CN219865188U - Filtering device and engine assembly with same - Google Patents

Abstract

The utility model discloses a filtering device and an engine assembly with the same, and relates to the technical field of automobile parts/industrial filtering. A filtration device comprising: a base, a filter assembly, and a bypass valve assembly; the bypass valve assembly comprises a valve seat and a valve core, a valve seat disc and a filter element seat are arranged on the valve seat, and a bypass oil duct and an oil outlet channel are arranged in the valve seat; the filter assembly includes a housing, a filter element, and a seal member; the filter assembly is matched with the base through the shell to form a filter space, and the filter element is arranged on the filter element seat; an oil inlet and an oil outlet are arranged on the base; the axis of the valve core of the bypass valve assembly is not coincident with the axis of the filter element. The utility model can solve the problem that the bypass valve and the filter element are required to be replaced together during maintenance at present, and the filter element can be replaced independently, so that the bypass valve can be reused, the replacement of parts can be reduced, and the resources and the cost can be saved.

Description

Filtering device and engine assembly with same

Technical Field

The utility model 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

In recent years, based on implementation of the environmental protection concept, more and more automobile parts are currently made of environmental protection materials or are designed in an environmental protection mode, so that fewer parts are expected to be replaced in after-sales maintenance, more materials are saved, and maintenance are facilitated.

During normal operation of the engine, various parts in the engine need to be lubricated by engine oil to reduce the use wear, so that the service life is prolonged. The engine oil filter can be used for filtering or removing impurities in engine oil, and guaranteeing the cleanliness of supplied engine oil so as to protect an engine. The traditional spin-on machine oil filter generally comprises a metal shell, a filter element/filter medium, a bypass valve, a check valve and other parts, and engine oil enters an engine after being filtered by the filter element, so that a good lubricating effect can be ensured, and the abrasion of the engine is reduced.

In the engine oil filter, the bypass valve can be used for ensuring oil supply during cold start or filter element blockage. The bypass valve is normally closed without oil, and is opened only in several cases described below. For example, at cold start, the oil is viscous, resulting in excessive oil flow resistance and insufficient engine oil supply; at this time, the bypass valve can be opened because of overlarge oil pressure, so that engine oil bypasses (does not pass through) the filter element and directly flows into the engine, and the normal operation of the lubrication system is ensured. Or when the filter element is not replaced in time when the filter element reaches the limit service life, the filter element is blocked, so that the flow resistance of engine oil of the lubricating system is increased, at the moment, the bypass valve can be opened due to overlarge oil pressure, and the engine oil directly enters the engine by bypassing the filter element, so that the normal operation of the lubricating system is ensured, and the abrasion of the engine is reduced.

In a conventional oil filter, a bypass valve is mounted to an upper end portion of a filter cartridge, and the bypass valve and the filter cartridge are integrated. Thus, when the bypass valve and the filter element are replaced or maintained after sale, the bypass valve and the filter element are required to be replaced together, so that the resource material is wasted, the environment is not protected, and the cost of maintenance after sale is increased.

Disclosure of Invention

The present utility model aims to solve at least one of the above technical problems to some extent. Therefore, the utility model provides the filtering device and the engine assembly with the filtering device, and the filtering device can be used for independently replacing the filter element, so that the bypass valve can be reused, the replacement of parts can be reduced, the resources can be saved, and the cost can be saved.

In order to solve the technical problems, the utility model is realized as follows:

according to one aspect of the present utility model, there is provided a filtering apparatus comprising: a base, a filter assembly, and a bypass valve assembly; the bypass valve assembly comprises a valve seat and a valve core, a valve seat disc and a filter core seat are arranged on the valve seat, and a bypass oil duct and an oil outlet channel are arranged in the valve seat; the filter assembly includes a housing, a filter element, and a seal member; the filter assembly is matched with the base through the shell to form a filter space, and the filter element is arranged on the filter element seat; an oil inlet and an oil outlet are arranged on the base; the axis of the valve core of the bypass valve assembly is not coincident with the axis of the filter core.

In addition, the filtering device according to the utility model may have the following additional technical features:

in some of these embodiments, the axis of the spool of the bypass valve assembly is parallel to the axis of the cartridge.

In some of these embodiments, the bypass valve assembly further comprises a valve cover and an elastic member; the elastic piece is arranged between the valve cover and the valve core, and the elastic piece drives the valve core to keep the bypass oil duct of the bypass valve assembly normally closed.

In some of these embodiments, one end of the spool is provided with a plurality of guide ribs. The guide rib can be directly inserted into the bypass oil duct, and further, the guide rib is in clearance fit with the bypass oil duct so as to ensure that the valve core cannot deflect at an excessive angle to cause the sealing failure of the valve core when the valve core moves between opening and closing.

In some embodiments, the valve seat is provided with a supporting arm which encloses a containing space, and the valve core, the elastic piece and the valve cover are arranged in the containing space.

In some embodiments, the valve seat is divided into an upper side and a lower side by taking the valve seat disc as a boundary, the bypass oil passage inlet and the oil outlet passage outlet are positioned on one side of the valve seat, and the supporting arm, the valve core, the elastic piece and the valve cover are positioned on the other side of the valve seat. That is, 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 element, the elastic member and the valve cover are on the same side of the valve seat, with the plane of the valve seat disk being defined. It should be noted that the use of the valve seat disk as a boundary does not mean that the valve seat disk separates the valve seat into two parts that are not in communication up and down.

In some embodiments, the support arm is provided with at least two clamping grooves, the edge of the valve cover is provided with clamping protrusions, and the clamping protrusions are matched with the clamping grooves in a clamping manner. The elastic piece is connected between the valve cover and the valve core, and the elastic piece can drive the valve core to move from the second position to the first position.

In some embodiments, the valve seat is provided with a plurality of elastic clamping pieces, and the plurality of elastic clamping pieces are circumferentially distributed around the outlet of the oil outlet channel of the valve seat. Therefore, after the valve seat is mounted on the base, the valve seat can be directly clamped and fixed on the base.

In some embodiments, an arc concave surface is arranged at one side of the first end of the bypass oil duct, which faces the valve core, and an arc convex surface is arranged on the valve core; under the condition that the valve core is in a normally closed position, the arc convex surface is tightly matched with the arc concave surface.

In some of these embodiments, the outer wall of the valve seat is provided with a groove accommodating a first sealing ring which seals the oil passage from infiltration of unfiltered oil into the oil outlet passage when the valve seat is mounted on the base.

In some embodiments, the cartridge is provided with a first clip member and the housing is provided with a second clip member that clips to the first clip member. The first clamping piece and the second clamping piece can enable the shell to be connected with the filter element in a clamping mode.

According to another aspect of the present utility model, there is provided an engine assembly comprising an engine body, and further comprising the aforementioned filtering device; the engine body of the engine assembly is connected to the filter device as described above through a base.

In the present utility model, when the filter device is first mounted on an engine, the filter element of the filter assembly is engaged with the housing, and at this time, the filter element is assembled with the housing. The bypass valve assembly is inserted into the filter element, the inner surface of the inner cylinder of the filter element is matched with the filter element seat, and then the assembly is connected to the base through a connecting part of the shell, and the connecting part is usually in a thread form. When the filter element needs to be replaced, the shell is unscrewed, and the filter element assembly is clamped on the shell through the clamping piece, the bypass valve assembly is fixed on the base through the elastic clamping piece in a clamping mode, and only the shell and the filter element assembly are arranged on the component which is taken down at the moment, so that the filter element assembly can be taken down and replaced.

By adopting the technical scheme, compared with the prior art, the utility model has at least the following beneficial effects:

the filtering device comprises a base, a filtering component and a bypass valve component, wherein the bypass valve component is integrated on the base, a valve seat of the bypass valve component is provided with a bypass oil duct and an oil outlet channel, the axis of the oil outlet channel is not coincident with that of the bypass valve, the axis of a valve core of the bypass valve component is not coincident with that of a filter element, the filtering component is matched with the base through a shell to form a filtering space, and the filter element is arranged on a filter element seat on the valve seat. Therefore, through the arrangement, through the mode of integrating the bypass valve in the base, when maintenance is carried out or the filter element needs to be replaced due to serious blockage and the like, the shell and the filter element assembly in the filter element can be directly taken down, only the filter element assembly can be replaced, the bypass valve does not need to be replaced, the bypass valve can be continuously reserved on the base, a new filter element is installed on the original bypass valve and the base, the operation is simple and convenient, the waste caused by replacement of the bypass valve and the filter element can be avoided, the replacement of parts is reduced, resources are saved, the cost is saved, and the environment is protected.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

FIG. 1 is a schematic diagram of a filtering apparatus according to an embodiment of the present utility model;

fig. 2 is a schematic diagram illustrating a state in which a bypass oil passage is closed in a filtering device according to an embodiment of the present utility model;

fig. 3 is a schematic view illustrating a state in which a bypass oil passage is opened in a filtering device according to an embodiment of the present utility model;

FIG. 4 is a schematic illustration of a bypass valve assembly according to an embodiment of the present utility model;

FIG. 5 is a schematic illustration of an exploded view of a bypass valve assembly according to an embodiment of the present utility model;

FIG. 6 is a schematic structural diagram of a valve core according to an embodiment of the present utility model;

FIG. 7 is a schematic view of another view of a valve cartridge according to an embodiment of the present utility model;

fig. 8 is a schematic structural view of a valve seat according to an embodiment of the present utility model.

Reference numerals illustrate:

a 100-bypass valve assembly;

110-valve seat; 111-bypass oil passage; 1111-a first end; 1112-a second end; 1113-arcuate concave surface; 112-an oil outlet channel; 113-a support arm; 1131-a clamping groove; 114-a first annular groove; 115-a second annular groove; 116-a first sealing ring;

120-valve core; 121-an arcuate convex surface; 122-guiding ribs; 123-a first ledge; 1231-a first chamfer structure; 1232-groove;

130-an elastic member; 140-valve cover; 141-clamping convex; 142-a second ledge; 1421-a second chamfer structure;

150-valve seat disk;

160-a filter cartridge holder;

200-a filter assembly; 210-a housing; 220-a filter element; 230-a bracket; 240-a second sealing ring;

300-base; 310-oil outlet; 320-oil inlet; 330-mounting through holes.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present utility model may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type, and are not limited to the number of objects, such as the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

The following describes embodiments of the present utility model in detail through specific embodiments and application scenarios thereof with reference to the accompanying drawings. The description of the specific technical scheme is provided below.

Referring to fig. 1 to 8, the present embodiment provides a filtering device that can be applied to an engine assembly to filter engine oil entering the engine to ensure that the supplied engine oil is clean. In addition, the filtering device can be used in other equipment, and the specific use scene and working condition of the filtering device are not particularly limited in the embodiment of the utility model.

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

It should be noted that the core of the engine assembly is that the engine assembly comprises the filtering device provided by the embodiment of the utility model; the specific structure or connection manner or operation principle of the engine body or other structures included in the engine assembly may refer to the prior art, and this embodiment is not limited thereto, and will not be described in detail herein.

Specifically, the filtering device includes: base 300, filter assembly 200, and bypass valve assembly 100; the filter assembly 200 can be used for removing dust, various particulate matters and other impurities in engine oil to protect an engine; the bypass valve assembly 100 can be opened under special conditions such as cold start or filter element blockage, and can be used for ensuring oil supply during cold start or filter element blockage; wherein the mount 300 is adapted to be coupled to an engine body.

In this embodiment, the bypass valve assembly 100 is mounted to the base 300, i.e., the bypass valve assembly 100 is integrated with the base 300. The bypass valve assembly 100 includes a valve seat 110 and a valve core 120, a valve seat disk 150 and a filter core seat 160 are disposed on the valve seat 110, 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 disposed in the valve seat 110, and the oil outlet passage 112 is not coincident with the axis of the bypass valve.

The filter assembly 200 includes a housing 210, a cartridge 220, and a seal; the filter assembly 200 forms a filter space by the cooperation of the housing 210 and the base 300, and the filter element 220 is mounted on the filter element seat 160; an oil inlet 320 and an oil outlet 310 are arranged on the base 300; the axis of the spool 120 of the bypass valve assembly 100 is not coincident with the axis of the cartridge 220.

Optionally, the valve element 120 is disposed on the valve seat 110, and the valve element 120 has a relative position change with respect to the valve seat 110, and the valve element 120 may have an open or closed state; valve seat 110 may be removably coupled to filter assembly 200, such as cartridge 220 in filter assembly 200 being removably coupled to cartridge seat 160 of valve seat 110; the filter assembly 200 may also be detachably connected to the base 300, such as the housing 210 in the filter assembly 200 is detachably connected to the base 300, and a seal is provided between the housing 210 and the base 300. By adopting the detachable connection mode between the filter assembly 200 and the valve seat or the base, when maintenance or filter element replacement is needed, the connection relation between the valve seat 110 and the filter assembly 200 can be released, the connection relation between the filter assembly 200 and the base 300 is released, and the filter assembly 200 or the shell 210 and the filter element 220 in the filter assembly 200 are independently taken out, so that the bypass valve assembly 100 and the filter assembly 200 are prevented from being replaced together.

Thus, when the provided filter device is first installed in an engine, the filter element 220 and the housing 210 in the filter assembly 200 may be connected, for example, by a snap connection, and at this time, the filter element 220 and the housing 210 are assembled together to form the filter assembly 200. Then, the bypass valve assembly 100 may be inserted into the filter element 220, so that the inner surface of the inner cylinder of the filter element 220 is matched with the filter element seat 160, that is, the filter element 220 is detachably matched with the filter element seat 160, so that the filter assembly 200 and the bypass valve assembly 100 form a combination body; the assembly is then connected to the base 300 through a connection portion of the housing 210, which may be a threaded connection, but is not limited thereto, and may be a detachable connection such as a clamping connection; valve seat 110 in bypass valve assembly 100 is removably coupled to base 300, such as by a resilient clip secured to base 300. When maintenance is performed or the filter element is severely blocked and the filter element needs to be replaced, the housing 210 can be unscrewed, namely, the housing 210 is separated from the base 300, and the filter element 220 is clamped on the housing 210 through the clamping piece, the filter element 220 is separated from the base 300 together with the housing 210, and the bypass valve assembly 100 is fixed on the base 300 through the elastic clamping, so that only the housing 210 and the filter element assembly are taken down, and the filter assembly 200 is taken down from the base 300 for replacement without taking down and replacing together with the bypass valve assembly.

Like this, through the mode with bypass valve subassembly integrated in base 300, when maintenance or filter core need change etc. because of serious jam, can directly take off casing 210 and the filter core subassembly in the filter subassembly 200, can only change filter subassembly 200, and the bypass valve need not change, the bypass valve can continue to stay dress on base 300, install new filter core 220 on original bypass valve and base 300 can, easy and simple to handle, can avoid the bypass valve to change together with the filter core and cause extravagant, reduced the change of spare part, saved the resource, saved the cost and more environmental protection.

In this embodiment, the axis of the spool 120 of the bypass valve assembly is not coincident with the axis of the filter cartridge 220, and further, the axis of the spool 120 of the bypass valve assembly is parallel to the axis of the filter cartridge 220. The valve core 120 may be disposed near the circumferential edge of the valve seat 110 of the bypass valve assembly, that is, the valve core 120 may not be disposed in the middle of the valve seat 110, so that the axis of the bypass valve may not coincide with the axis of the oil outlet passage 112, or the axis of the valve core 120 may not coincide with the axis of the filter element 220. Thus, a larger oil outlet passage can be reserved, namely, the oil outlet passage 112 can have a larger range, and the oil outlet efficiency can be improved.

Thus, through the above-mentioned setting, the structure setting is reasonable, not only easy to assemble and dismantlement do benefit to the bypass valve subassembly and filter component 200's connection setting, can increase the scope of oil outlet channel moreover, improve oil efficiency.

In this embodiment, the valve seat 110 has an oil outlet passage 112 and a bypass oil passage 111, the oil outlet passage 112 is in communication with the filter assembly 200, the bypass oil passage 111 has a first end 1111 and a second end 1112, the first end 1111 of the bypass oil passage 111 is disposed adjacent to the oil outlet passage 112, that is, the first end 1111 of the bypass oil passage 111 is disposed near one side of the oil outlet passage 112, the second end 1112 of the bypass oil passage 111 may be adapted for oil intake, and the second end 1112 of the bypass oil passage 111 may be provided with an oil inlet 320. The first end 1111 of the bypass oil passage 111 may have an open and closed state, such as when the first end 1111 of the bypass oil passage 111 is closed, the bypass oil passage 111 is blocked from the oil outlet passage 112, and when the first end 1111 of the bypass oil passage 111 is open, the bypass oil passage 111 communicates with the oil outlet passage 112.

As shown in fig. 2 and 3, the valve element 120 is movably disposed on the valve seat 110, and the valve element 120 has a position change relative to the valve seat 110, and the valve element 120 may have an open or closed state, such as the valve element 120 having a first position and a second position relative to the valve seat 110. When the valve element 120 is in the first position, the first end 1111 of the bypass oil passage 111 is closed, the bypass oil passage 111 and the oil outlet passage 112 are isolated from each other, and the oil outlet passage 112 is communicated with the filter assembly 200, and in this state, that is, the bypass oil passage 111 is in the closed state, the engine oil filtered by the filter assembly 200 may enter the engine through the oil outlet passage 112. When the valve element 120 is in the second position, the first end 1111 of the bypass oil passage 111 is opened, the bypass oil passage 111 is communicated with the oil outlet passage 112, after the engine oil enters the bypass oil passage 111 through the second end 1112 of the bypass oil passage 111, the engine oil enters the oil outlet passage 112 from the first end 1111 of the bypass oil passage 111, and then enters the engine from the oil outlet passage 112, that is, in this state, the bypass oil passage 111 is in an opened state, the engine oil is not filtered by the filter assembly 200, and enters the oil outlet passage 112 from the bypass oil passage 111 and then enters the engine.

It can be understood that when the relative positions of the valve core 120 and the valve seat 110 are changed, the open and close state of the bypass oil duct 111 is also changed, and when the bypass oil duct 111 or the valve core 120 is in the closed state, the valve core 120 is closed at the first end 1111 of the bypass oil duct 111, for example, the communication between the first end 1111 of the bypass oil duct 111 and the oil outlet passage 112 can be blocked; when the bypass oil passage 111 is in the open state, the first end 1111 of the bypass oil passage 111 is opened, for example, the position of the valve element 120 can be adjusted to move the valve element 120, and the valve element 120 is opened to communicate the first end 1111 of the bypass oil passage 111 with the oil outlet passage 112.

Alternatively, valve seat 110 of bypass valve assembly 100 of the filter device is mounted in base 300, e.g., valve seat 110 is removably coupled to base 300.

The provided filtering device is characterized in that the bypass valve assembly 100 is detachably connected with the filter element 220 of the filtering assembly 200, for example, the bypass valve assembly 100 is inserted into the filter element 220, the shell 210 of the filtering assembly 200 is connected with the base 300 in a threaded manner, 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 seat 110 is movably provided with the valve core 120, and the valve seat 110 is provided with the oil outlet passage 112 and the bypass oil passage 111, the bypass oil passage 111 has an open-close state, the oil outlet passage 112 is communicated with the filter element 220 of the filter assembly 200, and the oil outlet passage 112 can be used as a main circulation passage of engine oil. Thus, in some cases, for example, in a normal situation, the valve core 120 is in the first position relative to the valve seat 110, the valve core 120 is in a closed state, that is, the bypass oil passage 111 is in a closed state, the bypass oil passage 111 and the oil outlet passage 112 are isolated from each other, that is, the first end 1111 of the bypass oil passage 111 is blocked, so that the engine oil can be filtered by the filter element 220 of the filter assembly 200 and then enter the engine after passing through the oil outlet passage 112. In other cases, such as a cold start at low temperature or a filter element blockage in the filter assembly 200, the valve element 120 is in the second position relative to the valve seat 110, the valve element 120 is in an open state, the bypass oil passage 111 is communicated with the oil outlet passage 112, that is, the first end 1111 of the bypass oil passage 111 is opened to communicate with the oil outlet passage 112, so that the engine oil directly enters the oil outlet passage 112 without passing through the filter element 220 of the filter assembly 200 after passing through the bypass oil passage 111, and then enters the engine after passing through the oil outlet passage 112. Therefore, the filtering device is based on the design concept of environment-friendly engine oil filtration, and provides an integrated oil outlet channel type bypass valve, so that when maintenance is carried out or a filter element needs to be replaced due to serious blockage, the filter assembly 200 or the shell 210 and the filter element 220 in the filter assembly 200 can be directly taken down, only the filter element 220 can be replaced, the bypass valve assembly 100 does not need to be replaced, the bypass valve assembly 100 is reserved on the base 300, a new filter element is installed on the original bypass valve assembly 100, waste caused by replacement of the bypass valve together with the filter element can be avoided, and replacement of parts is reduced.

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

Optionally, the oil inlet 320 of the base 300 may be in communication with the second end 1112 of the bypass oil duct 111, and the oil inlet 320 may also be in communication with the filter assembly 200. Illustratively, the middle part of the base 300 is provided with a mounting through hole 330 for mounting the valve seat 110, the oil outlet channel 112 of the valve seat 110 is positioned in the mounting through hole 330, and the bottom end of the mounting through hole 330 can be provided with an oil outlet 310; an oil inlet 320 may be provided at the left or right side of the base 300, and the oil inlet 320 communicates with an oil inlet chamber inside the base 300 for oil to enter the filtering device.

At least part of the valve seat 110 is installed in the installation through hole 330 of the base 300, for example, the middle lower portion of the valve seat 110 is disposed in the installation through hole 330, the upper portion of the valve seat 110 extends upward to be connected with the filter assembly 200, at least part of the oil outlet passage 112 of the valve seat 110 is disposed in the installation through hole 330, and the outlet end of the oil outlet passage 112 is communicated with the oil outlet 310 of the base 300. By mounting valve seat 110 of bypass valve assembly 100 on base 300, it is designed as an integrated oil outlet channel bypass valve, and during normal operation, engine oil enters through oil inlet 320 of base 300, then enters oil outlet channel 112 of bypass valve assembly 100 after being filtered by filter assembly 200, and then flows out from oil outlet channel 112 and oil outlet 310 of base 300 and into the engine. In the case of cold start at low temperature or filter element blockage in the filter assembly 200, engine 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, i.e., engine 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 after passing through the oil outlet 310 of the base 300. During maintenance, the bypass valve assembly 100 may be retained on the base 300 without the bypass valve assembly 100 having to be replaced with a filter cartridge.

Alternatively, valve seat 110 is detachably mounted in mounting through hole 330 of base 300, for example, valve seat 110 is connected to mounting through hole 330 by means of a snap-fit connection. In some embodiments, the valve seat 110 is provided with a plurality of elastic clips, and the plurality of elastic clips are circumferentially arranged around the outlet of the oil outlet passage 112 of the valve seat 110. In this way, after valve seat 110 is mounted in mounting hole 330 of the base, valve seat 110 can be directly clamped and fixed to the base. The clamping mode is simple in structure, convenient to install and detach, reliable in connection structure and convenient to maintain.

Of course, in other embodiments, the valve seat 110 and the mounting hole 330 of the base 300 may be detachably connected by a threaded connection, which is not limited in this embodiment.

With continued reference to FIG. 1, in some embodiments, the filter assembly 200 may further include a bracket 230; the shell 210 of the filter assembly 200 is provided with an inner cavity, the inner cavity is communicated with the oil inlet 320 of the base 300, the bracket 230 and the filter element 220 are arranged in the inner cavity, and the filter element 220 is sleeved on the bracket 230; and the inner space of the cartridge 220 communicates with the oil outlet passage 112. The support 230 is a filter support, the support 230 may be used to fix the filter 220, and the filter 220 is a filter element and may be used to remove various impurities or dirt. Alternatively, the bracket 230 and the cartridge 220 may be integrally formed, i.e., the bracket 230 is manufactured together when the cartridge 220 is manufactured. Alternatively, in other cases, the support 230 and the filter element 220 may be separate structures, and the support 230 and the filter element 220 may be detachably or fixedly connected together.

The casing 210 and the base 300 may be detachably connected by using threads, etc., and an inner cavity of the casing 210 is communicated with the oil inlet 320 of the base 300, so that the engine oil to be filtered enters from the oil inlet 320 of the base 300 and then passes through the oil inlet cavity inside the base 300, and then can be diffused into the inner cavity of the casing 210 to be filtered by the filter element 220 in the inner cavity. For example, a plurality of inlets can be circumferentially arranged in the inner cavity of the housing 210, so that the engine oil to be filtered can be supplied into the inner cavity in a dispersed manner, so that the engine oil enters from a plurality of positions in the circumferential direction of the inner cavity, the dispersion efficiency and uniformity of the engine oil in the inlet channel of the filter assembly 200 can be improved, and the filter efficiency can be improved.

Optionally, the filter element 220 is provided with a first clamping member, and the housing 210 is provided with a second clamping member that is clamped with the first clamping member. The first and second snap-fit members may enable the housing 210 and the cartridge 220 to be snap-fit. Like this, simple structure, easy to assemble and dismantlement, connection structure is reliable, and the maintenance of being convenient for. Of course, in other embodiments, the housing 210 and the filter element 220 may be detachably connected by a threaded connection or the like.

As shown in fig. 2-5, in some embodiments, the bypass valve assembly 100 further includes a valve cover 140 and a resilient member 130; the valve cover 140 is connected to the valve seat 110, the elastic member 130 is disposed between the valve cover 140 and the valve core 120, the elastic member 130 can drive the valve core 120 to keep the bypass oil passage of the bypass valve assembly normally closed, and the elastic member 130 can drive the valve core 120 to move from the second position to the first position.

In the bypass valve assembly 100, the valve body 120 is connected to the valve seat 110 and is movably disposed along the axial direction of the valve seat 110, and an elastic member 130 capable of providing an elastic force and a valve cap 140 capable of pressing one end of the elastic member 130 are further disposed so that the valve body 120 is movable. Illustratively, the elastic member 130 and the valve core 120 are disposed on the valve seat 110, the elastic member 130 is sleeved on the outer side of the valve core 120, and one end, such as the top end, of the elastic member 130 abuts against the valve cover 140, and the elastic member 130 can drive the valve core 120 to keep the bypass valve normally closed.

Thus, during normal operation, the valve core 120 is sealed and connected with the valve seat 110 by the pressure of the elastic member 130, that is, the first end 1111 of the bypass oil passage 111 is blocked from communicating with the oil outlet passage 112 by the sealing between the valve core 120 and the valve seat 110, and 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 filters engine oil normally, the elastic member 130 elastically abuts between the valve element 120 and the valve seat 110, the elastic member 130 presses the upper end of the valve element 120, the lower end of the valve element 120 seals with the valve seat 110, at this time, the valve element 120 is in the first position, the sealing of the valve element 120 and the valve seat 110 blocks the first end 1111 of the bypass oil passage 111 from the oil outlet passage 112, and the bypass oil passage 111 is in the closed state. Alternatively, in this state, the upper end of the elastic member 130 is pressed by the valve cover 140 and is clamped in the clamping groove 1131 of the valve seat 110.

When the filter device is blocked or the filter element is blocked, or the engine is cold started at low temperature, the oil pressure in the filter cavity can be increased, the oil pressure of the oil inlet cavity is increased and is larger than the oil pressure of the oil outlet cavity, when the oil pressure is increased to a certain value, the valve core 120 is pushed upwards under the pressure difference, if the valve core 120 moves upwards, the lower end of the valve core 120 is unsealed from 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, the first end 1111 of the bypass oil duct 111 is opened, the bypass oil duct 111 is in an opened state, and the first end 1111 of the bypass oil duct 111 is communicated with the oil outlet passage 112. Thus, after the oil enters from the second end 1112 of the bypass oil passage 111, the oil flows into the oil outlet passage 112 through the first end 1111 of the bypass oil passage 111, and directly flows into the engine from the oil outlet passage 112 without passing through the filter assembly 200, so that the oil pressure in the filter chamber can be reduced. At this time, the engine oil is not filtered by the filtering device, and the filtering device does not have the engine oil filtering effect, but can ensure that the engine oil smoothly flows out of the filtering device and ensures normal lubrication.

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

In some embodiments, the valve seat 110 is divided into upper and lower sides by the valve seat disk 150, the inlet of the bypass oil passage 111 and the outlet of the oil outlet passage 112 are located on one side of the valve seat 110, and the support arm 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, the inlet of the bypass oil passage 111 and the outlet of the oil outlet passage 112 are on the same side of the valve seat 110, for example, on the lower side of the valve seat 110, with the plane in which the valve seat disk 150 is located as a boundary; support arm 113, valve core 120, elastic member 130, and valve cover 140 are located on the same side of valve seat 110, for example, on the upper side of valve seat 110. It should be understood that demarcating the valve seat disk 150 does not mean that the valve seat disk 150 separates the valve seat into two portions that are not in communication up and down.

Further, in some embodiments, at least a portion of the plurality of support arms 113 are provided with a clamping groove 1131, for example, at least two clamping grooves 1131 are provided in the support arms 113, and a clamping protrusion 141 is provided at an edge of the valve cover 140, and the clamping protrusion 141 is in clamping fit with the clamping groove 1131.

Alternatively, the valve seat 110 may be provided with two support arms 113, and the two support arms 113 are symmetrically arranged at intervals and enclose an accommodating space. At least a portion of the support arms 113, such as the upper ends of the support arms 113, may be provided with detents 1131, with corresponding detents 1131 in both support arms 113. The elastic member 130 and the valve core 120 may be disposed in the accommodating space, and the valve cover 140 may also be disposed in the accommodating space, and the valve cover 140 is connected to the clamping groove 1131 by means of clamping. Illustratively, the edge of the valve cover 140 may be provided with a snap tab 141, i.e., a snap tab, and the valve cover 140 is snap-fittingly coupled to the snap groove 1131 of the support arm 113 of the valve seat 110 by the snap tab 141.

Alternatively, the clamping groove 1131 may be a rectangular or square clamping hole. The upper end of the elastic member 130 may be pressed and caught by the cap 140 in the catching groove 1131 of the supporting arm 113 of the valve seat 110. Of course, in other embodiments, the clamping groove 1131 may have other shapes and structures, which are not limited in this embodiment.

In order to effectively and elastically stop the elastic member 130 and enhance the working reliability of the bypass valve, in this embodiment, the clamping groove 1131 is provided on the supporting arm 113 of the valve seat 110, and the clamping protrusion 141 of the valve cover 140 is in clamping fit with the clamping groove 1131, so that the upper end of the elastic member 130 can be pressed. The setting mode is reliable in connection, simple in structure, convenient to install and detach, and good in elasticity and working reliability.

As shown in fig. 6 to 8, in some embodiments, a side of the first end 1111 of the bypass oil passage 111 facing the valve core 120 is provided with an arc concave surface 1113, and the valve core 120 is provided with an arc convex surface 121; with the valve spool 120 in the normally closed position, as with the valve spool 120 in the first position, the arcuate convex surface 121 mates with the arcuate concave surface 1113.

In some embodiments, both arcuate convex surface 121 and arcuate concave surface 1113 are spherical or conical surfaces. Illustratively, the arcuate convex surface 121 may be a convex spherical surface and the arcuate concave surface 1113 may be a concave spherical surface adapted to the convex spherical surface; alternatively, the arcuate convex surface 121 may be a convex tapered surface and the arcuate concave surface 1113 may be a concave tapered surface that mates with the convex tapered surface.

According to the present embodiment, the first end 1111 of the bypass oil passage 111 can be opened or closed by adjusting the position of the valve element 120 relative to the valve seat 110, that is, the bypass oil passage 111 is communicated with or blocked from the oil discharge passage 112. The bypass oil passage 111 of the valve seat 110 has a matching position with the valve core 120, at least part of the valve core 120 is provided with an arc convex surface 121, also called a convex sealing surface, and correspondingly, the bypass oil passage 111 of the valve seat 110 is provided with an arc concave surface 1113, also called a concave sealing surface, at the position where the bypass oil passage 111 of the valve seat 110 is matched with the valve core 120. In the case where the valve element 120 is in the normally closed position, that is, the first position, the arcuate convex surface 121 is tightly fitted with the arcuate concave surface 1113, so that by making the fitting of the first end 1111 of the bypass oil passage 111 of the valve seat 110 with the valve element 120 an arcuate sealing surface, such as a spherical sealing surface or a tapered sealing surface, the valve element 120 can be tightly fitted with the first end 1111 of the bypass oil passage 111 in normal operation, thereby improving the sealing effect and the effect of blocking the bypass oil passage 111 and the oil outlet passage 112 from each other. Furthermore, in this embodiment, by the arrangement of the arc convex surface 121 and the arc concave surface 1113 which are mutually matched, the sealing property can be enhanced, and the optimal matching effect can be ensured.

In some embodiments, one end of the spool 120 is provided with a plurality of guide ribs 122. For example, a plurality of guide ribs 122 are disposed at one end of the valve core 120 facing away from the elastic member 130; with the spool 120 in the first position, the plurality of guide ribs 122 are each located within the bypass oil passage 111. In this embodiment, by arranging a plurality of guide ribs 122 at one end of the valve core 120, the guide ribs 122 can be directly inserted into the bypass oil duct 111, and further, the guide ribs 122 and the bypass oil duct 111 are in clearance fit, so that the valve core can be ensured not to deflect at an excessive angle when moving between opening and closing, and the sealing of the valve core is invalid.

Alternatively, the number of the guide ribs 122 may be three, and the three guide ribs 122 are disposed at an angle to the valve core 120. In other embodiments, other numbers of guide ribs 122, such as two or four, may be used, which is not limited in this example.

In the valve core 120, the arc convex surface 121 may be disposed in the middle of the valve core 120, the guide rib 122 may be disposed at the lower portion of the valve core 120, that is, the upper end of the guide rib 122 may be connected with the lower end of the arc convex surface 121, and the lower end of the guide rib 122 is a free end. An elastic member 130 connecting portion, such as a first flange 123, may be disposed at an upper portion of the valve core 120, and the elastic member 130 may be sleeved at an upper portion of the valve core 120, i.e., an outer side of the elastic member 130 connecting portion.

In addition, by arranging a plurality of guide ribs 122 at the lower part of the valve core 120, the valve core 120 can be ensured to be smoothly guided into the valve seat 110 when the bypass valve assembly 100 is assembled, the guide function can be realized, and the installation is convenient; meanwhile, the valve core is also beneficial to ensuring that the valve core cannot deflect excessively at an angle when moving between opening and closing, so that the sealing of the valve core is invalid, and the assembly and sealing effects are improved.

In some embodiments, an end of the valve core 120 facing the elastic member 130 is provided with a first protruding edge 123, and an end of the first protruding edge 123 is provided with a first chamfering 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 part of the second convex edge 142 is provided with a second chamfering structure 1421; one end of the elastic member 130 is sleeved on the first protruding edge 123, and the other end of the elastic member 130 is sleeved on the second protruding edge 142.

Alternatively, the elastic member 130 may be a spring, where one end of the spring is sleeved on the first protruding edge 123, and the other end of the spring is sleeved on the second protruding edge 142. In addition, in other embodiments, other types of elastic members 130 may be used, which will not be described herein.

In the valve core 120, an elastic member 130 is disposed at an upper portion of the valve core 120, such as a first flange 123, and a first chamfer structure 1231 may be disposed at a top end of the first flange 123; the end of the valve cover 140 facing the elastic member 130, such as the lower portion of the valve cover 140, is provided with a second protruding edge 142, and the bottom end of the second protruding edge 142 may be provided with a second chamfering structure 1421; one end of the elastic member 130 is sleeved on the first protruding edge 123 at the lower end, and the other end of the elastic member 130 is sleeved on the second protruding edge 142 at the upper end. Therefore, the elastic member 130, such as the lower end of the spring, is sleeved on the first protruding edge 123 of the valve core 120, the bottom end of the spring can be abutted with the protruding 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 be abutted with the protruding lower end surface of the second protruding edge 142. Further, in order to facilitate assembly of the spring, a first chamfer structure 1231 is disposed at the end of the first flange 123, and a second chamfer structure 1421 is disposed at the end of the second flange 142, for example, the first chamfer structure 1231 and the second chamfer structure 1421 may be tapered guiding structures, so that smooth assembly of the spring can be ensured, and assembly efficiency can be improved.

Therefore, through the arrangement of the first protruding edge 123, the second protruding edge 142, the first chamfer structure 1231, the second chamfer structure 1421 and the like, the elastic element 130 such as a spring can be stably and reliably arranged in the valve seat 110, so that the spring has better elasticity and good working reliability, is convenient to assemble, can ensure that the spring is smoothly guided into and assembled, and has higher assembly efficiency.

In some embodiments, the valve cover 140 is provided with a through hole, and the 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 a first flange 123, and the upper end of the first flange 123 is opened to form the groove 1232.

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 circumferentially arranged around the outlet of the oil outlet passage 112 of the valve seat 110. In this way, after valve seat 110 is mounted on base 300, valve seat 110 can be directly engaged with and fixed to 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 disposed at intervals in the axial direction, and a first annular groove 114 is formed between the first annular protrusion and the second annular protrusion, and the first annular groove 114 communicates with the bypass oil passage 111.

The first annular groove 114 may be in communication with the second end 1112 of the bypass oil passage 111, or the first annular groove 114 may be provided with an opening that may serve as the second end 1112 of the bypass oil passage 111; the first annular groove 114 also communicates with an oil inlet 320 of the base 300. Thus, after entering from the oil inlet 320 of the base 300, the engine oil flows into the first annular groove 114 through the oil inlet cavity inside the base 300, flows into the second end 1112 of the bypass oil passage 111 through the first annular groove 114, and then enters into the bypass oil passage 111.

Further, in some embodiments, the outer wall of valve seat 110 is provided with a groove that accommodates first seal ring 116, and first seal ring 116 seals the oil path from infiltration of unfiltered oil into oil outlet passage 112 when valve seat 110 is mounted on base 300. The outer wall of the valve seat 110 is also provided with a second annular groove 115, and a first sealing ring 116 is sleeved in the second annular groove 115; the first seal ring 116 may be an annular seal ring. Illustratively, the outer wall of the valve seat 110 is provided with a third annular protrusion and a fourth annular protrusion axially spaced apart from each other, and a second annular groove 115 is formed between the third annular protrusion and the fourth annular protrusion, and the second annular groove 115 may be located below the first annular groove 114, and a first sealing ring 116 is disposed in the second annular groove 115. The valve seat 110 is provided with a second annular groove 115 on the outer wall of the portion connected to the mounting through hole 330 of the base 300, and a first seal ring 116 is provided in the second annular groove 115, and the first seal ring 116 is located between the outer wall of the valve seat 110 and the inner wall of the mounting through hole 330 of the base 300. The second annular groove 115 and the first annular groove 114 may each be located on the underside of the valve seat disk 150.

Through the arrangement of the first sealing ring 116, the tightness of the bypass valve assembly 100 and the base 300 can be ensured, and the connection sealing effect is enhanced, so that the engine can avoid leakage of engine oil when running, the oil way can be sealed to avoid the unfiltered oil from penetrating into the oil outlet channel 112, and the service life is prolonged.

In some embodiments, the outer side of the housing 210 in the filter assembly 200 is sleeved with a second seal ring 240; the second seal ring 240 may be an annular seal ring. The outer sidewall of the housing 210 may be provided with at least one annular groove, for example, at least one annular groove may be provided on the outer sidewall of the portion of the housing 210 for connection with the base 300, and a second seal ring 240 may be sleeved in the annular groove, and the second seal ring 240 is located between the outer sidewall of the housing 210 and the inner sidewall of the base 300.

Through the setting of second sealing ring 240, can guarantee that filter equipment and engine are sealed completely, strengthened the sealed effect of connection, engine oil filter equipment can not become flexible and leak like this when the operation, and sealed effect is better, helps increase of service life.

Alternatively, the outer side of the housing 210 may be provided with a limit protrusion disposed above the annular groove for mounting the second seal ring 240, and the protruding lower end surface abuts against the upper end surface of the base 300. The casing 210 can play an axial limiting role on the base 300 through the arrangement of the limiting protrusions, so that connection is more stable and reliable, and the working reliability of the filtering device and the engine is enhanced.

In summary, the embodiment of the utility model provides the integrated oil outlet channel type bypass valve based on the design concept of environmental protection engine oil filtration, when the filter device is maintained or the filter element needs to be replaced due to serious blockage, the filter element in the filter element or the filter element can be directly taken down, only the filter element assembly can be replaced, the bypass valve assembly and the like do not need to be replaced, the bypass valve assembly is kept on the base, a new filter element is installed on the original bypass valve assembly, the operation is simple and convenient, the waste caused by replacement of the bypass valve and the filter element can be avoided, the replacement of parts is reduced, the resource is saved, the cost is saved, and the environment is protected.

The parts of the present utility model not described in detail in the specification are known to those skilled in the art.

In the present disclosure, the terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The embodiments of the present utility model have been described above with reference to the accompanying drawings, but the present utility model is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present utility model and the scope of the claims, which are to be protected by the present utility model.

Claims (10)

1. A filter device, comprising: a base, a filter assembly, and a bypass valve assembly;

the bypass valve assembly comprises a valve seat and a valve core, a valve seat disc and a filter element seat are arranged on the valve seat, and a bypass oil duct and an oil outlet channel are arranged in the valve seat;

the filter assembly includes a housing, a filter element, and a seal member; the filter assembly is matched with the base through the shell to form a filter space, and the filter element is arranged on the filter element seat;

an oil inlet and an oil outlet are arranged on the base;

the axis of the valve core of the bypass valve assembly is not coincident with the axis of the filter element.

2. The filter apparatus of claim 1, wherein an axis of the valve spool of the bypass valve assembly is parallel to an axis of the filter cartridge.

3. The filter device of claim 2, wherein the bypass valve assembly further comprises a valve cover and an elastic member; the elastic piece is arranged between the valve cover and the valve core, and the elastic piece drives the valve core to keep a bypass oil duct of the bypass valve assembly normally closed.

4. The filter device of claim 1, wherein one end of the valve core is provided with a plurality of guide ribs.

5. A filter device according to claim 3, wherein the valve seat is provided with a support arm which encloses a receiving space, and the valve element, the elastic member and the valve cover are arranged in the receiving space.

6. The filter device according to claim 5, wherein the valve seat is divided into upper and lower sides with the valve seat plate as a boundary, the bypass oil passage inlet and the oil outlet passage outlet are located at one side of the valve seat, and the support arm, the valve element, the elastic member and the valve cover are located at the other side of the valve seat.

7. The filter device of claim 5, wherein at least two clamping grooves are formed in the supporting arm, clamping protrusions are arranged on the edge of the valve cover, and the clamping protrusions are matched with the clamping grooves in a clamping mode.

8. The filter device according to claim 1, wherein the valve seat is provided with a plurality of elastic clips circumferentially arranged around the outlet of the oil outlet passage of the valve seat.

9. The filter device according to any one of claims 1 to 8, wherein the filter cartridge is provided with a first clamping member and the housing is provided with a second clamping member that is clamped with the first clamping member.

10. An engine assembly comprising an engine body, further comprising a filter device according to any one of claims 1 to 9, said engine body being connected to said filter device by said mount.