Engine matching fuel electromagnetic valve
By introducing a soft magnetic adsorption component and a layered filter component into the engine's fuel solenoid valve, the problems of inconvenient control and poor sealing of the solenoid valve are solved, achieving rapid control and improved sealing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU EV BLUE ELECTRONICS TECH CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-07-10
AI Technical Summary
Existing engine fuel solenoid valves are inconvenient and slow to control, lack sufficient sealing sensitivity, and are prone to foreign objects causing poor sealing performance.
An engine-compatible fuel solenoid valve was designed, which uses a soft magnetic adsorption component and a layered filter component. The soft magnetic adsorption component is attracted by the electromagnetic coil to generate the valve opening and closing action, and the layered filter component improves the sealing performance.
This achieves rapid control and improved sealing of the solenoid valve, reduces valve gaps, and enhances the sealing effect.
Smart Images

Figure CN224479353U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of solenoid valve technology, and in particular to a fuel solenoid valve for engine use. Background Technology
[0002] Solenoid valves are support devices used for the control and detection of gasoline engine fuel systems. They are used in industrial control systems to adjust the direction, flow, speed and other parameters of the medium. Solenoid valves can be used with different circuits to achieve the desired control, and the control accuracy and flexibility can be guaranteed. With the continuous development of technology, people have higher and higher requirements for the manufacturing process of solenoid valves.
[0003] Existing solenoid valves have certain drawbacks. First, they are not easy to control quickly and conveniently, which is not conducive to user operation. Second, their structure is relatively simple, and foreign objects can easily accumulate in the valve body, causing gaps when the valve closes, reducing the sealing effect, and negatively impacting actual use. Therefore, we propose an engine-compatible fuel solenoid valve. Utility Model Content
[0004] Technical problem solved: In view of the shortcomings of the prior art, this utility model provides a fuel solenoid valve for engines, which is equipped with a soft magnetic adsorption component and a layered filter component, which can facilitate and better control the opening and closing of the valve body. When the coil is energized, the internal soft magnetic material is magnetized and they attract each other, thereby generating the opening and closing action of the valve. It is simple and fast, and can also increase the filtration effect of the valve body and make the seal tighter, which can effectively solve the problems in the background art.
[0005] Technical Solution: To achieve the above objectives, the technical solution adopted by this utility model is as follows: an engine-compatible fuel solenoid valve, comprising a solenoid valve body, a battery mounted on the top of the solenoid valve body, a mounting plate mounted on the side wall of the solenoid valve body, a mounting bracket mounted on the outer side of the solenoid valve body, an electromagnetic drive assembly mounted on the mounting bracket, an inlet connected to one side of the solenoid valve body, an outlet connected to the other side of the solenoid valve body, a base positioned at the bottom of the solenoid valve body, a fixed seat mounted in the middle of the solenoid valve body, a connector and an electromagnetic coil mounted between the fixed seat and the solenoid valve body, an electrical wire connected between the connector and the battery, a soft magnet disposed at the bottom of the fixed seat, a spring assembly and a damper mounted between the fixed seat and the soft magnet, a valve stem mounted at the bottom of the soft magnet, a valve seat mounted at the bottom of the valve stem, a valve chamber disposed at the bottom of the solenoid valve body between the inlet and the outlet, and a filter assembly mounted inside the valve chamber near the inlet.
[0006] Preferably, the filter assembly includes a coarse filter, a pre-filter chamber, a fine filter, a post-filter chamber, a sealing ring, and a fine filter. The post-filter chamber is located on the surface of the fine filter, the fine filter is located on the surface of the post-filter chamber, the pre-filter chamber is located on the surface of the fine filter, the coarse filter is located on the surface of the pre-filter, and the sealing ring is located at both ends of the coarse filter, the pre-filter chamber, the fine filter, the post-filter, and the fine filter.
[0007] Preferably, the solenoid valve body is integrally formed with the inlet and outlet, the inlet and outlet are connected by a valve cavity, and the inlet, valve cavity and outlet are interconnected.
[0008] Preferably, when the solenoid valve is closed, the spring assembly and damper press down on the soft magnet, and the soft magnet presses down on the valve stem and valve seat. At this time, the valve seat enters the valve cavity to seal and close.
[0009] Preferably, when the solenoid valve opens and closes, the battery powers the connector and the solenoid coil through the electrical wire. After the solenoid coil is powered, it magnetizes the soft magnet and attracts and positions itself with the soft magnet. The soft magnet drives the valve stem and valve seat to rise, at which point the valve seat leaves the valve cavity and opens and closes.
[0010] Preferably, the coarse filter, the pre-filter chamber, the fine filter, the post-filter chamber, and the fine filter are fixed to the sealing ring by spot welding.
[0011] Beneficial Effects: Compared with the prior art, this utility model provides an engine-compatible fuel solenoid valve with the following beneficial effects: This engine-compatible fuel solenoid valve is equipped with a soft magnetic adsorption component and a layered filtration component, which can facilitate better control of the valve body's opening and closing. When the coil is energized, the internal soft magnetic material is magnetized, causing them to attract each other, thereby generating the valve opening and closing action. This is simple and fast, and can also increase the filtration effect of the valve body. When the solenoid valve is closed, the spring component and damper press down on the soft magnetic material, which in turn presses down on the valve stem and valve seat. At this time, the valve seat enters the valve cavity for sealing and closure. When the solenoid valve is open or closed, the battery energizes the connector and the solenoid coil through the electrical wire. After the solenoid coil is energized, it magnetizes the soft magnetic material and attracts and positions it. The soft magnetic material drives the valve stem and valve seat to rise, at which time the valve seat leaves the valve cavity for opening and closing, making the seal tighter. The entire solenoid valve has a simple structure, is easy to operate, and performs better than traditional methods. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of a fuel solenoid valve for an engine according to the present invention.
[0013] Figure 2 This is a schematic diagram of the internal opening and closing state of a fuel solenoid valve for an engine according to the present invention.
[0014] Figure 3 This is a schematic diagram of the internal closed state of a fuel solenoid valve for an engine according to the present invention.
[0015] Figure 4 This is a structural schematic diagram of point A in an engine-mounted fuel solenoid valve according to the present invention.
[0016] In the diagram: 1. Solenoid valve body; 2. Mounting plate; 3. Inlet; 4. Base; 5. Outlet; 6. Electromagnetic drive assembly; 7. Mounting bracket; 8. Battery; 9. Electrical wire; 10. Connector; 11. Solenoid coil; 12. Spring assembly; 13. Soft magnet; 14. Valve stem; 15. Valve seat; 16. Valve chamber; 17. Filter assembly; 18. Damper; 19. Mounting base; 20. Coarse filter screen; 21. Front filter chamber; 22. Fine filter screen; 23. Rear filter chamber; 24. Sealing ring; 25. Fine filter screen. Detailed Implementation
[0017] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings and specific embodiments. However, those skilled in the art will understand that the embodiments described below are only some embodiments of this utility model, not all embodiments, and are only used to illustrate this utility model, and should not be regarded as limiting the scope of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Where specific conditions are not specified in the embodiments, conventional conditions or conditions recommended by the manufacturer shall be followed. Where the manufacturers of reagents or instruments are not specified, they are all conventional products that can be purchased commercially.
[0018] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0020] like Figure 1-4 As shown, an engine-compatible fuel solenoid valve includes a solenoid valve body 1, a battery 8 mounted on the top of the solenoid valve body 1, a mounting plate 2 mounted on the side wall of the solenoid valve body 1, a mounting bracket 7 mounted on the outer side of the solenoid valve body 1, an electromagnetic drive assembly 6 mounted on the mounting bracket 7, a liquid inlet 3 connected to one side of the solenoid valve body 1, a liquid outlet 5 connected to the other side of the solenoid valve body 1, a base 4 positioned at the bottom of the solenoid valve body 1, a fixing seat 19 mounted in the middle of the solenoid valve body 1, a connector 10 and an electromagnetic coil 11 installed between the fixing seat 19 and the solenoid valve body 1, and an electrical wire 9 connected between the connector 10 and the battery 8. The valve body is equipped with a soft magnet 13. A spring assembly 12 and a damper 18 are installed between the fixed base 19 and the soft magnet 13. A valve stem 14 is installed at the bottom of the soft magnet 13, and a valve seat 15 is installed at the bottom of the valve stem 14. A valve chamber 16 is provided at the bottom of the solenoid valve body 1 between the inlet 3 and the outlet 5. A filter assembly 17 is installed inside the valve chamber 16 near the inlet 3. The filter assembly includes a soft magnet adsorption assembly and a layered filter assembly, which can facilitate and better control the opening and closing of the valve body. When the coil is energized, the internal soft magnets are magnetized, causing them to attract each other, thereby generating the opening and closing action of the valve. This is simple and fast, and can also increase the filtration effect of the valve body, making the seal tighter.
[0021] Furthermore, the filter assembly 17 includes a coarse filter 20, a front filter chamber 21, a fine filter 22, a rear filter chamber 23, a sealing ring 24, and a fine filter 25. The rear filter chamber 23 is located on the surface of the fine filter 25, the fine filter 22 is located on the surface of the rear filter chamber 23, the front filter chamber 21 is located on the surface of the fine filter 22, the coarse filter 20 is located on the surface of the front filter chamber 21, and the sealing ring 24 is located at both ends of the coarse filter 20, the front filter chamber 21, the fine filter 22, the rear filter chamber 23, and the fine filter 25.
[0022] Furthermore, the solenoid valve body 1 is integrally formed with the inlet 3 and the outlet 5, and the inlet 3 and the outlet 5 are connected by the valve cavity 16, and the inlet 3, the valve cavity 16 and the outlet 5 are interconnected.
[0023] Furthermore, when the solenoid valve is closed, the spring assembly 12 and the damper 18 press down the soft magnet 13, and the soft magnet 13 presses down the valve stem 14 and the valve seat 15. At this time, the valve seat 15 enters the valve cavity 16 to seal and close.
[0024] Furthermore, when the solenoid valve opens and closes, the battery 8 supplies power to the connector 10 and the solenoid coil 11 through the electrical wire 9. After the solenoid coil 11 is energized, it magnetizes the soft magnet 13 and attracts and positions itself with the soft magnet 13. The soft magnet 13 drives the valve stem 14 and the valve seat 15 to rise. At this time, the valve seat 15 leaves the valve cavity 16 and opens and closes.
[0025] Furthermore, the coarse filter 20, the front filter chamber 21, the fine filter 22, the rear filter chamber 23, and the fine filter 25 are fixed to the sealing ring 24 by spot welding.
[0026] Working Principle: This utility model includes a solenoid valve body 1, mounting plate 2, inlet 3, base 4, outlet 5, electromagnetic drive assembly 6, mounting bracket 7, battery 8, electrical wire 9, connector 10, electromagnetic coil 11, spring assembly 12, soft magnet 13, valve stem 14, valve seat 15, valve chamber 16, filter assembly 17, damper 18, fixing base 19, coarse filter screen 20, front filter chamber 21, fine filter screen 22, rear filter chamber 23, sealing ring 24, and fine filter screen 25. It features a soft magnet adsorption assembly and a layered filtration assembly, enabling convenient and better control of the valve body's opening and closing. When the coil is energized, the internal soft magnet... Magnets attract each other, thus generating the opening and closing action of the valve. This is simple and fast, and can also increase the filtration effect of the valve body and make the seal tighter. When the solenoid valve is closed, the spring assembly 12 and the damper 18 press down the soft magnet 13, and the soft magnet 13 presses down the valve stem 14 and the valve seat 15. At this time, the valve seat 15 enters the valve cavity 16 to seal and close. When the solenoid valve is open or closed, the battery 8 energizes the connector 10 and the solenoid coil 11 through the electrical wire 9. After the solenoid coil 11 is energized, it magnetizes the soft magnet 13 and attracts and positions it. The soft magnet 13 drives the valve stem 14 and the valve seat 15 to rise. At this time, the valve seat 15 leaves the valve cavity 16 to open or close.
[0027] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. An engine-mounted fuel solenoid valve, comprising a solenoid valve body (1), characterized in that: A battery (8) is installed on the top of the solenoid valve body (1). A mounting plate (2) is installed on the side wall of the solenoid valve body (1). A mounting bracket (7) is installed on the outside of the solenoid valve body (1). An electromagnetic drive assembly (6) is installed on the mounting bracket (7). An inlet (3) is connected to one side of the solenoid valve body (1), and an outlet (5) is connected to the other side of the solenoid valve body (1). A base (4) is positioned at the bottom of the solenoid valve body (1). A fixing seat (19) is installed in the middle of the solenoid valve body (1). A connector (10) is installed between the fixing seat (19) and the solenoid valve body (1). An electromagnetic coil (11) is provided. An electrical wire (9) is connected between the contactor (10) and the battery (8). A soft magnet (13) is provided at the bottom of the fixed base (19). A spring assembly (12) and a damper (18) are installed between the fixed base (19) and the soft magnet (13). A valve stem (14) is installed at the bottom of the soft magnet (13). A valve seat (15) is installed at the bottom of the valve stem (14). A valve chamber (16) is provided at the bottom of the electromagnetic valve body (1) between the liquid inlet (3) and the liquid outlet (5). A filter assembly (17) is installed inside the valve chamber (16) near the liquid inlet (3).
2. The engine-mounted fuel solenoid valve according to claim 1, characterized in that: The filter assembly (17) includes a coarse filter (20), a front filter chamber (21), a fine filter (22), a rear filter chamber (23), a sealing ring (24), and a fine filter (25). The rear filter chamber (23) is located on the surface of the fine filter (25), the fine filter (22) is located on the surface of the rear filter chamber (23), the front filter chamber (21) is located on the surface of the fine filter (22), the coarse filter (20) is located on the surface of the front filter chamber (21), and the sealing ring (24) is located at both ends of the coarse filter (20), the front filter chamber (21), the fine filter (22), the rear filter chamber (23), and the fine filter (25).
3. The engine-mounted fuel solenoid valve according to claim 1, characterized in that: The solenoid valve body (1) is integrally formed with the inlet (3) and outlet (5). The inlet (3) and outlet (5) are connected by a valve chamber (16). The inlet (3), valve chamber (16) and outlet (5) are interconnected.
4. The engine-mounted fuel solenoid valve according to claim 1, characterized in that: When the solenoid valve is closed, the spring assembly (12) and the damper (18) press down the soft magnet (13), and the soft magnet (13) press down the valve stem (14) and the valve seat (15). At this time, the valve seat (15) enters the valve cavity (16) for sealing and closure.
5. The engine-mounted fuel solenoid valve according to claim 1, characterized in that: When the solenoid valve is opened and closed, the battery (8) supplies power to the connector (10) and the solenoid coil (11) through the electrical wire (9). After the solenoid coil (11) is energized, it magnetizes the soft magnet (13) and attracts and positions itself with the soft magnet (13). The soft magnet (13) drives the valve stem (14) and the valve seat (15) to rise. At this time, the valve seat (15) leaves the valve cavity (16) and opens and closes.
6. The engine-mounted fuel solenoid valve according to claim 2, characterized in that: The coarse filter (20), the front filter chamber (21), the fine filter (22), the rear filter chamber (23), and the fine filter (25) are fixed to the sealing ring (24) by spot welding.