CN209687629U - A kind of efficient gas handling system of automobile engine - Google Patents
A kind of efficient gas handling system of automobile engine Download PDFInfo
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- CN209687629U CN209687629U CN201920409507.0U CN201920409507U CN209687629U CN 209687629 U CN209687629 U CN 209687629U CN 201920409507 U CN201920409507 U CN 201920409507U CN 209687629 U CN209687629 U CN 209687629U
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- air
- pipe
- air inlet
- handling system
- booster
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Abstract
The utility model discloses a kind of efficient gas handling system of automobile engine, which includes that dirty air pipe, air cleaner and clean pipe, the front lower portion of air cleaner are provided with tangential admission mouth, and the front end of air cleaner offers gas outlet；The inside of air cleaner is provided with coaxial exhaust pipe, filter screen and inlet channel from internal layer outer layers；Exhaust pipe and gas outlet are coaxial and communicate, and inlet channel is connected to tangential admission mouth；The front of filter screen, which is exceptionally enclosed, is enclosed with isolation board, and isolation board is isolated by the inlet channel of preceding part and filter screen；By means of the structure, gas flow rate in entire gas handling system is higher, the intake efficiency of gas handling system is improved, while being set in tangential admission air filter, can be improved pre-filtering efficiency, reduce system resistance, extend filter core maintenance period, reduces production and application cost, improve the dynamic property and economy of automobile, the whole system of the utility model is fixed on automobile by the way that bracket is integrated, reduces system weight.
Description
[technical field]
The utility model belongs to automobile engine system field, and in particular to a kind of efficient air inlet system of automobile engine
System.
[background technique]
With the upgrading of automobile emissions standards, chassis arrangement space reduces therewith, and conventional gas introduction system has been unable to meet cloth
Requirement is set, the performance requirement of high-power, the low oil consumption of engine and the market demand of long maintenance period can not be met.Air inlet system
System plays an important role to automobile " energy conservation, emission reduction ", to meet arrangement, performance and the market demand, is badly in need of a kind of occupied space
It is small, the high engine aspirating system of filter efficiency.
[utility model content]
The shortcomings that the purpose of the utility model is to overcome the above-mentioned prior arts, provide a kind of automobile engine it is efficient into
Gas system；The system is improved from each component materials of gas handling system, structure, technique etc., improves filter efficiency, drop
Low system resistance.
In order to achieve the above objectives, the utility model is achieved using following technical scheme:
A kind of efficient gas handling system of automobile engine, including dirty air pipe, the air cleaner and clean being sequentially communicated
Pipe；Entire efficiently gas handling system is fixed by the bracket on the vehicle frame that automobile is arranged in；
The front lower portion of air cleaner is provided with tangential admission mouth, and the front end of air cleaner offers gas outlet；It is empty
The inside of air cleaner is provided with coaxial exhaust pipe, filter screen and inlet channel from internal layer outer layers；Exhaust pipe and go out
Port is coaxial and communicates, and inlet channel is connected to tangential admission mouth；The front of filter screen, which is exceptionally enclosed, is enclosed with isolation board, isolation board
The inlet channel of preceding part and filter screen are isolated.
Further improvement of the utility model is:
Preferably, dirty air pipe includes sequentially connected air inlet flat pipe, bellows, inlet pipe connection and air filter air inlet pipe；
Air filter air inlet pipe is connected to tangential admission mouth；Clean pipe includes sequentially connected air filter escape pipe, booster air inlet pipe and pressurization
Device connecting tube, air filter escape pipe are connected to gas outlet, and booster connecting tube is connected to automobile engine.
Preferably, the inlet lower part of air inlet flat pipe gas offers the first discharge outlet, the exit of air inlet flat pipe gas
Lower part is provided with the second discharge outlet；The lower part of inlet pipe connection is provided with third discharge outlet.
Preferably, inlet pipe connection includes inlet end and the outlet side of connection, and the top of inlet end, which is provided with, to be used for and wave
The guide support of line pipe connection；The outside that bellows is stacked on guide support is connected with guide support interference.
Preferably, the exit of outlet side is provided with the first guide ledges, and the diameter of the first guide ledges is less than outlet side
The junction of the diameter of supervisor, the first guide ledges and outlet side supervisor are provided with the first positive stop lug boss, the first positive stop lug boss
Diameter is greater than the diameter of outlet side supervisor.
Preferably, air filter air inlet pipe, air filter escape pipe and booster connecting tube are bend pipe, and the both ends of bend pipe are provided with
Clip card slot.
Preferably, ripple is provided on air filter air inlet pipe and air filter escape pipe；Air filter air inlet pipe, air filter escape pipe and increasing
Depressor connecting tube is ethylene-acrylate rubber material.
Preferably, the inside of air inlet flat pipe is provided with cavity along gas flow direction.
Preferably, the air inlet and air outlet at booster air inlet pipe both ends are provided with guide ledges, guide ledges it is straight
Diameter is respectively less than the predominant tube diameter of booster air inlet pipe, and the supervisor junction of two guide ledges and booster air inlet pipe is provided with
Positive stop lug boss, the diameter of positive stop lug boss are all larger than the predominant tube diameter of booster air inlet pipe；Booster air inlet pipe is polypropylene material.
Preferably, the lower part of booster air inlet pipe air inlet is provided with air compressor machine air hatch.
Compared with prior art, the utility model has the following beneficial effects:
The utility model discloses a kind of efficient gas handling system of automobile engine, which includes dirty air pipe, air
Filter and clean pipe, system by the way that the air inlet of air cleaner to be set perpendicularly to the axial direction of air cleaner so that
The air of entrance can be entered in air cleaner with tangential direction so that air because the effect of flowing and by " get rid of into "
In air cleaner, air is at spiral flow in filter, and while increasing flowing stroke, the dust of bulky grain can
It is attached to inside air filter；After air is filtered inside air cleaner, flowed out from outlet；By means of the structure, entirely into
Gas flow rate in gas system is higher, improves the intake efficiency of gas handling system, while setting in tangential admission air filter, can be improved
Pre-filtering efficiency reduces system resistance, extends filter core maintenance period, reduces production and application cost, improves the dynamic property of automobile
And economy, the whole system of the utility model are fixed on automobile by the way that bracket is integrated, reduce system weight.
Further, by the careful various pieces for decomposing air circulation pipeline, optimize the structure of gas handling system, make to have leisure
After gas enters gas handling system, can be more smoothly enter filter.
Further, the first discharge outlet and the second discharge outlet, the lower part setting of inlet pipe connection are offered on air inlet flat pipe
There is third discharge outlet, which improves water rem oval, extend filter core and use
Service life reduces use cost.
Further, inlet pipe connection is by guide support and bellows interference fit connection, and bellows-sheathed is mounted in guiding
The outside of support, which is free connection type, so that the connection of the two is reliable, is disconnected freely；Again because of bellows
For stacked, so that the sealing effect of junction is good.
Further, the outlet side of inlet pipe connection is provided with guide ledges and positive stop lug boss, can be convenient for assembly, shortens
Assembly man-hour reduces production cost, improves homogeneity of product.
Further, the both ends of air filter air inlet pipe, air filter escape pipe and booster connecting tube are provided with clip card slot, energy
It is enough convenient for assembly, shorten assembly man-hour.
Further, it is provided with ripple on air filter air inlet pipe and air filter escape pipe, reduced in assembly and use process
The stress of air cleaner improves reliability.Connecting tube is ethylene-acrylate rubber material, so that whole system light weight
Change.
Further, because the gas passage inside air inlet flat pipe is cavity, so that the flow resistance of gas is small, gas is improved
Body flow efficiency.
Further, the air inlet and air outlet at booster air inlet pipe both ends are provided with guide ledges and positive stop lug boss,
It is convenient for assembly, shorten assembly man-hour, reduce production cost, improves homogeneity of product；Booster air inlet pipe is polypropylene material, whole
A device is Unitarily blowing formed, reduces cost and weight.
Further, the prefabricated air compressor machine of booster air inlet pipe takes tracheae, and direction is reasonable, avoids air compressor machine oil return.
[Detailed description of the invention]
Fig. 1 is the Efficient automobile air intake system structure schematic diagram of the utility model.
Fig. 2 is the discharge outlet position view of the utility model；
Fig. 3 is the inlet pipe connection structural schematic diagram of the utility model.
Fig. 4 is the air filter air feeder structure schematic diagram of the utility model；
Fig. 5 is the air filtering device structure schematic diagram of the utility model.
Fig. 6 is the air filter outlet duct structures schematic diagram of the utility model；
Fig. 7 is the booster air feeder structure schematic diagram of the utility model；
Fig. 8 is the booster connecting pipe structure schematic diagram of the utility model；
Fig. 9 is the air cleaner internal cross section cross-sectional view of the utility model；
Figure 10 is longitudinal section cross-sectional view inside the air cleaner of the utility model.
Wherein: 1- dirty air pipe；2- air cleaner；3- is completely managed；4- bracket；11- air inlet flat pipe；12- bellows；
13- inlet pipe connection；14- air filter air inlet pipe；21- tangential admission mouth；The gas outlet 22-；23- inlet channel；24- filter screen；25-
Exhaust pipe；26- support frame；27- isolation board；31- air filter escape pipe；32- booster air inlet pipe；33- booster connecting tube；
41- air inlet flat pipe bracket；42- inlet pipe connection bracket；43- air filter bracket；The first discharge outlet of 111-；112- second is drained
Mouthful；131- third discharge outlet；132- inlet end；133- guide support；The outlet side 134-；The first guide ledges of 135-；136-
One positive stop lug boss；141- the first clip card slot；211- initial segment；212- procedure segment；311- limit card slot；312- the second clip card
Slot；The second guide ledges of 221-；The second positive stop lug boss of 222-；223- air compressor machine air hatch；224- third positive stop lug boss；225-
Three guide ledges；231- third clip card slot.
[specific embodiment]
The utility model is described in further detail with reference to the accompanying drawing:
Referring to attached drawing 1, the utility model discloses a kind of Efficient automobile gas handling systems, comprising: dirty air pipe 1, air filter
Clear device 2, clean pipe 3 and bracket 4.Wherein, dirty air pipe 1 includes: air inlet flat pipe 11, bellows 12, inlet pipe connection 13 and sky
Filter air inlet pipe 14.Clean pipe 3 includes: air filter escape pipe 31,32 booster connecting tube 33 of booster air inlet pipe.Bracket 4 include: into
Gas flat tube bracket 41, inlet pipe connection bracket 42 and air filter bracket 43.
Air inlet flat pipe 11 is fixed on lid of cab and back wall by air inlet flat pipe bracket 41, and air hatch position is higher, inhales
The koniology content taken is lower, and air mass is improved on source.Air inlet flat pipe 11 is arranged in the air inlet of air inlet flat pipe 11
Side was prevented at rainy day, and rainwater is flowed into air inlet flat pipe 11 by air inlet, and the lower part of 11 inlet end of air inlet flat pipe is arranged
There is the first discharge outlet 111, outlet is provided with the second discharge outlet 112, from the source waterproof and gas flow of inlet end
Process water removal, can be improved water rem oval, extend filter core maintenance period, reduce use cost.11 outer surface dermatoglyph of air inlet flat pipe
Processing promotes exterior quality.The top of air inlet flat pipe 11 and bellows 12 passes through T-type clip by interference fit connection, outside
It is stuck.
Referring to Fig. 3, inlet pipe connection 13 includes inlet end 132 and outlet side 134, and inlet end 132 and outlet side 134 are connected
It is identical, it is provided with guide support 133 at the gas access on the top of inlet end 132, is connect with bellows 12, under bellows 12
Portion stacks the outside for being sleeved on guide support 133, and by size design, what bellows 12 can be interference fitted is sleeved on guiding
The outside of support 133 disconnects freely so that the connection of the two is reliable；Again because bellows 12 is stacked, so that junction
Sealing effect is good；When whole system is overturn, guide support can provide guiding role to softer bellows 12；Air inlet
The bottom at end 132 is provided with third discharge outlet 131, improves water rem oval.The end of outlet side 134 is provided with the first guide ledges
135, the diameter of first guide ledges 135 is less than the caliber that outlet side 134 is responsible for, the first guide ledges 135 and outlet side
The first positive stop lug boss 136 is arranged in the junction of 134 supervisors, and the first guide ledges 135 are used for and air filter air inlet pipe 14 connects, and first
Positive stop lug boss 136 is used for the displacement on outlet side 134 of air filter air inlet pipe 14.First guide ledges 135 and the first limit convex
Platform 136 can facilitate the assembly of air filter air inlet pipe 14, shorten assembly man-hour, reduce production cost, improve homogeneity of product；Air inlet
Connecting tube 13 is arranged on vehicle frame by inlet pipe connection bracket 42.
Referring to fig. 4, air filter air inlet pipe 14 is provided with ripple in its air inlet, reduces the air filter in assembly and use process
The stress of clear device 2, improves reliability.Air inlet and air outlet are provided with the first clip card slot 141, facilitate air filter air inlet pipe 14
It is connected with the inlet pipe connection of front end and the air cleaner 2 of rear end.
Fig. 1, Fig. 5, Fig. 8 and Fig. 9 are participated in, air cleaner 2 is fixed on driving cab rear suspension cross by air filter bracket 43
Beam makes full use of chassis space.The front lower portion of air cleaner 2 be provided with along 2 cross section of air cleaner it is tangential into
Port 21, the front end face of air cleaner 2 are provided with gas outlet 22, and gas outlet 22 and air cleaner 2 are coaxial；Air cleaner
2 inside is divided into three layers, and central core is exhaust pipe 25, and exhaust pipe 25 is connected to gas outlet 22, and gas outlet 22 and air filter go out
Tracheae 31 is connected to, and middle layer is filter screen 24, and outer layer is inlet channel 23；Inlet channel 23 wraps up filter screen 24, filter screen packet
Gas outlet 22 is wrapped up in, three-decker is coaxial；Corresponding exhaust pipe 25 is cylindrical body, and filter screen 24 is ring-type, inlet channel 23
It is all ring-type；It is provided with cricoid support frame 26 between filter screen 24 and exhaust pipe 25, is used to support entire filter screen 24, props up
Support 26 is fence form, can pass through gas；Some isolation board 27 is arranged around its outside in the front of filter screen 24, every
It is all ring-type from plate 27, inlet channel 23 and filter screen 24 is isolated, the length of isolation board 27 is more than or equal to tangential admission mouth 21
Initial segment 211 diameter, the length of isolation board 27 is less than the length of entire air cleaner 2；Along the approach axis of gas,
Tangential admission mouth 21 divides initial segment 211 and procedure segment 212 to communicate, and the front side wall of initial segment 211 and procedure segment 212 is same
In cambered surface, for rear wall not in same cambered surface, the diameter of procedure segment 212 is less than the diameter of initial segment 211, procedure segment 212 and into
Gas channel 23 is connected to；Air enters air cleaner 2 from initial segment 211, by the procedure segment 212 of reduced cross-sectional, because of flowing
The reduced cross-sectional area of process, in the case where admission pressure is constant, air velocity increases, after air enters inlet channel 23,
Because the presence of isolation board 27 can not directly through filter screen 24, but it is screw type move backward, from the rear portion of filter screen 24
Divide and enter the filtering of filter screen 24, is discharged after the entrance exhaust pipe 25 of support frame 26；Stream of the entire air in air cleaner 2
During dynamic, acceleration (flow section reduction) is first passed around, so that entire flow process is more smoothly, spiral flow can increase
Flowing of the air in air cleaner 2 is added to be formed, so that the pollutant of some bulky grains contacts air inlet in flow process and leads to
It is possible to Direct precipitation when the inner wall in road 23 or is adsorbed on inner wall, the bulky grain pollutant before reducing filtering, while accelerating
Cheng Liantong helical flow is equivalent to and gets rid of air into air cleaner 2, and then improves filter efficiency, extends filter core maintenance week
Phase reduces use cost.
Referring to Fig. 6, the both ends of air filter escape pipe 31 are provided with the second clip card slot 312, the second clip card of air inlet
Limit card slot 311 is equipped on slot 312, it is convenient for assembly, shorten assembly man-hour, reduce production cost, improves homogeneity of product.It is empty
It filters out and is provided with ripple on tracheae 31, reduce the stress of the air cleaner 2 in assembly and use process, improve reliability.
Referring to Fig. 7, the air inlet of booster air inlet pipe 32 is provided with the second guide ledges 221,221 He of the second guide ledges
The junction that booster air inlet pipe 32 is responsible for is provided with the second positive stop lug boss 222；The gas outlet of booster air inlet pipe 322 is provided with
The junction that third guide ledges 225, third guide ledges 225 and booster air inlet pipe 32 are responsible for is provided with third positive stop lug boss
224；The diameter of second guide ledges 221 and third guide ledges 225 be respectively less than booster air inlet pipe 32 supervisor diameter, second
The diameter of positive stop lug boss 222 and third positive stop lug boss 224 is all larger than the diameter of the supervisor of booster air inlet pipe 32；Pass through guide ledges
, can be convenient for assembly with the setting of positive stop lug boss, shorten assembly man-hour, reduce production cost, improves homogeneity of product.Booster
The air inlet lower part of air inlet pipe 32 offers air compressor machine air hatch 223.Entire booster air inlet pipe 32 uses PP (polypropylene) material
Expect it is Unitarily blowing formed, reduce weight, direction is reasonable, avoids air compressor machine oil return.
Referring to Fig. 8, booster connecting tube 33 is provided with third clip card slot 231, convenient for assembly.By T-type clip and increase
Depressor air inlet pipe 32 is connected with booster, and booster connecting tube 33 is pressed and molded using AEM (ethylene-acrylate rubber) material,
Improve reliability.It finally, booster connecting tube 33 is concordant with 32 die parting line of booster air inlet pipe, can instruct to assemble, shorten assembly
Working hour reduces production cost, improves homogeneity of product.
The mentality of designing of the utility model:
The utility model discloses a kind of efficient gas handling system of automobile engine, the system is by by air cleaner
Tangential admission mouth 21 is set perpendicularly to entire copper axis, and the air entered is enabled to enter air cleaner with tangential direction
In 2 so that air because the effect of flowing and by " get rid of to " air cleaner 2, filtered inside air cleaner 2
Afterwards, it is flowed out from outlet；At the same time, because the gas passage inside air inlet flat pipe 11 is cavity, so that the flow resistance of gas
It is small；Therefore by the cavity gas passage in the cutting orientation structure and air inlet flat pipe 11 of air cleaner 2, so that gas is in the air inlet
Flowing is smooth in system, and flow resistance is small；
Air filter air inlet pipe 14, air filter escape pipe 31 and the booster connecting tube 33 of the utility model are AEM rubber material,
Super charge pipe 22 is PP material, and air inlet flat pipe 11 is plastic lightweight material, reduces system weight on the whole
Amount.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (10)
1. a kind of efficient gas handling system of automobile engine, which is characterized in that including dirty air pipe (1), the air being sequentially communicated
Filter (2) and clean pipe (3)；Entire efficiently gas handling system is fixed on the vehicle frame of automobile by bracket (4)；
The front lower portion of air cleaner (2) is provided with tangential admission mouth (21), and the front end of air cleaner (2) offers outlet
Mouth (22)；The inside of air cleaner (2), from internal layer outer layers be provided with coaxial exhaust pipe (25), filter screen (24) and
Inlet channel (23)；Exhaust pipe (25) and gas outlet (22) are coaxial and communicate, inlet channel (23) and tangential admission mouth (21)
Connection；The front of filter screen (24), which is exceptionally enclosed, to be enclosed with isolation board (27), and isolation board (27) is by the inlet channel (23) of preceding part
It is isolated with filter screen (24).
2. a kind of efficient gas handling system of automobile engine according to claim 1, which is characterized in that dirty air pipe (1)
Including sequentially connected air inlet flat pipe (11), bellows (12), inlet pipe connection (13) and air filter air inlet pipe (14)；Air filter air inlet
Pipe (14) is connected to tangential admission mouth (21)；Clean pipe (3) includes sequentially connected air filter escape pipe (31), booster air inlet pipe
(32) it is connected to booster connecting tube (33), air filter escape pipe (31) with gas outlet (22), booster connecting tube (33) is connected to
Automobile engine.
3. a kind of efficient gas handling system of automobile engine according to claim 2, which is characterized in that air inlet flat pipe (11)
The inlet lower part of gas offers the first discharge outlet (111), and the exit lower part of air inlet flat pipe (11) gas is provided with second
Discharge outlet (112)；The lower part of inlet pipe connection (13) is provided with third discharge outlet (131).
4. a kind of efficient gas handling system of automobile engine according to claim 2, which is characterized in that inlet pipe connection
(13) include connection inlet end (132) and outlet side (134), the top of inlet end (132), which is provided with, to be used for and bellows
(12) guide support (133) connected；Bellows (12) is stacked on outside and guide support (133) mistake of guide support (133)
It is full of connection.
5. a kind of efficient gas handling system of automobile engine according to claim 3, which is characterized in that outlet side (134)
Exit be provided with the first guide ledges (135), the diameters of the first guide ledges (135) is less than outlet side (134) supervisor's
The junction of diameter, the first guide ledges (135) and outlet side (134) supervisor are provided with the first positive stop lug boss (136), the first limit
The diameter of position boss (136) is greater than the diameter of outlet side (134) supervisor.
6. a kind of efficient gas handling system of automobile engine according to claim 2, which is characterized in that air filter air inlet pipe
(14), air filter escape pipe (31) and booster connecting tube (33) are bend pipe, and the both ends of bend pipe are provided with clip card slot.
7. a kind of efficient gas handling system of automobile engine according to claim 2, which is characterized in that air filter air inlet pipe
(14) and on air filter escape pipe (31) it is provided with ripple；Air filter air inlet pipe (14), air filter escape pipe (31) are connected with booster
Managing (33) is ethylene-acrylate rubber material.
8. a kind of efficient gas handling system of automobile engine according to claim 2, which is characterized in that air inlet flat pipe (11)
Inside gas flow direction is provided with cavity.
9. according to the efficient gas handling system of automobile engine described in claim 2-8 any one, which is characterized in that booster
The air inlet and air outlet at air inlet pipe (32) both ends are provided with guide ledges, and the diameter of guide ledges is respectively less than booster air inlet
The supervisor junction of the predominant tube diameter of pipe (32), two guide ledges and booster air inlet pipe (32) is provided with positive stop lug boss,
The diameter of positive stop lug boss is all larger than the predominant tube diameter of booster air inlet pipe (32)；Booster air inlet pipe (32) is polypropylene material.
10. a kind of efficient gas handling system of automobile engine according to claim 9, which is characterized in that booster air inlet
The lower part of pipe (32) air inlet is provided with air compressor machine air hatch (223).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920409507.0U CN209687629U (en) | 2019-03-28 | 2019-03-28 | A kind of efficient gas handling system of automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920409507.0U CN209687629U (en) | 2019-03-28 | 2019-03-28 | A kind of efficient gas handling system of automobile engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209687629U true CN209687629U (en) | 2019-11-26 |
Family
ID=68606494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920409507.0U Active CN209687629U (en) | 2019-03-28 | 2019-03-28 | A kind of efficient gas handling system of automobile engine |
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| Country | Link |
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| CN (1) | CN209687629U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114030350A (en) * | 2021-10-28 | 2022-02-11 | 东风商用车有限公司 | Air filtering and air inlet system of fuel cell automobile |
| CN114264441A (en) * | 2021-11-25 | 2022-04-01 | 江铃汽车股份有限公司 | Novel test method for air filter dirty pipe for vehicle |
| EP4085192A4 (en) * | 2019-12-30 | 2024-01-03 | Fleetguard Filters Private Ltd | Air intake system for vehicle |
-
2019
- 2019-03-28 CN CN201920409507.0U patent/CN209687629U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4085192A4 (en) * | 2019-12-30 | 2024-01-03 | Fleetguard Filters Private Ltd | Air intake system for vehicle |
| CN114030350A (en) * | 2021-10-28 | 2022-02-11 | 东风商用车有限公司 | Air filtering and air inlet system of fuel cell automobile |
| CN114030350B (en) * | 2021-10-28 | 2023-07-11 | 东风商用车有限公司 | Air filtering and air inlet system of fuel cell automobile |
| CN114264441A (en) * | 2021-11-25 | 2022-04-01 | 江铃汽车股份有限公司 | Novel test method for air filter dirty pipe for vehicle |
| CN114264441B (en) * | 2021-11-25 | 2024-03-15 | 江铃汽车股份有限公司 | Test method of vehicular air filter dirty pipe |
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