CN209067386U - Silencing means and automobile for engine aspirating system - Google Patents
Silencing means and automobile for engine aspirating system Download PDFInfo
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- CN209067386U CN209067386U CN201821877536.1U CN201821877536U CN209067386U CN 209067386 U CN209067386 U CN 209067386U CN 201821877536 U CN201821877536 U CN 201821877536U CN 209067386 U CN209067386 U CN 209067386U
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- air inlet
- connecting tube
- silencing means
- cavity
- inlet pipe
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- Exhaust Silencers (AREA)
Abstract
The utility model discloses a kind of silencing means and automobile for engine aspirating system, is related to technical field of engines, has the characteristics that excellent noise reduction effect and easy for installation.The silencing means includes air inlet pipe, resonant cavity and cavity connecting tube, and through-hole is offered on the tube wall of air inlet pipe, and one end of cavity connecting tube is connected to by through-hole with air inlet pipe, and the other end of cavity connecting tube is connected to resonant cavity；Wherein, air inlet pipe includes tracheae ontology and the interconnecting piece and intake section that tracheae ontology both ends are arranged in, interconnecting piece is threadedly coupled with the air inlet of engine air throttle, and the caliber of air inlet tube body gradually smoothly expands from interconnecting piece to intake section, and air inlet tube body is in gentle transition type S type curvilinear structures.The automobile includes the silencing means that above-mentioned technical proposal is mentioned.
Description
Technical field
The utility model relates to technical field of engines more particularly to a kind of silencing means for engine aspirating system
And automobile.
Background technique
Air inlet pipe is the essential component of engine aspirating system, and the inlet end of air inlet pipe is fixed on body of a motor car
Front beam on, the other end is connected by air cleaner with engine.The meeting when gas is entered in engine by air inlet pipe
Biggish noise is generated, in order to reduce noise, is come into being with the silencing means that engine aspirating system is used cooperatively, it is existing
Silencing means mainly passes through wavelength tube and eliminates to noise, but since the volume of wavelength tube is larger, therefore use such set
The drawback that the silencing means of meter has installation inconvenient.
Utility model content
The purpose of this utility model is to provide a kind of silencing means and automobile for engine aspirating system, the noise reductions
Device has the characteristics that excellent noise reduction effect and easy for installation.
To achieve the goals above, the one side of the utility model provides a kind of noise reduction dress for engine aspirating system
It sets, for being mounted on the air inlet of engine air throttle, the silencing means includes that air inlet pipe, resonant cavity are connected with cavity
It manages, through-hole is offered on the tube wall of the air inlet pipe, one end of the cavity connecting tube is connected to by through-hole with the air inlet pipe,
The other end of the cavity connecting tube is connected to the resonant cavity；Wherein,
The air inlet pipe includes tracheae ontology and the interconnecting piece and intake section that tracheae ontology both ends are arranged in, the connection
Portion is threadedly coupled with the air inlet of engine air throttle, and the caliber of the air inlet tube body is from the interconnecting piece to the intake section
It is gradually smooth to expand, and the air inlet tube body is in gentle transition type S type curvilinear structures.
Preferably, the inner diameter of the intake section along tracheae ontology junction to far from the tracheae ontology by
It is gradually smooth to expand, form a horn mouth.
Preferably, being equipped with airstrainer in the intake section.
Preferably, opening up for the through-hole is located proximate to the interconnecting piece, and the aperture of the through-hole is connect with the cavity
The caliber of pipe is identical.
Preferably, the cavity connecting tube is arced tube structure, and the arc core of the cavity connecting tube is close to the connection
Portion.
It optionally, further include the stiffening plate being located between the cavity connecting tube and the tracheae ontology.
Preferably, the resonant cavity includes frame and the cover board that the frame two sides are arranged in, the cover board with it is described
Frame is connected using cambered surface transition.
Preferably, the cavity connecting tube and the setting relationship of the resonant cavity meet f=(C/2pi) * [S/ (L*V)]1/2；
Wherein, C is the aerial spread speed of sound, and L is the length of cavity connecting tube, and S is the caliber of cavity connecting tube, and V is humorous
The volume of vibration chamber, f are resonant cavity noise elimination centre frequency.
Preferably, the frame is equipped with support frame, and support frame as described above is equipped with the threaded hole fixed by bolt cooperation.
Compared with prior art, the silencing means provided by the utility model for engine aspirating system has with following
Beneficial effect:
In silencing means provided by the utility model for engine aspirating system, by air inlet pipe, resonant cavity and cavity
Connecting tube is constituted, and one end of cavity connecting tube is connected to by through-hole with air inlet pipe, and the other end and resonant cavity of cavity connecting tube connect
It is logical, wherein air inlet pipe includes tracheae ontology and the interconnecting piece and intake section for being located at both ends, for the ease of silencing means with start
The Fast Installation of machine air throttle is provided with external screw thread on interconnecting piece, the external screw thread with interconnecting piece is equipped in engine air throttle
The internal screw thread matched need to only be spirally connected the external screw thread of interconnecting piece is corresponding with the internal screw thread of engine air throttle during installation, whole
A polyvinyl chloride is convenient.It, can be from outer by intake section in addition, the caliber of air inlet tube body is using smooth widened design scheme
Boundary gets air delivery as much as possible and plays to engine air throttle so that the fuel of engine can be sufficiently burned
Certain energy-saving effect, and be in gentle transition type S type curvilinear structures by the setting of air inlet tube body, primarily in limited machine
Extend the length of air inlet pipe in the space of cabin as far as possible to increase circulation of the air in air inlet pipe, and then utilizes resonant cavity noise reduction
On the basis of further weaken induction noise.
The another aspect of the utility model provides a kind of automobile, including being used for engine charge described in above-mentioned technical proposal
The silencing means of system.
Compared with prior art, what the beneficial effect with above-mentioned technical proposal of automobile provided by the utility model provided is used for
The beneficial effect of the silencing means of engine aspirating system is identical, and this will not be repeated here.
Detailed description of the invention
Attached drawing described herein is used to provide a further understanding of the present invention, and constitutes one of the utility model
Point, the exemplary embodiment of the utility model and the description thereof are used to explain the utility model, does not constitute to the utility model
Improper restriction.In the accompanying drawings:
Fig. 1 is the schematic perspective view of silencing means in embodiment one；
Fig. 2 is the schematic diagram of the section structure of silencing means.
Appended drawing reference:
1- air inlet pipe, 2- cavity connecting tube；
3- resonant cavity, 11- tracheae ontology；
12- interconnecting piece, 13- intake section；
31- support frame.
Specific embodiment
It is practical below in conjunction with this to keep the above objects, features, and advantages of the utility model more obvious and easy to understand
Attached drawing in new embodiment, the technical scheme in the utility model embodiment is clearly and completely described.Obviously, institute
The embodiment of description is only the utility model a part of the embodiment, instead of all the embodiments.Based in the utility model
Embodiment, those of ordinary skill in the art's all other implementation obtained without creative labor
Example belongs to the range of the utility model protection.
Embodiment one
Please refer to Fig. 1 and Fig. 2, the silencing means provided in this embodiment for engine aspirating system, for being mounted on
On the air inlet of engine air throttle, silencing means includes air inlet pipe 1, resonant cavity 3 and cavity connecting tube 2, the tube wall of air inlet pipe 1
On offer through-hole, one end of cavity connecting tube 2 is connected to by through-hole with air inlet pipe 1, the other end and resonance of cavity connecting tube 2
Chamber 3 is connected to；Wherein, air inlet pipe 1 includes tracheae ontology 11 and the interconnecting piece 12 and intake section that 11 both ends of tracheae ontology are arranged in
13, interconnecting piece 12 is threadedly coupled with the air inlet of engine air throttle, and the caliber of 1 ontology of air inlet pipe is from interconnecting piece 12 to intake section
13 gradually smooth expansions, and 1 ontology of air inlet pipe is in gentle transition type S type curvilinear structures.
In silencing means provided in this embodiment for engine aspirating system, by air inlet pipe 1, resonant cavity 3 and cavity
Connecting tube 2 is constituted, and one end of cavity connecting tube 2 is connected to by through-hole with air inlet pipe 1, the other end and resonance of cavity connecting tube 2
Chamber 3 is connected to, wherein air inlet pipe 1 includes tracheae ontology 11 and the interconnecting piece 12 and intake section 13 that are located at both ends, for the ease of disappearing
The Fast Installation of mixer and engine air throttle is provided with external screw thread on interconnecting piece 12, is equipped in engine air throttle and even
The matched internal screw thread of the external screw thread of socket part 12, during installation only need to be by the interior spiral shell of the external screw thread of interconnecting piece 12 and engine air throttle
Line correspondence is spirally connected, and whole process is efficient and convenient.In addition, the caliber of 1 ontology of air inlet pipe uses smooth widened design scheme,
Air delivery as much as possible can be got from the external world to engine air throttle, so that the fuel of engine by intake section 13
It can be sufficiently burned, play certain energy-saving effect, and be in gentle transition type S type curvilinear structures by the setting of 1 ontology of air inlet pipe,
Primarily to extending the length of air inlet pipe 1 as far as possible in limited cabin space to increase circulation of the air in air inlet pipe 1
Property, and then further weaken induction noise on the basis of using 3 noise reduction of resonant cavity.
It is emphasized that air inlet pipe 1, resonant cavity 3 and cavity connecting tube 2 can use integrally formed structure setting,
So that silencing means has preferable leakproofness, and then guarantee the good noise reduction effect of silencing means, in addition, being embodied
When, it should make 1 ontology of air inlet pipe in gentle transition S type curvilinear structures, the curvilinear structures of 1 ontology of air inlet pipe can not be allowed to exist
Low-angle dog-ear situation, the purpose designed in this way be in order to avoid air when through low-angle bend caused by circulation it is unsmooth
It happens.
In order to further increase the air inflow of air inlet pipe 1, the inner diameter of intake section 13 can also be connected along tracheae ontology 11
The place of connecing forms a horn mouth to far from gradually smoothly expanding at tracheae ontology 11.Meanwhile in order to avoid the solid impurity in air
Damaged into engine air throttle to engine, the present embodiment be also provided in intake section 13 airstrainer and/or
Air filtering core.
Optionally, the position that opens up of the through-hole in above-described embodiment should be as far as possible close to interconnecting piece 12, and the hole of through-hole
Diameter is identical as the caliber of cavity connecting tube 2.The opening of through-hole is positioned close at 12 position of interconnecting piece to be to make the external world
The air times as more as possible circulate in 1 ontology of air inlet pipe, to carry out preliminary noise reduction to outside air, then will tentatively drop
The air delivery made an uproar finally again consumes the air delivery after noise reduction to engine air throttle into the further noise reduction of resonant cavity 3, from
And reach preferable noise reduction effect.And the aperture of through-hole is identical as the caliber setting of cavity connecting tube 2, it is to be able to subtracting
The air inflow of resonant cavity 3 is controlled on the basis of few manufacturing cost as far as possible.
Furthermore, it is contemplated that the caliber of cavity connecting tube 2 is thinner, and the volume of resonant cavity 3 is larger, in galloping
When windage can to resonant cavity 3 apply a biggish power, in order to extend the service life of cavity connecting tube 2, the present embodiment is also in chamber
Stiffening plate is set between the gentle tube body 11 of body connecting tube 2, to increase the stress of cavity connecting tube 2, ensure that silencing means is whole
The stability of body structure.Cavity connecting tube 2 is arced tube structure, and the arc core of cavity connecting tube 2 is close to interconnecting piece 12, so that
By arc cavity connecting tube 2 as far as possible close to 1 ontology of air inlet pipe, setting in this way is on the one hand to reduce humorous resonant cavity 3
The occupied space of vibration chamber 3, on the other hand can reduce windage, reduce the stress of cavity connecting tube 2.
Specifically, the resonant cavity 3 in above-described embodiment includes frame and is arranged in the cover boards of frame two sides, cover board and frame
Frame is connected using cambered surface transition.Resonant cavity 3 is used into cambered surface Transition Design, is on the one hand to reduce windage, on the other hand also
It is avoided that corner angle cause to stab to personnel during installation.In view of the noise reduction effect and cavity connecting tube 2 and resonance of silencing means
The design of chamber 3 is closely bound up, and the present embodiment is designed f=to 2 resonant cavity 3 of cavity connecting tube according to following formula relationship
(C/2pi)*[S/(L*V)]1/2, wherein f is 3 noise elimination centre frequency of resonant cavity, and f will generally be selected before designing resonant cavity 3
Fixed (known), such as f are 125Hz, and the general value of velocity of sound C is 340m/s (known), and pi indicates pi value for 3.14 (
Know), L is the length of cavity connecting tube 2, the caliber that S is cavity connecting tube 2, and V is the volume of resonant cavity 3, to cavity connecting tube
When 2 resonant cavities 3 are designed, L, S and V need to be only correspondingly arranged according to aforementioned proportion relationship.Resonant cavity 3 can be used existing
Have a design structure, only improvement is optimized to its volume in the present embodiment, make it through Hull nurse hereby resonance principle by resonance
The corresponding noise of 3 noise elimination centre frequency of chamber eliminates.
In order to further ensure the noise reduction effect of silencing means, special designing need to be carried out to the wall thickness of silencing means, herein
Signified wall thickness includes the wall thickness of 2 three of air inlet pipe 1, resonant cavity 3 and cavity connecting tube, and when specific implementation both can be by air inlet pipe
1, resonant cavity 3 and the wall thickness of cavity connecting tube 2 are arranged to identical, difference also can be set into, the present embodiment is preferably by air inlet
The wall thickness of pipe 1, resonant cavity 3 and cavity connecting tube 2 is arranged to identical, sets the wall thickness of silencing means to through analysis of experimental data
When 1.7mm, it can guarantee the equilibrium between noise reduction effect and production cost.
Preferably, frame is equipped with support frame 31, and support frame 31 is equipped with the threaded hole fixed by bolt cooperation.It uses
Bolt passes through threaded hole and fixes with vehicle beam, and then promotes the fixed effect of silencing means and vehicle beam.
Embodiment two
The utility model embodiment provides a kind of automobile, which includes as being used for engine charge in embodiment one
The silencing means of system.
Compared with prior art, the beneficial effect of automobile provided by the embodiment of the utility model and above-described embodiment one provide
The silencing means for engine aspirating system beneficial effect it is identical, this will not be repeated here.
In the description of above embodiment, particular features, structures, materials, or characteristics can be at any one or more
It can be combined in any suitable manner in a embodiment or example.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation
Or replacement, it should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be with the power
Subject to the protection scope that benefit requires.
Claims (10)
1. a kind of silencing means for engine aspirating system, special for being mounted on the air inlet of engine air throttle
Sign is that the silencing means includes air inlet pipe, resonant cavity and cavity connecting tube, offers on the tube wall of the air inlet pipe logical
Hole, one end of the cavity connecting tube are connected to by through-hole with the air inlet pipe, the other end of the cavity connecting tube with it is described
Resonant cavity connection；Wherein,
The air inlet pipe includes tracheae ontology and the interconnecting piece and intake section that tracheae ontology both ends are arranged in, the interconnecting piece with
The air inlet of engine air throttle is threadedly coupled, the caliber of the air inlet tube body from the interconnecting piece to the intake section gradually
It is smooth to expand, and the air inlet tube body is in gentle transition type S type curvilinear structures.
2. silencing means according to claim 1, which is characterized in that the inner diameter of the intake section is along the tracheae sheet
Body junction forms a horn mouth to far from gradually smoothly expanding at the tracheae ontology.
3. silencing means according to claim 1, which is characterized in that be equipped with airstrainer in the intake section.
4. silencing means according to claim 1, which is characterized in that opening up for the through-hole is located proximate to the connection
Portion, the aperture of the through-hole are identical as the caliber of the cavity connecting tube.
5. silencing means according to claim 4, which is characterized in that the cavity connecting tube is arced tube structure, institute
The arc core of cavity connecting tube is stated close to the interconnecting piece.
6. silencing means according to claim 5, which is characterized in that further include being located at the cavity connecting tube and the gas
Stiffening plate between tube body.
7. silencing means according to claim 4, which is characterized in that the resonant cavity includes frame and is arranged described
The cover board of frame two sides, the cover board are connect with the frame using cambered surface transition.
8. silencing means according to claim 5, which is characterized in that the setting of the cavity connecting tube and the resonant cavity
Relationship meets f=(C/2pi) * [S/ (L*V)]1/2；Wherein,
C is the aerial spread speed of sound, and L is the length of cavity connecting tube, and S is the caliber of cavity connecting tube, and V is resonance
The volume of chamber, f are resonant cavity noise elimination centre frequency.
9. silencing means according to claim 7, which is characterized in that the frame is equipped with support frame, support frame as described above
It is equipped with the threaded hole fixed by bolt cooperation.
10. a kind of automobile, which is characterized in that including of any of claims 1-9 for engine aspirating system
Silencing means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821877536.1U CN209067386U (en) | 2018-11-14 | 2018-11-14 | Silencing means and automobile for engine aspirating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821877536.1U CN209067386U (en) | 2018-11-14 | 2018-11-14 | Silencing means and automobile for engine aspirating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209067386U true CN209067386U (en) | 2019-07-05 |
Family
ID=67099033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821877536.1U Active CN209067386U (en) | 2018-11-14 | 2018-11-14 | Silencing means and automobile for engine aspirating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209067386U (en) |
-
2018
- 2018-11-14 CN CN201821877536.1U patent/CN209067386U/en active Active
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