CN209469522U - Silencer for supercharged vehicle type air inlet system - Google Patents
Silencer for supercharged vehicle type air inlet system Download PDFInfo
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- CN209469522U CN209469522U CN201821910925.XU CN201821910925U CN209469522U CN 209469522 U CN209469522 U CN 209469522U CN 201821910925 U CN201821910925 U CN 201821910925U CN 209469522 U CN209469522 U CN 209469522U
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- noise elimination
- supervisor
- elimination cavity
- silencer
- pressurized
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Abstract
The utility model discloses a silencer for supercharged vehicle type air intake system, be responsible for including noise elimination cavity, first person in charge and second, first person in charge is connected the one end of noise elimination cavity, the second is responsible for the connection and is in the other end of noise elimination cavity, the diameter of noise elimination cavity is greater than first person in charge with the diameter that the second was responsible for, first person in charge with at least one in the second person in charge inserts the part in the noise elimination cavity. The utility model discloses a bayonet noise-elimination structure has with low costs, the high and wide advantage of noise-elimination frequency channel, and the noise-elimination frequency channel can reach 5000 + 9000 Hz.
Description
Technical field
The utility model relates to the technical fields of automobile more particularly to a kind of for being pressurized the noise elimination of vehicle gas handling system
Device.
Background technique
Booster air-flow sound (being also " hiss " noise) is common one of the NVH project of engine with supercharger vehicle, usually
Sound is hidden by vehicle or the method for additional porous sound eliminator solves project on induction system line.
1, vehicle hides sound technology: additional vehicle hides line product on vehicle, improves booster air-flow sound；
But this vehicle hides the mode higher cost of sound.
2, as shown in Figure 1, the construction of common porous sound eliminator and function are as follows: (1) construct: porous sound eliminator is a kind of
The structure of a large amount of apertures is installed on tube wall, (2) function: sound wave enters expansion chamber by the aperture on central tube wall surface, then
The intracavitary roundtrip of reflation, which is realized, eliminates the noise.
But the frequency range that porous sound eliminator is eliminated the noise is concentrated mainly on 500~5000Hz, makees to the noise elimination of 5000Hz or more noise
With unobvious, lead to not the air-flow sound for eliminating higher frequency.
Therefore, it is necessary to design a kind of at low cost, deadening frequency band height and width for being pressurized the noise elimination of vehicle gas handling system
Device.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of at low cost, deadening frequency band height and width
For being pressurized the silencer of vehicle gas handling system.
The technical solution of the utility model provides a kind of for being pressurized the silencer of vehicle gas handling system, including noise elimination cavity
Body, the first supervisor and the second supervisor, first supervisor are connected to one end of the noise elimination cavity, and second supervisor is connected to
The other end of the noise elimination cavity, the diameter of the noise elimination cavity are greater than the diameter of first supervisor and second supervisor,
At least one of first supervisor and second supervisor are inserted into the noise elimination cavity of part.
Further, first supervisor is inserted into the noise elimination cavity of part.
Further, first supervisor and second supervisor are inserted into the noise elimination cavity of part.
Further, the centerline length of the noise elimination cavity is 10-60mm.
Further, the intubating length of first supervisor and/or second supervisor are 2-6mm.
Further, the noise elimination volume of the noise elimination cavity is 0.02~0.15L, the calculation formula of the noise elimination volume
Are as follows: π * (D^2/4-d^2/4) * L,
Wherein, D is the diameter of the noise elimination cavity, and d is the diameter of first supervisor and/or second supervisor, and L is
The centerline length of the noise elimination cavity.
Further, slotting length L-l, wherein l is long for the insertion of first supervisor and/or second supervisor
Degree, fluting area are π * d (L-l).
Further, the noise elimination cavity includes at least two, passes through connecting tube or the between the adjacent noise elimination cavity
One supervisor or the second supervisor connection.
Further, be additionally provided with support frame in the noise elimination cavity, support frame as described above include the first round frame, the second round frame and
Connection frame, first round frame and second round frame connect simultaneously integral installation to the noise elimination cavity by the connection frame
On inner wall.
Further, the noise elimination cavity is made of resin material or aluminium alloy or stainless steel material.
After adopting the above technical scheme, having the following beneficial effects:
The utility model has the advantages that at low cost, deadening frequency band height and width by plug-type noise elimination structure, frequency of eliminating the noise
Section can achieve 5000-9000Hz.
Detailed description of the invention
Referring to attached drawing, the disclosure of the utility model will be easier to understand.It is understood that these attached drawings are used only for
The purpose of explanation, and be not intended to and the protection scope of the utility model is construed as limiting.In figure:
Fig. 1 is the structural schematic diagram of existing silencer；
Fig. 2 is in the utility model embodiment one for being pressurized the structural schematic diagram of the silencer of vehicle gas handling system；
Fig. 3 is in the utility model embodiment one for being pressurized the explosive view of the silencer of vehicle gas handling system；
Fig. 4 is in the utility model embodiment one for being pressurized the schematic diagram of the silencer of vehicle gas handling system；
Fig. 5 is in the utility model embodiment two for being pressurized the schematic diagram of the silencer of vehicle gas handling system.
The appended drawing reference table of comparisons:
1- first is responsible for 2- second and is responsible for 3- noise elimination cavity
4- support frame
41- the first round frame 42- the second round frame 43- connection frame
Specific embodiment
Further illustrate specific embodiment of the present utility model with reference to the accompanying drawing.
It is readily appreciated that, technical solution according to the present utility model, in the case where not changing the utility model in essence spirit, this field
The various structures mode that can be replaced mutually of those skilled in the art and implementation.Therefore, following specific embodiments and
Attached drawing is only the exemplary illustration to the technical solution of the utility model, and is not to be construed as the whole of the utility model or is considered as
Utility model technical solution is defined or limited.
It mentions in the present specification or up, down, left, right, before and after, front, the back side, top, the bottom that may mention etc.
Positional terms are defined relative to each construction shown in the drawings, they are opposite concepts, and it is therefore possible to can root
Correspondingly changed according to different location locating for it, different use states.So also should not be by these or others side
Position term is construed to restricted term.
Embodiment one:
Referring to fig. 2 shown in -4, for the structural schematic diagram of the silencer for being pressurized vehicle gas handling system of embodiment one.
For being pressurized the silencer of vehicle gas handling system, including the supervisor of noise elimination cavity 3, first 1 and the second supervisor 2, first
Supervisor 1 is connected to one end of noise elimination cavity 3, and the second supervisor 2 is connected to the other end of noise elimination cavity 3, and the diameter of noise elimination cavity 3 is big
In the diameter of the first supervisor 1 and the second supervisor 2, the first supervisor 1 is inserted into part noise elimination cavity 3.
As shown in figure 4, only having the first supervisor 1 to be inserted into the part cavity of noise elimination cavity 3 in embodiment one.
Wherein, as Figure 2-3, noise elimination cavity 3 is the pipe with certain radian, and the first supervisor 1 and the second supervisor 2 are
Straight tube.
Optionally, noise elimination cavity 3 can also be straight tube.
Optionally, the centerline length L of noise elimination cavity 3 is 10-60mm.
As shown in figure 4, centerline length L is the length of the central axis of noise elimination cavity 3, it is in the center line the present embodiment
Curve.
Optionally, the intubating length of the first supervisor 1 and/or the second supervisor 2 are 2-6mm.
Optionally, the noise elimination volume of noise elimination cavity 3 is 0.02~0.15L, the calculation formula of noise elimination volume are as follows: π * (D^2/
4-d^2/4)*L,
Wherein, D is the diameter of noise elimination cavity, and d is the diameter of the first supervisor 1, and L is the centerline length of noise elimination cavity 3.
Further, slotting length L-l, wherein l is the intubating length of the first supervisor 1, and fluting area is π * d (L-l).
Wherein, as shown in figure 4, in embodiment one, due to only having the first supervisor 1 to be inserted into noise elimination cavity 3, l is
L in Fig. 4a, therefore area of slotting is π * d (L-la)。
Impedance changes at the fluting area being connect due to the first supervisor with noise elimination cavity, and concussion is generated when sound wave passes through
It is reflected back toward at sound source with the sound wave of energy loss, while specific frequency, to reduce sound wave propagation downstream and realization
The purpose of noise elimination.Frequency of noise elimination is directly proportional to the fluting area of silencer, is inversely proportional with noise elimination volume, therefore increases fluting face
Product reduces noise elimination volume, and high frequency noise elimination may be implemented, and the noise elimination processing of 5000Hz or more noise may be implemented in the present embodiment.
Further, as shown in figure 3, being additionally provided with support frame 4 in noise elimination cavity 3, support frame 4 includes the first round frame 41, the
Two round frames 42 and connection frame 43, the first round frame 41 and the second round frame 42 play the role of separating neighboring chambers, are connected by connection frame 43
It connects and in integral installation to the inner wall of noise elimination cavity 3.Support frame 4 is used to support noise elimination cavity 3.
Embodiment two:
As shown in figure 5, the first supervisor 1 and the second supervisor 2 are inserted into part noise elimination cavity 3.
The calculation formula of noise elimination volume in embodiment two are as follows: π * (D^2/4-d^2/4) * L,
Fluting area is π * d (L-l), and wherein l is the intubating length of the first supervisor 1 and the second supervisor 2, l=la+lb, because
This fluting area is π * d lc。
The noise elimination volume of embodiment two is the same as example 1, and fluting area ratio embodiment one is small, therefore embodiment two
Deadening frequency band is higher.
Optionally, noise elimination cavity 3 includes at least two, is responsible for 1 by connecting tube or first between adjacent noise elimination cavity 3,
Or 2 connection of the second supervisor.
The first supervisor and the second supervisor can be connected i.e. between noise elimination cavity 3 by other increased connecting tube, it can also
To connect using the second supervisor of previous noise elimination cavity with the latter noise elimination cavity, or utilize the first of the latter noise elimination cavity
Supervisor connect with previous noise elimination cavity.
Broader frequency range can be eliminated 2 and in a manner of upper cavity combination, between 5000~9000Hz, is passed
Passing loss can achieve 15dB or more.
Optionally, noise elimination cavity is made of resin material (such as nylon, polypropylene) or aluminium alloy or stainless steel material,
Resin material has the low advantage of light weight and cost, and aluminium alloy and stainless steel material have the advantages that temperature resistant grade is high.
Above-described is only the principles of the present invention and preferred embodiment.It should be pointed out that for the general of this field
For logical technical staff, on the basis of the utility model principle, several other modifications can also be made, also should be regarded as practical
Novel protection scope.
Claims (10)
1. a kind of for being pressurized the silencer of vehicle gas handling system, which is characterized in that including noise elimination cavity, the first supervisor and second
Supervisor, first supervisor are connected to one end of the noise elimination cavity, and second supervisor is connected to the another of the noise elimination cavity
One end, the diameter of the noise elimination cavity are greater than the diameter of first supervisor and second supervisor, first supervisor and institute
At least one of second supervisor is stated to be inserted into the noise elimination cavity of part.
2. according to claim 1 for being pressurized the silencer of vehicle gas handling system, which is characterized in that first supervisor
It is inserted into the noise elimination cavity of part.
3. according to claim 1 for being pressurized the silencer of vehicle gas handling system, which is characterized in that first supervisor
It is inserted into the noise elimination cavity of part with second supervisor.
4. according to claim 1 for being pressurized the silencer of vehicle gas handling system, which is characterized in that the noise elimination cavity
Centerline length be 10-60mm.
5. according to claim 1 for being pressurized the silencer of vehicle gas handling system, which is characterized in that first supervisor
And/or the intubating length of second supervisor is 2-6mm.
6. according to claim 1 for being pressurized the silencer of vehicle gas handling system, which is characterized in that the noise elimination cavity
Noise elimination volume be 0.02~0.15L, the calculation formula of the noise elimination volume are as follows: π * (D^2/4-d^2/4) * L,
Wherein, D is the diameter of the noise elimination cavity, and d is the diameter of first supervisor and/or second supervisor, and L is described
The centerline length of noise elimination cavity.
7. according to claim 1 for being pressurized the silencer of vehicle gas handling system, which is characterized in that slotting length L-
L, wherein l is the intubating length of first supervisor and/or second supervisor, and fluting area is π * d (L-l).
8. according to claim 1-7 for being pressurized the silencer of vehicle gas handling system, which is characterized in that described
Noise elimination cavity includes at least two, passes through connecting tube or the first supervisor or second supervisor between the adjacent noise elimination cavity
Connection.
9. according to claim 1-7 for being pressurized the silencer of vehicle gas handling system, which is characterized in that described
Be additionally provided with support frame in noise elimination cavity, support frame as described above includes the first round frame, the second round frame and connection frame, first round frame and
Second round frame passes through in connection frame connection and integral installation to the inner wall of the noise elimination cavity.
10. according to claim 1-7 for being pressurized the silencer of vehicle gas handling system, which is characterized in that institute
Noise elimination cavity is stated to be made of resin material or aluminium alloy or stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821910925.XU CN209469522U (en) | 2018-11-20 | 2018-11-20 | Silencer for supercharged vehicle type air inlet system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821910925.XU CN209469522U (en) | 2018-11-20 | 2018-11-20 | Silencer for supercharged vehicle type air inlet system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209469522U true CN209469522U (en) | 2019-10-08 |
Family
ID=68087736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821910925.XU Active CN209469522U (en) | 2018-11-20 | 2018-11-20 | Silencer for supercharged vehicle type air inlet system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209469522U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111287873A (en) * | 2020-02-09 | 2020-06-16 | 吉利汽车研究院（宁波）有限公司 | Silencer |
-
2018
- 2018-11-20 CN CN201821910925.XU patent/CN209469522U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111287873A (en) * | 2020-02-09 | 2020-06-16 | 吉利汽车研究院（宁波）有限公司 | Silencer |
| CN111287873B (en) * | 2020-02-09 | 2021-04-16 | 吉利汽车研究院（宁波）有限公司 | Silencer |
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