Lateral OCV valve structure with one-way structure
By designing a side OCV valve structure with a one-way structure, the problem of the need to purchase a single check valve assembly in the prior art is solved, and the prevention of engine oil return and the guarantee of oil inlet pressure are achieved, and the compactness and control accuracy of the structure are improved.
Patent Information
- Application Number
- CN202422426392.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-08
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-10-08
AI Technical Summary
In the prior art, side-mounted OCV valves require separate purchase of check valve components and installation in the oil control pipeline, resulting in high processing accuracy and increased cost.
A side-mounted OCV valve structure with its own one-way structure is designed. By setting up an advance chamber oil circuit, a hysteresis chamber oil circuit and an oil discharge port in the valve body, and fixedly installing a check valve assembly at the oil inlet. The combination of the magnetic core assembly and the return spring is used to realize the axial sliding of the valve core, adjust the oil in and out of the oil circuit, and prevent the oil from flowing back.
It effectively prevents the return of the engine oil, ensures the oil inlet pressure, reduces the structural weight, improves the space utilization and control accuracy, and reduces the oil consumption during the machine operation.
Smart Images
Figure CN223035157U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electromagnetic structure design of automobile engines. Specifically, it relates to a side-mounted OCV valve structure with a built-in one-way structure. Background Technique
[0002] At present, most engines use externally inserted oil control solenoid valves. In addition, a one-way valve is added at the engine fuel inlet pipe to separately control the oil circuit. Adding a one-way valve structure to the engine can prevent the insufficient fuel supply caused by the reverse flow of engine oil in the pipeline.
[0003] The following problems exist in the prior art:
[0004] In the prior art, for most manufacturers' side-mounted OCV valves, after separately purchasing a one-way valve assembly, the one-way valve structure is assembled at the oil port of the oil control pipeline. This not only requires high precision in the processing of the engine fuel inlet pipeline, but also increases the cost of separately purchasing the one-way valve. Content of the Utility Model
[0005] In view of the problems in the related art, the utility model provides a side-mounted OCV valve structure with a built-in one-way structure to overcome the above technical problems existing in the prior related art.
[0006] Therefore, the specific technical solution adopted by the utility model is as follows:
[0007] A side-mounted OCV valve structure with a built-in one-way structure includes an outer cover. A valve body is fixedly installed at the bottom of the outer cover. An advance chamber oil passage is opened at the upper part of the surface of the valve body. A lag chamber oil passage is opened at the lower part of the surface of the valve body. An oil drain port is opened at the middle part of the surface of the valve body. An oil inlet is opened at the end of the valve body. A one-way valve assembly is fixedly installed at the end of the oil inlet. A spring seat is arranged at the lower part inside the valve body. A return spring is arranged at the end of the spring seat. A connecting column is fixedly connected to the end of the return spring. A valve core is fixedly installed on the outer wall of the connecting column. A front yoke iron assembly is arranged inside the outer cover.
[0008] Preferably, a guide sleeve is fixedly connected to the top of the front yoke iron assembly. A solenoid is fixedly connected to the end of the guide sleeve. An inner plunger is arranged inside the guide sleeve. A magnetic core assembly is arranged outside the inner plunger. By arranging the inner plunger, the connecting column can be pushed, and the valve core can be lowered under the contraction deformation of the return spring, so as to facilitate the adjustment and control of the oil inlet and outlet of the advance chamber oil passage and the lag chamber oil passage, effectively preventing the phenomenon of oil backflow and ensuring the oil inlet pressure.
[0009] Preferably, sealing rings are provided on the inner walls of the connections between the guide sleeve and the front yoke assembly and the valve body. The sealing rings are made of rubber. By providing the sealing rings, the sealing performance of the OCV valve is enhanced, resulting in less oil consumption during the operation of the machine.
[0010] Preferably, there are two groups of valve cores, and filter nets are fixedly installed at the ends of the valve cores. By providing the filter nets, impurity particles in the oil can be filtered out, improving the quality of the oil entering the machine.
[0011] Preferably, the number of the advance chamber oil passages, oil discharge ports, and retard chamber oil passages is four groups each, and they are arranged in a circumferential array on the surface of the valve body. By providing the four groups of advance chamber oil passages, oil discharge ports, and retard chamber oil passages, it is convenient for the oil to enter the interior of the valve body from all directions.
[0012] Preferably, the advance chamber oil passages, oil discharge ports, and retard chamber oil passages have the same diameter size, and the size of the valve core matches the above three. By providing valve cores of the same size, a good occlusion can be formed when closing the advance chamber oil passage and the retard chamber oil passage, ensuring that external oil no longer enters.
[0013] The beneficial effects of the present utility model are as follows:
[0014] 1. For the side-mounted OCV valve structure with a built-in one-way structure, the magnetic core assembly provided can axially move in the front yoke assembly, thereby pushing the connecting column, and the valve core axially slides under the contraction deformation of the return spring, facilitating the adjustment and control of the oil inlet and outlet of the advance chamber oil passage and the retard chamber oil passage. The addition of a one-way valve assembly in the oil inlet pipeline effectively prevents the phenomenon of oil backflow and ensures the oil inlet pressure.
[0015] 2. The side-mounted OCV valve structure with a built-in one-way structure is more compact in structural design than the traditional oil control valve structure, effectively controlling the overall size of the engine, making it easier to match the vehicle model, improving the space utilization rate, reducing the structural weight, increasing the reaction speed and control accuracy during the operation of the machine, and enhancing the response rate of the variable valve timing regulator. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0017] Figure 1 It is a schematic diagram of the internal structure of the present utility model;
[0018] Figure 2 This is a schematic diagram of the external structure of the present utility model;
[0019] Figure 3 This is a schematic diagram of the structure of the front yoke iron assembly of the present utility model;
[0020] Figure 4 This is an enlarged schematic diagram of the valve core of the present utility model.
[0021] In the figure: 1. Outer cover; 2. Valve body; 3. Check valve assembly; 4. Advance chamber oil passage; 5. Oil drain port; 6. Lag chamber oil passage; 7. Front yoke iron assembly; 8. Guide sleeve; 9. Solenoid; 10. Sealing ring; 11. Spring seat; 12. Return spring; 13. Inner plunger; 14. Valve core; 15. Magnetic core assembly; 16. Filter screen; 17. Connecting column. Detailed implementation manners
[0022] To further illustrate each embodiment, the present utility model provides drawings, which are a part of the disclosure of the present utility model. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principle of the embodiments. With reference to these contents, those of ordinary skill in the art should be able to understand other possible implementation manners and the advantages of the present utility model. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.
[0023] According to an embodiment of the present utility model, a side-mounted OCV valve structure with a built-in one-way structure is provided.
[0024] Embodiment 1;
[0025] As Figures 1 - 4 shown, the side-mounted OCV valve structure with a built-in one-way structure according to an embodiment of the present utility model includes an outer cover 1. The bottom of the outer cover 1 is fixedly installed with a valve body 2. An advance chamber oil passage 4 is opened at the upper part of the surface of the valve body 2, a lag chamber oil passage 6 is opened at the lower part of the surface of the valve body 2, an oil drain port 5 is opened at the middle part of the surface of the valve body 2, an oil inlet is opened at the end of the valve body 2, and a check valve assembly 3 is fixedly installed at the end of the oil inlet. A spring seat 11 is arranged at the lower part inside the valve body 2, a return spring 12 is arranged at the end of the spring seat 11, the end of the return spring 12 is fixedly connected with a connecting column 17, a valve core 14 is fixedly installed on the outer wall of the connecting column 17, and a front yoke iron assembly 7 is arranged inside the outer cover 1.
[0026] In this embodiment, a guide sleeve 8 is fixedly connected to the top of the front yoke iron assembly 7. A solenoid 9 is fixedly connected to the end of the guide sleeve 8. An inner plunger 13 is arranged inside the guide sleeve 8, and a magnetic core assembly 15 is arranged outside the inner plunger 13. By arranging the inner plunger 13, the connecting column 17 can be pushed, and the valve core 14 can be lowered under the contraction deformation of the return spring 12, so as to facilitate the regulation and control of the oil inlet and outlet of the advance chamber oil passage 4 and the lag chamber oil passage 6, effectively preventing the phenomenon of engine oil backflow and ensuring the engine oil inlet pressure.
[0027] In this embodiment, sealing rings 10 are arranged on the inner walls of the joints between the guide sleeve 8 and the front yoke iron assembly 7 and the valve body 2. The sealing rings 10 are made of rubber material. By arranging the sealing rings 10, the sealing performance of the OCV valve is improved, so that the engine oil consumption during the operation of the machine is less.
[0028] In this embodiment, the number of valve cores 14 is two groups, and a filter screen 16 is fixedly installed at the end of the valve core 14. By arranging the filter screen 16, the impurity particles in the engine oil can be filtered out, improving the quality of the engine oil entering the machine.
[0029] In this embodiment, the number of the advance chamber oil passages 4, the oil drain ports 5 and the lag chamber oil passages 6 is four groups each, and they are arranged in a circumferential array on the surface of the valve body 2. By arranging the four groups of advance chamber oil passages 4, oil drain ports 5 and lag chamber oil passages 6, it is convenient for the engine oil to enter the interior of the valve body 2 from all directions.
[0030] Embodiment 2;
[0031] On the basis of Embodiment 1, a preferred embodiment of the side-mounted OCV valve structure with a built-in one-way structure provided by the present utility model is as Figures 1 to 4 shown:
[0032] In this embodiment, the diameters of the advance chamber oil passage 4, the oil drain port 5 and the lag chamber oil passage 6 are the same, and the size of the valve core 14 matches the above three. By arranging the valve core 14 with the same size, a good occlusion can be formed when closing the advance chamber oil passage 4 and the lag chamber oil passage 6, ensuring that the external engine oil no longer enters.
[0033] In order to facilitate the understanding of the above technical solution of the present utility model, the working principle or operation mode of the present utility model in the actual process will be described in detail below.
[0034] In actual application, an oil passage circulation is generated from the OCV valve oil inlet to the oil drain port 5. The magnetic core assembly 15 can axially move in the front yoke iron assembly 7, thereby pushing the connecting column 17, and the valve core 14 axially slides under the contraction deformation of the return spring 12, so as to facilitate the regulation and control of the oil inlet and outlet of the advance chamber oil passage 4 and the lag chamber oil passage 6. Adding a one-way valve assembly 3 to the oil inlet pipeline effectively prevents the phenomenon of engine oil backflow and ensures the engine oil inlet pressure.
[0035] In summary, by means of the above technical solution of the present utility model, the magnetic core assembly 15 can axially move in the front yoke iron assembly 7, thereby pushing the connecting column 17, and axially sliding the valve core 14 under the contraction deformation of the return spring 12, so as to facilitate the regulation and control of the oil inlet and outlet of the advance chamber oil passage 4 and the retard chamber oil passage 6. The addition of the one-way valve assembly 3 in the oil inlet pipeline effectively prevents the phenomenon of oil reflux, ensures the oil inlet pressure, is more compact than the traditional oil control valve structure in terms of structural design, effectively controls the overall size of the engine, is easier to match the vehicle model, improves the space utilization rate, reduces the structural weight, improves the reaction speed and control accuracy during the operation of the machine, and improves the response rate of the variable valve timing regulator.
[0036] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A side-mounted OCV valve structure with a one-way structure, comprising an outer cover (1), characterized in that: A valve body (2) is fixedly mounted on the bottom of the outer cover (1); an advance chamber oil circuit (4) is provided at the upper surface of the valve body (2); a lag chamber oil circuit (6) is provided at the lower surface of the valve body (2); an oil discharge port (5) is provided at the middle surface of the valve body (2); an oil inlet is provided at the end of the valve body (2); a check valve assembly (3) is fixedly mounted at the end of the oil inlet; a spring seat (11) is provided at the lower part of the interior of the valve body (2); a return spring (12) is provided at the end of the spring seat (11); a connecting column (17) is fixedly connected to the end of the return spring (12); a valve core (14) is fixedly mounted on the outer wall of the connecting column (17); and a front yoke iron assembly (7) is provided inside the outer cover (1).
2. A side-mounted OCV valve structure with a one-way structure according to claim 1, characterized in that: The top of the front yoke iron assembly (7) is fixedly connected to a guide sleeve (8), the end of the guide sleeve (8) is fixedly connected to a solenoid (9), an inner plunger (13) is arranged inside the guide sleeve (8), and a magnetic core assembly (15) is arranged outside the inner plunger (13).
3. A side-mounted OCV valve structure with a one-way structure according to claim 2, characterized in that: The inner walls of the connection between the guide sleeve (8) and the front yoke iron assembly (7) and the valve body (2) are all provided with sealing rings (10), and the sealing rings (10) are made of rubber material.
4. The side-mounted OCV valve structure with a one-way structure according to claim 1, characterized in that: The valve cores (14) are provided in two groups, and a filter screen (16) is fixedly mounted on the end of the valve core (14).
5. The side-mounted OCV valve structure with a one-way structure according to claim 1, characterized in that: The number of the advance chamber oil circuit (4), the oil discharge port (5) and the retard chamber oil circuit (6) are all four groups, and they are arranged in a circular array on the surface of the valve body (2).
6. The side-mounted OCV valve structure with a one-way structure according to claim 1, characterized in that: The diameters of the advance chamber oil circuit (4), the oil discharge port (5) and the retard chamber oil circuit (6) are the same, and the size of the valve core (14) matches the above three.