CN114856755B

CN114856755B - Engine oil filter and car

Info

Publication number: CN114856755B
Application number: CN202210487817.0A
Authority: CN
Inventors: 欧阳丹; 施发义; 刘向晖; 张丽珠; 查乃敏
Original assignee: Dongfeng Motor Corp
Current assignee: Dongfeng Motor Corp
Priority date: 2022-05-06
Filing date: 2022-05-06
Publication date: 2023-06-13
Anticipated expiration: 2042-05-06
Also published as: CN114856755A

Abstract

The embodiment of the application discloses oil cleaner and car relates to car technical field, has solved when engine cold start, and filter element is not passed through to the machine oil, guarantees that filter element's impurity is not taken out oil cleaner by the machine oil, guarantees engine oil to lubricating system's cleanliness, has reduced engine lubricating system pressure valve jamming and moving part foreign matter wearing and tearing risk. The engine oil filter comprises a shell and a filter element assembly, wherein a containing cavity is formed in the shell, an oil inlet and an oil outlet are formed in the shell, and the oil outlet is communicated with the containing cavity; the filter element assembly is arranged between the accommodating cavity and the oil inlet; when the pressure of the engine oil entering the oil inlet is smaller than a first threshold value, the engine oil passes through the filter element assembly and enters the accommodating cavity; when the pressure of the engine oil entering the oil inlet is greater than or equal to a first threshold value, the filter element assembly moves away from the oil inlet to directly communicate the oil inlet with the accommodating cavity. The oil filter is used for filtering engine oil.

Description

Engine oil filter and car

Technical Field

The application relates to the technical field of vehicles, in particular to an oil filter and an automobile.

Background

An engine oil filter is arranged on the lubricating oil path of an automobile engine and other engineering machinery engines, impurities in engine oil are filtered through the engine oil filter, and the engine oil is pumped to all oil parts of the engine, so that the impurities are prevented from being stuck to all valves of a lubricating oil path, moving parts such as a worn bearing bush and the like.

The oil filter in the related art is generally provided with a bypass valve, when the engine is started at a low temperature, because the viscosity of the engine oil is high, the engine oil cannot pass through the filter element assembly, the engine oil pressure pushes the bypass valve open, and the engine oil cannot pass through the filter element assembly directly to lubricate all oil parts of the engine through the bypass valve. After the engine runs for a long time and durable, the filter element component filters and intercepts impurities and adheres to the filter paper, when the engine is started at a low temperature, the bypass valve is opened, at the moment, under the impact of pressure oil, the impurities adhered to the filter paper are impacted and taken away, and circulate to the positions of all oil parts of the engine through the bypass valve, and the impurities can lead to the clamping stagnation of the engine valve and the abrasion of a moving part.

Disclosure of Invention

The embodiment of the application provides an oil filter and car, when having solved engine cold start, the filter element is not passed through to the engine oil, guarantees that filter element's impurity is not taken out oil filter by the engine oil, guarantees engine oil to lubricating system's cleanliness, has reduced engine lubricating system pressure valve jamming and moving part foreign matter wearing and tearing risk.

In order to achieve the above purpose, the technical solution of the embodiments of the present application is implemented as follows:

in a first aspect, an embodiment of the present application provides an oil filter, including a housing and a filter element assembly, wherein a housing has a receiving cavity therein, an oil inlet and an oil outlet are provided on the housing, the oil outlet is communicated with the receiving cavity; the filter element assembly is arranged between the accommodating cavity and the oil inlet; when the pressure of the engine oil entering the oil inlet is smaller than a first threshold value, the engine oil passes through the filter element assembly and enters the accommodating cavity; when the pressure of the engine oil entering the oil inlet is greater than or equal to a first threshold value, the filter element assembly moves away from the oil inlet to directly communicate the oil inlet with the accommodating cavity.

The embodiment of the application provides an oil cleaner, hold the chamber in having in the casing, be provided with oil inlet and oil-out on the casing, the oil-out is with holding the chamber intercommunication, filter element assembly sets up and holds between chamber and the oil inlet, when the pressure of the engine oil that gets into the oil inlet is less than first threshold value, engine oil passes filter element assembly and gets into and hold the intracavity, because the oil-out is with holding the chamber UNICOM, engine oil after filter element assembly filters directly follows holding chamber flow direction oil-out, when the engine oil pressure that gets into the oil inlet is greater than or equal to first threshold value, filter element assembly moves away from the oil inlet, with oil inlet and hold chamber direct intercommunication, at this moment, engine oil does not get into filter element assembly, directly flow to holding the chamber through the oil inlet, it flows to the oil-out to hold the chamber from holding. In contrast to the prior art, when the engine oil cannot pass through the filter element assembly, the engine oil pressure pushes the bypass valve open, and the engine oil does not pass through the filter element assembly directly through the bypass valve to the engine oil path to lubricate the various engine oil parts. After the engine is operated for a long time durable, the filter element component filters the impurity of interception and adheres to on filter paper, after engine low temperature starts, the bypass valve is opened, at this moment under the pressure oil impact, the impurity of adhering to on the filter paper is taken away by the impact, and circulate each oil part position with the engine through the bypass valve, the impurity can lead to engine valve jamming and moving part wearing and tearing, the oil cleaner that this application provided, when the engine oil can't pass through the filter element component, the filter element component keeps away from the oil inlet motion, with oil inlet and hold the chamber intercommunication, at this moment, the engine oil is through holding the chamber from the oil inlet, then flow to the oil-out from holding the chamber, so, the engine oil does not get into the filter element component, avoid impurity in the filter element component to be taken away by the engine oil. That is, when the engine cold start has been solved to the oil cleaner that this application provided, the filter core subassembly is not passed through to the engine oil, guarantees that the impurity of filter core subassembly is not taken out oil cleaner by the engine oil, guarantees engine oil to lubricating system's cleanliness, has reduced engine lubricating system pressure valve jamming and moving part foreign matter wearing and tearing risk.

In one possible implementation manner of the present application, an elastic member is disposed on one side, away from the oil inlet, of the filter element assembly, and two ends of the elastic member are fixedly connected with the filter element assembly and the housing respectively, so as to drive the filter element assembly to move close to the oil inlet.

The oil filter that this application embodiment provided, because the elastic component has the resilience, when engine low temperature starts or viscidity is great, at this moment, when the pressure of the engine oil of entering the oil inlet is greater than or equal to first threshold value, the elastic component pressurized drives the filter core subassembly and keeps away from the oil inlet motion to with oil inlet and hold the chamber intercommunication, thereby the engine oil gets into from the oil inlet and holds the chamber and discharge by the oil-out, after engine operation a period, when the engine oil pressure of getting into the oil inlet is less than first threshold value, the elastic component resumes the normal position, at this moment, engine oil gets into from the filter core subassembly and holds the chamber, get into the oil-out through holding the chamber. Through the mode that sets up the elastic component, overcome elasticity through the engine oil pressure and promote the filter core subassembly and keep away from the oil inlet motion this mode simple and convenient, easy operation and be favorable to saving the cost of manufacture.

In one possible implementation of the present application, the filter element assembly includes a support, a filter material and a base, the support is fixed on the base, the filter material is disposed on the support, the base is connected with the elastic member, and the base slides along the housing in a sealing manner.

The embodiment of the application provides an oil filter, the base is connected with the elastic component, the support is fixed on the base, the filter media sets up on the support, when the engine oil viscosity is great or impurity is too much on the filter media, at this moment, the unable filter media that leads to of engine oil or the filter media flow resistance of engine oil, the pressure of the engine oil that gets into through the oil inlet increases gradually, when the pressure of engine oil is greater than the pressure of elastic component, the oil inlet is kept away from to the base and the oil inlet is slided and then drive the support and keep away from the oil inlet motion, the intercommunication oil inlet with hold the chamber, owing to hold chamber and oil-out intercommunication, the engine oil can directly reach the oil-out from the oil inlet and need not pass through the filter media, impurity on the filter media gets into the engine is avoided, guarantee engine oil to lubrication system's cleanliness, engine lubrication system pressure valve jamming and moving part foreign matter wearing and tearing risk have been reduced

In one possible implementation of the present application, a first sealing ring is provided between the base and the inner wall of the accommodating cavity to seal the accommodating cavity.

The embodiment of the application provides an oil cleaner, set up first sealing washer between base and holding the intracavity wall, avoid when the engine oil viscosity can't lead to filtering material or impurity too much greatly, the gap flow away between engine oil through base and the intracavity wall that holds, the oil inlet can't communicate with holding the chamber, and the phenomenon that engine oil can't follow the oil-out appears, influences the normal work of engine.

In one possible implementation manner of the present application, a first sealing groove is provided at a position of the base corresponding to the first sealing ring, and a size of the first sealing groove is adapted to the first sealing ring so as to fix the first sealing ring in the first sealing groove.

The embodiment of the application provides an oil cleaner, for the accurate, convenient location of first sealing washer between the inner wall in base and holding the chamber, avoid first sealing washer landing in assembly or use. Correspondingly, a first sealing groove is formed in the position, corresponding to the first sealing ring, of the base, and the size of the first sealing groove is matched with that of the first sealing ring so as to fix the first sealing ring in the first sealing groove.

In one possible implementation manner of the present application, a plurality of connection holes are provided on a side of the housing, to which the elastic member is connected, correspondingly.

The embodiment of the application provides an oil cleaner, when the continuous pressure that acts on of engine oil when the base, the casing corresponds the volume that is connected with one side of elastic component and diminishes, and pressure increases gradually, leads to the base can not continue along keeping away from the activity of one side of oil inlet, and the oil inlet is with the incompleteness that holds the chamber intercommunication, influences the speed that engine oil flowed into from the oil inlet and holds the chamber, in order to avoid this kind of problem to appear, corresponds one side that is connected with the elastic component at the casing and is equipped with a plurality of connecting holes.

In one possible implementation of the present application, a plurality of overflow holes are provided on the bracket to discharge the engine oil from the inside of the overflow holes.

The embodiment of the application provides an oil cleaner, the support is used for supporting the filter media, is provided with a plurality of overflow holes on the support to the engine oil that conveniently gets into from the oil inlet can be smoothly from the filter media filtration get into the oil-out and reach in each part of engine.

In one possible implementation of the present application, the filter element assembly further includes a check valve fixed on the bracket near the oil inlet, one end of the check valve is clamped at the oil inlet, and the other end of the check valve is provided with a communication hole to communicate the oil inlet with the accommodating cavity.

The embodiment of the application provides an oil cleaner, the check valve is one kind and relies on the medium, like the valve that engine oil pressure promotes automatic start and stop, and the effect of check valve mainly used prevents the refluence of engine oil, in case the engine oil backward flow, the check valve will close, and the check valve easily purchases and easy simple to operate, and the action is sensitive, and sealing performance is good.

In one possible implementation of the present application, the oil filter includes a pressing plate and a second sealing ring, the pressing plate cover is arranged on one side of the oil inlet arranged on the shell, and a second sealing groove is arranged on the pressing plate, and the second sealing groove is adapted to the second sealing ring in size so as to fix the second sealing ring in the second sealing groove.

The oil cleaner that this application embodiment provided, clamp plate lid establish one side that sets up the oil inlet on the casing, press filter element assembly in the shell the inside, and set up the second seal groove on the clamp plate, place the second sealing washer rather than the size adaptation in the second seal groove to fix the second sealing washer in the second seal groove, guarantee oil cleaner and driving system, like the seal between the engine.

In a second aspect, embodiments of the present application provide an automobile, including a power system and an oil filter provided by any one of the embodiments of the first aspect, where the power system is connected to the oil filter, and is configured to provide engine oil to the power system.

The embodiment of the application provides an automobile, because the engine oil filter that any embodiment of the first aspect provided has been included, consequently, have the same technical effect, when having solved engine cold start, engine oil does not pass through filter element assembly, guarantees that filter element assembly's impurity is not taken out engine oil filter by engine oil, guarantees engine oil to lubricating system's cleanliness, has reduced engine lubricating system pressure valve jamming and moving part foreign matter wearing and tearing risk.

Drawings

FIG. 1 is a schematic diagram of a related art oil filter;

FIG. 2 is a schematic diagram of the structure of an oil filter according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of an oil inlet in an oil filter in an embodiment of the present application communicating with a receiving cavity.

Reference numerals

01-a cartridge assembly; 02-a bypass valve; 03-an oil inlet; 04-an oil outlet; 1-a housing; 11-a receiving cavity; 12-oil inlet; 13-an oil outlet; 2-a filter element assembly; 21-a bracket; 22-a filter material; 23-a base; 231-a first seal groove; 24-check valve; 241-communication holes; 3-an elastic member; 4-a first sealing ring; 5-pressing plates; 51-a second seal groove; 6-a second sealing ring.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and technical features in the embodiments may be combined with each other, and the detailed description in the specific embodiments should be interpreted as an explanation of the gist of the present application and should not be construed as undue limitation to the present application.

For the purposes, technical solutions and advantages of the embodiments of the present application to be more apparent, the specific technical solutions of the present application will be described in further detail below with reference to the accompanying drawings in the embodiments of the present application. The following examples are illustrative of the present application, but are not intended to limit the scope of the present application.

In the present embodiments, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

Furthermore, in the embodiments of the present application, the terms "upper," "lower," "left," and "right," etc., are defined with respect to the orientation in which the components in the drawings are schematically disposed, and it should be understood that these directional terms are relative terms, which are used for descriptive and clarity with respect to each other, and which may vary accordingly with respect to the orientation in which the components in the drawings are disposed.

In the embodiments herein, unless explicitly specified and limited otherwise, the term "connected" is to be construed broadly, and for example, "connected" may be either a fixed connection, a removable connection, or an integral body; can be directly connected or indirectly connected through an intermediate medium.

In the present embodiments, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

In the embodiments of the present application, words such as "exemplary" or "such as" are used to mean serving as examples, illustrations, or descriptions. Any embodiment or design described herein as "exemplary" or "for example" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

The automobile generally comprises four basic parts of an automobile body, a chassis, electrical equipment and an engine, wherein the automobile body is arranged on a frame of the chassis and is used for a driver and a passenger to ride or load goods; the chassis is used for supporting and installing an automobile engine and an assembly of all parts to form an integral model of the automobile, and receiving the power of the engine to enable the automobile to move so as to ensure normal running. The chassis consists of a drive system, a running system, a steering system and a braking system; the electric equipment consists of a power supply and electric equipment. The power supply comprises a storage battery and a generator; the electric equipment comprises a starting system of an engine, an ignition system of a gasoline engine and other electric devices; the engine is a power device of an automobile and consists of a large system of 2 large mechanisms 5: the system comprises a crank-link mechanism, a valve mechanism, a cooling system, a fuel supply system, a lubrication system, an ignition system and a starting system, wherein the cooling system generally comprises a water tank, a water pump, a radiator, a fan, a thermostat, a water thermometer and a water discharge switch, an automobile engine adopts two cooling modes, namely air cooling and water cooling, the starting system comprises a starter or a storage battery, the ignition system comprises a spark plug, a high-voltage wire, a high-voltage coil, a distributor, an ignition switch and the like, and the crank-link mechanism comprises a connecting rod, a crankshaft, a bearing bush, a flywheel, a piston and the like; the fuel supply system can also be a power system of an automobile, and comprises a gasoline tank, a gasoline pipe, a gasoline pump and the like, and a lubrication system, such as an engine oil pump, an engine oil filter and the like.

The embodiment of the application provides an automobile, and the one end of oil pump in the automobile is connected with oil inlet of oil cleaner, and oil cleaner's oil-out is connected with the driving system oil duct, and oil cleaner is used for providing the clean engine oil after filtering to the driving system oil duct, and wherein, oil cleaner is any one of following embodiment.

According to the oil filter provided by the embodiment of the application, refer to fig. 1, fig. 2 and fig. 3, the oil filter comprises a shell 1 and a filter element assembly 2, wherein a containing cavity 11 is formed in the shell 1, an oil inlet 12 and an oil outlet 13 are formed in the shell 1, the oil outlet 13 is communicated with the containing cavity 11, the filter element assembly 2 is arranged between the containing cavity 11 and the oil inlet 12, when the pressure of engine oil entering the oil inlet 12 is smaller than a first threshold value, the engine oil passes through the filter element assembly 2 to enter the containing cavity 11, as the oil outlet 13 is communicated with the containing cavity 11, the engine oil filtered by the filter element assembly 2 directly flows from the containing cavity 11 to the oil outlet 13, the engine oil specifically flows to be shown in fig. 2, when the pressure of the engine oil entering the oil inlet 12 is larger than or equal to the first threshold value, the filter element assembly 2 moves away from the oil inlet 12 to directly communicate the oil inlet 12 with the containing cavity 11, and at this time, the engine oil does not enter the filter element assembly 2, directly flows to the containing cavity 11 through the oil inlet 12, and directly flows from the containing cavity 11 to the containing cavity 11. The specific flow direction of the engine oil is shown in fig. 3, compared with the prior art that when the engine oil passing through the oil inlet 03 cannot pass through the filter element assembly 01, the engine oil pressure pushes the bypass valve 02 open, and the engine oil does not pass through the filter element assembly 01 and directly passes through the bypass valve 02 to the oil outlet 03 to the engine oil path to lubricate all oil parts of the engine. After the engine is operated for a long time and durable, the filter element assembly 01 filters the impurity of interception and adheres to on the filter element assembly 01, after the engine is started at a low temperature, the bypass valve 02 is opened, at this moment under the impact of pressure oil, the impurity adhered to on the filter element assembly 01 is impacted and taken away, and through the bypass valve 02 circulation to each oil-using part position of the engine, the impurity can lead to engine valve clamping stagnation and moving part wearing and tearing, the oil filter that this application provided, when the engine oil can't pass through the filter element assembly 2, the filter element assembly 2 is kept away from the oil inlet 12 and is moved, in order to hold the chamber 11 intercommunication with the oil inlet 12, at this moment, the engine oil is from the oil inlet 12 through holding chamber 11, then from holding chamber 11 flow to oil-out 13, so, the engine oil does not get into the filter element assembly 2, avoid impurity in the filter element assembly 2 to be taken away by the engine oil. That is, when the engine cold start has been solved to the oil cleaner that this application provided, the filter core subassembly 2 is not passed through to the engine oil, guarantees that the impurity of filter core subassembly 2 is not taken out oil cleaner by the engine oil, guarantees engine oil to lubricating system's cleanliness, has reduced engine lubricating system pressure valve jamming and moving part foreign matter wearing and tearing risk.

Specifically, referring to fig. 2 and 3, when the pressure of the engine oil is greater than or equal to the first threshold value, the cartridge assembly 2 moves away from the oil inlet 12 to directly communicate the oil inlet 12 with the receiving chamber 11. The filter element assembly 2 moves away from the oil inlet 12 in various modes, such as linear movement, rotary movement and the like, and an elastic piece 3 is arranged on one side of the filter element assembly 2 away from the oil inlet 12, wherein two ends of the elastic piece 3 are respectively and fixedly connected with the filter element assembly 2 and the shell 1 so as to drive the filter element assembly 2 to move close to the oil inlet 12. Since the elastic member 3 has the restorability, when the engine is started at a low temperature or the viscosity is high, at this time, when the pressure of the engine oil entering the oil inlet 12 is greater than or equal to the first threshold value, the filter element assembly 2 moves away from the oil inlet 12 against the elastic force of the elastic member 3 to communicate the oil inlet 12 with the accommodating cavity 11, the engine oil enters the accommodating cavity 11 from the oil inlet 12 to be discharged from the oil outlet 13, and when the engine works for a period of time, at this time, when the pressure of the engine oil entering the oil inlet 12 is less than the first threshold value, the elastic member 3 returns to the original position, at this time, the engine oil enters the accommodating cavity 11 from the filter element assembly 2 and enters the oil outlet 13 through the accommodating cavity 11. Through the mode that sets up elastic component 3, overcome the elasticity of elastic component 3 through the engine oil pressure, promote filter element assembly 2 and keep away from oil inlet 12 motion this mode simple and convenient, easy operation and be favorable to saving the cost of manufacture.

As shown in fig. 2 and fig. 3, elasticity refers to the property that a material deforms under the action of an external force, the external force can be removed, the elastic piece 3 refers to a part which utilizes the elastic property and structural characteristics of the material to complete various functions, and the common elastic piece 3 is provided with a leaf spring, a flat coil spring, a spiral spring, a spring tube, a corrugated tube, a spring and the like, and the elastic piece 3 in the embodiment of the application can be any one of the common elastic pieces 3, so that the pressure of engine oil can overcome the elasticity of the elastic piece 3 only when the pressure of the engine oil is greater than or equal to a first threshold value, the filter element assembly 2 can be pushed to move away from the oil inlet 12 so as to communicate the oil inlet 12 with the accommodating cavity 11, and when the pressure of the engine oil is smaller than the first threshold value, the elasticity of the elastic piece 3 pushes the filter element assembly 2 to move close to the oil inlet 12, and the non-communication between the oil inlet 12 and the accommodating cavity 11 is ensured. Of course, the elastic member 3 other than the common elastic member 3 may be used in the embodiment of the present application, which is not limited thereto.

Specifically, referring to fig. 2 and 3, the filter element assembly 2 includes a bracket 21, a filter medium 22, and a base 23, the bracket 21 is fixed to the base 23, the filter medium 22 is disposed on the bracket 21, the base 23 is connected to the elastic member 3, and the base 23 slides along the housing 1 in a sealing manner. When the viscosity of engine oil is large and impurities on the filter material 22 cannot be passed through or the filter material 22 are too much, at this moment, the pressure of engine oil entering through the oil inlet 12 is gradually increased, when the pressure of engine oil is larger than the elasticity of the elastic component 3, the base 23 slides away from the oil inlet 12 and drives the bracket 21 to move away from the oil inlet 12, the oil inlet 12 is communicated with the accommodating cavity 11, the engine oil can directly reach the oil outlet 13 from the oil inlet 12 and does not pass through the filter material 22 due to the fact that the accommodating cavity 11 is communicated with the oil outlet 13, impurities on the filter material 22 are prevented from entering an engine, cleanliness of the engine oil to a lubricating system is guaranteed, the risk of clamping stagnation of a pressure valve of the engine lubricating system and foreign matter abrasion of a moving part of the engine oil is reduced, selection of the filter material 22 is related to the size of a first threshold value, specifically, the selection type of the filter material 22 is selected according to specific conditions, the filter material 22 selected by the method is filter paper, the filter paper cost is low, the acquisition is convenient, and the manufacturing cost of the engine oil filter is facilitated to be reduced. Wherein, the support 21 is used for supporting the filter medium 22, and a plurality of overflow holes are arranged on the support 21, so that the engine oil entering from the oil inlet 12 can be smoothly filtered from the filter medium 22 into the oil outlet 13 to reach all parts of the engine.

Further, referring to fig. 2 and 3, when the pressure of the engine oil continuously acts on the base 23, the volume of the casing 1 corresponding to the side to which the elastic member 3 is connected becomes smaller, and the pressure becomes larger, so that the base 23 cannot continue to move along the side away from the oil inlet 12, the oil inlet 12 is not completely communicated with the accommodating cavity 11, the speed of the engine oil flowing from the oil inlet 12 into the accommodating cavity 11 is affected, and in order to avoid such problems, a plurality of connecting holes are formed in the side of the casing 1 corresponding to the side to which the elastic member 3 is connected.

In some embodiments provided herein, referring to fig. 2 and 3, the filter element assembly 2 further includes a check valve 24, the check valve 24 is fixed on the bracket 21 near the oil inlet 12, one end of the check valve 24 is clamped at the oil inlet 12, and the other end of the check valve 24 is provided with a communication hole 241 to communicate the oil inlet 12 with the accommodating chamber 11. The check valve 24 is a valve which is automatically opened and closed by means of medium such as engine oil pressure, the check valve 24 is mainly used for preventing the engine oil from flowing backwards, once the engine oil flows reversely, the check valve 5 is closed, and the check valve 24 is easy to purchase, easy to install, sensitive in action and good in sealing performance.

For example, the check valve 24 may be made of a Rubber material, and the Rubber (Rubber) is a high elastic polymer material having a reversible deformation, and is elastic at room temperature, and can be greatly deformed by a small external force, and can be restored after the external force is removed. The rubber is a completely amorphous polymer with a low glass transition temperature and often a large molecular weight, greater than several hundred thousand. Rubber is classified into natural rubber and synthetic rubber. The natural rubber is prepared by extracting colloid from plants such as rubber tree, rubber grass, etc.; the synthetic rubber is obtained by polymerizing various monomers. The rubber elasticity is large. Can generate larger deformation under the action of small external force, and can recover the original state after the external force is removed. Can be synthesized artificially, has low cost and good physical and mechanical properties and chemical stability.

In some other embodiments provided in this application, referring to fig. 2 and 3, a first sealing ring 4 is disposed between a base 23 and an inner wall of a containing cavity 11, so as to avoid that when the viscosity of engine oil is large and the viscosity of engine oil cannot pass through a filter material 22 or impurities are too much, engine oil flows away through a gap between the base 23 and the inner wall of the containing cavity 11, an oil inlet 12 cannot be communicated with the containing cavity 11, and the engine oil cannot flow out from an oil outlet 13, which affects the normal operation of an engine.

For example, as shown in fig. 2 and 3, in order to accurately and conveniently position the first sealing ring 4 between the base 23 and the inner wall of the housing chamber 11, the first sealing ring 4 is prevented from sliding down during assembly or use. Correspondingly, a first sealing groove 231 is arranged at a position of the base 23 corresponding to the first sealing ring 4, and the size of the first sealing groove 231 is matched with that of the first sealing ring 4 so as to fix the first sealing ring 4 in the first sealing groove 231.

Further, referring to fig. 2 and 3, the oil filter includes a pressing plate 5 and a second sealing ring 6, the pressing plate 5 is disposed on the side of the casing 1 where the oil inlet 12 is disposed, and a second sealing groove 51 is disposed on the pressing plate 5, and the size of the second sealing groove 51 is adapted to the size of the second sealing ring 6 so as to fix the second sealing ring 6 in the second sealing groove 51. The pressing plate 5 is covered on one side of the shell 1, which is provided with the oil inlet 12, the filter element assembly 2 is pressed in the shell 1, the pressing plate 5 is provided with the second sealing groove 51, and the second sealing ring 6 which is suitable for the pressing plate is placed in the second sealing groove 51, so that the second sealing ring 6 is fixed in the second sealing groove 51, and the sealing between the oil filter and a power system such as an engine is ensured.

The above description is not intended to limit the scope of the invention, but is intended to cover any modifications, equivalents, and improvements within the spirit and principles of the invention.

Claims

1. An oil filter, comprising:

the shell is internally provided with a containing cavity, an oil inlet and an oil outlet are arranged on the shell, and the oil outlet is communicated with the containing cavity;

the filter element assembly is arranged between the accommodating cavity and the oil inlet;

when the pressure of the engine oil entering the oil inlet is smaller than a first threshold value, the engine oil passes through the filter element assembly and enters the accommodating cavity;

when the pressure of the engine oil entering the oil inlet is greater than or equal to the first threshold value, the filter element component is far away from the oil inlet so as to directly communicate the oil inlet with the accommodating cavity;

an elastic piece is arranged on one side, far away from the oil inlet, of the filter element assembly, and two ends of the elastic piece are respectively connected with the filter element assembly and the shell so as to drive the filter element assembly to abut against the oil inlet;

the filter element assembly comprises a support, a filter material and a base, wherein the support is fixed on the base, the filter material is arranged on the support, the base is connected with the elastic piece, and the base slides along the shell in a sealing way.

2. The oil filter of claim 1, wherein a first seal is disposed between the base and the inner wall of the receiving chamber to seal the receiving chamber.

3. The oil filter of claim 2, wherein a first seal groove is provided in the base corresponding to the first seal ring, and wherein the first seal groove is sized to fit the first seal ring to secure the first seal ring within the first seal groove.

4. The oil filter according to claim 1, wherein the housing is provided with a plurality of connection holes corresponding to a side to which the elastic member is connected.

5. The oil filter according to claim 1, wherein a plurality of spill openings are provided in the bracket to allow the oil to flow out of the spill openings.

6. The oil filter according to claim 1, wherein the cartridge assembly further comprises a check valve fixed to the bracket near the oil inlet, one end of the check valve being engaged at the oil inlet, the other end of the check valve being provided with a communication hole to communicate the oil inlet with the accommodation chamber.

7. The oil filter of claim 1, comprising a pressure plate and a second sealing ring, wherein the pressure plate is arranged on one side of the shell where the oil inlet is arranged, and a second sealing groove is arranged on the pressure plate, and the second sealing groove is adapted to the second sealing ring in size so as to fix the second sealing ring in the second sealing groove.

8. An automobile, comprising:

a power system;

the oil filter of any one of claims 1-7, the power system being coupled to the oil filter, the oil filter being configured to provide oil to the power system.