CN114962089A - Air filter structure with uniform air inlet and adjustable air inlet amount and air inlet adjusting method thereof - Google Patents
Air filter structure with uniform air inlet and adjustable air inlet amount and air inlet adjusting method thereof Download PDFInfo
- Publication number
- CN114962089A CN114962089A CN202210470086.9A CN202210470086A CN114962089A CN 114962089 A CN114962089 A CN 114962089A CN 202210470086 A CN202210470086 A CN 202210470086A CN 114962089 A CN114962089 A CN 114962089A
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- air
- plate
- spoiler
- air inlet
- air filter
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/02—Air cleaners
- F02M35/0201—Housings; Casings; Frame constructions; Lids; Manufacturing or assembling thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/02—Air cleaners
- F02M35/0201—Housings; Casings; Frame constructions; Lids; Manufacturing or assembling thereof
- F02M35/0204—Housings; Casings; Frame constructions; Lids; Manufacturing or assembling thereof for connecting or joining to other devices, e.g. pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/02—Air cleaners
- F02M35/0201—Housings; Casings; Frame constructions; Lids; Manufacturing or assembling thereof
- F02M35/0205—Details, e.g. sensors or measuring devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/02—Air cleaners
- F02M35/0201—Housings; Casings; Frame constructions; Lids; Manufacturing or assembling thereof
- F02M35/0209—Housings; Casings; Frame constructions; Lids; Manufacturing or assembling thereof comprising flexible, resilient, movable or rotatable elements, e.g. with vibrating or contracting movements; Springs; Valves; Flaps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/02—Air cleaners
- F02M35/0201—Housings; Casings; Frame constructions; Lids; Manufacturing or assembling thereof
- F02M35/021—Arrangements of air flow meters in or on air cleaner housings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention relates to an air filter structure with uniform air inlet and adjustable air inlet amount and an air inlet adjusting method thereof, which comprise an air filter shell with a hollow interior, wherein an air inlet pipe and an air outlet pipe which are communicated with the interior of the air filter shell are fixedly connected to the air filter shell, a flow guide structure used for reducing air inlet resistance and enabling air inlet to be uniformly distributed is arranged in the air filter shell, the air filter shell comprises a flow guide plate and a flow disturbing sheet, the flow guide plate is fixed in the air filter shell and arranged in front of the air outlet pipe along the air inlet direction, the flow disturbing sheet is arranged in the air outlet pipe, and a driving mechanism used for driving the flow disturbing sheet to rotate around a rotating shaft is fixed to the air filter shell. The air filter designed by the invention has a simple air inlet structure and is easy to realize. Can design the repacking on current empty straining, the practicality is strong, and the repacking cost is low.
Description
Technical Field
The invention relates to the technical field of vehicle air inlet systems, in particular to an air filter structure with uniform air inlet and adjustable air inlet amount and an air inlet adjusting method thereof.
Background
The air filter is an important component of an air inlet system of the engine and is used for filtering impurities in air, preventing dust, water, snow and other particles from entering a combustion chamber of the engine and providing dry and clean air for the engine. Along with the technical upgrade of the six engines in China, an air flow meter is additionally arranged at an air filtering air port, the requirement on the calibration precision of the air flow meter arranged behind the air filter is strict, and a higher requirement is provided for the air inlet uniformity of clean air entering the air flow meter through the air filtering air port. The existing air filter has the following problems: 1. after air is filtered by the air filter, clean air directly enters the air flow meter through the air outlet pipe after air filtering, and the problems of poor air inlet uniformity and large air inlet resistance exist; 2. the problem of high cost of an air inlet structure exists by adding the air inlet structure in a bleed air pipe of the air flow meter to optimize air inlet uniformity.
Disclosure of Invention
The invention aims to solve the defects of the background technology and provide an air filter structure which can effectively improve the uniformity of air inlet, has low cost and can adjust the air inlet amount and an air inlet adjusting method thereof. The invention is described by the angle of an engine air inlet system for air inlet and exhaust, and the air filter structure is a part of the engine air inlet system, so that all air passing through the air filter structure and the air flow meter is air inlet.
In order to achieve the purpose, the air filter structure with uniform air inlet and adjustable air inflow comprises an air filter shell with a hollow interior, wherein an air inlet pipe and an air outlet pipe communicated with the interior of the air filter shell are fixedly connected to the air filter shell, and the air filter structure is characterized in that: be provided with in the air filter casing and be used for reducing the resistance of admitting air, make the even water conservancy diversion structure of the distribution of admitting air, it is including being fixed in the air filter casing, along the direction of admitting air arrange in the guide plate in outlet duct the place ahead with arrange in spoiler in the outlet duct, be fixed with on the air filter casing and be used for the drive spoiler revolutes pivoted actuating mechanism.
Furthermore, one end of the guide plate is fixed on the inner surface of the top of the air filter shell, the other end of the guide plate is fixed on the inner surface of the upper part of the air outlet pipe, and a closed cavity is formed between the upper surface of the guide plate and the inner surface of the upper part of the air filter shell.
Furthermore, the flow guide plate comprises a flow guide side plate and a flow guide top plate which is fixedly connected to the top of the flow guide side plate and is in an integral structure with the flow guide side plate, one end of the flow guide side plate is fixedly connected with a buckle plate which is in an integral structure with the flow guide side plate, and the bottom of the flow guide side plate is fixedly connected with a barb plate which is in an integral structure with the flow guide side plate; the upper inner surface of the air filter shell is provided with a buckle hole matched with the buckle plate and a barb plate clamping groove matched with the barb plate.
Furthermore, the connection part of the flow guide top plate and the flow guide side plate is an arc surface, and the degree of a fillet corresponding to the arc surface is 95-105 degrees.
Furthermore, the middle part of one end of the flow guide side plate, which is close to the air outlet pipe, is an inwards concave arc groove surface.
Furthermore, at least two spoilers are arranged in the air outlet pipe side by side.
Furthermore, the spoiler is coaxially fixed on the rotating shaft, two ends of the rotating shaft respectively penetrate through the upper side end face and the lower side end face of the spoiler, the upper side end face and the lower side end face of the inner surface of the air outlet pipe are respectively provided with at least two rotating shaft mounting holes matched with the rotating shaft side by side, and the rotating shaft is rotatably arranged in the rotating shaft mounting holes.
Further, the spoiler is an arc-shaped plate, the arc surface length of the arc-shaped plate is 18-22mm, and the central angle of the arc-shaped plate is 10-20 degrees.
Furthermore, the distance between the spoiler and the mouth surface of the air outlet pipe is 40-50 cm.
Still further, an air intake adjusting method based on the air filter structure with uniform air intake and adjustable air intake amount comprises the following steps: collecting an opening signal of a throttle valve, judging the opening of the current throttle valve, controlling the driving mechanism to drive the spoiler to rotate when the collected current throttle valve opening is 25-90 degrees, enabling the upper surface of the spoiler to be parallel to the axial direction of the air outlet pipe, controlling the driving mechanism to drive the spoiler to rotate when the collected current throttle valve opening is 11-24 degrees, enabling the angle formed by the upper surface of the spoiler and the axial direction of the air outlet pipe to be 30 degrees, and controlling the driving mechanism to drive the spoiler to rotate when the collected current throttle valve opening is 0-10 degrees, and enabling the angle formed by the upper surface of the spoiler and the axial direction of the air outlet pipe to be 60 degrees.
The invention has the beneficial effects that: according to the invention, the guide plates are arranged at the air filter shell and the air outlet pipe, and are used for guiding the air flow, so that the guide plates can prevent the high-speed air flow from being intensively blown at the right-angle turn of the upper shell of the air filter to form a vortex, thereby reducing the air inlet resistance, and enabling the air flow to smoothly pass through the air filter and enter the air flow meter. Through the structure of the spoiler, high-speed airflow is uniformly distributed when passing through the spoiler, and then enters the air flow meter after passing through the air filtering air pipe more uniformly at a better angle. The opening degree signal of an engine throttle valve is collected, a driving motor and a reduction gear are added to control the rotating angle of a spoiler, and the air inflow of an air flow meter is controlled. The air filter designed by the invention has a simple air inlet structure and is easy to realize. Can design the repacking on current empty straining, the practicality is strong, and the repacking cost is low.
Drawings
FIG. 1 is an assembled perspective view of an air filter and air flow meter of the present invention;
FIG. 2 is a perspective view of the hollow filter structure of the present invention;
FIG. 3 is a perspective view of the baffle of the present invention assembled within the upper housing of the air filter;
FIG. 4 is a perspective view of a baffle according to the present invention;
FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4;
FIG. 6 is an enlarged view of the structure at B in FIG. 3;
FIG. 7 is a cross-sectional view taken at C-C of FIG. 3;
FIG. 8 is a perspective view of a spoiler in accordance with the present invention;
FIG. 9 is a perspective view of the structure of the mounting hole of the rotating shaft of the upper housing of the hollow filter of the present invention;
wherein, 1-empty casing of straining (1.1-empty casing of straining, 1.2-empty casing of straining down), 2-intake pipe, 3-outlet ducts, 4-guide plate (4.1-water conservancy diversion curb plate, 4.2-water conservancy diversion roof, 4.3-buckle board, 4.4-barb board), 5-spoiler, 6 actuating mechanism, 7-buckle holes, 8-barb board draw-in grooves, 9-arc groove face, 10-pivot, 11-pivot mounting hole, 12-air flowmeter.
Detailed Description
The invention is described in further detail below with reference to the figures and the specific embodiments.
As shown in fig. 1-9 even admits air, the air filter structure of air input adjustable, including empty casing 1 of straining, empty casing 1 of straining is hollow structure, empty casing 1 of straining is strained casing 1.2 and empty casing 1.1 of straining by empty and is constituteed, empty be equipped with on the casing 1.1 of straining rather than the outlet duct 3 that is linked together and with empty intake pipe 2 that is linked together of straining casing 1.2 down, guide plate 4 and spoiler 5 are located empty gas outlet of straining casing 1.1 and outlet duct 3 between, actuating mechanism 6 is located empty 3 one sides of outlet duct of straining casing 1.1. The guide plate 4 is located the corner position that the casing 1.1 inside and outlet duct 3 are connected on the sky straining, and the spoiler 5 is located the straightway position of outlet duct 3. In order to simplify the structure and save the cost, the air inlet pipe 2 and the air outlet pipe 3 can be directly integrated on the air filter lower shell 1.2 and the air filter upper shell 1.1 respectively.
As shown in fig. 3-9, the flow guide plate 4 comprises a flow guide side plate 4.1 and a flow guide top plate 4.2 which is fixedly connected to the top of the flow guide side plate and is integrated with the flow guide side plate, one end of the flow guide side plate 4.1 is fixedly connected with a buckling plate 4.3 which is integrated with the flow guide side plate, and the bottom of the flow guide side plate 4.1 is fixedly connected with a barb plate 4.4 which is integrated with the flow guide side plate; the upper portion internal surface of casing 1.1 and the upper portion internal surface of outlet duct 3 are seted up respectively to empty the straining and are seted up with 4.3 complex buckle holes 7 of buckle board and with 4.4 complex barb integrated circuit board grooves 8 of barb board. A closed cavity is formed between the upper surface of the guide plate 4 and the inner surface of the upper part of the air filtering shell 1, so that gas is prevented from entering the air outlet pipe 3 through a gap between the guide plate 4 and the air filtering shell 1, and uniform flow guide of air is guaranteed. The buckle connected mode is designed to the upper shell body 1.1 and the guide plate 4 to empty straining, and the guide plate 4 designs into the barb structure, and empty upper shell body 1.1 and the spoiler 5 of straining design into draw-in groove cooperation structure, make guide plate 4 and spoiler 5 can install the dismantlement in a flexible way. The water conservancy diversion curb plate 4.1 is close to the arc groove face 9 that the one end middle part of outlet duct 3 is the indent can make the sky form the circular arc air flue to straining the air inlet department of casing 1.1 to outlet duct 3, avoids high velocity air flow direct impact to strain the casing wall surface at the right angle turn and forms the swirl to reduce the air flow resistance. Another embodiment of the present invention is: the guide plate 4 is directly welded inside the air filter upper shell 1.1 through welding spots, so that the guide plate 4 is stably installed.
In order to promote the water conservancy diversion effect of guide plate 4, reduce empty inside air intake resistance of straining, guide plate 4 designs into the arc structure, and the joint is strained upper casing 1.1 in the sky and is close to gas outlet right angle position department, and water conservancy diversion roof 4.2 is the plane, and is parallel with empty upper casing 1.1 assembly face of straining, and water conservancy diversion curb plate 4.1 is the arcwall face, as shown in fig. 5, water conservancy diversion roof 4.2 is 100 fillets with water conservancy diversion curb plate 4.1.
The two spoilers 5 are evenly arranged at the straight line section position of the air outlet pipe 3. Preferably, the distance between the spoiler 5 and the outlet surface of the outlet pipe 3 is 45 cm. The surface of the spoiler 5 is an arc-shaped surface, is vertical to the axis of the air outlet pipe 3, and the outer side surface is an arc-shaped convex surface while the inner side surface is an arc-shaped concave surface. The arc length is 18-22mm, and the central angle is 10-20 degrees. The optimal selection is as follows: the arc length is 20mm, and the central angle is 15 degrees.
Through above-mentioned structure be favorable to the air current to filter through air cleaner, evenly distributed when filtering the gas port through the air, promote the even coefficient that admits air to improve air flowmeter 12's reading accuracy.
The driving mechanism 6 comprises a driving motor and a reduction gear and is arranged at the straight line section position of the air outlet pipe 3. The working principle is as follows: the engine control unit collects an electronic throttle opening signal and then controls the engine through a control logic defined by the control unit: the corresponding spoiler angle is 0 degrees when the throttle opening is 25-90 degrees, the corresponding spoiler angle is 30 degrees when the throttle opening is 11-24 degrees, the corresponding spoiler angle is 60 degrees when the throttle opening is 0-10 degrees, the angle refers to an included angle between the arc-shaped concave surface of the spoiler 5 and the axial direction of the air outlet pipe, a corresponding control signal (duty ratio signal) is output to the driving motor, and the rotating angle of the spoiler 5 is controlled by the meshing of the reduction gear and the gear at the head part of the rotating shaft 10 of the spoiler 5 under the action of the driving motor, so that the air inflow control effect is achieved.
According to the invention, the guide plate 4 is arranged at the air filter shell 1 and the air outlet pipe 3, the guide plate 4 is used for guiding the air flow, and the guide plate 4 can prevent the high-speed air flow from intensively blowing at the right-angle turn of the upper air filter shell 1.1 to form a vortex, so that the air inlet resistance is reduced, and the air flow can smoothly pass through the air filter and enter the air flow meter 12. The structure of the spoiler 5 enables high-speed airflow to be uniformly distributed when passing through the spoiler 5, and then the airflow enters the air flow meter 12 after passing through the air outlet pipe 3 more uniformly at a better angle. The rotation angle of the spoiler 5 is controlled by collecting the opening degree signal of the throttle valve of the engine and adding a driving motor and a reduction gear, and the air inflow through the air flow meter 12 is controlled. The air filter designed by the invention has a simple air inlet structure and is easy to realize. Can design the repacking on current empty straining, the practicality is strong, and the repacking cost is low.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the structure of the present invention in any way. Any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention still fall within the scope of the technical solution of the present invention.
Claims (10)
1. The utility model provides an even, the air input adjustable empty structure of straining admits air, strains casing (1) including inside hollow sky, the empty intake pipe (2) and outlet duct (3) of fixedly connected with rather than inside intercommunication on straining casing (1), its characterized in that: be provided with in the empty casing (1) of straining and be used for reducing the resistance of admitting air, make the even water conservancy diversion structure of admission distribution, it is including being fixed in the empty casing (1) of straining, along the direction of admitting air arrange in guide plate (4) in outlet duct (3) the place ahead with arrange in spoiler (5) in outlet duct (3), the empty casing (1) of straining is fixed with on being used for the drive spoiler (5) revolute axle (10) pivoted actuating mechanism (6).
2. The air filter structure with uniform air intake and adjustable air intake amount according to claim 1, characterized in that: one end of the guide plate (4) is fixed on the inner surface of the top of the air filter shell (1), the other end of the guide plate is fixed on the inner surface of the upper part of the air outlet pipe (3), and a closed cavity is formed between the upper surface of the guide plate (4) and the inner surface of the upper part of the air filter shell (1).
3. The air filter structure with uniform air intake and adjustable air intake as claimed in claim 2, wherein: the flow guide plate (4) comprises a flow guide side plate (4.1) and a flow guide top plate (4.2) which is fixedly connected to the top of the flow guide side plate and is of an integral structure with the flow guide side plate, one end of the flow guide side plate (4.1) is fixedly connected with a buckle plate (4.3) which is of an integral structure with the flow guide side plate, and the bottom of the flow guide side plate (4.1) is fixedly connected with a barb plate (4.4) which is of an integral structure with the flow guide side plate; the inner surface of the upper part of the air filter shell (1) is provided with a buckle hole (7) matched with the buckle plate (4.3) and a barb plate clamping groove (8) matched with the barb plate (4.4).
4. An air filter structure with uniform air inlet and adjustable air inlet amount according to claim 3, characterized in that: the connection part of the flow guide top plate (4.2) and the flow guide side plate (4.1) is an arc surface, and the corresponding fillet degree of the arc surface is 95-105 degrees.
5. The air filter structure with uniform air intake and adjustable air intake amount according to claim 4, characterized in that: the middle part of one end of the flow guide side plate (4.1) close to the air outlet pipe (3) is an inwards concave arc groove surface (9).
6. The air filter structure with uniform air intake and adjustable air intake amount according to claim 1, characterized in that: at least two spoilers (5) are arranged in the air outlet pipe (3) side by side.
7. The air filter structure with uniform air intake and adjustable air intake as claimed in claim 6, wherein: the spoiler (5) is coaxially fixed on the rotating shaft (10), the two ends of the rotating shaft (10) penetrate through the end faces of the upper side and the lower side of the spoiler (5), the upper side and the lower side of the inner surface of the air outlet pipe (3) are respectively provided with at least two rotating shaft mounting holes (11) matched with the rotating shaft (10) side by side, and the rotating shaft (10) is rotatably arranged in the rotating shaft mounting holes (11).
8. The air filter structure with uniform air intake and adjustable air intake as claimed in claim 7, wherein: the spoiler (5) is an arc-shaped plate, the arc surface length of the arc-shaped plate is 18-22mm, and the central angle of the arc-shaped plate is 10-20 degrees.
9. The air filter structure with uniform air intake and adjustable air intake as claimed in claim 8, wherein: the distance between the spoiler (5) and the mouth surface of the air outlet pipe (3) is 40-50 cm.
10. An air inlet adjusting method based on the air filter structure with uniform air inlet and adjustable air inlet amount as claimed in any one of claims 1 to 9, characterized in that: collecting an opening signal of a throttle valve, judging the opening of the current throttle valve, controlling the driving mechanism (6) to drive the spoiler (5) to rotate when the collected current throttle valve opening is 25-90 degrees, enabling the upper surface of the spoiler (5) to be parallel to the axial direction of the air outlet pipe (3), controlling the driving mechanism (6) to drive the spoiler (5) to rotate when the collected current throttle valve opening is 11-24 degrees, enabling an angle formed by the upper surface of the spoiler (5) and the axial direction of the air outlet pipe (3) to be 30 degrees, and controlling the driving mechanism (6) to drive the spoiler (5) to rotate when the collected current throttle valve opening is 0-10 degrees, and enabling an angle formed by the upper surface of the spoiler (5) and the axial direction of the air outlet pipe (3) to be 60 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210470086.9A CN114962089B (en) | 2022-04-28 | 2022-04-28 | Air filtering structure with uniform air inlet and adjustable air inlet amount and air inlet adjusting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210470086.9A CN114962089B (en) | 2022-04-28 | 2022-04-28 | Air filtering structure with uniform air inlet and adjustable air inlet amount and air inlet adjusting method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114962089A true CN114962089A (en) | 2022-08-30 |
| CN114962089B CN114962089B (en) | 2023-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210470086.9A Active CN114962089B (en) | 2022-04-28 | 2022-04-28 | Air filtering structure with uniform air inlet and adjustable air inlet amount and air inlet adjusting method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN114962089B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204411963U (en) * | 2014-12-31 | 2015-06-24 | 曼胡默尔滤清器（上海）有限公司 | The supplementary structure that a kind of air filter system is filtered and flow resistance performance improves |
| EP3150838A1 (en) * | 2015-09-30 | 2017-04-05 | Honda Motor Co., Ltd. | Air cleaner device |
| CN207660734U (en) * | 2017-12-01 | 2018-07-27 | 北京汽车研究总院有限公司 | A kind of air cleaner upper shell flow-guiding structure, air cleaner and automobile |
| US20210164424A1 (en) * | 2019-12-02 | 2021-06-03 | Mahle International Gmbh | Air cleaner |
| CN216111060U (en) * | 2021-06-07 | 2022-03-22 | 长城汽车股份有限公司 | Casing assembly of air filter |
-
2022
- 2022-04-28 CN CN202210470086.9A patent/CN114962089B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204411963U (en) * | 2014-12-31 | 2015-06-24 | 曼胡默尔滤清器（上海）有限公司 | The supplementary structure that a kind of air filter system is filtered and flow resistance performance improves |
| EP3150838A1 (en) * | 2015-09-30 | 2017-04-05 | Honda Motor Co., Ltd. | Air cleaner device |
| CN207660734U (en) * | 2017-12-01 | 2018-07-27 | 北京汽车研究总院有限公司 | A kind of air cleaner upper shell flow-guiding structure, air cleaner and automobile |
| US20210164424A1 (en) * | 2019-12-02 | 2021-06-03 | Mahle International Gmbh | Air cleaner |
| CN216111060U (en) * | 2021-06-07 | 2022-03-22 | 长城汽车股份有限公司 | Casing assembly of air filter |
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| Publication number | Publication date |
|---|---|
| CN114962089B (en) | 2023-09-12 |
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