Oil filter of diesel internal combustion engine

Abstract

The utility model relates to the technical field of engine oil filtration, in particular to an engine oil filter of a diesel internal combustion engine, which comprises a shell, a bottom cover is mounted at the bottom end of the shell in a threaded manner, a stirring rod is rotatably mounted on the bottom cover through a labyrinth sealing method, and magnetic bars are mounted in the stirring rod in a staggered manner. A spiral blade is rotationally mounted on the shell, and a rubidium magnetic rod is mounted in the stirring rod; during installation, the openings in the two ends of the shell are connected into a loop where engine oil flows, so that the engine oil penetrates through the interior of the shell when flowing, the spiral blades are pushed to rotate when the engine oil flows, the spiral blades drive the stirring rods to rotate through the clamping grooves and the clamping blocks, the rubidium magnetic bars transmit magnetic force to the magnetic conductive bars which are arranged in a staggered mode, and the magnetic conductive bars are driven by the stirring rods to rotate; and the engine oil entering the shell can be continuously stirred, metal impurities in the engine oil are dynamically adsorbed and captured, and the effect that the metal impurities in the engine oil can be more sufficiently adsorbed and filtered is achieved.

Description

Technical Field

[0001] This utility model relates to the field of oil filtration technology, and in particular to an oil filter for a diesel internal combustion engine. Background Technology

[0002] During the operation of a diesel internal combustion engine, ensuring the cleanliness of the engine oil is crucial for its normal operation and service life. In practical applications, an oil filter for a diesel internal combustion engine typically requires the following technologies:

[0003] 1. Filtration technology: Using different types of filter elements, such as paper filter elements, metal mesh filter elements, ceramic filter elements, etc., to intercept impurities in engine oil;

[0004] 2. Bypass valve technology: When a bypass valve is installed, if the pressure difference between the inlet and outlet is too large due to impurities clogging the filter element, the bypass valve will automatically open, allowing some engine oil to bypass the filter element and directly enter the engine, so as to ensure that the engine can still get enough engine oil lubrication even when the filter element is clogged.

[0005] An existing Chinese patent, CN214303997U, discloses an oil filter for a diesel internal combustion engine. The filter includes a housing, a central tube, a filter element, and a bypass valve. An oil passage is formed between the filter element and the inner wall of the housing. The housing includes an upper cover and a lower cover. A support spring is provided between the lower cover and the central tube, and a bypass valve is located at one end of the central tube near the support spring. The upper cover has an oil inlet and an oil outlet. The oil inlet communicates with the oil passage and a check valve is provided at the inlet. The oil outlet communicates with the other end of the central tube. A magnet is provided between the lower cover and the support spring, and a closed annular filter screen is provided between the oil passage and the bypass valve. This invention, even when the filter element is clogged, can still filter impurities in the oil through the magnet and the annular filter screen, preventing the direct discharge of impurities and avoiding damage to the components of the internal combustion engine system, thus effectively extending the service life of the internal combustion engine.

[0006] However, during the implementation of the above technical solution, at least the following technical problems were found: The above filter uses a magnet to adsorb metal impurities. However, due to the resistance and viscosity of the engine oil, the metal cannot quickly approach the magnet. Impurities that have not yet been adsorbed by the magnet will be washed away by the water flow, making it difficult to fully filter the metal impurities in the engine oil. Utility Model Content

[0007] To address the shortcomings of existing technologies, this utility model provides an oil filter for diesel internal combustion engines, solving the technical problem that the aforementioned filters use magnets to attract metallic impurities. However, due to the resistance and viscosity of engine oil, metal cannot quickly approach the magnet, and impurities not yet attracted by the magnet will be washed away by water flow, resulting in insufficient filtration of metallic impurities in the engine oil.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] An oil filter for a diesel internal combustion engine includes a housing, a bottom cover threaded onto the bottom end of the housing, a stirring rod rotatably mounted on the bottom cover via a labyrinth seal, magnetic rods being alternately mounted inside the stirring rod, a spiral blade rotatably mounted on the housing, and a rubidium magnetic rod installed in the stirring rod.

[0010] Preferably, the spiral blade has a slot.

[0011] Preferably, the top of the stirring rod is provided with a locking block, which is slidably connected to the locking groove.

[0012] Preferably, a large cleaning cover is threaded onto the bottom end of the bottom cover.

[0013] Preferred: A small cleaning cover is threaded onto the large cleaning cover.

[0014] Preferably, a rubidium magnetic ring is installed between the large cleaning cover and the bottom cover.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. During installation, connect the openings at both ends of the housing to the oil flow circuit, allowing the oil to flow through the inside of the housing. The oil flow will drive the spiral blade to rotate, which will drive the stirring rod to rotate through the slots and blocks. The neodymium magnetic rod will transfer magnetic force to the staggered magnetic rods, which will be driven to rotate by the stirring rod. This will continuously stir the oil entering the housing, dynamically adsorbing and capturing metal impurities in the oil, achieving a more thorough adsorption and filtration effect for metal impurities in the oil.

[0017] 2. For routine maintenance, simply unscrew the small cleaning cap to remove the rubidium magnetic rod. Once removed, the magnetic rod loses its magnetism, and the metal impurities adsorbed on the stirring rod will sink to the upper surface of the bottom cover under the influence of gravity and the magnetic force of the rubidium magnetic ring. They will then be firmly adsorbed onto the upper surface of the bottom cover by the rubidium magnetic ring, thus cleaning the metal impurities adhering to the stirring rod and preventing excessive metal impurities on the stirring rod. Afterward, wipe the rubidium magnetic rod back into the stirring rod and tighten the small cleaning cap for reuse. When deep cleaning and maintenance are required, unscrew the bottom cover and then the large cleaning cap to remove the rubidium magnetic rod and rubidium magnetic ring. The metal impurities on the bottom cover will no longer be magnetically adsorbed onto the bottom cover, allowing for unified cleaning of the adsorbed metal impurities. Attached Figure Description

[0018] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0019] Figure 1 This is a front structural view of the present invention;

[0020] Figure 2 This is a bottom structural diagram of the present invention;

[0021] Figure 3 This is a cross-sectional structural diagram of the outer shell of this utility model;

[0022] Figure 4 This is a cross-sectional view of the stirring rod of this utility model;

[0023] Figure 5 This is a cross-sectional view of the bottom cover of this utility model;

[0024] Figure 6 This is a structural diagram of the card slot of this utility model.

[0025] Illustration: 1. Outer shell; 2. Bottom cover; 3. Stirring rod; 4. Magnetic rod; 5. Spiral blade; 6. Rubidium magnetic rod; 7. Slot; 8. Locking block; 9. Large cleaning cover; 11. Small cleaning cover; 12. Rubidium magnetic ring. Detailed Implementation

[0026] This application provides an oil filter for a diesel internal combustion engine, effectively solving the technical problem of the aforementioned filters that rely on magnets to attract metallic impurities. However, due to the resistance and viscosity of engine oil, metal cannot quickly approach the magnet, and impurities not yet attracted are washed away by water flow, resulting in insufficient filtration of metallic impurities in the engine oil. During installation, the openings at both ends of the housing are connected to the oil flow circuit, allowing the oil to flow through the interior of the housing. This oil flow drives the spiral blades to rotate, which in turn rotates the stirring rod via slots and blocks. The neodymium magnets transmit magnetic force to the staggered magnetic rods, which are then rotated by the stirring rods, continuously agitating the oil entering the housing and dynamically attracting and capturing metallic impurities. This achieves a more thorough adsorption and filtration of metallic impurities in the engine oil. For routine maintenance, simply unscrew the small cleaning cap to remove the rubidium magnetic rod. Once removed, the magnetic rod loses its magnetism, and the metallic impurities adsorbed on the stirring rod will sink to the upper surface of the bottom cover under the influence of gravity and the magnetic force of the rubidium magnetic ring. They will then be firmly adsorbed onto the upper surface of the bottom cover by the rubidium magnetic ring, thus cleaning the metallic impurities attached to the stirring rod and preventing excessive metallic impurities on the stirring rod. Afterward, the rubidium magnetic rod can be wiped back into the stirring rod, and the small cleaning cap can be tightened for reuse. When deep cleaning maintenance is required, unscrew the bottom cover, and then unscrew the large cleaning cap to remove the rubidium magnetic rod and rubidium magnetic ring. The metallic impurities on the bottom cover will no longer be magnetically adsorbed onto the bottom cover, allowing for a unified cleaning of the adsorbed metallic impurities. Example

[0027] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the technical solution in this application embodiment effectively solves the problem of the above-mentioned filter, which uses a magnet to adsorb metal impurities. However, due to the resistance and viscosity of engine oil, metal cannot quickly approach the magnet, and impurities that have not yet been adsorbed by the magnet will be washed away by the water flow. This results in the technical problem that metal impurities in the engine oil are difficult to be fully filtered. The overall idea is as follows:

[0028] To address the problems existing in the prior art, this utility model provides an oil filter for a diesel internal combustion engine, including a housing 1, a bottom cover 2 threadedly installed at the bottom end of the housing 1, and a stirring rod 3 rotatably installed on the bottom cover 2 by a labyrinth seal method.

[0029] The stirring rod 3 has magnetic rods 4 installed alternately inside, a spiral blade 5 is rotatably installed on the outer shell 1, a rubidium magnetic rod 6 is installed in the stirring rod 3, a slot 7 is opened on the spiral blade 5, and a locking block 8 is provided at the top of the stirring rod 3.

[0030] The card block 8 is slidably connected to the card slot 7. A large cleaning cover 9 is threadedly installed at the bottom end of the bottom cover 2. A small cleaning cover 11 is threadedly installed on the large cleaning cover 9. A rubidium magnetic ring 12 is installed between the large cleaning cover 9 and the bottom cover 2.

[0031] Outer shell 1: As the main structure of the oil filter, it has openings at both ends for connecting to the oil flow circuit, allowing the oil to flow in it. It also provides installation space for other internal components, such as the stirring rod 3 and the spiral blade 5. It is the carrier for the entire filter to achieve its filtration function.

[0032] Bottom cover 2: It is threaded onto the bottom of the outer shell 1, which serves to seal the bottom of the outer shell 1 and provide rotational support for the stirring rod 3. The labyrinth seal method ensures the sealing of the stirring rod 3 when it rotates, preventing oil leakage. In addition, the upper surface of the bottom cover 2 is used to catch metal impurities that fall from the stirring rod 3 and are attracted by the rubidium magnetic ring 12 during maintenance.

[0033] Stirring rod 3: It rotates on the bottom cover 2 through a labyrinth seal method. Inside, magnetic rods 4 are installed alternately and rubidium magnetic rods 6 are installed. It rotates under the drive of the spiral blade 5, which in turn drives the magnetic rods 4 to rotate, stirring the oil that enters the outer shell 1. This allows the magnetic rods 4 to dynamically adsorb and capture metal impurities in the oil. The locking block 8 at the top of the stirring rod 3 is slidably connected to the locking groove 7 on the spiral blade 5 to realize the power transmission with the spiral blade 5.

[0034] Magnetic rod 4: It is installed alternately inside the stirring rod 3 and is magnetized under the magnetic force of the rubidium magnetic rod 6. As the stirring rod 3 rotates, it stirs the oil and uses its own magnetism to adsorb metal impurities in the oil, thereby enhancing the filter's filtration effect on metal impurities.

[0035] Spiral blade 5: Rotatably mounted on the outer casing 1, its rotational power comes from the propulsion of the oil flow. The spiral blade 5 has a slot 7, which slides with the block 8 at the top of the stirring rod 3 to transmit its own rotational motion to the stirring rod 3, thereby driving the stirring rod 3 and the internal magnetic rod 4 to rotate, so as to achieve stirring of the oil and adsorption and capture of metal impurities.

[0036] Rubidium magnetic rod 6: Installed in the stirring rod 3, it provides a magnetic source for the magnetic rod 4, enabling the magnetic rod 4 to adsorb metal impurities in the oil. During routine maintenance and deep cleaning, the magnetic state of the magnetic rod 4 can be changed by removing the rubidium magnetic rod 6, making it easier to clean the metal impurities adsorbed on the stirring rod 3.

[0037] Slot 7: It is formed on the spiral blade 5 and is slidably connected to the locking block 8 at the top of the stirring rod 3. It is a key structure for transmitting power from the spiral blade 5 to the stirring rod 3, ensuring that the rotation of the spiral blade 5 under the drive of the oil can drive the stirring rod 3 to rotate synchronously.

[0038] Card block 8: Set at the top of the stirring rod 3, it slides in conjunction with the slot 7 on the spiral blade 5 to realize the power connection between the stirring rod 3 and the spiral blade 5, so that the stirring rod 3 can rotate under the drive of the spiral blade 5 to complete the stirring and impurity adsorption of the oil.

[0039] Large cleaning cover 9: It is threaded onto the bottom end of the bottom cover 2. When the filter needs to be deeply cleaned and maintained, the large cleaning cover 9 can be unscrewed and separated from the bottom cover 2 to facilitate the removal of the internal rubidium magnetic rod 6 and rubidium magnetic ring 12, and to uniformly clean the metal impurities adsorbed on the bottom cover 2.

[0040] Small cleaning cover 11: It is threaded onto the large cleaning cover 9. During routine maintenance, the small cleaning cover 11 can be unscrewed to pull out or insert the rubidium magnetic rod 6, so as to clean the metal impurities attached to the stirring rod 3 and restore the filter to normal working condition.

[0041] Rubidium magnetic ring 12: Installed between the large cleaning cover 9 and the bottom cover 2. After the rubidium magnetic rod 6 is removed during routine maintenance, it uses its own magnetic force to firmly attract the metal impurities that fall from the stirring rod 3 to the upper surface of the bottom cover 2, making cleaning convenient and preventing metal impurities from flowing freely inside the filter.

[0042] Working principle:

[0043] The first step is to connect the openings at both ends of the outer casing 1 into the oil flow circuit during installation. This allows the oil to flow through the interior of the outer casing 1, driving the spiral blade 5 to rotate. The spiral blade 5 then drives the stirring rod 3 to rotate via the slot 7 and the locking block 8. The neodymium magnetic rod 6 transmits magnetic force to the staggered magnetic rods 4, which are then rotated by the stirring rod 3. This continuously stirs the oil entering the outer casing 1, dynamically adsorbing and capturing metallic impurities in the oil, thus achieving a more thorough adsorption and filtration effect.

[0044] The second step is to unscrew the small cleaning cover 11 during routine maintenance to remove the rubidium magnetic rod 6. After the rubidium magnetic rod 6 is removed, the magnetic rod 4 loses its magnetism, and the metal impurities adsorbed on the stirring rod 3 will sink to the upper surface of the bottom cover 2 under the action of gravity and the magnetic force of the rubidium magnetic ring 12. They will be tightly adsorbed onto the upper surface of the bottom cover 2 by the rubidium magnetic ring 12, thus cleaning the metal impurities attached to the stirring rod 3 and preventing excessive metal impurities on the stirring rod 3. Then, the rubidium magnetic rod 6 can be wiped back into the stirring rod 3 and the small cleaning cover 11 can be tightened for reuse. When deep cleaning and maintenance are required, unscrew the bottom cover 2 and then unscrew the large cleaning cover 9 to remove the rubidium magnetic rod 6 and the rubidium magnetic ring 12. The metal impurities on the bottom cover 2 will no longer be magnetically adsorbed onto the bottom cover 2, thus cleaning the adsorbed metal impurities uniformly.

[0045] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. An oil filter for a diesel internal combustion engine, comprising a housing (1), characterized in that, The bottom end of the outer shell (1) is threaded with a bottom cover (2), and a stirring rod (3) is rotatably installed on the bottom cover (2) by a labyrinth seal method. Magnetic rods (4) are installed alternately inside the stirring rod (3). Spiral blades (5) are rotatably installed on the outer shell (1), and rubidium magnetic rods (6) are installed in the stirring rod (3).

2. The oil filter for a diesel internal combustion engine as described in claim 1, characterized in that, The spiral blade (5) is provided with a slot (7).

3. The oil filter for a diesel internal combustion engine as described in claim 1, characterized in that, The top of the stirring rod (3) is provided with a locking block (8), which is slidably connected to the slot (7).

4. The oil filter for a diesel internal combustion engine as described in claim 1, characterized in that, The bottom end of the bottom cover (2) is threaded with a large cleaning cover (9).

5. The oil filter for a diesel internal combustion engine as described in claim 4, characterized in that, A small cleaning cover (11) is threaded onto the large cleaning cover (9).

6. The oil filter for a diesel internal combustion engine as described in claim 4, characterized in that, A rubidium magnetic ring (12) is installed between the large cleaning cover (9) and the bottom cover (2).

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