Fuel pump with brushless gear structure

Abstract

The utility model provides a fuel pump with a brushless gear structure, which comprises a shell provided with an oil inlet end and an oil outlet end; the oil pumping unit is arranged at the oil inlet end, the oil pumping unit comprises an oil inlet disc and an oil outlet disc, an oil pumping disc is arranged between the oil inlet disc and the oil outlet disc, a rotating part is arranged on the oil pumping disc, and a transmission disc is connected to the rotating part in a clamped mode; and the driving unit is arranged in the shell, and the driving unit comprises a rotating shaft. According to the fuel pump with the brushless gear structure, the fuel pumping unit is utilized, the fuel pumping unit passes through the rotating piece, the rotating piece is in a gear shape, when fuel in the fuel tank needs to be pumped, the driving unit controls the rotating shaft to be in linkage with the rotating piece to rotate, and at the moment, the rotating piece is located in the fuel pumping disc to rotate so as to form negative pressure; in this way, fuel oil is pumped into the shell from the oil inlet end and then continuously supplied into the fuel oil machine from the oil outlet end, and the phenomenon that oil supply is interrupted is reduced.

Description

Technical Field

[0001] This utility model relates to the field of oil pump technology, and more specifically to a brushless gear structure fuel pump. Background Technology

[0002] Fuel pumps are typically installed in a car's fuel system. They draw fuel from the fuel tank and deliver it to the fuel engine at a certain pressure, thus maintaining the fuel flow and pressure required for the engine to operate normally.

[0003] The fuel pump uses an electric motor as a drive source to control the rotation of the blades, which in turn pushes the fuel in the tank to supply fuel. However, if the fuel contains impurities, long-term use will cause wear on the blades, which will affect the fuel pump's supply pressure and easily lead to intermittent fuel supply, making the engine run unstable and unable to operate normally. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems in existing technologies and to solve the problem of insufficient oil supply that often occurs in vane-type oil pumps.

[0005] To achieve the above objectives, this utility model can be implemented through the following technical solution: a brushless gear structure fuel pump, comprising:

[0006] A housing, wherein an oil inlet and an oil outlet are provided on the housing;

[0007] An oil pumping unit is provided at the oil inlet end, and the oil pumping unit includes an oil inlet plate and an oil outlet plate. An oil pumping plate is provided between the oil inlet plate and the oil outlet plate. A rotating part is provided on the oil pumping plate, and a transmission plate is engaged on the rotating part.

[0008] A drive unit is disposed within the housing. The drive unit includes a rotating shaft that engages with the transmission disc.

[0009] In this embodiment of the utility model, the oil inlet plate has a second opening and the oil outlet plate has a first opening, and the positions of the first opening and the second opening are offset.

[0010] In this embodiment of the utility model, a guide plate is provided on the first opening.

[0011] In this embodiment of the utility model, the oil inlet plate is provided with a first groove, and the oil outlet plate is provided with a locking block that engages with the first groove.

[0012] In this embodiment of the utility model, a support cover is provided on the oil outlet plate, and a limiting platform is provided on the support cover;

[0013] The oil outlet plate is provided with a frustum that engages with the limiting platform.

[0014] In this embodiment of the utility model, the oil outlet plate is provided with protrusions arranged in a circumferential array, and the protrusions engage with the housing.

[0015] In this embodiment of the utility model, the oil inlet plate is provided with a protrusion, which cooperates with the rotating component.

[0016] In this embodiment of the utility model, the oil inlet plate has a second groove arranged in a circumferential array.

[0017] In this embodiment of the utility model, the oil pump plate is disposed at the eccentric position of the oil outlet plate.

[0018] In this embodiment of the utility model, a top cover is snapped onto the housing, and an electrode connector is provided on the top cover.

[0019] Compared with the prior art, the advantages of this application are: it utilizes a pump unit, which has a rotating component that is gear-shaped. When fuel needs to be drawn from the fuel tank, the drive unit controls the rotating shaft to rotate in conjunction with the rotating component. At this time, the rotating component rotates within the pump plate to create a negative pressure, thereby drawing fuel from the inlet end into the housing and then continuously supplying it to the fuel engine from the outlet end, thus reducing the phenomenon of intermittent fuel supply. Attached Figure Description

[0020] Figure 1 It is a half-section of the internal parts assembly plane structure of the fuel pump;

[0021] Figure 2 This is a schematic diagram showing the disassembled structure of the parts in the oil pump unit;

[0022] Figure 3 This is a schematic diagram of the disassembled structure of the bottom parts of the oil pump unit;

[0023] Figure 4 This is a schematic diagram of the overall assembly structure of the oil pump;

[0024] Figure 5 This is a schematic diagram of the internal structure of the pump body after the removal of the internal parts.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Housing; 2. Top cover; 21. Electrode connector; 3. Oil outlet; 4. Drive unit; 41. Rotating shaft; 5. Oil inlet; 6. Pump unit; 61. Support cover; 611. Limiting platform; 62. Oil outlet plate; 621. Frustum; 622. First opening; 623. Guide plate; 624. Protrusion; 625. Locking block; 63. Rotating component; 64. Pump plate; 65. Transmission plate; 651. Slot; 66. Oil inlet plate; 661. Second opening; 662. First groove; 663. Protrusion platform; 664. Second groove. Detailed Implementation

[0027] The following are specific embodiments of the present invention, and the technical solution of the present invention will be further described in conjunction with the accompanying drawings.

[0028] like Figure 1-5 As shown, a brushless gear fuel pump includes:

[0029] The housing 1 is provided with an oil inlet end 5 and an oil outlet end 3.

[0030] The oil pumping unit 6 is located at the oil inlet end 5 and includes an oil inlet plate 66 and an oil outlet plate 62. An oil pumping plate 64 is provided between the oil inlet plate 66 and the oil outlet plate 62. A rotating component 63 is provided on the oil pumping plate 64. A transmission plate 65 is engaged on the rotating component 63. The transmission plate 65 has a slot 651 that engages with the transmission component to facilitate the linkage and rotation of the transmission plate 65 and the transmission component. The cross-section of the transmission component is toothed. The toothed design reduces the influence of impurities in the fuel and improves the oil pumping effect.

[0031] The drive unit 4 is disposed inside the housing 1. The drive unit 4 includes a rotating shaft 41, which engages with the transmission disk 65.

[0032] Specifically, the specific flow direction of the fuel is as follows: Figure 1As shown, fuel flows into the housing 1 through the inlet end 5 (end A) and out through the outlet end 3 (end B). A pumping unit 6 and a drive unit 4 are located between ends A and B to control the fuel flow rate and pressure. The drive unit 4 is a brushless motor, whose output end engages with the rotating shaft 41. The brushless motor improves the efficiency of power transmission in the fuel pump, and its brushless design reduces wear on mechanical parts, thus extending the motor's lifespan. When the fuel pump is pumping, the drive unit 4 controls the rotating shaft 41 to link the transmission disc 65 and the rotating component 63. As the rotating component 63 rotates within the pump plate 64, the gap between the rotating component 63 and the pump plate 64 changes from large to small and then from small to large, creating a negative pressure within the pump plate 64. This negative pressure draws fuel from the fuel tank. Consequently, the higher the rotational speed of the drive unit 4, the greater the negative pressure and the stronger the fuel pumping pressure. By controlling the rotational speed of the drive unit 4 according to the engine's operating requirements, the pumping pressure of the fuel pump is controlled, thereby improving the stability and continuity of fuel supply and reducing the occurrence of insufficient fuel pressure or intermittent fuel supply.

[0033] As a further embodiment of this utility model, the oil inlet plate 66 has a second opening 661, and the oil outlet plate 62 has a first opening 622. The positions of the first opening 622 and the second opening 661 are staggered. Both the first opening 622 and the second opening 661 are fan-shaped, and their positions are misaligned (e.g., ...). Figure 2 As shown), this allows the oil pump plate 64 to create a negative pressure to draw fuel from the second opening 661 and apply a certain pressure to the fuel to pump it out from the first opening 622.

[0034] As a further embodiment of this utility model, a guide plate 623 is provided on the first opening 622. The guide plate 623 is blade-shaped and is provided on the first opening 622. At least two sets of guide plates 623 are evenly distributed in the first opening 622 to guide the flow direction of fuel during the oil pumping process and improve the flow effect of fuel.

[0035] As a further embodiment of this utility model, the oil inlet plate 66 is provided with a first groove 662, and the oil outlet plate 62 is provided with a locking block 625 that engages with the first groove 662. The design of the locking block 625 and the first groove 662 ensures the assembly position of the oil inlet plate 66 relative to the oil outlet plate 62, so that the second opening 661 of the oil inlet plate 66 and the first opening 622 of the oil outlet plate 62 are misaligned.

[0036] As a further embodiment of this utility model, a support cover 61 is provided on the oil outlet plate 62, a limiting platform 611 is provided on the support cover 61, and a frustum 621 that engages with the limiting platform 611 is provided on the oil outlet plate 62. The support cover 61 is located between the drive unit 4 and the pumping unit 6, so as to allow fuel to flow from the pumping unit 6 into the housing 1. The support cover 61 serves as a fuel guide. The design of the limiting platform 611 and the frustum 621 ensures that the oil outlet plate 62 and the support cover 61 remain fixed together when the fuel pump is running.

[0037] As a further embodiment of this utility model, the oil outlet plate 62 is provided with protrusions 624 arranged in a circumferential array. The protrusions 624 engage with the housing 1. The circumferential array is evenly distributed along the axis of the oil outlet plate 62 to the cylindrical outer wall of the oil outlet plate 62. The protrusions 624 improve the assembly effect between the oil outlet plate 62 and the housing 1, and also play a certain role in positioning and fixing.

[0038] As a further embodiment provided in this utility model, the oil inlet plate 66 is provided with a protrusion 663, which cooperates with the rotating member 63. The transmission plate 65 rotates within the protrusion 663, which supports the rotating member 63 to rotate within the housing 1, thereby improving the rotational stability of the rotating member 63.

[0039] As a further embodiment of this utility model, the oil inlet plate 66 is provided with a second groove 664 in a circumferential array. The second groove 664 serves as a positioning and connection function. An oil inlet connector and an oil inlet pipe provided on the oil inlet connector can be connected through the second groove 664, thereby improving the connection effect between the oil inlet connector and the oil inlet plate 66.

[0040] As a further embodiment of this utility model, the oil pump plate 64 is disposed at the eccentric position of the oil outlet plate 62. The toothed groove in the oil pump plate 64 is adapted to the rotating member 63. As the rotating member 63 rotates, the gap between the outer wall of the rotating member 63 and the toothed groove of the oil pump plate 64 will decrease and then increase, thereby generating a negative pressure inside the oil pump plate 64, thereby drawing fuel from the fuel tank.

[0041] As a further embodiment of this utility model, a top cover 2 is snapped onto the housing 1, and an electrode connector 21 is provided on the top cover 2. The electrode connector 21 is connected to an external control and power line to control the switch of the fuel pump and the rotation speed of the rotating shaft 41 in the drive unit 4.

[0042] The above-described technical solution of this utility model addresses the problem that existing technical solutions are too simplistic and provides a solution that is significantly different from existing technologies. The parts not covered in this application's technical solution are the same as or can be implemented using existing technologies, and will not be described in detail here.

[0043] The technical solutions in the above embodiments have clearly and completely described the content of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

Claims

1. A brushless gear structure fuel pump characterized by comprising: The utility model relates to a kind of oil pump, including: Shell, oil inlet end and oil outlet end are arranged on the shell; Pump oil unit, the pump oil unit is arranged in the oil inlet end, and the pump oil unit includes oil inlet disc and oil outlet disc, and pump oil disc is arranged between the oil inlet disc and the oil outlet disc, rotating part is arranged on the pump oil disc, and transmission disc is clamped on the rotating part; Driving unit, the driving unit is arranged in the shell, and the driving unit includes rotating shaft, and the rotating shaft is clamped with the transmission disc.

2. A brushless gear structure fuel pump according to claim 1, characterized in that, Second opening is opened in the oil inlet disc, and first opening is opened in the oil outlet disc, and the position of the first opening is staggered with the second opening.

3. A brushless gear structure fuel pump according to claim 2, characterized in that, Flow guide plate is arranged on the first opening.

4. A brushless gear structure fuel pump according to claim 1, wherein First recess is opened in the oil inlet disc, and clamping block is arranged on the oil outlet disc and clamped with the first recess.

5. A brushless gear structure fuel pump according to claim 4, wherein Support cover is arranged on the oil outlet disc, and limiting table is arranged on the support cover; Wherein, the oil outlet disc is arranged with circular table and is clamped with the limiting table.

6. A brushless gear structure fuel pump according to claim 1, wherein Convex part is arranged in circumferential array on the oil outlet disc, and the convex part is clamped with the shell.

7. A brushless gear structure fuel pump according to claim 1, wherein Convex table is arranged on the oil inlet disc, and the convex table is matched with the rotating part.

8. A brushless gear structure fuel pump according to claim 7, wherein Second recess is opened in circumferential array on the oil inlet disc.

9. A brushless gear structure fuel pump according to claim 1, wherein The pump oil disc is arranged at eccentric position of the oil outlet disc.

10. A brushless gear structure fuel pump according to claim 1, wherein Upper cover is clamped on the shell, and electrode plug connector is arranged on the upper cover.

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