CN207004647U - A kind of high frequency muffler - Google Patents
A kind of high frequency muffler Download PDFInfo
- Publication number
- CN207004647U CN207004647U CN201720898404.6U CN201720898404U CN207004647U CN 207004647 U CN207004647 U CN 207004647U CN 201720898404 U CN201720898404 U CN 201720898404U CN 207004647 U CN207004647 U CN 207004647U
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- CN
- China
- Prior art keywords
- shell
- high frequency
- inner casing
- tubular inner
- frequency muffler
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Exhaust Silencers (AREA)
Abstract
The utility model discloses a kind of high frequency muffler, including：Shell, tubular inner casing, the first spacer ring and the second spacer ring, high frequency muffler provided by the utility model, by the cooperation of shell, tubular inner casing, the first spacer ring and the second spacer ring, and bloop is set in the side wall of tubular inner casing, so as to effectively reduce the pressure release noise of turbocharger；Moreover, the utility model can assemble more money supercharging vehicles, the difference of corresponding noisy frequency range, the position of bloop, quantity and bore are adjusted flexibly, different frequency noise is targetedly handled with reaching, so as to lift vehicle NVH performances, improves vehicle comfortableness.
Description
Technical field
It the utility model is related to vehicle noise reduction field, more particularly to a kind of high frequency muffler.
Background technology
Turbocharging (Turbo Boost), it is that one kind utilizes exhaust gas driven air compressor caused by engine operation
Technology.Turbo charged main function is exactly on the basis of engine displacement is not increased, and improves air input of engine by air, so as to
The power and moment of torsion of engine are improved, allows car energeticallyer.It is more next with continuous improvement of the people to requirements such as vehicle dynamic qualities
More passenger car matching turbocharged engines.But using after turbocharged engine, although vehicle dynamic property improves,
But the NVH problems such as shake, turbocharger abnormal sound and pipeline eddy current crack also gradually highlight caused by engine load increase,
Letter is to be solved.
Certain turbocharging passenger car vehicle, after suddenly accelerating to 2000rpm, the moment in-car of quick accelerator releasing is substantially experienced
Lose heart sound, and this confirmed noise is the pressure release noise of turbocharger.The riding comfort of driver is had a strong impact on, phase need to be taken
Pass measure reduces this noise, and lacks a kind of effective silencing means at present.
Utility model content
The purpose of this utility model is to provide a kind of high frequency muffler, to solve the problems of the prior art, effectively reduces
The pressure release noise of turbocharger.
The utility model provides a kind of high frequency muffler, and the high frequency muffler includes：Shell, tubular inner casing, first
Spacer ring and the second spacer ring, the shell include the first shell, second housing and the 3rd shell of the tubular that diameter increases successively, institute
State the first shell, second housing and the 3rd shell to be sequentially connected with, corresponding each junction is provided with transition shoulder, the cylinder
The diameter of shape inner casing is more than or equal to the diameter of first shell, and the tubular inner casing is coaxial to be arranged in the second housing
Portion, and the junction of first shell and second housing, it is affixed with the tubular inner casing first end, the tubular inner casing second
End extends the 3rd housing exterior, first spacer ring and the second spacer ring it is coaxial be arranged on the shell and the tubular
Between inner casing, bloop is provided with the side wall of the tubular inner casing.
Preferably, the bloop be provided with it is multiple, and the bloop respectively be located at the tubular inner casing side wall
On opposite sides.
Preferably, bloop unilateral in the side wall of the tubular inner casing includes two arrays.
Preferably, the hole heart between two adjacent bloops in each array is away from for 5.2mm, two adjacent battle arrays
The hole heart between two adjacent bloops of row is away from for 8mm.
Preferably, the bloop is provided with 158, and a diameter of 4mm of the bloop.
Preferably, the first spacer ring outer peripheral edge setting is fluted, between first shell and the second housing
Transition shoulder, with the groove clamping.
Preferably, the free end of the 3rd shell, the outer peripheral edge of second spacer ring set respectively it is corresponding two layers
Step, two layers of step of the 3rd shell correspond to clamping respectively with two layers of step of second spacer ring, and right
Answer and the convex portion worked in coordination and recess are set respectively on two layers of step of clamping.
Preferably, the high frequency muffler also includes supporting plate and reinforcement, the supporting plate is arranged on the outer of the shell
On wall, the supporting plate both sides are provided with the reinforcement.
Preferably, the high frequency muffler also includes fixed support, the fixed support passes through with the supporting plate to be connected
Part connects.
Preferably, the connector includes bolt, sleeve and packing ring, the fixed support on the supporting plate with being respectively provided with
There is through hole, the bolt sequentially passes through the fixed support and the through hole on the supporting plate, and the sleeve, the packing ring are set successively
Put between the bolt and the supporting plate, and multiple projections be provided with the packing ring inwall, for the sleeve interference
Coordinate, neck is provided with the packing ring outer wall, the neck is used to accommodate the supporting plate.
High frequency muffler provided by the utility model, matched somebody with somebody by shell, tubular inner casing, the first spacer ring with the second spacer ring
Close, and bloop is set in the side wall of tubular inner casing, so as to effectively reduce the pressure release noise of turbocharger；Moreover, this
Utility model can assemble more money supercharging vehicles, the difference of corresponding noisy frequency range, to the position of bloop, quantity and bore
It is adjusted flexibly, different frequency noise is targetedly handled with reaching, so as to lift vehicle NVH performances, it is comfortable improves vehicle
Property.
Brief description of the drawings
Fig. 1 is the structural representation for the high frequency muffler that the utility model embodiment provides；
Fig. 2 is the diagrammatic cross-section of Fig. 1 high frequency muffler；
Fig. 3 is the structural representation for the high frequency muffler that the another embodiment of the utility model provides；
Fig. 4 is the operating diagram of the connector in Fig. 3.
Description of reference numerals：
The shell 14- transition shoulder 2- tubular inner casings 21- of 1- shells 11- the first shell 12- second housings 13- the 3rd
First spacer ring 22- the second spacer ring 3- supporting plate 31- bolt 32- packing ring 33- sleeve 34- neck 35- projection 36- reinforcements
4- fixed supports
Embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng
The embodiment for examining accompanying drawing description is exemplary, is only used for explaining the utility model, and can not be construed to of the present utility model
Limitation.
As shown in Figure 1, Figure 2 and Figure 3, the utility model provides a kind of high frequency muffler, and the high frequency muffler includes：
Shell 1, tubular inner casing 2, the first spacer ring 21 and the second spacer ring 22, the shell 1 include the first of the tubular that diameter increases successively
Shell 11, the shell 13 of second housing 12 and the 3rd, first shell 11, second housing 12 and the 3rd shell 13 sequentially connect
Connect, corresponding each junction is provided with transition shoulder 14, and the diameter of the tubular inner casing 2 is more than or equal to first shell 11
Diameter, the tubular inner casing 2 is coaxial to be arranged on inside the second housing 12, and first shell 11 and second housing 12
Junction, be affixed with the first end of tubular inner casing 2, the end of tubular inner casing 2 second is extended outside the 3rd shell 13,
First spacer ring 21 with the second spacer ring 22 is coaxial is arranged between the shell 1 and the tubular inner casing 2, the tubular
Bloop is provided with the side wall of inner casing 2.
Wherein, the utility model is generally located on the former installation inlet pipe connection position of air inlet pipeline, and original air inlet is connected
Adapter is cancelled, and reequips high frequency muffler of the present utility model, and pipeline connection in both ends is typically fixed with clip, each portion of the utility model
It is welded together between part with friction welding (FW).High frequency muffler provided by the utility model, pass through shell 1, tubular inner casing 2, first
The cooperation of the spacer ring 22 of spacer ring 21 and second, and bloop is set in the side wall of tubular inner casing 2, increase so as to effectively reduce turbine
The pressure release noise of depressor；Moreover, by the cooperation on shell 1 and the structure of tubular inner casing 2, and corresponding noisy frequency range is not
Together, being adjusted flexibly to the position of bloop, quantity and bore, reached and different frequency noise has targetedly been handled, from
And vehicle NVH performances are lifted, improve vehicle comfortableness.
As shown in Fig. 2 preferably, the bloop is provided with multiple, and the bloop is located at the tubular respectively
Opposite sides in the side wall of inner casing 2.Unilateral bloop includes two arrays in the side wall of the tubular inner casing 2.Each
The hole heart between two adjacent bloops in the array away from for 5.2mm, two adjacent bloops of two adjacent arrays it
Between the hole heart away from for 8mm.
Preferably, the bloop is provided with 158, and a diameter of 4mm of the bloop.
Wherein, for the discouraged sound of 1000~1600Hz of in-car boosters, 158 φ 4mm bloop is typically distributed with, divides
Opposite sides in the side wall of cloth tubular inner casing 2, per side 79, it is divided into two arrays per side, one 39 bloops of array,
2 40 bloops of array.Array one and array two at a distance of two nearest bloops, i.e., a bloop of array one with
The hole heart of one bloop of array two away from 8mm, between two adjacent bloops in each array radially, axially the hole heart away from equal
For 5.2mm；Certainly, can be specifically adjusted flexibly according to being actually needed.
As shown in Fig. 2 preferably, the outer peripheral edge of the first spacer ring 21 sets fluted, first shell 11 and institute
The transition shoulder 14 between second housing 12 is stated, with the groove clamping.
As shown in Fig. 2 preferably, the free end of the 3rd shell 13, the outer peripheral edge difference of second spacer ring 22
Two layers of step corresponding to setting, two layers of step of two layers of the step and second spacer ring 22 of the 3rd shell 13
Clamping is corresponded to respectively, and the convex portion worked in coordination and recess are set respectively on two layers of step of corresponding clamping.
Wherein, a diameter of 93.8mm of the first shell 11, have between the first shell 11 and the second housing 12 outside one
Open 1.4 ° of draft angle；A diameter of 100.3mm of second housing 12, has between the shell 13 of second housing 12 and the 3rd outside one
1.55 ° of draft angle, draft angle are advantageous to the workpiece in injection of shell 1 and easily taken out relative to mould.Second housing 12 and
Transition shoulder 14 between three shells 13, radial dilatation 2.5mm.First spacer ring 21 and the second spacer ring 22, by silencer casing 1 with
Space between tubular inner casing 2 is divided into two parts.The diameter of first spacer ring 21 is as the diameter of second housing 12
100.3mm, the non-2mm of thickness, there is a circle depth 0.5mm, wide 2.5mm groove at the outer peripheral edge of the first spacer ring 21, the first shell 11 with
Transition shoulder 14 and its clamping between the second housing 12, and have two layers of step of a circle at the outer peripheral edge of the second spacer ring 22,
One wide 3.6mm of step, high 3.5mm, step two wide 2.5mm, high 2.5mm, the free end of the 3rd shell 13, i.e. the 3rd shell 13 are remote
On one end from second housing 12, two layers of step is correspondingly arranged, moreover, also convex portion can be set on the step of the 3rd shell 13,
Step on the second spacer ring 22 sets recess, and the two is mutually engaged by clamping, meanwhile, outside the step and the 3rd on the second spacer ring 22
The step phase clamping at the edge of shell 13.
As shown in figure 1, preferably, the high frequency muffler also includes supporting plate 3 and reinforcement 36, the supporting plate 3 is set
On the outer wall of the shell 1, the both sides of supporting plate 3 are provided with the reinforcement 36.
As shown in figure 3, preferably, the high frequency muffler also includes fixed support 4, the fixed support 4 with it is described
Supporting plate 3 is connected by connector.
As shown in figure 4, preferably, the connector includes bolt 31, sleeve 33 and packing ring 32, the fixed support 4
With being provided with through hole on the supporting plate 3, the bolt 31 sequentially passes through the fixed support 4 and the through hole on the supporting plate 3,
The sleeve 33, the packing ring 32 are successively set between the bolt 31 and the supporting plate 3, and are set on the inwall of the packing ring 32
Multiple raised 35 are equipped with, for being interference fitted with the sleeve 33, neck 34, the neck are provided with the outer wall of packing ring 32
34 are used to accommodate the supporting plate 3.
Wherein, high frequency silencer casing 1 is provided with a supporting plate 3, and respectively there are the high reinforcements 36 of 3mm the both sides of supporting plate 3, for adding
The strong intensity of supporting plate 3.The position that supporting plate 3 is set can be adjusted flexibly, its can with but be arranged on the first shell 11, second housing 12 or the
On three shells 13, can also be disposed therein on two shells, also can three shells supporting plate 3 is attached jointly.Supporting plate 3 is solid
It is urgent, fixed by 2 bolts 31 due on fixed support 4 of the present utility model, rubber is housed between supporting plate 3 and bolt 31
Packing ring 32, the sleeve 33 of metal, for reducing the vibration of high frequency muffler.The external diameter 26mm of packing ring 32 of rubber, internal diameter
11.7mm, the uniform 8 high 0.5mm of medial surface surrounding, size 2mm × 2mm rubber bumps 35, matches somebody with somebody with the sleeve interference of metal
Close.The outer side waist of packing ring 32 of rubber has the high 2mm of a circle, deep 4.2mm neck 34, neck 34 and the clamping of supporting plate 3.
After air inlet pipeline increases high frequency muffler of the present utility model, gas handling system air inlet position and in-car 1000~
The discouraged sound of 1600Hz boosters declines to a great extent, and the discouraged sound of 1000~1600Hz of air inlet position declines 10.3dB (A), in-car 1000
The discouraged sound of~1600Hz declines 3.4dB (A), and can't hear the discouraged sound of booster by subjective assessment in-car.For other
The reduction of the discouraged sound of the booster of frequency, can be by adjusting the noise reduction hole number on this high frequency muffler inner casing shell wall come real
It is existing.For example, the booster of another money supercharging vehicle loses heart, the main frequency section of sound is 1500~2000Hz, can be in muffler cylinder
Increase by 44 bloops in the side wall of shape inner casing 2, i.e., each side increase by 22 bloops, increase bloop and former bloop newly
Aperture, pitch-row all same.Bloop axially increases as far as possible, and array one is uniformly distributed with array two, each array formation
It is as far as possible symmetrical.A high frequency muffler can assemble more money supercharging vehicles, for different frequency scope, only need to adjust noise reduction
Device opens up noise reduction hole count.
Construction, feature and action effect of the present utility model is described in detail according to the embodiment shown in schema above, with
Upper described is only preferred embodiment of the present utility model, but the utility model is to limit practical range shown in drawing, it is every according to
According to the made change of conception of the present utility model, or the equivalent embodiment of equivalent variations is revised as, still without departing from specification and figure
, all should be in the scope of protection of the utility model when showing covered spirit.
Claims (10)
1. a kind of high frequency muffler, it is characterised in that the high frequency muffler includes：Shell, tubular inner casing, the first spacer ring and
Two spacer rings, the shell include the first shell, second housing and the 3rd shell of tubular that diameter increases successively, outside described first
Shell, second housing and the 3rd shell are sequentially connected with, and corresponding each junction is provided with transition shoulder, the tubular inner casing
Diameter is more than or equal to the diameter of first shell, and the tubular inner casing is coaxial to be arranged on inside the second housing, and institute
The junction of the first shell and second housing is stated, is affixed with the tubular inner casing first end, the end of tubular inner casing second extends
3rd housing exterior, first spacer ring and the second spacer ring it is coaxial be arranged on the shell and the tubular inner casing it
Between, it is provided with bloop in the side wall of the tubular inner casing.
2. high frequency muffler according to claim 1, it is characterised in that the bloop is provided with multiple, and described disappears
Sound hole is located at the opposite sides in the side wall of the tubular inner casing respectively.
3. high frequency muffler according to claim 2, it is characterised in that unilateral noise reduction in the side wall of the tubular inner casing
Kong Jun includes two arrays.
4. high frequency muffler according to claim 3, it is characterised in that two adjacent bloops in each array
Between the hole heart away from for 5.2mm, the hole heart between two adjacent bloops of two adjacent arrays is away from for 8mm.
5. high frequency muffler according to claim 1, it is characterised in that the bloop is provided with 158, and described disappears
A diameter of 4mm of sound hole.
6. according to the high frequency muffler described in claim any one of 1-5, it is characterised in that the first spacer ring outer peripheral edge is set
It is fluted, the transition shoulder between first shell and the second housing, with the groove clamping.
7. according to the high frequency muffler described in claim any one of 1-5, it is characterised in that the free end of the 3rd shell,
The outer peripheral edge of second spacer ring sets corresponding two layers of step respectively, two layers of step of the 3rd shell and described the
Two layers of step of two spacer rings corresponds to clamping respectively, and sets the convex portion worked in coordination respectively on two layers of step of corresponding clamping
With recess.
8. according to the high frequency muffler described in claim any one of 1-5, it is characterised in that the high frequency muffler also includes support
Plate and reinforcement, the supporting plate are arranged on the outer wall of the shell, and the supporting plate both sides are provided with the reinforcement.
9. high frequency muffler according to claim 8, it is characterised in that the high frequency muffler also includes fixed support,
The fixed support is connected with the supporting plate by connector.
10. high frequency muffler according to claim 9, it is characterised in that the connector includes bolt, sleeve and pad
Circle, for the fixed support with being provided with through hole on the supporting plate, the bolt sequentially passes through the fixed support and the support
Through hole on plate, the sleeve, the packing ring are successively set between the bolt and the supporting plate, and on the packing ring inwall
Multiple projections are provided with, for being interference fitted with the sleeve, neck are provided with the packing ring outer wall, the neck is used to hold
Receive the supporting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720898404.6U CN207004647U (en) | 2017-07-20 | 2017-07-20 | A kind of high frequency muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720898404.6U CN207004647U (en) | 2017-07-20 | 2017-07-20 | A kind of high frequency muffler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207004647U true CN207004647U (en) | 2018-02-13 |
Family
ID=61455755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720898404.6U Expired - Fee Related CN207004647U (en) | 2017-07-20 | 2017-07-20 | A kind of high frequency muffler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207004647U (en) |
-
2017
- 2017-07-20 CN CN201720898404.6U patent/CN207004647U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180213 Termination date: 20200720 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |