An agricultural tractor tank

Abstract

This utility model discloses a fuel tank for an agricultural tractor, including a tank body. From left to right, an oil level sensor, a suction pipe, a baffle plate, and a return pipe are arranged sequentially within the inner cavity of the tank body. A safety valve is connected to the baffle plate and the suction pipe via a rubber hose. The surface of the baffle plate has four evenly and orderly distributed through holes. This utility model reduces heat exchange between the suction pipe and the return pipe by arranging them together. Furthermore, by setting the return pipe opening at a 45° angle, it effectively prevents the return oil from impacting deposits at the bottom of the tank. The baffle plate inside the tank isolates the suction and return pipes, improving heat dissipation, separating air, and settling impurities. It also prevents the fuel from violently shaking and foaming during tractor operation, thus avoiding excessive pressure inside the tank.

Description

Technical Field

[0001] This utility model belongs to the field of tractor fuel tank technology, and particularly relates to an agricultural tractor fuel tank. Background Technology

[0002] As a fuel storage device for tractors, the fuel tank not only provides the power source for efficient tractor operation but is also a crucial component of the tractor's fuel system. Its structural design affects the overall performance and weight distribution of the tractor. A rational overall layout and optimized structural design can effectively improve the tractor's service life and reliability. Utility Model Content

[0003] The purpose of this utility model is to provide an agricultural tractor fuel tank to solve the technical problems mentioned in the background art.

[0004] To achieve the above objectives, the specific technical solution of this utility model is as follows: an agricultural tractor fuel tank, including a tank body, wherein an oil level sensor, an oil suction pipe, a partition and an oil return pipe are arranged sequentially from left to right in the inner cavity of the tank body, and a safety valve is connected to the tank body between the partition and the oil suction pipe via a rubber hose, and four evenly and orderly distributed through holes are provided on the surface of the partition.

[0005] Preferably, a filler neck is provided on the top left side of the tank body, and a fuel tank cap is provided on the filler neck.

[0006] Preferably, an oil drain port is provided on the bottom left side of the box body.

[0007] Preferably, the top of the box is provided with a vent hole for connection to the rubber hose.

[0008] Preferably, the upper, lower, left, and right sidewalls of the partition are all provided with flat surfaces, the four flat surfaces are connected by inclined surfaces, and the four flat surfaces are welded and fixed to the inner wall of the box.

[0009] Preferably, the through hole has an elliptical structure.

[0010] The agricultural tractor fuel tank of this utility model has the following advantages:

[0011] This invention reduces heat exchange with the return oil by adjusting the arrangement between the suction pipe and the return oil pipe. Furthermore, the 45° angled cut at the return oil pipe opening effectively prevents the return oil from impacting deposits at the bottom of the tank. An internal baffle separates the suction and return oil pipes, improving heat dissipation, separating air, and settling impurities. This also prevents the fuel from sloshing violently during tractor operation, thus avoiding excessive pressure within the tank and significantly optimizing the tank's structural performance and service life. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the partition plate of this utility model.

[0015] The markings in the diagram are as follows: 1. Tank body; 2. Filler neck; 3. Tank cap; 4. Oil level sensor; 5. Suction pipe; 6. Return pipe; 7. Baffle plate; 8. Rubber hose; 9. Safety valve; 10. Drain port; 11. Through hole; 12. Flat surface; 13. Sloping surface. Detailed Implementation

[0016] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0017] In the description of the embodiments of this utility model, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0018] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0019] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0020] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0021] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of an agricultural tractor fuel tank according to this utility model.

[0022] like Figure 1-2 As shown, this utility model discloses an agricultural tractor fuel tank, including a tank body 1. A filler port 2 is provided on the top left side of the tank body 1, and a fuel tank cover 3 is provided on the filler port 2. A drain port 10 is provided on the bottom left side of the tank body 1. From left to right, the inner cavity of the tank body 1 is provided with an oil level sensor 4, a suction pipe 5, a partition 7, and a return pipe 6. A safety valve 9 is connected to the tank body 1 between the partition 7 and the suction pipe 5 via a rubber hose 8. A vent hole connected to the rubber hose 8 is provided at the top of the tank body 1. The surface of the partition 7 is provided with four evenly and orderly distributed through holes 11. The upper, lower, left, and right side walls of the partition 7 are all provided with planes 12. The four planes 12 are connected by inclined planes 13, and the four planes 12 are welded and fixed to the inner wall of the tank body 1. The through holes 11 are elliptical in shape.

[0023] To balance the pressure within the fuel tank and ensure the tractor's performance, the fuel tank should be designed with a pressure relief valve and other venting devices. Currently, the opening pressure of the safety valve on high-power tractors should not exceed 50 kPa. When the pressure inside the fuel tank is 5 kPa higher than the safety valve's opening pressure, the safety valve opens and closes once the pressure inside the fuel tank reaches a safe value. Due to differences in fuel tank size, material, and structure, the opening pressure of the fuel tank safety valve varies. For tractors with engine power ranging from 73.5 kW (100 hp) to 161.8 kW (220 hp), the exhaust pressure of the rotomolded fuel tank safety valve is typically set at (20 ± 0.5) kPa. Tractor safety valves are generally required to open in both directions. Typically, when the pressure is below (1 ± 0.5) kPa, the safety valve opens to allow air in, preventing the fuel tank from collapsing and deforming due to excessively low pressure, which would affect normal operation. In China, the safety valve of a tractor is usually integrated with the fuel tank cap and installed at the fuel filler neck. Alternatively, the safety valve can be installed separately externally, connected to the fuel tank via a hose through a pre-drilled vent hole. The safety valve should be installed at a relatively high position at the rear of the cab.

[0024] The suction and return pipes installed inside the fuel tank's suction and return ports should extend to the lowest point of the fuel level to prevent air suction or splashing during return fuel, which can generate air bubbles. However, they should not touch the bottom of the fuel tank to avoid drawing in impurities. Typically, the gap between the bottom of the pipe and the bottom of the tank should be >25mm. The distance between the suction and return pipes should be >400mm to reduce heat exchange with the return fuel. The return pipe opening should be beveled at 45° to prevent the return fuel from impacting deposits at the bottom of the tank. A baffle plate inside the fuel tank isolates the suction and return pipes, improving heat dissipation, separating air, and settling impurities. This also prevents excessive pressure in the fuel tank caused by violent fuel sloshing during tractor operation, which could lead to foaming.

[0025] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A fuel tank for an agricultural tractor, characterized in that: The equipment includes a housing (1), and the inner cavity of the housing (1) is provided with an oil level sensor (4), an oil suction pipe (5), a partition (7) and an oil return pipe (6) from left to right. A safety valve (9) is connected to the housing (1) between the partition (7) and the oil suction pipe (5) via a rubber tube (8). The surface of the partition (7) is provided with four uniformly and orderly distributed through holes (11).

2. The agricultural tractor fuel tank according to claim 1, characterized in that: A filler neck (2) is provided on the top left side of the housing (1), and a fuel tank cap (3) is provided on the filler neck (2).

3. The agricultural tractor fuel tank according to claim 1, characterized in that: An oil drain port (10) is provided on the bottom left side of the box (1).

4. The agricultural tractor fuel tank according to claim 1, characterized in that: The top of the box (1) is provided with a vent hole that is connected to the rubber tube (8).

5. The agricultural tractor fuel tank according to claim 1, characterized in that: The partition (7) has a plane (12) on its upper, lower, left and right side walls. The four planes (12) are connected by inclined planes (13), and the four planes (12) are welded and fixed to the inner wall of the box (1).

6. The agricultural tractor fuel tank according to claim 1, characterized in that: The through hole (11) has an elliptical structure.

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