A dual pump oil tank

Abstract

The utility model relates to the field of vehicle accessories especially relates to a double pump oil tank, including the oil tank body with oil storage cavity, the bottom wall of oil tank body one end recess forms has the oil collecting groove, and the other end forms has the oil supplementing area, the double pump oil tank still includes: oil pump, installs in the oil tank body is located in the oil collecting groove position, the oil inlet of oil pump sets up in the bottom of oil collecting groove, and the oil outlet extends to the outside of oil tank body, liquid level sensor, install in the oil tank body, liquid level sensor can monitor the liquid level of oil collecting groove, oil supplementing pump, set up in the oil tank body, the oil inlet of oil supplementing pump sets up in the oil supplementing area, and the oil outlet sets up in the oil collecting groove, the utility model discloses through being provided with two oil pumps, effectively solved the problem existing in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of vehicle parts, and in particular to a dual-pump fuel tank. Background Technology

[0002] Vehicle fuel tanks typically supply fuel to the engine via a fuel pump. The fuel pump's inlet is usually located on the bottom wall of the tank. To address fuel supply stability under conditions of low fuel volume and uphill / downhill driving, some fuel tanks incorporate a recessed oil collection trough at the bottom, with the fuel pump's inlet positioned within this trough. This ensures that the oil collection trough contains sufficient fuel for the pump to absorb when the vehicle is going uphill or downhill.

[0003] The applicant discovered that in the fuel tanks of off-road vehicles used in mountainous and forested environments and mine sloping tunnels, the depth of the fuel collection groove is limited in order to meet the safety space requirements at the bottom of the fuel tank (the fuel tank is mostly located in the vehicle frame), resulting in a limited fuel collection groove volume. Furthermore, these vehicles consume a lot of fuel, which can easily lead to insufficient fuel in the fuel collection groove when driving on long slopes.

[0004] Patent CN203611736U discloses an automotive fuel tank assembly and a vehicle incorporating it. The assembly features a movable fuel pipe, with the end of the pipe moved to a position within the fuel tank via a gravity device. To allow for flexible movement of the fuel pipe end, this type of fuel tank requires a flat bottom wall. During fuel pump operation, the fuel level must be consistently higher than the end of the fuel pipe. However, when the vehicle is traveling on flat roads or at low fuel levels, the fuel ripples within the tank during acceleration and deceleration, making it easy for air to be drawn into the fuel pipe end. Furthermore, this results in low fuel utilization within the tank.

[0005] Based on the aforementioned problems, this application proposes a dual-pump oil tank to solve the problems existing in the prior art. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides a dual-pump oil tank, which effectively solves the problems existing in the prior art by setting two oil pumps.

[0007] To address the aforementioned problems, this utility model provides a dual-pump oil tank, comprising an oil tank body with an oil storage chamber, wherein one end of the bottom wall of the oil tank body is recessed to form an oil collection groove, and the other end forms an oil replenishment area; the dual-pump oil tank further comprises: an oil delivery pump, installed on the oil tank body at the location of the oil collection groove, the oil delivery pump having its inlet end located at the bottom of the oil collection groove and its outlet end extending to the outside of the oil tank body; a liquid level sensor, installed on the oil tank body, the liquid level sensor being able to monitor the liquid level in the oil collection groove; and an oil replenishment pump, disposed on the oil tank body, the oil replenishment pump having its inlet end located in the oil replenishment area and its outlet end located in the oil collection groove.

[0008] Furthermore, the liquid level sensor is configured as a reed switch; the oil pump includes a bottom shell with an oil inlet, a mounting base installed on the top wall of the oil tank body, and a support rod connected between the bottom shell and the mounting base, and the reed switch is disposed between the bottom shell and the mounting base.

[0009] Furthermore, the bottom wall of the oil tank body is recessed in the oil replenishment area to form an oil replenishment groove, and the oil inlet end of the oil replenishment pump is located at the bottom of the oil replenishment groove. The bottom wall of the oil replenishment tank is higher than the bottom wall of the oil collection tank.

[0010] Furthermore, the oil tank body has a first mounting hole on the top wall above the oil replenishment area and a second mounting hole on the upper side of the oil collection trough; The replenishing pump is equipped with a deformable replenishing pipe, and the end of the replenishing pipe away from the replenishing pump forms the oil outlet end of the replenishing pump. The oil tank body is provided with a connecting part at the oil collection trough position, and the oil outlet end of the oil replenishment pipe is inserted and fixed at the connecting part.

[0011] Furthermore, the connecting part is configured as a connecting plate, the connecting plate having a slot extending through its top, and the oil outlet end of the oil replenishment pipe is inserted into the slot.

[0012] Furthermore, the oil replenishment pipe is interference-fitted into the connection portion, and / or, The oil outlet end of the oil replenishment pipe is magnetically connected to the connection part.

[0013] Furthermore, the oil outlet end of the oil replenishment pipe is provided with two spaced-apart fixing plates, and the space between the two fixing plates forms the insertion space for the connecting part.

[0014] Furthermore, the oil outlet end of the oil replenishment pipe is provided with a counterweight, which is located on the side of the connection portion away from the oil replenishment pump.

[0015] Furthermore, the connecting plate is configured to extend from bottom to top in a direction away from the oil replenishment pump, and the two side edges of the connecting plate extend to the center of the oil collection tank on the side away from the oil replenishment area.

[0016] Furthermore, the upper edge of the connecting plate gradually decreases from the middle to both sides.

[0017] The beneficial effect of this utility model is that by setting two oil pumps, it effectively solves the problems existing in the prior art. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a side cross-sectional view of an embodiment of the present invention.

[0019] Figure 2 for Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0020] Figure 3 for Figure 1 The illustrated embodiment is shown in a partial top view of the oil collection tank.

[0021] Figure 4 For another embodiment of this utility model, see reference. Figure 2 The diagram shows the structure of the part shown.

[0022] The components include: 1. Oil tank body; 2. Oil collection trough; 3. Oil pump; 301. Bottom shell; 302. Mounting base; 303. Support rod; 4. Oil replenishment pump; 401. Oil replenishment pipe; 5. Reed switch type oil level switch; 6. Oil replenishment trough; 7. First mounting hole; 8. Second mounting hole; 9. Connecting plate; 10. Slot; 11. Fixing plate; 12. Counterweight. Detailed Implementation

[0023] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0024] It should be noted that many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0025] Furthermore, it should be understood in the description of this utility model that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; 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. However, specifying a direct connection indicates that the two main bodies at the connection point are not connected by an intermediate structure, but are simply connected to form a whole through a connecting structure. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0027] In this utility model, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," 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. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0028] In this utility model, such as Figure 1-4 As shown, a dual-pump fuel tank is provided, including a fuel tank body 1 with an oil storage chamber. One end of the bottom wall of the fuel tank body 1 is recessed to form an oil collection groove 2, and the other end forms an oil replenishment area. The dual-pump fuel tank also includes: an oil transfer pump 3, installed on the fuel tank body 1 at the position of the oil collection groove 2, with the oil inlet end of the oil transfer pump 3 located at the bottom of the oil collection groove 2 and the oil outlet end extending to the outside of the fuel tank body 1; a liquid level sensor, installed on the fuel tank body 1, which can monitor the liquid level of the oil collection groove 2; and an oil replenishment pump 4, located on the fuel tank body 1, with the oil inlet end located in the oil replenishment area and the oil outlet end located in the oil collection groove 2.

[0029] When using the dual-pump fuel tank of this invention, during vehicle ascent and descent, when the fuel collection trough 2 is at its low position, the fuel in the tank flows towards one end of the collection trough 2, allowing the fuel pump 3 to supply fuel normally. When the fuel collection trough 2 is at its high position, some fuel remains in the collection trough 2, while some flows obliquely to the refueling area. When the fuel level in the collection trough 2 is lower than a set level one, the refueling pump 4 starts to pump the fuel from the refueling area into the collection trough 2. When the fuel level in the collection trough 2 is higher than a set level two, the refueling pump 4 stops operating. The set level two is higher than the set level one.

[0030] This invention relates to a dual-pump fuel tank. By incorporating an oil collection trough 2, the fuel stored in the tank can be collected and pumped into the trough 2 when the vehicle is traveling on a flat road. This improves the fuel delivery stability of the fuel pump 3 at low fuel levels and also enhances the utilization efficiency of the fuel stored in the tank. When the vehicle is traveling on a slope, the replenishment pump 4 can replenish the fuel stored in the replenishment area of ​​the tank to the oil collection trough 2, thereby improving the stability of the fuel supply.

[0031] In the illustrated embodiment, more specifically regarding the structure of this utility model, the liquid level sensor is configured as a reed switch type oil level switch 5; the oil pump 3 includes a bottom shell 301 with an oil inlet end, a mounting base 302 installed on the top wall of the oil tank body 1, and a support rod 303 connecting the bottom shell 301 and the mounting base 302, and the reed switch type oil level switch 5 is disposed between the bottom shell 301 and the mounting base 302.

[0032] As shown in the figure, a reed switch type oil level switch 5 is installed on the oil pump 3, thus completing the installation of the oil pump and the liquid level sensor simultaneously. In the illustrated embodiment, the oil outlet pipe of the oil pump extends from the mounting base to the outside of the oil tank body, and the mounting base is provided with the oil outlet end of the oil pump.

[0033] Regarding the start and stop of the replenishing pump 4, in a preferred embodiment, the reed switch 5 can be directly connected to the start and stop of the replenishing pump 4. The reed switch 5 starts the replenishing pump 4 when it detects the set liquid level one and stops the replenishing pump 4 when it detects the set liquid level two.

[0034] In an alternative embodiment, the level sensor can also be connected to a control processor, which starts and stops the replenishment pump 4 based on the level signal monitored by the level sensor.

[0035] In the illustrated embodiment, to further specify the structure of this utility model, the bottom wall of the oil tank body is recessed in the oil replenishment area to form an oil replenishment groove 6, and the oil inlet end of the oil replenishment pump 4 is located at the bottom of the oil replenishment groove 6; the bottom wall of the oil replenishment groove 6 is higher than the bottom wall of the oil collection groove 2.

[0036] As shown in the figure, an oil replenishment tank 6 is provided to facilitate the collection of oil from the replenishment area to the oil replenishment tank 6, thereby further improving the utilization efficiency of the oil stored in the tank and preventing the oil replenishment pump 4 from dry-suction. Moreover, the bottom wall of the oil replenishment tank 6 is higher than the bottom wall of the oil collection tank 2, which can further increase the utilization space on the lower side of the tank.

[0037] In the illustrated embodiment, more specifically regarding the structure of this utility model, the oil tank body has a first mounting hole 7 on the top wall above the oil replenishment area, and a second mounting hole 8 is provided on the upper side of the oil collection trough 2; the oil replenishment pump 4 is provided with a deformable oil replenishment pipe 401, and the end of the oil replenishment pipe 401 away from the oil replenishment pump 4 forms the oil outlet end of the oil replenishment pump 4; the oil tank body 1 has a connecting part at the position of the oil collection trough 2, and the oil outlet end of the oil replenishment pipe 401 is inserted and fixed in the connecting part.

[0038] As shown in the figure, by setting two mounting holes, when assembling the oil pump 3 and the replenishing pump 4, the replenishing pump 4 can be installed in the first mounting hole 7 first, so that the replenishing pipe 401 enters the inside of the oil tank. At this time, the replenishing pipe 401 can be moved by inserting a clamp or other tool through the second mounting hole 8 to fix the oil outlet end of the replenishing pipe 401 to the connection part. Then, the oil pump 3 is installed in the second mounting hole 8 to complete the installation.

[0039] With this setup, the oil replenishment pipe 401 can be easily installed and removed inside the oil tank, facilitating the assembly of the oil replenishment pump 4.

[0040] In the illustrated embodiment, the specific installation of the replenishing pump 4 and the delivery pump 3 is further described as follows: the top of the replenishing pump 4 and the delivery pump 3 adopts the same mounting base 302 structure. The mounting base 302 can be fixed to the first mounting hole 7 and the second mounting hole 8 at the corresponding positions by means of bolt installation, snap-fit, threaded connection, etc.

[0041] In the illustrated embodiment, for the structure of this utility model, the connecting part is set as a connecting plate 9, the connecting plate 9 has a slot 10 extending through its top, and the oil outlet end of the oil replenishment pipe 401 is inserted into the slot 10.

[0042] like Figure 2 and 3 As shown, by setting the slot 10, the oil supply pipe 401 can be positioned laterally when installing the oil outlet end of the oil supply pipe 401, thereby improving the installation stability of the oil outlet end of the oil supply pipe 401.

[0043] In the illustrated embodiment, more specifically, regarding the structure of this utility model, the oil replenishment pipe 401 is interference-fitted into the connecting part.

[0044] In an optional embodiment, the oil outlet of the oil replenishment pipe 401 is magnetically connected to the connecting part. Specifically, the connecting plate 9 and the fixing plate 11 can be magnetically connected.

[0045] exist Figure 2 and Figure 4In the embodiment shown, more specifically, the oil outlet end of the oil supply pipe 401 is provided with two spaced-apart fixing plates 11, and the space between the two fixing plates 11 forms the insertion space of the connecting part.

[0046] like Figure 2 As shown, two fixing plates 11 are provided on the oil replenishment pipe 401. The edges of the fixing plates 11 are provided with abutment protrusions. The two fixing plates 11 are press-fitted against the connecting plate 9 to complete the fixing of the oil replenishment pipe 401.

[0047] In optional embodiments, such as Figure 4 As shown, in order to improve the fixed stability of the oil outlet end of the oil replenishment pipe 401, it can also be configured such that the oil outlet end of the oil replenishment pipe 401 is provided with a counterweight 12, and the counterweight 12 is located on the side of the connection part away from the oil replenishment pump 4.

[0048] By setting a counterweight 12, the oil outlet end of the oil replenishment pipe 401 can be prevented from floating, thereby further improving the stability of the oil outlet end of the oil replenishment pipe 401.

[0049] In the illustrated embodiment, more specifically, the connecting plate 9 is configured to extend from bottom to top in a direction away from the oil replenishment pump 4, and the two side edges of the connecting plate 9 extend to the center of the oil collection groove 2 on the side away from the oil replenishment area.

[0050] like Figure 2 As shown, the upper edge of the connecting plate 9 is inclined towards the inside of the oil collection tank 2, which can fix the oil outlet end of the oil replenishment pipe 401 and guide it to the inside of the oil collection tank 2. Moreover, when the oil in the oil collection tank 2 fluctuates towards the oil replenishment tank 6 during vehicle movement, the connecting plate 9 guides the oil back to the oil collection tank 2. Furthermore, the inclined connecting plate 9 can further increase the resistance to the upward movement of the fixing plate 11, thereby further improving the installation stability of the oil replenishment pipe 401.

[0051] In the illustrated embodiment, more specifically, the upper edge of the connecting plate 9 gradually decreases from the middle to both sides.

[0052] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

[0053] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A dual-pump oil tank, characterized in that, The tank includes a fuel tank body with an oil storage chamber, wherein one end of the bottom wall of the fuel tank body is recessed to form an oil collection groove and the other end forms an oil replenishment area; the dual-pump fuel tank also includes: An oil pump is installed on the oil tank body at the location of the oil collection trough. The oil inlet of the oil pump is located at the bottom of the oil collection trough, and the oil outlet extends to the outside of the oil tank body. A liquid level sensor is installed on the oil tank body, and the liquid level sensor can monitor the liquid level in the oil collection tank; A replenishing pump is installed on the oil tank body, with the inlet end of the replenishing pump located in the replenishing area and the outlet end located in the oil collection trough.

2. The dual-pump oil tank according to claim 1, characterized in that, The liquid level sensor is configured as a reed switch type oil level switch; The oil pump includes a bottom shell with an oil inlet end, a mounting base installed on the top wall of the oil tank body, and a support rod connected between the bottom shell and the mounting base. The reed switch is disposed between the bottom shell and the mounting base.

3. A dual-pump oil tank according to claim 1, characterized in that, The bottom wall of the oil tank body is recessed in the oil replenishment area to form an oil replenishment groove, and the oil inlet end of the oil replenishment pump is located at the bottom of the oil replenishment groove. The bottom wall of the oil replenishment tank is higher than the bottom wall of the oil collection tank.

4. A dual-pump oil tank according to claim 1 or 3, characterized in that, The oil tank body is provided with a first mounting hole on the top wall above the oil replenishment area, and a second mounting hole is provided on the upper side of the oil collection trough; The replenishing pump is equipped with a deformable replenishing pipe, and the end of the replenishing pipe away from the replenishing pump forms the oil outlet end of the replenishing pump. The oil tank body is provided with a connecting part at the oil collection trough position, and the oil outlet end of the oil replenishment pipe is inserted and fixed at the connecting part.

5. A dual-pump oil tank according to claim 4, characterized in that, The connecting part is configured as a connecting plate, and the connecting plate has a slot extending through its top, and the oil outlet end of the oil replenishment pipe is inserted into the slot.

6. A dual-pump oil tank according to claim 4, characterized in that, The oil replenishment pipe is interference-fitted into the connection part, and / or, The oil outlet end of the oil replenishment pipe is magnetically connected to the connection part.

7. A dual-pump oil tank according to claim 6, characterized in that, The oil outlet end of the oil supply pipe is provided with two spaced-apart fixing plates, and the space between the two fixing plates forms the insertion space for the connecting part.

8. A dual-pump oil tank according to claim 5, characterized in that, The oil outlet end of the oil replenishment pipe is equipped with a counterweight, which is located on the side of the connection that is away from the oil replenishment pump.

9. A dual-pump oil tank according to claim 5, characterized in that, The connecting plate is configured to extend from bottom to top in a direction away from the oil replenishment pump, and the two side edges of the connecting plate extend to the center of the oil collection tank on the side away from the oil replenishment area.

10. A dual-pump oil tank according to claim 9, characterized in that, The upper edge of the connecting plate gradually decreases from the middle to both sides.

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