Filter, filtering system, engine assembly and vehicle

Abstract

The utility model relates to a filter, a filtering system, an engine assembly and a vehicle. The filter comprises a shell and a filter element, a first input hole, a second input hole and a first output hole are formed in the shell, and a filtering cavity is formed in the shell; the filter element is arranged in the filter cavity and divides the filter cavity into a first chamber and a second chamber; the first input hole is suitable for enabling external fluid to enter the first cavity, and the external fluid flows to the second cavity after being filtered by the filter element; the first output hole is suitable for discharging the fluid in the second chamber out of the shell; and the second input hole is suitable for enabling the external fluid to enter the second cavity and flow to the first cavity through the filter element to clean the filter element, so that the filter element does not need to be taken out from the shell, and the cleaning efficiency of the filter element can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle filtering and relates to a filter, a filtering system, an engine assembly and a vehicle. Background Art

[0002] During the use of the filter, a lot of dirt will accumulate on the filter element. If it is not cleaned in time, it will affect the normal use of the filter.

[0003] In the prior art, when cleaning the dirt on the filter element, the filter element is first taken out from the filter housing and then cleaned. This filter element cleaning method is inefficient. Utility Model Content

[0004] Aiming at the problem of low cleaning efficiency of filter elements in related technologies, a filter, a filter system, an engine assembly and a vehicle are provided.

[0005] In order to solve the above technical problems, on the one hand, an embodiment of the present invention provides a filter, comprising a housing (1) and a filter element (2); the housing (1) is provided with a first input hole (11), a second input hole (12) and a first output hole (13), and the housing (1) is provided with a filter chamber (14); the filter element (2) is arranged in the filter chamber (14) and divides the filter chamber (14) into a first chamber (141) and a second chamber (142); the first input hole (11) is suitable for allowing external fluid to enter the first chamber (141) and flow to the second chamber (142) after being filtered by the filter element (2); the first output hole (13) is suitable for allowing fluid in the second chamber (142) to be discharged from the housing (1); the second input hole (12) is suitable for allowing external fluid to enter the second chamber (142) and flow to the first chamber (141) through the filter element (2) to clean the filter element (2).

[0006] Optionally, the filter is a gas filter.

[0007] Optionally, the housing (1) is further provided with a second output hole (15), and the second output hole (15) is suitable for allowing dirt in the first chamber (141) to be discharged from the housing (1).

[0008] Optionally, the opening of the second output hole (15) formed on the surface surrounding the first chamber (141) faces the filter element (2).

[0009] Optionally, the first chamber (141) and the second chamber (142) are arranged separately.

[0010] In order to solve the above technical problems, on the other hand, an embodiment of the present invention provides a filtration system, comprising a fluid input device (20) and a filter (10) as described above; the fluid input device (20) is connected to the second chamber (142) through the second input hole (12) and is used to pass fluid from the second input hole (12) into the second chamber (142).

[0011] Optionally, the filtration system further comprises a first control valve (60), wherein the first control valve (60) is adapted to open or close the second input hole (12).

[0012] Optionally, the filtration system further comprises a second control valve (70), wherein the second control valve (70) is adapted to open or close the first output hole (13).

[0013] Optionally, the housing (1) is further provided with a second output hole (15), the second output hole (15) being suitable for allowing dirt in the first chamber (141) to be discharged from the housing (1); the filtering system further comprises a third control valve (80), the third control valve (80) being suitable for opening or closing the second output hole (15).

[0014] Optionally, the filtration system further comprises a first detection device (50), wherein the first detection device (50) is used to detect fluid permeability between the first chamber (141) and the second chamber (142).

[0015] Optionally, the filter (10) is used to filter gas, and the filtering system further includes an outlet pipe (30), one end of the outlet pipe (30) is connected to the second chamber (142) through the first output hole (13); the first detection device (50) is connected to the other end of the outlet pipe (30) and is located inside the outlet pipe (30).

[0016] Optionally, the fluid input device (20) is a gas input device, used to introduce gas from the second input hole (12) into the second chamber (142).

[0017] Optionally, the fluid input device (20) includes an air pump (3) and an air storage tank (4); the air pump (3) is connected to the air storage tank (4) and is used to transport gas into the air storage tank (4); the air storage tank (4) is used to introduce gas from the second input hole (12) into the second chamber (142).

[0018] Optionally, the filtration system further comprises a pressure detector, which is installed in the air outlet pipe (30) and is used to detect the air pressure in the air outlet pipe (30).

[0019] In order to solve the above technical problems, on the other hand, an embodiment of the present invention provides an engine assembly, comprising an engine and any one of the above-mentioned filter systems (100);

[0020] The air inlet of the engine is connected to the first output hole (13), so that the gas in the second chamber (142) can flow from the first output hole (13) into the engine.

[0021] In order to solve the above technical problems, on the other hand, an embodiment of the present invention provides a vehicle, comprising the engine assembly as described above, or comprising any one of the filtering systems (100) described above.

[0022] Optionally, the first chamber (141) is located below the second chamber (142).

[0023] In the filter, filter system, engine assembly, and vehicle provided by the embodiments of the present invention, the filter element is adapted to filter fluid flowing from a first chamber to a second chamber. Thus, dirt in the fluid typically accumulates on the side of the filter element near the first chamber. To clean the dirt on the filter element, fluid can be introduced directly into the second chamber through the second input hole via a corresponding fluid input device. The fluid in the second chamber then flows through the channel on the filter element into the first chamber. During this process, the fluid can flush away dirt on the dirty surface of the filter element, thereby cleaning the filter element. That is, in this embodiment, when cleaning the filter element of the filter, there is no need to remove the filter element from the housing, thereby improving the efficiency of cleaning the filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic structural diagram of a filter provided by an embodiment of the present utility model;

[0025] Figure 2 This is a cross-sectional view of a filter provided by one embodiment of the present utility model;

[0026] Figure 3 This is a structural diagram of a filtration system provided by an embodiment of the present utility model;

[0027] Figure 4 It is a partial structural diagram of a fluid input device provided in one embodiment of the present utility model.

[0028] The reference numerals in the specification are as follows:

[0029] 100, filtration system; 10, filter; 20, fluid input device; 30, air outlet pipe; 40, air inlet pipe; 50, first detection device; 60, first control valve; 70, second control valve; 80, third control valve;

[0030] 1. Housing; 11. First input hole; 12. Second input hole; 13. First output hole; 14. Filter cavity; 141. First chamber; 142. Second chamber; 15. Second output hole; 16. First shell; 17. Second shell;

[0031] 2. Filter element;

[0032] 3. Air pump;

[0033] 4. Gas storage tank;

[0034] 5. Air pressure detection device. DETAILED DESCRIPTION

[0035] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0036] like Figure 1 and Figure 2 As shown, in one embodiment, the filter 10 includes a shell 1 and a filter element 2; a first input hole 11, a second input hole 12 and a first output hole 13 are provided on the shell 1, and a filter chamber 14 is provided in the shell 1; the filter element 2 is arranged in the filter chamber 14, and divides the filter chamber 14 into a first chamber 141 and a second chamber 142; the first input hole 11 is suitable for allowing external fluid to enter the first chamber 141, and flow to the second chamber 142 after being filtered by the filter element 2; the first output hole 13 is suitable for allowing the fluid in the second chamber 142 to be discharged from the shell 1; the second input hole 12 is suitable for allowing external fluid to enter the second chamber 142, and flow to the first chamber 141 through the filter element 2 to clean the filter element 2.

[0037] In this embodiment, the filter element 2 can filter the fluid flowing from the first chamber 141 to the second chamber 142. When using the filter 10 to filter the fluid, the fluid can be introduced into the first chamber 141 from the first input hole 11. Subsequently, the fluid will pass through the filter element 2 and flow into the second chamber 142, and finally flow out of the housing 1 from the first output hole 13.

[0038] When the filter element 2 filters the fluid, dirt in the fluid will adhere to the filter element 2, and the dirt will mainly adhere to the surface of the filter element 2 near the first chamber 141 (this surface is defined as the dirty surface of the filter element). Subsequently, when cleaning the filter element 2, fluid can be directly introduced into the second chamber 142 through the second input hole 12. The fluid will pass through the filter element 2 and flow into the first chamber 141. During this process, the fluid can flush away the dirt on the dirty surface of the filter element 2, thereby cleaning the filter element 2. In this embodiment, when cleaning the filter element 2 of the filter 10, there is no need to remove the filter element 2 from the housing 1, thereby improving the cleaning efficiency of the filter element 2.

[0039] In addition, when cleaning the dirt on the filter element 2, it is not necessary to introduce fluid into the first chamber 141 from the first input hole 11. In addition, the above-mentioned "external fluid" refers to the fluid outside the housing 1.

[0040] It should be understood that the first input hole 11, the second input hole 12, and the first output hole 13 all extend through the inner surface and the outer surface of the housing 1; the inner surface of the housing 1 is the surface of the housing 1 used to enclose and form the filter cavity 14. The inner surface of the housing 1 is defined as comprising a first region and a second region, wherein the first region is used to enclose and form the first chamber, and the second region is used to enclose and form the second chamber. The first input hole 11 is formed as an opening in the first region, and the second input hole 12 and the first output hole 13 are both formed as openings in the second region.

[0041] Furthermore, the second chamber 142 and the first chamber 141 are connected via a channel on the filter element 2. The surface of the filter element 2 closest to the second chamber 142 is defined as the clean side, while the dirty side and the clean side are the two opposite surfaces of the filter element 2. The channel on the filter element 2 runs from the dirty side to the clean side. When fluid flows from the second chamber 142 to the first chamber 141, it is also filtered by the filter element 2.

[0042] “The filter element 2 is located in the filter cavity 14 ” may mean that the filter element 2 is completely disposed in the filter cavity 14 , or may mean that only a portion of the filter element 2 is disposed in the filter cavity 14 .

[0043] In one embodiment, the filter 10 is a gas filter. In this case, the filter 10 is used to filter gas.

[0044] In one application scenario, the filter chamber 14 can be used to filter the air input into the engine. At this time, the air intake of the engine can be connected to the first output hole 13, and the gas in the second chamber 142 can flow out of the filter 10 from the first output hole 13 and finally flow into the engine.

[0045] like Figure 2As shown, in one embodiment, the first chamber 141 and the second chamber 142 are separated, that is, the first chamber 141 does not surround the second chamber 142, and the second chamber 142 does not surround the first chamber 141. In one application scenario, the first chamber 141 and the second chamber 142 can be arranged in sequence along the vertical direction, and the first chamber 141 can be located below the second chamber 142. Of course, in other application scenarios, the arrangement direction of the first chamber 141 and the second chamber 142 can also be set in other ways, for example, they can also be arranged in sequence along the left-right direction.

[0046] like Figure 1 and Figure 2 As shown, in one embodiment, the housing 1 is further provided with a second outlet 15, which is adapted to allow dirt in the first chamber 141 to be discharged from the housing 1. Specifically, the second outlet 15 is formed with an opening in the first region, so that dirt on the filter element 2 can be discharged from the housing 1 through the second outlet 15 after falling off the dirty surface.

[0047] In one embodiment, the second outlet opening 15 formed on the surface surrounding the first chamber 141 opens toward the filter element 2. This arrangement facilitates the flow of dirt from the dirty surface into the second outlet opening 15 and, in turn, facilitates the discharge of the dirt from the housing 1. The "surface surrounding the first chamber 141" refers to the first region of the inner surface of the housing 1.

[0048] Additionally, "the opening of the second output hole 15 formed on the surface enclosing the first chamber 141 (defined as the first opening) faces the filter element 2" may mean that, in an orthographic projection onto a plane perpendicular to the arrangement direction of the first chamber 141 and the second chamber 142 (defined as the first plane), the orthographic projection of the first opening at least partially overlaps with the orthographic projection of the filter element 2. Preferably, in the orthographic projection onto the first plane, the orthographic projection of the first opening is completely within the orthographic projection of the filter element 2.

[0049] In one embodiment, the second output hole 15 may be a straight hole, and the axis of the second output hole 15 may be parallel to the arrangement direction of the first chamber 141 and the second chamber 142 .

[0050] like Figure 1 and Figure 2 As shown, in one embodiment, the housing 1 includes a first shell 16 and a second shell 17, which are detachably connected; the first input hole 11 is arranged on the first shell 16, and the second input hole 12 and the first output hole 13 are both arranged on the second shell 17.

[0051] The first shell 16 and the second shell 17 can enclose and form the filter cavity 14. Moreover, the first input hole 11, the second input hole 12 and the first output hole 13 are respectively provided on the two shells, which facilitates the production and preparation of the housing 1.

[0052] In addition, the first shell 16 and the second shell 17 may be connected together by connecting members such as bolts, thereby achieving a detachable connection between the two.

[0053] When the second output hole 15 is provided on the housing 1 , the second output hole 15 may be provided on the first shell 16 .

[0054] In one embodiment, the filter element 2 is sandwiched between the first housing 16 and the second housing 17. That is, the filter element 2 is held by the first housing 16 and the second housing 17. During assembly, when the first housing 16 and the second housing 17 are connected together, the filter element 2 can be installed on the housing 1, thereby improving the assembly efficiency of the filter 10. In addition, in this embodiment, the first chamber 141 is located within the first housing 16, and the second chamber 142 is located within the second housing 17.

[0055] In one embodiment, the filter element 2 includes filter paper and polyurethane adhesive (PU resin). The dirty side, clean side, and channel of the filter element 2 are all located on the filter paper. The PU adhesive is disposed around the filter paper and sandwiched between the first shell 16 and the second shell 17. Alternatively, the filter paper may be sandwiched between the first shell 16 and the second shell 17.

[0056] like Figure 3 As shown, in one embodiment, the filtration system 100 includes a fluid input device 20 and the filter 10 described in any one of the above embodiments; the fluid input device 20 is connected to the second chamber 142 through the second input hole 12, and is used to pass fluid from the second input hole 12 into the second chamber 142.

[0057] In one embodiment, the fluid input device 20 is a gas input device for introducing gas into the second chamber 142 from the second input hole 12 .

[0058] At this time, the filter 10 can be used to filter gas, or the filter 10 can also be used to filter liquid.

[0059] like Figure 3 and Figure 4 As shown, in one embodiment, the fluid input device 20 includes an air pump 3 and an air tank 4. The air pump 3 is connected to the air tank 4 for delivering gas into the air tank 4. The air tank 4 is used to pass gas from the second input port 12 to the second chamber 142. This arrangement allows gas to be stored in the air tank 4 in advance, facilitating the use of the fluid input device 20.

[0060] It should be understood that the air outlet of the air pump 3 is connected to the air inlet of the air tank 4, and the two can be connected directly or through corresponding pipes. In addition, the air inlet of the air pump 3 is also equipped with a corresponding filtering device, which is used to filter the gas entering the air pump 3. In this way, the gas entering the air tank 4 from the air outlet of the air pump 3 is clean gas. In this case, the air pump 3 can be an air pump with automatic filtering function.

[0061] like Figure 3 and Figure 4 As shown, the fluid input device 20 further includes an air pressure detection device 5 , which is used to detect the gas pressure in the gas storage tank 4 to improve the safety performance of the fluid input device 20 .

[0062] In addition, the connection between the air pump 3 and the air tank 4 and the connection between the air pressure detection device 5 and the air tank 4 can both be existing technologies.

[0063] like Figure 1 and Figure 3 As shown, in one embodiment, when the filter 10 is used to filter gas, that is, when the filter 10 is a gas filter, the filter system 100 further includes an outlet pipe 30, one end of which communicates with the second chamber 142 through the first output hole 13. Specifically, one end of the outlet pipe 30 is connected to the housing 1 and communicates with the second chamber 142 through the first output hole 13. In addition, the outlet pipe 30 is actually connected to the second housing 17.

[0064] In addition, the other end of the gas outlet pipe 30 may be in communication with a target object so that the gas filtered by the filter 10 can flow to the target object, wherein the target object may be an engine.

[0065] like Figure 1 and Figure 3 As shown, in one embodiment, the filter system 100 further includes an air inlet pipe 40, one end of which communicates with the first chamber 141 via the first input hole 11. Specifically, the air inlet pipe 40 is connected to the housing 1 and communicates with the first chamber 141 via the first input hole 11. Furthermore, the air inlet pipe 40 is actually connected to the first housing 16. During use, air outside the filter 10 can first enter the air inlet pipe 40 and then enter the first chamber 141 via the first input hole 11.

[0066] like Figure 3As shown, in one embodiment, the filtration system 100 further includes a first detection device 50, which is used to detect the fluid permeability between the first chamber 141 and the second chamber 142. The fluid permeability between the first chamber 141 and the second chamber 142 can be regarded as the fluid permeability of the filter element 2, and the blockage condition of the filter element 2 can be judged. When the fluid permeability between the first chamber 141 and the second chamber 142 is less than a predetermined value, it means that the blockage condition of the filter element 2 is more serious at this time, and the dirt on the filter element 2 needs to be cleaned. When the fluid permeability between the first chamber 141 and the second chamber 142 is greater than or equal to a predetermined value, it means that the filter element 2 has good passing performance, and the dirt on the filter element 2 does not need to be cleaned.

[0067] After assembly, the first detection device 50 can be installed in the first chamber 141 or in the second chamber 142. Of course, the first detection device 50 can also be installed in a pipe connecting the first chamber 141 or the second chamber 142. For example, in the embodiment where the filter 10 is used to filter gas and the filter system 100 also includes an outlet pipe 30, the first detection device 50 can be installed in the outlet pipe 30. Moreover, when the first detection device 50 is located in the outlet pipe 30, the first detection device 50 can be connected to the other end of the outlet pipe 30, which is the end connected to the target object.

[0068] In one embodiment, the first detection device 50 includes a pressure detector that can detect the fluid pressure within the filter cavity 14. The pressure detector can be of a conventional design. When the fluid pressure within the filter cavity 14 is less than a predetermined pressure, it indicates that the fluid permeability between the first chamber 141 and the second chamber 142 is less than a predetermined value. When the fluid pressure within the receiving chamber is greater than or equal to the predetermined pressure, it indicates that the fluid permeability between the first chamber 141 and the second chamber 142 is greater than or equal to the predetermined value.

[0069] In addition, in the embodiment where the filter 10 is used to filter gas and the filter system 100 further includes an outlet pipe 30 , a pressure detector may be installed in the outlet pipe 30 to detect the air pressure in the outlet pipe 30 , which can further improve the detection effect.

[0070] like Figure 2 As shown, in one embodiment, the filter system 100 further includes a first control valve 60 , which is adapted to open or close the second input hole 12 .

[0071] When the first control valve 60 opens the second input hole 12, the fluid outside the shell 1 can flow into the second chamber 142 from the second input hole 12; when the first control valve 60 closes the second input hole 12, the fluid outside the shell 1 can be prevented from flowing into the second chamber 142 from the second input hole 12.

[0072] Specifically, when the first control valve 60 opens the second input hole 12, the fluid input device 20 can flow fluid from the second input hole 12 into the second chamber 142. When the first control valve 60 closes the second input hole 12, the fluid input device 20 cannot flow fluid from the second input hole 12 into the second chamber 142. In this case, the fluid input device 20 is connected to the first control valve 60.

[0073] When the fluid input device 20 includes an air pump 3 and an air tank 4, the air tank 4 is connected to a first control valve 60, so that the first control valve 60 controls the connection and disconnection between the air outlet of the air tank 4 and the filter chamber 14. When the first control valve 60 opens the second input hole 12, the air outlet of the air tank 4 and the housing 1 are connected, allowing the gas in the air tank 4 to flow into the second chamber 142 of the housing 1. When the first control valve 60 closes the second input hole 12, the air outlet of the air tank 4 and the housing 1 are disconnected, preventing the gas in the air tank 4 from flowing into the second chamber 142 of the housing 1.

[0074] In addition, when the filter element 2 is used to filter the fluid, the first control valve 60 can close the second input hole 12; when cleaning the dirt on the filter element 2, the first control valve 60 can be controlled to open the second input hole 12.

[0075] In one embodiment, the first control valve 60 may be an on-off valve. Of course, in other embodiments, the first control valve 60 may also be another valve capable of opening or closing the hole, such as a reversing valve. The first control valve 60 is a conventional design and will not be described in detail in this embodiment.

[0076] The first control valve 60 is connected to the housing 1. Specifically, the first control valve 60 can be directly connected to the housing 1 (refer to Figure 2 Alternatively, the first control valve 60 may be connected to the housing 1 via a corresponding pipeline (see Figure 3 In addition, the first control valve 60 can be arranged inside the housing 1 (ie, inside the filter chamber 14 ), or outside the housing 1 (ie, outside the filter chamber 14 ).

[0077] like Figure 2 As shown, in one embodiment, the filter system 100 further includes a second control valve 70 , which is adapted to open or close the first output hole 13 .

[0078] When the second control valve 70 opens the first output hole 13 , the fluid in the second chamber 142 can flow out of the housing 1 from the first output hole 13 ; when the second control valve 70 closes the first output hole 13 , the fluid in the second chamber 142 can be prevented from flowing out of the housing 1 from the first output hole 13 .

[0079] When the filter element 2 is filtering fluid, the second control valve 70 can open the first output hole 13, so that the fluid in the second chamber 142 flows out of the housing 1 through the first output hole 13. When cleaning dirt on the filter element 2, the second control valve 70 can close the first output hole 13. This can prevent the fluid in the second chamber 142 from flowing out of the housing 1 through the first output hole 13, increase the pressure in the second chamber 142, and thereby improve the cleaning effect of dirt on the filter element 2.

[0080] In one embodiment, the second control valve 70 may be an on-off valve. Of course, in other embodiments, the second control valve 70 may also be another valve capable of opening or closing the hole, such as a reversing valve. The second control valve 70 is a conventional design and will not be described in detail in this embodiment. Furthermore, the first control valve 60 and the second control valve 70 may be identical.

[0081] In one embodiment, the second control valve 70 is connected to the housing 1. Specifically, the second control valve 70 can be directly connected to the housing 1, or the second control valve 70 can be connected to the housing 1 through corresponding pipes. In addition, the second control valve 70 can be disposed inside the housing 1 (i.e., inside the filter chamber 14) or outside the housing 1 (i.e., outside the filter chamber 14).

[0082] In a scenario where the filter 10 is used to filter air input into the engine, when the second control valve 70 opens the first output hole 13, the gas in the second chamber 142 can enter the engine from the first output hole 13; when the second control valve 70 closes the first output hole 13, the gas in the second chamber 142 cannot enter the engine from the first output hole 13.

[0083] like Figure 2 As shown, in one embodiment, when the housing 1 is provided with a second output hole 15 , the filter system 100 further includes a third control valve 80 , which is suitable for opening or closing the second output hole 15 .

[0084] When the filter element 2 is filtering fluid, the third control valve 80 can close the second output hole 15 to prevent the fluid in the first chamber 141 from flowing out of the housing 1 through the second output hole 15. When the filter element 2 is being cleaned, the third control valve 80 can open the second output hole 15 to allow dirt removed from the filter element 2 to be discharged from the housing 1 through the second output hole 15.

[0085] In one embodiment, the third control valve 80 may also be an on-off valve or a reversing valve. The third control valve 80 may be an umbrella valve. Of course, in other embodiments, the third control valve 80 and the first control valve 60 may also be the same.

[0086] In one embodiment, the third control valve 80 is connected to the housing 1. Specifically, the third control valve 80 may be directly connected to the housing 1, or the third control valve 80 may be connected to the housing 1 via corresponding pipes. Furthermore, the second control valve 70 may be disposed within the housing 1 (i.e., within the filter chamber 14) or outside the housing 1 (i.e., outside the filter chamber 14).

[0087] It should be noted that the filtration system 100 also includes a corresponding control device, which is electrically connected to each control valve, the air pump 3, the first detection device 50, and the air pressure detection device 5, and is used to control the operation of each control valve and the air pump 3. Alternatively, the control device can be independent of the filtration system 100 and not be part of the filtration system 100. When the filtration system 100 is used in a vehicle, the control device can be the vehicle's onboard computer.

[0088] An embodiment of the present invention also provides an engine assembly, which includes an engine and the filter system 100 described in any one of the above embodiments; the air inlet of the engine is connected to the first output hole 13, so that the gas in the second chamber 142 can flow from the first output hole 13 into the engine.

[0089] An embodiment of the present invention further provides a vehicle, which includes the above-mentioned engine assembly, or the filtering system 100 described in any one of the above-mentioned embodiments of the vehicle.

[0090] When the filter system 100 is applied to a vehicle, the first chamber 141 may be located below the second chamber 142 .

[0091] In addition, when a vehicle includes the above-mentioned engine assembly, the air intake of the engine is connected to the housing 1 of the filter 10 through the first output hole 13, that is, the air intake of the engine is connected to the filter chamber 14 through the first output hole 13. The vehicle can be a passenger off-road vehicle.

[0092] During operation, the filter 10 is used to filter the gas entering the engine. That is, in this embodiment, the filter chamber 14 is a gas filter 10, in which case the fluid input device 20 is also a gas input device, and the filter system 100 is a backwash filter system. Its working mode can be:

[0093] When dirt such as sand accumulates on the dirty surface of filter element 2, intake system resistance increases. When this dirt accumulates to a certain level, the air pressure detected by first detection device 50 falls below a predetermined value. At this point, the onboard computer alerts the driver that the intake system is severely clogged and reminds them to stop and clean the vehicle. Specifically, this can be done through voice or text notifications, and can be repeated over 24 hours.

[0094] Manually pressing the backflush button activates the backflush function for filter 10. Furthermore, upon receiving a driver's manual request to activate the backflush function for filter 10, the onboard computer first checks the vehicle's status to determine whether it meets the requirements for enabling the backflush function. If the vehicle meets the requirements for enabling the backflush function, the vehicle is powered on, in P gear, and with the engine off.

[0095] When the vehicle meets the requirements for starting the back-blowing function, the on-board computer controls the second control valve 70 to operate to close the first air outlet to prevent the back-blowing air flow from escaping from the air filter outlet.

[0096] At the same time, the on-board computer also uses the air pressure detection device 5 to detect the gas pressure in the air tank 4 to determine whether it has reached a predetermined pressure, which may be 1 MPa, for example. If it has not reached the predetermined pressure, the air pump 3 is activated to supply air to the air tank 4. Once the predetermined pressure is reached, the air pump 3 is stopped. If the predetermined pressure is reached, the second control valve 70 is activated to open the second input port 12.

[0097] During operation, the backflush time can be controlled by the time the first control valve 60 opens the second input port 12. Furthermore, when the first control valve 60 is controlled to open the second input port 12, the third control valve 80 can also be controlled to open the second output port 15, allowing dirt to be discharged from the filter 10 through the second output port 15.

[0098] When the backflush reaches a predetermined duration (e.g., 1 minute, adjustable as needed), the blowback ends. At this point, the first control valve 60 is controlled to close the second input port 12, the second control valve 70 is controlled to open the first output port 13, and the third control valve 80 is controlled to close the second output port 15. Finally, the on-board computer alerts the driver that the backflush has ended and the vehicle can be used normally. The various technical features of the above-described embodiments may be combined in any manner. For the sake of brevity, not all possible combinations of the various technical features in the above-described embodiments are described. However, as long as these combinations of technical features do not conflict, they should be considered within the scope of this specification.

[0099] It should be understood that the above-mentioned related designs can also be replaced by other methods, such as:

[0100] In other embodiments, the first chamber 141 may surround the second chamber 142. In this case, the first chamber 141 is a closed-loop space that surrounds the outside of the second chamber 142. Alternatively, the second chamber 142 may surround the first chamber 141. In this case, the second chamber 142 is a closed-loop space that surrounds the outside of the first chamber 141. In this embodiment, the filter element 2 may be a cylindrical structure, such as a round cylinder or a square cylinder.

[0101] In other embodiments, the first detection device 50 may include a flow detector that can detect the fluid flow rate within the filter chamber 14. The flow detector may be of a conventional design. When the fluid flow rate within the filter chamber 14 is less than a predetermined flow rate, it indicates that the fluid permeability between the first chamber 141 and the second chamber 142 is less than a predetermined value. When the fluid flow rate within the filter chamber 14 is greater than or equal to the predetermined flow rate, it indicates that the fluid permeability between the first chamber 141 and the second chamber 142 is greater than or equal to the predetermined value. Alternatively, the first detection device 50 may include both the aforementioned flow detector and the aforementioned pressure detector.

[0102] In other embodiments, when a vehicle includes the above-mentioned filter system 100 , the filter system 100 may also be used to filter the air entering the air conditioner.

[0103] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A filter, characterized in that: It comprises a housing (1) and a filter element (2); The housing (1) is provided with a first input hole (11), a second input hole (12) and a first output hole (13), and a filter cavity (14) is provided inside the housing (1); The filter element (2) is arranged in the filter cavity (14), and divides the filter cavity (14) into a first chamber (141) and a second chamber (142); The first input hole (11) is suitable for allowing external fluid to enter the first chamber (141) and flow into the second chamber (142) after being filtered by the filter element (2); The first output hole (13) is suitable for allowing the fluid in the second chamber (142) to be discharged from the housing (1); The second input hole (12) is suitable for allowing external fluid to enter the second chamber (142) and flow through the filter element (2) to the first chamber (141) to clean the filter element (2).

2. The filter according to claim 1, characterized in that The filter is a gas filter.

3. The filter according to claim 1, characterized in that The housing (1) is further provided with a second output hole (15), and the second output hole (15) is suitable for allowing dirt in the first chamber (141) to be discharged from the housing (1).

4. The filter according to claim 3, characterized in that The opening of the second output hole (15) formed on the surface surrounding the first chamber (141) faces the filter element (2).

5. The filter according to claim 1, characterized in that The first chamber (141) and the second chamber (142) are arranged separately.

6. A filtration system, characterized in that: Comprising a fluid input device (20) and a filter (10) according to any one of claims 1 to 5; The fluid input device (20) is connected to the second chamber (142) through the second input hole (12), and is used to pass fluid from the second input hole (12) into the second chamber (142).

7. The filtration system according to claim 6, characterized in that The filtering system further comprises a first control valve (60), wherein the first control valve (60) is adapted to open or close the second input hole (12).

8. The filtration system according to claim 6, characterized in that The filtering system further comprises a second control valve (70), wherein the second control valve (70) is adapted to open or close the first output hole (13).

9. The filtration system according to claim 6, characterized in that The housing (1) is further provided with a second output hole (15), and the second output hole (15) is suitable for allowing dirt in the first chamber (141) to be discharged from the housing (1); The filtering system further comprises a third control valve (80), wherein the third control valve (80) is adapted to open or close the second output hole (15).

10. The filtration system according to claim 6, characterized in that The filtration system further comprises a first detection device (50), wherein the first detection device (50) is used to detect fluid permeability between the first chamber (141) and the second chamber (142).

11. The filtration system according to claim 10, characterized in that The filter (10) is used to filter gas, and the filtering system further comprises an outlet pipe (30), one end of the outlet pipe (30) being connected to the second chamber (142) through the first output hole (13); The first detection device (50) is connected to the other end of the air outlet pipe (30) and is located inside the air outlet pipe (30).

12. The filtration system according to claim 6, characterized in that The fluid input device (20) is a gas input device, used for introducing gas from the second input hole (12) into the second chamber (142).

13. The filtration system according to claim 12, wherein: The fluid input device (20) includes an air pump (3) and an air storage tank (4); The air pump (3) is connected to the gas storage tank (4) and is used to transport gas into the gas storage tank (4); The gas storage tank (4) is used to introduce gas into the second chamber (142) from the second input hole (12).

14. The filtration system according to claim 11, wherein: The filtration system further comprises a pressure detector, which is installed in the air outlet pipe (30) and is used to detect the air pressure in the air outlet pipe (30).

15. An engine assembly, characterized in that: comprising an engine and a filtration system (100) according to any one of claims 6 to 14; The air inlet of the engine is connected to the first output hole (13), so that the gas in the second chamber (142) can flow from the first output hole (13) into the engine.

16. A vehicle, characterized in that: An engine assembly comprising the engine assembly according to claim 15, or a filter system (100) comprising any one of claims 6 to 14.

17. The vehicle according to claim 16, characterized in that The first chamber (141) is located below the second chamber (142).

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