CN115139781A - Fuel tank and automobile - Google Patents

Abstract

The invention discloses a fuel tank and an automobile. The fuel tank comprises a fuel tank shell, a fuel storage barrel arranged in the fuel tank shell, and a fuel pump arranged on the fuel storage barrel, and further comprises a positioning connecting piece, a floating oil suction assembly, an oil suction pipeline and an oil suction pump; one end of the positioning connecting piece is connected with the bottom of the oil tank shell, and the other end of the positioning connecting piece is connected with a low-lying position on the top of the oil tank shell; the floating oil absorption assembly is sleeved on the positioning connecting piece and floats on the upper surface of the fuel oil of the fuel tank shell; one end of the oil suction pipeline is connected with the floating oil suction assembly, and the other end of the oil suction pipeline is connected with the oil suction pump; the oil suction pump is arranged on the oil storage barrel. This fuel tank can slow down the fuel right kinetic energy and the pressure that the low-lying position in top of fuel tank shell impacted to solve the fuel and rock the noise problem, and ensure be full of the fuel in the oil storage bucket, the normal work of the fuel pump in the guarantee oil storage bucket, and can save the cost of fuel tank and alleviate the weight of fuel tank.

Description

fuel tank and car

technical field

The invention relates to the technical field of fuel tanks, in particular to a fuel tank and an automobile.

Background technique

With the development of automobile technology, people have higher and higher requirements for the comfort of automobiles, and current automobiles may produce disgusting sounds during braking, cornering and creeping driving conditions, which are collectively referred to as "fuel sloshing noise". At present, for the problem of vehicle fuel sloshing noise, it mainly relies on post-driving evaluation and continuous optimization and iteration, which is extremely time-consuming and labor-intensive, and the cost is high. In the prior art, the method of adding a wave shield in the fuel tank is generally adopted to increase the fuel flow resistance to control the fuel sloshing noise. However, the installation of the wave shield will increase the cost and weight of the vehicle.

SUMMARY OF THE INVENTION

The present invention provides a fuel tank and an automobile, so as to solve the problem of high cost of controlling fuel sloshing noise in the existing fuel tank.

The invention provides a fuel tank, comprising a fuel tank casing, an oil storage barrel arranged in the fuel tank casing, and a fuel pump arranged on the oil storage barrel, and the fuel tank further includes a positioning connector and a floating oil suction assembly , oil suction pipeline and oil suction pump; one end of the positioning connector is connected with the bottom of the oil tank shell, and the other end is connected with the low-lying position on the top of the oil tank shell; the floating oil suction assembly is sleeved on the The positioning connector floats on the upper surface of the fuel oil of the fuel tank shell; the oil suction pipeline is connected with the floating oil suction assembly at one end, and the oil suction pump at the other end; the oil suction pump is arranged on the storage tank. on the oil drum.

Preferably, the floating oil suction assembly includes a floating member and an oil suction box sleeved on the positioning connecting member, the bottom of the floating member is fixedly connected with the top of the oil suction box, and the oil suction box is connected to the oil suction pipe. road connected.

Preferably, the oil suction box includes an oil box shell and an oil pipe joint; the bottom of the oil box shell is provided with an oil suction hole with a downward opening; the oil pipe joint is arranged outside the oil box shell, and is connected with the oil box shell. The suction line is connected.

Preferably, the floating member is a foam member.

Preferably, the oil suction pump includes an ejection pump, and the ejection pump is arranged at the fuel inlet position of the oil storage drum.

Preferably, the oil suction pump includes an ejector pump and an auxiliary pump, the ejection pump is arranged at the fuel inlet position of the oil storage drum, and the auxiliary pump is connected to the fuel pump.

Preferably, the input end of the auxiliary pump is connected to the output end of the oil suction line and the output end of the fuel pump of the oil suction line, and the output end of the auxiliary pump is connected to the bottom of the oil storage barrel Relative settings.

Preferably, the fuel tank further comprises an oil pump outlet provided on the fuel tank housing and a connecting three-way valve and a one-way valve provided in the fuel tank housing; the first end of the connecting three-way valve is connected to the The output end of the fuel pump is connected, the second end of the connecting three-way valve is connected to the outlet of the oil pump, the third end of the connecting three-way valve is connected to the first end of the one-way valve, and the one-way valve is connected to the one-way valve. The second end of the valve is connected to the ejector pump.

Preferably, the oil suction pipeline is a corrugated pipeline.

The present invention provides an automobile including the above-mentioned fuel tank.

An embodiment of the present invention provides a fuel tank and an automobile, a positioning connector is provided between the bottom of the fuel tank housing and the low-lying position on the top of the fuel tank housing, the floating oil suction assembly is sleeved on the positioning connector, and The floating oil suction assembly can float on the upper surface of the fuel oil of the fuel tank shell, so that the floating oil suction assembly is connected with the oil suction pump arranged on the oil storage barrel through the oil suction pipeline. When the fuel in the fuel tank shell shakes, the floating oil suction assembly can be made First contact with the low-lying position on the top of the fuel tank housing to reduce the kinetic energy and pressure of the impact of fuel on the low-lying position on the top of the fuel tank housing to a certain extent, and the floating oil suction assembly can absorb the sloshing fuel and transmit it to the oil storage In the barrel, the kinetic energy and pressure of the impact of the fuel on the low-lying position on the top of the fuel tank shell can be further slowed down, so as to solve the problem of fuel sloshing noise, and ensure that the oil storage barrel is filled with fuel and ensure the fuel pump in the oil storage barrel. normal work. Understandably, since the floating oil suction assembly can float on the fuel upper surface of the fuel tank casing, compared with the traditional structural design that uses a wave breaker to reduce fuel sloshing, it can effectively save the cost of the fuel tank and reduce the weight of the fuel tank. . Using the structural design of positioning connectors, floating oil suction components and oil suction pumps inside the fuel tank shell, there is no need to perform subsequent simulation analysis to calculate the fuel sloshing noise, which saves simulation analysis and calculation resources, and has high mobility for different models. Greatly reduce development costs.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the drawings that are used in the description of the embodiments of the present invention. Obviously, the drawings in the following description are only some embodiments of the present invention. , for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative labor.

1 is a schematic structural diagram of a fuel tank in an embodiment of the present invention;

Fig. 2 is a partial schematic view of the fuel tank in Fig. 1;

FIG. 3 is another partial schematic view of the fuel tank of FIG. 1 .

Among them, 11, fuel tank shell; 12, oil storage barrel; 13, fuel pump; 131, magnet piece; 132, vane runner; 14, positioning connecting piece; 15, floating oil suction assembly; 151, floating piece; 152, oil suction box; 1521, oil box shell; 1522, oil pipe joint; 16, oil suction line; 17, oil suction pump; 171, ejection pump; 172, auxiliary pump; 18, oil pump outlet; 19, connecting three-way valve; 20, Check valve; 21. Flange plate; 22. Exhaust valve; 23. Oil supply pipeline.

Detailed ways

In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present 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 only used to explain the present invention, but not to limit the present invention.

In the description of the present invention, it should be understood that the terms "longitudinal", "radial", "length", "width", "thickness", "upper", "lower", "front", "rear", The orientations or positional relationships indicated by "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, It is only for the convenience of describing the present invention and simplifying the description, not to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as a limitation of the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

An embodiment of the present invention provides a fuel tank, which can be installed on an automobile. As shown in FIGS. 1-3 , the fuel tank includes a fuel tank housing 11 , an oil storage barrel 12 arranged in the fuel tank housing 11 , and a fuel pump 13 arranged on the fuel storage barrel 12 , and the fuel tank also includes a positioning connector 14 , floating oil suction assembly 15, oil suction pipeline 16 and oil suction pump 17; positioning connector 14, one end is connected with the bottom of the fuel tank shell 11, and the other end is connected with the low-lying position on the top of the fuel tank shell 11; floating oil suction assembly 15, sleeved The positioning connector 14 floats on the upper surface of the fuel oil of the fuel tank housing 11 ; the oil suction line 16 is connected to the floating oil suction assembly 15 at one end and the suction pump 17 at the other end;

The fuel tank casing 11 refers to the outer casing of the fuel tank, and the fuel tank casing 11 is used for storing fuel. The oil storage barrel 12 is a container for storing fuel oil arranged in the fuel tank casing 11. The bottom of the oil storage barrel 12 is communicated with the fuel tank casing 11 to ensure that the fuel in the fuel tank casing 11 can enter the oil storage barrel 12 for supply. The fuel pump 13 works normally. The fuel pump 13 is arranged in the oil storage barrel 12 and is used to inhale the fuel from the fuel tank housing 11 to the oil storage barrel 12 and pressurize it, and then output the pressurized fuel to the oil pump outlet through the fuel supply pipeline 23 18, and then transmit to the engine of the car.

The positioning connector 14 is a connector for realizing the positioning and installation of the floating oil suction assembly 15 . As an example, one end of the positioning connector 14 is connected to the bottom of the fuel tank housing 11, and the other end is connected to the low-lying position at the top of the fuel tank housing 11, so as to realize the use of the positioning connector 14 to connect the bottom of the fuel tank housing 11 and the fuel tank housing 11 for the purpose of the top low-lying position. In this example, during the design of the fuel tank, the relevant data of the fuel tank (including but not limited to straps and shock absorbers) can be input into simulation analysis software (such as CATIA software), and the simulation analysis software can be based on the rated volume of the fuel tank. Carry out simulation analysis with relevant data to determine the low-lying position on the top of the fuel tank housing 11, and then fix the positioning connector 14 between the bottom of the fuel tank housing 11 and the low-lying position on the top of the fuel tank housing 11, which helps to ensure that the sleeve is installed on the bottom of the fuel tank housing 11. The floating oil suction assembly 15 on the positioning connector 14 can effectively reduce the kinetic energy and pressure of the impact of fuel sloshing on the low-lying position of the top of the fuel tank housing 11, thereby reducing the noise problem of fuel sloshing.

Among them, the floating oil suction assembly 15 is an assembly for realizing the suction of fuel oil. As an example, the floating oil suction assembly 15 is sleeved on the positioning connecting member 14 and floats on the upper surface of the fuel oil of the fuel tank casing 11, so that the floating oil suction assembly 15 can float up and down along the direction of the positioning connecting member 14 under the action of buoyancy, and Draw fuel. Understandably, since the positioning connector 14 is connected between the bottom of the fuel tank housing 11 and the low-lying position on the top of the fuel tank housing 11 , the floating oil suction assembly 15 is sleeved on the positioning connector 14 and floats on the fuel of the fuel tank housing 11 In the process of fuel shaking, the floating oil suction assembly 15 is always set on the upper surface of the fuel, so that the floating oil suction assembly 15 first contacts the low-lying position on the top of the fuel tank housing 11, which slows down the impact of the fuel on the fuel tank housing to a certain extent. The kinetic energy and pressure of the impact of the low-lying position on the top of the fuel tank housing 11, and regardless of the change of the fuel level in the fuel tank housing 11, the floating oil suction assembly 15 can absorb the sloshing fuel, and further reduce the kinetic energy of the impact of the fuel on the low-lying position on the top of the fuel tank housing 11. and pressure, therefore, can effectively solve the problem of fuel sloshing noise.

Among them, the oil suction line 16 is a pipeline for realizing fuel transmission. The oil suction pump 17 is an oil pump for realizing the suction of fuel. As an example, one end of the oil suction line 16 is connected to the floating oil suction assembly 15, and the other end is connected to the oil suction pump 17, and the oil suction pump 17 is arranged on the oil storage barrel 12. The fuel is transmitted to the oil storage barrel 12 through the oil suction line 16 , which not only avoids the noise problem caused by the shaking of fuel in the fuel tank shell 11 , but also ensures that the oil storage barrel 12 is filled with fuel and ensures the effective operation of the fuel pump 13 .

In the fuel tank provided in this embodiment, a positioning connector 14 is provided between the bottom of the fuel tank housing 11 and the low-lying position on the top of the fuel tank housing 11, and the floating oil suction assembly 15 is sleeved on the positioning connector 14, and floats The oil suction assembly 15 can float on the upper surface of the fuel oil of the fuel tank shell 11, so that the floating oil suction assembly 15 is connected with the oil suction pump 17 arranged on the oil storage barrel 12 through the oil suction line 16. The floating oil suction assembly 15 can be brought into contact with the low-lying position on the top of the fuel tank housing 11 first, so as to reduce the kinetic energy and pressure of the impact of the fuel on the low-lying position on the top of the fuel tank casing 11 to a certain extent, and the floating oil suction assembly 15 can absorb the sloshing fuel and transmit it. In the oil storage barrel 12, the kinetic energy and pressure of the impact of the fuel on the low-lying position of the top of the fuel tank shell 11 can be further slowed down, so as to solve the problem of fuel sloshing noise, and ensure that the oil storage barrel 12 is filled with fuel and ensure that the oil in the oil storage barrel 12 is filled with fuel. The normal operation of the fuel pump 13. Understandably, since the floating oil suction assembly 15 can float on the fuel upper surface of the fuel tank housing 11 , the cost and weight of the fuel tank can be effectively saved compared to the traditional structural design that uses a wave breaker to reduce fuel sloshing. Using the structural design of the positioning connector 14 , the floating oil suction assembly 15 and the oil suction pump 17 inside the fuel tank housing 11 , it is not necessary to perform subsequent simulation analysis to calculate the fuel sloshing noise, which saves simulation analysis and calculation resources, and can be shifted for different models. High performance, greatly reducing development costs.

In one embodiment, as shown in FIG. 3 , the floating oil suction assembly 15 includes a floating member 151 and an oil suction box 152 sleeved on the positioning connecting member 14 , the bottom of the floating member 151 is fixedly connected with the top of the oil suction box 152 , and the oil suction box is 152 is connected to the oil suction line 16 .

The floating member 151 is made of low-density materials. The oil suction box 152 is a component for realizing the oil suction function. As an example, the floating oil suction assembly 15 includes a floating member 151 and an oil suction box 152 sleeved on the positioning connecting member 14 , and the bottom of the floating member 151 is fixedly connected to the top of the oil suction box 152 . Specifically, the bottom of the floating member 151 may be connected to The top of the oil suction box 152 is adhered to form a whole, and the floating member 151 is used to reduce the overall density of the floating oil suction assembly 15 to ensure that the floating oil suction assembly 15 can float on the upper surface of the fuel in the fuel tank housing 11 . Since the top of the oil suction box 152 is fixedly connected with the bottom of the floating member 151, the bottom of the oil suction box 152 is immersed in the fuel in the fuel tank housing 11, and the oil suction box 152 can be connected to the oil suction pump 17 through the oil suction line 16, so as to suck oil The box 152 can transmit the fuel in the fuel tank housing 11 to the fuel storage barrel 12 where the fuel suction pump 17 is located through the fuel suction line 16 . Understandably, when the fuel in the fuel tank casing 11 sloshes, the floating oil suction assembly 15 formed by the floating member 151 and the oil suction box 152 changes as a whole with the change of the fuel level, and the fuel sloshing impacts the top of the fuel tank casing 11 In the low-lying position, the floating member 151 arranged above first contacts the low-lying position on the top of the fuel tank housing 11, to a certain extent, slows down the kinetic energy and pressure of the impact of the fuel on the low-lying position on the top of the fuel tank housing 11, and the oil suction box 152 can absorb The sloshing fuel is transferred to the oil storage barrel 12, which can further reduce the kinetic energy and pressure of the impact of the fuel on the low-lying position on the top of the fuel tank shell 11, so as to solve the problem of fuel sloshing noise, and ensure that the oil storage barrel 12 is filled with fuel oil to ensure storage. The normal operation of the fuel pump 13 in the oil drum 12.

In one embodiment, as shown in FIG. 3 , the oil suction box 152 includes an oil box casing 1521 and an oil pipe joint 1522; the bottom of the oil box casing 1521 is provided with an oil suction hole with an opening downward; the oil pipe joint 1522 is arranged on the oil box shell The outer side of the body 1521 is connected to the oil suction line 16 .

The oil box casing 1521 refers to the outer casing of the oil suction box 152 . The oil pipe joint 1522 is a joint for connecting the oil suction box 152 to the oil suction pipeline 16 . As an example, the oil suction box 152 includes an oil box housing 1521 and an oil pipe joint 1522 . The bottom of the fuel tank housing 1521 is provided with an oil suction hole with a downward opening, so that the fuel suction box 152 floating on the fuel upper surface of the fuel tank housing 11 can absorb fuel. The oil pipe joint 1522 is arranged outside the oil box housing 1521 and is connected to the oil suction line 16 , so that the fuel sucked by the oil suction box 152 can be transferred to the oil storage barrel 12 through the oil suction line 16 . Specifically, if the oil pipe joint 1522 is a male joint, then one end of the oil suction line 16 connected to the oil pipe joint 1522 is provided with a female joint matching the male joint; or the oil pipe joint 1522 is a female joint, then the oil suction pipe connected to the oil pipe joint 1522 One end of the pipeline 16 is provided with a male connector matching the female connector. In this example, the oil box housing 1521 may be a rectangular housing, and any position of the rectangular housing may be provided with an oil pipe joint 1522 for connecting the oil suction line 16 in any of the four directions of front, rear, left, right, and right.

In one embodiment, the floating member 151 is a foam member.

As an example, a foam member is used, and the characteristics of low density and oil resistance of the foam member are used, so that the oil suction box 152 fixedly connected with the foam member can float on the upper surface of the fuel oil of the fuel tank housing 11 as a whole, and will not chemically react with the fuel oil, Helps to ensure its service life, and the foam part has the advantage of lower cost. In this example, the foam member may be a rectangular foam member.

In one embodiment, as shown in FIGS. 1 and 2 , the oil suction pump 17 includes an ejection pump 171 , and the ejection pump 171 is disposed at the fuel inlet position of the oil storage drum 12 .

As an example, when an ejector pump 171 is provided in the fuel tank, the oil suction pump 17 connected to the floating oil suction assembly 15 through the oil suction line 16 is the ejection pump 171, which can transfer the fuel absorbed by the floating oil suction assembly 15 through the fuel oil. The inlet position is transmitted to the oil storage barrel 12. On the one hand, the kinetic energy and pressure formed by the sloshing fuel in the fuel tank shell 11 to the low-lying position on the top of the fuel tank shell 11 are reduced, so as to reduce the noise problem of fuel sloshing. There is enough fuel in the oil drum 12 to ensure the normal operation of the fuel in the oil storage drum 12 .

In one embodiment, as shown in FIG. 1 and FIG. 2 , the oil suction pump 17 includes an ejector pump 171 and an auxiliary pump 172 , the ejection pump 171 is arranged at the fuel inlet position of the oil storage tank 12 , and the auxiliary pump 172 and the fuel pump 13 connected.

As an example, when the ejector pump 171 and the auxiliary pump 172 are provided in the fuel tank, the suction pump 17 connected to the floating oil suction assembly 15 through the oil suction line 16 is the ejection pump 171 and the auxiliary pump 172, and the ejection pump 171 is provided with the ejector pump 171 and the auxiliary pump 172. At the fuel inlet position of the oil storage tank 12, the auxiliary pump 172 is connected to the fuel pump 13, so that the ejector pump 171 can transmit the fuel absorbed by the floating oil suction assembly 15 to the fuel storage tank 12 through the fuel inlet position, and makes the auxiliary pump 172 The fuel oil absorbed by the floating oil suction assembly 15 can be transferred to the fuel pump 13, on the one hand, the kinetic energy and pressure formed by the impact of the fuel in the fuel tank shell 11 on the low-lying position of the top of the fuel tank shell 11 can be reduced, so as to reduce the fuel sloshing noise problem, On the other hand, it can ensure that there is enough fuel in the oil storage barrel 12 to ensure the normal operation of the fuel in the oil storage barrel 12 .

In one embodiment, as shown in FIG. 1 and FIG. 2 , the fuel tank further includes an oil pump outlet 18 provided on the fuel tank housing 11 and a connecting three-way valve 19 and a one-way valve 20 provided in the fuel tank housing 11; The first end of the three-way valve 19 is connected to the output end of the fuel pump 13, the second end of the three-way valve 19 is connected to the fuel pump outlet 18, and the third end of the three-way valve 19 is connected to the first end of the check valve 20. The second end of the one-way valve 20 is connected to the ejection pump 171 .

As an example, the fuel tank further includes a fuel pump outlet 18 disposed on the fuel tank housing 11. The fuel pump outlet 18 is connected to the fuel pump 13, and is used to transmit the fuel pressurized by the fuel pump 13 to other external components through the fuel pump outlet 18, such as engine. The first end of the three-way valve 19 is connected to the output end of the fuel pump 13, the second end of the three-way valve 19 is connected to the fuel pump outlet 18, and the third end of the three-way valve 19 is connected to the first end of the check valve 20. The second end of the one-way valve 20 is connected to the ejection pump 171 . In this example, when the fuel pump 13 is working, the fuel pump 13 absorbs the fuel at the bottom of the fuel storage barrel 12, pressurizes the fuel, and injects the fuel into the first end connected to the three-way valve 19 through the output end of the fuel pump 13, so that the fuel It can be transmitted to the oil pump outlet 18 through the oil supply line 23 connected to the second end of the three-way valve 19, and to the check valve 20 through the oil supply line 23 connected to the third end of the three-way valve 19. , use the one-way valve 20 to ensure the oil pressure balance of the oil supply pipeline 23, and then transmit it to the ejection pump 171 from the one-way valve 20, and then flow to the bottom of the oil storage barrel 12 through the ejection pump 171 to ensure that the oil storage barrel 12 the fuel circulation flow.

As an example, the fuel pump 13 may be a vane fuel pump 13 , that is, the vane fuel pump 13 includes a magnet 131 and a vane runner 132 arranged inside the magnet 131 . The purpose of pumping oil is achieved by the rotation of the vane runner 132 .

As an example, the fuel tank further includes a flange 21 disposed on the fuel tank housing 11 , and the flange 21 is used for fixing the fuel pump 13 . The fuel tank also includes an exhaust valve 22 provided on the fuel tank housing 11 for exhausting the fuel when the pressure in the fuel tank is too high.

As an example, as shown in FIGS. 1 and 2 , the input end of the auxiliary pump 172 is connected to the output end of the oil suction line 16 and the output end of the fuel pump 13 of the oil suction line 16 , and the output end of the auxiliary pump 172 is connected to the oil storage The bottoms of the barrels 12 are oppositely arranged.

As an example, when the auxiliary pump 172 is provided in the fuel tank, the input end of the auxiliary pump 172 is connected to the output end of the oil suction line 16 and the output end of the fuel pump 13 of the oil suction line 16, and the output end of the auxiliary pump 172 is connected to The bottom of the oil storage barrel 12 is arranged opposite to each other, and the fuel oil absorbed by the floating oil suction assembly 15 and the fuel oil output by the fuel pump 13 can be transferred back to the bottom of the oil storage barrel 12 through the auxiliary pump 172 to ensure the fuel oil circulation in the oil storage barrel 12 flow.

In one embodiment, the positioning connector 14 is a plastic connector.

As an example, a plastic connector is used to connect the bottom of the fuel tank housing 11 with the low-lying position on the top of the fuel tank housing 11 , so that the overall weight of the positioning connector 14 is light and the cost is low. Chemical reaction with fuel can guarantee its service life.

In one embodiment, the oil suction line 16 is a corrugated line.

As an example, a corrugated pipe is used to connect the floating oil suction assembly 15 and the oil suction pump 17, and the corrugated pipe can be used to have better extensibility.

In one embodiment, an automobile is provided that includes the fuel tank of the above-described embodiments. A positioning connector 14 is provided between the bottom of the fuel tank housing 11 and the low-lying position on the top of the fuel tank housing 11 , the floating oil suction assembly 15 is sleeved on the positioning connector 14 , and the floating oil suction assembly 15 can float on the fuel tank housing 11 the upper surface of the fuel oil, so that the floating oil suction assembly 15 is connected to the oil suction pump 17 arranged on the oil storage barrel 12 through the oil suction line 16. When the fuel in the fuel tank shell 11 shakes, the floating oil suction assembly 15 can be connected to the fuel tank shell first. The low-lying position on the top of the body 11 is in contact, to a certain extent, the kinetic energy and pressure of the impact of the fuel on the low-lying position on the top of the fuel tank housing 11 are slowed down. The kinetic energy and pressure of the impact of the fuel on the low-lying position of the top of the fuel tank housing 11 can solve the problem of fuel sloshing noise, and ensure that the fuel storage tank 12 is filled with fuel and the fuel pump 13 in the fuel storage tank 12 can work normally. Understandably, since the floating oil suction assembly 15 can float on the fuel upper surface of the fuel tank housing 11 , the cost and weight of the fuel tank can be effectively saved compared to the traditional structural design that uses a wave breaker to reduce fuel sloshing. Using the structural design of the positioning connector 14 , the floating oil suction assembly 15 and the oil suction pump 17 inside the fuel tank housing 11 , it is not necessary to perform subsequent simulation analysis to calculate the fuel sloshing noise, which saves simulation analysis and calculation resources, and can be shifted for different models. High performance, greatly reducing development costs.

In this example, the vehicle further includes an engine and a carbon canister, and the fuel tank further includes an oil pump outlet 18 , a flange 21 and an exhaust valve 22 arranged on the fuel tank housing 11 , and a connecting tee arranged in the fuel tank housing 11 . Valve 19 and one-way valve 20; the first end of the three-way valve 19 is connected to the output end of the fuel pump 13, the second end of the three-way valve 19 is connected to the fuel pump outlet 18, and the third end of the three-way valve 19 is connected It is connected with the first end of the check valve 20, and the second end of the check valve 20 is connected with the ejector pump 171; the oil pump outlet 18 is connected with the engine, and is used to transmit the fuel output from the fuel pump 13 through the oil pump outlet 18 to the engine, To make the engine work; the exhaust valve 22 is connected to the carbon canister. The fuel tank further includes a flange 21 arranged on the fuel tank housing 11 , and the flange 21 is used for fixing the fuel pump 13 . The fuel tank also includes an exhaust valve 22 arranged on the fuel tank housing 11 for exhausting through the carbon canister when the pressure in the fuel tank is too high.

The above-mentioned embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it is still possible to implement the foregoing implementations. The technical solutions described in the examples are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the within the protection scope of the present invention.

Claims (10)

1. A fuel tank comprising a fuel tank housing, an oil storage barrel arranged in the fuel tank housing and a fuel pump arranged on the oil storage barrel, wherein the fuel tank further comprises a positioning connector, a floating oil suction assembly, an oil suction pipeline and an oil suction pump; one end of the positioning connector is connected with the bottom of the oil tank shell, and the other end is connected with the low-lying position on the top of the oil tank shell; the floating oil suction assembly is sleeved with The positioning connecting piece floats on the upper surface of the fuel oil of the fuel tank housing; one end of the oil suction pipeline is connected with the floating oil suction assembly, and the other end is connected with the oil suction pump; the oil suction pump is arranged on the on the oil storage drum. 2 . The fuel tank according to claim 1 , wherein the floating oil suction assembly comprises a floating member and an oil suction box sleeved on the positioning connecting member, and the bottom of the floating member is connected to the bottom of the oil suction box. 3 . The top is fixedly connected, and the oil suction box is connected with the oil suction pipeline. 3. The fuel tank according to claim 2, wherein the oil suction box comprises an oil box housing and an oil pipe joint; the bottom of the oil box casing is provided with an oil suction hole with a downward opening; the oil pipe joint It is arranged on the outside of the oil box housing and is connected with the oil suction pipeline. 4. The fuel tank of claim 2, wherein the floating member is a foam member. 5 . The fuel tank of claim 1 , wherein the oil suction pump comprises an ejection pump, and the ejection pump is arranged at the fuel inlet position of the oil storage drum. 6 . 6. The fuel tank according to claim 5, wherein the oil suction pump comprises an ejector pump and an auxiliary pump, the ejection pump is arranged at the fuel inlet position of the oil storage drum, and the auxiliary pump is connected to The fuel pump is connected. 7. The fuel tank according to claim 6, wherein the input end of the auxiliary pump is connected to the output end of the oil suction line and the output end of the fuel pump of the oil suction line, and the The output end of the auxiliary pump is arranged opposite to the bottom of the oil storage barrel. 8. The fuel tank according to any one of claims 5-7, wherein the fuel tank further comprises an oil pump outlet provided on the fuel tank housing and a connecting tee provided in the fuel tank housing valve and one-way valve; the first end of the connecting three-way valve is connected to the output end of the fuel pump, the second end of the connecting three-way valve is connected to the oil pump outlet, and the third connecting three-way valve is connected to the output end of the fuel pump. The three ends are connected to the first end of the one-way valve, and the second end of the one-way valve is connected to the ejection pump. 9 . The fuel tank of claim 1 , wherein the oil suction pipeline is a corrugated pipeline. 10 . 10. An automobile, characterized by comprising the fuel tank of any one of claims 1-9.

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