CN212716940U - Air filter - Google Patents
Air filter Download PDFInfo
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- CN212716940U CN212716940U CN202021249323.1U CN202021249323U CN212716940U CN 212716940 U CN212716940 U CN 212716940U CN 202021249323 U CN202021249323 U CN 202021249323U CN 212716940 U CN212716940 U CN 212716940U
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- air
- cylindrical barrel
- filter
- air inlet
- arc
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Abstract
The application discloses empty filter includes: the air inlet device comprises a cylindrical barrel, wherein one end of the cylindrical barrel is provided with an air outlet, the other end of the cylindrical barrel is closed, and the circumferential side surface of the cylindrical barrel is provided with an air inlet; the main filtering component is arranged in the inner cavity of the cylindrical barrel; the air inlet is arranged in the inner cavity of the cylindrical barrel, the arc-shaped guide plate is arranged on the outer side of the main filtering component in the radial direction of the cylindrical barrel, and the arc-shaped guide plate is aligned with the air inlet, so that air entering the inner cavity from the air inlet flows around the main filtering component in the circumferential direction under the guide of the arc-shaped guide plate. The air filter has simple structure and small volume while improving the filtering efficiency.
Description
Technical Field
The application relates to the technical field of engines, in particular to an air filter.
Background
At present, the air filters used on the engines have various types, and although the different types of air filters have respective advantages, the different types of air filters also have respective disadvantages, such as complex structure, large volume, few filtering stages of the air filters, low filtering efficiency and the like.
SUMMERY OF THE UTILITY MODEL
In view of this, the present application provides an empty filter of novel structure, and it possesses simple structure and the high advantage of filtration efficiency simultaneously.
In order to achieve the above purpose, the present application provides the following technical solutions:
an air filter comprising:
the air inlet device comprises a cylindrical barrel, wherein one end of the cylindrical barrel is provided with an air outlet, the other end of the cylindrical barrel is closed, and the circumferential side surface of the cylindrical barrel is provided with an air inlet;
the main filtering component is arranged in the inner cavity of the cylindrical barrel;
the air inlet is arranged in the inner cavity of the cylindrical barrel, the arc-shaped guide plate is arranged on the outer side of the main filtering component in the radial direction of the cylindrical barrel, and the arc-shaped guide plate is aligned with the air inlet, so that air entering the inner cavity from the air inlet flows around the main filtering component in the circumferential direction under the guide of the arc-shaped guide plate.
Preferably, the air filter further comprises a pre-filter assembly disposed on the air inlet.
Preferably, in the above air filter, the prefilter assembly is a cyclone tube assembly, the cyclone tube assembly includes a housing and a plurality of parallel straight-through cyclone tubes disposed in the housing, and all of the straight-through cyclone tubes are full of the air inlet.
Preferably, in the air filter, the inner cavity of the cylindrical barrel includes a filter chamber for accommodating the main filter component and allowing air to flow circumferentially around the main filter component, and a dust collecting chamber for accommodating filtered dust, and the inner cavity of the housing is communicated with the dust collecting chamber.
Preferably, in the above air filter, a first dust discharge valve for discharging filtered dust is provided at a bottom of the housing.
Preferably, in the air filter, the arc-shaped guide plate is concentric with the cylindrical barrel.
Preferably, in the air filter, an air outlet end is arranged at one end of the cylindrical barrel body, which is provided with the air outlet, and the air inlet is arranged close to the air outlet end.
Preferably, in the air filter, the cylindrical barrel is provided with a second dust exhaust valve for controlling the opening and closing of the dust collection chamber.
Preferably, in the air filter, the main filter member is a paper filter element.
The application provides an air filter, main filter element and arc guide plate are arranged in the cylindrical barrel, because the arc guide plate is arranged in alignment with the air inlet, and the air entering the inner cavity of the cylindrical barrel can be guided to flow around the circumference of the main filter element, and in the circumferential flow process, under the action of centrifugal force, the dust with larger weight mixed in the air can be separated from the air, so that primary filtration is realized, then the air is filtered again by the main filter element when entering the main filter element, thereby realizing multiple times of filtration of the air, improving the filtration efficiency of the air filter, and because the main filter element and the arc guide plate are arranged in the cylindrical barrel, the whole volume of the air filter is still the original volume of the cylindrical barrel, the air filter can not lead to the increase of the volume while improving the filtration efficiency, and further, the air filter with simple structure and small volume can be more easily arranged and installed on engines with various models.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an air filter provided in an embodiment of the present application;
FIG. 2 is a schematic view of a structure in which a cylindrical barrel, an arc-shaped baffle and an air inlet are matched;
FIG. 3 is a front view of the structure shown in FIG. 2;
fig. 4 is a sectional view of the air filter.
In fig. 1-4:
1-a cylindrical barrel, 2-an air outlet, 3-an air inlet, 4-a main filtering component, 5-an arc-shaped guide plate, 6-a pre-filtering component, 7-a filtering cavity, 8-a dust collecting cavity, 9-a first dust exhaust valve and 10-a second dust exhaust valve;
601-shell, 602-straight cyclone tube.
Detailed Description
The application provides an empty filter of novel structure, and it possesses simple structure and the high advantage of filtration efficiency simultaneously.
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
As shown in fig. 1-4 (in fig. 4, arrows represent air, and dots represent dust), the present application provides an air filter, which is suitable for an engine, and mainly includes a cylindrical barrel 1, a main filter component 4, and an arc-shaped baffle 5, wherein the cylindrical barrel 1 is a main structure of the air filter, and is a housing for accommodating the main filter component 4 and the arc-shaped baffle 5, one of two ends of the cylindrical barrel 1 is an open end with an opening, and the other end is a closed end, and the opening of the open end is an air outlet 2 for filtered air, the air flows out through the air outlet 2 and enters the engine, and an air inlet 3 for allowing air to enter an inner cavity of the cylindrical barrel 1 is opened on a circumferential side of the cylindrical barrel 1 to realize tangential air intake to the inner cavity of the cylindrical barrel 1; the main filtering component 4 is a component which plays a main filtering role for air, is a core component of the air filter, is cylindrical, is coaxially arranged with the air outlet 2 and the cylindrical barrel 1, and can flow out of the air outlet 2 after the air entering the inner cavity of the cylindrical barrel 1 is finally filtered by the main filtering component 4; the arc-shaped guide plate 5 is also arranged in the inner cavity of the cylindrical barrel 1 and is positioned outside the main filter part 4 in the radial direction of the cylindrical barrel 1, namely the arc-shaped guide plate 5 is arranged between the circumferential outer wall of the main filter part 4 and the circumferential inner wall of the cylindrical barrel 1, and the arc-shaped guide plate 5 is also arranged in alignment with the air inlet 3 on the circumferential side surface, so that the air entering the inner cavity from the air inlet 3 can be directly blown onto the arc-shaped guide plate 5, and further the arc-shaped guide plate 5 guides the air entering the inner cavity, so that the air flows circumferentially around the main filter part 4, namely the air flows spirally along the circumferential inner wall of the cylindrical barrel 1, and in the spiral flowing process, the dust in the air can be thrown to one end (namely the closed end) of the cylindrical barrel 1 under the action of centrifugal force, thereby realizing the separation of the dust and the, in this way, the air is filtered once, and then the air enters the main filtering component 4 and is filtered once by the main filtering component 4.
The empty filter of above-mentioned structure, through setting up arc guide plate 5, can realize the filtration many times to the air with the cooperation of main filtering component 4, make the filtration efficiency of empty filter obtain improving, simultaneously because arc guide plate 5 and main filtering component 4 all set up the inside at cylindrical barrel 1, make the volume of empty filter still be cylindrical barrel 1's volume, the volume of empty filter does not increase, that is to say, the empty filter that this application provided still has simple structure, less volume when improving filtration efficiency.
In order to further optimize the technical solution, the air filter provided by the present application preferably further includes a pre-filter assembly 6 disposed on the air inlet 3, as shown in fig. 1 and 4. By providing this pre-filter assembly 6 on the air inlet 3, a further filtration can be carried out before the air enters the inner cavity of the cylindrical cartridge 1, namely: the air carries out first order filtration through prefiltering subassembly 6 earlier in whole filtering process, and after accomplishing first order filtration, the air enters into the inner chamber of cylindrical barrel 1, and spiral flow carries out the second level filtration under the water conservancy diversion of arc guide plate 5, later enters into again and carries out the third level filtration in main filter element 4, so can further improve the filtration efficiency of altitude filter.
Preferably, as shown in fig. 1 and 4, the pre-filter assembly 6 is a cyclone tube assembly comprising a housing 601 and a plurality of parallel arranged straight cyclone tubes 602 disposed in the housing 601, and all of the straight cyclone tubes 602 are distributed over the air inlet 3. The straight-through cyclone tube 602 has a simple structure and a small volume, and does not cause the volume of the air filter to be too large while improving the filtering efficiency. The plurality of straight cyclone tubes 602 are distributed over the air inlet 3, so that the filtering efficiency can be improved to the maximum extent.
The specific filtering process of the air filter with the structure comprises the following steps: when air enters the air inlet 3, the air generates rotational flow under the guidance of rotational flow blades at the inlet of the straight-through rotational flow pipe 602, and dust is centrifugally separated and falls into the inner cavity of the shell 601; after the air after primary filtration enters the inner cavity of the cylindrical barrel 1, rotational flow is generated under the action of the arc-shaped guide plate 5, and dust is thrown backwards to the closed end along the inner wall of the cylindrical barrel 1 so as to realize secondary filtration; the air after twice filtration enters the main filtering component 4 to complete the third stage of filtration, and the air after the third stage of filtration is discharged out of the cylindrical barrel 1 from the air outlet 2.
As shown in fig. 4, the inner cavity of the cylindrical barrel 1 includes a filter chamber 7 for accommodating the main filter member 4 and allowing air to flow circumferentially around the main filter member 4, and a dust collecting chamber 8 for accommodating filter dust (the filter dust refers to dust obtained by filtering), and the inner cavity of the housing 601 communicates with the dust collecting chamber 8. The inner cavity of the cylindrical barrel body 1 comprises the filter cavity 7 and the dust collecting cavity 8, so that the dust containing amount of the air filter can be increased by additionally arranging the dust collecting cavity 8 on the basis of ensuring three-stage filtration, the maintenance period of the air filter is further prolonged, and the air filter has a better using effect. The reason why the inner cavity of the housing 601 of the pre-filter assembly 6 is communicated with the dust collecting cavity 8 is that, as mentioned above, when the first-stage filtration is performed, the filtered dust obtained by the filtration falls into the inner cavity of the housing 601, and after the inner cavity of the housing 601 is communicated with the dust collecting cavity 8, the part of the filtered dust can be guided into the dust collecting cavity 8 to be concentrated and stored, so that the influence on the filtering effect of the pre-filter assembly 6 caused by the excessive accumulation of the filtered dust in the inner cavity of the housing 601 is avoided.
Alternatively, a first dust discharge valve 9 for discharging filtered dust may be provided directly at the bottom of the housing 601, as shown in fig. 1. By arranging the first dust exhaust valve 9 on the housing 601, the filter dust accumulated in the inner cavity of the housing 601 can be directly exhausted, i.e. the filter dust does not enter the dust collection cavity 8 any more for storage, so that the filter effect of the pre-filter assembly 6 can be ensured.
Preferably, as shown in fig. 2 and 3, the arc-shaped guide plate 5 is arranged concentrically with the cylindrical barrel 1. After concentric setting, can improve arc guide plate 5's water conservancy diversion effect, messenger's air that can be better carries out the spiral flow along cylindrical barrel 1's circumference inner wall, and then improves the filterable filter effect of second grade.
Further, as shown in fig. 2 and 4, the end of the cylindrical barrel 1 provided with the air outlet 2 is an air outlet end, and preferably the air inlet 3 is arranged close to the air outlet end. So set up, can make air inlet 3 and the blind end (being the position of dust collecting chamber 8) of cylindrical barrel 1 have bigger distance to make the air that enters into cylindrical barrel 1 inner chamber can have bigger flow stroke, and along with the increase of air flow stroke, can be more abundant get rid of the blind end of cylindrical barrel 1 with the dust in the air, so set up so and can further improve secondary filter's filter effect, consequently regard it as the preferred mode of setting of this application.
As shown in fig. 1, the cylindrical barrel 1 is provided with a second dust exhaust valve 10 for controlling the opening and closing of the dust collecting chamber 8, and the second dust exhaust valve is used for exhausting the filtered dust in the dust collecting chamber 8.
In addition, the main filter member 4 is preferably a paper filter element, which is preferable because it not only has a good filtering effect, but also can be well adapted to the cylindrical barrel 1 in terms of shape, size, volume, etc.
The structure of each part is described in a progressive mode in the specification, the structure of each part is mainly described to be different from the existing structure, and the whole structure and the part structure of the air filter can be obtained by combining the structures of the parts.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. An air filter, comprising:
the air inlet device comprises a cylindrical barrel, wherein one end of the cylindrical barrel is provided with an air outlet, the other end of the cylindrical barrel is closed, and the circumferential side surface of the cylindrical barrel is provided with an air inlet;
the main filtering component is arranged in the inner cavity of the cylindrical barrel;
the air inlet is arranged in the inner cavity of the cylindrical barrel, the arc-shaped guide plate is arranged on the outer side of the main filtering component in the radial direction of the cylindrical barrel, and the arc-shaped guide plate is aligned with the air inlet, so that air entering the inner cavity from the air inlet flows around the main filtering component in the circumferential direction under the guide of the arc-shaped guide plate.
2. The air filter of claim 1, further comprising a pre-filter assembly disposed on the air inlet.
3. The air filter according to claim 2, wherein the prefilter assembly is a cyclone tube assembly, the cyclone tube assembly comprises a housing and a plurality of parallel straight-through cyclone tubes disposed in the housing, and all of the straight-through cyclone tubes are covered with the air inlet.
4. An air cleaner according to claim 3 wherein the interior chamber of the cylindrical cartridge includes a filter chamber for receiving the main filter element and for allowing air to flow circumferentially around the main filter element, and a dust collection chamber for receiving filtered dust, the interior chamber of the housing communicating with the dust collection chamber.
5. An air filter according to claim 3, wherein a first dust discharge valve for discharging filtered dust is provided at a bottom of the housing.
6. The air filter according to claim 1, wherein the arc-shaped baffle is concentrically disposed with the cylindrical barrel.
7. The air filter of claim 1, wherein the end of the cylindrical barrel at which the air outlet is disposed is an air outlet end, and the air inlet is disposed adjacent to the air outlet end.
8. The air filter according to claim 4, wherein a second dust exhaust valve for controlling the opening and closing of the dust collection chamber is arranged on the cylindrical barrel.
9. The air filter according to claim 1, wherein the main filter member is a paper filter element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021249323.1U CN212716940U (en) | 2020-06-30 | 2020-06-30 | Air filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021249323.1U CN212716940U (en) | 2020-06-30 | 2020-06-30 | Air filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212716940U true CN212716940U (en) | 2021-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021249323.1U Active CN212716940U (en) | 2020-06-30 | 2020-06-30 | Air filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212716940U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115263626A (en) * | 2022-09-02 | 2022-11-01 | 中国重汽集团济南动力有限公司 | Oil-immersed air prefilter |
-
2020
- 2020-06-30 CN CN202021249323.1U patent/CN212716940U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115263626A (en) * | 2022-09-02 | 2022-11-01 | 中国重汽集团济南动力有限公司 | Oil-immersed air prefilter |
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