Cover for locomotive fuel tank

Abstract

The application provides a cover plate of a locomotive fuel storage tank and a fuel cell assembly for a locomotive, wherein the cover plate comprises a plate body, a side beam assembly and a cross beam assembly. The plate body has two opposite planes and four side surfaces surrounding and connecting the two planes. The side beam assembly is sealingly connected to two opposite side surfaces of the four side surfaces. The cross beam assembly is sealingly connected to the other two opposite side surfaces of the four side surfaces. The plate body, the side beam assembly and the cross beam assembly are all made of light alloy materials by extrusion forming, and the cover plate is sealingly arranged on the fuel storage tank. The cover plate of the application is made of light profile extrusion forming, which avoids the problems of more welds, larger thickness, heavier weight and poor sealing performance caused by the traditional steel beam and skin for making the cover plate.

Description

Technical Field

[0001] This application relates to the field of fuel cell locomotives, and in particular to a cover plate for a fuel storage tank of a fuel cell locomotive. Background Technology

[0002] High-power fuel cell hybrid locomotives are crucial equipment in the rail transit sector. The fuel cells used in these locomotives primarily include methanol fuel cells, hydrogen fuel cells, and natural gas fuel cells. Currently, hydrogen fuel cells are the most commonly used in locomotives. A typical locomotive includes a fuel tank with a cover, on which the fuel cell is mounted. Because the fuel tank stores a large number of fuel cylinders, the cover design must consider the potential for fuel leaks to accumulate at higher locations. Furthermore, the cover needs to accommodate the fuel cell, requiring it to be sufficiently strong. Locomotive design is constrained by overall installation space and effective weight, necessitating a thin and lightweight cover.

[0003] The current cover plate is formed by welding steel beams and skin together. This type of cover plate involves welding the steel beam frame first, followed by welding the skin, resulting in numerous welds. This makes it easy for fuel leaks to accumulate in the grid structure formed by the steel beams. Furthermore, the numerous welds in this type of cover plate result in lower overall structural strength, which is detrimental to the reliability and stability of fuel cells installed on it. In addition, this type of cover plate is thick and heavy, occupying a significant amount of installation space and adding to the effective weight of the locomotive. Summary of the Invention

[0004] The main objective of this application is to provide a cover for a locomotive fuel tank that is high in strength, lightweight, thin, and has good sealing properties, thus preventing fuel leakage and accumulation at high locations.

[0005] To achieve the above objectives, this application adopts the following technical solution:

[0006] According to one aspect of this application, a cover for a locomotive fuel tank is provided, comprising a plate body, side beam assemblies, and crossbeam assemblies. The plate body has two opposing planes and four side surfaces surrounding and connecting the two said planes. The side beam assemblies are sealingly connected to two of the four opposing side surfaces. The crossbeam assemblies are sealingly connected to the remaining two opposing side surfaces. The plate body, the side beam assemblies, and the crossbeam assemblies are all manufactured by extrusion molding from a lightweight alloy material, and the cover is sealingly disposed over the fuel tank.

[0007] According to one embodiment of this application, the plate, the side beam assembly, and the crossbeam assembly are all made of aluminum alloy profiles, and the side beam assembly and the crossbeam assembly are welded to the plate.

[0008] According to one embodiment of this application, the side beam assembly and the crossbeam assembly have an annular sealing strip on the side facing the fuel storage tank.

[0009] According to one embodiment of this application, the side beam assembly and the cross beam assembly have a plurality of spaced mounting grooves on the side surface of the side surface facing away from the plate, the mounting grooves are provided with mounting members, and the mounting members fasten the cover plate to the fuel storage tank.

[0010] According to one embodiment of this application, a lifting seat is provided on the side of the side surface of the side beam assembly facing away from the plate.

[0011] According to one embodiment of this application, the side beam assembly includes two side beams, and at least two mounting supports are provided on the side of the side beams facing away from the fuel storage tank, with the two mounting supports spaced apart.

[0012] According to one embodiment of this application, a positioning pin is provided on the mounting bracket, and a fuel cell is disposed on the side of the cover plate facing away from the fuel storage tank, and the positioning pin is used to position the fuel cell.

[0013] According to one embodiment of this application, the plate, the side beam assembly, and the crossbeam assembly are all hollow structures.

[0014] According to one embodiment of this application, a grounding seat is provided on a plane of the plate facing away from the fuel storage tank and on the side surface of the side beam assembly facing away from the plate.

[0015] According to one embodiment of this application, the plate is provided with an escape hole and a sealing assembly, the escape hole penetrates two planes, the sealing assembly seals the pipeline, and the pipeline extends from the fuel storage tank out of the cover plate.

[0016] According to another aspect of this application, this application also provides a fuel cell assembly for a locomotive, the assembly including a fuel tank, a cover plate and a fuel cell, wherein the cover plate is sealed over the fuel tank and the fuel cell is mounted on the side of the cover plate facing away from the fuel tank, wherein the cover plate is the aforementioned type of cover plate.

[0017] As can be seen from the above technical solution, the advantages and positive effects of the cover plate for the locomotive fuel tank proposed in this application are as follows:

[0018] The cover plate for the locomotive fuel tank proposed in this application is made of lightweight alloy material through extrusion molding. The side beam assembly and crossbeam assembly are also made of lightweight material through extrusion molding. The side beam assembly and crossbeam assembly are then sealed and connected to the cover plate to form the cover plate. This avoids the problem of numerous welds and the tendency for fuel leakage to accumulate at high points, which is common with traditional cover plates formed by steel beams and skin. The cover plate is entirely made of lightweight alloy material through extrusion molding, allowing the cover plate, side beam assembly, and crossbeam assembly to be directly machined as a whole and then sealed and connected. Compared to the traditional cover plate produced by first machining the steel beam frame and then machining the skin, the cover plate of this application has higher overall strength, lighter weight, thinner profile, and better sealing performance. Attached Figure Description

[0019] The various objectives, features, and advantages of this application will become more apparent from the following detailed description of preferred embodiments in conjunction with the accompanying drawings. The drawings are merely illustrative illustrations of this application and are not necessarily drawn to scale. In the drawings, the same reference numerals always denote the same or similar parts. Wherein:

[0020] Figure 1 This is a schematic diagram of the cover plate of the locomotive fuel tank of this application.

[0021] Figure 2 This is a schematic diagram of the cover plate of the locomotive fuel tank of this application from another angle.

[0022] Figure 3 This is a schematic diagram of the locomotive fuel tank of this application.

[0023] Figure 4 This is a partial sectional view of the connection state between the locomotive fuel tank and the cover plate of this application.

[0024] Figure 5 This is a partial view of the connection status of the locomotive fuel tank and cover plate, including the side beams, plates, and sealing strips.

[0025] The annotations in the attached figures are explained as follows:

[0026] 1-The cover plate of the locomotive fuel tank;

[0027] 2- Fuel tank;

[0028] 10-Plate body;

[0029] 11-Side beam assembly;

[0030] 12-Crossbeam assembly;

[0031] 13-Sealing strip;

[0032] 14 - Grounding socket;

[0033] 15-Escape hole;

[0034] 16 - Sealing assembly;

[0035] 21-Box;

[0036] 22-Border;

[0037] 221 - Convex edge;

[0038] 23-Mounting base;

[0039] 24 - Installation components;

[0040] 110, 111 - Edge beams;

[0041] 112, 122 - Mounting slots;

[0042] 113 - Lifting bracket;

[0043] 114, 115 - Installation supports;

[0044] 116 - Positioning pin;

[0045] 120, 121 - Crossbeams. Detailed Implementation

[0046] Typical embodiments embodying the features and advantages of this application will be described in detail in the following description. It should be understood that this application can have various variations in different embodiments, all of which do not depart from the scope of this application, and the descriptions and drawings therein are for illustrative purposes only and not intended to limit this application.

[0047] In the following description of various exemplary embodiments of this application, reference is made to the accompanying drawings, which form part of the invention, and in which different exemplary structures, systems, and steps that can implement various aspects of this application are shown by way of example. It should be understood that other specific solutions to components, structures, exemplary devices, systems, and steps may be used, and structural and functional modifications may be made without departing from the scope of this application. Furthermore, while the terms “upper,” “lower,” “between,” etc., may be used in this specification to describe different exemplary features and elements of this application, these terms are used herein only for convenience, such as the orientation according to the examples shown in the drawings. Nothing in this specification should be construed as requiring a specific three-dimensional orientation of the structure to fall within the scope of this application. In describing the elements / components / etc. described and / or illustrated herein, the terms “first,” “second,” and “third,” etc., are used to indicate the presence of one or more elements / components / etc. The terms “comprising,” “including,” and “having” are used to indicate an open-ended inclusion and mean that additional elements / components / etc. may exist in addition to those listed.

[0048] See Figures 1 to 3The cover plate 1 of the locomotive fuel tank 2 of this application includes a plate body 10, a side beam assembly 11, and a crossbeam assembly 12. The plate body 10 has two opposing planes and four side surfaces surrounding and connecting the two planes. The side beam assembly 11 is sealed to two of the four opposing side surfaces. The crossbeam assembly 12 is sealed to the remaining two of the four opposing side surfaces. The plate body 10, side beam assembly 11, and crossbeam assembly 12 are all made of lightweight alloy material through extrusion molding, and the cover plate 1 is used to seal and cover the fuel tank 2.

[0049] In this application, the cover plate 1 of the locomotive fuel tank 2, the plate body 10, the side beam assembly 11, and the crossbeam assembly 12 are all formed by one-time extrusion molding of lightweight alloy materials. The side beam assembly 11 and the crossbeam assembly 12 are then sealed and connected to the plate body 10 to form the cover plate 1. This avoids the problem of numerous welds in the traditional cover plate formed by steel beams and skin, which easily leads to fuel leakage and accumulation at high points. The cover plate 1 is made of lightweight alloy material by extrusion molding, which can achieve integral manufacturing and processing. Compared with the traditional cover plate produced by first processing the steel beam frame and then processing the skin, the cover plate 1 of this application has higher overall strength, lighter weight, thinner thickness, better sealing performance, and higher precision.

[0050] The lightweight alloys can be made of magnesium alloys, aluminum alloys, titanium alloys, etc.; the fuels can be methanol, hydrogen, or natural gas, etc.

[0051] In this embodiment, the plate 10, the side beam assembly 11 and the crossbeam assembly 12 are all made of aluminum alloy profiles, and the side beam assembly 11 and the crossbeam assembly 12 are welded to the plate 10.

[0052] The plate 10, side beam assembly 11, and crossbeam assembly 12 of this application are all made of extruded aluminum alloy profiles, which are lightweight, high-strength, compact in structure, and have high dimensional accuracy. The overall thickness of the cover plate 1 is relatively small. The side beam assembly 11 and crossbeam assembly 12 are welded to the plate 10 to form the cover plate 1, resulting in fewer weld seams on the cover plate 1 and making it less likely for fuel leaks to accumulate at high points.

[0053] Welding can be performed using methods such as brazing or arc welding. After welding, the weld seam must undergo flaw detection to ensure the sealing performance of cover plate 1 and prevent fuel leakage.

[0054] In this embodiment, the side beam assembly 11 and the crossbeam assembly 12 have an annular sealing strip 13 on the side facing the fuel tank 2. The sealing strip 13 on the side of the cover plate 1 connected to the fuel tank 2 allows the cover plate 1 to seal the fuel tank 2, preventing fuel leakage and ensuring the safety of the locomotive. The annular sealing strip 13 is manufactured using an integral molding process, resulting in a seamless sealing strip 13, improving the sealing effect and enhancing sealing performance.

[0055] The sealing strip 13 can be glued to the side beam assembly 11 and the cross beam assembly 12, or a sealing groove can be extruded during the fabrication of the side beam assembly 11 and the cross beam assembly 12, and the sealing strip 13 can be embedded in the sealing groove. The sealing strip 13 can be made of materials such as rubber, or an appropriate material can be selected according to the actual situation.

[0056] In this embodiment, combined with Figure 4 On the side surface of the side beam assembly 11 and the crossbeam assembly 12 facing away from the plate 10, there are several spaced mounting grooves 112 and 122. Mounting members 24 are installed in the mounting grooves 112 and 122, and the mounting members 24 secure the cover plate 1 to the fuel tank 2. The mounting grooves 112 and 122 on the side surface of the side beam assembly 11 and the crossbeam assembly 12 facing away from the plate 10 are used to install the mounting members 24, ensuring that the mounting members 24 connecting the cover plate 1 and the fuel tank 2 are exposed through the mounting grooves 112 and 122, facilitating the fastening of the connection between the cover plate 1 and the fuel tank 2. Mounting holes are provided on the side of the mounting grooves 112 and 122 facing the fuel tank 2. The mounting members 24 pass through the mounting holes into the mounting grooves 112 and 122, and fastening tools are used to fasten the mounting members 24 through the mounting grooves 112 and 122.

[0057] In this embodiment, a lifting seat 113 is provided on one side of the side surface of the side beam assembly 11 facing away from the plate body 10. The design of the lifting seat 113 allows the cover plate 1 to be lifted by the lifting seat 113 and then installed on the fuel storage tank 2, which helps to improve the correctness and accuracy of the installation position of the cover plate 1, helps to ensure the sealing effect and performance of the cover plate 1, and facilitates the transportation of the cover plate 1.

[0058] In this embodiment, the side beam assembly 11 includes two side beams 110 and 111. At least two mounting supports 114 and 115 are provided on the side of the side beams 110 and 111 facing away from the fuel storage tank 2, and the two mounting supports 114 and 115 are spaced apart. The mounting supports 114 and 115 allow the fuel cell to be installed on the cover plate 1, as well as any other equipment that needs to be installed, ensuring the stability and reliability of the installation. The spaced arrangement of the mounting supports 114 and 115 provides distributed support, avoiding potential interference between the cover plate 1 and the equipment to be installed, and also provides drainage.

[0059] In this embodiment, positioning pins 116 are provided on the mounting supports 114 and 115. The fuel cell is mounted on the side of the cover plate 1 facing away from the fuel storage tank 2, and the positioning pins 116 are used to position the fuel cell. The positioning pins 116 make the installation of the fuel cell on the cover plate 1 more accurate and enable quick docking and installation, which helps to improve installation efficiency and ensure installation effect.

[0060] In this embodiment, the plate 10, the side beam assembly 11, and the crossbeam assembly 12 are all hollow structures. The hollow structure reduces the overall weight of the cover plate 1, and the cover plate 1, made of extruded aluminum alloy profiles, still maintains high strength while having a relatively small thickness. The hollow structure also reduces material usage, lowers costs, and improves economic efficiency.

[0061] In this embodiment, a grounding seat 14 is provided on a plane of the plate 10 facing away from the fuel tank 2 and on the side surface of the side beam assembly 11 facing away from the plate 10. The grounding seat 14 facilitates the grounding of the fuel cell on the cover plate 1. By placing the grounding seat 14 on a plane of the plate 10 facing away from the fuel tank 2 and on the side surface of the side beam assembly 11 facing away from the plate 10, it is convenient for the battery to be grounded and can save space, which is beneficial to saving the overall installation space of the locomotive.

[0062] In this embodiment, the plate 10 is provided with an escape hole 15 and a sealing assembly 16. The escape hole 15 penetrates two planes of the plate 10, and the sealing assembly 16 seals the pipeline that extends from the fuel tank 2 out of the cover plate 1. The escape hole 15 can release the escaped fuel in the fuel tank 2 to the outside in a timely manner, avoiding safety problems caused by the accumulation of escaped fuel in the fuel tank 2, ensuring the safety of battery operation, and thus ensuring the safe and reliable performance of the vehicle. The sealing assembly 16 is used to seal the pipeline that transports the fuel inside the fuel tank 2 to the outside of the fuel cell. It can also seal the electrical wiring connected to the inside and outside of the fuel tank 2, and the sealing configuration can also serve to seal the fuel tank 2.

[0063] The crossbeam assembly 12 also includes two crossbeams 120 and 121. The material outlet 15 and the sealing assembly 16 are both located on the plate 10 near the crossbeam 121, or they can be located on the plate 10 near the crossbeam 120, or they can be located on the plate 10 respectively.

[0064] See Figure 3 , Figure 3 A schematic diagram of the locomotive fuel tank 2 is shown. The locomotive fuel tank 2 includes a tank body 21 with an opening. A frame 22 is provided around the edge of the opening. A cover plate 1 is connected to the frame 22 to seal the cavity of the tank body 21. High-pressure hydrogen cylinders, or fuel devices such as methanol tanks or natural gas tanks, can be placed inside the tank body 21. An annular protrusion 221 is provided around the inner side of the cavity of the tank body 21, and mounting seats 23 are spaced apart on the periphery of the annular protrusion 221. The positions of the mounting seats 23 correspond to the positions of the mounting grooves 112.

[0065] See Figure 4 , Figure 4The diagram shows the connection state between the locomotive fuel tank 2 and the side beam 110 of the cover plate 1. The sealing strip 13 of the cover plate 1 is pressed against the annular protruding edge 221 of the locomotive fuel tank 2 to form a seal. The mounting seat 23 on the frame 22 is provided with a mounting member 24. As can be seen from the figure, the mounting member 24 passes through the mounting hole of the mounting groove 112 to fix the side beam 110 to the frame 22, thereby fixing the cover plate 1 to the fuel tank 2. Figure 4 Only a portion is shown; the installation of side beam 111 is actually similar, as are the installation of cross beams 120 and 121, which will not be elaborated here.

[0066] Figure 5 The diagram illustrates the connection status of the locomotive fuel tank 2 with the side beam 111, plate 10, and sealing strip 13 of the cover plate 1. A mounting bracket 24 is provided on the mounting seat 23 on the frame 22 of the fuel tank 2, and a sealing strip 13 is provided on the annular protruding edge 221 of the frame 22 of the fuel tank 2 (in fact, the sealing strip 13 is sealed and fixed together with the crossbeam assembly 12 and the side beam assembly 11). Figure 5 To more clearly show the sealing strip 13, the crossbeams 120 and 121 of the crossbeam assembly 12 are removed, and the side beam 111 is moved away from the sealing strip 13. The plate 10 is mainly set on the top of the fuel storage tank 2 through the side beam assembly 11 and the crossbeam assembly 12. Figure 5 Only a portion is shown; the installation of the side beam 110 is actually similar, as are the installation of the cross beams 120 and 121, which will not be elaborated here.

[0067] Figure 4 and Figure 5 As can be seen in the figure, plate 10 and side beams 110 and 111 are hollow structures with multiple ribs forming a grid structure inside. Beams 120 and 121 have a similar structure to plate 10 or side beams 110 and 111, but are not shown in the figure.

[0068] like Figures 1 to 5 As shown, this application also provides a fuel cell assembly for a locomotive. The assembly includes a fuel tank 2, a cover plate 1, and a fuel cell (not shown in the figure). The cover plate 1 is sealed over the fuel tank 2, and the fuel cell is installed on the side of the cover plate 1 facing away from the fuel tank 2. The cover plate 1 is the same as described above.

[0069] The fuel cell assembly for locomotives proposed in this application uses a cover plate 1 made of lightweight alloy profiles. This avoids the problem of numerous welds in traditional cover plates made of steel beams and skins, which can easily lead to fuel leakage and accumulation at high points. The cover plate made of lightweight alloy profiles has high overall strength, light weight, thinness, and good sealing performance. On the one hand, it can seal the fuel storage tank, and on the other hand, it can provide a stable and reliable mounting base for the fuel cell. Furthermore, its overall thickness and light weight meet the locomotive's effective weight requirements and installation space requirements.

[0070] The above is a detailed description of several exemplary embodiments of the cover plate 1 of the locomotive fuel tank 2 proposed in this application. The following will describe in detail the usage process of the cover plate 1 of the locomotive fuel tank 2 proposed in this application.

[0071] Combined with appendix Figures 1 to 5 The manufacturing and use process of the cover plate 1 of the locomotive fuel tank 2 proposed in this application is as follows:

[0072] In the first implementation method:

[0073] First, aluminum alloy profiles are extruded in one step to form two side beams 110 and 111, two crossbeams 120 and 121, and a plate 10. The formed side beams 110 and 111 are hollow structures with multiple internal ribs, and their outer surfaces are complete and flat. Similarly, the formed crossbeams 120 and 121 are also hollow structures with multiple internal ribs, and their outer surfaces are complete and flat. Finally, the formed plate 10 is a hollow structure with multiple internal ribs, and its outer surface is complete and flat.

[0074] Then, the side beams 110 and 111 and the crossbeams 120 and 121 are welded to the four side surfaces of the plate 10, respectively. The welds are then inspected to ensure weld quality. Sealing strips 13 are attached to the positions of the side beams 110 and 111 and the crossbeams 120 and 121 corresponding to the annular protrusions 221 of the frame 22 of the fuel tank 2. The cover plate 1 is placed on top of the fuel tank 2 using the lifting seat 113. The sealing strips 13 are pressed against the annular protrusions 221 to form a seal. The sealing assembly 16 seals the fuel transmission pipeline and electrical circuit from the fuel tank 2 to the top of the cover plate 1. The mounting member 24 is passed through the mounting holes and exposed in the mounting grooves 112 and 122. The mounting member 24 is then tightened by external force to achieve a sealed installation between the cover plate 1 and the fuel tank 2.

[0075] Then, the fuel cell is positioned on the top of the cover plate 1 by the positioning pin 116 of the mounting bracket 114, and fixed by the mounting brackets 114 and 115.

[0076] In the second implementation method:

[0077] First, two side beams 110 and 111, two crossbeams 120 and 121, and a plate 10 are formed by one-time extrusion of aluminum alloy profiles. The formed side beams 110 and 111 are hollow structures with multiple internal ribs, and their outer surfaces are complete and have a sealing groove. Similarly, the formed crossbeams 120 and 121 are hollow structures with multiple internal ribs, and their outer surfaces are complete and have a sealing groove. The formed plate 10 is also hollow structures with multiple internal ribs, and its outer surface is complete and flat. The sealing groove is positioned corresponding to the annular protrusion 221 of the frame 22 of the fuel storage tank 2.

[0078] Then, the side beams 110 and 111 and the crossbeams 120 and 121 are welded to the four side surfaces of the plate 10, respectively. At this time, the sealing grooves of the side beams 110 and 111 and the crossbeams 120 and 121 are connected to form an annular sealing groove. The weld is then inspected to ensure the quality of the weld. The sealing strip 13 is pasted and embedded into this annular sealing groove. The cover plate 1 is placed on top of the fuel tank 2 using the lifting seat 113. The sealing strip 13 is pressed against the annular protrusion 221 to form a seal. The sealing assembly 16 seals the fuel transmission pipeline and circuit from the fuel tank 2 to the top of the cover plate 1. The mounting part 24 is exposed through the mounting hole into the mounting grooves 112 and 122. The mounting part 24 is fastened by external force to achieve a sealed installation of the cover plate 1 and the fuel tank 2.

[0079] Then, the fuel cell is positioned on the top of the cover plate 1 by the positioning pin 116 of the mounting bracket 114, and fixed by the mounting brackets 114 and 115.

[0080] As can be seen from the above manufacturing and usage process of the cover plate 1 of the locomotive fuel tank 2, the cover plate 1 of the locomotive fuel tank 2 of this application avoids the problem of numerous welds in the traditional cover plate formed by steel beams and skin, which easily leads to hydrogen leakage and accumulation at high points. The cover plate 1 is made of lightweight alloy material through extrusion molding, which allows the plate body 10, side beam assembly 11 and cross beam assembly 12 to be directly machined as a whole and then sealed and connected. Compared with the traditional cover plate produced by first machining the steel beam frame and then machining the skin, the cover plate of this application has higher overall strength, lighter weight, thinner thickness and better sealing performance. The cover plate of this application uses lightweight alloy extruded profiles, which can realize the overall manufacturing and machining of the cover plate, greatly simplifying the processing technology, reducing processing time and improving production efficiency. The use of lightweight alloy extruded profiles can also improve the overall dimensional accuracy of the cover plate, thereby improving the installation accuracy of the cover plate.

[0081] In summary, the cover plate 1 of the locomotive fuel tank 2 proposed in this application includes a plate body 10, a side beam assembly 11, and a crossbeam assembly 12. The plate body 10 has two opposing planes and four side surfaces surrounding and connecting the two planes. The side beam assembly 11 is sealed to two of the four opposing side surfaces. The crossbeam assembly 12 is sealed to the other two of the four opposing side surfaces. The plate body 10, side beam assembly 11, and crossbeam assembly 12 are all manufactured using lightweight alloy materials through extrusion molding, avoiding the problems of numerous welds and potential hydrogen leakage and accumulation at high points that occur with traditional cover plates formed from steel beams and skin. The cover plate is sealed and installed over the hydrogen storage tank. Compared to traditional cover plates produced by first machining the steel beam frame and then machining the skin, the cover plate of this application is lighter in weight, thinner, has better sealing performance, and higher strength.

[0082] The fuel cell assembly for locomotives provided in this application uses a cover plate 1 made of lightweight alloy profiles. This avoids the problem of numerous welds in traditional cover plates made of steel beams and skins, which can easily lead to fuel leakage and accumulation at high points. The cover plate made of lightweight alloy profiles has high overall strength, light weight, thinness, and good sealing performance. On the one hand, it can seal the fuel storage tank, and on the other hand, it can provide a stable and reliable mounting base for the fuel cell. Furthermore, its overall thickness and light weight meet the design requirements of locomotives.

[0083] In the above exemplary embodiments, the cover plate for the locomotive fuel tank proposed in this application is illustrated using an application to a rail locomotive as an example. Those skilled in the art will readily understand that various modifications, additions, substitutions, deletions, or other changes may be made to the specific embodiments to apply the relevant designs of this application to other types of locomotives, and these changes are still within the scope of the principle of the cover plate for the locomotive fuel tank proposed in this application.

[0084] It should be noted that the cover of the locomotive fuel tank shown in the accompanying drawings and described in this specification are merely a few examples among many locomotive fuel tank covers capable of employing the principles of this application. It should be clearly understood that the principles of this application are by no means limited to any detail or component of the locomotive fuel tank cover shown in the accompanying drawings or described in this specification.

[0085] The foregoing has described and / or illustrated exemplary embodiments of the cover plate for a locomotive fuel tank according to this application. However, the embodiments of this application are not limited to the specific embodiments described herein; rather, components and / or steps of each embodiment may be used independently and separately from other components and / or steps described herein. Each component and / or step of one embodiment may also be used in combination with other components and / or steps of other embodiments. In describing the elements / components / etc. described and / or illustrated herein, the terms "a," "an," and "the above" are used to indicate the presence of one or more elements / components / etc.

[0086] The embodiments of this application are not limited to the specific embodiments described herein. Rather, components of each embodiment can be used independently and separately from other components described herein. Each component of one embodiment can also be used in combination with other components of other embodiments. In the description of this specification, the terms "one embodiment," "some embodiments," "other embodiments," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the application embodiments. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0087] Although this application has been described with respect to different specific embodiments, those skilled in the art will recognize that modifications may be made to the implementation of this application within the spirit and scope of the claims.

Claims

1. A cover plate for a locomotive fuel tank, characterized in that, include: The plate has two opposing planes and four side surfaces surrounding and connecting the two planes; The side beam assembly is sealed to two of the four side surfaces facing away from each other; The beam assembly is sealed to two additional opposing side surfaces of the four side surfaces; The plate, the side beam assembly, and the cross beam assembly are all made of lightweight alloy materials through extrusion molding. The cover plate is sealed and installed over the fuel storage tank; The side beam assembly includes two side beams, and at least two mounting supports are provided on the side of the side beams facing away from the fuel storage tank, with the two mounting supports spaced apart. The mounting bracket is provided with a positioning pin, and the fuel cell is disposed on the side of the cover plate facing away from the fuel storage tank. The positioning pin positions the fuel cell. The side beam assembly and the cross beam assembly have a plurality of spaced mounting grooves on the side surface opposite to the plate body. The mounting grooves are provided with mounting members, which fasten the cover plate to the fuel storage tank. The plate is provided with an escape hole and a sealing assembly. The escape hole passes through two planes, and the sealing assembly seals the pipeline. The pipeline passes through the cover plate from the fuel storage tank.

2. The cover plate of the locomotive fuel tank as described in claim 1, characterized in that, The plate, the side beam assembly, and the crossbeam assembly are all made of aluminum alloy profiles, and the side beam assembly and the crossbeam assembly are welded to the plate.

3. The cover plate of the locomotive fuel tank as described in claim 1, characterized in that, The side beam assembly and the crossbeam assembly facing the fuel tank have an annular sealing strip.

4. The cover plate of the locomotive fuel tank as described in claim 1, characterized in that, A lifting seat is provided on the side of the side beam assembly facing away from the side surface of the plate.

5. The cover plate for the locomotive fuel tank as described in claim 1, characterized in that, The plate, the side beam assembly, and the crossbeam assembly are all hollow structures.

6. The cover plate of the locomotive fuel tank as described in any one of claims 1-5, characterized in that, Grounding bases are provided on a plane of the plate facing away from the fuel storage tank and on the side surface of the side beam assembly facing away from the plate.

7. A fuel cell assembly for locomotives, characterized in that, The device includes a fuel tank, a cover plate, and a fuel cell, wherein the cover plate is sealed over the fuel tank, and the fuel cell is mounted on the side of the cover plate opposite to the fuel tank, wherein the cover plate is the cover plate as described in any one of claims 1-6.

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