High-stability engine oil control valve

Abstract

The high-stability engine oil control valve comprises a valve cylinder, the valve cylinder is composed of an upper-layer valve cylinder body and a lower-layer valve cylinder body, the upper-layer valve cylinder body and the lower-layer valve cylinder body are detachably connected, and oil port ring grooves are formed in the upper-layer valve cylinder body and the lower-layer valve cylinder body; a filter screen fixing ring is arranged in the oil port ring groove, limiting blocks are fixedly connected to the upper surface and the lower surface of the filter screen fixing ring, and a limiting groove is formed in the inner wall of the oil port ring groove. According to the utility model, the upper-layer valve cylinder and the lower-layer valve cylinder are detachably connected, when the filter holes in the filter screen are blocked, the upper-layer valve cylinder and the lower-layer valve cylinder can be detached to clean filter residues, the operation is simple and convenient, the filter screen fixing rings are arranged in the valve cylinders, and the limiting blocks and the limiting grooves are used for limiting, so that the filter screen is more convenient to install.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile engine parts, in particular to a high-stability engine oil control valve. Background Art

[0002] The variable valve timing system is widely used in new automobile engines. It can improve engine power and torque, reduce fuel consumption and exhaust emissions. The oil control valve is an important component in the variable valve timing system. It switches the oil channel leading to the cam phaser and controls the oil flow according to the control signal sent by the engine control system, so as to achieve the purpose of accurately controlling the cam phaser angle. In order to prevent impurities in the oil channel from entering the oil control valve and causing the oil control valve to get stuck, most oil control valves are currently equipped with a filter structure at the oil inlet and outlet. The filter structure is set outside the valve sleeve inlet and outlet and is connected by welding or snap-on. The installation method and structure of the filter are prone to cold welding or poor snap-on during the assembly process. During the operation of the engine, when there is a large fluctuation in vibration or oil pressure, it is easy for the welding point to fall off and the filter to break, resulting in the filter being unable to filter the oil impurities. When replacing the oil control valve, the inner hole of the cylinder head will be scratched due to the breakage or shedding of the filter, and in severe cases, the cylinder body may even be scrapped.

[0003] For example, in the oil control valve described in patent application number CN201720280780.9, the filter screen will not be affected by the engine operating conditions and oil pressure fluctuations after installation, and will not break or fall off; the oil control valve will not scratch the inner hole of the cylinder head during maintenance and replacement, and the assembly is simple and low-cost, but there are still the following problems:

[0004] 1. The filter structure in the current high-stability oil control valve is difficult to install, and the internal filter structure is easily fixed in the outer oil outlet ring groove;

[0005] 2. The current high-stability oil control valve is difficult to clean when the filter residue on the filter increases and blocks the filter holes. Utility Model Content

[0006] The utility model aims to solve the shortcomings in the prior art and proposes a high-stability engine oil control valve.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: comprising a valve cylinder, the valve cylinder is composed of an upper valve cylinder and a lower valve cylinder, the upper valve cylinder and the lower valve cylinder are detachably connected, and the upper valve cylinder and the lower valve cylinder are both provided with oil port ring grooves;

[0008] A filter fixing ring is arranged inside the oil port ring groove, the upper surface and the lower surface of the filter fixing ring are fixedly connected to the limiting block, and the inner wall of the oil port ring groove is provided with a limiting groove.

[0009] As a further description of the above technical solution:

[0010] A sealing ring is fixedly connected to the lower surface of the upper valve cylinder, and the sealing ring is made of rubber material.

[0011] As a further description of the above technical solution:

[0012] A sealing groove is arranged inside the upper side wall of the lower valve cylinder. The sealing groove and the sealing ring have the same shape and cooperate with each other. The height of the sealing ring is slightly greater than the height of the sealing groove.

[0013] As a further description of the above technical solution:

[0014] A filter structure is arranged inside the filter fixing ring, and the filter holes inside the filter structure are arranged in a triangular shape.

[0015] As a further description of the above technical solution:

[0016] The left side wall of the filter fixing ring is fixedly connected with an oil guide groove, the outer diameter of the oil guide groove is equal to the inner diameter of the valve cylinder, and the inner diameter of the oil guide groove is equal to the inner diameter of the filter fixing ring.

[0017] As a further description of the above technical solution:

[0018] The upper valve cylinder and the lower valve cylinder are fixed by a plurality of connecting rings.

[0019] As a further description of the above technical solution:

[0020] The right side of the valve cylinder is threadedly connected with a valve cylinder cover, and the right side wall of the valve cylinder cover is provided with a through hole, and the diameter of the through hole is equal to the inner diameter of the valve cylinder.

[0021] As a further description of the above technical solution:

[0022] The outer diameter of the filter fixing ring is equal to the diameter of the oil port ring groove, and the limit block is configured as a rectangular parallelepiped perpendicular to the upper surface of the upper valve cylinder.

[0023] The utility model has the following beneficial effects:

[0024] 1. Compared with traditional technology, the valve cylinder in the high-stability oil control valve is divided into an upper valve cylinder and a lower valve cylinder. The upper and lower valve cylinders are detachably connected. When the filter holes on the filter screen are blocked, the upper and lower valve cylinders can be disassembled to clean the filter residue, which is simple and convenient.

[0025] 2. Compared with the traditional technology, the high-stability oil control valve is provided with a filter fixing ring, which is arranged inside the valve cylinder and is limited by a limit block and a limit groove, making the installation of the filter more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the high-stability oil control valve proposed by the utility model;

[0027] Figure 2 It is a top view and cross-sectional schematic diagram of the high-stability oil control valve proposed by the utility model;

[0028] Figure 3 This is a front schematic diagram of the high-stability oil control valve proposed by the utility model;

[0029] Figure 4 This is a schematic diagram of the installation of the high-stability oil control valve proposed by the utility model.

[0030] Legend:

[0031] 1. Upper valve cylinder; 2. Lower valve cylinder; 3. Connecting ring; 4. Oil port ring groove; 5. Sealing groove; 6. Limit block; 7. Filter fixing ring; 8. Valve cylinder cover; 9. Oil guide groove; 10. Filter structure; 11. Sealing ring; 12. Limit groove. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0034] Reference Figure 1-4 The utility model provides an embodiment: including a valve cylinder, characterized in that the valve cylinder is composed of an upper valve cylinder 1 and a lower valve cylinder 2, the upper valve cylinder 1 and the lower valve cylinder 2 are detachably connected, the upper valve cylinder 1 and the lower valve cylinder 2 are both provided with oil port ring grooves 4 inside, which are used to fix the filter fixing ring 7, the lower surface of the upper valve cylinder 1 is fixedly connected with a sealing ring 11, the sealing ring 11 is made of rubber material, the upper side wall of the lower valve cylinder 2 is provided with a sealing groove 5, the sealing groove 5 and the sealing ring 11 have the same shape and cooperate with each other, the upper valve cylinder 1 and the lower valve cylinder 2 are sealed, and the height of the sealing ring 11 is slightly greater than the height of the sealing groove 5 , so that the sealing between the upper valve cylinder 1 and the lower valve cylinder 2 is better, the upper valve cylinder 1 and the lower valve cylinder 2 are fixed by several connecting rings 3, and the right side of the valve cylinder is threadedly connected with a valve cylinder cover 8 for further fixing the upper valve cylinder 1 and the lower valve cylinder 2. A through hole is provided on the right side wall of the valve cylinder cover 8, and the diameter of the through hole is equal to the inner diameter of the valve cylinder, the outer diameter of the filter fixing ring 7 is equal to the diameter of the oil port ring groove 4, and the limit block 6 is set to be a rectangular parallelepiped perpendicular to the upper surface of the upper valve cylinder 1. The upper and lower valve cylinders are detachably connected. When the filter holes on the filter structure 10 are blocked, the upper and lower valve cylinders can be disassembled to clean the filter residue, which is simple and convenient.

[0035] A filter fixing ring 7 is arranged inside the oil port ring groove 4, and the upper and lower surfaces of the filter fixing ring 7 are fixedly connected to the limiting block 6. A limiting groove 12 is arranged on the inner wall of the oil port ring groove 4, and a filter structure 10 is arranged inside the filter fixing ring 7. The filter holes inside the filter structure 10 are arranged in a triangular shape. An oil guide groove 9 is fixedly connected to the left side wall of the filter fixing ring 7 to reduce the impact force on the filter fixing ring 7. The outer diameter of the oil guide groove 9 is equal to the inner diameter of the valve cylinder, and the oil guide groove 9 is equal to the inner diameter of the filter fixing ring 7. The filter fixing ring 7 is arranged inside the valve cylinder and is limited by the limiting block 6 and the limiting groove 12, so that the installation of the filter is more convenient.

[0036] Working principle: First, fix the filter fixing ring 7 to the limiting groove 12 inside the lower valve cylinder 2 through the limiting block 6, and make the oil guide groove 9 face the oil inlet, then close the upper valve cylinder 1 and the lower valve cylinder 2, so that the sealing ring 11 enters the sealing groove 5, and fix the limiting groove 12 inside the upper valve cylinder 1 to the limiting block 6 on the upper side of the filter fixing ring 7, then fix the upper valve cylinder 1 and the lower valve cylinder 2 through the connecting ring 3, and finally further fix the upper valve cylinder 1 and the lower valve cylinder 2 through the valve cylinder cover 8 to complete the installation of the control valve.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high stability oil control valve, including a valve cartridge, characterized in that: The valve cylinder is composed of an upper valve cylinder (1) and a lower valve cylinder (2); the upper valve cylinder (1) and the lower valve cylinder (2) are detachably connected, and oil port ring grooves (4) are provided inside the upper valve cylinder (1) and the lower valve cylinder (2); A filter fixing ring (7) is arranged inside the oil port ring groove (4), the upper surface and the lower surface of the filter fixing ring (7) are fixedly connected to a limiting block (6), and a limiting groove (12) is arranged on the inner wall of the oil port ring groove (4).

2. The high stability oil control valve according to claim 1, characterized in that: A sealing ring (11) is fixedly connected to the lower surface of the upper valve cylinder (1), and the sealing ring (11) is made of rubber material.

3. The high stability oil control valve according to claim 1, characterized in that: A sealing groove (5) is provided inside the upper side wall of the lower valve cylinder (2); the sealing groove (5) and the sealing ring (11) have the same shape and cooperate with each other; the height of the sealing ring (11) is slightly greater than the height of the sealing groove (5).

4. The high stability oil control valve according to claim 1, characterized in that: A filter structure (10) is arranged inside the filter fixing ring (7), and the filter holes inside the filter structure (10) are arranged in a triangular shape.

5. The high stability oil control valve according to claim 1, characterized in that: The left side wall of the filter fixing ring (7) is fixedly connected with an oil guide groove (9), the outer diameter of the oil guide groove (9) is equal to the inner diameter of the valve cylinder, and the inner diameter of the oil guide groove (9) is equal to the inner diameter of the filter fixing ring (7).

6. The high stability oil control valve according to claim 1, characterized in that: The upper valve cylinder (1) and the lower valve cylinder (2) are fixed via a plurality of connecting rings (3).

7. The high stability oil control valve according to claim 1, characterized in that: The right side of the valve cylinder is threadedly connected with a valve cylinder cover (8), and the right side wall of the valve cylinder cover (8) is provided with a through hole, the diameter of the through hole being equal to the inner diameter of the valve cylinder.

8. The high stability oil control valve according to claim 1, characterized in that: The outer diameter of the filter fixing ring (7) is equal to the diameter of the oil port ring groove (4), and the limit block (6) is configured as a rectangular parallelepiped perpendicular to the upper surface of the upper valve cylinder (1).

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