Engine oil filter element with good filtering effect

Abstract

The utility model relates to the technical field of oil filter element, and disclose an engine oil filter element with good filtering effect. Including inner shell, four groups of oil inlet are arranged on the inner shell upper end, four groups the oil inlet inside is provided with the oil outlet, the first filter paper is fixedly connected with the oil outlet bottom, the first bypass valve is slidably connected with the first filter paper bottom, the support rod is fixedly connected with the first bypass valve top, the second filter paper is fixedly connected with the support rod top, when the filter element is not replaced for a long time, the first filter paper is seriously blocked, the oil fluid can open the first bypass valve under the first filter paper, the second filter paper can be followed first bypass valve upwardly and move and prop up the oil outlet, and the oil fluid cannot pass through the oil outlet directly, must flow to the oil outlet after second filter paper filtration, complete secondary filtration, solve the problem that dirty oil directly enters the engine after the main stream machine filter bypass valve opens, directly guarantee the long -term maintenance of engine.

Description

Technical Field

[0001] This utility model relates to the field of oil filter technology, specifically to an engine oil filter with good filtration effect. Background Technology

[0002] The engine oil filter is the core barrier of the lubrication system. Its core function is to continuously filter out harmful particles such as metal shavings, carbon deposits, sludge, and dust from the engine oil. Maintaining high oil cleanliness is crucial, as it effectively prevents abnormal wear of moving parts, avoids oil passage blockage, and slows down oil deterioration, thereby ensuring reliable engine operation, extending its service life, maintaining performance, and reducing maintenance costs. A high-efficiency filter is an indispensable guarantee for the sustained healthy operation of the engine.

[0003] A significant drawback of current mainstream oil filters is the tendency for the filter paper to clog. With use, impurities quickly clog the filter paper pores, leading to a surge in flow resistance and a decrease in oil flow, potentially causing insufficient oil pressure or forcing the bypass valve to open prematurely. Once the bypass valve opens, unfiltered dirty oil will directly enter the engine, leaving it unprotected. Modern engines are increasingly sophisticated and generally require longer oil change intervals, placing higher demands on the consistency of oil cleanliness and the lifespan of the filter element. Solving the clogging problem ensures continuous and efficient filtration, directly guaranteeing the reliability and design life of high-value engines, and is key to achieving truly long-term maintenance and reducing user maintenance costs and resource consumption. Therefore, designing a high-performance engine oil filter is of groundbreaking significance. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an engine oil filter element with good filtration effect, which has the advantages of secondary filtration after the filter paper becomes clogged, avoiding insufficient oil pressure, and solving the above-mentioned technical problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] As a preferred technical solution of this utility model, an engine oil filter element with good filtration effect includes an inner shell. The upper end of the inner shell is provided with four sets of oil inlets, and the inner side of the four sets of oil inlets is provided with an oil outlet. A first filter paper is fixedly connected to the bottom of the oil outlet. A first bypass valve is slidably connected to the bottom of the first filter paper. A support rod is fixedly connected to the top of the first bypass valve. A second filter paper is fixedly connected to the top of the support rod. The surfaces of the first filter paper and the second filter paper are provided with sieve holes. Four sets of second bypass valves are slidably connected to the bottom of the second filter paper.

[0007] As a preferred embodiment of this invention, the inner shell side surface is fixedly connected to the outer shell by a permanent magnet.

[0008] As a preferred embodiment of this utility model, a check valve is provided below the oil inlet, and the check valve is an elastic rubber ring.

[0009] As a preferred embodiment of this utility model, the length of the support rod is equal to the distance between the second filter paper and the oil outlet, and the diameter of the second filter paper is larger than the diameter of the oil outlet.

[0010] As a preferred embodiment of this invention, the diameter of the first filter paper is larger than the diameter of the second filter paper, and there is a sufficient gap between the two.

[0011] As a preferred embodiment of this utility model, a spring is fixedly connected to the top surface of the second bypass valve, and a baffle is fixedly connected to the other end of the spring. The baffle is fixedly connected to the inner wall of the second filter paper.

[0012] Compared with the prior art, this utility model provides an engine oil filter element with good filtration effect, which has the following beneficial effects:

[0013] 1. This utility model provides a second filter paper inside the first filter paper. When the first filter paper is blocked and the bypass valve is opened by pressure, the second filter paper starts to operate and can still play a filtering role. This solves the problem that dirty oil directly enters the engine after the main oil filter bypass valve is opened, and directly ensures the long-term maintenance of the engine.

[0014] 2. This utility model provides a permanent magnet layer on the outside of the oil filter housing to adsorb some metal shavings to the housing, thereby alleviating the problem of impurities clogging the filter paper pores and improving the filtration effect of the oil filter element. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of an engine oil filter element with good filtration effect according to this utility model;

[0016] Figure 2 This is a schematic diagram of the overall structure of an engine oil filter element with good filtration effect according to this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the first filter paper in an engine oil filter element with good filtration effect according to this utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of the second filter paper in an engine oil filter element with good filtration effect according to this utility model.

[0019] The components are: 1. Inner shell; 2. Oil inlet; 3. Oil outlet; 4. First filter paper; 5. First bypass valve; 6. Support rod; 7. Second filter paper; 8. Screen hole; 9. Second bypass valve; 10. Permanent magnet; 11. Outer shell; 12. Check valve; 13. Spring; 14. Baffle. Detailed Implementation

[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0021] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship 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. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Please see Figure 1-4An engine oil filter element with good filtration effect includes an inner shell 1. Four sets of oil inlets 2 are provided at the upper end of the inner shell 1. Oil outlets 3 are opened inside the four sets of oil inlets 2. A check valve 12, which is an elastic rubber ring, is provided below the oil inlets 2. The oil pump delivers pressurized oil fluid through the oil inlets 2, opening the check valve 12 and allowing it to enter the filter element. The oil inlets 2 are fixedly connected to the oil outlets 3. A first filter paper 4 is fixedly connected to the bottom of the oil outlet 3. The surface of the first filter paper 4 has sieve holes 8, which effectively block impurities such as metal shavings, carbon deposits, soot, sludge, and dust, allowing pure oil to pass through smoothly. After passing through the first filter paper 4, the pure oil flows directly to the oil outlet 3, providing lubrication and rust prevention for the engine. A first bypass valve 5 is slidably connected to the bottom of the first filter paper 4. When the filter element is not replaced for a long time, too many impurities accumulate on the first filter paper 4, severely clogging the sieve holes 8. The oil entering the filter element will gradually increase in pressure due to insufficient backflow, pushing open the first bypass valve 5 below the first filter paper 4. The top of the first bypass valve 5 is fixedly connected to a support rod 6, and the top of the support rod 6 is fixedly connected to a second filter paper 7. The length of the support rod 6 is equal to the distance between the second filter paper 7 and the oil outlet 3, and the diameter of the second filter paper 7 is larger than the diameter of the oil outlet 3. Therefore, when the first bypass valve 5 is pushed open, it will drive the second filter paper 7 to block the oil outlet 3, and the oil fluid cannot pass directly through the oil outlet 3. The sieve holes 8 on the surface of the second filter paper 7 block impurities such as metal shavings, carbon deposits, soot, sludge, and dust. Finally, pure oil is filtered through the second filter paper 7 and flows out from the oil outlet 3.

[0024] Specifically, the inner shell 1 has a shell 11 fixedly connected to the side surface of the inner shell 1 by a permanent magnet 10. When the oil fluid enters the filter element, some metal shavings will be attracted by the permanent magnet 10 and stick tightly to the inner wall of the inner shell 1, which alleviates the problem of impurities clogging the filter paper pores and greatly improves the filtration effect of the oil filter element.

[0025] Specifically, a spring 13 is fixedly connected to the top surface of the second bypass valve 9, and a baffle 14 is fixedly connected to the other end of the spring 13. The baffle 14 is fixedly connected to the inner wall of the second filter paper 7. When the oil filter element has not been replaced for a long time, causing both the first filter paper 4 and the second filter paper 7 to be severely clogged, the oil pressure will further increase due to insufficient backflow, which will open the second bypass valve 9 below the second filter paper 7. The oil fluid flows from the second bypass valve 9 to the oil outlet 3, avoiding engine damage caused by insufficient oil pressure.

[0026] During use, the oil pump delivers pressurized oil fluid through the inlet 2, which opens the check valve 12 and enters the filter element. Some metal shavings are attracted by the permanent magnet 10 and adhere tightly to the inner wall of the inner shell 1. The remaining fluid is filtered by the first filter paper 4 and flows to the outlet 3. When the sieve holes 8 on the first filter paper 4 are severely blocked, the oil fluid will push open the first bypass valve 5 below the first filter paper 4. The second filter paper 7 will move upward with the first bypass valve 5 and block the outlet 3. The oil fluid can only flow to the outlet 3 after being filtered by the second filter paper 7. When the sieve holes 8 on the second filter paper 7 are severely blocked, the oil fluid will push open the second bypass valve 9 below the second filter paper 7 and flow directly to the outlet 3.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An engine oil filter element with good filtration effect, comprising an inner shell (1), characterized in that: The inner shell (1) is provided with four sets of oil inlets (2) at the upper end. The four sets of oil inlets (2) are provided with oil outlets (3) on the inner side. The bottom of the oil outlets (3) is fixedly connected to a first filter paper (4). The bottom of the first filter paper (4) is slidably connected to a first bypass valve (5). The top of the first bypass valve (5) is fixedly connected to a support rod (6). The top of the support rod (6) is fixedly connected to a second filter paper (7). The surfaces of the first filter paper (4) and the second filter paper (7) are provided with sieve holes (8). The bottom of the second filter paper (7) is slidably connected to four sets of second bypass valves (9).

2. The engine oil filter element with good filtration effect according to claim 1, characterized in that: The inner shell (1) is fixedly connected to the outer shell (11) by a permanent magnet (10) on its side surface.

3. The engine oil filter element with good filtration effect according to claim 1, characterized in that: A check valve (12) is provided below the oil inlet (2), and the check valve (12) is an elastic rubber ring.

4. The engine oil filter element with good filtration effect according to claim 1, characterized in that: The length of the support rod (6) is equal to the distance between the second filter paper (7) and the oil outlet (3), and the diameter of the second filter paper (7) is larger than the diameter of the oil outlet (3).

5. An engine oil filter element with good filtration effect according to claim 1, characterized in that: The diameter of the first filter paper (4) is larger than the diameter of the second filter paper (7), and there is a sufficient gap between them.

6. The engine oil filter element with good filtration effect according to claim 1, characterized in that: A spring (13) is fixedly connected to the top surface of the second bypass valve (9), and a baffle (14) is fixedly connected to the other end of the spring (13). The baffle (14) is fixedly connected to the inner wall of the second filter paper (7).

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