CN214616820U - Multifunctional air inlet channel structure - Google Patents
Multifunctional air inlet channel structure Download PDFInfo
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- CN214616820U CN214616820U CN202120855962.0U CN202120855962U CN214616820U CN 214616820 U CN214616820 U CN 214616820U CN 202120855962 U CN202120855962 U CN 202120855962U CN 214616820 U CN214616820 U CN 214616820U
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- air inlet
- filter element
- honeycomb filter
- filtering module
- air
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Abstract
The utility model discloses a multifunctional air inlet channel structure, which comprises a pre-filtering module, wherein the air flow direction is taken as the downstream direction, the air inlet end of the pre-filtering module is connected with the upstream air inlet or directly communicated with the atmosphere, and the air outlet end of the pre-filtering module is connected with the air inlet end of a honeycomb filter element; the air outlet end of the honeycomb filter element is connected with the air inlet end of the silencing cavity, and the air outlet end of the silencing cavity is connected with a downstream air inlet channel and used for supplying air to the engine; the pre-filtering module and the honeycomb filter element are both arranged in the shell, and the shell at the air outlet end of the honeycomb filter element is downwards connected with the silencing cavity. Adopt the utility model discloses a length of whole intake duct has been shortened to the structure, has reduced the air resistance of intake duct, has promoted commercial car fuel economy. The pre-filtering module reduces the filtering load of the honeycomb filter element, thereby prolonging the service life of the honeycomb filter element. The noise elimination cavity has reduced the noise, promotes the use travelling comfort of commercial car. The utility model discloses the filter effect is good, the structure integration degree is high, possesses functions such as prefilter, filtration and noise elimination.
Description
Technical Field
The utility model relates to a commercial car engine air intake system technical field especially relates to the modularized design and the structural integration of intake duct and air cleaner part structure.
Background
The air intake system of the existing commercial vehicle generally comprises an air inlet channel, a hose, an air filter and a plurality of pipelines. The utility model integrates the functions of the air inlet channel and the air filter in the prior art; meanwhile, the noise characteristics of the commercial vehicle engine are measured and analyzed, and a silencing element is designed inside the air inlet channel, so that the air inlet channel has the functions of silencing and reducing noise.
The utility model discloses aim at promoting commercial car driving comfort, because the pipeline shortens can reduce the air intake resistance simultaneously, further promote commercial car fuel economy.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a multi-functional intake duct structure that filter effect is good, the structure integration degree is high possesses functions such as prefilter, filtration and noise elimination.
In order to achieve the above object, the utility model discloses a multi-functional intake duct structure, including pre-filtering the module to the air current direction is the downstream direction, and the inlet end of pre-filtering the module links to each other with the upper reaches air inlet or directly communicates with each other with the atmosphere, its characterized in that: the air outlet end of the pre-filtering module is connected with the air inlet end of the honeycomb filter element; the air outlet end of the honeycomb filter element is connected with the air inlet end of the silencing cavity, and the air outlet end of the silencing cavity is connected with a downstream air inlet channel and used for supplying air to the engine;
the pre-filtering module and the honeycomb filter element are both arranged in the shell, and the shell at the air outlet end of the honeycomb filter element is downwards connected with the silencing cavity.
The pre-filtering module is of an air inlet grille structure.
The pre-filtering module comprises a plurality of cyclone tubes which are arranged in parallel at intervals, and impellers are respectively arranged in the middle positions of the cyclone tubes in the axial direction; an air outlet pipe is sleeved in the rotational flow pipe in the downstream direction of the impeller, annular gaps for sundries to flow out are formed between the air outlet pipe and the inner wall of the rotational flow pipe, the annular gaps of the rotational flow pipes are communicated with a dust exhaust port at the bottom of the shell through a dust exhaust passage in the shell, and a dust exhaust check valve is arranged at the dust exhaust port; the air outlet pipe of each cyclone pipe is communicated with the air inlet end of the honeycomb filter element through an air outlet passage in the shell; the upstream end of each cyclone tube is used as the air inlet end of the pre-filtering module and is connected with an upstream air inlet or directly communicated with the atmosphere.
An expansion cavity structure and/or a Helmholtz resonant cavity structure are/is arranged in the silencing cavity.
The honeycomb filter element is connected with the inner wall of the shell through the sealant to form radial seal.
The utility model discloses have following advantage:
adopt the utility model discloses a structure no longer has the intake duct between pre-filtering module and honeycomb filter core, honeycomb filter core and the noise elimination cavity, therefore has shortened the length of whole intake duct by a wide margin, has reduced the air resistance of intake duct, has promoted commercial car fuel economy.
The arrangement of the pre-filtering module greatly reduces the filtering load of the honeycomb filter element, thereby prolonging the service life of the honeycomb filter element. The noise elimination cavity has reduced the noise, promotes the use travelling comfort of commercial car.
If the air in the main scene of the target customer vehicle is relatively clean (such as an expressway), a complex structure with a relatively better pre-filtering effect is not needed, and the air inlet grille is adopted to block larger sundries. The use of an intake grill allows for cost reduction while meeting specific customer needs. Dust exhaust check valve compares the dust exhaust mouth, can prevent that impurity from getting into by dust exhaust mouth department refluence the utility model discloses inside
The structure of swirl tube with the impeller can separate a large amount of impurity and rainwater before the air current gets into the honeycomb filter core, plays good pre-filtering effect, alleviates the filter load of honeycomb filter core by a wide margin, prolongs its life. The expansion cavity structure and the Helmholtz resonant cavity are mainly used for medium and low frequency noise elimination and are suitable for the air inlet passage of a commercial vehicle.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a schematic view of a straight-flow cyclone tube;
fig. 4 is a schematic structural view of the impeller.
Detailed Description
Example one
As shown in fig. 1 to 4, the utility model discloses a multifunctional air inlet channel structure comprises a pre-filtering module 1, which takes the air flow direction as the downstream direction, the air inlet end of the pre-filtering module 1 is connected with the upstream air inlet or directly communicated with the atmosphere, and the air outlet end of the pre-filtering module 1 is connected with the air inlet end of a honeycomb filter element 2; the air outlet end of the honeycomb filter element 2 is connected with the air inlet end of the silencing cavity 3, and the air outlet end of the silencing cavity 3 is connected with a downstream air inlet channel and used for supplying air to the engine; the upstream inlet is of conventional construction and is not shown. The honeycomb filter element 2 and the silencing cavity 3 are both conventional technologies, and the silencing cavity 3 is used for utilizing sound wave reflection to offset, so that the transmission noise of the engine is reduced, and the details are not described.
The pre-filtering module 1 and the honeycomb filter element 2 are both arranged in a shell 9, and the shell 9 at the air outlet end of the honeycomb filter element 2 is downwards connected with the silencing cavity 3.
A plurality of passive silencing element structures can be arranged in the silencing cavity 3, different silencing elements are arranged according to different-order noises of the engine, and the elements can be selectively installed in the silencing cavity 3.
Adopt the utility model discloses a structure no longer has the intake duct between pre-filtering module 1 and honeycomb filter core 2, honeycomb filter core 2 and the noise elimination cavity 3, therefore has shortened the length of whole intake duct by a wide margin, has reduced the air lock of intake duct, has promoted commercial car fuel economy.
The arrangement of the pre-filtering module 1 greatly reduces the filtering load of the honeycomb filter element 2, thereby prolonging the service life of the honeycomb filter element 2. Noise is reduced by the noise elimination cavity 3, and the use comfort of the commercial vehicle is improved.
The pre-filtering module 1 comprises a plurality of cyclone tubes 4 which are arranged in parallel at intervals, and impellers 5 are respectively arranged in the cyclone tubes 4 at the axial middle positions of the cyclone tubes 4; an air outlet pipe 6 is sleeved in the cyclone pipe 4 in the downstream direction of the impeller 5, an annular gap 7 for sundries to flow out is arranged between the air outlet pipe 6 and the inner wall of the cyclone pipe 4, the annular gap 7 of each cyclone pipe 4 is communicated with a dust exhaust port 8 at the bottom of the shell 9 through a dust exhaust passage in the shell 9, and a dust exhaust check valve is arranged at the dust exhaust port 8; the air outlet pipe 6 of each cyclone pipe 4 is communicated with the air inlet end of the honeycomb filter element 2 through an air outlet passage in the shell 9; the upstream end of each cyclone tube 4 is used as the air inlet end of the pre-filtering module 1 and is connected with the upstream air inlet or directly communicated with the atmosphere.
The one-way valve is of conventional construction and is not shown in the figures. The dust exhaust passage and the air outlet passage are both in a conventional hole shape or a cavity shape, which is not shown in the figure. The impeller 5 and the cyclone tube 4 can form a straight-flow cyclone tube 4 or a counter-flow cyclone tube 4. The dust exhaust check valve can be a manually operated check valve or an electromagnetic check valve and is controlled by an automobile ECU.
Swirl tube 4 adds impeller 5's structure, can get into honeycomb filter element 2 before the air current with a large amount of impurity and rainwater separation go out, play good prefilter effect, alleviate honeycomb filter element 2's filtration load by a wide margin, prolong its life.
An expansion cavity structure and/or a Helmholtz resonant cavity structure are/is arranged in the silencing cavity 3. The expansion chamber structure and the helmholtz resonator structure are conventional in the art and are not shown. The silencing elements in the silencing cavity can be composed of various structures and are respectively suitable for eliminating noises with different frequencies, and according to the noise characteristics of the diesel engine, the silencing elements are mainly used for eliminating the noises with medium and low frequencies, so the structures of the silencing elements usually comprise an expansion cavity, a resonant cavity, an inserted expansion cavity and the like. The expansion cavity structure and the Helmholtz resonant cavity are mainly used for medium and low frequency noise elimination and are suitable for an air inlet channel of a commercial vehicle; wherein, the noise elimination frequency of expansion chamber is wider than the noise elimination frequency of Helmholtz resonant cavity, and the designer specifically chooses for use according to the characteristics of specific motorcycle type.
The honeycomb filter element 2 is connected with the inner wall of the shell 9 through sealant to form radial seal, and the sealing reliability is improved. The utility model discloses in, prefilter module 1, honeycomb filter core 2 and noise elimination cavity 3 can customize according to vehicle manufacturer's demand, and the order of admitting air of three also can adjust according to vehicle manufacturer's demand, assemble into the intake duct assembly at last. If the vehicle manufacturer does not need the sound-damping chamber 3, it can be eliminated.
Use straight-flow cyclone tube 4 as an example, during operation, the air is inhaled by 4 upstream ends of cyclone tube, and impeller 5 is rotatory under the effect of air current, and when dirty (impurity) gas was through rotatory impeller 5, impurity and rainwater in the air were got rid of to the pipe wall of cyclone tube 4 under the effect of centrifugal force, and then got into annular gap 7, accumulated in dust exhaust check valve department through the dust exhaust passageway, and periodic discharge or discharge by manual control. Meanwhile, clean air enters the honeycomb filter element 2 through the air outlet passage for further filtering and purification, and the filtered clean air is supplied to an engine for combustion through the silencing cavity 3 and a downstream air inlet.
Example two
The difference between the present embodiment and the first embodiment is: the pre-filtering module 1 is of an air inlet grille structure. The intake grill is of conventional construction and is not shown.
If the air in the main scene of the target customer vehicle is relatively clean (such as an expressway), a complex structure with a relatively better pre-filtering effect is not needed, and the air inlet grille is adopted to block larger sundries. The use of an intake grill allows for cost reduction while meeting specific customer needs.
The above embodiments are only used for illustrating but not limiting the technical solutions of the present invention, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the present invention may be modified or substituted with equivalents without departing from the spirit and scope of the invention, which should be construed as being limited only by the claims.
Claims (5)
1. A multifunctional air inlet structure comprises a pre-filtering module, wherein the direction of air flow is the downstream direction, the air inlet end of the pre-filtering module is connected with an upstream air inlet or directly communicated with the atmosphere, and the multifunctional air inlet structure is characterized in that: the air outlet end of the pre-filtering module is connected with the air inlet end of the honeycomb filter element; the air outlet end of the honeycomb filter element is connected with the air inlet end of the silencing cavity, and the air outlet end of the silencing cavity is connected with a downstream air inlet channel and used for supplying air to the engine;
the pre-filtering module and the honeycomb filter element are both arranged in the shell, and the shell at the air outlet end of the honeycomb filter element is downwards connected with the silencing cavity.
2. The multifunctional air inlet duct structure according to claim 1, characterized in that: the pre-filtering module is of an air inlet grille structure.
3. The multifunctional air inlet duct structure according to claim 1, characterized in that: the pre-filtering module comprises a plurality of cyclone tubes which are arranged in parallel at intervals, and impellers are respectively arranged in the middle positions of the cyclone tubes in the axial direction; an air outlet pipe is sleeved in the rotational flow pipe in the downstream direction of the impeller, annular gaps for sundries to flow out are formed between the air outlet pipe and the inner wall of the rotational flow pipe, the annular gaps of the rotational flow pipes are communicated with a dust exhaust port at the bottom of the shell through a dust exhaust passage in the shell, and a dust exhaust check valve is arranged at the dust exhaust port; the air outlet pipe of each cyclone pipe is communicated with the air inlet end of the honeycomb filter element through an air outlet passage in the shell; the upstream end of each cyclone tube is used as the air inlet end of the pre-filtering module and is connected with an upstream air inlet or directly communicated with the atmosphere.
4. A multifunctional air inlet channel structure according to any one of claims 1 to 3, characterized in that: an expansion cavity structure and/or a Helmholtz resonant cavity structure are/is arranged in the silencing cavity.
5. A multifunctional air inlet channel structure according to any one of claims 1 to 3, characterized in that: the honeycomb filter element is connected with the inner wall of the shell through the sealant to form radial seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120855962.0U CN214616820U (en) | 2021-04-25 | 2021-04-25 | Multifunctional air inlet channel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120855962.0U CN214616820U (en) | 2021-04-25 | 2021-04-25 | Multifunctional air inlet channel structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214616820U true CN214616820U (en) | 2021-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120855962.0U Active CN214616820U (en) | 2021-04-25 | 2021-04-25 | Multifunctional air inlet channel structure |
Country Status (1)
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|---|---|
| CN (1) | CN214616820U (en) |
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2021
- 2021-04-25 CN CN202120855962.0U patent/CN214616820U/en active Active
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