Fuel metering solenoid for an automotive engine

Abstract

The utility model discloses a kind of fuel metering solenoid valve of automobile engine, including fuel metering solenoid valve body and the front side position of setting front connection mouth;The side position of front connection mouth is provided with outer connecting column, the inner side position of outer connecting column is provided with side surface connection limit removal groove, the side position of extrusion moving plate one is provided with extrusion connecting spring body, the side position of extrusion moving plate two is provided with telescopic connecting body, the end position of telescopic connecting body is provided with built-in breather pipe mouth, by the utility model improvement, inside connection rubber airbag ring can extrude outer connecting structure to increase air tightness, by extrusion connecting spring body setting can make increase its elastic extrusion state, can be in inside connection rubber airbag ring long time use when sticking unstable to assist its extrusion sticking, and then effectively improve the air tightness and use practicality of automobile engine's fuel metering solenoid valve connection.

Description

Technical Field

[0001] This utility model belongs to the technical field related to the automotive industry, specifically relating to a fuel metering solenoid valve for an automotive engine. Background Technology

[0002] The fuel metering solenoid valve is a core component in the fuel injection system that precisely controls the amount of fuel supplied. Its main function is to adjust the amount of fuel entering the high-pressure pump according to the engine's needs, thereby controlling the fuel pressure in the common rail and ensuring the fuel injection accuracy of the engine under different operating conditions.

[0003] However, after repeated installation, disassembly and repair of the fuel metering solenoid valve via threaded connection, gaps may appear in the threads. These gaps can lead to air or liquid leakage, which in turn affects the fuel injection accuracy.

[0004] This invention addresses the aforementioned problems by providing a fuel metering solenoid valve for an automotive engine with an auxiliary airtight structure. Utility Model Content

[0005] The purpose of this utility model is to provide a fuel metering solenoid valve for an automobile engine, in order to solve the problem mentioned in the background art that after repeated installation, disassembly and repair of the fuel metering solenoid valve through threaded connection, gaps will appear in the threads, which will lead to air or liquid leakage, and thus affect the fuel injection accuracy.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a fuel metering solenoid valve for an automobile engine, comprising a fuel metering solenoid valve body and a front connection port provided at the front side of the fuel metering solenoid valve body; An inner connecting rubber airbag ring is provided at the middle position of the inner side of the front connecting port. An outer connecting post is provided at the side position of the front connecting port. A central connecting threaded post is provided at the middle position of the outer connecting post. A side connecting limiting moving groove is provided at the inner position of the outer connecting post. A compression moving plate one is provided at the end position of the central connecting threaded post. A compression connecting spring body is provided at the side position of the compression moving plate one. A compression moving plate two is provided at the side position of the compression connecting spring body. A telescopic connecting body is provided at the side position of the compression moving plate two. An internal vent is provided at the end position of the telescopic connecting body.

[0007] Preferably, the inner side of the outer connecting post is provided with an internal thread, and the outer side of the central connecting thread post is provided with an external thread that matches the outer connecting post.

[0008] Preferably, a toggle adjustment knob is provided on the side of the central connecting threaded post, and the outer side of the toggle adjustment knob is textured.

[0009] Preferably, a rear connection port is provided at the rear side of the fuel metering solenoid valve body, and both the rear connection port and the front connection port are provided with internal threads.

[0010] Preferably, a rotating shaft is provided between the central connecting threaded column and the extrusion moving plate, and the central connecting threaded column and the extrusion moving plate are rotatably connected through the rotating shaft.

[0011] Preferably, an upper connecting electromagnetic outer structure is provided on the upper side of the fuel metering solenoid valve body, and the upper connecting electromagnetic outer structure is installed and connected to the fuel metering solenoid valve body by screws passing through a central connecting piece provided therebetween.

[0012] Preferably, a side connector is provided at the rear side of the upper connecting electromagnetic outer structure, and the side connector is provided with a nut structure and external threads.

[0013] Compared with the prior art, this utility model provides a fuel metering solenoid valve for an automobile engine, which has the following advantages: In the fuel metering solenoid valve of an automobile engine, an inner connecting rubber airbag ring is provided at the middle position of the inner side of the front connection port, an outer connecting post is provided at the side position of the front connection port, a central connecting threaded post is provided at the middle position of the outer connecting post, a side connecting limiting moving groove is provided at the inner position of the outer connecting post, a compression moving plate one is provided at the end position of the central connecting threaded post, a compression connecting spring body is provided at the side position of the compression moving plate one, a compression moving plate two is provided at the side position of the compression connecting spring body, a telescopic connecting body is provided at the side position of the compression moving plate two, and an internal vent is provided at the end position of the telescopic connecting body. After the improvement of this utility model, the inner connecting rubber airbag ring can compress the outer connecting structure to increase the airtightness. The compression connecting spring body can increase its elastic compression state, which can assist in the compression and adhesion of the inner connecting rubber airbag ring when it is unstable during long-term use, thereby effectively improving the airtightness and usability of the fuel metering solenoid valve connection of the automobile engine. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the fuel metering solenoid valve for an automobile engine according to this utility model.

[0015] Figure 2 This is a schematic diagram of the structure of the fuel metering solenoid valve for an automobile engine in the unmodified form.

[0016] Figure 3 This is a frontal cross-sectional view of the external connecting column of the fuel metering solenoid valve of the automobile engine according to this utility model.

[0017] In the diagram: 1. Fuel metering solenoid valve body; 2. Front connection port; 3. Rear connection port; 4. Upper connection solenoid outer structure; 5. Central connection piece; 6. Side connection head; 7. Internal thread of the connection port; 8. Inner connection rubber airbag ring; 9. Outer connection post; 10. Toggle adjustment knob; 11. Central connection threaded post; 12. Side connection limit movement groove; 13. Extrusion movement plate one; 14. Extrusion movement plate two; 15. Extrusion connection spring body; 16. Telescopic connection body; 17. Built-in vent pipe. 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] This utility model provides, for example Figure 1-3 As shown, a fuel metering solenoid valve for an automobile engine includes a fuel metering solenoid valve body 1 and a front connection port 2 provided at the front side of the fuel metering solenoid valve body 1. An inner connecting rubber airbag ring 8 is provided at the middle position of the inner side of the front connecting port 2. An outer connecting post 9 is provided at the side position of the front connecting port 2. A central connecting threaded post 11 is provided at the middle position of the outer connecting post 9. A side connecting limiting moving groove 12 is provided at the inner position of the outer connecting post 9. A compression moving plate 13 is provided at the end position of the central connecting threaded post 11. A compression connecting spring body 15 is provided at the side position of the compression moving plate 13. A compression moving plate 2 14 is provided at the side position of the compression connecting spring body 15. A telescopic connector 16 is provided on the side of the pressure plate 14, and a built-in vent 17 is provided at the end of the telescopic connector 16. With the improvement of this utility model, the inner rubber airbag ring 8 can compress the outer connecting structure to increase the airtightness. By compressing the connecting spring body 15, its elastic compression state can be increased. It can assist in compressing and fitting the inner rubber airbag ring 8 when it is unstable during long-term use, thereby effectively improving the airtightness and usability of the fuel metering solenoid valve connection of the automobile engine.

[0020] like Figure 3As shown, an internal thread is provided on the inner side of the outer connecting post 9, and an external thread that matches the outer connecting post 9 is provided on the outer side of the central connecting thread post 11. A toggle adjustment knob 10 is provided on the side of the central connecting thread post 11, and a texture is provided on the outer side of the toggle adjustment knob 10. Rotating the toggle adjustment knob 10 will cause the central connecting thread post 11 to rotate. The thread action between the central connecting thread post 11 and the outer connecting post 9 will cause the moving plate 13 to move.

[0021] like Figure 3 As shown, a rotating shaft is provided between the central connecting threaded column 11 and the extrusion moving plate 13. The central connecting threaded column 11 and the extrusion moving plate 13 are rotatably connected by the rotating shaft. The rotating shaft is designed so that when the central connecting threaded column 11 rotates and moves, it will only extrude the extrusion moving plate 13 and will not cause the extrusion moving plate 13 to rotate.

[0022] like Figure 3 As shown, a rear connection port 3 is provided at the rear side of the fuel metering solenoid valve body 1. Both the rear connection port 3 and the front connection port 2 are provided with internal threads. The internal threads provided on the inner sides of the rear connection port 3 and the front connection port 2 can be threadedly connected with the external connection port. The threaded connection installation is simple, quick and convenient to achieve.

[0023] like Figure 3 As shown, an upper connecting electromagnetic outer structure 4 is provided on the upper side of the fuel metering solenoid valve body 1. The upper connecting electromagnetic outer structure 4 and the fuel metering solenoid valve body 1 are connected by screws passing through the central connecting piece 5. The upper connecting electromagnetic outer structure 4 is provided with a coil, armature assembly and other structures inside.

[0024] like Figure 3 As shown, a side connector 6 is provided on the rear side of the upper electromagnetic outer structure 4. The side connector 6 is provided with a nut structure and an external threaded tube. The rear side connector 6 is used to connect with the vehicle structure for control and power supply.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fuel metering solenoid valve for an automobile engine, characterized in that: The present invention includes a fuel metering solenoid valve body (1) and a front connection port (2) provided at the front side of the fuel metering solenoid valve body (1); characterized in that: an inner connecting rubber airbag ring (8) is provided at the middle position of the inner side of the front connection port (2), an outer connecting post (9) is provided at the side position of the front connection port (2), a central connecting threaded post (11) is provided at the middle position of the outer connecting post (9), a side connecting limiting moving groove (12) is provided at the inner side position of the outer connecting post (9), a compression moving plate one (13) is provided at the end position of the central connecting threaded post (11), a compression connecting spring body (15) is provided at the side position of the compression moving plate one (13), a compression moving plate two (14) is provided at the side position of the compression connecting spring body (15), a telescopic connecting body (16) is provided at the side position of the compression moving plate two (14), and an internal vent (17) is provided at the end position of the telescopic connecting body (16).

2. The fuel metering solenoid valve for an automobile engine according to claim 1, characterized in that: The inner side of the outer connecting post (9) is provided with an internal thread, and the outer side of the central connecting thread post (11) is provided with an external thread that matches the outer connecting post (9).

3. The fuel metering solenoid valve for an automobile engine according to claim 1, characterized in that: A toggle adjustment knob (10) is provided on the side of the central connecting threaded column (11), and the outer side of the toggle adjustment knob (10) is provided with texture.

4. The fuel metering solenoid valve for an automobile engine according to claim 1, characterized in that: A rotating shaft is provided between the central connecting threaded column (11) and the extrusion moving plate (13), and the central connecting threaded column (11) and the extrusion moving plate (13) are rotatably connected through the rotating shaft.

5. The fuel metering solenoid valve for an automobile engine according to claim 1, characterized in that: The fuel metering solenoid valve body (1) is provided with a rear connection port (3) at the rear side, and both the rear connection port (3) and the front connection port (2) are provided with internal threads.

6. The fuel metering solenoid valve for an automobile engine according to claim 1, characterized in that: An upper connecting electromagnetic outer structure (4) is provided on the upper side of the fuel metering solenoid valve body (1). The upper connecting electromagnetic outer structure (4) and the fuel metering solenoid valve body (1) are connected by screws passing through the central connecting piece (5) provided therebetween.

7. A fuel metering solenoid valve for an automobile engine according to claim 6, characterized in that: A side connector (6) is provided on the rear side of the upper electromagnetic outer structure (4), and a nut structure and an external threaded tube are provided on the side connector (6).

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