Single-inlet multi-outlet filter and filtering system

By incorporating a partition plate and multiple layers of filter screens within the filter housing, the single-inlet multi-outlet filter solves the problems of increased filter costs and space constraints in the case of multiple oil pumps, achieving the effect of liquid supply for multiple devices and compact space.

CN223831912UActive Publication Date: 2026-01-27MIANYANG FULIN PRECISION MACHINING
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Patent Information

Application Number
CN202520374556.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-05
Publication Date
2026-01-27
Estimated Expiration
2035-03-05

AI Technical Summary

Technical Problem

In the existing technology, a conventional single suction oil filter in automobiles cannot meet the multiple filtration needs in the case of multiple oil pumps, resulting in increased costs and limited space for internal parts.

Method used

Design a single-inlet, multi-outlet filter. By setting a partition plate inside the filter housing, the filtration space is divided into a main flow zone and multiple non-interconnected branch flow zones. Multiple layers of filter screens are set in the branch flow zones to achieve different levels of filtration and meet the liquid cleanliness requirements of different equipment.

Benefits of technology

It meets the liquid supply needs of multiple devices, reduces the amount of filtration equipment used, lowers costs, improves space utilization, and reduces flow pressure loss.

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Abstract

The utility model discloses a single-inlet multi-outlet filter and a filter system, the single-inlet multi-outlet filter comprises a filter space arranged in a filter shell, a partition plate and a filter part are arranged in the filter space, the filter part divides the filter space into a main flow area and a branch flow area, and the branch flow area is provided with a plurality of filter holes. The partition plate is positioned in the branch area and divides the branch area into at least two sub-areas which are not communicated with each other; the filter piece is arranged in the filter shell and is used for at least one layer of filtration, so that liquid filtered by different layers flows into each sub-area. The filtering system comprises the single-inlet multi-outlet filter. The space in the filter shell is divided and arranged, a plurality of sub-areas are formed in the filter shell, and the sub-areas are matched with the filter piece to filter in different levels and output liquid with different cleanliness outwards, so that the liquid use requirements of different devices are met; meanwhile, multi-layer step-by-step filtration is beneficial to reducing adhesion of impurity particles on a single filter layer, and flow pressure loss of the oil suction filter is reduced. Therefore, the problem that multiple filtering devices are used in the prior art is solved.
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Description

Technical Field

[0001] This utility model relates to the field of filtration equipment technology, specifically to a single-inlet multi-outlet filter and filtration system. Background Technology

[0002] With the popularization and development of automobiles, users are focusing on cost-effectiveness. Reducing the cost of automobile manufacturing while maintaining the same performance is beneficial to maintaining competitiveness among similar products. The most direct way to reduce costs while meeting performance requirements is to integrate auxiliary parts. When the functional requirements of the powertrain increase, the conventional single suction filter can no longer meet the design requirements. In the case of multiple oil pumps, the original conventional suction filter requires multiple suction filters with different filtration requirements, which often leads to increased costs and tight space for internal parts. Utility Model Content

[0003] The technical problem to be solved by this utility model is that the existing oil suction filter has multiple parts. The purpose is to provide a single-inlet multi-outlet filter and filtration system to solve the above-mentioned problem.

[0004] This utility model is achieved through the following technical solution:

[0005] Firstly, this utility model provides a single-inlet multi-outlet filter, including a filter housing and a filter element;

[0006] The filter housing has a filtration space, and the filtration space is provided with a partition plate and the filter element. The filter element divides the filtration space into a main flow area and a tributary area. The partition plate is located in the tributary area and divides the tributary area into at least two non-connected sub-areas.

[0007] The filter element is disposed within the filter housing and is used for at least one layer of filtration, so that liquids filtered through different layers flow into each sub-zone.

[0008] In one possible design, the filter element includes a first filter screen and a second filter screen. The first filter screen is used to separate the main flow area from the tributary area, and the second filter screen is set at the inlet of a portion of the sub-area. Accordingly, when there are multiple second filter screens and they are respectively set on multiple sub-areas, the pore sizes of the multiple second filter screens are different.

[0009] In one possible design, at least one second filter is provided on the sub-area where a second filter is provided, and when multiple second filters are provided, the multiple second filters are stacked.

[0010] In one possible design, the first filter screen is a metal filter screen, and the second filter screen is at least one of a paper filter screen and a fiber filter screen.

[0011] In one possible design, both the first and second filters include a frame and a filter body. The frame has at least one pore for filtration, and each pore has a filter body embedded in it.

[0012] In one possible design, the filter housing includes an upper shell, a lower shell, and pipes. The upper shell is fixedly connected to the lower shell and encloses the filtration space. Multiple pipes are provided and are respectively connected to the upper shell and the lower shell. Among the multiple pipes, one is connected to the main flow area, and the rest are respectively connected to the tributary areas.

[0013] In one possible design, one of the upper and lower shells is provided with multiple support columns, and the other is provided with multiple bases. The support columns and bases correspond one-to-one, and there is a gap between the corresponding support columns and bases. Accordingly, the multiple gaps are interconnected and form a filter groove for installing filter elements.

[0014] In one possible design, the upper shell and the lower shell are connected by a mortise and tenon structure, and at the connection between the upper shell and the lower shell, one of them is provided with a support platform adapted to the filter element, and the other is provided with a pressure post extending towards the support platform. A pressing groove adapted to the filter element is formed between the support platform and the pressure post, and the end of the filter element is inserted into the pressing groove accordingly.

[0015] In one possible design, the pipeline includes an input pipe connected to the lower shell and at least two output pipes connected to the upper shell. The input pipe is connected to the main flow area, and the output pipes are connected to the branch flow area and are set in a one-to-one correspondence with the sub-areas. One of the output pipes is equipped with an auxiliary pipe, which is connected to the outside and the opening and closing of the auxiliary pipe is controlled by a sealing cap.

[0016] Secondly, this utility model provides a filtration system, including the aforementioned single-inlet multi-outlet filter.

[0017] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0018] By dividing and arranging the space within the filter housing, multiple sub-zones are formed. These sub-zones work in conjunction with the filter elements to perform different levels of filtration, allowing each sub-zone to output liquids of varying cleanliness to meet the liquid usage requirements of different devices. Simultaneously, multi-stage filtration helps reduce the adhesion of impurity particles to a single filter layer, minimizing the flow rate and pressure drop of the oil suction filter. Therefore, this single-inlet, multi-outlet filter meets the liquid requirements of multiple devices, replacing the need for multiple filtration devices in existing technologies and effectively reducing the number of filtration devices required.

[0019] Current lubrication systems generally combine housing oil passages with oil pipe components, resulting in a large enveloping housing and long lubrication oil passages. Therefore, in the proposed single-inlet multi-outlet filter, the filter housing is constructed as an enveloping housing with short pipes, reducing the material used in the enveloping housing, lowering its cost, and making the assembly structure more compact. This effectively reduces the risks associated with machining long oil passages. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is an exploded view of a single-inlet, multi-outlet filter.

[0022] Figure 2 This is a schematic diagram of a single-inlet, multi-outlet filter.

[0023] Figure 3 This is a cross-sectional view of a single-inlet, multi-outlet filter.

[0024] Figure 4 for Figure 3 A schematic diagram of the isometric structure.

[0025] The attached diagram shows the markings and corresponding component names:

[0026] 1. Filter housing; 11. Upper housing; 12. Lower housing; 13. Pipe; 101. Divider plate; 102. Main stream zone; 103. Tributary zone; 104. Sub-zone; 105. Support column; 106. Base; 107. Support platform; 108. Pressure column; 131. Inlet pipe; 132. Outlet pipe; 133. Additional pipe; 2. Filter element; 21. First filter screen; 22. Second filter screen; 201. Frame; 202. Filter screen body. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0028] Example:

[0029] In existing technologies, multiple filtration devices are used to filter different liquids for different usage needs, and then the liquids are supplied separately. In vehicles and other equipment, due to limited space, the use of multiple filtration devices will increase costs and make the placement of internal components more cramped.

[0030] Therefore, a single-input multi-output filter is proposed here, specifically: such as Figures 1-4 As shown, a single-inlet multi-outlet filter includes a filter housing 1 and a filter element 2.

[0031] The filter housing 1 has a filter space, and the filter space is provided with a partition plate 101 and the filter element 2. The filter element 2 divides the filter space into a main flow area 102 and a branch flow area 103. The partition plate 101 is located in the branch flow area 103 and divides the branch flow area 103 into at least two non-connected sub-areas 104.

[0032] The filter element 2 is disposed inside the filter housing 1 and is used for at least one layer of filtration so that each sub-zone 104 receives liquid that has been filtered through different layers.

[0033] In the described single-inlet multi-outlet filter, the space within the filter housing 1 is divided and arranged to form multiple sub-zones 104. These sub-zones, in conjunction with the filter element 2, perform different levels of filtration, allowing each sub-zone 104 to output liquid with varying degrees of cleanliness to meet the liquid usage requirements of different devices. Simultaneously, multi-layer, step-by-step filtration helps reduce the adhesion of impurity particles to a single filter layer, minimizing the flow rate and pressure loss of the oil suction filter. Therefore, the single-inlet multi-outlet filter meets the liquid requirements of multiple devices, replacing the need for multiple filtration devices in existing technologies and effectively reducing the amount of filtration equipment required.

[0034] Furthermore, current lubrication systems generally combine housing oil passages with oil pipe components, resulting in a large enveloping housing and long lubrication oil passages. Therefore, in the single-inlet multi-outlet filter, the filter housing 1 is constructed as an enveloping housing with short pipes to reduce the material used in the enveloping housing, lower its cost, and make the assembly structure more compact. This effectively reduces the machining of long oil passages and the risks associated with them. In addition, compared to existing technologies, the filter housing 1 can transport liquid through flexible pipes 13, which is not only more convenient to arrange but also helps to reduce the machining of long oil pipes in existing technologies, avoiding the machining of long oil passages and the associated risks.

[0035] The filter element 2 is used to filter the liquid entering the filter housing 1. For different liquid usage requirements, it not only has corresponding sub-zones 104, but also sets a matching number of filter layers in each sub-zone 104, ensuring that the outflowing liquid meets the corresponding cleanliness requirements. Liquid flowing out of one of the sub-zones 104 undergoes at least one layer of filtration, reducing impurities in the liquid and protecting the liquid-using equipment. Furthermore, multi-layer filtration helps reduce the adhesion of impurities to a single filter layer, reducing flow rate and pressure loss.

[0036] Before operation, select the corresponding single-inlet multi-outlet filter based on the number of liquid-using devices, meaning each liquid-using device corresponds to one sub-zone 104. During operation, liquid is introduced into the filter housing 1; any suitable existing liquid can be used. The liquid enters the main flow zone 102 and is filtered by the filter element 2, achieving one layer of filtration. The liquid continues to flow and splits into at least two paths, gradually flowing into different sub-zones 104. For each sub-zone 104, filtration is selected based on the liquid usage requirements; if filtration is required, at least one layer of filtration is performed. The filtered liquid then flows out of the filter housing 1 and is transported to the corresponding liquid-using device.

[0037] In one possible implementation, the filter element 2 includes a first filter screen 21 and a second filter screen 22. The first filter screen 21 is used to separate the main flow area 102 from the branch flow area 103. The second filter screen 22 is disposed at the inlet of a portion of the sub-area 104. Accordingly, when there are multiple second filter screens 22 disposed on multiple sub-areas 104, the pore sizes of the multiple second filter screens 22 are different.

[0038] Based on the above design, the first filter 21 is used for filtration in the main flow zone 102. It is easy to understand that the first filter 21 is preferably located at the inlet of the filter housing 1 to ensure that the liquid flowing into the filter housing 1 is filtered by at least the first filter 21. The liquid in the main flow zone 102 continues to flow to the branch flow zone 103. If the liquid meets the usage requirements after filtration by the first filter 21, then no filter is installed in one of the sub-zones 104. For the remaining sub-zones 104, a second filter 22 is installed for further filtration to ensure that the cleanliness of the liquid meets the standards.

[0039] It is worth noting that the second filter 22 can be a single-layer filter with a pore size adapted to the corresponding cleanliness requirements. Alternatively, the second filter 22 can be a multi-layer filter, with multiple filters stacked to ensure the filtration effect meets the corresponding cleanliness requirements and also to achieve multi-layer filtration, thereby reducing liquid pressure loss. Based on this, in the sub-region 104 where the second filter 22 is provided, at least one second filter 22 is provided, and when multiple second filters 22 are provided, they are stacked.

[0040] Optionally, the first filter screen 21 is a metal filter screen, and the second filter screen 22 is at least one of a paper filter screen and a fiber filter screen. Based on the above design scheme, the filter layer is designed to be a mixture of filter screens of different materials, and along the liquid flow direction, the pore size of the upstream filter screen is larger than that of the downstream filter screen, thereby intercepting impurities step by step, reducing the filtration pressure of the upstream filter screen, and minimizing the flow of impurities into the liquid-using equipment.

[0041] It is easy to understand that, based on meeting the requirements for liquid cleanliness, the first filter screen 21 and the second filter screen 22 can also be any other suitable existing filter screens.

[0042] In one possible implementation, both the first filter 21 and the second filter 22 include a frame 201 and a filter body 202. The frame 201 has at least one pore for filtration, and a filter body 202 is embedded in each pore. Based on the above design, the filter body 202 is embedded in the frame 201, and the first filter 21 and the second filter 22 are in the shape of thin plates to reduce the volume of each filter 21 and the second filter 22, making the structure of the single-inlet multi-outlet filter more compact.

[0043] Optionally, the frame 201 has multiple holes evenly distributed on the frame 201, and each hole is fitted with a filter body 202. Based on this, the filtration pressure of each filter body 202 is reduced, and the filter body 202 is protected, especially when the filter body 202 is a paper filter.

[0044] In one possible implementation, the filter housing 1 includes an upper housing 11, a lower housing 12, and pipes 13. The upper housing 11 is fixedly connected to the lower housing 12 and forms a filter space. Multiple pipes 13 are provided and are respectively connected to the upper housing 11 and the lower housing 12. Among the multiple pipes 13, one is connected to the main flow area 102, and the rest are respectively connected to the branch flow areas 103.

[0045] Based on the above design scheme, the filtration space is divided into multiple independent chambers by the partition plate 101. The independent chambers are used as the main flow area 102 and the branch flow area. The main flow area 102 is connected to the branch flow area 103, and the sub-areas 104 of the branch flow area 103 are independent of each other.

[0046] It is easy to understand that the upper shell 11 and the lower shell 12 can be constructed into any suitable shape to adapt to different usage environments. Optionally, such as Figure 1 As shown, both the upper shell 11 and the lower shell 12 are constructed as square shells. Optionally, the upper shell 11 and the lower shell 12 are connected by laser welding, and an airtightness test is required after welding to ensure good sealing performance.

[0047] Optionally, a sealant layer is also provided at the connection between the upper shell 11 and the lower shell 12. Based on this, the sealant layer further seals the connection between the upper shell 11 and the lower shell 12 to ensure airtightness. It is easy to understand that the sealant layer can be formed by curing any suitable existing sealant.

[0048] Furthermore, the filter housing 1 is connected to the outside via pipe 13 to allow for the input and output of liquid, thereby achieving liquid filtration. Preferably, as follows... Figure 2 As shown, pipe 13 is constructed as a short pipe. This avoids the long oil passages found in existing technologies.

[0049] Preferably, one of the upper shell 11 and the lower shell 12 is provided with a plurality of support columns 105, and the other is provided with a plurality of bases 106. The support columns 105 and the bases 106 correspond one-to-one, and there is a gap between the corresponding support columns 105 and the bases 106. Accordingly, the plurality of gaps are interconnected and form a filter groove for installing the filter element 2.

[0050] Based on the above design, the filter element 2 is fixed by the cooperation of the support column 105 and the base 106, ensuring that the filter element 2 will not shake or shift under the action of liquid resistance during operation, thus ensuring good filtration effect. In the case of multiple filter screens, the multiple screens are stacked to reduce space occupation, making the structure of the filter shell 1 more compact.

[0051] Preferably, the upper shell 11 and the lower shell 12 are connected by a tenon and mortise structure, and at the connection between the upper shell 11 and the lower shell 12, one of them is provided with a support platform 107 adapted to the filter element 2, and the other is provided with a pressure post 108 extending to the support platform 107. A pressing groove adapted to the filter element 2 is formed between the support platform 107 and the pressure post 108, and correspondingly, the end of the filter element 2 is inserted into the pressing groove.

[0052] Based on the above design scheme, in the mortise and tenon structure, one of the upper shell 11 and the lower shell 12 has a concave groove, and the other has a convex sealing strip. When the upper shell 11 and the lower shell 12 are connected, the sealing strip is inserted into the groove to improve the sealing performance. At the same time, the support platform 107 and the pressure column 108 cooperate with each other to fix the edge of the filter screen, so that the filter element 2 is fixed more effectively.

[0053] In one possible implementation, the pipe 13 includes an input pipe 131 connected to the lower shell 12 and at least two output pipes 132 connected to the upper shell 11. The input pipe 131 is connected to the main flow area 102, and the output pipes 132 are connected to the branch flow area 103 and are arranged in a one-to-one correspondence with the sub-area 104. One of the output pipes 132 is provided with an auxiliary pipe 133, which is connected to the outside and the opening and closing of the auxiliary pipe 133 is controlled by a sealing cap.

[0054] Based on the above design, the inlet pipe 131 and outlet pipe 132 are constructed as short pipes, which are connected to surrounding equipment via other pipes 13. Preferably, the inlet pipe 131 is located on the lower shell 12, and the outlet pipe 132 is located on the upper shell 11, so that the liquid flows gradually from bottom to top, ensuring filtration efficiency. Alternatively, the positions of the inlet pipe 131 and outlet pipe 132 can be flexibly selected according to actual usage, resulting in various layout options to adapt to different application scenarios. Furthermore, the additional pipe 133 facilitates the inspection and maintenance of the filter housing 1.

[0055] In addition, the output pipe 132 is connected to other devices through a sealing ring, which improves the sealing of the connection and prevents leakage.

[0056] This embodiment introduces a filtration system based on the single-inlet multi-outlet filter described above. The filtration system includes the single-inlet multi-outlet filter. Based on the above design, the filtration system can also include other suitable functional modules, resulting in richer functionality to meet different operational requirements and improved practicality. Furthermore, it is readily understood that these functional modules can be selected from any suitable existing equipment, offering a wide range of choices.

[0057] Example 2:

[0058] This embodiment, based on Embodiment 1, provides a single-input multi-output filter, specifically:

[0059] like Figures 1-4 As shown, the lower shell 12 is provided with an inlet pipe 131, and the upper shell 11 is provided with two outlet pipes 132. Thus, the filtration space inside the filter shell 1 is divided into a main flow zone 102 and a branch flow zone 103 from bottom to top. In the branch flow zone 103, a curved partition plate 101 is provided on the upper shell 11 to achieve separation, thereby dividing the internal space of the upper shell 11 into two independent sub-zones 104, one of which is a square zone and the other is an L-shaped zone surrounding the square zone.

[0060] In filter element 2, the first filter screen 21 is a metal filter screen, and the second filter screen 22 is a paper filter screen, with the size of the second filter screen 22 adapted to the square area. Thus, they are stacked in the order of first filter screen 21 below and second filter screen 22 above, with the second filter screen 22 facing and covering the square area. Based on this, when liquid flows into the main flow area 102 through the inlet pipe 131, the liquid level rises and is filtered by the metal filter screen. If the liquid is in the square area, it is filtered by the paper filter screen and flows out. If the liquid is in the L-shaped area, the liquid does not need further filtration and flows out.

[0061] Based on the above design scheme, this embodiment provides a single-inlet, dual-outlet, single-inlet, multi-outlet filter. It is easy to understand that, depending on actual usage requirements, the number of the second filter 22, sub-section 104, and output pipe 132 can be appropriately increased to increase the number of pipelines for external liquid delivery.

[0062] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A single-inlet, multi-outlet filter, characterized in that, It includes a filter housing (1) and a filter element (2); The filter housing (1) has a filter space, and the filter space is provided with a partition plate (101) and the filter element (2). The filter element (2) divides the filter space into a main flow area (102) and a tributary area (103). The partition plate (101) is located in the tributary area (103) and divides the tributary area (103) into at least two non-connected sub-areas (104). The filter element (2) is disposed inside the filter housing (1) and is used for at least one layer of filtration so that each sub-zone (104) flows into the liquid filtered through different layers.

2. The single-inlet multi-outlet filter according to claim 1, characterized in that, The filter element (2) includes a first filter screen (21) and a second filter screen (22). The first filter screen (21) is used to separate the main flow area (102) and the tributary area (103). The second filter screen (22) is set at the inlet of a portion of the sub-area (104). Accordingly, when there are multiple second filter screens (22) and they are respectively set on multiple sub-areas (104), the pore diameters of the multiple second filter screens (22) are different.

3. The single-inlet multi-outlet filter according to claim 2, characterized in that, In a sub-region (104) provided with a second filter (22), at least one second filter (22) is provided, and when there are multiple second filters (22), the multiple second filters (22) are stacked.

4. The single-inlet multi-outlet filter according to claim 3, characterized in that, The first filter screen (21) is a metal filter screen, and the second filter screen (22) is at least one of a paper filter screen and a fiber filter screen.

5. The single-inlet multi-outlet filter according to claim 4, characterized in that, The first filter (21) and the second filter (22) both include a frame (201) and a filter body (202). The frame (201) is provided with at least one hole for filtering, and a filter body (202) is embedded in each hole.

6. The single-inlet multi-outlet filter according to any one of claims 1-5, characterized in that, The filter housing (1) includes an upper shell (11), a lower shell (12) and pipes (13). The upper shell (11) is fixedly connected to the lower shell (12) and forms a filter space. There are multiple pipes (13) that are respectively connected to the upper shell (11) and the lower shell (12). Among the multiple pipes (13), one is connected to the main stream area (102), and the rest are respectively connected to the tributary areas (103).

7. The single-inlet multi-outlet filter according to claim 6, characterized in that, One of the upper shell (11) and the lower shell (12) is provided with multiple support columns (105), and the other is provided with multiple bases (106). The support columns (105) and the bases (106) correspond one to one, and there is a gap between the corresponding support column (105) and the base (106). Accordingly, the multiple gaps are interconnected and form a filter groove for installing the filter element (2).

8. The single-inlet multi-outlet filter according to claim 7, characterized in that, The upper shell (11) and the lower shell (12) are connected by a mortise and tenon structure. At the connection between the upper shell (11) and the lower shell (12), one of them is provided with a support platform (107) adapted to the filter element (2), and the other is provided with a pressure column (108) extending towards the support platform (107). A pressing groove adapted to the filter element (2) is formed between the support platform (107) and the pressure column (108). Correspondingly, the end of the filter element (2) is inserted into the pressing groove.

9. The single-inlet multi-outlet filter according to claim 6, characterized in that, The pipe (13) includes an input pipe (131) that connects to the lower shell (12) and at least two output pipes (132) that connect to the upper shell (11). The input pipe (131) connects to the main stream area (102), and the output pipes (132) connect to the branch stream area (103) and are set one-to-one with the sub-area (104). One of the output pipes (132) is provided with an auxiliary pipe (133). The auxiliary pipe (133) connects to the outside and the opening and closing of the auxiliary pipe (133) is controlled by a sealing cap.

10. A filtration system, characterized in that, The filter includes any one of claims 1-9, which is a single-inlet, multi-outlet filter.