CN105920959A - Rough filtering structure of air filter - Google Patents
Rough filtering structure of air filter Download PDFInfo
- Publication number
- CN105920959A CN105920959A CN201610336123.1A CN201610336123A CN105920959A CN 105920959 A CN105920959 A CN 105920959A CN 201610336123 A CN201610336123 A CN 201610336123A CN 105920959 A CN105920959 A CN 105920959A
- Authority
- CN
- China
- Prior art keywords
- ring
- air filter
- coarse filtration
- air
- check ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00
Abstract
The invention relates to a novel rough filtering structure of an air filter. The rough filtering structure can effectively solve the problems that as a whole check ring covers a filter element by a large area, the product resistance is high, the dust containing amount is low, and service life is short. According to the technical scheme, the rough filtering structure of the air filter comprises a check ring, and the check ring is located in the middle of the part between an air inlet and a filter element; the rough filtering structure is characterized in that the check ring is in a circular arc shape, and the arc angle alpha ranges from 60 degrees to 300 degrees; or the check ring is in a whole ring mode with a notch, and the upper edge of the notch of the check ring is one of a straight line edge, a curve edge, an oblique edge and a step-shaped edge. The rough filtering stricture is mainly used in air filters used in automobiles (including engineering machinery), ships and generator sets.
Description
Technical field
The present invention relates to a kind of novel air filter coarse filtration structure, it is possible to efficiently solve coarse filtration improved efficiency and the product resistance that causes is high, and the problem such as installing space is little.
Background technology
At present, the conventional coarse filtration structure for air filter is shown in Fig. 1, and gas enters from air filter air inlet 1, by whole ring type circumference back-up ring 2 and air stream axle directional guiding structure 3, enters the main filter element 4 of air filter inner barrel.Air-flow is under the effect of cylinder whole ring type circumference back-up ring 2 and the axially directed structure of air-flow 3, generation back rotation is moved, impurity particle in air-flow produces centrifugal force after rotation, large granular impurity in gas is got rid of on cylinder inboard wall, granule rotates the dust-exhausting port to cylinder body bottom along spiral path, after discharged by dust-exhausting port, thus create coarse filtration efficiency.We find under study for action, in the process, owing to circumference back-up ring 2 covers most main filter element 4 surface, the gas flow causing air inlet is narrow and small, and air-flow have to pass through whole back-up ring 2 after could enter filter element, so the flow resistance at coarse filtration structure is the highest, the flow resistance causing whole air filter assembly is higher.Additionally in the case of different leaves angle air stream axle directional guiding structure 3, air-flow produces the direction of rotation of different angles, in the concentration discharge of dust-exhausting port, impurity particle is created impact, will also result in the phenomenon that air filter coarse filtration efficiency declines.
Summary of the invention
The technical problems such as the air filter flow resistance that the invention aims to overcome coarse filtration structure air inlet runner area narrow and small and cause is high, coarse filtration efficiency is unstable, the life-span is short, a kind of brand-new coarse filtration structure for air filter of proposition.
The technical scheme is that a kind of air filter coarse filtration structure, including back-up ring, described back-up ring is positioned at air inlet and filter element middle position, it is characterized in that back-up ring shape is arc-shaped surface, and curved angle α scope is 60 °-300 °；Or in jagged whole ring type, back-up ring breach top edge is the one in straight line, curved side, hypotenuse or notch cuttype.Back-up ring can be made of one part with shell flange, it is also possible to existing as single part, back-up ring bottom inside fixes main filter element or as main cartridge seal face.Back-up ring height exceedes air inlet position.
The invention has the beneficial effects as follows, compared with whole circle back-up ring coarse filtration structure, inventive air filter coarse filtration efficiency can improve 10%, and fluid resistance declines more than 15%, solves conventional coarse filtration structure coarse filtration efficiency and improves the problem that flow resistance also synchronizes to raise.
Accompanying drawing explanation
Fig. 1 is the coarse filtration structural representation front view of regular air cleaner.
Fig. 2 is present configuration schematic front view.
Fig. 3 is present configuration signal left view.
Fig. 4 is the embodiment of the present invention 2 catch gap structure schematic diagram.
Fig. 5 is the embodiment of the present invention 3 catch gap structure schematic diagram.
Fig. 6 is the embodiment of the present invention 4 catch gap structure schematic diagram.
Fig. 7 is the embodiment of the present invention 5 catch gap structure schematic diagram.
In figure: 1-air inlet, 2-back-up ring, 3-guide frame, the main filter element of 4-, 5-top edge, 6-back-up ring bottom inside, 7-air outlet.
Detailed description of the invention
Embodiment 1, reference Fig. 2,3, a kind of air filter coarse filtration structure, including back-up ring, described back-up ring is positioned at air inlet and filter element middle position, prevents air inlet gas to be directly blown onto on filter element 6.Back-up ring 2 shape is arc-shaped surface, and curved angle α scope is 60 °-300 °, and back-up ring 2 and shell flange are made of one part, and back-up ring bottom inside 6 fixes main filter element 4 or as main cartridge seal face.Back-up ring 2 highly exceedes air inlet 1 position.During air filter work, gas enters cylinder from air filter air inlet 1, rotate along guide frame direction from back-up ring 2 side, forming spiral rotating, by the effect of centrifugal force, the large granular impurity in gas gets rid of on cylinder inboard wall and bonnet, granule rotates the dust-exhausting port to cylinder body bottom along spiral path, discharging from dust-exhausting port, gas small particles impurity is with air-flow by after main filter element 4 in-depth filtration, and clean gas is discharged into downstream passage from air outlet 7.
In above-mentioned case, guide frame can be made of one formula structure with cylinder, it is possible to is made of one formula structure with back-up ring 2.
Compared with conventional spinning disk, back-up ring 2 adds air inlet gas channel area, and reduces the back-up ring area coverage to filter element, thus the gas reducing whole air filter passes through resistance, improves overall performance.
Embodiment 2, reference Fig. 3,4, back-up ring 2 is in jagged whole ring type, and back-up ring breach top edge 5 is straight line, and H is more than zero, and remaining is same as in Example 1.
Embodiment 3, reference, Fig. 3,5, back-up ring 2 is in jagged whole ring type, and back-up ring breach top edge 5 is curved side, and H is more than zero, and remaining is same as in Example 1.
Embodiment 4, reference Fig. 3,6, back-up ring 2 is in jagged whole ring type, and back-up ring breach top edge 5 is hypotenuse, and H is more than zero, and remaining is same as in Example 1.
Embodiment 5, reference Fig. 3,7, back-up ring 2 is in jagged whole ring type, and back-up ring breach top edge 5 is notch cuttype, and H is more than zero, and remaining is same as in Example 1.
Claims (6)
1. an air filter coarse filtration structure, including back-up ring, described back-up ring is positioned at air inlet and filter element middle position, it is characterized in that back-up ring shape is arc-shaped surface or is jagged whole ring type.
A kind of air filter coarse filtration structure the most according to claim 1, is characterized in that arc-shaped surface curved angle α scope is 60 °-300 °.
A kind of air filter coarse filtration structure the most according to claim 1, is characterized in that back-up ring breach top edge is the one in straight line, curved side, hypotenuse or notch cuttype.
A kind of air filter coarse filtration structure the most according to claim 1, is characterized in that back-up ring and shell flange are integrated part, or back-up ring is single part.
A kind of air filter coarse filtration structure the most according to claim 1, is characterized in that back-up ring bottom inside fixes main filter element or as main cartridge seal face.
A kind of air filter coarse filtration structure the most according to claim 1, is characterized in that back-up ring height exceedes air inlet position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610336123.1A CN105920959A (en) | 2016-05-20 | 2016-05-20 | Rough filtering structure of air filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610336123.1A CN105920959A (en) | 2016-05-20 | 2016-05-20 | Rough filtering structure of air filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105920959A true CN105920959A (en) | 2016-09-07 |
Family
ID=56841880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610336123.1A Pending CN105920959A (en) | 2016-05-20 | 2016-05-20 | Rough filtering structure of air filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105920959A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2505157Y (en) * | 2001-08-03 | 2002-08-14 | 衢州红五环科工贸有限公司 | Air filter |
| CN2717513Y (en) * | 2004-08-16 | 2005-08-17 | 上海弗列加滤清器有限公司 | Spiral-flow type air filter |
| CN202082015U (en) * | 2011-06-08 | 2011-12-21 | 上海弗列加滤清器有限公司 | Tornadotron type prefilter of automobile air intake system |
| US20120192532A1 (en) * | 2008-02-26 | 2012-08-02 | Mann+Hummel Gmbh | Filter Device, Especially Air Filter for an Internal Combustion Engine |
| CN204175470U (en) * | 2014-09-27 | 2015-02-25 | 诸城市海得威机械有限公司 | The efficient coarse filtration air-strainer of blade ring type |
| CN104533673A (en) * | 2015-01-09 | 2015-04-22 | 重庆科克发动机技术有限公司 | Air filtration device |
-
2016
- 2016-05-20 CN CN201610336123.1A patent/CN105920959A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2505157Y (en) * | 2001-08-03 | 2002-08-14 | 衢州红五环科工贸有限公司 | Air filter |
| CN2717513Y (en) * | 2004-08-16 | 2005-08-17 | 上海弗列加滤清器有限公司 | Spiral-flow type air filter |
| US20120192532A1 (en) * | 2008-02-26 | 2012-08-02 | Mann+Hummel Gmbh | Filter Device, Especially Air Filter for an Internal Combustion Engine |
| CN202082015U (en) * | 2011-06-08 | 2011-12-21 | 上海弗列加滤清器有限公司 | Tornadotron type prefilter of automobile air intake system |
| CN204175470U (en) * | 2014-09-27 | 2015-02-25 | 诸城市海得威机械有限公司 | The efficient coarse filtration air-strainer of blade ring type |
| CN104533673A (en) * | 2015-01-09 | 2015-04-22 | 重庆科克发动机技术有限公司 | Air filtration device |
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