CN109367387B

CN109367387B - Fuel tank

Info

Publication number: CN109367387B
Application number: CN201811606655.8A
Authority: CN
Inventors: 陈冲; 苏茂辉; 蔡文远
Original assignee: Zhejiang Geely Holding Group Co Ltd; Geely Sichuan Commercial Vehicle Co Ltd; Zhejiang Geely New Energy Commercial Vehicle Co Ltd
Current assignee: Tianjin Alcohol Hydrogen Research And Development Co ltd; Zhejiang Geely Holding Group Co Ltd; Zhejiang Geely New Energy Commercial Vehicle Group Co Ltd; Geely Sichuan Commercial Vehicle Co Ltd; Zhejiang Geely Remote New Energy Commercial Vehicle Group Co Ltd
Priority date: 2018-12-26
Filing date: 2018-12-26
Publication date: 2020-12-08
Anticipated expiration: 2038-12-26
Also published as: CN109367387A

Abstract

The invention provides a fuel tank, which relates to the technical field of vehicles and comprises a tank body and a first bracket, wherein a transverse cavity is arranged on the tank body, at least one end of the transverse cavity is open, and the first bracket can be inserted into the transverse cavity and is detachably and fixedly connected with the tank body; the first bracket is capable of being fixed to a corresponding vehicle body, and mounts the fuel tank to the vehicle body. The fuel tank solves the problem that the volume of the fuel tank of the prior methanol commercial vehicle is larger, and the fuel tank is filled with empty fuel or with residual less methanol fuel, which takes longer time.

Description

Fuel tank

Technical Field

The invention relates to the technical field of vehicles, in particular to a fuel tank.

Background

In recent years, domestic new energy automobiles are well developed based on the requirements of relieving energy crisis, improving atmospheric environment, promoting sustainable development of economic health in China and the like. The application of the methanol fuel on the commercial vehicle is greatly improved, and the practical application shows that the application of the methanol fuel on the commercial vehicle can greatly improve the emission of particulate matters of the heavy commercial vehicle, thereby being beneficial to the improvement of the atmospheric environment.

In the prior art, an automobile using methanol as a main fuel is called a methanol automobile, and a commercial vehicle using methanol as a main fuel is called a methanol commercial vehicle. The volume of the fuel tank of a methanol commercial vehicle is generally large, so that it takes a long time to fill the fuel tank with empty fuel or with less methanol fuel left, and a user has to spend a lot of time waiting for the fuel tank to fill, and the experience is poor.

Therefore, it is very necessary to design a new fuel tank to improve the above problems.

Disclosure of Invention

The invention aims to provide a fuel tank, which solves the technical problem that the volume of the fuel tank of a methanol commercial vehicle is relatively large, and the filling of the fuel tank by empty fuel or residual methanol fuel takes a long time.

The fuel tank provided by the invention comprises a tank body and a first bracket, wherein a transverse cavity is arranged on the tank body, at least one end of the transverse cavity is open, and the first bracket can be inserted into the transverse cavity and is detachably and fixedly connected with the tank body; the first bracket is capable of being fixedly connected to a corresponding vehicle body, and the fuel tank is mounted on the vehicle body.

Further, a plurality of said first brackets are included; the cross section of the box body is square, the transverse cavities are arranged on the box body at intervals in parallel, and the corresponding open ends of the transverse cavities are positioned on the same side wall of the box body;

the first brackets correspond to the transverse cavities one to one.

Further, the number of the first brackets is two; the cross section of the box body is square, two transverse cavities are arranged on the box body at intervals and side by side, and the extending directions of the two transverse cavities are parallel to the width direction of the box body;

the first brackets correspond to the transverse cavities one to one.

Further, the box body is further provided with a threaded flange, the transverse cavity penetrates through the box body along the length direction of the transverse cavity, and the first bracket penetrates through the transverse cavity and is in threaded connection with the threaded flange.

Furthermore, the box body further comprises a locking piece which is fixedly sleeved on the bracket and is positioned on one side, deviating from the box body, of the threaded flange and tightly abutted against the threaded flange.

Furthermore, the first bracket is of an L-shaped structure and comprises a first part and a second part which form an angle with each other and are fixedly connected, the first part is used for being connected with the vehicle body, and the second part can be inserted into the transverse cavity.

Furthermore, a transition bushing is fixedly arranged in the transverse cavity, and the first bracket can be inserted into the corresponding transition bushing.

The vehicle body is characterized by further comprising two second brackets, wherein the second brackets can be fixedly connected with the corresponding vehicle body;

the cross section of the box body is square, two ends of the box body in the length direction are respectively provided with a first groove corresponding to the second bracket, and the second bracket can be clamped into the corresponding groove; or, both ends in the width direction of the box body are provided with second grooves corresponding to the second brackets, and the second brackets can be clamped into the corresponding second grooves.

Furthermore, a breather valve is arranged at the top of the box body and can be communicated with a carbon tank on the vehicle body; and/or a manual oil drain valve is arranged at the bottom of the box body.

Further, the box body is a box body resistant to methanol corrosion.

Compared with the prior art, the fuel tank provided by the invention has the beneficial effects that:

the fuel tank provided by the invention comprises a tank body and a first bracket, wherein the tank body is provided with a transverse cavity with at least one open end, and the first bracket can be inserted into the transverse cavity and is detachably and fixedly connected with the tank body; the first bracket is capable of being fixed to a corresponding vehicle body, and mounts the fuel tank to the vehicle body.

When the fuel tank provided by the invention is used on a methanol commercial vehicle, the tank body of the fuel tank is fixedly arranged at a corresponding position of a vehicle body through the first bracket (the first bracket is fixedly arranged at the corresponding position of the vehicle body and is inserted into the transverse cavity of the tank body to be detachably and fixedly connected with the tank body). When the fuel in the fuel tank is less left or has run out, the user can go to the fueling station and directly replace the existing fuel tank with a full-fuel tank of the same type. When the fuel tank to be replaced on the vehicle body is detached, the connection between the first bracket and the tank body is only needed to be released, and then the tank body is pulled out from the first bracket, so that the operation is simple and rapid. In a similar way, when the fuel tanks filled with fuel and of the same type are mounted on the vehicle body, the transverse cavity on the box body is aligned to the first bracket and the box body is mounted in place, and then the box body and the first bracket are detachably and fixedly connected. Therefore, when the methanol commercial vehicle uses the fuel tank provided by the invention, when the fuel in the fuel tank is less or is used up, a user directly replaces the fuel tank on the vehicle body with the fuel tank of the same model which is full of fuel, the whole replacement process is simple and quick, and compared with the prior art that the fuel tank is full of empty fuel or full of less residual methanol fuel, a lot of time can be saved, so that the waiting time of the user is reduced, and the user experience is better.

In addition, the fuel tank provided by the invention has a wave-proof function, particularly, the transverse cavity for mounting the first bracket on the tank body divides the inner cavity of the tank body into at least two parts which are communicated with each other, and the side wall of the transverse cavity can reduce the shaking amount of the liquid level in the fuel tank in the driving process of a vehicle, so that not only can excessive steam or bubbles generated in the fuel tank by fuel be avoided, but also the problem that the root parts of an oil suction pipe and a measuring pipe of the liquid level meter are broken due to the fact that the liquid level generates excessive shearing force to the liquid level meter due to the shaking of the fuel in the fuel tank can be avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic view of an overall structure of a fuel tank according to an embodiment of the present invention;

FIG. 2 is a schematic view of the fuel tank of FIG. 1 at another angle;

FIG. 3 is a schematic structural view of a tank body in a fuel tank according to an embodiment of the present invention;

FIG. 4 is an exploded view of a portion of the structure of a fuel tank provided in accordance with an embodiment of the present invention;

FIG. 5 is a schematic structural view of a first bracket in a fuel tank according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a second bracket in a fuel tank according to an embodiment of the present invention.

Icon: 1-a box body; 2-a first carrier; 3-a threaded flange; 4-a locking member; 5-a second bracket; 11-transverse cavity; 12-a first groove; 21-a first section; 22-second portion.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 and 2, the fuel tank provided by the present embodiment includes a tank body 1 and a first bracket 2, wherein a lateral cavity 11 is provided on the tank body 1, at least one end of the lateral cavity 11 is open, and the first bracket 2 can be inserted into the lateral cavity 11 and detachably and fixedly connected to the tank body 1. The first bracket 2 can be fixed to a corresponding vehicle body, and mounts the fuel tank to the vehicle body.

When the fuel tank provided by the embodiment is used on a methanol commercial vehicle, the tank body 1 of the fuel tank is fixedly arranged at a corresponding position of a vehicle body through the first bracket 2 (the first bracket 2 is fixedly arranged at a corresponding position of the vehicle body and is inserted into the transverse cavity 11 of the tank body 1 to be detachably and fixedly connected with the tank body 1). When the fuel in the fuel tank is less left or has run out, the user can go to the fueling station and directly replace the existing fuel tank with a full-fuel tank of the same type. When the fuel tank to be replaced on the vehicle body is detached, the connection between the first bracket 2 and the box body 1 is only needed to be released, and then the box body 1 is pulled out from the first bracket 2, so that the operation is simple and rapid. In a similar way, when the fuel tanks filled with fuel and of the same type are mounted on the vehicle body, the transverse cavity 11 on the box body 1 is aligned to the first bracket 2 and the box body 1 is mounted in place, and then the box body 1 and the first bracket 2 are detachably and fixedly connected. Therefore, when the fuel tank provided by the embodiment is used for a methanol commercial vehicle, when the fuel tank is less residual or is used up, a user directly goes to a fuel supply station to replace the fuel tank on the vehicle body with the fuel tank of the same type which is full of fuel, the whole replacement process is simple and quick, and compared with the prior art that the fuel tank is full of empty fuel or full of residual less methanol fuel, a large amount of time can be saved (the time for adding fuel can be shortened by at least half, taking the volume of the fuel tank as 1000L as an example, about 1 hour is needed for filling an empty fuel tank, and the time for directly replacing the fuel tank is about 25 minutes), so that the waiting time of the user is reduced, the vehicle running efficiency is greatly improved, and the user experience is better.

In addition, the fuel tank provided by the invention has a wave-proof function, specifically, the transverse cavity 11 for mounting the first bracket 2 on the tank body 1 divides the inner cavity of the tank body 1 into at least two parts which are communicated with each other, the side wall of the transverse cavity 11 can reduce the shaking amount of the liquid level in the fuel tank during the driving process of a vehicle, and the problem that the liquid level generates excessive steam or bubbles in the fuel tank and generates excessive shearing force to the liquid level meter due to the shaking of the fuel in the fuel tank, so that the root parts of an oil suction pipe and a measuring pipe of the liquid level meter are broken is avoided.

The box body 1 is provided with a transverse cavity 11, specifically, the transverse cavity 11 can penetrate through the box body 1 along the length direction of the transverse cavity, namely two ends of the transverse cavity are open; or only one end of the cover is open.

When 11 both ends of horizontal chamber are uncovered, first bracket 2 insert in horizontal chamber 11 and with the detachable fixed connection of box 1, can be that first bracket 2 wears out horizontal chamber 11, then through the fastener with the removable fixed connection of box 1, for example: a nut or a threaded flange 3 is locked at one end of the first bracket 2 which penetrates out of the transverse cavity 11, so that the first bracket 2 is detachably and fixedly connected with the box body 1.

When one end of the transverse cavity 11 is open, the first bracket 2 is inserted into the transverse cavity 11 and is detachably and fixedly connected with the box body 1, and the first bracket 2 can be clamped with the inner wall of the transverse cavity 11.

In this embodiment, the axis of the transverse cavity 11 may be parallel to the horizontal plane.

Further, when the cross section of the case 1 is square, the axis of the lateral cavity 11 may be parallel to the width direction of the case 1.

In this embodiment, the volume of the fuel tank may be designed according to the set vehicle mileage.

The width direction of the housing 1 in the present embodiment refers to a direction of a side of the housing 1 having a short length in the horizontal plane in a state where the housing 1 is placed horizontally, and the length direction of the housing 1 refers to a direction of a side perpendicular to the width direction in the horizontal plane.

The fuel tank provided by the embodiment can be used for methanol commercial vehicles and other vehicles.

In an alternative solution of the present embodiment, the fuel tank may include a plurality of first brackets 2; the cross section of the box body 1 is square, the transverse cavities 11 are arranged on the box body 1 at intervals in parallel, and the corresponding open ends of the transverse cavities 11 are positioned on the same side wall of the box body 1; the first brackets 2 correspond to the lateral cavities 11 one to one.

A plurality of transverse cavities 11 are arranged on the box body 1 at intervals and side by side, the fuel tank comprises a plurality of first brackets 2, and the fuel tank is arranged on the vehicle body through the plurality of first brackets 2, so that on one hand, the fuel tank is more stably arranged on the vehicle body; on the other hand, a plurality of transverse cavities 11 are arranged on the box body 1 at intervals side by side, the inner cavity of the box body 1 is divided into a plurality of parts communicated with each other by the transverse cavities 11, the side wall of each transverse cavity 11 can reduce the shaking amount of the liquid level in the fuel tank in the driving process of the vehicle, so that the wave-proof effect of the fuel tank is better, steam or bubbles generated in the fuel tank can be further reduced, the shearing force of the fuel on the liquid level meter can be further reduced, and the impact of the fuel on the liquid level meter is relieved.

Specifically, the axes of a plurality of horizontal cavities 11 that are arranged side by side at intervals can be located on the same horizontal plane, and the axes of a plurality of horizontal cavities 11 can all be parallel to the width direction of the box body 1.

In an alternative solution of this embodiment, there may be two first brackets 2. The cross section of the box body 1 can be square, two transverse cavities 11 are arranged on the box body 1 at intervals and side by side as shown in fig. 1-4, and the extending directions of the two transverse cavities 11 are both parallel to the width direction of the box body 1. The first brackets 2 correspond to the lateral cavities 11 one to one.

The cross-sectional shape of the box 1 may be square, that is, the box 1 has a rectangular parallelepiped housing structure or a cubic housing structure. The interval just sets up two horizontal chambeies 11 side by side on box 1, installs box 1 on the automobile body through two first brackets 2 that correspond, can enough guarantee the stability behind the automobile body is installed to the fuel cell, makes the installation and the dismantlement of fuel cell simpler, convenient again.

In an optional technical scheme of the embodiment, the fuel tank may further include a threaded flange 3, the transverse cavity 11 penetrates through the tank body 1 along the length direction of the transverse cavity, and the first bracket 2 penetrates through the transverse cavity 11 and is in threaded connection with the threaded flange 3.

Through the detachable fixed connection of threaded flange 3 with first bracket 2 and box 1, threaded flange 3's terminal surface and box 1 butt, great with box 1's area of contact can reduce the effort to box 1 local in the installation, are favorable to reducing even avoiding box 1's deformation.

In the optional technical scheme of this embodiment, the fuel tank may further include a locking member 4, and the locking member 4 is fixedly sleeved on the bracket and is located on one side of the threaded flange 3, which is far away from the tank body 1, and is tightly abutted to the threaded flange 3.

The locking piece 4 tightly abutted to the threaded flange 3 is arranged on one side, deviating from the box body 1, of the threaded flange 3, and the threaded flange 3 can be limited to move in the axial direction, so that the fuel tank is more firmly mounted on a vehicle body.

Specifically, the locking member 4 may be a shaft locking device or a nut, and may further be a structure of fixing a ring and a jackscrew.

As shown in fig. 5, in an alternative embodiment of the present invention, the first bracket 2 may be an L-shaped structure, and includes a first portion 21 and a second portion 22 fixed at an angle to each other, the first portion 21 is used for connecting with the vehicle body, and the second portion 22 can be inserted into the transverse cavity 11.

Specifically, the first portion 21 may be vertically disposed, and the second portion 22 may be perpendicular to the first portion.

In an alternative solution of this embodiment, a transition bushing may be fixedly disposed in the transverse cavity 11, and the first bracket 2 may be inserted into the corresponding transition bushing.

The first bush can increase the stressed area of the transverse cavity 11, is beneficial to protecting the transverse cavity 11 and prevents the deformation or damage of the transverse cavity 11.

In particular, the transition bushing may be interference fitted with the corresponding transverse cavity 11.

In an alternative solution of this embodiment, the fuel tank may further include two second brackets 5, and the second brackets 5 may be fixedly connected to the corresponding vehicle body. The cross sectional shape of box 1 is square, and its ascending both ends of length direction all are provided with the first recess 12 that corresponds with second bracket 5, and second bracket 5 can block in the first recess that corresponds. Or, both ends of the box body 1 in the width direction are provided with second grooves corresponding to the second brackets 5, and the second brackets 5 can be clamped into the corresponding second grooves.

All set up the first recess 12 that corresponds with second bracket 5 at 1 ascending both ends of length direction of box, second bracket 5 card is gone into in the first recess 12 that corresponds or all sets up the second recess that corresponds with second bracket 5 at 1 ascending both ends of width direction of box, second bracket 5 card is gone into in the second recess that corresponds, through in first bracket 2 supports box 1, adopt second bracket 5 to support box 1 for box 1 is more stable on the automobile body.

Specifically, as shown in fig. 6, the second bracket 5 may also be an L-shaped structure, one side of the second bracket 5 of the L-shaped structure is used for fixedly connecting with the vehicle body, and the other side of the second bracket is used for being clamped with the corresponding first groove 12 or second groove.

In this embodiment, preferably, the fuel tank includes two first brackets 2 and two second brackets 5, two transverse cavities 11 are spaced apart and arranged side by side on the tank body 1, and the extending directions of the two transverse cavities 11 are both parallel to the width direction of the tank body 1. Both ends on the width direction of the box body 1 are provided with second grooves corresponding to the second brackets 5, and the second brackets 5 can be clamped into the corresponding second grooves.

In the optional technical scheme of this embodiment, the top of box 1 can be provided with the breather valve, and the breather valve can communicate with the carbon tank on the automobile body. And/or a manual oil drain valve is arranged at the bottom of the box body 1.

Set up the breather valve at the top of box 1, when methanol vapor reaches certain pressure in the fuel tank, the breather valve is opened, and partial methanol vapor gets into the carbon canister and adsorbs and store, can reduce and avoid methanol vapor to get into the atmospheric environment even, reduces the pollution to the environment. The manual oil drain valve is arranged at the bottom of the box body 1, and can be opened when maintenance and cleaning are needed or the multiple box bodies 1 are connected, so that the fuel tank is more convenient to maintain and clean, and the multiple box bodies 1 are more convenient to connect.

Specifically, the breather valve in this embodiment may be a high flow breather valve.

In an optional technical solution of this embodiment, the tank 1 may be a tank 1 resistant to methanol corrosion.

The box body 1 is a methanol corrosion resistant box body 1, so that on one hand, the service life of the fuel tank provided by the embodiment can be longer when the fuel tank is used for containing methanol fuel; on the other hand, the weight of the case 1 can be reduced by at least about 60% as compared with the case made of iron or aluminum alloy.

In particular, the tank 1 may be a tank 1 made of a multilayer PE material.

In the optional technical scheme of this embodiment, the fuel tank filler pipe and the fuel tank can be provided with the communicating pipe, so that when each vent on the fuel tank is blocked, whether negative pressure exists in the fuel tank can be judged through whether the communicating pipe is sucked or not.

Other constructions of the fuel tank are known from the prior art.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fuel tank is characterized by comprising a tank body (1) and a first bracket (2), wherein a transverse cavity (11) is arranged on the tank body (1), at least one end of the transverse cavity (11) is open, and the first bracket (2) can be inserted into the transverse cavity (11) and is detachably and fixedly connected with the tank body (1); the first bracket (2) can be fixedly connected with a corresponding vehicle body, and the fuel tank is arranged on the vehicle body;

the first bracket (2) is of an L-shaped structure and comprises a first part (21) and a second part (22) which form an angle and are fixedly connected with each other, the first part (21) is used for being connected with the vehicle body, and the second part (22) can be inserted into the transverse cavity (11);

the box body is characterized by further comprising a threaded flange (3), the transverse cavity (11) penetrates through the box body (1) along the length direction of the transverse cavity, and the second portion (22) penetrates through the transverse cavity (11) and is in threaded connection with the threaded flange (3).

2. Fuel tank according to claim 1, characterized by comprising a plurality of said first brackets (2); the cross section of the box body (1) is square, the transverse cavities (11) are arranged on the box body (1) side by side at intervals, and the corresponding open ends of the transverse cavities (11) are positioned on the same side wall of the box body (1);

the first brackets (2) correspond to the transverse cavities (11) one by one.

3. Fuel tank according to claim 1, characterized in that the first brackets (2) are two; the cross section of the box body (1) is square, two transverse cavities (11) are arranged on the box body (1) at intervals side by side, and the extending directions of the two transverse cavities (11) are parallel to the width direction of the box body (1);

the first brackets (2) correspond to the transverse cavities (11) one by one.

4. Fuel tank according to claim 1, characterized in that it further comprises a retaining member (4), said retaining member (4) being secured to said bracket and being located on the side of said threaded flange (3) facing away from said tank (1), in tight abutment with said threaded flange (3).

5. Fuel tank according to any of claims 1 to 4, characterized in that a transition bush is fixed in the transverse cavity (11), the first bracket (2) being insertable in the corresponding transition bush.

6. Fuel tank according to any of claims 1 to 4, characterized in that it further comprises two second brackets (5), said second brackets (5) being solidly connectable to the respective vehicle body;

the cross section of the box body (1) is square, first grooves (12) corresponding to the second brackets (5) are formed in the two ends of the box body in the length direction, and the second brackets (5) can be clamped into the corresponding first grooves; or, both ends of the box body (1) in the width direction are provided with second grooves corresponding to the second brackets (5), and the second brackets (5) can be clamped into the corresponding second grooves.

7. Fuel tank according to any of claims 1 to 4, characterized in that the tank (1) is provided at its top with a breather valve which can communicate with a carbon canister on the vehicle body; and/or a manual oil drain valve is arranged at the bottom of the box body (1).

8. Fuel tank according to any of claims 1 to 4, characterized in that the tank (1) is a methanol corrosion resistant tank (1).