A split-type oil pump assembly, oil tank and vehicle

Abstract

This utility model discloses a split-type oil pump assembly, an oil tank, and a vehicle. The split-type oil pump assembly is located in the oil cavity inside the oil tank and includes: an oil storage tank, an oil pump body, and an oil suction pipe. The oil storage tank has a receiving cavity and an oil inlet channel connecting the receiving cavity and the oil cavity. The oil pump body is set outside the oil storage tank independently. One end of the oil suction pipe is connected to the oil inlet end of the oil pump body, and the other end is connected to the receiving cavity. By separating the oil storage tank and the oil pump body, this utility model avoids the oil storage tank limiting the size of the oil pump body, allowing the oil pump body to expand in size radially. This reduces the Z-axis arrangement height of the oil pump body while maintaining the same output power. At the same time, after the oil pump body is separated from the oil storage tank, the volume of the receiving cavity of the oil storage tank is increased, which reduces the Z-axis arrangement height of the oil storage tank while meeting the oil supply demand, thereby reducing the overall height of the oil tank and reducing the space occupied by the oil tank.

Description

Technical Field

[0001] This utility model relates to the field of automotive fuel tank technology, specifically to a split-type fuel pump assembly, a fuel tank, and a vehicle. Background Technology

[0002] With the increasing intelligence of automobiles, more and more devices are integrated into vehicles, while the available space for their placement is decreasing. Among these, the traditional fuel tank, as a large component located at the bottom of the vehicle, occupies a significant amount of space and urgently needs space optimization.

[0003] To address this, related technologies integrate functional components such as the fuel pump and fuel tank into a single unit embedded within the fuel tank, aiming to reduce space occupancy. However, since the fuel tank needs to meet fuel supply requirements for a certain period, integrating the fuel pump and fuel tank necessitates increasing the size of the fuel tank to improve its volume. The standardized dimensions of the fuel tank interface limit the radial dimensions of the fuel tank; therefore, the tank's size can only be expanded vertically. This results in a relatively high Z-axis height for the fuel pump and fuel tank, requiring corresponding clearance in the vehicle floor to accommodate the fuel tank installation. This not only encroaches on passenger compartment space but also increases the manufacturing complexity of the vehicle floor. Utility Model Content

[0004] In view of the above problems, this utility model provides a split-type oil pump assembly, oil tank and vehicle, which can reduce the Z-axis height of the oil pump and oil storage tank and reduce the space occupied by the oil tank while meeting the oil supply demand.

[0005] According to one aspect of the present invention, a split-type oil pump assembly is provided, disposed in an oil chamber inside an oil tank, comprising: an oil storage tank having a receiving cavity and an oil inlet channel connecting the receiving cavity and the oil chamber; an oil pump body disposed independently outside the oil storage tank; and an oil suction pipe, one end of which is connected to the oil inlet end of the oil pump body, and the other end of which is connected to the receiving cavity.

[0006] In an exemplary embodiment of the present invention, the oil inlet channel includes an oil inlet located at the bottom of the oil storage tank, and the oil inlet is equipped with an oil filter for filtering fuel.

[0007] In an exemplary embodiment of the present invention, the split-type oil pump assembly further includes a return oil pipe and an overflow valve. One end of the return oil pipe is bypassed to the oil outlet end of the oil pump body via the overflow valve, and the other end of the return oil pipe is connected to the accommodating cavity.

[0008] In an exemplary embodiment of the present invention, the oil inlet channel further includes an oil inlet pipe, one end of which is disposed away from the oil storage tank and is equipped with an oil filter for filtering fuel; the other end of the oil inlet pipe is connected to the receiving cavity and disposed near the bottom of the receiving cavity.

[0009] In an exemplary embodiment of this utility model, the oil pump body and the oil storage tank are respectively disposed at opposite ends of the oil tank, and the end of the oil inlet pipe away from the oil storage tank is fixed to the bottom of the oil pump body.

[0010] In an exemplary embodiment of the present invention, the oil pump body and the oil storage tank are arranged at opposite ends of the oil tank, and the oil inlet end of the oil pump body is provided with a bypass interface, and the free end of the bypass interface is provided with an oil filter for filtering fuel.

[0011] In an exemplary embodiment of the present invention, a float assembly for detecting oil level is further provided at the oil storage tank and / or oil pump body.

[0012] According to a second aspect of the present invention, an oil tank is provided, including the above-described split-type oil pump assembly. The top of the oil tank is provided with a first interface and is equipped with a first flange cover that can be opened or closed relative to the first interface. The oil pump body is connected to the lower part of the first flange cover and is disposed near the bottom of the oil tank.

[0013] In an exemplary embodiment of the present invention, the top of the oil tank is provided with a second interface and a second flange cover that can be opened or closed relative to the second interface; the oil storage tank is connected to the bottom of the second flange cover and is located near the bottom of the oil tank.

[0014] According to a third aspect of the present invention, a vehicle is provided, including the fuel tank described above.

[0015] This utility model's split-type oil pump assembly separates the oil storage tank and the oil pump body, avoiding the limitation imposed by the oil storage tank on the size and specifications of the oil pump body. This allows the oil pump body to expand in size radially, thereby reducing the Z-axis height of the oil pump body while maintaining the same output power. At the same time, after the oil pump body is separated from the oil storage tank, the volume of the oil storage tank's accommodating cavity is increased, which can reduce the Z-axis height of the oil storage tank while meeting the oil supply demand, thereby reducing the overall height of the oil tank and minimizing the space occupied by the oil tank.

[0016] The above description is merely an overview of the technical solutions of the present utility model embodiments. In order to better understand the technical means of the present utility model embodiments and to implement them in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the present utility model embodiments more obvious and understandable, specific embodiments of the present utility model are described below. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the split-type oil pump assembly of this embodiment is shown; Figure 2 A schematic diagram of the fuel tank in this embodiment is shown; Figure 3 A cross-sectional view of the fuel tank in this embodiment is shown; Figure 4 A connection diagram of the split-type oil pump assembly in this embodiment is shown; Figure 5 A connection diagram of another split-type oil pump assembly in this embodiment is shown.

[0019] Explanation of icon numbers: 1-Oil storage tank, 11-Containing cavity, 12-Oil inlet channel, 121-Oil inlet, 122-Oil lead pipe, 2- Oil pump body, 21- Oil inlet, 211- Bypass interface, 22- Oil outlet, 23- Connecting part. 3-Suction pipe, 4-Oil filter, 5-Return pipe, 6-Relief valve, 7-Float assembly, 8-First flange cover, 81-Connecting rod, 82-Elastic element, 9-Second flange cover 100 - Oil tank, 101 - First interface, 102 - Second interface, 103 - Oil cavity.

[0020] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided to make the present invention more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art.

[0022] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a full understanding of embodiments of the present invention. However, those skilled in the art will recognize that the technical solutions of the present invention can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., may be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of the present invention.

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0024] Furthermore, the orientations or positional relationships indicated by terms such as "front," "rear," "left," "right," "up," and "down" in the embodiments of this utility model are based on the orientations or positional relationships shown in the accompanying drawings; the terms "inner" and "outer" in the embodiments of this application are defined based on the outline of the corresponding component. It is understood that the above-mentioned terms indicating orientations or positional relationships 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, and therefore should not be construed as a limitation of this utility model.

[0025] like Figures 1 to 4As shown, this embodiment provides a split-type oil pump assembly, located in the oil chamber 103 inside the oil tank 100, including: an oil storage tank 1, an oil pump body 2, and an oil suction pipe 3. The oil storage tank 1 has an internal accommodating cavity 11 and an oil inlet channel 12 connecting the internal accommodating cavity 11 and the external oil chamber 103. Since the cross-section of the accommodating cavity 11 is smaller than the cross-section of the oil chamber 103, the fuel in the oil chamber 103 can enter the accommodating cavity 11 from the oil inlet channel 12 for storage and later use based on the pressure difference. The oil pump body 2 is set independently outside the oil storage tank 1, that is, the oil pump body 2 and the oil storage tank 1 are distributed at intervals in the oil chamber 103 and are connected to each other through the oil suction pipe 3. One end of the oil suction pipe 3 is connected to the oil inlet end 21 of the oil pump body 2, and the other end of the oil suction pipe 3 is connected to the accommodating cavity 11 of the oil storage tank 1. Preferably, it is set close to the bottom of the accommodating cavity 11, so that the oil pump body 2 can fully draw fuel from the oil storage tank 1 when it is working. By separating the oil reservoir 1 and the oil pump body 2, the size of the oil pump body 2 can be avoided by the oil reservoir 1, allowing the oil pump body 2 to be expanded radially. This reduces the Z-axis height of the oil pump body 2 while maintaining the same output power. At the same time, after the oil pump body 2 is separated from the oil reservoir 1, the volume of the accommodating cavity 11 in the oil reservoir 1 is increased, which reduces the Z-axis height of the oil reservoir 1 while meeting the oil supply demand. This reduces the overall height of the oil tank 100 and decreases the space occupied by the oil tank 100 in the vehicle height direction.

[0026] It is understandable that a corresponding limiting structure or connecting structure (not shown in the figure) can be set inside the fuel tank 100. The fuel tank 1, the fuel pump body 2 and the fuel suction pipe 3 can be fixed inside the fuel tank 100 by means of snap-fit ​​or bolt connection. After the fixing is completed, the oil outlet end 22 of the fuel pump body 2 can be connected to the engine through the vehicle's fuel supply line so that when fuel supply is needed, fuel can be drawn from the fuel tank 1 by the fuel pump body 2 and delivered to the outside. The specific limiting structure or connecting structure can refer to the existing technology, and there are no restrictions or details here.

[0027] In some embodiments, such as Figure 1 and Figure 4 As shown, the oil inlet channel 12 includes an oil inlet 121 located at the bottom of the oil storage tank 1. The oil inlet 121 is equipped with an oil filter 4 for filtering fuel. The oil filter 4 can be filter cotton, a filter cover with filter holes, or a fuel filter, etc. In this way, when the fuel level in the oil chamber 103 is higher than the oil inlet 121 at the bottom of the oil storage tank 1, the fuel in the oil chamber 103 can enter the receiving cavity 11 inside the oil storage tank 1 through the oil inlet 121, thereby realizing the function of near-end fuel introduction; and the oil filter 4 can filter the fuel passing through the oil inlet 121, thereby improving the fuel quality.

[0028] Furthermore, a one-way valve (not shown in the figure) can be installed at the oil inlet 121. The one-way valve can restrict the flow direction of fuel at the oil inlet 121, so that fuel can only flow from the oil chamber 103 outside the oil storage tank 1 to the internal accommodating chamber 11, and cannot flow out in the opposite direction. The specific setting method can refer to the prior art, and will not be limited or described in detail here.

[0029] Understandably, when the split-type oil pump assembly is installed in the oil tank 100, the oil storage tank 1 can be placed at the bottom of the oil tank 100. In this way, the oil inlet 121 located at the bottom of the oil storage tank 1 is also at the lowest position in the oil chamber 103 of the oil tank 100, thereby ensuring the full utilization of the near-end oil priming function.

[0030] In some embodiments, such as Figure 1 and Figure 4 As shown, the split-type fuel pump assembly also includes a return pipe 5 and an overflow valve 6. One end of the return pipe 5 is connected to the oil outlet 22 of the fuel pump body 2 via the overflow valve 6, and the other end of the return pipe 5 is connected to the receiving cavity 11. In this way, when the working pressure of the vehicle's fuel supply line is too high, the overflow valve 6 can be opened to release excess fuel, allowing it to be returned to the fuel tank 1 via the return pipe 5.

[0031] Understandably, the opening and closing of the relief valve 6 can be automatically controlled by balancing the pipeline pressure and the preload of the valve body spring. When the pipeline pressure exceeds the set threshold of the valve body spring, the oil pushes the valve core to move, thereby opening the valve port and releasing pressure. When the pipeline pressure decreases, the valve body spring resets and closes the valve port. Alternatively, the pipeline pressure can be detected by a pressure sensor, and the opening and closing range of the relief valve 6 can be controlled by an electrical signal to achieve multi-stage pressure control.

[0032] In some embodiments, such as Figure 1 and Figure 4 As shown, the oil inlet channel 12 also includes an oil inlet pipe 122. One end of the oil inlet pipe 122 is located away from the oil storage tank 1 and is equipped with an oil filter 4 for filtering fuel. The oil filter 4 can be filter cotton, a filter cover with filter holes, or a fuel filter, etc. The other end of the oil inlet pipe 122 is connected to the receiving cavity 11 and is located near the bottom of the receiving cavity 11. In this way, fuel away from the oil storage tank 1 in the oil chamber 103 can be drawn through the oil inlet pipe 122, thereby realizing the function of remote oil inlet. Furthermore, the oil filter 4 at the other end of the oil inlet pipe 122 can filter the fuel flowing through the oil inlet pipe 122 to improve the fuel quality.

[0033] Furthermore, a one-way valve (not shown) can be installed inside the oil inlet pipe 122 or at one end of the oil inlet pipe 122 connected to the receiving cavity 11. The one-way valve can restrict the flow direction of fuel in the oil inlet pipe 122, so that fuel can only flow from the oil chamber 103 outside the oil storage tank 1 to the receiving cavity 11 inside, and cannot flow out in the opposite direction. The specific setting method can refer to the prior art, and will not be limited or described in detail here.

[0034] Understandably, when the split-type oil pump assembly is installed in the oil tank 100, the oil reservoir 1 and the oil inlet pipe 122 can be placed at the bottom of the oil tank 100. In this way, the oil reservoir 1 and the oil inlet pipe 122 are both at the lowest position in the oil chamber 103 of the oil tank 100, which can ensure the full utilization of the remote oil inlet function. At the same time, the end of the oil inlet pipe 122 away from the oil reservoir 1 can be fixedly connected to the inner wall of the bottom of the oil tank 100 to prevent the oil inlet pipe 122 from rubbing or hitting the oil tank 100 body as the vehicle moves within the oil chamber 103. In addition, one end of the oil inlet pipe 122 located in the accommodating cavity 11 can be bypassed to the other end of the oil suction pipe 3 located in the accommodating cavity 11 through an ejector valve (not shown). The negative pressure generated when the oil pump body 2 draws oil will create a siphon effect on the oil inlet pipe 122, thereby increasing the oil flow rate of the oil inlet pipe 122; or the oil inlet pipe 122 and the return oil pipe 5 can be connected in the accommodating cavity 11 through a Venturi tube (not shown). The jet formed when the oil returns through the return oil pipe 5 will create a siphon effect on the oil inlet pipe 122, thereby increasing the oil flow rate of the oil inlet pipe 122. The specific configuration method can refer to the existing technology, which is not limited here and will not be elaborated.

[0035] In some embodiments, such as Figure 1 and Figure 4 As shown, when the split-type fuel pump assembly is installed in the fuel tank 100, the fuel pump body 2 and the fuel reservoir 1 can be respectively located at opposite ends of the fuel tank 100, preferably at opposite ends along the length of the fuel tank 100. The end of the fuel inlet pipe 122 away from the fuel reservoir 1 is fixed to the bottom of the fuel pump body 2. In this way, the fuel reservoir 1 can draw fuel from opposite ends of the fuel tank 100 through the fuel inlet 121 and the fuel inlet pipe 122, achieving the purpose of double-end fuel drawing and ensuring that the fuel in the accommodating cavity 11 is fully supplied. At the same time, the fuel pump body 2 can be used as a fixing structure for the free end of the fuel inlet pipe 122. On the one hand, this can prevent the fuel inlet pipe 122 from rubbing or hitting the fuel tank 100 body as the vehicle moves within the fuel cavity 103. On the other hand, it can also avoid the need to add a fixing structure for fixing the fuel inlet pipe 122 to the inner wall of the fuel tank 100.

[0036] Understandably, when the split-type oil pump assembly is installed in the oil tank 100, the oil pump body 2, the oil storage tank 1, and the oil inlet pipe 122 are all placed at the bottom of the oil tank 100 to ensure full utilization of the dual-end oil inlet function.

[0037] In some embodiments, such as Figure 5 As shown, the oil pump body 2 and the oil storage tank 1 are located at opposite ends of the oil tank 100, preferably at both ends along the length of the oil tank 100. The oil inlet end 21 of the oil pump body 2 is provided with a bypass interface 211, and the free end of the bypass interface 211 is equipped with an oil filter 4 for filtering fuel. The oil filter 4 can be filter cotton, a filter cover with filter holes, or a fuel filter, etc. In this way, the oil pump body 2 can draw fuel from one end of the oil tank 100 through the bypass interface 211, or it can draw fuel from the oil storage tank 1 at the other end of the oil tank 100 through the fuel suction pipe 3, realizing the function of dual-end fuel suction and ensuring that the fuel is fully supplied.

[0038] It is understandable that the oil inlet end 21 and the bypass interface 211 of the oil pump body 2 can be located at the bottom of the oil pump body 2 to ensure full utilization of the oil suction function.

[0039] In some embodiments, such as Figure 1 and Figure 4 As shown, the oil storage tank 1 is also equipped with a float assembly 7, which can monitor the fuel level in the oil chamber 103. In other embodiments, the float assembly 7 can also be located at the oil pump body 2, which can also monitor the fuel level in the oil chamber 103.

[0040] It is understood that the float assembly 7 includes a float and a variable resistor. During the process of adding and consuming fuel in the oil chamber 103, the float can move up and down with the change of the oil level, thereby adjusting the resistance value of the variable resistor and realizing real-time monitoring of the fuel level. The specific setting method can refer to the existing technology, which is not limited here and will not be elaborated.

[0041] like Figures 1 to 3 As shown, in another embodiment, a fuel tank is also provided, including the aforementioned split-type fuel pump assembly. The top of the fuel tank 100 is provided with a first interface 101 and is equipped with a first flange cover 8 that can be opened or closed relative to the first interface 101. The fuel pump body 2 is connected to the lower part of the first flange cover 8 and is located near the bottom of the fuel tank 100. In this way, the fuel pump body 2 can be fixedly connected to the top of the fuel tank 100 through the first flange cover 8. When the first flange cover 8 is open, the fuel pump body 2 and its related components can be inspected and maintained through the first interface 101. Moreover, by positioning the fuel pump body 2 near the bottom of the fuel tank 100, it is ensured that the fuel pump body 2 can fully draw fuel from the fuel chamber 103 when the fuel pump body 2 is equipped with a bypass interface 211 or a fuel inlet pipe 122.

[0042] Understandably, the first flange cover 8 can be equipped with an oil outlet and an electrical interface. The oil outlet is connected to the oil outlet end 22 of the oil pump body 2 to supply oil to the vehicle's fuel supply line. The oil pump motor can be connected to the vehicle's infotainment system via the electrical interface to enable power supply, control, and data transmission for the oil pump motor. Furthermore, when the float assembly 7 is located at the oil pump body 2, it can share the electrical interface with the oil pump motor, thereby reducing the number of electrical interfaces required.

[0043] In some embodiments, such as Figures 1 to 3 As shown, the top of the oil tank 100 is also provided with a second interface 102, and a second flange cover 9 that can be opened or closed relative to the second interface 102; the oil storage tank 1 is connected to the lower part of the second flange cover 9 and is located near the bottom of the oil tank 100. In this way, the oil storage tank 1 can be fixedly connected to the top of the oil tank 100 through the second flange cover 9, and when the second flange cover 9 is open, the oil storage tank 1 and its related components can be inspected and maintained through the second interface 102; moreover, by setting the oil storage tank 1 near the bottom of the oil tank 100, the oil drawing function can be fully utilized when the oil storage tank 1 is equipped with an oil inlet 121 or an oil drawing pipe 122.

[0044] Understandably, a circuit interface can be configured on the second flange cover 9. When the float assembly 7 is located at the oil pump body 2, it can be connected to the vehicle system through the circuit interface to enable power supply and data transmission to the float assembly 7.

[0045] Furthermore, such as Figure 1 As shown, the oil pump body 2 and the first flange cover 8 can be connected by a connecting rod 81. One end of the connecting rod 81 is fixedly connected to the first flange cover 8, and the other end is connected to the circumferential outer edge of the oil pump body 2. This achieves both an effective connection between the oil pump body 2 and the first flange cover 8 and satisfies the requirement that the oil pump body 2 be positioned close to the bottom of the oil tank 100. Furthermore, as... Figure 1 As shown, a connecting part 23 can also be provided circumferentially on the oil pump body 2. The other end of the connecting rod 81 can be movably inserted through the connecting part 23, and an elastic element 82 is sleeved on the connecting rod 81, so that the two ends of the elastic element 82 abut against the first flange cover 8 and the connecting part 23 respectively. In this way, when the first flange cover 8 is installed from top to bottom from the first interface 101, the elastic element 82 can press the oil pump body 2 against the bottom of the oil tank 100, ensuring the stable arrangement of the oil pump body 2 at the bottom of the oil tank 100. Similarly, the connection method between the oil storage tank 1 and the second flange cover 9 can refer to the connection method between the oil pump body 2 and the first flange cover 8, which will not be described again here.

[0046] It is understood that, regarding the other structures and working principles of the split-type oil pump assembly in the above-mentioned oil tank 100, please refer to the above description of the embodiment of the split-type oil pump assembly; regarding the other structures of the oil tank 100, please refer to the prior art; since the split-type oil pump assembly has the above-mentioned technical effects, the oil tank 100 having the split-type oil pump assembly should also have the corresponding technical effects, which will not be repeated here.

[0047] Furthermore, in another embodiment, a vehicle is provided, including a fuel tank 100 with a split-type fuel pump assembly as described in the above embodiments. It is understood that for other structures and working principles of the split-type fuel pump assembly and fuel tank 100, please refer to the above description of the embodiments of the split-type fuel pump assembly and fuel tank 100; for other structures of the vehicle, please refer to the prior art; since the split-type fuel pump assembly and fuel tank 100 have the aforementioned technical effects, a vehicle having this split-type fuel pump assembly and fuel tank 100 should also have corresponding technical effects, which will not be elaborated further here.

[0048] It is understood that, in this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," 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 or an electrical 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 utility model according to the specific circumstances.

[0049] 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. "A plurality of" means two or more, unless otherwise explicitly specified. The terms "some embodiments," "exemplarily," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model.

[0050] The illustrative expressions of the terms used above do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, those skilled in the art can combine and integrate the different embodiments or examples described herein, as well as the features of those different embodiments or examples, without contradiction.

[0051] Although embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, substitutions and variations to the above embodiments within the scope of the present invention. Therefore, any changes or modifications made in accordance with the claims and description of the present invention should fall within the scope of the patent coverage of the present invention.

Claims

1. A split-type oil pump assembly, located in an oil chamber inside an oil tank, characterized in that, include: An oil storage tank, the oil storage tank having a receiving cavity and an oil inlet channel connecting the receiving cavity and the oil cavity; An oil pump body, wherein the oil pump body is externally disposed independently of the oil storage tank; and An oil suction pipe, one end of which is connected to the oil inlet of the oil pump body, and the other end of which is connected to the accommodating cavity.

2. The split oil pump assembly of claim 1, wherein, The oil inlet channel includes an oil inlet located at the bottom of the oil storage tank, and the oil inlet is equipped with an oil filter for filtering fuel.

3. A split oil pump assembly as claimed in claim 2, wherein, The split-type oil pump assembly also includes a return oil pipe and an overflow valve. One end of the return oil pipe is connected to the oil outlet end of the oil pump body via the overflow valve, and the other end of the return oil pipe is connected to the accommodating cavity.

4. A split oil pump assembly according to any one of claims 1-3, characterized in that The oil inlet channel also includes an oil inlet pipe, one end of which is located away from the oil storage tank and is equipped with an oil filter for filtering fuel; the other end of the oil inlet pipe is connected to the receiving cavity and is located near the bottom of the receiving cavity.

5. The split oil pump assembly of claim 4, wherein, The oil pump body and the oil storage tank are respectively located at opposite ends of the oil tank, and the end of the oil inlet pipe away from the oil storage tank is fixed to the bottom of the oil pump body.

6. A split oil pump assembly as claimed in any one of claims 1 to 3, wherein, The oil pump body and the oil storage tank are located at opposite ends of the oil tank, and the oil pump body has a bypass interface at the oil inlet end, and the free end of the bypass interface is equipped with an oil filter for filtering fuel.

7. The split oil pump assembly of claim 1, wherein The oil storage tank and / or oil pump body are also equipped with a float assembly for detecting the oil level.

8. An oil tank characterized by comprising: The oil tank includes a split-type oil pump assembly as described in any one of claims 1-7, wherein the top of the oil tank is provided with a first interface and is equipped with a first flange cover that can be opened or closed relative to the first interface; the oil pump body is connected to the lower part of the first flange cover and is disposed near the bottom of the oil tank.

9. The tank of claim 8, wherein The top of the oil tank is also provided with a second interface and a second flange cover that can be opened or closed relative to the second interface; the oil storage tank is connected to the bottom of the second flange cover and is located near the bottom of the oil tank.

10. A vehicle characterized by comprising: Includes the fuel tank as described in claim 8 or 9.

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