Detachable high-flow shunt pipe fuel pump assembly

Abstract

A detachable large-flow shunt pipe fuel pump assembly comprises a fuel pump and a filter which are arranged in an oil storage barrel, a connecting support is arranged between the fuel pump and the filter, a support flow channel communicated with the fuel pump and the filter is formed in the connecting support, a one-way valve is arranged in the support flow channel, and the fuel pump and the filter are connected through the one-way valve. The connecting support is provided with a large-flow flow dividing pipe, the two ends of the large-flow flow dividing pipe are communicated with the support flow channel and the interior of the oil storage barrel respectively, and the large-flow flow dividing pipe is detachably connected with the connecting support. And the effect of adapting to pump cores with different flows and pressures is achieved by replacing the flow dividing pipes with different hole diameters in the detachable large-flow flow dividing pipe, so that the development efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of fuel pumps, in particular to a detachable large-flow shunt pipe fuel pump assembly. Background Art

[0002] The electronic fuel pump assembly is a key component of the fuel injection system, pumping fuel from the fuel tank and delivering it to the fuel supply line. With the industry's gradual development, the demand for high-flow fuel pumps has also increased, resulting in the emergence of various fuel pump models. However, as the fuel pump flow rate increases, the pressure on the pump core also increases. When the fuel flow rate exceeds the acceptable range of the pump core, it will cause damage to the equipment. Existing fuel pumps with a single flow rate cannot adapt to various flow rates and pressures, resulting in low production efficiency. Utility Model Content

[0003] In view of this, the utility model provides a detachable large-flow manifold fuel pump assembly.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A detachable large-flow shunt pipe fuel pump assembly includes a fuel pump and a filter arranged in an oil storage barrel, a connecting bracket is arranged between the fuel pump and the filter, a bracket flow channel connecting the fuel pump and the filter is formed in the connecting bracket, a one-way valve is arranged in the bracket flow channel, a large-flow shunt pipe is arranged on the connecting bracket, and the two ends of the large-flow shunt pipe are respectively connected to the bracket flow channel and the interior of the oil storage barrel, and the large-flow shunt pipe and the connecting bracket are detachably connected.

[0006] Preferably, the connecting bracket is divided into a first connecting bracket and a second connecting bracket, and a connecting portion connected to a large-flow diversion pipe is formed inside the second connecting bracket. The large-flow diversion pipe consists of a connecting portion and a diversion portion. The connecting portion extends into the connecting portion and is connected to the second connecting bracket. The connecting portion also has an elastic arc surface structure, and the elastic arc surface structure is arranged at the connection between the second connecting bracket and the large-flow diversion pipe.

[0007] Preferably, the elastic arc surface structure is arranged in an umbrella shape, the elastic arc surface structure is protruded on the connecting portion, and an annular elastic groove is formed between the elastic arc surface structure and the connecting portion.

[0008] Preferably, the communicating portion has a communicating opening, and an annular guiding inclined surface is provided on an inner wall of the communicating portion on one side close to the communicating opening, and the annular guiding inclined surface is connected to the elastic arc surface structure.

[0009] Preferably, the one-way valve consists of a valve body and an elastic element, a sealing structure is provided between the valve body and the connecting bracket, the sealing structure is a sealing groove and a sealing ring, a valve cavity is formed in the valve body, a valve core is also provided in the valve body, an annular sealing portion is provided near the valve core side of the valve cavity, the valve core consists of a sealing end and a connecting end, the valve core sealing end is sealed in connection with the annular sealing portion, and the valve core connecting end is connected to the elastic element.

[0010] Preferably, a filter element is provided inside the filter, and a filter screen is provided at the fuel pump inlet.

[0011] Preferably, the oil outlet of the filter is connected to a flange cover oil outlet pipe.

[0012] The beneficial effect of the present invention is that in this design, the detachable large-flow diverter tube can be replaced with diverter tubes of different aperture sizes to achieve the function of adapting to pump cores of different flow rates and pressures, thereby greatly improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Attachment Figure 1 This is a schematic diagram of the structure of the utility model.

[0015] Attachment Figure 2 This is an enlarged view of the large flow diversion pipe in the utility model mechanism.

[0016] Attachment Figure 3 For attachment Figure 1 Enlarged view of point A in the middle.

[0017] Reference numerals:

[0018] 1. Fuel pump, 2. Filter, 3. Connecting bracket, 4. Bracket flow channel, 5. One-way valve, 6. High-flow diverter pipe, 61. Connecting part, 62. Diverter part, 7. First connecting bracket, 8. Second connecting bracket, 9. Elastic arc surface structure, 10. Annular elastic groove, 11. Connecting port, 12. Annular guide slope, 13. Valve body, 14. Elastic element, 151. Sealing groove, 152. Sealing ring, 16. Valve core, 17. Valve cavity, 18. Annular sealing part, 161. Valve core sealing part, 162. Valve core connecting part, 19. Filter element, 20. Filter screen, 21. Connecting part. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] The utility model provides the following technical solutions:

[0022] As attached Figure 1-3 As shown, the utility model discloses a detachable large-flow manifold fuel pump assembly, comprising a fuel pump 1 and a filter 2 disposed within an oil storage tank, a connecting bracket 3 disposed between the fuel pump 1 and the filter 2, a bracket flow channel 4 connecting the fuel pump 1 and the filter 2 formed within the connecting bracket 3, a one-way valve 5 disposed within the bracket flow channel 4, a large-flow manifold 6 disposed on the connecting bracket 3, the two ends of the large-flow manifold 6 respectively connecting the bracket flow channel 4 and the interior of the oil storage tank, and a detachable connection between the large-flow manifold 6 and the connecting bracket 3. Specifically, in this embodiment, by providing a detachable large-flow manifold 6, the fuel pump 1 and the filter 2 can be quickly disassembled and installed when repairing or replacing them, thereby improving repair efficiency and reducing maintenance costs. At the same time, the large-flow manifold 6 provides a variety of aperture size options, which can adapt to pump cores with different flow and pressure requirements, ensuring efficient operation under various working conditions.

[0023] Furthermore, the connecting bracket 3 is divided into a first connecting bracket 7 and a second connecting bracket 8. The second connecting bracket 8 has a connecting portion 21 formed therein for connecting to the high-flow shunt pipe 6. The high-flow shunt pipe 6 is composed of a connecting portion 61 and a shunt portion 62. The connecting portion 61 extends into the connecting portion 21 and connects to the second connecting bracket 8. The connecting portion 61 also has an elastic arc surface structure 9, which is provided at the connection between the second connecting bracket 8 and the high-flow shunt pipe 6. In this embodiment, the elastic arc surface structure 9 functions to absorb some of the impact force when the high-flow shunt pipe 6 is subjected to pressure changes, thereby protecting the shunt pipe from damage. At the same time, this structure also ensures the sealing of the connection, preventing fluid leakage.

[0024] Furthermore, the elastic arc surface structure 9 is configured in an umbrella shape, protruding from the connecting portion 61. An annular elastic groove 10 is formed between the elastic arc surface structure 9 and the connecting portion 61. When the elastic arc surface structure 9 is connected to the connecting portion 21 of the second connecting bracket, the arc surface of the elastic arc surface structure 9 is connected to the connecting portion 21. The tight connection between the elastic arc surface structure generates pressure inwardly of the component, while the elastic force generated by the deformation of the elastic arc surface structure works together to tightly connect the elastic arc surface structure 9 and the connecting portion 21. In addition, the material of the elastic arc surface structure 9 is flexible.

[0025] Furthermore, the communication portion 21 has a communication opening 11, and an annular guide slope 12 is provided on the inner wall of the communication portion 21 near the communication opening 11. The annular guide slope 12 is connected to the elastic arc surface structure 9. In this embodiment, the annular guide slope 12 can be tightly fitted with the outer surface of the umbrella-shaped elastic arc surface structure 9. This structural design can increase the contact area between the two, thereby improving the sealing performance, and can also better guide and position the elastic arc surface structure 9.

[0026] Furthermore, the one-way valve 5 is composed of a valve body 13 and an elastic element 14. A sealing structure is provided between the valve body 13 and the connecting bracket 3. The sealing structure is a sealing groove 151 and a sealing ring 152. A valve cavity 17 is formed in the valve body 13. A valve core 16 is also provided in the valve body 13. An annular sealing portion 18 is provided in the valve cavity 17 near the valve core 16. The valve core 16 has a valve core sealing portion 161 and a valve core connecting portion 162. The connecting portion 21 is sealed with the annular sealing portion 18, and the valve core connecting portion 162 is connected to the elastic element 14. Specifically, the one-way valve 5 in this embodiment plays a role in controlling the unidirectional flow of fluid. Under normal working conditions, fluid enters the valve cavity 17 from the inlet, pushing the valve core 16 to move, so that the connecting portion 21 of the valve core 16 is separated from the annular sealing portion 18, thereby allowing the fluid to pass. When the fluid pressure disappears or reverses, the elastic element 14 pushes the valve core 16 back to its original position. The sealing end of the valve core 16 contacts the annular sealing portion 18 tightly, preventing the fluid from flowing in the opposite direction and ensuring the safety and stability of the system. Typically, the one-way valve 5 is installed at an appropriate location in the fluid delivery pipeline to ensure smooth one-way flow of the fluid and prevent system failures caused by pressure fluctuations or reverse flow.

[0027] Further, the filter 2 is internally provided with a filter element 19, and the fuel pump 1 is provided with a filter screen 20 at the inlet, which functions to filter the fuel and ensure the cleanliness of the fuel system, and the design of the filter element 19 and the filter screen 20 is crucial. The filter element 19 is usually composed of multiple layers of materials with different densities, which can effectively intercept impurity particles, thereby protecting the fuel pump 1 from pollution. In addition, the filter screen 20 at the inlet of the fuel pump 1 can not only prevent larger particles from entering the fuel pump 1, but also reduce the wear of the fuel pump 1 to a certain extent. Since the filter screen 20 has a small pore size, it can capture tiny particles, further improve the purity of the fuel, and prevent the fuel pump 1 from being blocked inside.

[0028] The above description of disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A detachable high-flow manifold fuel pump assembly, comprising a fuel pump and a filter disposed within a fuel tank, a connecting bracket disposed between the fuel pump and the filter, and a bracket flow channel formed within the connecting bracket that connects the fuel pump and the filter, characterized in that: A large flow shunt pipe is provided on the connecting bracket, and the two ends of the large flow shunt pipe are respectively connected to the bracket flow channel and the inside of the oil storage barrel, and the large flow shunt pipe and the connecting bracket are detachably connected.

2. The detachable large flow manifold fuel pump assembly according to claim 1, characterized in that: The connecting bracket is divided into a first connecting bracket and a second connecting bracket. A connecting portion connected to a large-flow diversion pipe is formed inside the second connecting bracket. The large-flow diversion pipe consists of a connecting portion and a diversion portion. The connecting portion extends into the connecting portion and is connected to the second connecting bracket. The connecting portion also has an elastic arc surface structure, and the elastic arc surface structure is arranged at the connection between the second connecting bracket and the large-flow diversion pipe.

3. The detachable large flow manifold fuel pump assembly according to claim 2, characterized in that: The elastic arc surface structure is arranged in an umbrella shape, and the elastic arc surface structure is protruded on the connecting portion, and an annular elastic groove is formed between the elastic arc surface structure and the connecting portion.

4. The detachable large flow manifold fuel pump assembly according to claim 2, characterized in that: The communicating portion has a communicating opening, and an annular guiding inclined surface is provided on an inner wall of the communicating portion close to the communicating opening, and the annular guiding inclined surface is connected to the elastic arc surface structure.

5. The detachable large flow manifold fuel pump assembly according to claim 1, characterized in that: A one-way valve is arranged in the flow channel of the bracket, and the one-way valve consists of a valve body and an elastic element. A sealing structure is arranged between the valve body and the connecting bracket, and the sealing structure includes a sealing groove opened on the valve body and a sealing ring arranged in the sealing groove. A valve cavity is formed in the valve body, and a valve core is also provided in the valve body. The valve core is arranged in the valve cavity, and an annular sealing portion is provided on the side of the valve core near the valve cavity. The valve core has a sealing end and a connecting end. The sealing end of the valve core is sealed in connection with the annular sealing portion, and the connecting end of the valve core is connected to the elastic element.

6. The detachable large flow manifold fuel pump assembly according to claim 1, characterized in that: A filter element is arranged inside the filter, and a filter screen is arranged at the inlet of the fuel pump.

7. The detachable large flow manifold fuel pump assembly according to claim 6, characterized in that: The oil outlet of the filter is connected with an oil outlet pipe of a flange cover.

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