An oil filter for a diesel engine

Abstract

The utility model discloses a diesel engine's oil filter relates to oil filter technical field, including the shell, the shell inside is equipped with the filter component, is used for carrying out filter cleaning to diesel oil, is convenient for dismantling simultaneously, the filter component includes detachable half filter drum, detachable half filter drum opening one end is located in the shell inside one side, and the one end of detachable half filter drum is close to the shell inside is connected in the shell inside one side through screw thread. The utility model discloses through the oil of waiting for filtering into the shell inside through the filter core and the adsorption oil in various solid impurities and part of colloidal substance, realizes high -efficient filtration, and the whole filter component can be rotated out simultaneously to the rotating handle, carries out replacement or cleaning, thereby realized the quick, tool formula dismounting of filter core, and the maintenance time and operation difficulty have been reduced greatly, and the use effect has been improved.

Description

Technical Field

[0001] This utility model relates to the field of oil filter technology, specifically an oil filter for a diesel engine. Background Technology

[0002] An oil filter is a device used to filter impurities and contaminants from the engine oil in a diesel engine. Its main function is to keep the diesel fuel clean and extend its service life. By removing gum, metal particles, and other impurities from the diesel fuel, it reduces friction between internal engine parts, reduces wear, and thus improves engine performance and lifespan.

[0003] For example, an oil filter according to Chinese patent application CN202220459516.2 includes a lower filter seat with an upward opening and an upper cover that fits over the lower filter seat. A connecting seat is also provided inside the lower filter seat, dividing the cavity formed by the upper cover and the lower filter seat into upper and lower parts. The lower part of the connecting seat is the lower oil filter chamber, and the upper part is the upper oil filter chamber. A filter element is installed in the lower oil filter chamber, and a rotor filter is installed in the upper oil filter chamber. Oil containing impurities enters the lower oil filter chamber from the bottom of the lower filter seat. Part of the oil is filtered by the filter element and returns to the lubrication system, while the other part passes through the connecting seat and enters the upper rotor filter, where it is filtered before returning to the lubrication system. Each time the oil containing impurities flows through the oil filter, a portion of the oil undergoes more efficient filtration by the rotor filter, resulting in purer oil compared to the filter element, thereby extending the service life of the oil filter.

[0004] However, in actual use, the oil filter in the above-mentioned device adopts an integral cylindrical structure, which has problems such as large size, heavy installation, difficult maintenance, inconvenient cleaning of the filter chamber, and inability to monitor the quality of the filtered oil in real time. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an oil filter for diesel engines. The oil to be filtered enters the housing and is filtered by the filter element, which traps and adsorbs various solid impurities and some colloidal substances in the oil, achieving efficient filtration. Simultaneously, rotating the handle allows the entire filter assembly to be unscrewed for replacement or cleaning. This enables quick, tool-based disassembly and assembly of the filter element, significantly reducing maintenance time and operational difficulty, improving performance, and effectively solving the problems in the prior art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: an oil filter for a diesel engine, including a housing; The housing contains a filter assembly for filtering diesel fuel and is easy to disassemble. The filtration assembly includes a detachable semi-filter cartridge. One end of the detachable semi-filter cartridge has its opening located inside the housing. The end of the detachable semi-filter cartridge closest to the inside of the housing is threaded to the inside of the housing, which facilitates sealing and enhances structural stability. The surface of the detachable semi-filter cartridge has several evenly distributed filter holes, and the surface of the detachable semi-filter cartridge is equipped with a filter element, which facilitates user disassembly, cleaning, or replacement of the filter element, improving maintenance efficiency. At the same time, it ensures that the engine oil is fully filtered when it passes through, thus improving the filtration effect.

[0007] Preferably, a handle is fixedly provided on the other side wall of the detachable half-filter cartridge, and the end of the handle near the detachable half-filter cartridge passes through the center of one side of the filter element, which makes it convenient for users to rotate and disassemble the detachable half-filter cartridge without special tools, greatly improving the disassembly efficiency. At the same time, it plays a guiding and supporting role for the filter element, preventing the filter element from shifting or being damaged during installation or disassembly.

[0008] Preferably, O-rings are fixedly provided on both inner side walls of the housing. The O-ring near the side of the removable half-filter cartridge is sleeved on the outer wall of one side of the removable half-filter cartridge and located on the other side of the filter element. This effectively prevents oil leakage, improves sealing reliability, and avoids mixing of unfiltered oil with filtered oil, ensuring filtration effect.

[0009] Preferably, the outer casing is hinged to the post-filter chamber door and the pre-filter chamber door on both sides, which facilitates the opening of the post-filter chamber door and the pre-filter chamber door for partial maintenance without the need for overall disassembly. The two O-rings are respectively located at the joints between the post-filter chamber door and the pre-filter chamber door and the outer casing to further prevent oil leakage and adapt to high-pressure working environments.

[0010] Preferably, an oil outlet seat is fixedly provided on one side of the filter chamber door. The oil outlet seat is connected to the inside of the detachable semi-filter cartridge to ensure that the filtered oil flows out smoothly and reduce resistance. The end of the handle away from the detachable semi-filter cartridge abuts against the center of the inner wall of the filter chamber door to provide support and prevent the detachable semi-filter cartridge from shaking during operation.

[0011] Preferably, a transparent observation window is embedded in the center of the pre-filter chamber, allowing the user to see the abnormally dark color of the engine oil or obvious blockage on the surface of the filter element through the transparent observation window, so as to determine that the filter assembly needs to be replaced or cleaned in time, thus achieving preventive maintenance. An oil inlet pipe is fixedly provided on one side of the top of the housing, and the oil inlet pipe is connected to the inside of the housing, so as to facilitate the natural oil intake by gravity and improve the oil flow efficiency.

[0012] Preferably, the outer shell is fixed to the top of two horizontally distributed mounting bases by bolts, and two load-bearing blocks distributed front and rear are fixed at the top of the inner side of the mounting bases, which can enhance the overall structural load-bearing capacity and adapt to the vibration environment of the diesel engine.

[0013] Compared with the prior art, this utility model provides an oil filter for a diesel engine, which has the following advantages: This invention features a filter housing where the oil to be filtered enters through the inlet pipe, filling the pre-filter chamber. Driven by the oil pump pressure or system pressure, the dirty oil in the pre-filter chamber permeates through the filter element, trapping and adsorbing various solid impurities and some colloidal substances. The clean oil then flows through the filter holes from the inside of the detachable semi-filter cartridge to the outlet, where it is returned to the diesel engine's lubrication system, providing clean lubrication for all engine components. Simultaneously, opening the pre-filter chamber door and rotating the handle allows the entire filter assembly to be unscrewed for replacement or cleaning. Maintenance is extremely convenient, requiring no disassembly of the entire housing. This achieves quick, tool-based disassembly and assembly of the filter element, significantly reducing maintenance time and operational difficulty, while simultaneously achieving efficient filtration and convenient maintenance, thus improving overall performance. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a rear view of the overall structure of this utility model; Figure 3 This is a cross-sectional view of the overall structure of this utility model.

[0015] In the diagram: 1. Outer shell, 2. Pre-filter chamber door, 3. Post-filter chamber door, 4. Oil outlet seat, 5. Mounting seat, 6. Weight block, 7. Oil inlet pipe, 8. Transparent observation window, 9. Filter assembly; 91 Detachable half filter cartridge, 92 Filter holes, 93 Filter element, 94 Handle, 95 O-ring seal. Detailed Implementation

[0016] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0017] like Figure 1-3 As shown, this utility model provides an oil filter for a diesel engine, including a housing 1. The inner wall of the housing 1 is coated with an oil film to reduce oil flow resistance, improve filtration efficiency, enhance corrosion resistance, and extend component life. The surface of the housing 1 is sprayed with a two-component epoxy primer and a RAL7032 polyurethane topcoat, which has strong adhesion, excellent corrosion resistance, excellent resistance to engine oil, fuel and solvents, high hardness and wear resistance, etc., to ensure the overall service life of the housing 1, avoid the need for repainting due to premature paint film failure or damage to the housing, and reduce the maintenance cost throughout the entire life cycle.

[0018] The outer casing 1 is hinged to the post-filter chamber door 3 and the pre-filter chamber door 2 on both sides, which facilitates the opening of the post-filter chamber door 3 and the pre-filter chamber door 2 for partial maintenance without the need for overall disassembly. An oil outlet seat 4 is fixedly provided on one side of the post-filter chamber door 3, and an oil inlet pipe 7 is fixedly provided on one side of the top of the outer casing 1. The oil inlet pipe 7 is interconnected with the interior of the outer casing 1, which facilitates natural oil intake by gravity and improves oil flow efficiency. The outer casing 1 is fixed to the top of two horizontally distributed mounting bases 5 by bolts. Two front-to-back load-bearing blocks 6 are fixedly provided at the top of the interior of the mounting base 5 to enhance the overall structural load-bearing capacity and adapt to the vibration environment of the diesel engine.

[0019] like Figure 1-3 As shown, the housing 1 is equipped with a filter assembly 9 for filtering diesel fuel and is easy to disassemble. The filter assembly 9 includes a detachable semi-filter cartridge 91. One end of the detachable semi-filter cartridge 91 is located inside the housing 1. The end of the detachable semi-filter cartridge 91 near the inside of the housing 1 is connected to the inside of the housing 1 by a thread, which helps to ensure sealing and enhances structural stability. The surface of the detachable semi-filter cartridge 91 has several evenly distributed filter holes 92. The surface of the detachable semi-filter cartridge 91 is provided with a filter element 93, which makes it easy for users to disassemble, clean or replace the filter element 93, improving maintenance efficiency and ensuring that the engine oil is fully filtered when it passes through, thus improving the filtration effect.

[0020] A handle 94 is fixedly provided on the other side wall of the detachable semi-filter cartridge 91, and the end of the handle 94 near the detachable semi-filter cartridge 91 passes through the center of one side of the filter element 93, which allows the user to rotate and disassemble the detachable semi-filter cartridge 91 without special tools, greatly improving the disassembly efficiency. At the same time, it plays a guiding and supporting role for the filter element 93, preventing the filter element 93 from shifting or being damaged during installation or disassembly. O-rings 95 are fixedly provided on both sides of the inner side wall of the outer shell 1. The O-ring 95 near the side of the detachable semi-filter cartridge 91 is sleeved on the outer wall of one side of the detachable semi-filter cartridge 91 and located on the other side of the filter element 93, which can effectively prevent oil leakage, improve sealing reliability, and prevent unfiltered oil from mixing with filtered oil, ensuring the filtration effect.

[0021] Two O-rings 95 are respectively located at the junction of the post-filter chamber 3 and the pre-filter chamber 2 with the outer shell 1 to further prevent oil leakage and adapt to high-pressure working environments. The oil outlet 4 is connected to the interior of the detachable semi-filter cartridge 91 to ensure smooth flow of filtered oil and reduce resistance. The end of the handle 94 away from the detachable semi-filter cartridge 91 abuts against the center of the inner wall of the pre-filter chamber 2 to provide support and prevent the detachable semi-filter cartridge 91 from shaking during operation. A transparent observation window 8 is embedded in the center of the interior of the pre-filter chamber 2, allowing the user to see the abnormally dark color of the oil or obvious blockage on the surface of the filter element 93 in a timely manner, so as to determine that the filter assembly 9 needs to be replaced or cleaned in time, thus achieving preventive maintenance.

[0022] By setting up the filter assembly 9, the oil to be filtered enters the housing from the oil inlet pipe 7 at the top of the housing 1. Since the oil inlet pipe is located at the top, the oil will fall naturally under the action of gravity and fill the pre-filter chamber, that is, the space between the pre-filter chamber door 2 and the filter assembly (post-filter chamber, i.e., the interior of the removable half-filter cartridge 91 and the oil outlet pipe). The dirty oil in the pre-filter chamber, driven by the oil pump pressure or system pressure, permeates from the outside through the filter assembly 9. The oil first passes through the filter holes 92 on the surface of the removable half-filter cartridge 91, and then must pass through the filter element 93 wrapped around the outside of the filter cartridge. The filter element 93 will trap and adsorb various solid impurities and some colloidal substances in the oil. The filtered clean oil then enters the internal cavity of the removable semi-filter cartridge 91. The clean oil accumulated inside the removable semi-filter cartridge 91 flows to the oil outlet 4 connected to the rear filter chamber door 3. Finally, the clean oil flows out from the oil outlet 4 and is transported back to the diesel engine's lubrication system to provide clean lubrication for various engine components. At the same time, by opening the front filter chamber door 2 and rotating the handle 94, the entire filter assembly 9 can be unscrewed for replacement or cleaning. Maintenance is extremely convenient, without the need to disassemble the entire outer shell 1. This achieves quick and tool-based disassembly and assembly of the filter element, significantly reducing maintenance time and operational difficulty, while achieving the goals of high-efficiency filtration and convenient maintenance, thus improving the performance.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An oil filter for a diesel engine, comprising a housing (1), characterized in that: The housing (1) is equipped with a filter assembly (9) for filtering diesel fuel and is easy to disassemble; The filtration assembly (9) includes a detachable half-filter cartridge (91), one end of which is located inside the outer shell (1). The end of the detachable half-filter cartridge (91) near the inside of the outer shell (1) is connected to the inside of the outer shell (1) by a thread. The surface of the detachable half-filter cartridge (91) is provided with a plurality of evenly distributed filter holes (92), and the surface of the detachable half-filter cartridge (91) is provided with a filter element (93).

2. The oil filter for a diesel engine according to claim 1, characterized in that: A handle (94) is fixedly provided on the other side wall of the detachable half filter cartridge (91), and the end of the handle (94) near the detachable half filter cartridge (91) passes through the center of one side of the filter element (93).

3. The oil filter for a diesel engine according to claim 2, characterized in that: The inner two side walls of the outer shell (1) are fixedly provided with O-rings (95), wherein the O-ring (95) near the side of the detachable half filter cartridge (91) is sleeved on the outer wall of one side of the detachable half filter cartridge (91) and provided on the other side of the filter element (93).

4. The oil filter for a diesel engine according to claim 3, characterized in that: The outer shell (1) is hinged to the back filter chamber door (3) and the front filter chamber door (2) on both sides respectively, and the two O-ring seals (95) are respectively located at the joint between the back filter chamber door (3) and the front filter chamber door (2) and the outer shell (1).

5. The oil filter for a diesel engine according to claim 4, characterized in that: An oil outlet seat (4) is fixedly provided on one side of the filter chamber door (3). The oil outlet seat (4) is connected to the interior of the detachable half filter cartridge (91). The end of the handle (94) away from the detachable half filter cartridge (91) abuts against the center of the inner wall of the filter chamber door (2).

6. The oil filter for a diesel engine according to claim 4, characterized in that: The pre-filter chamber (2) has a transparent observation window (8) embedded in the center. The top side of the outer shell (1) is fixed with an oil inlet pipe (7), which is connected to the interior of the outer shell (1).

7. The oil filter for a diesel engine according to claim 1, characterized in that: The outer shell (1) is fixed to the top of two horizontally distributed mounting bases (5) by bolts, and two load-bearing blocks (6) are fixedly arranged in front and behind at the top of the inner end of the mounting base (5).

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