Fuel injector control valve

Abstract

The utility model discloses an oil sprayer control valve, its characterized in that, including shell, solenoid valve body, adjusting pad, control valve body, armature assembly, spring cover, cushion block cover and screw, the shell integrated and is equipped with the installation cavity in the shell, and the solenoid valve body is set up in the first side in the installation cavity through the snap spring, and the first end of solenoid valve body passes through the snap spring and goes out the first side of installation cavity, adjusting pad sets up in the installation cavity and is set up with the first end of solenoid valve body and is pasted, control valve body sets up in the installation cavity and is set up with adjusting pad and is pasted, armature assembly sets up in adjusting pad and the first end of armature assembly and is set up with the first end of solenoid valve body and is pasted, and the second end of armature assembly goes out the shell through control valve body, and the spring is set up in control valve body, and the spring cover is set up on armature assembly. The utility model has the advantages of adopting integrated design, and need not secondary processing, and the production yield is high.

Description

Technical Field

[0001] This utility model belongs to the field of control valve technology, and specifically relates to an injector control valve. Background Technology

[0002] The fuel injector control valve is a core control element in the fuel injection system. It is primarily used to precisely regulate the injection timing, injection quantity, and injection pattern, ensuring optimal fuel atomization, combustion efficiency, and emissions performance. It is widely used in the fuel systems of diesel and gasoline direct injection engines. The main types include electromagnetic control valves and piezoelectric control valves. Electromagnetic control valves rely on electromagnetic force to drive the valve core; they have a simple structure and fast response, making them the mainstream type of fuel injector control valve, suitable for low-to-medium pressure fuel systems. Piezoelectric control valves use piezoelectric ceramics as the driving element, offering extremely fast response and enabling more precise multiple injections. They are suitable for high-pressure common rail fuel systems, but are more expensive.

[0003] The existing fuel injector control valve adopts a split design, which makes it difficult to guarantee the dimensions during the production process, requiring secondary processing and resulting in a low product yield. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an integrated design for an injector control valve that reduces secondary processing and achieves high production yield.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: Injector control valve, including: The outer casing is integrally formed and has an internal mounting cavity. The solenoid valve body is disposed on the first side of the mounting cavity via a snap ring, and the first end of the solenoid valve body passes through the snap ring and protrudes from the first side of the mounting cavity. An adjusting shim is set inside the mounting cavity and is fitted to the first end of the solenoid valve body; The control valve body is housed within the mounting cavity and fitted to the adjusting shim. An armature assembly is disposed within an adjusting pad, with its first end fitting against the first end of the solenoid valve body, and its second end extending through the control valve body and out of the housing. A spring is fitted inside the control valve body, and the spring is fitted onto the armature assembly; A spring sleeve is fitted onto the armature assembly and is designed to fit snugly against the spring. A spacer sleeve is fitted onto the spring sleeve and extends out of the outer casing; A spacer block is fitted onto the armature assembly and is fitted snugly to fit the spacer block sleeve. And screws, which are connected to the second end of the armature assembly and fit against the pad.

[0006] Preferably, a housing rubber ring is fitted on one side of the outer wall of the housing.

[0007] Preferably, a solenoid valve rubber ring is fitted on one side of the outer wall of the solenoid valve body, and the solenoid valve rubber ring is located inside the outer shell.

[0008] Preferably, it also includes a lower gasket, which is sleeved inside the control valve body and fitted against the spring.

[0009] Preferably, the armature assembly is made of low-carbon alloy steel.

[0010] By adopting the above technical solution, this utility model has the following beneficial effects: The outer shell of this utility model is integrally molded, and the armature assembly, control valve body and other structures are all set inside the outer shell. Compared with the prior art, the outer shell is processed and molded in one piece, which effectively ensures the dimensional processing accuracy, reduces secondary processing, reduces processing costs, increases product yield, and facilitates mass production. In summary, this utility model has the advantages of adopting an integrated design, requiring no secondary processing, and achieving a high production yield. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1 The main view; Figure 3 yes Figure 2 A cross-sectional view along the AA direction; The components include: 1. Outer shell; 2. Solenoid valve body; 3. Adjusting shim; 4. Control valve body; 5. Armature assembly; 6. Spring sleeve; 7. Pad sleeve; 8. Pad; 9. Screw; 10. Spring; 11. Lower washer; 12. Outer shell rubber ring; 13. Solenoid valve rubber ring; and 14. Snap ring. Detailed Implementation

[0012] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0013] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0014] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0015] 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.

[0016] 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.

[0017] Example 1 In this embodiment, an injector control valve is proposed. The structure is designed as a whole, which solves the problem of easy loosening of the split design in the prior art. The integrated manufacturing and processing effectively ensures the processing accuracy, reduces secondary processing, reduces processing costs, improves product yield, and facilitates mass production.

[0018] like Figures 1-3 As shown, in one embodiment of this utility model, the injector control valve includes a housing 1, a solenoid valve body 2, an adjusting shim 3, a control valve body 4, an armature assembly 5, a spring sleeve 6, a shim sleeve 7, a shim 8, and a screw 9. The housing 1 is integrally formed and has an installation cavity inside. The solenoid valve body 2 is disposed on the first side of the installation cavity through a retaining ring 14, and the first end of the solenoid valve body 2 passes through the retaining ring 14 and protrudes from the first side of the installation cavity. Specifically... Figure 1In the mounting cavity, the solenoid valve body 2 is located in the left middle part of the mounting cavity. The adjusting shim 3 is disposed in the mounting cavity and is fitted with the first end of the solenoid valve body 2. The control valve body 4 is disposed in the mounting cavity and is fitted with the adjusting shim 3. The armature assembly 5 is disposed in the adjusting shim 3, and the first end of the armature assembly 5 is fitted with the first end of the solenoid valve body 2. The second end of the armature assembly 5 extends out of the outer shell 1 through the control valve body 4. A spring 10 is sleeved inside the control valve body 4 and is sleeved on the armature assembly 5. The control valve body 4 has a columnar structure inside. Furthermore, the columnar structure is hollow inside, and the spring 10 is sleeved on the columnar structure. The rightmost side of the columnar structure is located on the leftmost side of the rightmost part of the armature assembly 5. This utility model also includes a lower gasket 11, which is sleeved inside the control valve body 4 and fits against the spring 10. The spring sleeve 6 is sleeved on the armature assembly 5 and fits against the spring 10. The pad sleeve 7 is sleeved on the spring sleeve 6 and extends out of the outer shell 1. The pad 8 is sleeved on the armature assembly 5 and fits against the pad sleeve 7. The screw 9 is connected to the second end of the armature assembly 5 and fits against the pad 8. In practical use, this utility model is used to control the fuel injection action of the fuel injector. The ECU (electronic control unit) sends an electrical signal to the solenoid valve body 2, which generates electromagnetic force to attract the armature assembly 5. The engagement stroke of the armature assembly 5 is adjusted by the adjusting shim 3, and the fuel injection is opened or closed at a specific time.

[0019] Please continue to refer to Figure 3 The outer wall of the outer shell 1 of this utility model is fitted with a shell rubber ring 12 on one side, and the outer wall of the solenoid valve body 2 is fitted with a solenoid valve rubber ring 13 on one side, and the solenoid valve rubber ring 13 is located inside the outer shell 1. The armature assembly 5 is made of low carbon alloy steel.

[0020] In the actual production of this utility model, the outer shell 1 is integrally formed, avoiding the use of a split design, reducing secondary processing, effectively overcoming the problem of easy loosening of the split design, and resulting in a higher production yield.

[0021] This embodiment does not impose any limitation on the shape, material, structure, etc. of this utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model shall fall within the protection scope of this utility model.

Claims

1. An injector control valve, characterized in that, include: The outer casing is integrally formed and has an internal mounting cavity. The solenoid valve body is disposed on the first side of the mounting cavity via a snap ring, and the first end of the solenoid valve body passes through the snap ring and protrudes from the first side of the mounting cavity. An adjusting shim is set inside the mounting cavity and is fitted to the first end of the solenoid valve body; The control valve body is housed within the mounting cavity and fitted to the adjusting shim. An armature assembly is disposed within an adjusting pad, with its first end fitting against the first end of the solenoid valve body, and its second end extending through the control valve body and out of the housing. A spring is fitted inside the control valve body, and the spring is fitted onto the armature assembly; A spring sleeve is fitted onto the armature assembly and is designed to fit snugly against the spring. A spacer sleeve is fitted onto the spring sleeve and extends out of the outer casing; A spacer block is fitted onto the armature assembly and is fitted snugly to fit the spacer block sleeve. And screws, which are connected to the second end of the armature assembly and fit against the pad.

2. The injector control valve according to claim 1, characterized in that: A rubber ring is fitted onto one side of the outer wall of the outer casing.

3. The injector control valve according to claim 1, characterized in that: The outer wall of the solenoid valve body is fitted with a solenoid valve rubber ring, which is located inside the outer shell.

4. The injector control valve according to claim 1, characterized in that: It also includes a lower gasket, which is fitted inside the control valve body and is in contact with the spring.

5. The injector control valve according to claim 1, characterized in that: The armature assembly is made of low-carbon alloy steel.

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