A miniaturized fuel injector valve assembly structure

Abstract

This utility model relates to a miniaturized fuel injector valve assembly structure, belonging to the field of fuel injector technology. It includes a fixed plate, a valve body disposed on the outer side of the fixed plate, a fuel injector nozzle disposed outside the valve body, a movable component disposed on the side of the valve body near the fixed plate, and an adjustment assembly disposed between the valve body and the fixed plate. The adjustment assembly includes an adjustment sleeve hinged to the outer wall of the fixed plate and a connecting rod hinged to the outer wall of the valve body. The connecting rod extends into the adjustment sleeve, and a slider extending through to the outer side of the adjustment sleeve is fixedly connected to the outer wall of the connecting rod. A connecting piece is elastically connected to the upper side of the slider, and a limit block is fixedly connected to the bottom of the connecting piece. This miniaturized fuel injector valve assembly structure allows the valve body to be fixedly mounted on the cylinder head via the fixed plate. The adjustment assembly enables adjustment of the fuel injector nozzle angle, improving installation flexibility and providing convenience.

Description

Technical Field

[0001] This utility model relates to the field of fuel injector technology, specifically to a miniaturized fuel injector valve assembly structure. Background Technology

[0002] Fuel injectors are precision components requiring extremely high machining accuracy. They must have a wide dynamic flow range, strong anti-clogging and anti-contamination capabilities, and excellent atomization performance. The injector receives injection pulse signals from the ECU and precisely controls the fuel injection quantity. The spray characteristics of the injector include atomization particle size, fuel mist distribution, fuel jet direction, range, and diffusion cone angle. These characteristics must meet the requirements of the diesel engine combustion system to ensure optimal air-fuel mixture formation and combustion, resulting in high power and thermal efficiency.

[0003] The fuel injector mainly consists of the injector nozzle and the fuel injector valve assembly. Its installation position and angle on the cylinder head depend on the combustion chamber design. Existing fuel injectors, once installed and fixed, also maintain a fixed injector nozzle angle, making it impossible to adjust the installation angle according to the combustion chamber structure. This causes inconvenience during actual installation. Therefore, a miniaturized fuel injector valve assembly structure is proposed to solve the aforementioned problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a miniaturized injector valve assembly structure, which has advantages such as easy angle adjustment. It solves the problem that after the existing injectors are installed and fixed, the nozzle angle also remains fixed, making it impossible to adjust the installation angle according to the combustion chamber structure, which causes inconvenience in actual installation.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a miniaturized fuel injector valve assembly structure, including a fixed plate, a valve body is provided on the outer side of the fixed plate, a fuel injector nozzle is provided on the outer side of the valve body, a movable part is provided on the side of the valve body near the fixed plate, and an adjustment assembly is also provided between the valve body and the fixed plate.

[0006] The adjusting assembly includes an adjusting sleeve hinged to the outer wall of a fixed plate and a connecting rod hinged to the outer wall of a valve body. The connecting rod extends into the interior of the adjusting sleeve. A slider extending through to the outside of the adjusting sleeve is fixedly connected to the outer wall of the connecting rod. A connecting piece is elastically connected to the upper side of the slider. A limit block is fixedly connected to the bottom of the connecting piece. A plurality of slots adapted to the limit blocks are equidistantly arranged on the outer wall of the adjusting sleeve. The limit block cooperates with one of the slots.

[0007] Furthermore, one end of the movable component is hinged to the outer wall of the fixed plate, and the other end of the movable component is fixedly connected to the outer wall of the valve body.

[0008] Furthermore, a movable groove is provided on the side wall of the adjusting sleeve, and the slider passes through the inner side of the movable groove.

[0009] Furthermore, there are two sliders and two movable slots. The two sliders are symmetrically distributed on both sides of the connecting rod, and the two movable slots are symmetrically distributed on both sides of the adjusting sleeve.

[0010] Furthermore, an adjusting rod extending through to the lower side of the slider is fixedly connected to the bottom of the connecting piece, and a support piece is fixedly connected to the lower end of the adjusting rod.

[0011] Furthermore, a spring is provided on the upper side of the support plate and sleeved on the outer wall of the adjusting rod, with the upper end of the spring abutting against the bottom of the slider.

[0012] Furthermore, the valve body has a flexible hose at its inlet, which is a metal flexible hose. The end of the flexible hose away from the valve body is connected to a fixed pipe, and a connector is provided on the outside of the fixed pipe.

[0013] Furthermore, a fixing block is fixedly connected to the outer wall of the fixing plate, and the fixing block is fixedly connected to the outer wall of the fixing tube.

[0014] Furthermore, the fixing plate has multiple mounting blocks on its side, and the mounting blocks have through holes on their inner sides.

[0015] Compared with the prior art, the present invention provides a miniaturized injector valve assembly structure, which has the following advantages:

[0016] This miniaturized injector valve assembly structure has the valve body fixed to the cylinder head by a fixing plate. The angle of the injector nozzle can be adjusted by the set adjustment component, which improves the installation flexibility and provides convenience. It solves the problem that the injector nozzle angle of the existing injectors remains fixed after installation, and it is impossible to adjust the installation angle according to the combustion chamber structure, which causes inconvenience in the actual installation process. Attached Figure Description

[0017] Figure 1 This is a three-dimensional view of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the adjustment component of this utility model;

[0019] Figure 3 This is a schematic diagram of the connecting rod of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the hose and connector of this utility model.

[0021] In the diagram: 1. Fixed plate; 2. Valve body; 3. Injector nozzle; 4. Moving part; 5. Adjusting sleeve; 6. Connecting rod; 7. Slider; 8. Moving groove; 9. Adjusting rod; 10. Connecting piece; 11. Limiting block; 12. Slot; 13. Hose; 14. Fixed pipe; 15. Connector; 16. Fixed block; 17. Support piece; 18. Spring; 19. Mounting block. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1 to 4 This embodiment of a miniaturized fuel injector valve assembly structure includes a fixed plate 1, a valve body 2 disposed on the outer side of the fixed plate 1, a fuel injector 3 disposed on the outer side of the valve body 2, and a movable member 4 disposed on the side of the valve body 2 near the fixed plate 1. One end of the movable member 4 is hinged to the outer wall of the fixed plate 1, and the other end of the movable member 4 is fixedly connected to the outer wall of the valve body 2. The valve body 2 can be rotated through the hinge point between the movable member 4 and the fixed plate 1 to adjust the angle of the fuel injector 3.

[0024] In this embodiment, an adjustment assembly is also provided between the valve body 2 and the fixing plate 1. The adjustment assembly includes an adjustment sleeve 5 hinged to the outer wall of the fixing plate 1 and a connecting rod 6 hinged to the outer wall of the valve body 2. The connecting rod 6 extends into the interior of the adjustment sleeve 5. A slider 7 extending through to the outside of the adjustment sleeve 5 is fixedly connected to the outer wall of the connecting rod 6. A connecting piece 10 is elastically connected to the upper side of the slider 7. A limiting block 11 is fixedly connected to the bottom of the connecting piece 10. Several slots 12 that are adapted to the limiting blocks 11 are equidistantly arranged on the outer wall of the adjustment sleeve 5. The limiting block 11 cooperates with one of the slots 12. When the limiting block 11 cooperates with one of the slots 12, the length between the connecting rod 6 and the adjustment sleeve 5 is fixed, thereby restricting the movement of the valve body 2 and fixing the angle of the fuel injector 3.

[0025] The adjusting sleeve 5 has a movable groove 8 on its side wall, and a slider 7 passes through the inner side of the movable groove 8. There are two sliders 7 and two movable grooves 8, with the two sliders 7 symmetrically distributed on both sides of the connecting rod 6 and the two movable grooves 8 symmetrically distributed on both sides of the adjusting sleeve 5. The cooperation between the sliders 7 and the movable grooves 8 guides the connecting rod 6, improving the structural stability.

[0026] It should be noted that the bottom of the connecting piece 10 is fixedly connected to an adjusting rod 9 that extends through to the lower side of the slider 7. The lower end of the adjusting rod 9 is fixedly connected to a support piece 17. The upper side of the support piece 17 is provided with a spring 18 that is sleeved on the outer wall of the adjusting rod 9. The upper end of the spring 18 abuts against the bottom of the slider 7. Through the cooperation of the support piece 17 and the spring 18, the position of the adjusting rod 9 can be elastically adjusted, thereby realizing the elastic adjustment of the position of the connecting piece 10.

[0027] In this embodiment, a flexible hose 13 is provided at the inlet of the valve body 2. The flexible hose 13 is a metal flexible hose, which can prevent it from interfering with the movement and adjustment of the valve body 2. A fixed pipe 14 is connected to the end of the flexible hose 13 away from the valve body 2. A fixed block 16 is fixedly connected to the outer wall of the fixed plate 1. The fixed block 16 is fixedly connected to the outer wall of the fixed pipe 14. A connector 15 is provided on the outside of the fixed pipe 14 for connecting the oil pipeline.

[0028] It should be noted that multiple mounting blocks 19 are provided on the side of the fixing plate 1, and through holes are provided on the inner side of the mounting blocks 19 for mounting the fixing plate 1 on the cylinder head.

[0029] The working principle of the above embodiments is as follows:

[0030] In use, pulling the connecting piece 10 causes the limiting block 11 to separate from the adjusting sleeve 5, and causes the support piece 17 at the bottom of the adjusting rod 9 to press the spring 18 upward, thus releasing the limiting of the slider 7. The length between the connecting rod 6 and the adjusting sleeve 5 can be adjusted, allowing the valve body 2 to flip through the hinge point between the movable part 4 and the fixed plate 1, thereby adjusting the angle of the fuel injector 3. When the appropriate angle is reached, the connecting piece 10 is released, allowing the spring 18 to elastically reset it, so that the limiting block 11 engages with the corresponding slot 12, thereby fixing the length between the connecting rod 6 and the adjusting sleeve 5, which restricts the movement of the valve body 2, thus fixing the angle of the fuel injector 3 and completing the angle adjustment.

[0031] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods, and any method that can achieve its beneficial effects can be implemented. It should be noted that the orientation or positional relationship indicated herein is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description, and is not intended to 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 application.

Claims

1. A miniaturized fuel injector valve assembly structure, characterized in that: Includes a fixed plate (1), a valve body (2) is provided on the outside of the fixed plate (1), an oil injector (3) is provided on the outside of the valve body (2), a movable part (4) is provided on the side of the valve body (2) close to the fixed plate (1), and an adjustment component is also provided between the valve body (2) and the fixed plate (1); The adjustment assembly includes an adjustment sleeve (5) hinged to the outer wall of the fixed plate (1) and a connecting rod (6) hinged to the outer wall of the valve body (2). The connecting rod (6) extends into the interior of the adjustment sleeve (5). A slider (7) extending through to the outside of the adjustment sleeve (5) is fixedly connected to the outer wall of the connecting rod (6). A connecting piece (10) is elastically connected to the upper side of the slider (7). A limiting block (11) is fixedly connected to the bottom of the connecting piece (10). A plurality of slots (12) adapted to the limiting block (11) are equidistantly arranged on the outer wall of the adjustment sleeve (5). The limiting block (11) cooperates with one of the slots (12).

2. The miniaturized fuel injector valve assembly structure according to claim 1, characterized in that: One end of the movable part (4) is hinged to the outer wall of the fixed plate (1), and the other end of the movable part (4) is fixedly connected to the outer wall of the valve body (2).

3. The miniaturized injector valve assembly structure according to claim 1, characterized in that: The adjusting sleeve (5) has a movable groove (8) on its side wall, and the slider (7) passes through the inside of the movable groove (8).

4. The miniaturized injector valve assembly structure according to claim 3, characterized in that: The number of sliders (7) and movable grooves (8) are both two. The two sliders (7) are symmetrically distributed on both sides of the connecting rod (6), and the two movable grooves (8) are symmetrically distributed on both sides of the adjusting sleeve (5).

5. The miniaturized injector valve assembly structure according to claim 1, characterized in that: The bottom of the connecting piece (10) is fixedly connected to an adjusting rod (9) that extends through to the lower side of the slider (7), and the lower end of the adjusting rod (9) is fixedly connected to a support piece (17).

6. The miniaturized injector valve assembly structure according to claim 5, characterized in that: The upper side of the support plate (17) is provided with a spring (18) sleeved on the outer wall of the adjusting rod (9), and the upper end of the spring (18) abuts against the bottom of the slider (7).

7. The miniaturized fuel injector valve assembly structure according to claim 1, characterized in that: The valve body (2) has a flexible hose (13) at its inlet. The flexible hose (13) is a metal flexible hose. A fixed pipe (14) is connected to one end of the flexible hose (13) away from the valve body (2). A connector (15) is provided on the outside of the fixed pipe (14).

8. The miniaturized injector valve assembly structure according to claim 7, characterized in that: A fixing block (16) is fixedly connected to the outer wall of the fixing plate (1), and the fixing block (16) is fixedly connected to the outer wall of the fixing tube (14).

9. The miniaturized injector valve assembly structure according to claim 1, characterized in that: The fixing plate (1) has multiple mounting blocks (19) on its side, and the mounting blocks (19) have through holes on their inner sides.

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