Forklift fuel system suitable for severe cold environment

Abstract

The utility model discloses a forklift fuel oil system suitable for a severe cold environment, which comprises a power component, and the power component generates heat during operation; the heating assembly is arranged in the power assembly, and the power assembly and the heating assembly form a circulating water path; the fuel oil filtering assembly is arranged in the power assembly, the heating assembly is arranged on the periphery of the fuel oil filtering assembly, and water flow for cooling the power assembly enters the heating assembly through the water path so as to form a temperature rising area on the periphery of the fuel oil filtering assembly. According to the utility model, the power assembly capable of actively generating heat and the heating assembly form the circulating water path, and the circulating water path can transfer waste heat generated by the power assembly to the fuel oil filtering assembly, so that the temperature of the working environment is improved; therefore, the filtering effect of the fuel filter in a severe cold environment can be improved under the condition of no extra fuel loss, and the output power efficiency of fuel is improved.

Description

Technical Field

[0001] This utility model relates to the field of forklift technology, specifically to a forklift fuel system suitable for extremely cold environments. Background Technology

[0002] Fuel filters are the core components of a forklift's fuel system, primarily responsible for filtering impurities, separating moisture, and protecting the engine's precision components. Under normal operating conditions, their filtration accuracy can reach 5-50μm, effectively intercepting particulate matter such as rust and dust. However, in extremely cold environments, traditional fuel filters suffer from problems such as wax precipitation and blockage, the risk of moisture freezing, and insufficient heating system efficiency.

[0003] Existing fuel filters use active heating devices to heat the fuel filter, but there may be uneven heat conduction, causing some areas of the filter to remain below the fuel cloud point, reducing fuel combustion efficiency. At the same time, the active heating device requires additional energy to maintain, increasing energy loss and reducing fuel output power efficiency. Utility Model Content

[0004] This invention addresses the problem of low fuel output power efficiency caused by active heating of the fuel filter in extremely cold environments by providing a forklift fuel system suitable for such environments. The specific technical solution is as follows:

[0005] A forklift fuel system suitable for cold environments includes: a power unit that generates heat during operation; a heating unit disposed inside the power unit, the power unit and the heating unit forming a circulating water path; and a fuel filter disposed inside the power unit, the heating unit being disposed around the fuel filter, and water cooling the power unit entering the heating unit through the water path to form a heated area around the fuel filter.

[0006] Preferably, the heating assembly includes a spiral metal tube disposed around the fuel filter assembly. The spiral metal tube forms at least one ring around the fuel filter assembly. The axis of the spiral metal tube coincides with the longitudinal centerline of the fuel filter assembly. The spiral metal tube forms part of the circulating water path and is capable of conducting heat from the water path.

[0007] Preferably, the heating component further includes a water inlet pipe, a water inlet connector connected to the water inlet pipe, a spiral metal pipe with one end connected to the water inlet connector, a water outlet connector connected to the other end of the spiral metal pipe, and a water outlet pipe connected to the water outlet connector; the water flow for cooling the power component flows sequentially from the water inlet pipe, the water inlet connector, the spiral metal pipe, the water outlet connector, and the water outlet pipe back into the power component to form a circulating water path.

[0008] Preferably, the power assembly includes: an engine that generates heat during operation; an outlet connected to an inlet pipe and an outlet connected to an outlet pipe, wherein water for cooling the engine flows in from the inlet and out from the outlet to form part of a circulating water path; and a fuel tank for storing fuel, the fuel tank being connected to the engine.

[0009] Preferably, the fuel filter assembly includes: a fuel filter for filtering fuel flowing from the fuel tank into the engine, the fuel filter having an annular portion with a spiral metal tube around its periphery; and a mounting plate disposed on the housing of the fuel tank, the mounting plate being capable of connecting the fuel filter to the fuel tank.

[0010] As can be seen from the above technical solution, this utility model has the following beneficial effects:

[0011] This invention establishes a circulating water path by setting up a power component capable of actively generating heat and a heating component. This circulating water path can transfer the waste heat generated by the power component to the fuel filter component, thereby increasing its operating ambient temperature. This improves the filtration effect of the fuel filter in cold environments without additional fuel loss, and thus improves the output power efficiency of the fuel. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0013] Figure 2 for Figure 1 Enlarged view of the structure at point A in the image;

[0014] Figure 3 for Figure 1 Enlarged view of the structure at point B in the image.

[0015] In the diagram: 1. Power assembly; 11. Engine; 12. Water outlet; 13. Water inlet; 14. Fuel tank; 2. Heating assembly; 21. Water inlet pipe; 22. Water outlet pipe; 23. Water inlet connector; 24. Water outlet connector; 25. Spiral metal pipe; 3. Fuel filter assembly; 31. Mounting plate; 32. Fuel filter. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing 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 this utility model.

[0018] Figure 1 The middle power assembly 1 displays the fuel filter assembly 3 and the heating assembly 2, but only a portion of the fuel tank is shown.

[0019] like Figure 1 As shown, this embodiment is a forklift fuel system suitable for extremely cold environments, which includes: a power component 1, which generates heat when running; a heating component 2 disposed inside the power component 1, the power component 1 and the heating component 2 forming a circulating water channel; and a fuel filter component 3 disposed inside the power component 1, the heating component 2 being disposed around the fuel filter component 3, and water cooling the power component 1 entering the heating component 2 through the water channel to form a heated area around the fuel filter component 3.

[0020] Specifically, the power unit 1 outputs the power required by the forklift by burning fuel. During its operation, it generates a lot of waste heat, which needs to be cooled by a cooling water circuit. The cooling water circuit is equipped with heat dissipation components to cool the heated water, and the cooled water is cooled again to further cool the water, forming a cooling water circulation circuit for the power unit 1.

[0021] Secondly, the fuel filter assembly 3 and the heating assembly 2 are fixedly connected inside the power assembly 1, i.e., inside the fuel tank. The heating assembly 2 also includes a water channel, which is connected to the cooling circulating water channel of the power assembly 1 to form a circulating water channel with a larger flow path. This allows the heated water that has absorbed heat in the power assembly 1 to enter the heating assembly 2 through the circulating water channel and raise its temperature. Furthermore, the middle area of ​​the heating assembly 2 forms a cavity for placing the fuel filter assembly 3, ensuring that the areas of the fuel filter assembly 3 that need to be heated are equidistant from the heating assembly 2. This allows the middle area of ​​the heating assembly 2 to form a heated area under the influence of the heated water, thereby heating the fuel filter assembly 3. Because the distance between the two is equal, the heat received by all parts of the fuel filter assembly 3 is uniform, resulting in consistent heating of all parts and a common temperature rise to the fuel cloud point. This improves the adaptability of the fuel filter assembly 3 in cold environments. At the same time, the heat received by the fuel filter assembly 3 is the waste heat generated during the operation of the power assembly 1, resulting in no additional fuel loss. This further improves the output power efficiency of the fuel in cold environments.

[0022] like Figure 2As shown, the heating component 2 includes a spiral metal tube 25 disposed around the fuel filter component 3. The spiral metal tube 25 forms at least one ring around the fuel filter component 3. The axis of the spiral metal tube 25 coincides with the longitudinal center line of the fuel filter component 3. The spiral metal tube 25 forms part of the circulating water channel and can conduct heat from the water channel.

[0023] Specifically, the heating component 2 is fixedly connected to the inside of the power component 1 by bolts. The two ends of the spiral metal tube 25 are respectively inlet and outlet of water to form part of the circulating water circuit. The heated water flows in from one end of the spiral metal tube 25 to increase the temperature of the spiral metal tube 25. At the same time, the spiral metal tube 25 is made of metal, and its good thermal conductivity allows it to form a good temperature field around it to heat the fuel filter component 3. The heat conduction process of the spiral metal tube 25 can reduce the temperature of the heated water. Then, the cooled heated water flows out from the spiral metal tube 25 and enters the heat sink to cool down and become cooling water. The temperature difference between the cooled heated water and the cooling water becomes smaller, thereby reducing the heat dissipation efficiency of the heat sink.

[0024] In this embodiment, the component of the fuel filter assembly 3 that needs to be heated to improve its filtration capacity is located at its end. Therefore, the end of the spiral metal tube 25 forms a spiral ring to increase the path of the heated water flowing around the end of the fuel filter assembly 3, thereby increasing its flow time and improving the heat conduction effect of the spiral ring. This results in a good temperature field in this area to increase the end temperature and ensure the normal operation of the fuel filter assembly 3. Secondly, the axis of the spiral metal tube 25 coincides with the center line of the fuel filter assembly 3, so that the gap between the spiral metal tube 25 and the fuel filter assembly 3 can be evenly distributed to improve the heating effect of the temperature field on the fuel in each part.

[0025] Furthermore, the heating component 2 also includes a water inlet pipe 21, a water inlet connector 23 connected to the water inlet pipe 21, a spiral metal pipe 25 with one end connected to the water inlet connector 23, a water outlet connector 24 connected to the other end of the spiral metal pipe 25, and a water outlet pipe 22 connected to the water outlet connector 24; the water flow for cooling the power component 1 flows sequentially from the water inlet pipe 21, the water inlet connector 23, the spiral metal pipe 25, the water outlet connector 24, and the water outlet pipe 22 back into the power component 1 to form a circulating water path.

[0026] Specifically, the inlet pipe 21 and the outlet pipe 22 are respectively connected to the water circuit of the power component 1 to form a circulating water circuit. The heated water flows from the inlet pipe 21 into the inlet connector 23 and then into the internal spiral metal pipe 25. After flowing through the spiral metal pipe 25, the cooled heated water flows through the outlet connector 24 into the outlet pipe 22 and then into the heat dissipation component of the power component 1 for heat dissipation. The inlet connector 23 and the outlet connector 24 are both connected to the power component 1 by pipe threads, so as to form a detachable connection while ensuring the internal sealing of the power component 1, making it easy to replace.

[0027] like Figure 3 As shown, the power assembly 1 includes: an engine 11 that generates heat during operation; an outlet 12 connected to an inlet pipe 21 and an inlet 13 connected to an outlet pipe 22, wherein water flowing into the engine 11 from the inlet 13 and out from the outlet 12 forms part of a circulating water path; and a fuel tank 14 for storing fuel, which is connected to the engine 11.

[0028] Specifically, fuel in fuel tank 14 enters engine 11 for combustion to generate waste heat, and cooling water enters the engine 11 from inlet 13 to dissipate heat, thus forming heated water. The heated water flows out from outlet 12 connected to engine 11 and then flows into inlet pipe 21 of heating component 2 to form part of the circulating water path. Secondly, fuel filter component 3 and heating component 2 are fixedly installed inside fuel tank 14, so that the heated water in the circulating water path forms a temperature field in fuel tank 14, heating the fuel while heating fuel filter component 3, thereby improving fuel output power efficiency.

[0029] like Figure 2 As shown, the fuel filter assembly 3 includes: a fuel filter 32 for filtering fuel flowing from the fuel tank 14 into the engine 11, the fuel filter 32 having an annular portion of a spiral metal tube 25 around its periphery; and a mounting plate 31 disposed on the housing of the fuel tank 14, the mounting plate 31 being able to connect the fuel filter 32 to the fuel tank 14.

[0030] Specifically, the fuel filter 32 is located deep within the fuel tank 14 to filter fuel from entering the engine 11. It is surrounded by a spiral ring of a spiral metal tube 25, which, under the heating effect of the temperature field, can quickly return to its normal operating temperature to improve the filtration effect. Secondly, the mounting plate 31 is fixedly connected to the opening formed by the housing with bolts. The water inlet connector 23 and the water outlet connector 24 are both installed on the top surface of the mounting plate 31. The non-spiral portion of the spiral metal tube 25 is also fixedly connected to the bottom surface of the mounting plate 31. This ensures that the spiral metal tube 25 and the fuel filter 32 are relatively fixed, guaranteeing that the spiral metal tube 25 and the fuel filter 32 remain in place when the forklift is operating on complex terrain, thus ensuring the heating effect of the spiral metal tube 25.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0032] The technologies, shapes, and structures not described in detail in this utility model are all known technologies.

Claims

1. A forklift fuel system suitable for extremely cold environments, characterized in that, The application relates to a power assembly (1) which generates heat during operation, a heating assembly (2) arranged inside the power assembly (1), the power assembly (1) and the heating assembly (2) forming a circulating water path, and a fuel filter assembly (3) arranged inside the power assembly (1), the heating assembly (2) being arranged around the fuel filter assembly (3), and water flowing to cool the power assembly (1) entering the heating assembly (2) through the water path to form a heating area around the fuel filter assembly (3). The heating assembly (2) comprises a spiral metal pipe (25) arranged around the fuel filter assembly (3), the spiral metal pipe (25) forming at least one circular ring around the fuel filter assembly (3), the axis of the spiral metal pipe (25) coinciding with the longitudinal center line of the fuel filter assembly (3), the spiral metal pipe (25) constituting a part of the circulating water path, and the spiral metal pipe (25) being capable of conducting the heat of the water path. The heating assembly (2) further comprises a water inlet pipe (21), a water inlet joint (23) connected to the water inlet pipe (21), the spiral metal pipe (25) having one end in communication with the water inlet joint (23), a water outlet joint (24) in communication with the other end of the spiral metal pipe (25), and a water outlet pipe (22) in communication with the water outlet joint (24). Water flowing to cool the power assembly (1) sequentially flows from the water inlet pipe (21), the water inlet joint (23), the spiral metal pipe (25), the water outlet joint (24), the water outlet pipe (22) and then flows into the power assembly (1) to form the circulating water path.

2. The forklift fuel system of claim 1, wherein: The power assembly (1) comprises:

3. The forklift fuel system of claim 2, wherein: an engine (11) which generates heat during operation, a water outlet (12) in communication with the water inlet pipe (21) and a water inlet (13) in communication with the water outlet pipe (22), water flowing to cool the engine (11) flowing into the water inlet (13) and flowing out of the water outlet (12) to constitute a part of the circulating water path, and 4. The forklift fuel system of claim 3, wherein: a fuel tank (14) for storing fuel, the fuel tank (14) being connected to the engine (11). The fuel filter assembly (3) comprises: a fuel filter (32) for filtering fuel flowing from the fuel tank (14) into the engine (11), the periphery of the fuel filter (32) being provided with an annular portion of the spiral metal pipe (25), and a fixed mounting plate (31) arranged on the shell of the fuel tank (14), the fixed mounting plate (31) being capable of connecting the fuel filter (32) to the fuel tank (14).

5. The forklift fuel system of claim 4, wherein: ​ ​ ​

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