Filtering device, engine and vehicle

Abstract

The invention discloses a filtering device, an engine and a vehicle, and belongs to the technical field of vehicle engineering. The oil storage container is provided with a first oil storage cavity and a second oil storage cavity; an oil pump; the oil suction mechanism is provided with an oil conveying port, a first oil suction port and a second oil suction port, the oil conveying port is connected with an oil inlet of the oil pump, the first oil suction port and the second oil suction port are connected with the first oil storage cavity and the second oil storage cavity respectively, the oil conveying port is communicated with the first oil suction port or the second oil suction port, and the first oil suction port and the second oil suction port are communicated with the first oil storage cavity and the second oil storage cavity respectively. The oil pump is arranged in the first oil storage cavity or the second oil storage cavity so as to suck oil from the first oil storage cavity or the second oil storage cavity; the filter is connected with an oil outlet of the oil pump; and the oil return mechanism is connected with the second oil storage cavity and the oil return port. According to the filtering device, the engine and the vehicle, the technical problems that the engine oil filtering performance of an engine is not ideal, and oil using parts are clamped and high in abrasion risk can be effectively solved.

Description

Technical Field

[0001] This application belongs to the field of vehicle engineering technology, and in particular relates to a filtration device, an engine, and a vehicle. Background Technology

[0002] Oil filters are typically installed in the lubrication lines of automotive engines and other construction machinery engines to filter impurities in the oil, reducing the risk of jamming and wear on various oil-using components. Many oil filters are equipped with bypass valves. When the oil viscosity is too high or its flowability is insufficient, the bypass valve is passively opened under oil pressure, allowing unfiltered oil to flow through the bypass passage instead of the filter element into the lubrication lines, thus maintaining reliable lubrication of all oil-using components.

[0003] However, unfiltered lubricating oil increases the risk of seizing and wear on various oil-using components, affecting their operational stability and service life. This risk is particularly high for oil-using equipment such as range-extended engines that experience frequent low-temperature starts. Summary of the Invention

[0004] This application provides a filtration device, an engine, and a vehicle, aiming to at least partially solve the technical problems of unsatisfactory oil filter performance, oil-using component sticking, and high risk of wear in engines. Therefore, One aspect of this application provides a filtering device, comprising: An oil storage container, comprising a first oil storage chamber and a second oil storage chamber; Oil pump; The oil suction mechanism includes an oil inlet, a first oil suction port, and a second oil suction port. The oil inlet is connected to the oil inlet of the oil pump. The first oil suction port and the second oil suction port are respectively connected to the first oil storage chamber and the second oil storage chamber. The oil inlet communicates with either the first oil suction port or the second oil suction port so that the oil pump can draw oil from either the first oil storage chamber or the second oil storage chamber. The filter is connected to the oil outlet of the oil pump; The oil return mechanism is connected to the second oil storage chamber and the oil return port.

[0005] In some embodiments, the oil-absorbing mechanism includes: An oil pipeline, wherein the first end of the oil pipeline is configured as the oil outlet; A first three-way valve, wherein the first valve port of the first three-way valve is connected to the second end of the oil pipeline; The first oil suction pipe has a first end connected to the second valve port of the first three-way valve, and the second end of the first oil suction pipe is configured as the first oil suction port. The second oil suction pipe has its first end connected to the third valve port of the first three-way valve, and its second end configured as the second oil suction port.

[0006] In some embodiments, the oil return mechanism includes an oil return pipe, a first end of which is connected to the oil outlet of the filter, and a second end of which is connected to the second oil storage chamber.

[0007] In some embodiments, the oil return mechanism further includes a control valve disposed on the oil return pipe.

[0008] In some embodiments, the oil-absorbing mechanism includes: An oil pipeline, wherein the first end of the oil pipeline is configured as the oil outlet; A first three-way valve, wherein the first valve port of the first three-way valve is connected to the second end of the oil pipeline; The first oil suction pipe has a first end connected to the second valve port of the first three-way valve, and the second end of the first oil suction pipe is configured as the first oil suction port. A connecting pipe, the first end of which is connected to the third valve port of the first three-way valve; The second three-way valve, wherein the third valve port of the second three-way valve is connected to the second end of the connecting pipe; The oil return mechanism includes: The oil return pipe has its first end connected to the oil outlet of the filter and its second end connected to the first valve port of the second three-way valve. A reused pipe, the first end of which is connected to the second valve port of the second three-way valve, and the second end of which is configured as the second oil suction port.

[0009] In some embodiments, a liquid level sensor is provided in the second oil storage chamber.

[0010] In some embodiments, an overflow hole is provided between the first oil storage chamber and the second oil storage chamber.

[0011] Another aspect of the embodiments of this application also provides an engine, including: The engine block has a main oil passage; The filter device is described above, wherein the oil outlet of the filter is connected to the oil passage of the main unit.

[0012] In some embodiments, an oil pressure sensor is provided on the main engine oil passage.

[0013] In another aspect of this application, a vehicle is also provided, including the aforementioned engine. The embodiments of this application have at least the following beneficial effects: The filtration device, engine, and vehicle provided in this application embodiment include an oil storage container, an oil pump, an oil suction mechanism, a filter, and an oil return mechanism. The oil storage container has a first oil storage chamber and a second oil storage chamber. The oil suction mechanism has an oil inlet, a first oil suction port, and a second oil suction port. The oil inlet is connected to the oil inlet of the oil pump. The first and second oil suction ports are respectively connected to the first and second oil storage chambers. When the oil suction mechanism is working, the oil inlet communicates with either the first or second oil suction port, allowing the oil pump to draw oil from either the first or second oil storage chamber. The filter is connected to the oil outlet of the oil pump, and the oil return mechanism is connected to the second oil storage chamber and the oil return port.

[0014] When the oil flowability meets the preset requirements, the oil suction mechanism connects the oil pump and the first oil storage chamber. The oil pump draws the oil from the first oil storage chamber and delivers it to the filter for filtration, and then delivers the oil to the oil-using components. At the same time, some of the filtered oil can be delivered to the second oil storage chamber for storage through the oil return mechanism.

[0015] When the oil flow does not meet the preset requirements, the oil suction mechanism connects the oil pump and the second oil storage chamber. The oil pump draws the filtered oil stored in the second oil storage chamber and delivers the oil to the oil-using components through the bypass valve branch of the filter, so as to maintain the quality of the oil and reduce the risk of jamming and wear.

[0016] For operating conditions where the oil has poor fluidity due to low temperature, once the engine is running stably, the oil temperature rises and its fluidity improves. The oil suction mechanism can connect the oil pump to the first oil storage chamber. The oil pump draws the oil from the first oil storage chamber and delivers it to the filter for filtration, and then delivers the oil to the oil-using components. The partially filtered oil can be delivered to the second oil storage chamber for storage through the oil return mechanism. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the structure of the filtering device in an embodiment of this application is shown; Figure 2 A schematic diagram of another filtering device according to an embodiment of this application is shown.

[0019] Figure label: 1-Oil storage container, 1a-First oil storage chamber, 1b-Second oil storage chamber, 1c-Overflow hole; 2- Oil pump; 3-Oil suction mechanism, 3a-Oil inlet, 3b-First oil suction port, 3c-Second oil suction port, 31-Oil delivery pipe, 32-First three-way valve, 33-First oil suction pipe, 34-Second oil suction pipe, 35-Connecting pipe, 36-Second three-way valve; 4-Filter; 5-Return oil mechanism, 51-Return oil pipe, 52-Control valve, 53-Reuse pipe; 6-Main engine oil flow channel. Detailed Implementation

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

[0021] Furthermore, reference numerals and / or reference letters may be repeated in different examples in this application. Such repetition is for simplification and clarity purposes and does not in itself indicate a relationship between the various embodiments and / or settings discussed. In addition, this application provides examples of various specific processes and materials; however, those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0022] This application is described below with reference to the accompanying drawings and specific embodiments: The engine oil filter, located in the oil circulation path, is used to filter impurities in the oil, maintain oil quality, reduce engine wear and seizing risks, and extend engine life. However, under conditions such as low temperatures, the oil's fluidity is poor, preventing it from flowing smoothly through the filter. This causes oil pressure to rise, forcing the filter's bypass valve to open passively, allowing unfiltered oil to pass through. This results in unfiltered impurities in the oil, affecting oil quality, significantly increasing the risk of engine seizing and wear, and shortening engine life.

[0023] Therefore, embodiments of this application provide a filtration device, an engine, and a vehicle, aiming to solve, to a certain extent, the technical problems of poor filter performance, poor lubricating oil quality, and high risk of oil-using components sticking and wearing under working conditions with poor oil flow.

[0024] See Figure 1 and Figure 2In some embodiments, the filtration device adds an oil storage structure to the filter to store a portion of good quality oil when the oil viscosity is low and the flowability is good. When the flowability is poor, the stored good quality oil is used as a substitute for lubrication, thereby reducing the risk of oil-using parts sticking and wearing for a period of time. On the other hand, it can also realize temporary relief oil use, providing time for maintenance measures such as changing the oil or smoothly passing through the working conditions caused by temporary reversible factors such as cold starts, which lead to poor flowability. This systematically solves the technical problems of poor filter performance, poor lubricant quality, and high risk of oil-using parts sticking and wearing under such working conditions.

[0025] Specifically, the filtration device includes an oil storage container 1, an oil pump 2, an oil suction mechanism 3, a filter 4, and an oil return mechanism 5; the oil inlet of the oil pump 2 is connected to the oil storage container 1 through the oil suction mechanism 3, the filter 4 is connected to the oil outlet of the oil pump 2, and the oil return mechanism 3 connects the oil outlet of the filter 4 to the oil storage container 1.

[0026] The oil storage container 1 has two independent cavities, namely a first oil storage cavity 1a and a second oil storage cavity 1b, which respectively store the recycled engine oil and the engine oil filtered by the filter. Generally, the oil storage container 1 can also be directly set as part of the engine oil pan structure, and the first oil storage cavity 1a and the second oil storage cavity 1b are formed by structural design.

[0027] The oil pump 2 is an oil circulation power structure, which is installed on the oil flow channel to drive the oil circulation.

[0028] The oil suction mechanism 3 is an oil suction mechanism, which has an internal flow channel for oil to flow, so as to draw oil from the first oil storage chamber 1a or the second oil storage chamber 1b and supply it to the oil pump 2.

[0029] Specifically, the oil suction mechanism 3 may include an oil inlet 3a, a first oil suction port 3b, and a second oil suction port 3c. The oil inlet 3a is connected to the oil inlet of the oil pump 2, the first oil suction port 3b is connected to the first oil storage chamber 1a, and the second oil suction port 3c is connected to the second oil storage chamber 1b. When the oil suction mechanism 3 is working, the oil inlet 3a may be connected to either the first oil suction port 3b or the second oil suction port 3c, thereby connecting the oil inlet of the oil pump 2 to either the first oil storage chamber 1a or the second oil storage chamber 1b, respectively sucking up the circulated oil or the filtered oil.

[0030] The filter 4 is an oil filtration element connected to the oil outlet of the oil pump 3. It receives and filters the circulating oil to remove impurities and ensure oil quality. The filtered oil flows into the main oil passage through the filter outlet and then continues to be transported to various oil-using components through the oil circulation passage, maintaining lubrication quality. The filter 4 is equipped with a bypass valve as an emergency bypass structure to ensure the safety of the flow path.

[0031] The oil return mechanism 5 is connected to the oil outlet of the filter and the second oil storage chamber 1b, so that a portion of the filtered oil can be temporarily stored in the second oil storage chamber 1b. In low-temperature conditions, when the oil has insufficient fluidity or other factors, the oil suction mechanism 3 can draw in the temporarily stored filtered oil to achieve relief circulation lubrication for a period of time, thereby ensuring the oil safety of each oil-using component, reducing the risk of jamming and wear, and objectively improving the filtration performance of the filter.

[0032] It is worth noting that the oil output from the oil outlet of the filter 4 can be divided into two paths: one path flows to the downstream oil-using component, and the other path flows to the second oil storage chamber 1b. Correspondingly, the oil outlet of the filter 4 can be directly configured as two output branches, which are respectively connected to the oil circulation channel and the oil return mechanism 5.

[0033] See Figure 1 In some embodiments, the oil suction mechanism 2 may employ a combination of pipe fittings and functional valves to achieve switching of the oil suction channel.

[0034] Specifically, the oil suction mechanism 2 may include an oil delivery pipe 31, a first three-way valve 32, a first oil suction pipe 33, and a second oil suction pipe 34; the first end of the oil delivery pipe 31 is configured as the oil delivery port 3a; the first valve port of the first three-way valve 32 is connected to the second end of the oil delivery pipe 31; the first end of the first oil suction pipe 33 is connected to the second valve port of the first three-way valve 32, and the second end of the first oil suction pipe 33 is configured as the first oil suction port 3b; the first end of the second oil suction pipe 34 is connected to the third valve port of the first three-way valve 31, and the second end of the second oil suction pipe 34 is configured as the second oil suction port 3c.

[0035] Generally, the first oil suction port 3b of the first oil suction pipe 33 can be located at the lower part of the first oil storage chamber 1a, so as to stably draw in engine oil; similarly, the second oil suction port 3c of the second oil suction pipe 34 can be located at the lower part of the second oil storage chamber 1b, so as to stably draw in engine oil.

[0036] In some embodiments, the oil return mechanism 5 can be configured as a pipe to guide the flow; specifically, the oil return mechanism 5 may include an oil return pipe 51, the two ends of which are respectively connected to the oil outlet of the filter 4 and the second oil storage chamber 1b.

[0037] In some embodiments, in order to control the return oil pipe 51, a control valve 52 may be provided on the return oil pipe 51 to avoid interference with external flow channels.

[0038] See Figure 2 In some embodiments, in order to simplify the fluid movement structure of the oil storage container 1, especially the second oil storage chamber 1b, and to reduce the oil flow turbulence caused by the mutual interference of the oil flow in and out processes due to the multi-port structure, the circulation efficiency is improved.

[0039] Therefore, based on the aforementioned oil suction mechanism 3 and oil return mechanism 5, the oil suction mechanism 3 and oil return mechanism 5 can be partially integrated to reuse some of the structures. Specifically, the oil suction mechanism 3 includes an oil delivery pipe 31, a first three-way valve 32, a first oil suction pipe 33, a connecting pipe 35, and a second three-way valve 36; the oil return mechanism 5 includes an oil return pipe 51 and a reused pipe 53.

[0040] Wherein, the first end of the oil supply pipe 31 is set as the oil supply port 3a; the first valve port of the first three-way valve 32 is connected to the second end of the oil supply pipe 31; the first end of the first oil suction pipe 33 is connected to the second valve port of the first three-way valve 32, and the second end of the first oil suction pipe 33 is configured as the first oil suction port 3b; the first end of the connecting pipe 35 is connected to the third valve port of the first three-way valve 32; the third valve port of the second three-way valve 36 is connected to the second end of the connecting pipe 35; the first end of the return oil pipe 51 is connected to the oil outlet of the filter 4, and the second end of the return oil pipe 51 is connected to the first valve port of the second three-way valve 36; the first end of the reuse pipe 53 is connected to the second valve port of the second three-way valve 36, and the second end of the reuse pipe 53 is configured as the second oil suction port 3c, which can also be used as a return oil outlet.

[0041] Under conditions of good oil flow, the first three-way valve 32 opens the flow channel between the first oil reservoir 1a and the oil pump 2, and closes the connection between the oil pump 2 and the connecting pipe 35. This allows the oil pump 2 to draw oil from the first oil reservoir 1a and deliver it to the filter 4 for filtration, and then to various oil-using components. Alternatively, the second three-way valve 36 can also open the flow channel between the second oil reservoir 1b and the oil outlet of the filter 4, thereby storing some of the filtered oil in the second oil reservoir 1b. Of course, if the amount of oil in the second oil reservoir 1b exceeds the storage requirement, the second three-way valve 36 can remain closed, without receiving or storing the filtered oil.

[0042] When the engine oil has insufficient fluidity, the engine oil will trigger the bypass valve of the filter 4, opening the bypass branch. Correspondingly, the first three-way valve 32 closes the flow channel between the first oil reservoir 1a and the oil pump 2, and opens the flow channel between the oil pump 2 and the connecting pipe 35. The second three-way valve 36 opens the flow channel between the connecting pipe 35 and the second oil reservoir 1b, so that the oil pump 2 draws the engine oil in the second oil reservoir 1b and flows to each oil-using component through the bypass branch of the filter 4.

[0043] When the fluidity of the engine oil is restored, the first three-way valve 32 opens the flow channel between the first oil reservoir 1a and the oil pump 2, and closes the connection between the oil pump 2 and the connecting pipe 35. This allows the oil pump 2 to draw oil from the first oil reservoir 1a and deliver it to the filter 4 for filtration, and then to various oil-using components. The second three-way valve 36 can also open the flow channel between the second oil reservoir 1b and the oil outlet of the filter 4, thereby storing some of the filtered oil in the second oil reservoir 1b. Of course, if the amount of oil in the second oil reservoir 1b exceeds the storage requirement, the second three-way valve 36 can remain closed, without receiving or storing filtered oil.

[0044] In some embodiments, in order to accurately determine the amount of oil stored in the second oil storage chamber 1b, a level sensor such as a level gauge can be installed in the oil storage chamber 1b to monitor the oil level in real time. Once the oil level exceeds a preset value, the second three-way valve 36 can be controlled.

[0045] In some embodiments, an overflow hole 1c may be provided at a relatively high position between the first oil storage chamber 1a and the second oil storage chamber 1b to prevent excessive oil in the second oil storage chamber 1b.

[0046] In some embodiments, the oil storage container 1 may be sealed at its bottom to form two chambers, which serve as the chamber for filtering the oil and the chamber for filtering the oil, respectively.

[0047] In another aspect of this application, an engine is also provided, including an engine body and the filter device, wherein the oil outlet of the filter 4 is connected to the main oil passage 6 of the engine body.

[0048] In some embodiments, to promptly address the problem of insufficient oil flow, an alarm can be triggered quickly when the oil pressure in the main oil passage 6 rises, so as to switch the filtered oil flowing into the second oil storage chamber 1b to ensure the operational safety and reliability of the oil-using components.

[0049] In another aspect of this application, a vehicle is also provided, including the engine described above.

[0050] The embodiments of this application have at least the following beneficial effects: The filtration device, engine, and vehicle provided in this application embodiment include an oil storage container, an oil pump, an oil suction mechanism, a filter, and an oil return mechanism. The oil storage container has a first oil storage chamber and a second oil storage chamber. The oil suction mechanism has an oil inlet, a first oil suction port, and a second oil suction port. The oil inlet is connected to the oil inlet of the oil pump. The first and second oil suction ports are respectively connected to the first and second oil storage chambers. When the oil suction mechanism is working, the oil inlet communicates with either the first or second oil suction port, allowing the oil pump to draw oil from either the first or second oil storage chamber. The filter is connected to the oil outlet of the oil pump, and the oil return mechanism is connected to the second oil storage chamber and the oil return port.

[0051] When the oil flowability meets the preset requirements, the oil suction mechanism connects the oil pump and the first oil storage chamber. The oil pump draws the oil from the first oil storage chamber and delivers it to the filter for filtration, and then delivers the oil to the oil-using components. At the same time, some of the filtered oil can be delivered to the second oil storage chamber for storage through the oil return mechanism.

[0052] When the oil flow does not meet the preset requirements, the oil suction mechanism connects the oil pump and the second oil storage chamber. The oil pump draws the filtered oil stored in the second oil storage chamber and delivers the oil to the oil-using components through the bypass valve branch of the filter, so as to maintain the quality of the oil and reduce the risk of jamming and wear.

[0053] For operating conditions where the oil has poor fluidity due to low temperature, once the engine is running stably, the oil temperature rises and its fluidity improves. The oil suction mechanism can connect the oil pump to the first oil storage chamber. The oil pump draws the oil from the first oil storage chamber and delivers it to the filter for filtration, and then delivers the oil to the oil-using components. The partially filtered oil can be delivered to the second oil storage chamber for storage through the oil return mechanism.

[0054] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0055] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0056] It should be noted that all directional indications in the embodiments of this application are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indication will also change accordingly. In this application, unless otherwise explicitly specified and limited, the terms "connection" and "fixed" should be interpreted broadly. For example, "fixed" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction relationship between two components, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances. In addition, the descriptions involving "first," "second," etc., in this application are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first" or "second" may explicitly or implicitly include one or more of the aforementioned features. In the description of this application, "multiple" means two or more, unless otherwise explicitly and specifically limited.

[0057] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0058] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0059] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A filtration device, characterized in that, include: An oil storage container, comprising a first oil storage chamber and a second oil storage chamber; Oil pump; The oil suction mechanism includes an oil inlet, a first oil suction port, and a second oil suction port. The oil inlet is connected to the oil inlet of the oil pump. The first oil suction port and the second oil suction port are respectively connected to the first oil storage chamber and the second oil storage chamber. The oil inlet communicates with either the first oil suction port or the second oil suction port so that the oil pump can draw oil from either the first oil storage chamber or the second oil storage chamber. The filter is connected to the oil outlet of the oil pump; The oil return mechanism is connected to the second oil storage chamber and the oil return port.

2. The filtration device as described in claim 1, characterized in that, The oil suction mechanism includes: An oil pipeline, wherein the first end of the oil pipeline is configured as the oil outlet; A first three-way valve, wherein the first valve port of the first three-way valve is connected to the second end of the oil pipeline; The first oil suction pipe has a first end connected to the second valve port of the first three-way valve, and the second end of the first oil suction pipe is configured as the first oil suction port. The second oil suction pipe has its first end connected to the third valve port of the first three-way valve, and its second end configured as the second oil suction port.

3. The filtration device as described in claim 2, characterized in that, The oil return mechanism includes an oil return pipe, the first end of which is connected to the oil outlet of the filter, and the second end of which is connected to the second oil storage chamber.

4. The filtration device as described in claim 3, characterized in that, The oil return mechanism also includes a control valve, which is disposed on the oil return pipe.

5. The filtration device as claimed in claim 1, characterized in that, The oil suction mechanism includes: An oil pipeline, wherein the first end of the oil pipeline is configured as the oil outlet; A first three-way valve, wherein the first valve port of the first three-way valve is connected to the second end of the oil pipeline; The first oil suction pipe has a first end connected to the second valve port of the first three-way valve, and the second end of the first oil suction pipe is configured as the first oil suction port. A connecting pipe, the first end of which is connected to the third valve port of the first three-way valve; The second three-way valve, wherein the third valve port of the second three-way valve is connected to the second end of the connecting pipe; The oil return mechanism includes: The oil return pipe has its first end connected to the oil outlet of the filter and its second end connected to the first valve port of the second three-way valve. A reused pipe, the first end of which is connected to the second valve port of the second three-way valve, and the second end of which is configured as the second oil suction port.

6. The filtration device as claimed in claim 1, characterized in that, A liquid level sensor is installed in the second oil storage chamber.

7. The filtration device according to any one of claims 1 to 6, characterized in that, An overflow hole is provided between the first oil storage chamber and the second oil storage chamber.

8. An engine, characterized in that, include: The engine block has a main oil passage; The filtration device according to any one of claims 1 to 7, wherein the oil outlet of the filter is connected to the main engine oil passage.

9. The engine as claimed in claim 8, characterized in that, An oil pressure sensor is installed on the main engine oil passage.

10. A vehicle, characterized in that, Including the engine as described in claim 8 or 9.

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