Oil tank device with filter and vehicle

Abstract

The invention provides an oil tank device with a filter and a vehicle, and relates to the technical field of oil tanks, the oil tank device comprises a filter assembly, the filter assembly is provided with an oil inlet channel, a filter cavity, an oil supply cavity and a pump body, the dirty oil side of the filter cavity communicates with the outlet end of the oil inlet channel, and the clean side of the filter cavity communicates with the oil supply cavity; the oil supply cavity is provided with an oil outlet channel and an exhaust channel, and the oil outlet channel communicates with an engine; the filter assembly is arranged in the oil tank, the inlet end of the oil inlet channel is communicated with the oil tank, and the outlet end of the exhaust channel is communicated with the oil tank; the pump body can drive the oil body to flow into the filtering cavity through the oil inlet channel to be filtered and then enter the oil supply cavity, the oil body in the oil supply cavity flows out through the oil outlet channel, gas in the oil supply cavity is exhausted to the oil tank through the exhaust channel, and the problem that in the prior art, exhaust of a filter is inconvenient is solved.

Description

Technical Field

[0001] The present application relates to the technical field of fuel tanks, and more particularly, to a fuel tank device with a filter and a vehicle. Background Art

[0002] In the prior art, the filter is usually designed as an independent external component and installed at a suitable position outside the fuel tank, such as in the oil circuit. Although this method solves the problem of oil circuit cleaning to a certain extent, it increases the overall volume and weight; or the filter is designed to be more compact and tightly connected to the fuel tank through a pipeline to reduce the independent occupied space of the filter. However, this design usually considers the layout and length of the pipeline to reduce the resistance and energy consumption in the oil circuit. After the first assembly or replacement and maintenance, the process of discharging the residual air inside the filter is complex, which affects the normal operation of the oil pump and the overall efficiency of the system.

[0003] In view of the above problems, no effective solution has been proposed yet. Summary of the Invention

[0004] The main object of the present application is to provide a fuel tank device with a filter and a vehicle to solve the problem of inconvenient air exhaust of the filter in the prior art.

[0005] To achieve the above object, according to one aspect of the present application, there is provided a fuel tank device with a filter, including: a filter assembly having an oil inlet passage, a filtering chamber, an oil supply chamber and a pump body, the dirty oil side of the filtering chamber is communicated with the outlet end of the oil inlet passage, the clean side of the filtering chamber is communicated with the oil supply chamber, the oil supply chamber has an oil outlet passage and an air exhaust passage, and the oil outlet passage is used for communicating with the engine; a fuel tank, the filter assembly is disposed inside the fuel tank, the inlet end of the oil inlet passage is communicated with the fuel tank, and the outlet end of the air exhaust passage is communicated with the fuel tank; wherein, the pump body can drive the oil body to flow into the filtering chamber through the oil inlet passage for filtration and then enter the oil supply chamber, the oil body in the oil supply chamber flows out through the oil outlet passage, and the gas in the oil supply chamber is discharged into the fuel tank through the air exhaust passage.

[0006] Further, the top of the filter assembly is detachably connected to the top of the fuel tank, and the bottom of the filter assembly abuts against the bottom of the fuel tank.

[0007] Further, a flexible buffer portion is provided at the bottom of the filter assembly, and the bottom of the filter assembly abuts against the bottom of the fuel tank through the flexible buffer portion.

[0008] Further, the fuel tank includes: a box body, the top of the box body is detachably connected to the filter assembly, the box body is communicated with the inlet end of the oil inlet passage, and the box body is communicated with the outlet end of the air exhaust passage; a limiting member, the limiting member is connected to the bottom of the box body, the limiting member has a limiting groove, and at least a part of the flexible buffer portion abuts against the limiting groove.

[0009] Further, the limiting member includes: a limiting member body, the limiting member body being in a barrel-shaped structure with one end open. Among them, the bottom of the limiting member body protrudes towards the outside of the box body to form a limiting groove, and an avoidance hole for the protruding part of the limiting member body to pass through is provided at the bottom of the box body. The open end of the limiting member body is arranged towards the top side of the box body, and at least part of the flexible buffer part is located in the limiting space formed by the limiting member body.

[0010] Further, the filter assembly includes a housing assembly and a filter assembly. The housing assembly includes: a housing, the housing being detachably connected to the top of the box body. A filter cavity is formed inside the housing, the filter assembly is arranged in the filter cavity, and an oil supply cavity is formed between a part of the housing and a part of the filter assembly. The oil supply cavity is located at the top of the filter cavity;

[0011] a cover body, the cover body being detachably connected to the housing, the filter assembly being connected to the cover body, and an oil supply cavity being enclosed between the cover body, the housing, and the filter assembly; a support member, the support member being connected to the bottom of the housing, the support member being arranged along the circumference of the housing, the support member being arranged in the limiting groove, and at least one of the support member and the housing being provided with a flexible buffer part.

[0012] Further, the housing has a connection section. The housing assembly includes a pressing plate and a gasket, the pressing plate and the gasket being oppositely arranged on both sides of the connection section, and the gasket being located between the connection section and the box body.

[0013] Further, the support member includes: a support body, the support body being arranged along the circumference of the housing, and a limiting flange being arranged on the outer circle of the support body. The limiting flange is in an annular structure, the limiting flange is coaxially arranged with the housing, and there is a gap between the limiting flange and the side wall of the support body.

[0014] Further, the flexible buffer part includes: a first component section, the first component section being connected to the housing, the first component section having a limiting groove, and the first component section being connected to the housing through the limiting groove; a second component section, the first end of the second component section being connected to the first component section, the second end of the second component section extending away from the first component section along the height direction of the housing, and the second end of the second component section extending away from the first component section gradually in the horizontal direction, and the second end of the second component section abutting against the limiting groove.

[0015] Further, the first component section is in a columnar structure, and there are multiple second component sections, and the multiple second component sections are arranged at intervals along the circumference of the first component section.

[0016] Further, the cross-sectional profile of the second component section along the axial direction of the housing is an arc, or the cross-sectional profile of the second component section along the axial direction of the housing is a straight line, or the cross-sectional profile of part of the second component sections along the axial direction of the housing is an arc, and the cross-sectional profile of the other part of the second component sections along the axial direction of the housing is a straight line.

[0017] According to another aspect of the present application, a vehicle is provided, including a fuel tank device having a filter, and the fuel tank device having a filter is the above-mentioned fuel tank device having a filter.

[0018] Applying the technical solution of the present application, the pump body can drive the oil body to enter the filtering cavity from the oil inlet passage, and after being filtered, it is sent to the oil supply cavity, and finally supplied to the engine through the oil outlet passage. The gas accumulated inside the oil supply cavity can be discharged back into the fuel tank through the exhaust passage, avoiding potential safety hazards and environmental impacts that may be caused by gas discharge, and solving the problem of inconvenient exhaust of the filter in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings forming a part of this application are used to provide a further understanding of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0020] Figure 1 The structural schematic diagram of the first embodiment of the fuel tank device having a filter according to the present application is shown;

[0021] Figure 2 Shown is Figure 1 The enlarged view at A in

[0022] Figure 3 The structural schematic diagram of the second embodiment of the fuel tank device having a filter according to the present application is shown;

[0023] Figure 4 Shown is Figure 3 The enlarged view at B in

[0024] Figure 5 The structural schematic diagram of the third embodiment of the fuel tank device having a filter according to the present application is shown.

[0025] Among them, the above-mentioned accompanying drawings include the following reference numerals:

[0026] 10. Filter assembly;

[0027] 11. Housing;

[0028] 110. Filtering cavity;

[0029] 111. Connection section;

[0030] 112. Oil inlet passage;

[0031] 113. Oil supply cavity;

[0032] 1131. Oil outlet passage;

[0033] 1132. Exhaust passage;

[0034] 12. Cover body;

[0035] 13. Support member;

[0036] 130. Support body;

[0037] 131. Limit flanging;

[0038] 14. Flexible buffer part;

[0039] 141. First component section; 1411. Limit groove;

[0040] 142. Second component section;

[0041] 15. Pressing plate;

[0042] 16. Washer;

[0043] 17. Pump body;

[0044] 20. Fuel tank;

[0045] 21. Box body;

[0046] 211. Bottom;

[0047] 22. Limiting member;

[0048] 220. Limiting member body;

[0049] 221. Limiting space;

[0050] 222. Limiting groove. Detailed implementation manner

[0051] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0052] It should be noted that the terms used herein are only for describing the specific implementation manners and are not intended to limit the exemplary implementation manners according to the present application. As used herein, unless otherwise clearly specified in the context, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "comprise" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0053] It should be noted that the terms "first", "second", etc. in the description, claims and above-mentioned drawings of this application are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances, so that the embodiments of the present application described here can be implemented in an order different from those illustrated or described here. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0054] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many different forms and should not be construed as being limited only to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of the present application is thorough and complete, and the concept of these exemplary embodiments is fully conveyed to those of ordinary skill in the art. In the drawings, for clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to denote the same devices, and thus their description will be omitted.

[0055] Combined with Figures 1 to 5 , in a specific embodiment of the present application, a fuel tank device with a filter is provided.

[0056] Specifically, the fuel tank device with a filter includes a filter assembly 10 and a fuel tank 20. The filter assembly 10 has an oil inlet passage 112, a filtration chamber 110, an oil supply chamber 113 and a pump body 17. The dirty oil side of the filtration chamber 110 is communicated with the outlet end of the oil inlet passage 112, and the clean side of the filtration chamber 110 is communicated with the oil supply chamber 113. The oil supply chamber 113 has an oil outlet passage 1131 and an exhaust passage 1132. The oil outlet passage 1131 is used to communicate with the engine; the filter assembly 10 is disposed in the fuel tank 20, the inlet end of the oil inlet passage 112 is communicated with the fuel tank 20, and the outlet end of the exhaust passage 1132 is communicated with the fuel tank 20; wherein, the pump body 17 can drive the oil body to flow into the filtration chamber 110 through the oil inlet passage 112 for filtration and then enter the oil supply chamber 113. The oil body in the oil supply chamber 113 flows out through the oil outlet passage 1131, and the gas in the oil supply chamber 113 is discharged to the fuel tank 20 through the exhaust passage 1132.

[0057] Combined with Figure 1As shown, in this embodiment, the pump body 17 can drive the oil body to enter the filtering chamber 110 from the oil inlet passage 112, and after filtration, it is sent to the oil supply chamber 113, and finally supplied to the engine through the oil outlet passage 1131. The gas accumulated inside the oil supply chamber 113 can be discharged back into the fuel tank 20 through the exhaust passage 1132, avoiding potential safety hazards and environmental impacts that may be brought about by gas discharge. The deep integration of the filter assembly 10 with the fuel tank 20 (and the filter assembly 10 is arranged inside the fuel tank 20) reduces the external space occupation of the traditional filter device, making the vehicle design more compact and the internal layout more reasonable, and providing a larger installation space for other key components.

[0058] Further, the top of the filter assembly 10 is detachably connected to the top of the fuel tank 20, and the bottom of the filter assembly 10 abuts against the bottom 211 of the fuel tank 20. Through the detachable design, the user can easily disassemble the filter assembly 10 for inspection, cleaning or replacement of the filter element without having to disassemble the entire fuel tank device, improving the maintenance efficiency and reducing the maintenance cost.

[0059] Combined Figure 1 As shown, the top of the filter assembly 10 is detachably connected to the top of the fuel tank 20, and the bottom of the filter assembly 10 abuts against the bottom 211 of the fuel tank 20, which not only provides a convenient way for maintenance and replacement, but also provides additional support and positioning, making the filter assembly 10 more stable, reducing vibration and displacement during vehicle operation, thereby protecting the internal precision components from damage and enhancing the user experience in terms of maintenance, use and cost control.

[0060] Further, a flexible buffer portion 14 is provided at the bottom of the filter assembly 10, and the bottom of the filter assembly 10 abuts against the bottom 211 of the fuel tank 20 through the flexible buffer portion 14. The flexible buffer portion 14 can absorb the vibration energy and impact force transmitted to the filter assembly during vehicle driving, especially when the vehicle is driving on an uneven road surface, it can significantly reduce the physical damage to the internal structure of the filter assembly 10 and extend the equipment life. In addition, the rigid contact between the filter assembly 10 and the fuel tank 20 may generate noise, and the flexible buffer portion 14 can effectively reduce this contact, thereby reducing the noise level and enhancing the comfort experience of the driver.

[0061] In this embodiment, due to possible slight dimensional deviations or surface unevenness in the fuel tank 20 during the manufacturing process, the flexible buffer portion 14 can adapt to these changes, fill the gaps, ensure close contact between the filter assembly 10 and the bottom 211 of the fuel tank 20, and improve the sealing and stability of the system. The flexible buffer portion 14 can be made of, but is not limited to, materials such as rubber, silicone, or polyurethane. By adding the flexible buffer portion 14 at the bottom of the filter assembly 10, this technical solution not only solves the stability problem of the filter assembly 10 in the fuel tank 20, but also improves the overall performance and service life of the system, reduces the maintenance cost, and brings new ideas and practical solutions to the oil system design of modern vehicles and industrial equipment.

[0062] Further, the fuel tank 20 includes a tank body 21 and a limiting member 22. The top of the tank body 21 is detachably connected to the filter assembly 10. The tank body 21 is communicated with the inlet end of the oil inlet passage 112, and the tank body 21 is communicated with the outlet end of the exhaust passage 1132. The limiting member 22 is connected to the bottom 211 of the tank body 21. The limiting member 22 has a limiting groove 222, and at least part of the flexible buffer portion 14 abuts against the limiting groove 222.

[0063] Combined Figure 1 with Figure 2 As shown, the detachable connection between the top of the tank body 21 and the filter assembly 10 makes the installation and disassembly operations of the filter assembly 10 more convenient, facilitating regular maintenance and servicing. At the same time, it ensures the sealing of the connection part and prevents oil leakage. The connection between the tank body 21 and the oil inlet passage 112 and the exhaust passage 1132 forms a closed-loop oil circuit and gas circuit system, optimizing the circulation paths of the oil and gas and improving the overall operating efficiency. Through the abutment of the limiting groove 222 and the flexible buffer portion 14, the stable position of the filter assembly 10 in the fuel tank 20 can be ensured, and it can maintain its normal working state even when the vehicle encounters bumps or impacts during driving.

[0064] Further, the limiting member 22 includes a limiting member body 220. The limiting member body has a barrel-shaped structure with one end open. Among them, the bottom of the limiting member body 220 protrudes outward from the outside of the tank body 21 to form the limiting groove 222. The bottom 211 of the tank body 21 is provided with an avoidance hole for the protruding portion of the limiting member body 220 to pass through. The open end of the limiting member body 220 is arranged toward the top side of the tank body 21, and at least part of the flexible buffer portion 14 is located in the limiting space 221 formed by the limiting member body 220.

[0065] Combined Figure 2As shown, the limiting member body 220 is a barrel-shaped structure with an open end, having good load-bearing capacity and structural stability. Through the outward protrusion at the bottom of the limiting member body 220, a limiting space 221 is formed that matches the flexible buffer portion 14 at the bottom of the filter assembly 10, which can accurately define the bottom position of the filter assembly 10 and prevent it from shifting or shaking in the fuel tank 20 due to vehicle movement. At the same time, it provides an installation position for the flexible buffer portion 14, enhancing the sealing and stability of the bottom connection. At least part of the flexible buffer portion 14 is designed to be located within the limiting space 221 formed by the limiting member body 220. This not only maximizes the buffering effect but also ensures the precise alignment of the filter assembly 10 in the fuel tank 20, maintaining its position stability and working efficiency even in a complex dynamic environment. The contact between the flexible buffer portion 14 and the limiting groove 222 can absorb and relieve the vibration and impact between the filter assembly 10 and the fuel tank 20. At the same time, through its good deformability and resilience, the continuous seal at the connection is maintained to prevent oil and gas leakage.

[0066] Furthermore, the filter assembly 10 includes a housing assembly and a filtering assembly. The housing assembly includes a housing 11, a cover 12, and a support member 13. The housing 11 is detachably connected to the top of the box body 21. A filtering chamber 110 is formed inside the housing 11. The filtering assembly is disposed in the filtering chamber 110. An oil supply chamber 113 is formed between a part of the housing 11 and a part of the filtering assembly. The oil supply chamber 113 is located at the top of the filtering chamber 110. The cover 12 is detachably connected to the housing 11. The filtering assembly is connected to the cover 12. The cover 12, the housing 11, and the filtering assembly enclose the oil supply chamber 113. The support member 13 is connected to the bottom of the housing 11. The support member 13 is arranged along the circumference of the housing 11. The support member 13 is disposed in the limiting groove 222. At least one of the support member 13 and the housing 11 is provided with the flexible buffer portion 14.

[0067] In this embodiment, the housing 11 is integrated with the top of the tank body 21 of the fuel tank 20 through a detachable connection method, and a filter chamber 110 is formed inside for accommodating the filter assembly. The bottom of the housing 11 is connected to the limit groove 222 of the fuel tank limit member through the support member 13, enhancing the overall stability of the assembly. The outer peripheral surface of the housing 11 and the filter assembly forms the dirty oil side of the filter chamber 110, and the inner peripheral surface of part of the filter assembly forms the clean side of the filter chamber 110. The cover 12 and the housing 11 also adopt a detachable connection, which is convenient for the maintenance of the filter assembly and the replacement of the filter element. The cover 12, the housing 11 and the filter assembly jointly enclose an oil supply chamber 113 to ensure that the filtered clean oil can be smoothly pumped to the engine. The oil supply chamber 113 is located at the top of the filter chamber 110 and is directly connected to the cover 12, ensuring the rapid and smooth supply of clean oil and reducing the pressure loss and air resistance problems during the oil supply process. The support member 13 is arranged along the circumference of the housing 11, which not only provides a stable bottom support for the filter assembly 10, but also ensures the precise positioning of the filter assembly 10 and the bottom 211 of the fuel tank 20 by being arranged in the limit groove 222. The support member 13 or the housing 11 is provided with a flexible buffer portion 14 to achieve shock absorption and sealing.

[0068] Furthermore, the cover 12 is provided with an oil outlet passage 1131 and an exhaust passage 1132. The exhaust passage 1132 combines the automatic exhaust requirements after the first assembly or replacement and maintenance of the filter, as well as the continuous exhaust management during operation. Different from the traditional design of directly discharging the gas into the atmosphere, in this technical solution, the exhaust passage 1132 is designed to return the discharged gas to the inside of the fuel tank 20, which not only avoids environmental pollution but also reduces the waste of oil and gas, reflecting the dual considerations of environmental protection and economy.

[0069] Furthermore, the housing 11 has a connection section 111. The housing assembly includes a pressing plate 15 and a gasket 16. The pressing plate 15 and the gasket 16 are relatively arranged on both sides of the connection section 111, and the gasket 16 is located between the connection section 111 and the tank body 21.

[0070] Combined Figure 3 and Figure 4 As shown, in this embodiment, the pressing plate 15 is arranged on one side of the top of the connection section 111 and has relatively high hardness and strength, and is used to fix the filter assembly 10 on the top of the fuel tank 20 through fasteners (such as bolts). The use of the pressing plate 15 ensures the firmness and sealing of the connection, and at the same time provides sufficient support to prevent the filter assembly 10 from shifting or vibrating during operation. The gasket 16 is located between the pressing plate 15 and the bottom of the connection section 111. Its main function is to form a sealing layer between the filter assembly 10 and the tank body 21 of the fuel tank 20 to prevent oil and gas leakage. At the same time, the gasket 16 can compensate for the gaps caused by manufacturing tolerances or use wear, ensuring the sealing performance during long-term use.

[0071] Further, the support member 13 includes a support body 130 which is arranged along the circumferential direction of the housing 11. A limiting flange 131 is provided on the outer circumference of the support body 130. The limiting flange 131 is of an annular structure and is arranged coaxially with the housing 11, and there is a gap between the limiting flange 131 and the side wall of the support body 130.

[0072] Combined with Figure 2 As shown, in this embodiment, the support body 130 is arranged along the circumferential direction of the housing 11, having good rigidity and load-bearing capacity, and can effectively support the weight of the filter assembly, preventing it from displacing or deforming in the fuel tank due to the fluctuation of the oil body. As the peripheral structure of the support body 130, the limiting flange 131 is designed to be annular and arranged coaxially with the housing 11, ensuring the concentric positioning of the filter assembly 10 and the fuel tank 20. Even when the oil level in the fuel tank 20 changes, it can maintain a stable operating state. There is a gap between the limiting flange 131 and the side wall of the support body 130, enabling the support member 13 to combine the functions of positioning and shock absorption. It not only ensures the precise limiting effect of the limiting flange 131 but also allows the filter assembly 10 to have appropriate displacement space when encountering slight vibrations or thermal expansion and contraction, avoiding damage caused by excessive stress.

[0073] Further, the flexible buffer portion 14 includes a first component segment 141 and a second component segment 142. The first component segment 141 is connected to the housing 11. The first component segment 141 has a limiting groove 1411, and the first component segment 141 is connected to the housing 11 through the limiting groove 1411. The first end of the second component segment 142 is connected to the first component segment 141, and the second end of the second component segment 142 extends away from the first component segment 141 along the height direction of the housing 11, and the second end of the second component segment 142 extends gradually away from the first component segment 141 in the horizontal direction, and the second end of the second component segment 142 abuts against the limiting groove 222.

[0074] Combined with Figure 2 、 Figure 3 and Figure 5As shown, in this embodiment, the first component segment 141 serves as the basic component of the flexible buffer portion 14 and is tightly connected to the housing 11, ensuring the initial positioning between the filter assembly 10 and the fuel tank 20. The existence of the limiting groove 1411 enables the first component segment 141 to be firmly fixed on the housing 11, preventing accidental detachment during operation. At the same time, the design of the limiting groove 1411 allows for fine-tuning of the first component segment 141 when necessary to adapt to the connection requirements of different fuel tanks 20. The first end of the second component segment 142 is connected to the first component segment 141, forming a continuous flexible buffer interface, increasing the contact area of the component inside the fuel tank 20 and improving the sealing effect. The second end of the second component segment 142 is designed to extend along the height direction of the housing 11 and gradually move away from the first component segment 141 in the horizontal direction, enhancing the continuity and uniformity of the seal. The second end of the second component segment 142 abuts against the limiting groove 222 of the fuel tank limiting member 22. Utilizing its good elasticity and deformation ability, it fills the gap between the housing 11 and the bottom 211 of the fuel tank 20, further improving the positioning accuracy and sealing performance of the filter assembly 10.

[0075] Furthermore, the first component segment 141 is of a columnar structure, and there are multiple second component segments 142. The multiple second component segments 142 are arranged at intervals along the circumferential direction of the first component segment 141. The first component segment 141, as the main body of the flexible buffer portion 14, adopts a columnar structure. The second component segments 142 are designed as multiple independent elastic units, which are arranged at intervals along the circumferential direction of the first component segment 141 to disperse the pressure and further improve the connection stability.

[0076] Furthermore, in combination with Figure 2 As shown, in this embodiment, the first component segment 141 is provided with weight-reducing holes, which can achieve the technical effects of material saving, weight reduction, and cost reduction. At the same time, it can also increase the flexibility of the flexible buffer portion 14, facilitate assembly, and improve the flexibility of the fuel tank device. Figure 2 A drain bolt is also shown in [reference]. The drain bolt is detachably connected to the limiting groove 222. When the fuel tank 20 needs to be drained or the impurities accumulated at the bottom of the fuel tank 20 need to be cleaned, the drain bolt is removed to drain the oil in the fuel tank 20.

[0077] In an embodiment of the present application, the profile line of the cross-section of the second component segment 142 along the axial direction of the housing 11 is an arc, so as to better adapt to the curved surface structure of the fuel tank 20, achieve closer contact, and thus provide a better sealing effect. In addition, the arc-shaped second component segment 142 can also disperse and absorb the vibrations inside the fuel tank to a certain extent, reduce the mechanical stress of the filter assembly 10, and extend its service life.

[0078] In one embodiment of the present application, the profile of the second component section 142 along the axial cross-section of the housing 11 is a straight line, so that the box body 21 of the fuel tank 20 has a planar or nearly planar contact area. The straight-line second component section 142 can provide stable support and positioning, simplify the installation and disassembly process of the filter assembly 10. At the same time, the straight-line design is also more convenient in manufacturing and assembly.

[0079] In one embodiment of the present application, the profile of a part of the second component section 142 along the axial cross-section of the housing 11 is an arc, and the profile of another part of the second component section 142 along the axial cross-section of the housing 11 is a straight line. This mixed-profile design can combine the advantages of the two profiles. The arc region can closely fit the curved surface of the fuel tank 20 to enhance the sealing performance; the straight-line region can provide stable support and positioning, simplify the installation process, so as to be applicable to scenarios where the structure of the fuel tank 20 is complex or has different contact surfaces, improving the adaptability of the filter assembly 10 and the stability and efficiency of the overall system.

[0080] In another embodiment of the present application, the fuel tank 20 has a return oil pipeline, one end of the return oil pipeline is used to communicate with the engine, and the other end of the return oil pipeline is communicatively arranged with at least one of the oil inlet passage 112, the filtration chamber 110, the oil supply chamber 113, and the fuel tank 20.

[0081] In one embodiment of the present application, the other end of the return oil pipeline is connected to the oil inlet passage 112, and the return oil can enter the filtration process again as part of the inlet oil, so as to further purify the impurities and particles in the return oil by using the filter assembly 10, ensuring the quality of the circulating oil body.

[0082] In one embodiment of the present application, by directly connecting the return oil pipeline to the filtration chamber 110, the return oil can be introduced into the dirty oil side of the filter assembly 10, so that the return oil passes through the filter element again, effectively removing the impurities accumulated during the circulation process, improving the cleanliness of the oil body system, and helping to extend the life of the engine and improve the operating efficiency.

[0083] In one embodiment of the present application, the connection of the return oil pipeline to the oil supply chamber 113 allows the return oil to be directly added to the oil supply path under certain conditions. This design can provide additional oil supply under certain specific working conditions (such as high load or after cooling), enhancing the flexibility of the system and the ability to cope with emergencies.

[0084] In one embodiment of the present application, when the return oil pipeline is directly connected to the box body 21, the return oil can be introduced into any position of the fuel tank 20, which can be flexibly adjusted according to needs. For example, it can be introduced into the bottom of the fuel tank 20 to help accumulate the moisture and impurities in the oil body, facilitating subsequent discharge and treatment.

[0085] In another embodiment of the present application, a vehicle is further provided, including a fuel tank device with a filter, and the fuel tank device with a filter is the fuel tank device with a filter in the above embodiment.

[0086] Specifically, the fuel tank device with a filter includes a filter assembly 10 and a fuel tank 20. The filter assembly 10 has an oil inlet passage 112, a filtration chamber 110, an oil supply chamber 113, and a pump body 17. The dirty oil side of the filtration chamber 110 is communicated with the outlet end of the oil inlet passage 112, the clean side of the filtration chamber 110 is communicated with the oil supply chamber 113, the oil supply chamber 113 has an oil outlet passage 1131 and an exhaust passage 1132, and the oil outlet passage 1131 is used for communicating with the engine; the filter assembly 10 is disposed in the fuel tank 20, the inlet end of the oil inlet passage 112 is communicated with the fuel tank 20, and the outlet end of the exhaust passage 1132 is communicated with the fuel tank 20; wherein, the pump body 17 can drive the oil body to flow into the filtration chamber 110 through the oil inlet passage 112, after being filtered, enter the oil supply chamber 113, the oil body in the oil supply chamber 113 flows out through the oil outlet passage 1131, and the gas in the oil supply chamber 113 is discharged to the fuel tank 20 through the exhaust passage 1132.

[0087] Combined Figure 1 As shown, in this embodiment, the pump body 17 can drive the oil body to enter the filtration chamber 110 from the oil inlet passage 112, after being filtered, then sent to the oil supply chamber 113, and finally supplied to the engine through the oil outlet passage 1131. The gas accumulated inside the oil supply chamber 113 can be discharged back into the fuel tank 20 through the exhaust passage 1132, avoiding potential safety hazards and environmental impacts that may be brought by gas discharge. The deep integration of the filter assembly 10 and the fuel tank 20 (and the filter assembly 10 is disposed in the fuel tank 20) reduces the external space occupation of the traditional filter device, makes the vehicle design more compact, the internal layout more reasonable, and provides a larger installation space for other key components.

[0088] From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects:

[0089] 1) Integrate the pump body 17 and the exhaust passage 1132 inside the filter, and directly install the filter assembly 10 in the fuel tank 20, greatly reducing the external occupied space, optimizing the internal layout of the vehicle, and improving the flexibility and aesthetics of the design.

[0090] 2) Different from the traditional design of directly discharging the gas into the atmosphere, in this technical solution, the exhaust passage 1132 is designed to return the discharged gas back into the fuel tank 20. This not only avoids environmental pollution but also reduces the waste of oil and gas, reflecting dual considerations of environmental protection and economy. By designing the oil outlet passage 1131 and the exhaust passage 1132, the pressure inside the fuel tank is effectively balanced, ensuring the smooth flow of the oil body in the fuel tank 20, and improving the stability and safety of the system.

[0091] For ease of description, spatial relative terms such as "above", "over", "on the upper surface", "upper" etc. may be used herein to describe the spatial positional relationship of one device or feature to other devices or features as shown in the figures. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is inverted, the device described as "above" or "over" other devices or structures will then be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the corresponding interpretations of the spatial relative descriptions used herein will be made accordingly.

[0092] In addition to the above, it should be noted that the "one embodiment", "another embodiment", "embodiment" etc. mentioned in this specification refer to the specific features, structures or characteristics described in connection with that embodiment being included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when describing a specific feature, structure or characteristic in connection with any one embodiment, it is intended that the implementation of such feature, structure or characteristic in combination with other embodiments also falls within the scope of this application.

[0093] In the above embodiments, the descriptions of each embodiment have their own emphases. For the parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0094] The above are only the preferred embodiments of this application and are not intended to limit this application. For those skilled in the art, this application may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the protection scope of this application.

Claims

1. A fuel tank device with a filter, characterized in that, Comprising: A filter assembly (10), the filter assembly (10) having an oil inlet passage (112), a filtering chamber (110), an oil supply chamber (113) and a pump body (17), a dirty oil side of the filtering chamber (110) being in communication with an outlet end of the oil inlet passage (112), a clean side of the filtering chamber (110) being in communication with the oil supply chamber (113), the oil supply chamber (113) having an oil outlet passage (1131) and an exhaust passage (1132), the oil outlet passage (1131) being adapted to communicate with an engine; A fuel tank (20), the filter assembly (10) being disposed within the fuel tank (20), an inlet end of the oil inlet passage (112) being in communication with the fuel tank (20), an outlet end of the exhaust passage (1132) being in communication with the fuel tank (20); Wherein, the pump body (17) can drive the oil body to flow into the filtering chamber (110) through the oil inlet passage (112), be filtered and then enter the oil supply chamber (113), the oil body in the oil supply chamber (113) flows out through the oil outlet passage (1131), and the gas in the oil supply chamber (113) is discharged to the fuel tank (20) through the exhaust passage (1132).

2. The fuel tank device with a filter according to claim 1, characterized in that, A top of the filter assembly (10) is detachably connected to a top of the fuel tank (20), and a bottom of the filter assembly (10) abuts against a bottom of the fuel tank (20).

3. The fuel tank device with a filter according to claim 2, characterized in that, A flexible buffer portion (14) is provided at a bottom of the filter assembly (10), and the bottom of the filter assembly (10) abuts against the bottom of the fuel tank (20) through the flexible buffer portion (14).

4. The fuel tank device with a filter according to claim 3, characterized in that, The fuel tank (20) comprises: A box body (21), a top of the box body (21) being detachably connected to the filter assembly (10), the box body (21) being in communication with an inlet end of the oil inlet passage (112), the box body (21) being in communication with an outlet end of the exhaust passage (1132); A limiting member (22), the limiting member (22) being connected to a bottom (211) of the box body (21), the limiting member (22) having a limiting groove (222), at least a part of the flexible buffer portion (14) abutting against the limiting groove (222).

5. The fuel tank device with a filter according to claim 4, characterized in that, The limiting member (22) comprises: A limiting member body (220), the limiting member body being in a barrel-shaped structure with one end open, wherein, a bottom of the limiting member body (220) protrudes towards the outside of the box body (21) to form the limiting groove (222), an avoidance hole for the protruding portion of the limiting member body to pass through is provided at the bottom (211) of the box body (21), an open end of the limiting member body faces a top side of the box body (21), and at least a part of the flexible buffer portion (14) is located in a limiting space (221) formed by the limiting member body (220).

6. The fuel tank device with a filter according to claim 5, characterized in that, The filter assembly (10) comprises a housing assembly and a filtering assembly, the housing assembly comprising: A housing (11), the housing (11) is detachably connected to the top of the box body (21), a filter chamber (110) is formed inside the housing (11), the filter assembly is arranged in the filter chamber (110), and an oil supply chamber (113) is formed between a part of the housing (11) and a part of the filter assembly, and the oil supply chamber (113) is located at the top of the filter chamber (110); A cover body (12), the cover body (12) is detachably connected to the housing (11), the filter assembly is connected to the cover body (12), and the cover body (12), the housing (11) and the filter assembly enclose the oil supply chamber (113); A support member (13), the support member (13) is connected to the bottom of the housing (11), the support member (13) is arranged along the circumference of the housing (11), the support member (13) is arranged in the limit groove (222), and at least one of the support member (13) and the housing (11) is provided with the flexible buffer portion (14).

7. The fuel tank device with a filter according to claim 6, characterized in that, The housing (11) has a connection section (111), the housing assembly includes a pressing plate (15) and a gasket (16), the pressing plate (15) and the gasket (16) are relatively arranged on both sides of the connection section (111), and the gasket (16) is located between the connection section (111) and the box body (21).

8. The fuel tank device with a filter according to claim 6, characterized in that, The support member (13) includes: A support body (130), the support body (130) is arranged along the circumference of the housing (11), and a limit flange (131) is arranged on the outer circle of the support body (130), the limit flange (131) is an annular structure, the limit flange (131) is coaxially arranged with the housing (11), and the limit flange (131) is arranged with a gap between the side wall of the support body (130).

9. The fuel tank device with a filter according to any one of claims 6 to 8, characterized in that, The flexible buffer portion (14) includes: A first component section (141), the first component section (141) is connected to the housing (11), the first component section (141) has a limit groove (1411), and the first component section (141) is connected to the housing (11) through the limit groove (1411); A second component section (142), a first end of the second component section (142) is connected to the first component section (141), a second end of the second component section (142) extends away from the first component section (141) along the height direction of the housing (11), and the second end of the second component section (142) extends away from the first component section (141) gradually in the horizontal direction, and the second end of the second component section (142) abuts against the limit groove (222).

10. The fuel tank device with a filter according to claim 9, characterized in that, The first component section (141) is a columnar structure, the second component sections (142) are multiple, and the multiple second component sections (142) are arranged at intervals along the circumference of the first component section (141).

11. The fuel tank device with a filter according to claim 9, characterized in that The profile of the cross-section of the second formed section (142) along the axial direction of the housing (11) is an arc, or, The profile of the cross-section of the second formed section (142) along the axial direction of the housing (11) is a straight line, or, The profile of the cross-section of a part of the second formed section (142) along the axial direction of the housing (11) is an arc, and the profile of the cross-section of another part of the second formed section (142) along the axial direction of the housing (11) is a straight line.

12. A vehicle, comprising a fuel tank device having a filter, characterized in that, The fuel tank device with a filter is the fuel tank device with a filter according to any one of claims 1 to 11.

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