-liquid-level uphill condition, the front side wall 11 of the tank body 1 is higher than the rear side wall 12, and the fuel on the front side will flow to the rear side due to gravity. At this time, the uphill oil-blocking structure 3 on the bottom wall 13 of the tank body 1 can block the fuel from flowing backwards, and collect the fuel on the front side of the uphill oil-blocking structure 3. The amount of oil collected can ensure that the oil suction port of the oil suction structure 2 is in full contact with the oil. Figure 3 As shown; when the vehicle is in a low-liquid-level downhill condition, the front side wall 11 of the tank body 1 is lower than the rear side wall 12, and the fuel on the rear side will flow to the front side due to gravity. At this time, the downhill oil-blocking structure 5 on the bottom wall 13 of the tank body 1 can block the forward flow of the fuel and collect the fuel on the rear side of the downhill oil-blocking structure 5. The amount of oil collected can ensure that the oil suction port of the oil suction structure 2 is in full contact with the oil, as shown in FIG. Figure 4 shown.

[0048] To sum up, the heavy-duty truck fuel tank provided in the present application can utilize the uphill oil-blocking structure 3 and the downhill oil-blocking structure 5 to block the collected fuel when the vehicle is in uphill or downhill conditions, so as to ensure that the oil suction port of the oil suction structure 2 is in full contact with the oil, thereby reducing the hidden dangers of insufficient power or even flameout of the vehicle; at the same time, it improves fuel utilization, thereby increasing the vehicle's cruising range, and thereby improving customer satisfaction.

[0049] Preferably, the uphill oil-blocking structure 3 and the downhill oil-blocking structure 5 are arranged in a ring shape to cooperate to form an oil storage pool, and the oil suction port of the oil suction structure 2 is set in the oil storage pool; wherein, the first end of the uphill oil-blocking structure 3 overlaps with the second end of the downhill oil-blocking structure 5 along the radial direction of the ring and has a gap to form an uphill oil inlet channel for fuel to flow into the oil storage pool; the second end of the uphill oil-blocking structure 3 overlaps with the first end of the downhill oil-blocking structure 5 along the radial direction of the ring and has a gap to form a downhill oil inlet channel for fuel to flow into the oil storage pool.

[0050] In this embodiment, the oil storage pool is formed by the cross-arranged downhill oil-blocking structure 5 and the uphill oil-blocking structure 3. Figure 2 As shown, the oil reservoir is blocked on all sides, the space is relatively closed, and the fuel collection effect is better; there is one oil suction port, which is immersed in the oil reservoir in real time. When the vehicle is in uphill or downhill conditions, the oil enters the oil reservoir through the uphill oil inlet channel or the downhill oil inlet channel. Due to the blocking of the front and rear sides of the oil reservoir by the downhill oil blocking structure 5 and the uphill oil blocking structure 3, the oil is not easy to flow out of the oil reservoir, thereby increasing the amount of fuel collected, further reducing the hidden dangers of insufficient power or even flameout of the vehicle, and at the same time further improving fuel utilization, increasing cruising range, and reducing customer complaints.

[0051] It is understandable that the uphill oil-blocking structure 3 and the downhill oil-blocking structure 5 may have no intersection, and may be arranged separately in the front and back, with the uphill oil-blocking structure 3 forming an uphill oil collecting chamber, and the downhill oil-blocking structure 5 forming a downhill oil collecting chamber, respectively intercepting and collecting the fuel when going uphill and downhill. At this time, the oil suction structure 2 has two oil suction ports, which are respectively set in the uphill oil collecting chamber and the downhill oil collecting chamber.

[0052] In order to further facilitate the collection of fuel, the heavy-duty truck fuel tank provided in the above embodiment also includes an uphill guide plate 6, which is used to guide the fuel on the front side to the uphill oil inlet channel when the front side wall 11 is higher than the rear side wall 12. The uphill guide plate 6 is sealedly connected to the bottom wall 13 and is located on the front side of the oil reservoir, away from the first end of the uphill oil-blocking structure 3. The uphill guide plate 6 is tilted backward from one end away from the first end of the uphill oil-blocking structure 3 to the other end; the downhill guide plate 4 is used to guide the fuel on the rear side to the downhill oil inlet channel when the front side wall 11 is lower than the rear side wall 12. The downhill guide plate 4 is sealedly connected to the bottom wall 13 and is located on the rear side of the oil reservoir, away from the first end of the downhill oil-blocking structure 5. The downhill guide plate 4 is tilted forward from one end away from the first end of the downhill oil-blocking structure 5 to the other end.

[0053] The uphill guide plate 6 is used to guide the fuel on the front side to the uphill oil inlet channel so as to enter the oil reservoir; the downhill guide plate 4 is used to guide the fuel on the rear side to the downhill oil inlet channel so as to enter the oil reservoir when going downhill.

[0054] The embodiment of the present application adds two guide plates, an uphill guide plate 6 and a downhill guide plate 4, at the bottom of the box body 1. When the vehicle is in uphill or downhill conditions, the fuel enters the uphill oil inlet channel or the downhill oil inlet channel under the action of the guide plates, and then enters the oil reservoir. The guide plates can promote the fuel to enter the oil inlet channel, thereby increasing the amount of fuel entering the oil reservoir, further reducing the risk of insufficient power or even stalling of the vehicle, while further improving fuel utilization, increasing cruising range, and reducing customer complaints.

[0055] Specifically, the uphill guide plate 6 is welded to the bottom of the box body 1 to be sealed and connected to the bottom wall 13, and the downhill guide plate 4 is welded to the bottom of the box body 1 to be sealed and connected to the bottom wall 13. The structure is simple and convenient for processing and assembly. Alternatively, the two guide plates can also be integrally formed with the box body 1 to achieve the same sealing connection effect.

[0056] Alternatively, the present application can also enable the uphill oil-blocking structure 3 and the downhill oil-blocking structure 5 to themselves form a diversion structure that promotes the oil to enter the oil reservoir, so as to achieve the same effect of increasing the amount of oil collected.

[0057] Preferably, the oil suction port of the oil suction structure 2 is located at the center of the bottom wall 13, so that the front and rear fuel at a low liquid level in the tank 1 can be utilized to the maximum extent, thereby improving the fuel utilization rate.

[0058] In order to further simplify the structure, the uphill guide plate 6 and the downhill guide plate 4 are symmetrically arranged relative to the center of the bottom wall 13; in this embodiment, the uphill guide plate 6 can overlap with the downhill guide plate 4 after rotating 180 degrees around the center of the bottom wall 13, so that the guide plates on the front and rear sides of the box body 1 are symmetrical, which is convenient for processing and assembly.

[0059] The inclination angles of the uphill guide plate 6 and the downhill guide plate 4 relative to the lateral direction of the heavy truck are both 20°-60°; specifically, the inclination angles of the guide plates relative to the left and right directions of the heavy truck are 20°, 30°, 45° or 60°, etc., which can reduce the space between the non-guide side of the guide plate and the oil storage tank while ensuring a better guide effect, thereby reducing the oil storage dead angle and improving fuel utilization.

[0060] The projections of the uphill guide plate 6 and the downhill guide plate 4 along the longitudinal direction of the heavy truck both cover the center of the bottom wall 13. In this way, the guide plate exceeds half of the left and right widths of the box body 1, while ensuring the diversion effect, avoiding blocking the inlet of the oil inlet channel of the oil reservoir, thereby improving the collection effect of the fuel.

[0061] Specifically, the uphill guide plate 6 and the downhill guide plate 4 are spaced apart from the oil reservoir, which facilitates assembly while ensuring the fluidity of the fuel in the dead corner of the oil storage, and facilitates the flow of the fuel during normal driving.

[0062] The top surfaces of the uphill guide plate 6 and the downhill guide plate 4 are flat surfaces, specifically rectangular plates, which have a simple structure and are convenient for processing and welding on the box body 1.

[0063] In a preferred embodiment, the inner wall of the box body 1 includes a left side wall and a right side wall which are arranged opposite to each other in the transverse direction of the heavy truck; the first end of the uphill oil-blocking structure 3 is sealed and connected to the bottom of the right side wall; the first end of the downhill oil-blocking structure 5 is sealed and connected to the bottom of the left side wall; this can prevent the fuel from flowing to the rear side through the gap between the first end of the uphill oil-blocking structure 3 and the bottom of the right side wall when going uphill; and from flowing to the front side through the gap between the first end of the downhill oil-blocking structure 5 and the bottom of the left side wall when going downhill, thereby ensuring that the fuel can only flow into the oil storage tank through the uphill oil inlet channel and the downhill oil inlet channel, further improving the fuel collection effect.

[0064] In a specific embodiment, the uphill oil-blocking structure 3 includes a first arc-shaped oil-blocking plate, and the downhill oil-blocking structure 5 includes a second arc-shaped oil-blocking plate, and the first arc-shaped oil-blocking plate and the second arc-shaped oil-blocking plate are both arranged on the bottom wall 13 along the vertical direction of the heavy truck. In this embodiment, the first arc-shaped oil-blocking plate and the second arc-shaped oil-blocking plate cooperate to form an oil storage tank with an arc-shaped edge, and the uphill oil inlet channel and the downhill oil inlet channel formed by the cooperation of the two are both spiral channels, which can reduce the rapid impact of the oil in combination with the guide plate, and the oil can enter the oil storage tank after rotating in the spiral channel after passing through the guide plate, thereby reducing the impact noise of the oil at a low liquid level.

[0065] Alternatively, the arc-shaped oil-blocking plate may be replaced by a U-shaped plate or a plate of other shapes, as long as they can cooperate to form an oil storage pool.

[0066] Specifically, the first arc-shaped oil-blocking plate is arc-shaped and welded on the bottom wall 13 of the box body 1. When going uphill, the oil enters the uphill oil inlet channel after passing through the uphill guide plate 6, and then enters the oil storage tank surrounded by the first arc-shaped oil-blocking plate and the second arc-shaped oil-blocking plate, which has the functions of blocking, diverting and storing fuel; the second arc-shaped oil-blocking plate is arc-shaped and welded on the bottom wall 13 of the box body 1. When going downhill, the oil enters the downhill oil inlet channel after passing through the downhill guide plate 4, and then enters the oil storage tank surrounded by the first arc-shaped oil-blocking plate and the second arc-shaped oil-blocking plate, which has the functions of blocking, diverting and storing fuel. The arc-shaped oil-blocking plate can also be replaced with an integrally formed oil-blocking protrusion.

[0067] In order to simplify the structure, the first arc-shaped oil blocking plate and the second arc-shaped oil blocking plate are symmetrically arranged relative to the center of the bottom wall 13. In this embodiment, the first arc-shaped oil blocking plate can overlap with the second arc-shaped oil blocking plate after rotating 180 degrees around the center of the bottom wall 13, and the two arc-shaped oil blocking plates have the same structure, which is convenient for processing and assembly.

[0068] In order to further optimize the above technical solution, the first arc-shaped oil-blocking plate is a first circular arc plate, and the second arc-shaped oil-blocking plate is a second circular arc plate. The center of the first circular arc plate and the center of the second circular arc plate are arranged along the horizontal direction of the heavy truck, and the center distance between the first circular arc plate and the second circular arc plate is 20-40 mm and / or the center angle is 180°-270°. In this embodiment, the first arc-shaped oil-blocking plate and the second arc-shaped oil-blocking plate are both circular arc plates, and the two cooperate to form a circular oil storage tank with a regular shape and convenient processing. Of course, the arc-shaped oil-blocking plate can also be in other shapes, such as an involute shape.

[0069] Specifically, the center distance between the first arc plate and the second arc plate is 20-40mm, preferably 30mm, which can ensure the oil inlet clearance of the oil inlet channel on the upper side of the oil reservoir, facilitate the collection of oil, and reduce the outflow from the oil inlet channel on the lower side of the oil reservoir, thereby increasing the oil storage capacity.

[0070] The central angles of the first arc plate and the second arc plate are both 180°-270°. The central angle of the arc plate is greater than 180°, and can form a relatively closed ring to ensure the overlapping length of the first arc plate and the second arc plate at both ends, thereby forming an uphill oil inlet channel and a downhill oil inlet channel; the central angle of the arc plate is not greater than 270°, which can avoid excessive overlapping length and facilitate oil collection.

[0071] In this embodiment, Figure 3 As shown, when the vehicle is in an uphill or climbing condition, the fuel at the front end of the fuel tank is diverted by the uphill guide plate 6, and then enters the circular oil storage pool formed between the first arc-shaped oil baffle plate and the second arc-shaped oil baffle plate along the uphill oil inlet channel. The oil suction port of the oil suction structure 2 is immersed in the oil storage pool in real time, thereby realizing the oil diversion and collection function and the oil blocking function when the liquid level is low and going uphill, improving fuel utilization and cruising range, reducing fuel impact noise and the risk of vehicle stalling, and reducing customer complaints.

[0072] like Figure 4 As shown, when the vehicle is in a downhill condition, the fuel at the rear end of the fuel tank is guided by the downhill guide plate 4, and then enters the circular oil storage pool formed between the first arc-shaped oil baffle plate and the second arc-shaped oil baffle plate along the downhill oil inlet channel. The oil suction port of the oil suction structure 2 is immersed in the oil storage pool in real time, thereby realizing the oil diversion and collection function and the oil blocking function when the liquid level is low and downhill, improving fuel utilization and cruising range, reducing fuel impact noise and the risk of vehicle stalling, and reducing customer complaints.

[0073] In order to improve the structural strength, the uphill oil-blocking structure 3 also includes a first flat plate extending along the tangent direction of the first end of the first arc plate and sealingly fitting with the bottom of the right side wall; the downhill oil-blocking structure 5 also includes a second flat plate extending along the tangent direction of the first end of the second arc plate and sealingly fitting with the bottom of the left side wall. The oil-blocking structure of this embodiment is sealed and fitted with the bottom of the side wall by the flat plate set at the first end of the arc plate, which increases the connection area between the oil-blocking structure and the box body 1, thereby improving the impact resistance and extending the service life.

[0074] The heavy truck fuel tank provided in the above embodiment further includes an oil baffle plate 7 for reducing fuel impact, which is arranged between the front side wall 11 and the uphill oil blocking structure 3 and / or between the rear side wall 12 and the downhill oil blocking structure 5, and a plurality of oil holes are provided on the oil baffle plate 7. In this embodiment, the oil baffle plate 7 is welded to the tank body 1, has wave-proof and reinforcement functions, prevents violent shaking of the fuel, and provides structural reinforcement function for the fuel tank.

[0075] Preferably, there are two oil baffles 7, which are symmetrically arranged front to back.

[0076] In a specific embodiment, the oil suction structure 2 is a liquid level gauge assembly, which integrates a liquid level float, an oil suction pipe, an oil return pipe and a filter, and the oil suction pipe is provided with an oil suction port. The liquid level gauge assembly is installed on the box 1, and has the functions of filtering, oil suction, oil return and liquid level monitoring. The structure is integrated and easy to assemble.

[0077] The filter is specifically a coarse filter. The oil suction port is arranged at the bottom of the oil suction pipe, the oil suction pipe is connected with an oil suction pump; and the oil return pipe is connected with the oil return line of the heavy truck.

[0078] It is understandable that in order to ensure the flow of oil inside the box 1, a breathing valve is provided on the top of the box 1 to connect the inside of the box 1 with the outside atmosphere. The box 1 provides structural support for the level gauge assembly, the breathing valve, the oil baffle 7, the guide plate and the oil blocking structure. Specifically, the box 1 is formed by a square tube and end caps welded at both ends of the box, such as Figure 1 As shown, the fuel storage capacity is large, and the structure is simple and easy to process; of course, the box body 1 can also adopt other shapes, such as cylindrical.

[0079] It can be seen that the embodiment of the present application arranges a guide plate and an oil-blocking structure at the bottom of the fuel tank, and adopts a simple structural design to cleverly intercept and collect the fuel at the bottom of the fuel tank, thereby ensuring full contact between the oil suction port and the oil to the maximum extent, and improving fuel utilization and cruising range; taking an 800L fuel tank heavy truck as an example, when the vehicle is in a 30% climbing condition, the amount of fuel that cannot be used is 96L. When the vehicle climbs the slope with 96L of fuel, the vehicle will stall. The oil storage pool formed by the oil-blocking structure of the present application can intercept 49L of the 96L fuel, and the vehicle can still climb the slope. If the 49L fuel is consumed and happens to be in a downhill condition, the remaining fuel will all enter the oil storage pool through the guide plate on the other side, and the vehicle can continue to run until the fuel is consumed.

[0080] The basic principles of the present application are described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, effects, etc. mentioned in the present application are only examples and not limitations, and it cannot be considered that these advantages, strengths, effects, etc. are required by each embodiment of the present application. In addition, the specific details disclosed above are only for the purpose of illustration and ease of understanding, not for limitation, and the above details do not limit the present application to being implemented by adopting the above specific details.

[0081] The block diagrams of the devices, apparatuses, equipment, and systems involved in this application are only illustrative examples and are not intended to require or imply that they must be connected, arranged, and configured in the manner shown in the block diagram. As will be appreciated by those skilled in the art, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any manner. Words such as "including", "comprising", "having", etc. are open words, referring to "including but not limited to", and can be used interchangeably with them. The words "or" and "and" used here refer to the words "and / or" and can be used interchangeably with them, unless the context clearly indicates otherwise. The words "such as" used here refer to the phrase "such as but not limited to", and can be used interchangeably with them.

[0082] It should also be noted that in the apparatus, device and method of the present application, each component or each step can be decomposed and / or recombined. Such decomposition and / or recombination should be regarded as equivalent solutions of the present application.

[0083] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

[0084] It should be understood that the qualifiers "first", "second", "third", "fourth", "fifth" and "sixth" used in the description of the embodiments of the present application are only used to more clearly explain the technical solutions and cannot be used to limit the scope of protection of the present application.

[0085] The above description has been given for the purpose of illustration and description. In addition, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although multiple example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions and sub-combinations thereof.

Claims

1. A heavy truck fuel tank, characterized in that: include: A box body having an oil storage cavity for storing fuel, wherein the inner wall of the box body comprises a top wall and a bottom wall arranged opposite to each other in the vertical direction of the heavy truck, and a front side wall and a rear side wall arranged opposite to each other in the longitudinal direction of the heavy truck; An uphill oil-blocking structure, sealed and connected to the bottom wall, and when the front side wall is higher than the rear side wall, the uphill oil-blocking structure can block the fuel from flowing backwards; A downhill oil-blocking structure, sealed and connected to the bottom wall, and capable of blocking the forward flow of fuel when the front side wall is lower than the rear side wall; The oil suction structure is arranged on the box body, and the oil suction port of the oil suction structure can absorb the oil blocked by the uphill oil-blocking structure and the oil blocked by the downhill oil-blocking structure.

2. The heavy truck fuel tank according to claim 1, characterized in that: The uphill oil-blocking structure and the downhill oil-blocking structure are arranged in a ring shape to cooperate to form an oil storage pool, and the oil suction port of the oil suction structure is arranged in the oil storage pool; Wherein, the first end of the uphill oil-blocking structure and the second end of the downhill oil-blocking structure overlap in the radial direction of the ring and have a gap to form an uphill oil inlet channel for fuel to flow into the oil reservoir; The second end of the uphill oil-blocking structure overlaps with the first end of the downhill oil-blocking structure along the radial direction of the ring and has a gap to form a downhill oil inlet channel for fuel to flow into the oil storage tank.

3. The heavy truck fuel tank according to claim 2, characterized in that: Also includes: An uphill guide plate, used for guiding the fuel on the front side to the uphill oil inlet channel when the front side wall is higher than the rear side wall, the uphill guide plate being sealingly connected to the bottom wall and located at a position on the front side of the oil reservoir away from the first end of the uphill oil blocking structure, and the uphill guide plate being inclined backward from one end away from the first end of the uphill oil blocking structure to the other end; A downhill guide plate is used to guide the fuel on the rear side to the downhill oil inlet channel when the front side wall is lower than the rear side wall. The downhill guide plate is sealingly connected to the bottom wall and is located on the rear side of the oil reservoir away from the first end of the downhill oil resistance structure. The downhill guide plate is inclined forward from one end away from the first end of the downhill oil resistance structure to the other end.

4. The heavy truck fuel tank according to claim 3, characterized in that: The oil suction port of the oil suction structure is located at the center of the bottom wall, and the uphill guide plate and the downhill guide plate are symmetrically arranged relative to the center of the bottom wall; And / or, the inclination angles of the uphill deflector plate and the downhill deflector plate relative to the transverse direction of the heavy truck are both 20°-60°; And / or, the projections of the uphill guide plate and the downhill guide plate along the longitudinal direction of the heavy truck both cover the center position of the bottom wall.

5. The heavy truck fuel tank according to claim 2, characterized in that: The inner wall of the box body includes a left wall and a right wall which are arranged opposite to each other in the transverse direction of the heavy truck; The first end of the uphill oil-blocking structure is sealed and connected to the bottom of the right side wall; The first end of the downhill oil-blocking structure is sealed and connected to the bottom of the left side wall.

6. The heavy truck fuel tank according to claim 5, characterized in that: The uphill oil-blocking structure includes a first arc-shaped oil-blocking plate, and the downhill oil-blocking structure includes a second arc-shaped oil-blocking plate. The first arc-shaped oil-blocking plate and the second arc-shaped oil-blocking plate are both arranged on the bottom wall along the vertical direction of the heavy truck.

7. The heavy truck fuel tank according to claim 6, characterized in that: The oil suction port of the oil suction structure is located at the center of the bottom wall; The first arc-shaped oil-blocking plate and the second arc-shaped oil-blocking plate are symmetrically arranged relative to the center of the bottom wall.

8. The heavy truck fuel tank according to claim 6, characterized in that: The first arc-shaped oil-blocking plate is a first circular arc plate, and the second arc-shaped oil-blocking plate is a second circular arc plate. The center of the first circular arc plate and the center of the second circular arc plate are arranged along the transverse direction of the heavy truck, and the center distance between the first circular arc plate and the second circular arc plate is 20-40mm and / or the center angle is 180°-270°.

9. The heavy truck fuel tank according to claim 8, characterized in that: The uphill oil-blocking structure further comprises a first flat plate, which extends along the tangent direction of the first end of the first arc plate and is sealed and fitted with the bottom of the right side wall; The downhill oil-blocking structure also includes a second flat plate extending along the tangent direction of the first end of the second arc plate and sealingly fitting with the bottom of the left side wall.

10. The heavy truck fuel tank according to any one of claims 1 to 9, characterized in that: Also includes: An oil baffle plate for reducing fuel impact, the oil baffle plate is arranged between the front side wall and the uphill oil-blocking structure and / or between the rear side wall and the downhill oil-blocking structure, and a plurality of oil holes are opened on the oil baffle plate.

11. The heavy truck fuel tank according to any one of claims 1 to 9, characterized in that: The oil suction structure is a liquid level gauge assembly, which integrates a liquid level float, an oil suction pipe, an oil return pipe and a filter, and the oil suction pipe is provided with the oil suction port.

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