Fuel pump assembly with inductive pressure function

Abstract

The utility model provides a kind of fuel pump assembly with inductive pressure function, fuel pump body and fine filter are connected by setting multifunctional connecting structure, not only realize the stable connection between fuel pump body and fine filter, but also integrate pressure relief valve and pressure sensor component, improve the functionality and safety of fuel pump assembly.The setting of pressure relief valve can be opened automatically when oil pressure is too high, release excess pressure, prevent equipment damage or safety accident caused by high pressure.At the same time, pressure sensor component can monitor oil pressure in real time, and transmit data to data interface on flange cover, so that user can know the working condition of fuel pump at any time, and carry out timely and effective maintenance and management.This design not only improves the working efficiency of fuel pump, but also enhances its reliability and durability, brings more convenient and safe use experience for user.

Description

Technical Field

[0001] This utility model relates to the field of fuel pump technology, specifically to a fuel pump assembly with pressure sensing function. Background Technology

[0002] In existing technologies, traditional fuel supply systems distribute pressure sensors, pressure relief valves, fine filters, and fuel pumps in various parts of the fuel system. The components are scattered, and there are many accessories to match the assembly of these components. When detecting faults in the fuel system, each of these components must be tested separately, which makes fault analysis and handling very difficult. Summary of the Invention

[0003] In view of this, the present invention provides a fuel pump assembly with pressure sensing function.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A fuel pump assembly with pressure sensing function includes a fuel pump body and a fine filter. A multi-functional connection structure is provided between the fuel pump body and the fine filter. The multi-functional connection structure includes a connecting sleeve, a pressure relief valve, and a pressure sensor assembly. The connecting sleeve has a pump body connection portion and a fine filter connection portion that respectively connect the fuel pump body and the fine filter. An oil passage is formed in the upper part of the connecting sleeve. The fine filter has an oil outlet that communicates with the oil passage. The pressure relief valve and the pressure sensor assembly are respectively located inside the oil passage on both sides of the oil outlet of the fine filter. A flange cover is provided on the upper part of the fuel pump body. A data interface is provided on the flange cover. The pressure sensor assembly is communicatively connected to the data interface.

[0005] Preferably, the pressure sensor assembly includes a limiting mounting base and a pressure sensor body. The limiting mounting base is detachably disposed in the oil channel. A seat insertion port is provided on one side of the limiting mounting base. One end of the pressure sensor body extends into the seat insertion port and connects to the limiting mounting base. The other end of the pressure sensor body is communicatively connected to a data interface on the flange cover.

[0006] Preferably, the limiting mounting seat has a seat body and a claw-shaped locking part. The seat body socket is disposed on the seat body, and the claw-shaped locking part is disposed on the side of the seat body where the seat body socket is located. A plurality of claw-shaped locking parts are provided, and the claw-shaped locking parts are arranged radially with the center of the seat body as the axis. The inner wall of the oil channel has a corresponding locking interface for the claw-shaped locking part, and the claw-shaped locking part extends into the corresponding locking interface and locks and fixes itself to the inner wall of the oil channel.

[0007] Preferably, an annular sealing groove is formed on the outer wall of the pressure relief valve, and an annular sealing ring is provided in the annular sealing groove. The two sides of the annular sealing ring are respectively sealed and connected to the groove wall of the annular sealing groove and the inner wall of the oil passage. The annular sealing ring is interference-fitted with the inner wall of the oil passage and the groove wall of the annular sealing groove.

[0008] Preferably, the pump body connection and the fine filter connection are respectively located on both sides of the connecting sleeve. The pump body connection has an annular structure, and the fine filter connection has a cap-like structure. The pump body connection is sleeved on the fuel pump and snap-fitted to the fuel pump, and the fine filter connection covers the fine filter and snap-fitted to the fine filter.

[0009] Preferably, a limiting strip and a guide strip protrude from the outer wall of the fine filter. The limiting strip is arranged in a horizontal structure, and the guide strip is arranged in a vertical structure. The bottom of the fine filter connection part abuts against the limiting strip to limit the position of the fine filter connection part on the fine filter. A guide groove corresponding to the guide strip is opened on the fine filter connection part. During the connection between the fine filter connection part and the fine filter, the guide strip extends into the guide groove and guides and cooperates with the fine filter connection part.

[0010] Preferably, the connecting sleeve is integrally formed by injection molding.

[0011] The beneficial effects of this invention are as follows: By connecting the fuel pump body and the fine filter through a multi-functional connection structure, a stable connection between the fuel pump body and the fine filter is achieved. Furthermore, a pressure relief valve and pressure sensor assembly are integrated, enhancing the functionality and safety of the fuel pump assembly. The pressure relief valve automatically opens when the fuel pressure is too high, releasing excess pressure and preventing equipment damage or safety accidents caused by excessive pressure. Simultaneously, the pressure sensor assembly monitors the fuel pressure in real time and transmits the data to the data interface on the flange cover, allowing users to easily monitor the fuel pump's operating status and perform timely and effective maintenance and management. This design not only improves the fuel pump's efficiency but also enhances its reliability and durability, providing users with a more convenient and safer user experience. Attached Figure Description

[0012] 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.

[0013] Appendix Figure 1 This is a schematic diagram of the structure of this utility model; Appendix Figure 2 For the appendix Figure 1 Structural breakdown diagram; Appendix Figure 3 This is a schematic diagram of a multi-functional connection structure; Appendix Figure 4 This is a schematic diagram of a pressure sensor assembly. Detailed Implementation

[0014] 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.

[0015] The present invention will now be further described with reference to the accompanying drawings.

[0016] This utility model provides the following technical solution: As attached Figure 1-4 As shown, this utility model discloses a fuel pump assembly with pressure sensing function, including a fuel pump body 1 and a fine filter 2. A multi-functional connection structure is provided between the fuel pump body 1 and the fine filter 2. The multi-functional connection structure includes a connecting sleeve 3, a pressure relief valve 4, and a pressure sensor assembly 5. The connecting sleeve 3 has a pump body connecting part 6 and a fine filter connecting part 7 that respectively connect the fuel pump body 1 and the fine filter 2. An oil passage 8 is opened on the upper part of the connecting sleeve 3. The fine filter 2 is provided with a fine filter outlet 9, which communicates with the oil passage 8. The pressure relief valve 4 and the pressure sensor assembly 5 are respectively located inside the oil passage 8 on both sides of the fine filter outlet 9. A flange cover 10 is provided on the upper part of the fuel pump body 1. A data interface 11 is provided on the flange cover 10. The pressure sensor assembly 5 is communicatively connected to the data interface 11. Specifically, in this design, a multi-functional connection structure is used to connect the fuel pump body 1 and the fine filter 2. This not only achieves a stable connection between the fuel pump body 1 and the fine filter 2, but also integrates a pressure relief valve 4 and a pressure sensor assembly 5, enhancing the functionality and safety of the fuel pump assembly. The pressure relief valve 4 automatically opens when the fuel pressure is too high, releasing excess pressure and preventing equipment damage or safety accidents caused by excessive pressure. Simultaneously, the pressure sensor assembly 5 monitors the fuel pressure in real time and transmits the data to the data interface 11 on the flange cover 10, allowing users to easily monitor the fuel pump's operating status and perform timely and effective maintenance and management. This design not only improves the fuel pump's efficiency but also enhances its reliability and durability, providing users with a more convenient and safer user experience.

[0017] Furthermore, the pressure sensor assembly 5 includes a limiting mounting base 12 and a pressure sensor body 13. The limiting mounting base 12 is detachably disposed within the oil passage 8. A seat insertion port 14 is provided on one side of the limiting mounting base 12. One end of the pressure sensor body 13 extends into the seat insertion port 14 and connects to the limiting mounting base 12, while the other end of the pressure sensor body 13 is communicatively connected to the data interface 11 on the flange cover 10. Specifically, in this embodiment, the design of the limiting mounting base 12 allows the pressure sensor body 13 to be securely installed within the oil passage 8, preventing sensor loosening or damage due to oil flow or equipment vibration. The seat insertion port 14 facilitates the installation and removal of the pressure sensor body 13, making it convenient for users to maintain and replace it. Simultaneously, the communication connection between the pressure sensor body 13 and the data interface 11 on the flange cover 10 ensures accurate data transmission, enabling users to obtain real-time fuel pump operating pressure information. This design not only improves the reliability and durability of the fuel pump assembly, but also provides users with more accurate and real-time monitoring data, helping them to better understand and manage the working status of the fuel pump.

[0018] Furthermore, the limiting mounting base 12 has a base portion 15 and claw-shaped engaging portions 16. A base insertion port 14 is disposed on the base portion 15, and the claw-shaped engaging portions 16 are disposed on the side of the base portion 15 with the base insertion port 14. Several claw-shaped engaging portions 16 are provided, arranged radially around the center of the base portion 15. A corresponding engaging interface 17 is provided on the inner wall of the oil channel 8, and the claw-shaped engaging portions 16 extend into the corresponding engaging interface 17 and engage with the inner wall of the oil channel 8. Specifically, in this embodiment, the design of the claw-shaped engaging portions 16 allows the limiting mounting base 12 to be firmly engaged within the oil channel 8, maintaining stability even under the impact of high-pressure oil. The radially arranged claw-shaped engaging portions 16 not only enhance the engaging force but also simplify the installation process; simply align the claw-shaped engaging portions 16 with the engaging interface 17 and push them in. Meanwhile, the opening of the card interface 17 matches the shape of the claw-type locking part 16, ensuring installation accuracy and sealing, and preventing oil leakage. This design not only improves the overall performance of the fuel pump assembly, but also provides users with a more reliable and safer user experience.

[0019] Furthermore, an annular sealing groove 18 is formed on the outer wall of the pressure relief valve 4, and an annular sealing ring 19 is provided in the annular sealing groove 18. The two sides of the annular sealing ring 19 are respectively sealed and connected to the groove wall of the annular sealing groove 18 and the inner wall of the oil passage 8. The annular sealing ring 19 is interference-fitted with the inner wall of the oil passage 8 and the groove wall of the annular sealing groove 18. Specifically, in this embodiment, the design of the annular sealing ring 19 effectively prevents oil leakage during the opening or closing of the pressure relief valve 4, ensuring the sealing performance of the fuel pump assembly. The interference fit installation method allows the annular sealing ring 19 to fit tightly against the groove wall of the annular sealing groove 18 and the inner wall of the oil passage 8, maintaining a good sealing effect even under high pressure. At the same time, the opening of the annular sealing groove 18 matches the shape of the annular sealing ring 19, further enhancing the reliability and stability of the seal. This design not only improves the working efficiency of the fuel pump, but also reduces equipment failures and safety hazards caused by oil leakage, providing users with a safer and more reliable fuel pump assembly.

[0020] Furthermore, the pump body connecting part 6 and the fine filter connecting part 7 are respectively disposed on both sides of the connecting sleeve 3. The pump body connecting part 6 has an annular structure, and the fine filter connecting part 7 has a cap-like structure. The pump body connecting part 6 is fitted onto the fuel pump and snaps into it, while the fine filter connecting part 7 covers the fine filter 2 and snaps into it. Specifically, in this embodiment, the design of the pump body connecting part 6 and the fine filter connecting part 7 allows the multi-functional connecting structure to be securely connected between the fuel pump body 1 and the fine filter 2. The annular structure of the pump body connecting part 6 can be tightly fitted onto the fuel pump, achieving a secure fixation through snap-fit ​​connection, avoiding loosening of the connection due to vibration during fuel pump operation. The cap-like structure of the fine filter connecting part 7 can cover the fine filter 2, also achieving a secure connection through snap-fit ​​connection, ensuring a tight fit between the fine filter 2 and the multi-functional connecting structure. This design not only improves the overall stability of the fuel pump assembly but also simplifies the installation and disassembly process, facilitating maintenance and replacement by the user. The snap-fit ​​structures are all common snap-fit ​​shapes in existing technologies, so they will not be described in detail here.

[0021] Furthermore, a limiting strip 20 and a guide strip 21 protrude from the outer wall of the fine filter 2. The limiting strip 20 is horizontal, and the guide strip 21 is vertical. The bottom of the fine filter connecting part 7 abuts against the limiting strip 20 to limit the position of the fine filter connecting part 7 on the fine filter 2. A guide groove 22 corresponding to the guide strip 21 is formed on the fine filter connecting part 7. During the connection between the fine filter connecting part 7 and the fine filter 2, the guide strip 21 extends into the guide groove 22 and guides and cooperates with the fine filter connecting part 7. Specifically, in this embodiment, the design of the limiting strip 20 and the guide strip 21 further enhances the connection stability and accuracy between the fine filter 2 and the multifunctional connecting structure. The horizontal limiting strip 20 can effectively prevent the fine filter 2 from shifting during the connection process, ensuring the accurate positioning of the fine filter connecting part 7 on the fine filter 2. The vertical guide bar 21 guides the fine filter connector 7 to align correctly with the fine filter 2, making the installation process smoother and avoiding installation difficulties or damage caused by misalignment. Meanwhile, the guide groove 22 matches the shape of the guide bar 21, ensuring installation accuracy and stability, and improving the overall performance of the fuel pump assembly.

[0022] 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 fuel pump assembly with pressure sensing function, comprising a fuel pump body and a fine filter, characterized in that: A multi-functional connection structure is provided between the fuel pump body and the fine filter. The multi-functional connection structure includes a connecting sleeve, a pressure relief valve, and a pressure sensor assembly. The connecting sleeve has a pump body connection part and a fine filter connection part that respectively connect the fuel pump body and the fine filter. An oil passage is opened on the upper part of the connecting sleeve. The fine filter is provided with a fine filter outlet, which communicates with the oil passage. The pressure relief valve and the pressure sensor assembly are respectively located inside the oil passage on both sides of the fine filter outlet. A flange cover is provided on the upper part of the fuel pump body, and a data interface is provided on the flange cover. The pressure sensor assembly is communicatively connected to the data interface.

2. The fuel pump assembly with pressure sensing function according to claim 1, characterized in that: The pressure sensor assembly includes a limiting mounting base and a pressure sensor body. The limiting mounting base is detachably installed in the oil channel. A seat insertion port is provided on one side of the limiting mounting base. One end of the pressure sensor body extends into the seat insertion port and connects to the limiting mounting base. The other end of the pressure sensor body is communicatively connected to the data interface on the flange cover.

3. The fuel pump assembly with pressure sensing function according to claim 2, characterized in that: The limiting mounting base has a base body and a claw-shaped locking part. The base body socket is located on the base body, and the claw-shaped locking part is located on the side of the base body with the base body socket. Several claw-shaped locking parts are provided and are arranged radially with the center of the base body as the axis. The inner wall of the oil channel has a corresponding locking interface for the claw-shaped locking part. The claw-shaped locking part extends into the corresponding locking interface and locks and fixes itself to the inner wall of the oil channel.

4. The fuel pump assembly with pressure sensing function according to claim 1, characterized in that: An annular sealing groove is formed on the outer wall of the pressure relief valve, and an annular sealing ring is provided in the annular sealing groove. The two sides of the annular sealing ring are respectively sealed and connected to the groove wall of the annular sealing groove and the inner wall of the oil passage. The annular sealing ring is interference-fitted with the inner wall of the oil passage and the groove wall of the annular sealing groove.

5. The fuel pump assembly with pressure sensing function according to claim 1, characterized in that: The pump body connection and the fine filter connection are respectively located on both sides of the connecting sleeve. The pump body connection has a ring structure, and the fine filter connection has a cover structure. The pump body connection is sleeved on the fuel pump and snapped into the fuel pump, and the fine filter connection is covered on the fine filter and snapped into the fine filter.

6. The fuel pump assembly with pressure sensing function according to claim 1, characterized in that: A limiting strip and a guide strip protrude from the outer wall of the fine filter. The limiting strip is arranged in a horizontal structure, and the guide strip is arranged in a vertical structure. The bottom of the fine filter connection part abuts against the limiting strip to limit the position of the fine filter connection part on the fine filter. A guide groove corresponding to the guide strip is opened on the fine filter connection part. During the connection between the fine filter connection part and the fine filter, the guide strip extends into the guide groove and guides and cooperates with the fine filter connection part.

7. The fuel pump assembly with pressure sensing function according to claim 1, characterized in that: The connecting sleeve is integrally formed by injection molding.

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