Motorcycle fuel pump assembly

Abstract

The utility model relates to a motorcycle fuel pump assembly, including the cover, the plug on the cover, the installation sleeve below the cover, the pressure regulating valve unit on the installation sleeve, the motor in the installation sleeve, the support below the installation sleeve and the filter screen and oil level sensor on the support, the pressure regulating valve unit includes the antifriction sheet type pressure regulating valve. Adopt above -mentioned scheme, provide a kind of motorcycle fuel pump assembly that help to prolong the service life of pressure regulating valve.

Description

Technical Field

[0001] This utility model relates to a motorcycle fuel pump assembly. Background Technology

[0002] The motorcycle fuel pump is a key component in the motorcycle fuel supply system. Its main function is to draw fuel from the fuel tank and deliver it to the engine's fuel injection system or carburetor at appropriate pressure. The fuel pump ensures that the engine can obtain the required amount and pressure of fuel under various operating conditions, thereby achieving an efficient and stable combustion process.

[0003] The ball-type pressure valve is an important component in the fuel pump assembly. Its function is to maintain a stable pressure level in the fuel system. However, due to the fact that the manufacturing precision of domestic factories cannot meet the import standards, the product pressure is insufficient and cannot supply fuel normally. For example, if the manufacturing precision does not meet the design requirements, the gap between the internal parts of the pressure valve may be too large, resulting in fuel leakage or failure to maintain the required pressure level, leading to insufficient fuel supply. In addition, lower quality materials may not be as oil-resistant as original imported parts. They are more likely to wear, corrode or other forms of aging over time, affecting their sealing and working performance and causing pressure drop.

[0004] Therefore, how to improve the stability of pressure valves during use has become a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a motorcycle fuel pump assembly that helps to extend the service life of the pressure regulating valve.

[0006] To achieve the above objectives, the present invention provides the following technical solution: including a cover, a plug located on the cover, a mounting sleeve located below the cover, a pressure regulating valve unit located on the mounting sleeve, a motor located inside the mounting sleeve, a bracket located below the mounting sleeve, and a filter screen and an oil level sensor located on the bracket, wherein the pressure regulating valve unit includes a friction-reducing plate type pressure regulating valve.

[0007] The present invention is further configured such that: the pressure regulating valve unit also includes a mounting base integrally formed with the mounting sleeve and a fixing frame for mounting the friction-reducing pressure regulating valve, wherein the fixing frame and the mounting base are detachably connected.

[0008] The present invention is further configured such that: the friction-reducing pressure regulating valve includes a valve body, and the pressure regulating valve unit further includes a limiting seat located around the valve body; the limiting seat includes a first mounting sleeve and a second mounting sleeve; the second mounting sleeve is located to the left of the first mounting sleeve; mounting seats are inserted into both the first mounting sleeve and the right side of the valve body; and the second mounting sleeve abuts against the mounting sleeve.

[0009] The present invention is further configured such that: the valve body includes a limiting section located on the left side of the second mounting sleeve, the right side of the limiting section abuts against the second mounting sleeve and the left side abuts against the limiting seat.

[0010] The present invention is further configured such that: the fixing frame is made of a material that is prone to deformation and includes mounting plates on the front and rear sides and a limiting plate located between the mounting plates; the right side of the limiting plate abuts against the limiting section and the limiting plate is located on the outer periphery of the valve body; and each of the mounting plates is detachably connected to the fixing frame.

[0011] The present invention is further configured such that: limit blocks are provided on both the front and rear sides of the mounting base, and each mounting plate is provided with a limit slot corresponding to each limit block.

[0012] The present invention is further configured such that: one side of each mounting plate includes a mating horizontal plate extending in the longitudinal direction.

[0013] The present invention is further configured such that the motor is a brushed motor.

[0014] By adopting the above technical solutions, the friction damping plates are usually made of special materials or surface treatment technology, which makes their coefficient of friction lower than that of traditional ball bearing designs. This means that less wear occurs during operation, which helps to extend the service life of the pressure regulating valve. In addition, the friction damping plate design often provides a better sealing effect, reducing the possibility of leakage. Its structure is relatively simple and the resistance between moving parts is small, so it can achieve a faster pressure response speed, which is conducive to quickly adapting to changes in engine load. At the same time, due to low friction and less wear, the friction damping plate type pressure regulating valve may require less maintenance and upkeep, reducing long-term operating costs. Attached Figure Description

[0015] 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 these drawings without creative effort.

[0016] Figure 1 This is a perspective view of a specific embodiment of the present utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is an exploded view of the present invention; Figure 4 for Figure 2 A magnified view of A in the middle.

[0017] In the diagram: 1 - Cover; 2-Plug; 3-Installation sleeve; 4-Pressure regulating valve unit, 41-Friction-reducing plate type pressure regulating valve, 411-Valve body, 4111-Limit section, 42-Mounting seat, 421-Limiting block, 43-Fixing bracket, 431-Limiting disc, 432-Mounting plate, 4321-Limiting slot, 4322-Matching horizontal plate, 44-Limiting seat, 441-First mounting sleeve, 442-Second mounting sleeve; 5-Motor; 6-Staff; 7-Filter screen; 8-Oil level sensor. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figures 1-4As shown, this utility model discloses a motorcycle fuel pump assembly applicable to Yamaha series models. It includes a cover 1, a plug 2 on the cover 1, a mounting sleeve 3 below the cover 1, a pressure regulating valve unit 4 on the mounting sleeve 3, a motor 5 inside the mounting sleeve 3, a bracket 6 below the mounting sleeve 3, and a filter screen 7 and a fuel level sensor 8 on the bracket 6. When the motorcycle starts, electrical energy is transmitted to the motor 5 through the plug 2. The motor 5 drives the impeller, diaphragm, and other components to operate the fuel pump, drawing fuel from the fuel tank, purifying it through the filter screen 7, and then pressurizing it before sending it into the fuel system. During this process, the pressure regulating valve unit 4 ensures that the fuel pressure in the system remains within an appropriate range, while the fuel level sensor 8 monitors the fuel level in the tank in real time to ensure driving safety (this is prior art, not specifically shown in the figure and will not be described in detail here). (Note) The pressure regulating valve unit 4 includes a friction-reducing plate type pressure regulating valve 41. Compared to ball-type pressure valves, the precision of domestic factories cannot meet imported standards, and after about six months of use, the pressure may be insufficient, resulting in failure to supply oil normally. However, the domestically mature friction-reducing plate type pressure regulating valve 41 is selected because the friction-reducing plates usually use special materials or surface treatment technology, which makes their friction coefficient lower than that of traditional ball designs. This means that less wear occurs during operation, which helps to extend the service life of the pressure regulating valve. In addition, the friction-reducing plate design often provides a better sealing effect, reduces the possibility of leakage, and makes the use more stable. Its structure is relatively simple, and the resistance between moving parts is small, so it can achieve a faster pressure response speed, which is conducive to quickly adapting to changes in engine load. At the same time, due to low friction and less wear, the friction-reducing plate type pressure regulating valve 41 may require less maintenance and upkeep, reducing long-term operating costs.

[0020] The pressure regulating valve unit 4 also includes a mounting base 42 integrally formed with the mounting sleeve 3 and a fixing frame 43 for mounting the friction-reducing pressure regulating valve 41. The fixing frame 43 and the mounting base 42 are detachably connected by means of fastening or other methods. The integral formation of the mounting base 42 and the mounting sleeve 3 enhances the structural strength and prevents loosening or falling off due to vibration or impact. After the friction-reducing pressure regulating valve 41 is installed in the mounting base 42, the fixing frame 43 and the mounting base 42 are detachably connected, which can fix the friction-reducing pressure regulating valve 41 on the mounting sleeve 3. When maintenance is required, the friction-reducing pressure regulating valve 41 can be removed by separating the mounting base 42 and the fixing frame 43. Compared with the pressure valve with a riveting structure, this provides convenience for replacing the pressure valve.

[0021] The friction-reducing pressure regulating valve 41 includes a valve body 411, and the pressure regulating valve unit 4 also includes a limiting seat 44 located around the valve body 411. The limiting seat 44 includes a first mounting sleeve 441 and a second mounting sleeve 442. The second mounting sleeve 442 is located to the left of the first mounting sleeve 441. Mounting seats 42 are inserted into both the first mounting sleeve 441 and the right side of the valve body 411, while the second mounting sleeve 442 abuts against the mounting sleeve 3. Through the limiting design of the first mounting sleeve 441 and the second mounting sleeve 442, the position of the pressure regulating valve in the mounting sleeve 3 is ensured to be stable, thereby facilitating the detachable connection between the fixing bracket 43 and the mounting seat 42. In addition, this design tightly fixes the friction-reducing pressure regulating valve 41 in the mounting sleeve 3, saving space and facilitating the overall miniaturization design of the fuel pump.

[0022] The valve body 411 includes a limiting section 4111 located on the left side of the second mounting sleeve 442. The right side of the limiting section 4111 abuts against the second mounting sleeve 442 and the left side abuts against the limiting seat 44. The limiting section 4111 abuts against the second mounting sleeve 442 and the limiting seat 44, thus limiting the valve body 411 in the front and rear, ensuring that the valve body 411 will not undergo axial displacement during operation, and improving the stability of the pressure regulating valve operation. Since one end of the valve body 411 of the friction-reducing pressure regulating valve 41 installed in the mounting seat 42 abuts against the second mounting sleeve 442 and the other end abuts against the limiting seat 44, the relative positions of the three can be determined, thereby facilitating the detachable connection between the fixing bracket 43 and the mounting seat 42.

[0023] The fixing frame 43 is made of a deformable material such as rubber and includes mounting plates 432 on the front and rear sides and a limiting plate 431 located between the mounting plates 432. The right side of the limiting plate 431 abuts against the limiting section 4111 and the limiting plate 431 is located on the outer periphery of the valve body 411. Each mounting plate 432 is detachably connected to the fixing frame 43 by means of buckles or the like. The limiting seat 44 is made of a deformable material (such as rubber or elastic polymer), which has a certain buffering performance, can absorb vibration, reduce noise, and enhance the sealing between the pressure regulating valve and the valve body 411. The mounting plate 432 is detachably connected to the fixing frame 43, which facilitates later maintenance or replacement of the limiting seat 44 and improves the maintainability of the product.

[0024] The mounting base 42 has limit blocks 421 protruding on both its front and rear sides, and each mounting plate 432 has a limit slot 4321 corresponding to each limit block 421. The cooperation between the limit block 421 and the limit slot 4321 makes the connection between the mounting plate 432 and the mounting base 42 more precise, preventing the mounting plate 432 from loosening or falling off during use. The snap-fit ​​connection can also improve assembly efficiency.

[0025] Preferably, each mounting plate 432 has a mating horizontal plate 4322 extending longitudinally on one side. The mating horizontal plate 4322 makes it easier to apply force to each mounting plate 432, thereby separating it from the outer wall of the mounting sleeve 3 and separating the limiting block 421 from the limiting slot 4321. The limiting seat 44 can then be removed and the friction-reducing pressure regulating valve 41 can be taken out.

[0026] Furthermore, the motor 5 is a brushed motor 5. Compared to the brushless motor 5 with a working flow of 25 liters per hour, the improved brushed motor 5 has a working flow of 35 liters per hour, which greatly increases the amount of fuel injected and provides stronger power. Moreover, compared to the brushless motor 5, the brushed motor 5 does not require the installation of a brushless motor 5 control board, which reduces costs and avoids the failure of the motor 5 to work due to control board failure.

[0027] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A motorcycle fuel pump assembly, comprising a cover, a plug located on the cover, a mounting sleeve located below the cover, a pressure regulating valve unit located on the mounting sleeve, a motor located inside the mounting sleeve, a bracket located below the mounting sleeve, and a filter screen and a fuel level sensor located on the bracket, characterized in that: The pressure regulating valve unit includes a friction-reducing plate type pressure regulating valve.

2. The motorcycle fuel pump assembly according to claim 1, characterized in that: The pressure regulating valve unit also includes a mounting base integrally formed with the mounting sleeve and a fixing frame for mounting the friction-reducing pressure regulating valve, wherein the fixing frame and the mounting base are detachably connected.

3. The motorcycle fuel pump assembly according to claim 2, characterized in that: The friction-reducing pressure regulating valve includes a valve body, and the pressure regulating valve unit further includes a limiting seat located around the valve body. The limiting seat includes a first mounting sleeve and a second mounting sleeve. The second mounting sleeve is located to the left of the first mounting sleeve. Mounting seats are inserted into both the first mounting sleeve and the right side of the valve body, and the second mounting sleeve abuts against the mounting sleeve.

4. The motorcycle fuel pump assembly according to claim 3, characterized in that: The valve body includes a limiting section located on the left side of the second mounting sleeve, the right side of the limiting section abutting against the second mounting sleeve and the left side abutting against the limiting seat.

5. The motorcycle fuel pump assembly according to claim 4, characterized in that: The fixing frame is made of a material that is prone to deformation and includes mounting plates on the front and rear sides and a limiting plate located between the mounting plates. The right side of the limiting plate abuts against the limiting section and the limiting plate is located on the outer periphery of the valve body. Each mounting plate is detachably connected to the fixing frame.

6. The motorcycle fuel pump assembly according to claim 5, characterized in that: The mounting base has limit blocks protruding on both the front and rear sides, and each mounting plate has a limit slot corresponding to each limit block.

7. The motorcycle fuel pump assembly according to claim 6, characterized in that: Each mounting plate has a mating cross plate extending longitudinally along one side.

8. The motorcycle fuel pump assembly according to claim 1, characterized in that: The motor is a brushed motor.

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