Filtering device and engine assembly having the same

Abstract

The application discloses a filtering device and an engine assembly with the same, and relates to the technical field of automobile parts / industrial filtering. The filtering device comprises a base, a filtering assembly and a bypass valve assembly. The bypass valve assembly comprises a valve seat and a valve core. The valve seat is provided with a valve seat disc and a filter core seat. The valve seat is provided with a bypass oil channel and an oil outlet channel. The filtering assembly comprises a shell, a filter core and a sealing element. The filtering assembly and the base are matched through the shell to form a filtering space. The filter core is installed on the filter core seat. The base is provided with an oil inlet and an oil outlet. The axis of the valve core of the bypass valve assembly does not coincide with the axis of the filter core. The application can solve the problem that the bypass valve and the filter core need to be replaced together during maintenance, and the filter core can be replaced alone, so that the bypass valve can be reused, the replacement of parts can be reduced, and resources and costs can be saved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of automobile parts / industrial filtration, and particularly relates to a filtering device and an engine assembly with the same. BACKGROUND

[0002] In recent years, based on the implementation of the environmental protection concept, more and more automobile parts adopt environmental protection materials or are designed to be environmentally friendly, so as to replace fewer parts in after-sales maintenance, save more materials, and be more convenient for maintenance and repair.

[0003] In the normal working process of an engine, various parts in the engine need to be lubricated by oil to reduce wear and tear and prolong the service life. An oil filter can be used to filter or remove impurities in the oil to ensure clean oil supply and protect the engine. A traditional spin-on oil filter generally includes a metal shell, a filter element / filter medium, a bypass valve and a check valve, etc. After the oil is filtered by the filter element, the oil enters the engine, which can ensure good lubrication effect and reduce the wear of the engine.

[0004] In the oil filter, the bypass valve can be used to ensure oil supply during cold start or filter element blockage. The bypass valve does not pass oil under normal circumstances and is in a closed state. The bypass valve is opened only in the following situations. For example, during cold start at low temperature, the oil is relatively viscous, which causes excessive oil flow resistance and insufficient oil supply of the engine. At this time, the bypass valve is opened due to excessive oil pressure, so that the oil bypasses (does not pass through) the filter element and directly flows into the engine, ensuring the normal operation of the lubrication system. Or, when the filter element reaches the limit of service life and is not replaced in time, the filter element is blocked, which increases the oil flow resistance of the lubrication system. At this time, the bypass valve is opened due to excessive oil pressure, so that the oil bypasses the filter element and directly enters the engine, ensuring the normal operation of the lubrication system and reducing the wear of the engine.

[0005] In the traditional oil filter, the bypass valve is installed at the upper end of the filter element, and the bypass valve and the filter element are integrated. Therefore, when the filter element is replaced or maintained after sale, the bypass valve and the filter element need to be replaced together, which not only wastes resources and is not environmentally friendly, but also increases the cost of after-sales maintenance. SUMMARY

[0006] The application aims to at least partly solve one of the above technical problems. To this end, the application provides a filtering device and an engine assembly with the same, which can replace the filter element alone and reuse the bypass valve, thereby reducing the replacement of parts, saving resources and reducing costs.

[0007] To solve the above technical problems, the application is implemented as follows:

[0008] According to an aspect of the present application, a filter device is provided, comprising a base, a filter assembly and a bypass valve assembly; the bypass valve assembly comprises a valve seat and a valve core, the valve seat is provided with a valve seat disc and a filter core seat, the valve seat is provided with a bypass oil passage and an oil outlet passage; the filter assembly comprises a shell, a filter core and a sealing element; the filter assembly forms a filter space with the base through the shell, the filter core is installed in the filter core seat; the base is provided with an oil inlet and an oil outlet; the axis of the valve core of the bypass valve assembly is not coincident with the axis of the filter core.

[0009] In addition, the filter device according to the present application can also have the following additional technical features:

[0010] In some embodiments, the axis of the valve core of the bypass valve assembly is parallel to the axis of the filter core.

[0011] In some embodiments, the bypass valve assembly further comprises a valve cover and an elastic element; the elastic element is arranged between the valve cover and the valve core, and the elastic element drives the valve core to keep the bypass oil passage of the bypass valve assembly always closed.

[0012] In some embodiments, one end of the valve core is provided with a plurality of guide ribs. The guide ribs can be directly inserted into the bypass oil passage, and further, the guide ribs and the bypass oil passage are in clearance fit, so as to ensure that the valve core will not be deflected too much when moving between opening and closing, so as to cause the sealing failure of the valve core.

[0013] In some embodiments, the valve seat is provided with a support arm, the support arm encloses an accommodation space, and the valve core, the elastic element and the valve cover are arranged in the accommodation space.

[0014] In some embodiments, the valve seat is divided into upper and lower sides by the valve seat disc, the bypass oil passage inlet and the oil outlet passage outlet are located on one side of the valve seat, and the support arm, the valve core, the elastic element and the valve cover are located on the other side of the valve seat. That is, if the plane where the valve seat disc is located is taken as a boundary, the bypass oil passage inlet and the oil outlet passage outlet are on the same side of the valve seat, and the support arm, the valve core, the elastic element and the valve cover are on the same side of the valve seat. It should be noted that taking the valve seat disc as a boundary does not mean that the valve seat disc separates the valve seat into two parts that are not connected to each other.

[0015] In some embodiments, the support arm is provided with at least two clamping grooves, the edge of the valve cover is provided with a clamping convex, and the clamping convex is in clamping fit with the clamping grooves. The elastic element is connected between the valve cover and the valve core, and the elastic element can drive the valve core to have a tendency to move from the second position to the first position.

[0016] In some embodiments, the valve seat is provided with a plurality of elastic clamping elements, and the plurality of elastic clamping elements are arranged circumferentially around the oil outlet passage outlet of the valve seat. In this way, after the valve seat is installed on the base, the valve seat can be directly clamped and fixed on the base.

[0017] In some embodiments, the first end of the bypass oil passage is provided with an arc-shaped concave surface facing one side of the valve core, and the valve core is provided with an arc-shaped convex surface; when the valve core is in the normally closed position, the arc-shaped convex surface is tightly matched with the arc-shaped concave surface.

[0018] In some embodiments, the outer wall of the valve seat is provided with a groove accommodating the first sealing ring, and the first sealing ring prevents unfiltered oil from entering the oil outlet channel when the valve seat is installed on the base.

[0019] In some embodiments, the filter element is provided with a first clamping member, and the shell is provided with a second clamping member clamped with the first clamping member. The first clamping member and the second clamping member can clampingly connect the shell and the filter element.

[0020] According to another aspect of the present application, an engine assembly is provided, comprising an engine body and the aforementioned filter device; the engine body of the engine assembly is connected with the filter device as aforementioned through the base.

[0021] In the present application, when the filter device is installed on the engine for the first time, the filter element and the shell of the filter assembly are clamped, at this time, the filter element and the shell are assembled together. The bypass valve assembly is inserted into the filter element, so that the inner surface of the inner cylinder of the filter element is matched with the filter element seat, and then the combination is connected to the base through the connecting part of the shell, which is usually in the form of threads. When the filter element needs to be replaced, the shell is unscrewed, since the filter element assembly is clamped on the shell through the clamping member, and the bypass valve assembly has been clamped and fixed on the base through the elastic clamping member, at this time, the components to be removed are only the shell and the filter element assembly, and the filter element assembly can be removed and replaced.

[0022] By adopting the technical scheme, the present application has at least the following beneficial effects compared with the prior art:

[0023] The filter device provided by the present application comprises a base, a filter assembly and a bypass valve assembly, the bypass valve assembly is integrated in the base, the valve seat of the bypass valve assembly has a bypass oil passage and an oil outlet channel, the oil outlet channel is not coincident with the axis of the bypass valve, the axis of the valve core of the bypass valve assembly is not coincident with the axis of the filter element, the filter assembly forms a filter space through the cooperation of the shell and the base, and the filter element is installed on the filter element seat on the valve seat. Therefore, through the above arrangement, by integrating the bypass valve in the base, when maintenance is performed or the filter element needs to be replaced due to serious blockage, etc., the shell and the filter element assembly of the filter assembly can be directly removed, only the filter element assembly needs to be replaced, the bypass valve does not need to be replaced, the bypass valve can continue to be installed on the base, and a new filter element can be installed on the original bypass valve and the base, which is simple to operate, can avoid the waste caused by replacing the bypass valve together with the filter element, reduces the replacement of parts, saves resources, saves costs and is more environmentally friendly.

[0024] Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will become apparent to those skilled in the art upon examination of the following and / or can be learned by practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 Structure schematic diagram of the filter device disclosed by the embodiment of the application;

[0026] Figure 2 Structure schematic diagram of the filter device disclosed by the embodiment of the application;

[0027] Figure 3 Structure schematic diagram of the filter device disclosed by the embodiment of the application;

[0028] Figure 4 Structure schematic diagram of the bypass valve assembly disclosed by the embodiment of the application;

[0029] Figure 5 Exploded structure schematic diagram of the bypass valve assembly disclosed by the embodiment of the application;

[0030] Figure 6 Structure schematic diagram of the valve core disclosed by the embodiment of the application;

[0031] Figure 7 Structure schematic diagram of the valve core disclosed by the embodiment of the application;

[0032] Figure 8 Structure schematic diagram of the valve seat disclosed by the embodiment of the application.

[0033] BRIEF DESCRIPTION OF DRAWINGS

[0034] 100 - bypass valve assembly;

[0035] 110 - valve seat; 111 - bypass oil passage; 1111 - first end; 1112 - second end; 1113 - arc-shaped concave surface; 112 - oil outlet passage; 113 - support arm; 1131 - clamping groove; 114 - first annular groove; 115 - second annular groove; 116 - first sealing ring;

[0036] 120 - valve core; 121 - arc-shaped convex surface; 122 - guide rib; 123 - first convex edge; 1231 - first chamfer structure; 1232 - groove;

[0037] 130 - elastic member; 140 - valve cover; 141 - clamping convex; 142 - second convex edge; 1421 - second chamfer structure;

[0038] 150 - valve seat disc;

[0039] 160 - filter core seat;

[0040] 200 - filter assembly; 210 - housing; 220 - filter element; 230 - bracket; 240 - second sealing ring;

[0041] 300 - base; 310 - oil outlet; 320 - oil inlet; 330 - mounting through hole. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0043] The terms "first", "second", and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are usually a category, not limited to the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / ", generally represents a "or" relationship between the front and rear associated objects.

[0044] The embodiments of the present application will be described in detail below with reference to the drawings and specific embodiments and their application scenarios. The description of the specific technical solutions is as follows.

[0045] Please refer to Figures 1 to 8 As shown in the drawings, the embodiments provide a filter device, which can be applied in an engine assembly for filtering oil entering the engine to ensure the cleanliness of the supplied oil. In addition, the filter device can also be used in other equipment, and the specific use scenarios and working conditions of the filter device in the embodiments of the present application are not specifically limited.

[0046] In some embodiments, an engine assembly is provided, which includes an engine body (not shown) and a base 300, the engine body being connected with the base 300; the engine assembly further includes the provided filter device, and the engine body of the engine assembly is connected with the filter device through the base 300. For example, the bypass valve assembly 100 in the filter device is connected with the base 300, that is, the bypass valve assembly 100 is integrated in the base 300.

[0047] It should be noted that the core of the engine assembly is to contain the filtering device provided in the embodiments of the present application; the specific structure or connection mode or working principle of the engine body or other structures contained in the engine assembly can refer to the prior art, and the embodiments are not limited thereto, and will not be described in detail herein.

[0048] Specifically, the filtering device comprises a base 300, a filtering assembly 200 and a bypass valve assembly 100; the filtering assembly 200 can be used to remove dust, various particulate matters and other impurities in the engine oil to protect the engine; the bypass valve assembly 100 can be opened in some special situations such as low-temperature cold start or filter element blockage, and can be used to ensure oil supply in the case of low-temperature cold start or filter element blockage; the base 300 can be used to connect with the engine body.

[0049] In the embodiments, the bypass valve assembly 100 is installed on the base 300, that is, the bypass valve assembly 100 is integrated on the base 300. The bypass valve assembly 100 comprises a valve seat 110 and a valve core 120, the valve seat 110 is provided with a valve seat disc 150 and a filter element seat 160, the valve seat 110 has a bypass oil passage 111 and an oil outlet passage 112, that is, the bypass oil passage 111 and the oil outlet passage 112 are arranged in the valve seat 110, and the oil outlet passage 112 does not coincide with the axis of the bypass valve.

[0050] The filtering assembly 200 comprises a housing 210, a filter element 220 and a sealing member; the filtering assembly 200 forms a filtering space in cooperation with the base 300 through the housing 210, and the filter element 220 is installed on the filter element seat 160; the base 300 is provided with an oil inlet 320 and an oil outlet 310; the axis of the valve core 120 of the bypass valve assembly 100 does not coincide with the axis of the filter element 220.

[0051] Optionally, the valve core 120 is arranged on the valve seat 110, and the valve core 120 has a relative position transformation with respect to the valve seat 110, and the valve core 120 can have an open or closed state; the valve seat 110 can be detachably connected with the filtering assembly 200, such as that the filter element 220 in the filtering assembly 200 is detachably connected with the filter element seat 160 of the valve seat 110; the filtering assembly 200 can also be detachably connected with the base 300, such as that the housing 210 in the filtering assembly 200 is detachably connected with the base 300, and a sealing member is arranged between the housing 210 and the base 300. By adopting the detachable connection between the filtering assembly 200 and the valve seat or the base, when maintenance or replacement of the filter element is needed, the connection relationship between the valve seat 110 and the filtering assembly 200 can be released, the connection relationship between the filtering assembly 200 and the base 300 can be released, and the filtering assembly 200 or the housing 210 and the filter element 220 in the filtering assembly 200 can be taken out separately, so that the bypass valve assembly 100 and the filtering assembly 200 are not replaced together.

[0052] Therefore, when the provided filtering device is installed on the engine for the first time, the filter element 220 and the shell 210 in the filtering assembly 200 can be connected first, such as by snap connection, at which time the filter element 220 and the shell 210 are assembled together to form the filtering assembly 200. Then, the bypass valve assembly 100 can be inserted into the filter element 220, so that the inner cylindrical surface of the filter element 220 cooperates with the filter element seat 160, that is, the filter element 220 and the filter element seat 160 are detachably connected, so that the filtering assembly 200 and the bypass valve assembly 100 form an assembly. Then, the assembly is connected to the base 300 through the connecting portion of the shell 210, which can be connected by screwing, but is not limited thereto, and can also be connected by clamping or other detachable connection. The valve seat 110 in the bypass valve assembly 100 is detachably connected to the base 300, such as being fixed to the base 300 by elastic clamps. When maintenance is performed or the filter element needs to be replaced due to severe clogging, the shell 210 can be unscrewed, that is, the shell 210 is separated from the base 300. Since the filter element 220 is clamped to the shell 210 by the clamping member, the filter element 220 and the shell 210 are separated from the base 300 together, and the bypass valve assembly 100 is clamped and fixed to the base 300 by the elastic clamps. Therefore, the components removed at this time are only the shell 210 and the filter element assembly, and the filtering assembly 200 can be removed from the base 300 for replacement, without the bypass valve assembly being removed and replaced.

[0053] In this way, by integrating the bypass valve assembly in the base 300, when maintenance is performed or the filter element needs to be replaced due to severe clogging, the shell 210 and the filter element assembly in the filtering assembly 200 can be directly removed, and only the filtering assembly 200 needs to be replaced, without the bypass valve needing to be replaced. The bypass valve can continue to be installed on the base 300, and a new filter element 220 can be installed on the original bypass valve and base 300, which is simple to operate and can avoid waste caused by replacing the bypass valve together with the filter element, reduce the replacement of parts, save resources, save costs, and be more environmentally friendly.

[0054] In this embodiment, the axis of the valve core 120 of the bypass valve assembly does not coincide with the axis of the filter element 220, and further, the axis of the valve core 120 of the bypass valve assembly is parallel to the axis of the filter element 220. The valve core 120 can be arranged near the circumferential edge of the valve seat 110, that is, the valve core 120 is not arranged in the middle of the valve seat 110, so that the axis of the bypass valve does not coincide with the axis of the oil outlet passage 112, or so that the axis of the valve core 120 does not coincide with the axis of the filter element 220. In this way, a larger oil outlet passage can be left, that is, the oil outlet passage 112 can have a larger range, and the oil outlet efficiency can be improved.

[0055] Therefore, through the above arrangement, the structure is reasonable, not only convenient to install and disassemble, conducive to the connection of the bypass valve assembly and the filter assembly 200, but also can increase the range of the oil outlet channel and improve the oil outlet efficiency.

[0056] In the embodiment, the valve seat 110 has an oil outlet channel 112 and a bypass oil channel 111. The oil outlet channel 112 is connected to the filter assembly 200. The bypass oil channel 111 has a first end 1111 and a second end 1112. The first end 1111 of the bypass oil channel 111 is arranged adjacent to the oil outlet channel 112, i.e., the first end 1111 of the bypass oil channel 111 is arranged on the side close to the oil outlet channel 112. The second end 1112 of the bypass oil channel 111 is adapted for oil inlet. The second end 1112 of the bypass oil channel 111 can be provided with an oil inlet port 320. The first end 1111 of the bypass oil channel 111 can have an open and closed state. When the first end 1111 of the bypass oil channel 111 is closed, the bypass oil channel 111 is disconnected from the oil outlet channel 112. When the first end 1111 of the bypass oil channel 111 is open, the bypass oil channel 111 is connected to the oil outlet channel 112.

[0057] As shown in Figure 2 and Figure 3 The valve core 120 is movably arranged in the valve seat 110. The valve core 120 has a position change relative to the valve seat 110. The valve core 120 can have an open or closed state. For example, the valve core 120 has a first position and a second position relative to the valve seat 110. When the valve core 120 is in the first position, the first end 1111 of the bypass oil channel 111 is closed, the bypass oil channel 111 is disconnected from the oil outlet channel 112, and the oil outlet channel 112 is connected to the filter assembly 200. In this state, i.e., the bypass oil channel 111 is in a closed state, the oil filtered by the filter assembly 200 can enter the engine through the oil outlet channel 112. When the valve core 120 is in the second position, the first end 1111 of the bypass oil channel 111 is open, the bypass oil channel 111 is connected to the oil outlet channel 112, and the oil enters the bypass oil channel 111 through the second end 1112 of the bypass oil channel 111, then enters the oil outlet channel 112 from the first end 1111 of the bypass oil channel 111, and then enters the engine from the oil outlet channel 112. In this state, i.e., the bypass oil channel 111 is in an open state, the oil does not pass through the filter assembly 200, but enters the oil outlet channel 112 from the bypass oil channel 111 and then enters the engine.

[0058] It can be understood that the relative position of the valve core 120 and the valve seat 110 changes, the opening and closing state of the bypass oil passage 111 also changes, when the bypass oil passage 111 or the valve core 120 is in the closed state, the first end 1111 of the bypass oil passage 111 is closed, for example, the first end 1111 of the bypass oil passage 111 is blocked by the valve core 120 and the oil outlet passage 112 is communicated; when the bypass oil passage 111 is in the open state, the first end 1111 of the bypass oil passage 111 is open, for example, the position of the valve core 120 is adjusted, the valve core 120 is moved, the valve core 120 is opened, and the first end 1111 of the bypass oil passage 111 is communicated with the oil outlet passage 112.

[0059] Optionally, the valve seat 110 in the bypass valve assembly 100 in the filter device is installed in the base 300, for example, the valve seat 110 and the base 300 are connected in a detachable manner.

[0060] The filter device is provided, the bypass valve assembly 100 is detachably connected with the filter element 220 of the filter assembly 200, such as inserting the bypass valve assembly 100 into the filter element 220, and the housing 210 of the filter assembly 200 is screwed to the base 300, and the valve seat 110 of the bypass valve assembly 100 is installed in the base 300. Further, in the bypass valve assembly 100, the valve core 120 is movably arranged in the valve seat 110, and the valve seat 110 is provided with an oil outlet channel 112 and a bypass oil channel 111, the bypass oil channel 111 has an opening and closing state, the oil outlet channel 112 is communicated with the filter element 220 of the filter assembly 200, and the oil outlet channel 112 can be used as a main flow channel of the oil. Thus, in some cases such as in normal conditions, the valve core 120 is in the first position relative to the valve seat 110, the valve core 120 is in the closed state, that is, the bypass oil channel 111 is in the closed state, the bypass oil channel 111 is separated from the oil outlet channel 112, that is, the first end 1111 of the bypass oil channel 111 is blocked, so that the oil can pass through the filter element 220 of the filter assembly 200, then pass through the oil outlet channel 112 and enter the engine. In other cases such as low-temperature cold start or filter element blockage in the filter assembly 200, the valve core 120 is in the second position relative to the valve seat 110, the valve core 120 is in the open state, the bypass oil channel 111 is communicated with the oil outlet channel 112, that is, the first end 1111 of the bypass oil channel 111 is opened to communicate with the oil outlet channel 112, so that the oil passes through the bypass oil channel 111 and directly enters the oil outlet channel 112 without passing through the filter element 220 of the filter assembly 200, and then enters the engine. Thus, based on the design concept of environmental protection oil filter, the filter device provides an integrated oil outlet channel type bypass valve, so that in the case of maintenance or replacement of the filter element due to severe blockage, the filter assembly 200 or the housing 210 and the filter element 220 in the filter assembly 200 can be directly removed, and only the filter element 220 can be replaced, and the bypass valve assembly 100 does not need to be replaced, and the bypass valve assembly 100 is retained on the base 300, and a new filter element is installed on the original bypass valve assembly 100, which can avoid the waste caused by replacing the bypass valve together with the filter element, and reduces the replacement of parts.

[0061] As shown in Figure 1 some embodiments, the base 300 is provided with a mounting hole 330, and at least part of the valve seat 110 is mounted in the mounting hole 330; one end of the mounting hole 330 is provided with an oil outlet 310, and the oil outlet 310 is communicated with the oil outlet channel 112.

[0062] Optionally, the oil inlet 320 of the base 300 can be in communication with the second end 1112 of the bypass oil passage 111, and the oil inlet 320 can also be in communication with the filter assembly 200. For example, the middle portion of the base 300 is provided with a mounting hole 330, which can be used to mount the valve seat 110, and the oil outlet passage 112 of the valve seat 110 is located in the mounting hole 330, and the bottom end of the mounting hole 330 can be provided with an oil outlet 310; the left side or the right side of the base 300 can be provided with an oil inlet 320, which is in communication with the oil inlet cavity in the base 300, and is used for the oil to enter the filter device.

[0063] The valve seat 110 is mounted in the mounting hole 330 of the base 300, for example, the lower middle portion of the valve seat 110 is arranged in the mounting hole 330, and the upper portion of the valve seat 110 extends upwardly to be connected with the filter assembly 200, and at least part of the oil outlet passage 112 of the valve seat 110 is located in the mounting hole 330, and the outlet end of the oil outlet passage 112 is in communication with the oil outlet 310 of the base 300. By mounting the valve seat 110 of the bypass valve assembly 100 on the base 300, an integrated oil outlet passage type bypass valve is designed. In normal operation, the oil enters through the oil inlet 320 of the base 300, and then enters the oil outlet passage 112 of the bypass valve assembly 100 after being filtered by the filter assembly 200, and then flows out from the oil outlet passage 112 and the oil outlet 310 of the base 300 and enters the engine. In the case of low-temperature cold start or blockage of the filter element in the filter assembly 200, the oil enters through the oil inlet 320 of the base 300, and then enters the oil outlet passage 112 through the bypass oil passage 111 of the bypass valve assembly 100, that is, the oil enters the oil outlet passage 112 directly without passing through the filter assembly 200 after passing through the bypass oil passage 111, and then enters the engine through the oil outlet 310 of the base 300. During maintenance, the bypass valve assembly 100 can be retained on the base 300, and the bypass valve assembly 100 does not need to be replaced together with the filter element.

[0064] Optionally, the valve seat 110 can be detachably mounted in the mounting hole 330 of the base 300, for example, the valve seat 110 and the mounting hole 330 are connected in a clamping manner. In some embodiments, the valve seat 110 is provided with a plurality of elastic clamping members, and the plurality of elastic clamping members are arranged circumferentially around the outlet of the oil outlet passage 112 of the valve seat 110. In this way, after the valve seat 110 is mounted in the mounting hole 330 of the base, the valve seat 110 can be directly clamped and fixed on the base. The clamping manner is simple in structure, convenient to install and dismount, reliable in connection structure, and convenient to maintain.

[0065] Of course, in other embodiments, the valve seat 110 and the mounting hole 330 of the base 300 can also be connected in a threaded connection or other detachable manner, which is not limited in the present embodiment.

[0066] Continue to refer to Figure 1 As shown, in some embodiments, the filter assembly 200 may further include a support 230; the housing 210 of the filter assembly 200 has an inner cavity, which is connected to the oil inlet 320 of the base 300. The support 230 and the filter element 220 are disposed in the inner cavity, and the filter element 220 is sleeved on the support 230; and the internal space of the filter element 220 is connected to the oil outlet channel 112. The support 230 is a filter element support, which can be used to fix the filter element 220. The filter element 220 is a filter element that can be used to remove various impurities or dirt. Optionally, the support 230 and the filter element 220 can be an integral structure, that is, the support 230 is manufactured together with the filter element 220. Alternatively, in other cases, the support 230 and the filter element 220 can also be a separate structure, which can be detached or fixedly connected together.

[0067] The aforementioned housing 210 and base 300 can be connected in a detachable manner using threads or other methods. The inner cavity of housing 210 is connected to the oil inlet 320 of base 300. In this way, the engine oil to be filtered enters from the oil inlet 320 of base 300, passes through the oil inlet chamber inside base 300, and then diffuses into the inner cavity of housing 210, where it is filtered by the filter element 220. For example, multiple inlets can be arranged circumferentially in the inner cavity of housing 210 to disperse the engine oil to be filtered into the inner cavity, allowing the engine oil to enter from multiple circumferential positions within the inner cavity. This can improve the dispersion efficiency and uniformity of the engine oil in the inlet channel of filter assembly 200, thus contributing to improved filtration efficiency.

[0068] Optionally, the filter element 220 is provided with a first snap-fit ​​member, and the housing 210 is provided with a second snap-fit ​​member that snaps into the first snap-fit ​​member. The first and second snap-fit ​​members enable a snap-fit ​​connection between the housing 210 and the filter element 220. This results in a simple structure, convenient installation and disassembly, reliable connection, and easy maintenance. Of course, in other embodiments, the housing 210 and the filter element 220 can also be connected using other detachable methods such as threaded connections.

[0069] like Figures 2 to 5 As shown, in some embodiments, the bypass valve assembly 100 further includes a valve cover 140 and an elastic element 130; the valve cover 140 is connected to the valve seat 110, and the elastic element 130 is disposed between the valve cover 140 and the valve core 120. The elastic element 130 can drive the valve core 120 to keep the bypass oil passage of the bypass valve assembly normally closed, and the elastic element 130 can drive the valve core 120 to have a tendency to move from the second position to the first position.

[0070] The bypass valve assembly 100 is provided with the valve core 120 connected in the valve seat 110 and movably arranged along the valve seat 110. In order to make the valve core 120 movable, the elastic member 130 capable of providing elastic force is arranged, and the valve cover 140 capable of compressing one end of the elastic member 130 is arranged. For example, the elastic member 130 and the valve core 120 are arranged in the valve seat 110, the elastic member 130 is sleeved outside the valve core 120, and one end, for example, the top end of the elastic member 130 abuts against the valve cover 140. The elastic member 130 can drive the valve core 120 to keep the bypass valve closed.

[0071] Therefore, in normal working, the valve core 120 is in sealing connection with the valve seat 110 under the pressure of the elastic member 130, that is, the sealing between the valve core 120 and the valve seat 110 can block the communication between the first end 1111 of the bypass oil passage 111 and the oil outlet passage 112. At this time, the valve core 120 and the bypass oil passage 111 are in a closed state, and the oil outlet passage 112 of the bypass valve assembly 100 serves as a main oil outlet passage. That is, when the filter element 220 normally filters oil, the elastic member 130 is elastically abutted between the valve core 120 and the valve seat 110, the upper end of the valve core 120 is compressed by the elastic member 130, and the lower end of the valve core 120 is sealed with the valve seat 110. At this time, the valve core 120 is in a first position, the sealing between the valve core 120 and the valve seat 110 blocks the communication between the first end 1111 of the bypass oil passage 111 and the oil outlet passage 112, and the bypass oil passage 111 is in a closed state. Optionally, in this state, the upper end of the elastic member 130 is compressed by the valve cover 140 and clamped in the clamping groove 1131 of the valve seat 110.

[0072] When the filter device is blocked or the filter element is blocked, or when the engine is cold started at low temperature, the oil pressure in the filter chamber will increase, the oil pressure in the oil inlet chamber will increase, and the oil pressure in the oil outlet chamber will increase. When the oil pressure increases to a certain value, the valve core 120 is opened upward under the pressure difference, for example, the valve core 120 moves upward, the lower end of the valve core 120 is unsealed with the valve seat 110, a gap is formed between the lower end of the valve core 120 and the valve seat 110, the valve core 120 is opened, and the first end 1111 of the bypass oil passage 111 is opened. The bypass oil passage 111 is in an open state, and the first end 1111 of the bypass oil passage 111 is in communication with the oil outlet passage 112. Thus, the oil enters from the second end 1112 of the bypass oil passage 111, flows into the oil outlet passage 112 through the first end 1111 of the bypass oil passage 111, and directly flows into the engine without passing through the filter assembly 200, thereby reducing the oil pressure in the filter chamber. At this time, the oil does not pass through the filter device for filtration, and the filter device does not have the oil filtration function, but can ensure that the oil flows out of the filter device smoothly and ensure normal lubrication.

[0073] In some embodiments, the valve seat 110 is provided with a plurality of support arms 113, which enclose a receiving space, and the valve core 120, the elastic member 130 and the valve cover 140 are arranged in the receiving space.

[0074] In some embodiments, the valve seat 110 is divided into upper and lower sides by the valve seat disc 150, and the bypass oil passage 111 inlet and the oil outlet passage 112 outlet are located on one side of the valve seat 110, and the support arms 113, the valve core 120, the elastic member 130 and the valve cover 140 are located on the other side of the valve seat 110. That is, with the plane of the valve seat disc 150 as the boundary, the bypass oil passage 111 inlet and the oil outlet passage 112 outlet are on the same side of the valve seat 110, for example, on the lower side of the valve seat 110; the support arms 113, the valve core 120, the elastic member 130 and the valve cover 140 are on the same side of the valve seat 110, for example, on the upper side of the valve seat 110. It should be understood that taking the valve seat disc 150 as the boundary does not mean that the valve seat disc 150 separates the valve seat into two parts that are not connected to each other.

[0075] Further, in some embodiments, at least part of the plurality of support arms 113 is provided with a clamping groove 1131, for example, at least two clamping grooves 1131 are arranged in the support arms 113, and the edge of the valve cover 140 is provided with a clamping protrusion 141, which is clamped and matched with the clamping groove 1131.

[0076] Optionally, the valve seat 110 can be provided with two support arms 113, which are symmetrically arranged and enclose a receiving space. At least part of the support arms 113, for example, the upper end of the support arms 113, can be provided with a clamping groove 1131, and the clamping grooves 1131 in the two support arms 113 are correspondingly arranged. The elastic member 130 and the valve core 120 can be arranged in the receiving space, and the valve cover 140 can also be located in the receiving space, and the valve cover 140 is connected with the clamping groove 1131 by clamping. For example, the edge of the valve cover 140 can be provided with a clamping protrusion 141, that is, a clamping protrusion is arranged, and the valve cover 140 is clamped and matched with the clamping groove 1131 of the support arm 113 of the valve seat 110 to be connected together.

[0077] Optionally, the above-mentioned clamping groove 1131 can be a rectangular or square clamping hole. The upper end of the elastic member 130 can be pressed and clamped in the clamping groove 1131 of the support arm 113 of the valve seat 110 by the valve cover 140. Of course, in other embodiments, the clamping groove 1131 can also adopt other shapes and structures, which are not limited in the present embodiment.

[0078] In order to effectively elastically stop the elastic member 130, and enhance the working reliability of the bypass valve, the embodiment is provided with a clamping groove 1131 on the supporting arm 113 of the valve seat 110, and the clamping convex 141 of the valve cover 140 is clamped and matched with the clamping groove 1131, so as to press the upper end of the elastic member 130. The clamping and matching is reliable, the structure is simple, and the installation and dismounting are convenient, and the elastic member has good elasticity and good working reliability.

[0079] As shown in Figures 6 to 8 some embodiments, the first end 1111 of the bypass oil channel 111 is provided with an arc-shaped concave surface 1113, and the valve core 120 is provided with an arc-shaped convex surface 121; in the case that the valve core 120 is in the normally closed position, such as in the case that the valve core 120 is in the first position, the arc-shaped convex surface 121 is tightly matched with the arc-shaped concave surface 1113.

[0080] In some embodiments, the arc-shaped convex surface 121 and the arc-shaped concave surface 1113 are both spherical surfaces or conical surfaces. For example, the arc-shaped convex surface 121 can be a convex spherical surface, and the arc-shaped concave surface 1113 can be a concave spherical surface matched with the convex spherical surface; or the arc-shaped convex surface 121 can be a convex conical surface, and the arc-shaped concave surface 1113 can be a concave conical surface matched with the convex conical surface.

[0081] According to the embodiment, the first end 1111 of the bypass oil channel 111 can be opened or closed by adjusting the position of the valve core 120 relative to the valve seat 110, that is, the bypass oil channel 111 is connected or blocked with the oil outlet channel 112. The bypass oil channel 111 of the valve seat 110 and the valve core 120 have a matching part, at least part of the valve core 120, such as the middle and lower part of the valve core 120, is provided with an arc-shaped convex surface 121, which can also be called a convex sealing surface, and correspondingly, the position of the bypass oil channel 111 of the valve seat 110 for matching with the valve core 120 is provided with an arc-shaped concave surface 1113, which can also be called a concave sealing surface. In the case that the valve core 120 is in the normally closed position, that is, in the first position, the arc-shaped convex surface 121 is tightly matched with the arc-shaped concave surface 1113, so that by making the matching part of the first end 1111 of the bypass oil channel 111 of the valve seat 110 and the valve core 120 an arc-shaped sealing surface, such as a spherical sealing surface or a conical sealing surface, the valve core 120 and the first end 1111 of the bypass oil channel 111 can be tightly matched during normal operation, the sealing effect is improved, and the effect of blocking the bypass oil channel 111 and the oil outlet channel 112 is improved. Furthermore, the embodiment can enhance the sealing property and ensure the best matching effect by the matching of the arc-shaped convex surface 121 and the arc-shaped concave surface 1113.

[0082] In some embodiments, the valve core 120 is provided with a plurality of guide ribs 122 at one end thereof. For example, the valve core 120 is provided with a plurality of guide ribs 122 at the end thereof away from the elastic member 130; when the valve core 120 is in the first position, the plurality of guide ribs 122 are located in the bypass oil passage 111. In this embodiment, the plurality of guide ribs 122 are arranged at one end of the valve core 120 and can be directly inserted into the bypass oil passage 111. Further, the guide ribs 122 and the bypass oil passage 111 are in clearance fit, which can ensure that the valve core does not deflect excessively when moving between the open and closed positions, so as to avoid sealing failure of the valve core.

[0083] Optionally, the number of the guide ribs 122 can be three, and the three guide ribs 122 are arranged at an angle on the valve core 120. In addition, in other embodiments, other numbers of guide ribs 122 can also be used, such as two or four, and the present embodiment is not limited in this regard.

[0084] In the valve core 120, the arc-shaped convex surface 121 can be arranged at the middle portion of the valve core 120, and the guide ribs 122 can be arranged at the lower portion of the valve core 120, i.e., the upper ends of the guide ribs 122 can be connected to the lower end of the arc-shaped convex surface 121, and the lower ends of the guide ribs 122 are free ends. The elastic member 130 connecting portion such as the first convex edge 123 can be arranged at the upper portion of the valve core 120, and the elastic member 130 can be sleeved outside the upper portion of the valve core 120, i.e., the elastic member 130 connecting portion.

[0085] In addition, by arranging the plurality of guide ribs 122 at the lower portion of the valve core 120, when the bypass valve assembly 100 is assembled, the valve core 120 can be smoothly guided into the valve seat 110, which can play a guiding role and facilitate installation. At the same time, it is also helpful to ensure that the valve core does not deflect excessively when moving between the open and closed positions, so as to avoid sealing failure of the valve core and improve the assembly and sealing effect.

[0086] In some embodiments, the end of the valve core 120 facing the elastic member 130 is provided with a first convex edge 123, and the end of the first convex edge 123 is provided with a first chamfer structure 1231; the end of the valve cover 140 facing the elastic member 130 is provided with a second convex edge 142, and the end of the second convex edge 142 is provided with a second chamfer structure 1421; one end of the elastic member 130 is sleeved on the first convex edge 123, and the other end of the elastic member 130 is sleeved on the second convex edge 142.

[0087] Optionally, the elastic member 130 can be a spring, one end of the spring is sleeved on the first convex edge 123, and the other end of the spring is sleeved on the second convex edge 142. In addition, in other embodiments, other types of elastic members 130 can also be used, which will not be described herein.

[0088] The elastic member 130 is sleeved on the first protruding edge 123 at one end thereof and is sleeved on the second protruding edge 142 at the other end thereof. Thus, the lower end of the spring is sleeved on the first protruding edge 123 of the valve core 120, and the bottom end of the spring can abut against the upper end surface of the first protruding edge 123. The upper end of the spring is sleeved on the second protruding edge 142 of the valve cover 140, and the top end of the spring can abut against the lower end surface of the second protruding edge 142. Further, in order to facilitate assembly of the spring, the first chamfer structure 1231 is arranged at the end of the first protruding edge 123, and the second chamfer structure 1421 is arranged at the end of the second protruding edge 142. For example, the first chamfer structure 1231 and the second chamfer structure 1421 can be tapered guide structures, which can be used to ensure smooth assembly of the spring and improve assembly efficiency.

[0089] Thus, through arrangement of the first protruding edge 123, the second protruding edge 142, the first chamfer structure 1231, and the second chamfer structure 1421, the spring can be stably and reliably arranged in the valve seat 110, which helps the spring to have better elasticity and good working reliability, facilitates assembly, ensures smooth assembly of the spring, and has high assembly efficiency.

[0090] In some embodiments, the valve cover 140 is provided with a through hole, and one end of the valve core 120 facing the elastic member 130 is provided with a groove 1232. For example, the upper portion of the valve core 120 is provided with the first protruding edge 123, and the upper end opening of the first protruding edge 123 forms the groove 1232.

[0091] According to the present embodiment, the outer wall of the valve seat 110 is provided with a plurality of elastic clamping members, and the plurality of elastic clamping members are arranged circumferentially around the oil outlet channel 112 of the valve seat 110. In this way, after the valve seat 110 is installed on the base 300, the valve seat 110 can be directly clamped and fixed on the base 300. Further, in some embodiments, the outer wall of the valve seat 110 is provided with a first annular protrusion and a second annular protrusion arranged axially at intervals, and a first annular groove 114 is formed between the first annular protrusion and the second annular protrusion. The first annular groove 114 is in communication with the bypass oil channel 111.

[0092] The first annular groove 114 can be in communication with the second end 1112 of the bypass oil passage 111, or the first annular groove 114 can be provided with an opening which can serve as the second end 1112 of the bypass oil passage 111; the first annular groove 114 is also in communication with the oil inlet 320 of the base 300. Thus, after the oil enters the oil inlet 320 of the base 300, it flows into the first annular groove 114 through the oil inlet cavity in the base 300, and then flows into the second end 1112 of the bypass oil passage 111 through the first annular groove 114 and then enters the bypass oil passage 111.

[0093] Further, in some embodiments, the outer wall of the valve seat 110 is provided with a groove accommodating the first sealing ring 116, which seals the oil passage to prevent unfiltered oil from entering the oil outlet passage 112 when the valve seat 110 is installed on the base 300. The outer wall of the valve seat 110 is also provided with a second annular groove 115 in which the first sealing ring 116 is sleeved; the first sealing ring 116 can be an annular sealing ring. For example, the outer wall of the valve seat 110 is provided with a third annular protrusion and a fourth annular protrusion spaced apart in the axial direction, and the second annular groove 115 is formed between the third annular protrusion and the fourth annular protrusion. The second annular groove 115 can be located below the first annular groove 114, and the first sealing ring 116 is arranged in the second annular groove 115. The outer wall of the valve seat 110 used for connecting the mounting hole 330 of the base 300 is provided with the second annular groove 115 in which the first sealing ring 116 is arranged. The first sealing ring 116 is located between the outer wall of the valve seat 110 and the inner wall of the mounting hole 330 of the base 300. The second annular groove 115 and the first annular groove 114 can both be located on the lower side of the valve seat disc 150.

[0094] The arrangement of the first sealing ring 116 can ensure the sealing of the bypass valve assembly 100 and the base 300, and enhance the connection sealing effect. Thus, the leakage of oil can be avoided during the operation of the engine, and the oil passage can be sealed to prevent unfiltered oil from entering the oil outlet passage 112, which helps to prolong the service life.

[0095] In some embodiments, the outer side of the shell 210 of the filter assembly 200 is sleeved with a second sealing ring 240; the second sealing ring 240 can be an annular sealing ring. The outer side wall of the shell 210 can be provided with at least one annular groove, for example, the outer side wall of the portion of the shell 210 used for connecting the base 300 is provided with at least one annular groove in which the second sealing ring 240 is sleeved. The second sealing ring 240 is located between the outer side wall of the shell 210 and the inner side wall of the base 300.

[0096] The second sealing ring 240 is arranged, so that the filter device is completely sealed with the engine, the connection sealing effect is enhanced, the oil filter device is not loose and leaked when the engine is running, the sealing effect is better, and the service life is prolonged.

[0097] Optionally, a limiting protrusion is arranged on the outer side of the shell 210, the limiting protrusion is arranged above the annular groove for mounting the second sealing ring 240, and the lower end surface of the protrusion abuts against the upper end surface of the base 300. The shell 210 can axially limit the base 300 through the arrangement of the limiting protrusion, so that the connection is more stable and reliable, and the working reliability of the filter device and the engine is enhanced.

[0098] In summary, the embodiment of the present application provides an integrated oil outlet channel type bypass valve based on the design concept of environmentally friendly oil filtration. When the filter device needs to be maintained or the filter element needs to be replaced due to severe blockage, the filter assembly or the filter element in the filter assembly can be directly removed, only the filter element assembly needs to be replaced, and the bypass valve assembly does not need to be replaced. The bypass valve assembly is retained on the base, and a new filter element is installed on the original bypass valve assembly, so that the operation is simple, waste caused by replacement of the bypass valve together with the filter element is avoided, the replacement of parts is reduced, resources are saved, costs are saved, and the environment is more friendly.

[0099] The parts not described in detail in the specification are known to those skilled in the art.

[0100] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the specification, the illustrative representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction, under the circumstances.

[0101] The embodiments of the present application are described above in combination with the drawings, but the present application is not limited to the above specific embodiments, the above specific embodiments are only illustrative, not restrictive, and those skilled in the art can make many forms under the inspiration of the present application without departing from the scope of the present application and the scope protected by the claims.

Claims

1. A filtration device, characterized in that, include: Base, filter assembly and bypass valve assembly; The bypass valve assembly includes a valve seat, a valve core, a valve cover, and an elastic element. The valve seat is provided with a valve seat disc and a filter element seat, and has a bypass oil passage and an oil outlet passage. The valve seat is provided with support arms, and at least two support arms form a receiving space. The valve core, the elastic element, and the valve cover are disposed within the receiving space. The support arms are provided with at least two slots, and the edge of the valve cover is provided with a locking protrusion, which engages with the slots. The filter assembly includes a housing, a filter element, and a sealing element; the filter assembly forms a filter space by the housing cooperating with the base, and the filter element is installed in the filter element holder; The base is provided with an oil inlet and an oil outlet; the middle part of the base is provided with a mounting through hole for mounting the valve seat, the oil outlet channel of the valve seat is located in the mounting through hole, and the bottom end of the mounting through hole is provided with the oil outlet; the left or right side of the base is provided with the oil inlet, and the oil inlet is connected to the oil inlet chamber inside the base for oil to enter the filter device; The axis of the valve core of the bypass valve assembly does not coincide with the axis of the filter element.

2. The filtration device according to claim 1, characterized in that, The axis of the valve core of the bypass valve assembly is parallel to the axis of the filter element.

3. The filtration device according to claim 2, characterized in that, The elastic element is disposed between the valve cover and the valve core, and the elastic element drives the valve core to keep the bypass oil passage of the bypass valve assembly normally closed.

4. The filtration device according to claim 1, characterized in that, The valve core has multiple guide ribs at one end.

5. The filtration device according to claim 1, characterized in that, The valve seat is divided into upper and lower sides by the valve seat disc. The bypass oil passage inlet and the oil outlet are located on one side of the valve seat, while the support arm, the valve core, the elastic element and the valve cover are located on the other side of the valve seat.

6. The filtration device according to claim 1, characterized in that, The valve seat is provided with multiple elastic retaining elements, which are arranged circumferentially around the oil outlet of the valve seat.

7. The filtration device according to any one of claims 1 to 6, characterized in that, The filter element is provided with a first snap-fit ​​component, and the housing is provided with a second snap-fit ​​component that snaps into the first snap-fit ​​component.

8. An engine assembly, comprising an engine body, characterized in that, It also includes a filter device as described in any one of claims 1 to 7, wherein the engine body is connected to the filter device via the base.

Images