Oil filter

Abstract

The utility model discloses an oil filter. The technical key points are as follows: the filter comprises a cylindrical shell as well as a filter element, an anti-reverse sheet, a bypass valve and a pressure spring which are arranged in the shell, an inlet hole and an outlet hole are formed in one end of the shell, a gasket is arranged at one end, provided with the inlet hole and the outlet hole, of the shell, the inlet hole and the outlet hole are both positioned in the gasket, the inlet hole is connected with the outer side of the filter element and the inlet end of the bypass valve, and the outlet hole is connected with the outlet end of the bypass valve. An outlet hole is formed in the shell, the outlet hole is connected with the inner side of the filter element and the output end of the bypass valve, and the automobile cold start filter is characterized in that an oil storage valve is arranged in the shell, the inlet end of the oil storage valve is connected with the inner side of the filter element, and the output end of the oil storage valve is connected with the outlet hole. The engine oil filtered in the filter element passes through the oil storage valve at the first time and then enters the engine, lubrication is provided for the engine, better and more timely protection is provided for the engine, and the service life of the engine is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of oil filters, and more specifically, to an oil filter. Background Art

[0002] The oil filter is responsible for filtering the medium in the automobile lubrication system. Its function is to filter out mechanical impurities and colloids in the oil, ensure the cleanliness of the lubricating oil, and extend the service life of parts. A bypass valve is provided at the bottom of the filter. When the engine is cold-started or the oil impurity content is too high to prevent the oil from passing through the filter paper, the bypass valve is opened under the pressure of the oil pump to ensure that the oil can smoothly circulate back to the engine.

[0003] When the vehicle is cold-started, how to quickly return the clean oil to the engine can provide better protection for the engine. Although setting the bypass valve prevents the engine from running without oil, the unfiltered oil in this part will shorten the service life of the engine. Content of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide an oil filter to solve the above technical problems.

[0005] To achieve the above purpose, the utility model provides the following technical solution: An oil filter includes a cylindrical shell, and a filter element, a reverse prevention piece, a bypass valve, and a pressure spring arranged in the shell. One end of the shell is provided with an inlet hole and an outlet hole. The shell is provided with a sealing ring at the end where the inlet hole and the outlet hole are arranged. The inlet hole and the outlet hole are both located within the sealing ring. The inlet hole is connected to the outside of the filter element and the inlet end of the bypass valve. The outlet hole is connected to the inside of the filter element and the outlet end of the bypass valve. A storage oil valve is arranged in the shell. The inlet end of the storage oil valve is connected to the inside of the filter element, and the outlet end of the storage oil valve is connected to the outlet hole.

[0006] As a further improvement of the utility model, the filter element includes:

[0007] A skeleton, made of metal, in a cylindrical shape, located inside the filter element;

[0008] Filter paper, folded and arranged outside the skeleton;

[0009] An upper end cover, arranged at one end of the filter element close to the storage oil valve, adhesively fixed to the filter paper. The reverse prevention piece is sleeved outside the upper end cover, and the storage oil valve is connected to the upper end cover;

[0010] A lower end cover, arranged at one end of the filter element close to the bypass valve, adhesively fixed to the filter paper.

[0011] As a further improvement of the utility model, the storage oil valve includes:

[0012] The connecting seat is cylindrical. A connecting portion extending outward is provided on the connecting seat. The connecting portion is annular, and the connecting portion is fixedly connected to the upper end cover.

[0013] The output hole is provided on the connecting seat, and the output hole is coaxially arranged with the outlet hole.

[0014] The mounting sleeve is fixedly arranged on the connecting seat. The mounting sleeve is located on the side of the connecting seat facing the outlet hole. An oil outlet hole is provided on the side of the mounting sleeve.

[0015] The snap ring is arranged inside the mounting sleeve.

[0016] The oil storage block is slidably arranged inside the mounting sleeve, and the oil storage block can close the output hole.

[0017] The oil storage spring is arranged inside the mounting sleeve, one end abuts against the snap ring, and the other end abuts against the oil storage block.

[0018] As a further improvement of the present utility model, the upper end cover is provided with a guiding edge extending outward.

[0019] As a further improvement of the present utility model, a positioning convex ring extending towards the oil storage valve is provided on the upper end cover.

[0020] As a further improvement of the present utility model, the upper end cover, the guiding edge, and the positioning convex ring are integrally formed by stamping.

[0021] As a further improvement of the present utility model, a sealing groove is provided at one end of the housing where the inlet hole and the outlet hole are provided, and the sealing ring is located in the sealing groove.

[0022] The beneficial effect of the present utility model is that when using this oil filter during cold start of an automobile, the filtered oil inside the filter element will pass through the oil storage valve first and then enter the engine, providing lubrication to the engine, providing better and more timely protection to the engine, and extending the service life of the engine. Description of the Drawings

[0023] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0024] Figure 2 It is a schematic diagram of the structure of the oil storage valve.

[0025] Marking description: 1. Housing; 11. Manhole; 12. Outlet hole; 13. Sealing ring; 14. Sealing groove; 2. Filter element; 21. Skeleton; 22. Filter paper; 23. Upper end cover; 231. Guide edge; 232. Positioning convex ring; 24. Lower end cover; 3. Anti-reverse piece; 4. Bypass valve; 5. Pressure spring; 6. Oil storage valve; 61. Connecting seat; 62. Connecting part; 63. Output hole; 64. Mounting sleeve; 641. Oil outlet hole; 65. Snap ring; 66. Oil storage block; 67. Oil storage spring. Specific embodiments

[0026] The following will further elaborate on the present utility model in combination with the embodiments given in the accompanying drawings.

[0027] For the up, down, left, and right directions of this application, the drawings are used as a reference and do not represent the positions of the oil filter in the actual use process.

[0028] Referring to Figure 1 - Figure 2 As shown, an oil filter of this embodiment includes a cylindrical housing 1 and a filter element 2, an anti-reverse piece 3, a bypass valve 4, and a pressure spring 5 arranged inside the housing 1. One end of the housing 1 is provided with a manhole 11 and an outlet hole 12. The housing 1 is provided with a sealing ring 13 at the end where the manhole 11 and the outlet hole 12 are arranged. Both the manhole 11 and the outlet hole 12 are located inside the sealing ring 13. The manhole 11 is connected to the outside of the filter element 2 and the inlet end of the bypass valve 4, and the outlet hole 12 is connected to the inside of the filter element 2 and the outlet end of the bypass valve 4. An oil storage valve 6 is arranged inside the housing 1. The inlet end of the oil storage valve 6 is connected to the inside of the filter element 2, and the outlet end of the oil storage valve 6 is connected to the outlet hole 12.

[0029] Through the above technical solution, when using this oil filter during the cold start of an automobile, the filtered oil inside the filter element 2 will first pass through the oil storage valve 6 and then enter the engine, providing lubrication for the engine, providing better and more timely protection for the engine, and extending the service life of the engine.

[0030] The specific principle is as follows: During the normal operation of the vehicle, engine oil enters the oil filter from the inlet hole 11. The oil pressure causes the anti-reverse piece 3 to open, and the engine oil passes from the outside of the filter element 2 to the inside after filtration. Then the oil pressure pushes open the oil storage valve 6, and the filtered engine oil can smoothly enter the engine interior. Compared with the oil filter without the oil storage valve 6, the engine oil needs to overcome a certain resistance (pushing open the oil storage valve 6), which has a slight impact on the oil flow rate. When the engine shuts down in this situation, the oil pressure disappears. At this time, the anti-reverse piece 3 resets, and the oil storage valve 6 closes. The oil filter is filled with a can of engine oil (both filtered and unfiltered), preparing for the next cold start. After the next cold start, oil pressure is immediately generated. The filtered engine oil will pass through the oil storage valve 6 and enter the engine first to provide lubrication for the engine, while the unfiltered engine oil will enter the interior of the filter element 2 under the action of the oil pressure for normal filtration.

[0031] This design ignores the installation angle and orientation of the oil filter, and can reserve engine oil (both filtered and unfiltered) in the oil filter, and enter the engine during cold start faster to provide lubrication and protection for it.

[0032] As a specific implementation of the improvement, the filter element 2 includes:

[0033] A skeleton 21, made of metal, in a cylindrical shape, located inside the filter element 2;

[0034] Filter paper 22, folded and arranged outside the skeleton 21;

[0035] An upper end cover 23, arranged at one end of the filter element 2 close to the oil storage valve 6, adhesively fixed to the filter paper 22. The anti-reverse piece 3 is sleeved outside the upper end cover 23, and the oil storage valve 6 is connected to the upper end cover 23;

[0036] A lower end cover 24, arranged at one end of the filter element 2 close to the bypass valve 4, adhesively fixed to the filter paper 22.

[0037] Through the above technical solution, the filter paper 22 is sleeved outside the skeleton 21, and the upper end cover 23 and the lower end cover 24 are adhesively fixed, with a simple structure, high stability, and high production efficiency.

[0038] Before assembling the skeleton 21, the upper end cover 23, the lower end cover 24, and the filter paper 22, first fix the oil storage valve 6 to the upper end cover 23, and then install the filter element 2, which does not affect the production and installation of the filter element 2. Moreover, the oil storage valve 6 is fixedly connected to the upper end cover 23, with a large connection area and high stability.

[0039] As a specific implementation of the improvement, the oil storage valve 6 includes:

[0040] The connecting base 61 is cylindrical. A connecting portion 62 extending outward is provided on the connecting base 61. The connecting portion 62 is annular, and the connecting portion 62 is fixedly connected to the upper end cover 23.

[0041] The output hole 63 is provided on the connecting base 61, and the output hole 63 is coaxially arranged with the outlet hole 12.

[0042] The mounting sleeve 64 is fixedly arranged on the connecting base 61. The mounting sleeve 64 is located on the side of the connecting base 61 facing the outlet hole 12. An oil outlet hole 641 is provided on the side of the mounting sleeve 64.

[0043] The snap ring 65 is arranged inside the mounting sleeve 64.

[0044] The oil storage block 66 is slidably arranged inside the mounting sleeve 64, and the oil storage block 66 can close the output hole 63.

[0045] The oil storage spring 67 is arranged inside the mounting sleeve 64, one end abuts against the snap ring 65, and the other end abuts against the oil storage block 66.

[0046] Through the above technical solution, the connecting ring and the upper end cover 23 are fixedly welded by surface to surface, with a large contact area and high stability.

[0047] The process of the filtered engine oil passing through the oil storage valve 6 is as follows: The engine oil pushes open the oil storage block 66, so that the oil storage spring 67 is further compressed. Then the engine oil enters the mounting sleeve 64 from the output hole 63, and then leaves from the oil outlet hole 641, enters the connecting base 61, and then leaves from the outlet hole 12 to supply oil to the engine.

[0048] When the engine shuts down, the process of closing the oil storage valve 6 is as follows: The engine oil pressure decreases, the oil storage spring 67 continuously resets, and then drives the oil storage block 66 to move towards the output hole 63. The oil storage block 66 closes the output hole 63, and at this time the oil storage valve 6 is closed.

[0049] Specifically, when the engine oil pressure drops, the anti-reverse piece 3 and the oil storage spring 67 reset at the same time, that is, the filtered engine oil is stored inside the filter element 2, and the unfiltered engine oil is stored outside. This avoids the situation that the engine oil in the liquid storage tank is too little, and the filtered engine oil moves through the filter paper 22 to the outside of the filter element 2. The shell 1 is filled with engine oil so that the filter element 2 always has filtered engine oil.

[0050] As a specific improved implementation manner, the upper end cover 23 is provided with a guiding edge 231 extending outward.

[0051] Through the above technical solution, the inclined guiding edge 231 cooperates with the deformed anti-reverse strip, having a better guiding effect, which can improve the flow rate of the engine oil and further improve the oil supply speed of the engine oil to the engine.

[0052] As a specific embodiment of the improvement, a positioning convex ring 232 extending towards the oil storage valve 6 is provided on the upper end cover 23.

[0053] Through the above technical solution, the positioning convex ring 232 positions the link seat and the connecting portion 62, improving the assembly efficiency of the oil storage valve 6 and the upper end cover 23, and thus improving the production efficiency.

[0054] As a specific embodiment of the improvement, the upper end cover 23, the guiding edge 231, and the positioning convex ring 232 are integrally formed by stamping.

[0055] Through the above technical solution, the upper end cover 23, the guiding edge 231, and the positioning convex ring 232 are integrally formed by stamping, with high structural strength.

[0056] As a specific embodiment of the improvement, a sealing groove 14 is provided at one end of the housing 1 where the inlet hole 11 and the outlet hole 12 are provided, and the sealing ring 13 is located in the sealing groove 14.

[0057] Through the above technical solution, the sealing ring 13 is located in the sealing groove 14, with a stable position and convenient installation.

[0058] The above are only the preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the concept of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements should also be regarded as within the protection scope of the present invention.

Claims

1. An oil filter, comprising a cylindrical housing (1), a filter element (2), an anti-reverse plate (3), a bypass valve (4), and a pressure spring (5) arranged in the housing (1), wherein one end of the housing (1) is provided with an inlet hole (11) and an outlet hole (12), and the housing (1) is provided with a sealing ring (13) at one end where the inlet hole (11) and the outlet hole (12) are arranged, wherein the inlet hole (11) and the outlet hole (12) are both located in the sealing ring (13), wherein the inlet hole (11) is connected to the outer side of the filter element (2) and the inlet end of the bypass valve (4), and wherein the outlet hole (12) is connected to the inner side of the filter element (2) and the outlet end of the bypass valve (4), and wherein: An oil storage valve (6) is provided in the housing (1), the inlet end of the oil storage valve (6) is connected to the inner side of the filter element (2), and the output end of the oil storage valve (6) is connected to the outlet hole (12).

2. The oil filter according to claim 1, characterized in that: The filter element (2) comprises: The frame (21) is made of metal, is in a cylindrical shape, and is located inside the filter element (2); Filter paper (22), folded and arranged on the outside of the frame (21); An upper end cover (23) is arranged at one end of the filter element (2) close to the oil storage valve (6) and is fixed to the filter paper (22) by gluing. The anti-reversal sheet (3) is sleeved on the outer side of the upper end cover (23). The oil storage valve (6) is connected to the upper end cover (23). The lower end cover (24) is arranged at one end of the filter element (2) close to the bypass valve (4) and is fixed to the filter paper (22) by gluing.

3. The oil filter according to claim 2, characterized in that: The oil storage valve (6) comprises: The connecting seat (61) is cylindrical, and a connecting portion (62) extending outward is provided on the connecting seat (61). The connecting portion (62) is annular, and the connecting portion (62) is fixedly connected to the upper end cover (23); An output hole (63) is arranged on the connecting seat (61), and the output hole (63) is coaxially arranged with the outlet hole (12); A mounting sleeve (64) is fixedly mounted on the connecting seat (61), the mounting sleeve (64) being located on a side of the connecting seat (61) facing the outlet hole (12); an oil outlet hole (641) is provided on a side edge of the mounting sleeve (64); A snap ring (65) is arranged on the inner side of the mounting sleeve (64); An oil storage block (66) is slidably disposed in the mounting sleeve (64), and the oil storage block (66) can close the output hole (63); The oil storage spring (67) is arranged in the mounting sleeve (64), one end of which is in conflict with the snap ring (65) and the other end of which is in conflict with the oil storage block (66).

4. The oil filter according to claim 2, characterized in that: The upper end cover (23) is provided with a guide edge (231) extending outwards.

5. The oil filter according to claim 2, 3 or 4, characterized in that: The upper end cover (23) is provided with a positioning convex ring (232) extending toward the oil storage valve (6).

6. The oil filter according to claim 5, characterized in that: The upper end cover (23), the guide edge (231), and the positioning protruding ring (232) are integrally formed by stamping.

7. The oil filter according to claim 1, characterized in that: The housing (1) is provided with a sealing groove (14) at one end where the inlet hole (11) and the outlet hole (12) are provided, and the sealing ring (13) is located in the sealing groove (14).

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