Oil filter with normally open bypass flow channel

Abstract

The utility model discloses an engine oil filter with a normally open bypass runner, which relates to the technical field of engine oil filtration, and comprises a shell and an engine oil filter element positioned in the shell, the top end and the bottom end of the shell are respectively in threaded connection with a top end cover and a bottom end cover, an oil outlet pipe matched with the engine oil filter element is connected to the center of the top end cover in a threaded mode, and a plurality of oil inlet holes are formed in the upper surface of the top end cover. The engine oil can always flow to the engine through the L-shaped normally-open oil pipe, abrasion and faults of engine parts caused by insufficient supply of the engine oil are avoided, the reliability and durability of the engine are improved, the through-flow area of the oil inlet frame can be automatically adjusted through the oil inlet control assembly according to the actual working condition of the engine oil, and the service life of the engine is prolonged. Stable and reasonable engine oil flow is guaranteed, and the lubricating effect of the engine is further optimized.

Description

TECHNICAL FIELD

[0001] The utility model relates to machine oil filter technology field, concretely is a machine oil filter with normally open bypass flow channel. BACKGROUND

[0002] In the current machine oil filter module, the main oil passage is often adopted one-way flow channel, namely oil inlet, machine oil cooler, filter core, oil outlet, the existing filter generally installs bypass valve at the bottom, and the bypass valve acts when the paper core assembly is blocked, so that the machine oil can directly enter the inside of the paper core assembly from the bypass valve and leave from the oil outlet, through the retrieval, the patent with Chinese patent publication No. CN221921104U discloses a machine oil filter with bypass flow channel, and the machine oil filter comprises a shell, an inner cavity of the shell, a machine oil cooler, a machine oil inlet and a machine oil outlet installed in the inner cavity and a filter assembly communicated with the machine oil cooler.

[0003] The above technical scheme can shunt a part of machine oil before entering the machine oil cooler, so that the machine oil is directly filtered into the filter core barrel, thereby achieving the effect of reducing pressure drop. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of the prior art, the utility model provides a machine oil filter with normally open bypass flow channel, which solves the problems proposed in the background art.

[0005] To achieve the above object, the utility model is realized by the following technical scheme: a machine oil filter with normally open bypass flow channel, comprising an outer shell and a machine oil filter core located inside the outer shell, the top end and the bottom end of the outer shell are respectively threadedly connected with a top end cover and a bottom end cover, the center position of the top end cover is threadedly connected with an oil outlet pipe matched with the machine oil filter core, a plurality of oil inlet holes are formed in the upper surface of the top end cover, one side of the oil outlet pipe is fixedly connected with an L-shaped normally open oil pipe, the bottom end of the L-shaped normally open oil pipe is fixedly connected with an oil inlet control assembly.

[0006] The oil inlet control assembly comprises an oil inlet frame fixedly connected to the bottom end of the L-shaped normally open oil pipe, the inner walls of the oil inlet frame are rotatably connected with baffles on both sides, torsional springs are fixedly connected between the inner walls of the oil inlet frame and the two sides of the baffles, and the two baffles are separated from each other.

[0007] Preferably, the bottom end of the oil inlet frame is fixedly installed with a magnetic filter screen, which can filter the machine oil entering the inside of the L-shaped normally open oil pipe.

[0008] Preferably, the inside of the magnetic filter screen is rotatably connected with a rotating shaft, the bottom end of the rotating shaft is fixedly connected with a scraper in contact with the lower surface of the magnetic filter screen, and the top end of the rotating shaft is fixedly connected with a turbine, which can drive the turbine to rotate under the condition of oil flow, and then drive the rotating shaft and the scraper to rotate, so that the magnetic filter screen can be cleaned.

[0009] Preferably, the top end of the L-shaped normally open oil pipe is fixedly connected with a one-way valve close to the oil outlet pipe, which can prevent backflow of oil during normal operation and ensure the normal filtering function of the filter.

[0010] Preferably, the upper surface of the bottom end cover is fixedly connected with an annular magnet, which can adsorb metal impurities in the oil.

[0011] Preferably, the upper surface of the bottom end cover and the bottom end of the oil outlet pipe are provided with sealing pads between the two ends of the oil filter element, which can improve the sealing performance of the two ends of the filter element.

[0012] The utility model provides a kind of oil filter with normally open bypass flow channel. It has the following beneficial effects:

[0013] 1, the oil filter with normally open bypass flow channel, by the setting of L-shaped normally open oil pipe, so that in the special conditions such as oil filter element blockage or engine cold start, oil can always flow to engine through L-shaped normally open oil pipe, avoid the engine parts abrasion and failure caused by insufficient oil supply, improve the reliability and durability of engine.

[0014] 2, the oil filter with normally open bypass flow channel, by oil inlet control assembly not only can automatically adjust the flow area of oil inlet frame according to the actual working condition of oil, ensure the stability and reasonableness of oil flow, further optimize the lubrication effect of engine, and can also filter and self-clean oil, thereby improve the service life of engine.

[0015] 3, the oil filter with normally open bypass flow channel, by. ACCURACY

[0016] Fig. 1 It is the overall structure schematic diagram of the utility model;

[0017] Fig. 2 It is the internal structure schematic diagram of the utility model;

[0018] Fig. 3 It is the internal structure schematic diagram of the oil inlet frame of the utility model.

[0019] In the diagram, 1. Outer casing; 2. Oil filter element; 3. Top end cap; 4. Bottom end cap; 5. Oil outlet pipe; 6. Oil inlet hole; 7. L-shaped normally open oil pipe; 8. Oil inlet frame; 9. Baffle; 10. Magnetic filter screen; 11. Shaft; 12. Scraper; 13. Turbine; 14. Check valve; 15. Ring magnet. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example: Figs. 1 to 3 As shown, an oil filter with a normally open bypass flow channel includes a housing 1 and an oil filter element 2 located inside the housing 1. The top and bottom ends of the housing 1 are respectively threaded with a top end cap 3 and a bottom end cap 4. The center of the top end cap 3 is threaded with an oil outlet pipe 5 that mates with the oil filter element 2. The upper surface of the top end cap 3 has multiple oil inlet holes 6. One side of the oil outlet pipe 5 is fixedly connected to an L-shaped normally open oil pipe 7. The L-shaped normally open oil pipe 7 ensures that the oil can always flow to the engine through the L-shaped normally open oil pipe 7 under special conditions such as oil filter element 2 blockage or engine cold start, avoiding engine component wear and failure due to insufficient oil supply, and improving engine reliability and durability.

[0022] The bottom end of the L-shaped normally open oil pipe 7 is fixedly connected to an oil inlet control assembly. The oil inlet control assembly includes an oil inlet frame 8 fixedly connected to the bottom end of the L-shaped normally open oil pipe 7. Both sides of the inner wall of the oil inlet frame 8 are rotatably connected to baffles 9. Both sides of the baffles 9 are fixedly connected to the inner wall of the oil inlet frame 8. The two baffles 9 are separated from each other and can automatically adjust the flow area of ​​the oil inlet frame 8 according to the actual working conditions of the engine oil, so as to ensure the stability and rationality of the engine oil flow and further optimize the lubrication effect of the engine.

[0023] A magnetic filter screen 10 is embedded and fixedly installed at the bottom of the oil inlet frame 8. A rotating shaft 11 is rotatably connected through the inside of the magnetic filter screen 10. A scraper 12 that contacts the lower surface of the magnetic filter screen 10 is fixedly connected to the bottom of the rotating shaft 11. A turbine 13 is fixedly connected to the top of the rotating shaft 11. The magnetic filter screen 10 can filter the engine oil entering the oil inlet frame 8 to avoid affecting the engine's service life. When the pressure increases, the flow rate of the engine oil entering the oil inlet frame 8 increases, which will drive the turbine 13 to rotate. The rotating shaft 11 can drive the scraper 12 to rotate, which can scrape away the impurities adsorbed at the bottom of the magnetic filter screen 10 to avoid affecting normal flow.

[0024] The top end of the L-shaped normally open oil pipe 7 is fixedly connected with a one-way valve 14 near the oil outlet pipe 5, and the one-way valve 14 is arranged to effectively prevent backflow of the engine oil during normal operation, thereby ensuring the normal filtering function of the filter.

[0025] The upper surface of the bottom end cover 4 is fixedly connected with an annular magnet 15, which can adsorb metal impurities in the engine oil, thereby improving the filtering effect of the engine oil.

[0026] The upper surface of the bottom end cover 4 and the bottom end of the oil outlet pipe 5 are both provided with sealing pads between the two ends of the oil filter element 2, thereby improving the sealing performance of the two ends of the oil filter element 2.

[0027] Working principle: when in use, the arrangement of the L-shaped normally open oil pipe 7 ensures that the engine oil can always flow to the engine through the L-shaped normally open oil pipe 7 under special working conditions such as clogging of the oil filter element 2 or cold start of the engine, thereby avoiding engine component wear and failure caused by insufficient engine oil supply, and improving the reliability and durability of the engine.

[0028] When the engine oil pressure changes, the baffles 9 on both sides will automatically rotate correspondingly, and the flow area of the oil inlet frame 8 can be automatically adjusted according to the actual working condition of the engine oil, thereby ensuring the stability and rationality of the engine oil flow, and further optimizing the lubricating effect of the engine.

[0029] The magnetic filter screen 10 is arranged to filter the engine oil entering the inside of the oil inlet frame 8, thereby avoiding affecting the service life of the engine. When the pressure increases, the engine oil entering the inside of the oil inlet frame 8 will flow faster, thereby driving the turbine 13 to rotate, and the scraper 12 can be driven to rotate through the rotating shaft 11, thereby scraping off the impurities adsorbed on the bottom of the magnetic filter screen 10, and avoiding affecting the normal flow.

[0030] The arrangement of the one-way valve 14 effectively prevents backflow of the engine oil during normal operation, thereby ensuring the normal filtering function of the filter.

[0031] The above shows and describes the basic principle and main features of the present application and the advantages of the present application. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0032] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature or implementation described herein. The specification can include implicit combinations of explicitly mentioned features and / or implicit combinations of implicitly mentioned features. Such combinations are also expressly included within the scope of the specification and an embodiment.

Claims

1. An oil filter having a normally open bypass flow path, comprising a housing (1) and an oil filter element (2) located inside the housing (1), characterized in that: The top end and bottom end of the shell (1) are respectively threadedly connected with a top end cover (3) and a bottom end cover (4), the center position of the top end cover (3) is threadedly connected with an oil outlet pipe (5) matched with the oil filter element (2), the upper surface of the top end cover (3) is provided with a plurality of oil inlet holes (6), one side of the oil outlet pipe (5) is fixedly connected with an L-shaped normally open oil pipe (7), and the bottom end of the L-shaped normally open oil pipe (7) is fixedly connected with an oil inlet control assembly. The oil inlet control assembly comprises an oil inlet frame (8) fixedly connected to the bottom end of the L-shaped normally open oil pipe (7), and baffle plates (9) are rotatably connected to the inner walls of the oil inlet frame (8) on both sides.

2. The oil filter with a normally open bypass passage according to claim 1, characterized in that: The bottom end of the oil inlet frame (8) is embeddedly and fixedly provided with a magnetic filter screen (10).

3. The oil filter with a normally open bypass flow path according to claim 2, wherein: The inside of the magnetic filter screen (10) is rotatably connected with a rotating shaft (11), the bottom end of the rotating shaft (11) is fixedly connected with a scraper (12) in contact with the lower surface of the magnetic filter screen (10), and the top end of the rotating shaft (11) is fixedly connected with a turbine (13).

4. The oil filter with a normally open bypass flow passage according to claim 1, characterized in that: The top end of the L-shaped normally open oil pipe (7) is fixedly connected with a one-way valve (14) close to the oil outlet pipe (5).

5. The oil filter with a normally open bypass flow path of claim 1, wherein: The upper surface of the bottom end cover (4) is fixedly connected with an annular magnet (15).

6. The oil filter with a normally open bypass flow passage according to claim 1, characterized in that: The upper surface of the bottom end cover (4) and the bottom end of the oil outlet pipe (5) are provided with sealing pads between the two ends of the oil filter element (2).

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