Multifunctional upper cover assembly of motorcycle fuel pump

Abstract

The utility model relates to motorcycle fuel pump technical field, especially a kind of motorcycle fuel pump multifunctional upper cover assembly, including upper cover body, upper cover body upper end surface is equipped with oil outlet nozzle, and upper cover body lower end is equipped with the first fuel flow passage that is communicated with oil outlet nozzle, and the constant pressure valve is equipped in the lower end of first fuel flow passage, and the lower end of first fuel flow passage is detachably installed with the fixing cover that will constant pressure valve be fixed in the first fuel flow passage, and the second fuel flow passage is equipped in the middle part of first fuel flow passage and extends to one side, and the pump core fixing seat is equipped on the end of second fuel flow passage away from first fuel flow passage, and pump core fixing seat is communicated with second fuel flow passage, and upper cover body upper end surface is equipped with the controller that is electrically connected with fuel pump, the utility model has the beneficial effects that: provide a kind of motorcycle fuel pump multifunctional upper cover assembly capable of improving integration degree.

Description

Technical Field

[0001] This utility model relates to the field of motorcycle fuel pump technology, specifically to a multi-functional upper cover assembly for a motorcycle fuel pump. Background Technology

[0002] Fuel pump is a professional term in the auto and motorcycle parts industry. It is one of the basic components of the fuel injection system of electronic fuel injection vehicles. Currently, most motorcycle fuel pumps are located inside the fuel tank, which delivers fuel from the tank to the engine.

[0003] For example, a motorcycle bottom-mounted fuel system with a constant pressure valve structure, disclosed in publication number "CN217761161U", includes a top cover with a fixing part on it. The upper end of the fixing part has a mounting part with its axis parallel to the upper surface of the top cover. One end of the mounting part extends outward to form two opposing and spaced extension walls, at least one of which has a drain port. An electronic fuel injection pump is installed in the mounting part, with the pump core outlet facing and extending to the upper part of the mounting area. A constant pressure valve is installed in the mounting area and below the pump core outlet, with the axis of the constant pressure valve inlet parallel to the axis of the pump core outlet vertically. A fixing cover is installed on the end of the two extension walls away from the mounting part and has interfaces that connect to the pump core outlet and the constant pressure valve inlet, respectively.

[0004] However, the aforementioned documents indicate that the constant pressure valve, pump core, and mounting cover require more piping for connection, resulting in a large footprint, poor adaptability, and potential interference, especially in vehicles with small fuel tanks. Furthermore, the degree of integration is relatively low. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a multi-functional top cover assembly for a motorcycle fuel pump that improves the degree of integration, in order to address the shortcomings of the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-functional upper cover assembly for a motorcycle fuel pump, comprising an upper cover body, characterized in that: an oil outlet is provided on the upper end face of the upper cover body, a first fuel flow channel communicating with the oil outlet is provided on the lower end of the upper cover body, a constant pressure valve is provided in the lower end of the first fuel flow channel, and a fixing cover for fixing the constant pressure valve in the first fuel flow channel is detachably installed on the lower end of the first fuel flow channel, a second fuel flow channel is provided extending to one side from the middle of the first fuel flow channel, a pump core fixing seat is provided on the end of the second fuel flow channel away from the first fuel flow channel, the pump core fixing seat is communicating with the second fuel flow channel, and a controller electrically connected to the fuel pump is provided on the upper end face of the upper cover body.

[0007] The above technical solution integrates the constant pressure valve with the fuel pump core, top cover, and other components into a single structure. The constant pressure valve can directly utilize the first fuel passage within the top cover for fuel pressure stabilization and distribution, reducing independent connecting parts and complex piping layouts. After fuel exits from the pump core, it quickly enters the constant pressure valve for pressure regulation and is then directly output through the fuel outlet on the top cover. This streamlined process eliminates unnecessary detours, resulting in a compact fuel pump assembly that makes efficient use of space. Furthermore, it facilitates subsequent maintenance and repair of all components. For example, if the constant pressure valve malfunctions, only the mounting cover needs to be removed for inspection and replacement, reducing maintenance difficulty and costs.

[0008] A further feature of this invention is that the pump core mounting base is provided with a chamber adapted for the installation of a fuel pump, and the chamber is connected to the second fuel flow channel.

[0009] Using the above technical solution: when the fuel pump core is installed to the pump core mounting base through the chamber, the pump core pressurizes the fuel, outputs it through its output end, and delivers it to the first fuel flow channel through the second fuel flow channel, and finally delivers it to the engine injector through the top cover nozzle.

[0010] A further feature of this invention is that a reinforcing rib is provided between the lower end of the upper cover body and the pump core fixing seat, and a plurality of snap-fit ​​blocks that can be snapped together with the fuel pump are provided at intervals on the outer wall of the pump core fixing seat.

[0011] By adopting the above technical solution, the strength and stability of the pump core fixing seat can be further improved by providing reinforcing ribs between the upper cover body and the pump core fixing seat, thus ensuring the stability of the fuel pump after installation.

[0012] A further feature of this invention is that: the fixed cover has an abutment groove that can abut against the constant pressure valve; the outer wall of the fixed cover has a connecting part extending upward on opposite sides; the connecting part has a connecting groove; and the outer wall of the first fuel flow channel has a locking block corresponding to the connecting groove.

[0013] The above technical solution is adopted: by setting the connecting part, the connecting groove on the connecting part and the locking block on the outer wall of the first fuel flow channel, the locking block can be squeezed into the connecting groove when the fixing cover is installed on the first fuel flow channel, thus completing the installation of the fixing cover.

[0014] A further feature of this invention is that: an installation part is provided at the upper end of the upper cover body, and an installation hole for installing the controller is provided through the installation part; a positioning groove is provided on the outer wall of the installation part; and a positioning block corresponding to the positioning groove is provided on the controller, and the positioning block can be located in the positioning groove.

[0015] The above technical solution is adopted: by setting the positioning groove and positioning block, when the controller is installed on the upper cover body, the positioning block is inserted into the positioning groove to play a positioning role, which facilitates the assembly by the staff.

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is an exploded view of the present invention.

[0019] Figure 3 This is a schematic diagram of the fixed base structure of this utility model.

[0020] Figure 4 This is a schematic diagram of the upper cover body structure of this utility model.

[0021] Figure 5 These are exploded views of this utility model from different perspectives.

[0022] Labeling: Top cover body 1, first fuel flow channel 11, fixing cover 111, abutment groove 111a, connecting part 111b, connecting groove 111c, locking block 112, second fuel flow channel 12, pump core fixing seat 121, chamber 121a, reinforcing rib 121b, snap block 121c, mounting part 13, mounting hole 131, positioning groove 132, fuel outlet 2, controller 3, positioning block 31. Detailed Implementation

[0023] In the accompanying drawings of this specific embodiment and the disclosed embodiments, only the structures involved in the disclosed embodiments are involved. Other structures can be referred to with ordinary design. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of this utility model, they are protected by patent law.

[0024] like Figure 1-5 The above-displayed multi-functional top cover assembly for a motorcycle fuel pump includes a top cover body 1. The upper end of the top cover body 1 is provided with a fuel outlet 2. The lower end of the top cover body 1 is provided with a first fuel flow channel 11 communicating with the fuel outlet 2. A constant pressure valve (not shown in the figure) is provided in the lower end of the first fuel flow channel 11, and a fixing cover 111 for fixing the constant pressure valve in the first fuel flow channel 11 is detachably installed in the lower end of the first fuel flow channel 11. A second fuel flow channel 12 extends to one side from the middle of the first fuel flow channel 11. A pump core fixing seat 121 is provided on the end of the second fuel flow channel 12 away from the first fuel flow channel 11. The pump core fixing seat 121 communicates with the second fuel flow channel 12. A controller 3 electrically connected to the fuel pump is provided on the upper end of the top cover body 1.

[0025] like Figure 2 , 4 The pump core mounting base 121 shown has a chamber 121a adapted to the installation of the fuel pump, and the chamber 121a is connected to the second fuel flow channel 12; a reinforcing rib 121b is provided between the lower end of the upper cover body 1 and the pump core mounting base 121, and a number of snap-fit ​​blocks 121c that can be snapped together with the fuel pump are provided at intervals on the outer wall of the pump core mounting base 121.

[0026] like Figure 2-3 The fixed cover 111 shown has an abutment groove 111a that can abut against the constant pressure valve. The outer wall of the fixed cover 111 has a connecting part 111b extending upward on opposite sides. The connecting part 111b has a connecting groove 111c. The outer wall of the first fuel flow channel 11 has a locking block 112 corresponding to the connecting groove 111c.

[0027] like Figure 5 The upper end of the cover body 1 shown is provided with a mounting part 13. The mounting part 13 is provided with a mounting hole 131 for mounting the controller 3. The outer wall of the mounting part 13 is provided with a positioning groove 132. The controller 3 is provided with a positioning block 31 corresponding to the positioning groove 132. The positioning block 31 can be located in the positioning groove 132.

[0028] In use, this utility model integrates the constant pressure valve with the fuel pump core, top cover, and other components into a single structure. The constant pressure valve can directly utilize the first fuel passage within the top cover for fuel pressure stabilization and distribution, reducing the need for independent connecting parts 111b and complex piping layouts. After fuel is output from the pump core, it quickly enters the constant pressure valve for pressure regulation and is then directly output through the fuel outlet of the top cover. The intermediate steps are simple and smooth, without unnecessary detours. This simple connection method makes the entire fuel pump assembly compact and makes efficient use of space. It also facilitates the later maintenance and repair of each component. For example, when the constant pressure valve malfunctions, only the fixing cover 111 needs to be disassembled to inspect and replace the constant pressure valve, reducing the difficulty and cost of maintenance. In addition, the controller 3 adjusts the pump core speed according to ECU commands to match the fuel demand under different operating conditions. Installing the controller 3 on the top cover body 1 can improve the performance of the fuel pump.

Claims

1. A multi-functional cover assembly for a motorcycle fuel pump, comprising a cover body, characterized in that: The upper end face of the cover body is provided with an oil outlet nozzle, and the lower end of the cover body is provided with a first fuel flow channel communicating with the oil outlet nozzle. A constant pressure valve is provided in the lower end of the first fuel flow channel, and a fixing cover for fixing the constant pressure valve in the first fuel flow channel is detachably installed in the lower end of the first fuel flow channel. A second fuel flow channel is provided extending to one side from the middle of the first fuel flow channel. A pump core fixing seat is provided on the end of the second fuel flow channel away from the first fuel flow channel. The pump core fixing seat communicates with the second fuel flow channel. The upper end face of the cover body is provided with a controller electrically connected to the fuel pump.

2. The multi-functional upper cover assembly for a motorcycle fuel pump according to claim 1, characterized in that: The pump core mounting base is provided with a chamber adapted for the installation of a fuel pump, and the chamber is connected to the second fuel flow channel.

3. The multi-functional upper cover assembly for a motorcycle fuel pump according to claim 2, characterized in that: A reinforcing rib is provided between the lower end of the upper cover body and the pump core fixing seat, and a number of snap-fit ​​blocks that can be snapped together with the fuel pump are provided at intervals on the outer wall of the pump core fixing seat.

4. The multi-functional upper cover assembly for a motorcycle fuel pump according to claim 3, characterized in that: The fixed cover is provided with an abutment groove that can abut against the constant pressure valve. The outer wall of the fixed cover is provided with connecting parts extending upward on opposite sides. The connecting parts are provided with connecting grooves. The outer wall of the first fuel flow channel is provided with a locking block corresponding to the connecting groove.

5. The multi-functional upper cover assembly for a motorcycle fuel pump according to claim 4, characterized in that: The upper end of the cover body is provided with a mounting part, and the mounting part is provided with a mounting hole for mounting the controller. The outer wall of the mounting part is provided with a positioning groove, and the controller is provided with a positioning block corresponding to the positioning groove. The positioning block can be located in the positioning groove.

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