CN219034879U - Air filter, engine air inlet system and engineering machinery - Google Patents
Air filter, engine air inlet system and engineering machinery Download PDFInfo
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- CN219034879U CN219034879U CN202320086516.7U CN202320086516U CN219034879U CN 219034879 U CN219034879 U CN 219034879U CN 202320086516 U CN202320086516 U CN 202320086516U CN 219034879 U CN219034879 U CN 219034879U
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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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Abstract
The utility model provides an air filter, an engine air inlet system and engineering machinery, and relates to the technical field of engineering machinery. And the dust accumulated on the main filter element is blown up by reversely blowing the wind pressure device, then the wind pressure device is switched back to the first working state again, and the dust which is blown up after long-time accumulation is discharged to the integration part through the high-speed rotational flow formed by the cyclone tube shell.
Description
Technical Field
The utility model relates to the technical field of engineering machinery, in particular to an air filter, an engine air inlet system and engineering machinery.
Background
The air cleaner is used for filtering dust and impurity in the air, can provide clear air for the engine, reduce engine wear, to the engineering machine tool of working under many dirt environment, can adsorb a large amount of dust and lead to the resistance to increase after using a period, influence engine air input, in order to avoid main filter core just to accumulate and adsorb a large amount of dust in the short time, current air cleaner adopts the cyclone tube shell body to carry out primary filtration before the air gets into main filter core, can form high-speed whirl under the effect of the cyclone structure of cyclone tube shell body inner wall after the air gets into promptly, and then make the air before getting into main filter core, most dust wherein just has passed through the centrifugation and is arranged to the dust collection portion at cyclone tube shell body tail end along the wall surface of cyclone tube shell body, finally slow down the jam condition of main filter core.
However, a small part of dust is not centrifuged to the tail end of the cyclone tube shell, but filtered by the main filter element, and the main filter element still needs to be taken out for a long time to clean the dust on the surface of the air filter element. In addition, when the engine works in a lean air environment such as a plateau or under a poor air flow condition, the power output of the engine is weakened due to insufficient air inflow under natural air intake of the engine.
Disclosure of Invention
The present utility model aims to solve at least one of the above technical problems.
In order to solve the problems, the utility model provides an air filter, which comprises a cyclone tube shell, a main filter element, a dust collecting part and an air pressure device, wherein one end of the cyclone tube shell is provided with an air outlet for being connected with an engine, the dust collecting part is arranged at the other end of the cyclone tube shell, the side wall of the cyclone tube shell is provided with a main air inlet, the main filter element is arranged in the cyclone tube shell, the air pressure device is arranged in the main filter element, the air pressure device is provided with a first working state and a second working state, the air pressure device in the first working state is used for blowing air to the air outlet, and the air pressure device in the second working state is used for blowing air to the main filter element.
Compared with the prior art, the air filter provided by the utility model has the following beneficial effects:
when the wind pressure device is in a first working state, air outside the cyclone tube shell is sucked into the cyclone tube shell through the main air inlet, the cyclone tube shell can adopt the existing cyclone tube shell with a cyclone structure (such as cyclone blades), so that the air can form high-speed cyclone, most dust in the air is discharged to a dust collecting part along the wall surface of the cyclone tube shell after the dust enters the main filter element through the centrifugal action, the air with a small amount of dust after the centrifugal action enters the main filter element after the dust is filtered by the main filter element, finally the air is blown to an air outlet at one end of the cyclone tube shell, and then the air has a certain pressure before entering the engine, and in the first working state of the wind pressure device, the negative pressure at the main air inlet can be formed, so that a large amount of and enough external air can be sucked in even if the external air is rarer or the external air flows smoothly, the air inlet of the engine is finally enhanced, the air inlet of the engine is assisted, the effect of enhancing the air inlet of the engine is realized, and the problem of reducing the power performance of the engine caused by the insufficient air inlet quantity is avoided; along with the increase of the working time of the air filter, the dust adsorbed on the main filter element is gradually increased, at this time, the wind pressure device can be switched to a second working state, the wind pressure device in the second working state does not blow to the air outlet, but reversely blows, namely blows to the main filter element, and then the dust accumulated on the main filter element is blown up to the space between the outer wall of the main filter element and the wall surface of the cyclone tube shell, and then the wind pressure device is switched back to the first working state again, and the dust which is blown up after long-time accumulation is discharged to the integrating part through the high-speed cyclone tube shell, so that the resistance of the main filter element in normal filtration is reduced, the main filter element does not need to be replaced or cleaned manually, the safety guarantee is provided, the environment is not polluted, and the labor intensity is reduced.
Further, the air filter further comprises a differential pressure sensor, and the differential pressure sensor is arranged at the air outlet.
Further, the wind pressure device comprises a wind pressure device body and a wind pressure shell, wherein the wind pressure shell is arranged in the main filter element, the wind pressure device body is arranged at one end of the wind pressure shell, the other end of the wind pressure shell is closed, and a wind hole is formed in the wind pressure shell.
Further, the side wall of the cyclone tube shell is also provided with a secondary air inlet, an annular sealing structure is arranged in the cyclone tube shell, an inner ring of the annular sealing structure is connected with the main filter element, an outer ring of the annular sealing structure is connected with the side wall of the cyclone tube shell, the annular sealing structure is positioned in the axial direction of the cyclone tube shell and between the main air inlet and the secondary air inlet, and the wind pressure device body is positioned between the secondary air inlet and the main air inlet.
Further, the air cleaner further comprises an end cover detachably connected to one end of the cyclone tube housing, which is far away from the air outlet.
Further, the air filter further comprises a safety filter element, the safety filter element is arranged in the main filter element, and the wind pressure device is arranged in the safety filter element.
Further, the wind pressure device is a suction blower or a positive and negative fan.
Further, the dust collection part is a dust collection bag.
The utility model also provides an engine air inlet system which comprises the air filter.
Since technical improvements and advantageous effects of the engine air intake system are the same as those of the air cleaner, the engine air intake system will not be described.
The utility model also provides engineering machinery comprising the engine air inlet system.
Since technical improvements and advantageous effects of the construction machine are the same as those of the engine air intake system, the construction machine will not be described.
Drawings
FIG. 1 is a schematic view of an air cleaner according to an embodiment of the present utility model;
FIG. 2 is a schematic view of the direction of air flow when the wind pressure device according to the embodiment of the present utility model is in the first working state;
fig. 3 is a schematic view illustrating an airflow direction when the wind pressure device according to the embodiment of the utility model is in the second working state.
Reference numerals illustrate:
1. a swirl tube housing; 11. a main air inlet; 12. a secondary air inlet; 13. an air outlet; 2. a main filter element; 3. a safety filter element; 4. a wind pressure device; 41. a wind pressure device body; 42. a wind pressure housing; 5. an end cap; 6. a dust collection part; 7. a differential pressure sensor; 8. an annular seal structure.
Detailed Description
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "front", "rear", "upper", "lower", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Moreover, in the drawings, the X-axis represents the longitudinal direction, i.e., the front-to-back position, and the positive direction of the X-axis (i.e., the arrow of the X-axis is directed) represents the front, and the negative direction of the X-axis (i.e., the direction opposite to the positive direction of the X-axis) represents the rear; the Z-axis in the drawing represents vertical, i.e., up-down position, and the positive direction of the Z-axis (i.e., the arrow pointing in the Z-axis) represents up and down, and the negative direction of the Z-axis (i.e., the direction opposite to the positive direction of the Z-axis).
It should also be noted that the foregoing X-axis and Z-axis are meant to be illustrative of the present utility model and to simplify the description, and are not intended to indicate or imply that the devices or elements referred to must be in a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the utility model.
Referring to fig. 1, an air cleaner according to an embodiment of the present utility model includes a cyclone tube housing 1, a main filter element 2, a dust collecting portion 6, and an air pressure device 4, wherein an air outlet 13 for connection with an engine is provided at one end of the cyclone tube housing 1, the dust collecting portion 6 is provided at the other end of the cyclone tube housing 1, a main air inlet 11 is provided at a side wall of the cyclone tube housing 1, the main filter element 2 is provided in the cyclone tube housing 1, the air pressure device 4 is provided in the main filter element 2, the air pressure device 4 has a first working state and a second working state, the air pressure device 4 in the first working state is used for blowing air to the air outlet 13, and the air pressure device 4 in the second working state is used for blowing air to the main filter element 2.
In this embodiment, when the wind pressure device 4 is in the first working state, the air outside the cyclone tube housing 1 is sucked into the cyclone tube housing 1 from the main air inlet 11, the cyclone tube housing 1 can adopt the existing cyclone tube housing 1 with a cyclone structure (such as a cyclone blade), so that the air can form a high-speed cyclone, and most of the dust in the air is discharged to the dust collecting part 6 along the wall surface of the cyclone tube housing 1 after the centrifugal effect before entering the main filter element 2, the air with a small amount of dust after the centrifugal effect enters the inside of the main filter element 2 after the filtration of the main filter element 2, and finally is blown to the air outlet 13 at one end of the cyclone tube housing 1, and then the air has a certain pressure before entering the inside of the engine, and in the first working state of the wind pressure device 4, because the main air inlet 11 can form a negative pressure, a large amount of and enough external air can be sucked even under the condition that the external air is rarer or the external air circulation is unsmooth, and finally the air quantity of the engine is enhanced, the air intake of the engine is enhanced, the problem of power performance of the engine is avoided due to the insufficient air intake performance of the auxiliary enhancement of the engine is realized.
Along with the increase of the working time of the air filter, the dust adsorbed on the main filter element 2 is gradually increased, at this time, the wind pressure device 4 can be switched to a second working state, the wind pressure device 4 in the second working state does not blow to the air outlet 13 any more, but blows reversely, namely blows to the main filter element 2, and then blows the dust accumulated on the main filter element 2 to the space between the outer wall of the main filter element 2 and the wall surface of the cyclone tube shell 1, and then the wind pressure device 4 is switched back to the first working state again, and the dust blown up after long-time accumulation is discharged to the integration part through the high-speed cyclone formed by the cyclone tube shell 1, so that the resistance of the main filter element 2 during normal filtration is reduced, the main filter element 2 does not need to be replaced or cleaned manually, the safety guarantee is provided, and meanwhile, the labor intensity is reduced.
It should be noted that, in the normal operation of the air cleaner of the present utility model, the specific structure of the cyclone tube housing 1 is to realize that most of the dust in the air is discharged to the dust collecting portion 6 after being centrifuged before entering the main filter element 2, and a related art may be used, and reference may be made to the principle of the related cyclone air cleaner in the prior art, which is not included in the improvements of the present application, so that description and disclosure will not be made.
Referring to fig. 1, the air cleaner may optionally further include a differential pressure sensor 7, and the differential pressure sensor 7 is disposed at the air outlet 13.
In this embodiment, when the wind pressure device 4 is in the first working state, the pressure difference sensor 7 can detect the pressure difference before and after the air enters the main filter element 2, if the pressure difference is large, it indicates that the main filter element 2 is seriously blocked, the main filter element 2 needs to be cleaned, and if the pressure difference is within a reasonable range, it indicates that the main filter element 2 is blocked within a permissible range, and it is not necessary to manually observe the blocking condition of the main filter element 2.
Optionally, the air cleaner further comprises a controller, and the differential pressure sensor 7 and the air pressure device 4 are respectively electrically connected with the controller.
In this embodiment, when the pressure difference detected by the pressure difference sensor 7 is greater than a preset value, the controller only needs to control the wind pressure device 4 to switch to the second working state, and the working state of the wind pressure device 4 does not need to be manually switched.
Referring to fig. 1, alternatively, the wind pressure device 4 includes a wind pressure device body 41 and a wind pressure housing 42, the wind pressure housing 42 is disposed in the main filter element 2, the wind pressure device body 41 is disposed at one end of the wind pressure housing 42, the other end of the wind pressure housing 42 is disposed in a closed manner, and a wind hole is disposed on the wind pressure housing 42.
In this embodiment, when the wind pressure device 4 is in the first working state, the air from the outside sequentially passes through the main air inlet 11 and the main filter element 2, then enters the wind pressure housing 42 through the air hole on the wind pressure housing 42, and then is sent to the engine through the wind pressure device body 41 and the air outlet 13, just like the air flowing direction shown by the arrow in fig. 2.
When the wind pressure device 4 is in the second working state, the connection between the air outlet 13 and the engine can be disconnected, and then the external air can be sucked by the wind pressure device body 41 through the air outlet 13 and then discharged through the air holes so as to blow back the dust adsorbed on the main filter element 2.
When the dust collecting part 6 is opened, the dust in the dust collecting part 6 can be discharged.
The dust collection part 6 may be a dust collection bag having a dust outlet.
Referring to fig. 1, optionally, a secondary air inlet 12 is further provided on a side wall of the cyclone tube housing 1, an annular sealing structure 8 is provided in the cyclone tube housing 1, an inner ring of the annular sealing structure 8 is connected with the main filter element 2, an outer ring of the annular sealing structure 8 is connected with a side wall of the cyclone tube housing 1, in an axial direction (i.e., a front-rear direction shown by an X axis) of the cyclone tube housing 1, the annular sealing structure 8 is located between the main air inlet 11 and the secondary air inlet 12, and the wind pressure device body 41 is located between the secondary air inlet 12 and the main air inlet 11.
In this embodiment, the annular sealing structure 8 divides the space between the cyclone tube housing 1 and the main filter element 2 into a front cavity and a rear cavity, if the main filter element 2 needs to be back-blown in the case of having the secondary air inlet 12, the connection between the air outlet and the engine is not needed to be disconnected, but the main air inlet 11 is closed, the secondary air inlet 12 is opened, and at this time, the air flow direction formed by the air pressure device 4 in the second working state is just the air flow direction shown by the arrow in fig. 3, that is, the external air enters the front cavity from the secondary air inlet 12, then is sucked into the air pressure housing 42 from the front end of the air pressure device body 41, and back-blowing is performed on the main filter element 2 through the air hole.
Of course, when the air filter works normally, the secondary air inlet 12 is closed, the primary air inlet 11 is opened, and then the air pressure device 4 is switched to the first working state.
Referring to fig. 1, the air cleaner optionally further comprises an end cap 5, and the end cap 5 is detachably connected to an end of the cyclone tube housing 1 away from the air outlet 13.
In this embodiment, the rear end of the air filter housing is detachably connected with the end cover 5, if the main filter element 2 is too long in service time, and when a new main filter element 2 needs to be replaced, the end cover 5 can be removed, and the main filter element 2 is replaced through the opening at the rear end of the cyclone tube housing 1.
Wherein, the dust collection part 6 can be a dust collection bag, which can be arranged at the bottom of the end cover 5 and is communicated with the inside of the end cover 5, and the inner space of the end cover 5 can play a role in storing dust.
Referring to fig. 1, the air cleaner optionally further comprises a safety filter element 3, the safety filter element 3 is disposed in the main filter element 2, and the wind pressure device 4 is disposed in the safety filter element 3.
In this embodiment, the safety filter element 3 is disposed inside the main filter element 2, and when the main filter element 2 needs to be replaced, the safety filter element 3 can still play a role in filtering air.
Under the condition of installing the filter element, the air filter comprises two annular sealing structures 8, a large annular sealing structure 8 and a small annular sealing structure 8, the inner ring of the large annular sealing structure 8 is connected with the main filter element 2, the outer ring is connected with the side wall of the cyclone tube shell 1, the inner ring of the small annular sealing structure 8 is connected with the outer wall of the safety filter element 3, the outer ring is connected with the inner wall of the main filter element 2, and the two annular sealing structures 8 are positioned between the secondary air inlet 12 and the main air inlet 11, so that when the air pressure device 4 is in a first working state, air entering from the main air inlet 11 is completely sucked by the rear end of the air pressure device body 41 after passing through the main filter element 2 and the safety filter element 3, the air inlet for engine filtration is improved, and when the air pressure device 4 is in a second working state, the air entering from the secondary air inlet 12 is completely sucked by the front end of the air pressure device body 41 and cannot interfere with air discharged into a rear cavity.
Alternatively, the wind pressure device 4 may be a blower or a positive and negative fan.
Another embodiment of the present utility model also provides an engine air intake system including an air cleaner as described above.
Since technical improvements and advantageous effects of the engine air intake system are the same as those of the air cleaner, the engine air intake system will not be described.
In yet another embodiment, the present utility model also provides a construction machine comprising an engine air intake system as described above
Since technical improvements and advantageous effects of the construction machine are the same as those of the engine air intake system, the construction machine will not be described.
The terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" and "a second" may explicitly or implicitly include at least one such feature.
Although the present disclosure is disclosed above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the scope of the disclosure.
Claims (10)
1. The utility model provides an air cleaner, its characterized in that, includes swirl tube casing (1), main filter core (2), dust collection portion (6) and wind pressure device (4), the one end of swirl tube casing (1) is provided with air outlet (13) that are used for being connected with the engine, dust collection portion (6) set up in the other end of swirl tube casing (1), the lateral wall of swirl tube casing (1) is provided with main air intake (11), main filter core (2) set up in swirl tube casing (1), wind pressure device (4) set up in main filter core (2), wind pressure device (4) have first operating condition and second operating condition, be in first operating condition wind pressure device (4) are used for to air outlet (13) are bloied, be in second operating condition wind pressure device (4) are used for to main filter core (2) are bloied.
2. The air cleaner according to claim 1, further comprising a differential pressure sensor (7), the differential pressure sensor (7) being arranged at the air outlet (13).
3. The air cleaner according to claim 1, wherein the air pressure device (4) comprises an air pressure device body (41) and an air pressure housing (42), the air pressure housing (42) is arranged in the main filter element (2), the air pressure device body (41) is arranged at one end of the air pressure housing (42), the other end of the air pressure housing (42) is arranged in a closed manner, and an air hole is formed in the air pressure housing (42).
4. An air cleaner according to claim 3, wherein the side wall of the cyclone casing body (1) is further provided with a secondary air inlet (12), an annular sealing structure (8) is arranged in the cyclone casing body (1), an inner ring of the annular sealing structure (8) is connected with the main filter element (2), an outer ring of the annular sealing structure (8) is connected with the side wall of the cyclone casing body (1), in an axial direction of the cyclone casing body (1), the annular sealing structure (8) is arranged between the main air inlet (11) and the secondary air inlet (12), and the wind pressure device body (41) is arranged between the secondary air inlet (12) and the main air inlet (11).
5. An air cleaner according to claim 1, further comprising an end cap (5), said end cap (5) being detachably connected to an end of the cyclone tube housing (1) remote from the air outlet (13).
6. The air cleaner of claim 1, further comprising a safety filter element (3), the safety filter element (3) being disposed within the main filter element (2), the wind pressure device (4) being disposed within the safety filter element (3).
7. The air cleaner according to claim 1, wherein the wind pressure device (4) is a suction blower or a forward and reverse fan.
8. An air cleaner according to claim 1, wherein the dust collection part (6) is a dust bag.
9. An engine air intake system comprising an air cleaner according to any one of claims 1-8.
10. A construction machine comprising the engine air intake system according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320086516.7U CN219034879U (en) | 2023-01-30 | 2023-01-30 | Air filter, engine air inlet system and engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320086516.7U CN219034879U (en) | 2023-01-30 | 2023-01-30 | Air filter, engine air inlet system and engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219034879U true CN219034879U (en) | 2023-05-16 |
Family
ID=86285884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320086516.7U Active CN219034879U (en) | 2023-01-30 | 2023-01-30 | Air filter, engine air inlet system and engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219034879U (en) |
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2023
- 2023-01-30 CN CN202320086516.7U patent/CN219034879U/en active Active
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