CN106930873A - Air inlet pipe with noise elimination structure - Google Patents
Air inlet pipe with noise elimination structure Download PDFInfo
- Publication number
- CN106930873A CN106930873A CN201511035839.XA CN201511035839A CN106930873A CN 106930873 A CN106930873 A CN 106930873A CN 201511035839 A CN201511035839 A CN 201511035839A CN 106930873 A CN106930873 A CN 106930873A
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- Prior art keywords
- tube
- central tube
- air inlet
- inlet pipe
- envelope
- 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.)
- Pending
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- 230000008030 elimination Effects 0.000 title claims abstract description 19
- 238000003379 elimination reaction Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 7
- 238000001125 extrusion Methods 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
- F02M35/1255—Intake silencers ; Sound modulation, transmission or amplification using resonance
- F02M35/1266—Intake silencers ; Sound modulation, transmission or amplification using resonance comprising multiple chambers or compartments
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pipe Accessories (AREA)
Abstract
The present invention relates to automotive engine air intake system field, more particularly to a kind of air inlet pipe of engine.Air inlet pipe with noise elimination structure of the invention includes tube-like envelope, the central tube being inserted into the tube-like envelope and the region being arranged between the tube-like envelope and the central tube and at least two annular baffles set around the central tube.At least two annular baffle is set and by the region division between the tube-like envelope and the central tube at least two chambers along the axially spaced-apart of the central tube.The tube wall of the central tube has through hole.At least two chamber is connected by the through hole on tube wall with the inside of the central tube respectively.The tube-like envelope has section of different shapes in the axial direction, so that at least two chamber has different volumes.Air feeder structure structure of the invention is compacter and can eliminate multifrequency noise.
Description
Technical field
The present invention relates to automotive engine air intake system field, more particularly to a kind of air inlet with noise elimination structure
Pipe.
Background technology
In the prior art, the engine aspirating system of vehicle is used to purify air and the suppression for entering engine
The induction noise that engine is produced.Gas handling system is made up of air inlet pipe, air filter.In the prior art,
In order to reduce resistance of the air in air inlet pipe, air inlet pipe sets and only considers gas flowing, engine in itself
Engine intake airflow when load is increased suddenly is particularly in the course of work and has larger fluctuation, engine charge
Filter is that air filter can produce noise when by unstable airflow strikes.
To solve noise problem, prior art provides a kind of air inlet pipe with denoising structure, as shown in figure 1,
Air inlet pipe includes：The connecting tube 3 of air inlet pipe 1, resonator 2 and the connection resonant cavity 2 of air inlet pipe 1.However,
Prior art by setting resonator 2 and connecting tube 3, so as to take up too much space so that the entirety of inlet duct
Take up room big, structure is not compact.And, when needing to reduce multifrequency noise, it is necessary to set multiple different appearances
Long-pending resonator so that take up room bigger.
Accordingly, it would be desirable to be improved to existing air inlet pipe, on the premise of noise reduction purpose is reached, improve into
The space availability ratio of tracheae, makes air inlet pipe compacter.
The content of the invention
To solve to be taken up room greatly with the air inlet pipe of noise elimination structure in the prior art, structure is not compact enough to ask
Topic, the present invention provides the air inlet pipe with noise elimination structure of a compact conformation.
To solve the above problems, the invention provides a kind of air inlet pipe with noise elimination structure.It is described with disappearing
The air inlet pipe of acoustic form includes tube-like envelope, the central tube being inserted into the tube-like envelope and is arranged on institute
State region between tube-like envelope and the central tube and at least two ring-types that set around the central tube every
Plate.At least two annular baffle along the central tube axially spaced-apart set and by the tube-like envelope with
Region division between the central tube is at least two chambers.The tube wall of the central tube has through hole.It is described
At least two chambers are connected by the through hole on tube wall with the inside of the central tube respectively.The tube-like envelope edge
Axis direction has section of different shapes, so that at least two chamber has different volumes.
Compared with prior art, in air inlet pipe of the invention, by inserting central tube in tube-like envelope,
So as to the region between the central tube and the tube-like envelope forms resonator, and by the central tube
Through hole on tube wall is connected with central tube inside, so as to resonator is integrated in the air inlet pipe, so that
Obtain compact conformation；Further, by the annular baffle by between the central tube and the tube-like envelope
Region division is caused described many into multiple resonators by the form for causing tube-like envelope cross sectional shape different
Individual resonator has different volumes so as to cut down the noise of different frequency, many such that it is able to effectively abatement
Frequency noise.
Preferably, the central tube each section in the axial direction is identical.Due to the section of the central tube
Do not change, so as to will not cause that the flow resistance of the air inlet pipe changes, facilitate air intake duct system to design.
Preferably, the cross sectional shape of the tube-like envelope is along the axis direction consecutive variations.
Preferably, at least two annular baffle is fixed on the outer surface of the central tube.
Preferably, at least two annular baffle is integrally formed with the central tube by extrusion process.
Preferably, the central tube with the annular baffle as an entirety from one end of the tube-like envelope
It is inserted into the tube-like envelope.
Preferably, the tube-like envelope is in circular arc tubulose, and the central tube is also in circular arc tubulose, the center
Pipe is inserted into the tube-like envelope as one with the annular baffle entirely through a rotary motion.
Preferably, annular baffle is distributed along the axis uniform intervals of the central tube.
Preferably, the region between the tube-like envelope and the central tube is additionally provided with multiple in the axial direction
Multiple demarcation strips of extension, the demarcation strip is common with least two annular baffle by the tube-like envelope
With the region division between the central tube into multiple chambers, the multiple chamber is respectively by logical on the tube wall
Hole is connected with the inside of the central tube.
Preferably, at least two annular baffle and the demarcation strip pass through extrusion process with the central tube
It is integrally formed.
Preferably, the integrally formed central tube and annular baffle are made up of two integrally formed semicanals.
Preferably, the section of the central tube is circle, and the tube-like envelope first end is that section is circle,
The figure for being shaped as being made up of two sections of different camber lines of radian in the section at its second end.
Preferably, one section of radian of camber line and described first in two sections of camber lines described in the section at second end
The circular radian of end section is identical.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the air inlet pipe with noise elimination structure of prior art.
Fig. 2 is the cross-sectional view of air inlet pipe first embodiment of the present invention with noise elimination structure.
Fig. 3 is the schematic diagram of air inlet pipe end face shown in Fig. 1.
Fig. 4 is the schematic diagram of air inlet pipe other end shown in Fig. 1.
Fig. 5 is the central tube and annular baffle group of air inlet pipe second embodiment of the present invention with noise elimination structure
Close structural representation.
Fig. 6 is the cross-sectional view of air inlet pipe threeth implementation method of the present invention with noise elimination structure.
During Fig. 7 is air inlet pipe shown in Fig. 6, central tube is inserted into the motion schematic diagram in the tube-like envelope.
Specific embodiment
The inventors found that during prior art engine has an air inlet pipe of noise elimination structure, there is occupancy
Space is big, not compact enough the technical problem of structure.To solve the technical problem of prior art air inlet pipe, this hair
It is bright to propose a kind of air inlet pipe with noise elimination structure.The air inlet pipe with noise elimination structure includes tube-like envelope,
The central tube that is inserted into the tube-like envelope and it is arranged between the tube-like envelope and the central tube
Region and at least two annular baffles set around the central tube.At least two annular baffle is along institute
The axially spaced-apart for stating central tube is set and by the region division between the tube-like envelope and the central tube into extremely
Few two chambers.The tube wall of the central tube has through hole.At least two chamber is respectively by logical on tube wall
Hole is connected with the inside of the central tube.The tube-like envelope has section of different shapes in the axial direction,
So that at least two chamber has different volumes.
Compared with prior art, in air inlet pipe of the invention, by inserting central tube in tube-like envelope,
So as to the region between the central tube and the tube-like envelope forms resonator, and by the central tube
Through hole on tube wall is connected with central tube inside, so as to resonator is integrated in the air inlet pipe, so that
Obtain compact conformation；Further, by the annular baffle by between the central tube and the tube-like envelope
Region division is caused described many into multiple resonators by the form for causing tube-like envelope cross sectional shape different
Individual resonator has different volumes so as to cut down the noise of different frequency, many such that it is able to effectively abatement
Frequency noise.
It is right below in conjunction with the accompanying drawings to enable the above objects, features and advantages of the present invention more obvious understandable
Specific embodiment of the invention is described in detail.
Many details are elaborated in the following description in order to fully understand the present invention, but it is of the invention
Can also be different from other manner described here using other to implement, therefore the present invention is not by described below
Specific embodiment limitation.
Fig. 2 is referred to, Fig. 2 is the cross-section structure of air inlet pipe first embodiment of the present invention with noise elimination structure
Schematic diagram.The air inlet pipe 2 includes a tube-like envelope 21, is inserted into the central tube in the tube-like envelope 21
22 and at least two annular baffles 23 that are arranged between the central tube 22 and the shell 21.In described
The inside of heart pipe 22 is used as the inlet flow passage of the air inlet pipe 2.At least two annular baffle 23
Set around the central tube 22, and along the axis direction interval setting of the central tube 22, so as to by institute
State region between central tube 22 and the tube-like envelope 21 and be divided into multiple chambers 24.While the central tube 22
Tube wall on be provided with multiple through holes 221.The multiple chamber 24 passes through the through hole 221 and the central tube
22 inside connection is so that the resonance that noise elimination is acted on is played in the multiple chamber 24 in turning into the air inlet pipe 2
Chamber.
Wherein, the tube-like envelope 21 has cross sectional shapes different in the axial direction thereof, i.e. the pipe
The cross sectional shape that shape shell 21 at least corresponds to its two diverse location of axis is differed, so that
The multiple chamber 24 has different volumes, and then can slacken the noise of different frequency.Further referring to
Fig. 3 and Fig. 4, Fig. 3 are end view of the air inlet pipe 2 shown in Fig. 1 along A directions；Fig. 4 is Fig. 1 institutes
Show end view of the air inlet pipe 2 along B directions.Specifically, in the present embodiment, in the air inlet pipe 2
First end, the section of the tube-like envelope 21 is circle；At the second end of the air inlet pipe 2, the pipe
The cross sectional shape of shape shell 21 is the figure being made up of two sections of different camber lines of radian；The tube-like envelope 21
Cross sectional shape from the circle of the first end by continuous change, and excessively in second end by
The figure of the different two sections of camber lines composition of radian；So as to adjust the volume in the multiple chamber 24 so that described many
The corresponding different noise frequency of the volume in individual chamber 24.Due to the section consecutive variations of the tube-like envelope 21,
The mold design for producing the tube-like envelope 21 can be simplified, so that reduces cost；Optionally, according to described
The volume design in multiple chambers 24 needs, and the section of the tube-like envelope 21 can also discontinuously change.Wherein,
It is further preferred that one section of arc in the sectional view at second end should be with the circle of first end section
Shape radian is identical, so can further simplify mold design, reduces cost；It is preferred again, it is described its
In circular arc more long it is identical with the circular radian of first end section.
The central tube 22 is preferably designed to have identical section on its axis.In this way, in design institute
When stating the volume in multiple chambers 24, the complex-shaped degree of the tube-like envelope 21 can be simplified, simplify design；
Simultaneously as the section of the central tube 22 does not change, so as to will not cause that the flow resistance of the air inlet pipe 2 is sent out
Changing, facilitates air intake duct system to design.Optionally, the design needs according to air inlet pipe 2, the center
Pipe 22 can also have the section of change, and such as section gradually increases or reduces.
The annular baffle 23 is arranged in the region between the central tube 22 and outer 21 shells of the tubulose,
It is used to for the region to be separated into multiple chambers 24.Wherein, the annular baffle 23 is around the central tube 22
Set.The internal edge of the annular baffle 23 is butted on the outer surface of the central tube 22, the ring-type every
The outward flange of plate 23 is butted on the inner surface of the tube-like envelope 21 so that described each chamber 24 mutually every
From, but according to design needs of eliminating the noise, or in order to install needs, the annular baffle 23 can also with it is described
There is gap between the inner surface of tube-like envelope 21.Preferential, the annular baffle 23 is fixed on the center
On pipe 22, so that the central tube 22 and annular baffle 23 can be from the tube-like envelopes as an entirety
21 one end is inserted into the tube-like envelope 21, so as to facilitate the installation of the air inlet pipe 2.Wherein, such as
The annular baffle 23 can be fixed on the central tube 22 by form fit or frictional fit.Wherein
Preferably, the annular baffle 23 is integrally formed with the central tube 22.Annular baffle 23 and institute as described
Central tube 22 is stated to be integrally formed by an extrusion process.So that the structure of the air inlet pipe 2 simplifies,
Cause to isolate between described each chamber 24 simultaneously；Wherein, optionally, the integrally formed central tube 22
Can be made up of separate two semicanals 22A and 22B with the annular baffle 23, described two semicanals
22A and 22B are integrally formed by extrusion process respectively.Such that it is able to simplify the design of die casting.Enter one
Step is preferred, and the annular baffle 23 is spaced on the axis direction of the central tube 22 and is uniformly arranged, from
And while by adjusting the cross sectional shape of the tube-like envelope 21 come the volume for adjusting the chamber 24, due to
Interval between the annular baffle 23 is equal, it is possible to reduce the volume of the chamber 24 is because heat expansion is cold when casting
The difference in each chamber 24 that contracting is caused.So that the volume in each chamber 24 is more accurate so that it is described enter
The soundproof effect of tracheae 2 is more preferable.
Refer to Fig. 5, Fig. 5 be air inlet pipe second embodiment of the present invention with noise elimination structure central tube with
Annular baffle combining structure schematic diagram.The air inlet pipe of the second embodiment is entering for mode with described first
Tracheae 2 is essentially identical, and its difference is：The air inlet pipe still further comprises multiple along the axis of central tube 32
The demarcation strip 35 of extension；The demarcation strip 35 is arranged on the region between the central tube 32 and tube-like envelope,
And it is more to coordinate the region segmentation between the central tube 32 and tube-like envelope with the annular baffle 33
Chamber, and cause that each chamber is connected by the through hole 321 on the central tube 32 with the inside of central tube 32,
So as to reach more preferable soundproof effect.Wherein, it is preferred that the demarcation strip 25 can also with the ring-type every
Plate 33 is integrally formed and is fixed on the central tube 32, but so as to be inserted from one end with the one of central tube 32
Enter in the tube-like envelope.Further, the demarcation strip 25, the annular baffle 33 can also be with institutes
Central tube 32 is stated to be integrally formed.So as to reduce the part of the air inlet pipe, simplify mounting process.
It is air inlet pipe threeth implementation method of the present invention with noise elimination structure please refer to Fig. 6 and Fig. 7, Fig. 6
Cross-sectional view；During Fig. 7 is air inlet pipe 4 shown in Fig. 6, central tube 42 is inserted into the tubulose
Motion schematic diagram in shell 41.The air inlet pipe 4 of the 3rd implementation method is entering for mode with described second
Tracheae is essentially identical, and its difference is：The tube-like envelope 41 is in circular arc tubulose；The central tube 42
In circular arc tubulose；The demarcation strip 45 does an entirety with the annular baffle 43 and the central tube 42
Can be inserted into the tube-like envelope 41 from one end of the tube-like envelope 41 by rotary motion.By institute
It is circular arc tubulose that central tube 42 is stated with the tube-like envelope 41, so that area between two neighboring annular baffle 43
The different volume of multiple chamber self-assembling formations that domain is separated into by the demarcation strip 45, so as to effectively improve to multifrequency
The soundproof effect of noise.
Better embodiment of the invention is disclosed as above, but the present invention is not limited thereto.Such as above-mentioned
In three implementation methods, the air inlet pipe 4 can not also include the demarcation strip 45；In above-mentioned all embodiment party
In formula, the section of the tube-like envelope may not be and be constituted into by two sections of camber lines from a circular consecutive variations
Figure；It can also be from oval consecutive variations into square or rectangle etc., as long as according to the resonance
The volume design in chamber needs, and is reached by changing the shape in the section；The section shape of the central tube
Shape can also be oval, square etc..
Although the present invention is disclosed as above with preferred embodiment, the present invention is not limited to this.Any ability
Field technique personnel, without departing from the spirit and scope of the present invention, can make various changes or modifications, therefore
Protection scope of the present invention should be defined by claim limited range.
Claims (13)
1. a kind of air inlet pipe with noise elimination structure, the air inlet pipe includes tube-like envelope, is inserted into the tubulose
Central tube in shell and the region being arranged between the tube-like envelope and the central tube and around described
Central tube set at least two annular baffles, at least two annular baffle along the central tube axial direction
Interval setting and by the region division between the tube-like envelope and the central tube at least two chambers, it is described
The tube wall of central tube has through hole, and at least two chamber is respectively by the through hole and the central tube on tube wall
Inside connection, it is characterised in that the tube-like envelope in the axial direction have section of different shapes, from
And cause that at least two chamber has different volumes.
2. air inlet pipe as claimed in claim 1, it is characterised in that：The central tube in the axial direction each
Section is identical.
3. air inlet pipe as claimed in claim 1, it is characterised in that：The cross sectional shape of the tube-like envelope is along institute
State axis direction consecutive variations.
4. air inlet pipe as claimed in claim 1, it is characterised in that：At least two annular baffle is fixed on
The outer surface of the central tube.
5. air inlet pipe as claimed in claim 4, it is characterised in that：At least two annular baffle with it is described
Central tube is integrally formed by extrusion process.
6. air inlet pipe as claimed in claim 5, it is characterised in that：The central tube is made with the annular baffle
For an entirety is inserted into the tube-like envelope from one end of the tube-like envelope.
7. air inlet pipe as claimed in claim 5, it is characterised in that：The tube-like envelope is in circular arc tubulose, institute
Central tube is stated also in circular arc tubulose, and the central tube is with the annular baffle as one entirely through a rotation
Motion is inserted into the tube-like envelope.
8. air inlet pipe as claimed in claim 5, it is characterised in that：Annular baffle along the central tube axis
Uniform intervals are distributed.
9. the air inlet pipe as any one of claim 1 to 8, it is characterised in that：The tube-like envelope with
Region between the central tube is additionally provided with multiple multiple demarcation strips for extending in the axial direction, the separation
Plate and at least two annular baffle are common by the region division between the tube-like envelope and the central tube
Into multiple chambers, the multiple chamber is connected by the through hole on the tube wall with the inside of the central tube respectively.
10. air inlet pipe as claimed in claim 9, it is characterised in that：At least two annular baffle and institute
Demarcation strip is stated to be integrally formed by extrusion process with the central tube.
11. air inlet pipe as any one of claim 4 to 8, it is characterised in that：It is described to be integrally formed
Central tube and annular baffle be made up of two integrally formed semicanals.
12. air inlet pipe as any one of claim 3 to 8, it is characterised in that：The central tube
Section is circular identical, and the end section of the tube-like envelope first is circle, the shape in the section at its second end
It is the figure being made up of two sections of different camber lines of radian.
13. air inlet pipe as claimed in claim 11, it is characterised in that：Two described in the section at second end
One section of radian of camber line is identical with the circular radian of first end section in section camber line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511035839.XA CN106930873A (en) | 2015-12-30 | 2015-12-30 | Air inlet pipe with noise elimination structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511035839.XA CN106930873A (en) | 2015-12-30 | 2015-12-30 | Air inlet pipe with noise elimination structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106930873A true CN106930873A (en) | 2017-07-07 |
Family
ID=59444487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511035839.XA Pending CN106930873A (en) | 2015-12-30 | 2015-12-30 | Air inlet pipe with noise elimination structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106930873A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486202A (en) * | 2019-07-12 | 2019-11-22 | 安徽省锦瑞汽车部件有限公司 | A kind of automobile engine pressure after silencer |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5979598A (en) * | 1996-04-22 | 1999-11-09 | Woco Franz-Josef Wolf & Co. | Intake silencer for motor vehicle |
| GB0313192D0 (en) * | 2002-07-12 | 2003-07-16 | Visteon Global Tech Inc | Multi-chamber resonator |
| CN101230818A (en) * | 2007-01-23 | 2008-07-30 | 通用汽车环球科技运作公司 | Adjustable helmholtz resonator |
| DE102008005458A1 (en) * | 2008-01-22 | 2009-07-23 | Denker, Dietrich, Prof. Dr.-Ing. | Air and gas-supply pipe's flow noise reducing device i.e. diffuser damper, for engine compartment of motor vehicle, has inner pipe section connected with air and gas-supply pipe via separation wall and guided to pipe via nozzle |
| DE202009014112U1 (en) * | 2009-10-16 | 2010-01-07 | Ti Automotive Engineering Centre (Heidelberg) Gmbh | Silencer for a tubular body forming a cavity |
| CN103133194A (en) * | 2011-12-03 | 2013-06-05 | 通用汽车环球科技运作有限责任公司 | Muffler including a resonator slide-in unit where round pipeline can be guided |
| US20130263822A1 (en) * | 2010-10-22 | 2013-10-10 | Umfotec Umformtechnik Gmbh | Wide-band damper for charge air lines of an internal combustion engine with turbocharger |
| DE202013011555U1 (en) * | 2013-12-20 | 2014-02-20 | Jiajun Tian | Sound quality controller of the compressor air inlet side of the exhaust gas turbocharger |
| CN203585530U (en) * | 2012-09-28 | 2014-05-07 | 费希尔控制国际公司 | Modal attenuator |
| CN108343503A (en) * | 2017-01-22 | 2018-07-31 | 长城汽车股份有限公司 | Liquid feeding pipe fitting, liquid feeding pipe fitting assembly, radiator and vehicle |
-
2015
- 2015-12-30 CN CN201511035839.XA patent/CN106930873A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5979598A (en) * | 1996-04-22 | 1999-11-09 | Woco Franz-Josef Wolf & Co. | Intake silencer for motor vehicle |
| GB0313192D0 (en) * | 2002-07-12 | 2003-07-16 | Visteon Global Tech Inc | Multi-chamber resonator |
| CN101230818A (en) * | 2007-01-23 | 2008-07-30 | 通用汽车环球科技运作公司 | Adjustable helmholtz resonator |
| DE102008005458A1 (en) * | 2008-01-22 | 2009-07-23 | Denker, Dietrich, Prof. Dr.-Ing. | Air and gas-supply pipe's flow noise reducing device i.e. diffuser damper, for engine compartment of motor vehicle, has inner pipe section connected with air and gas-supply pipe via separation wall and guided to pipe via nozzle |
| DE202009014112U1 (en) * | 2009-10-16 | 2010-01-07 | Ti Automotive Engineering Centre (Heidelberg) Gmbh | Silencer for a tubular body forming a cavity |
| US20130263822A1 (en) * | 2010-10-22 | 2013-10-10 | Umfotec Umformtechnik Gmbh | Wide-band damper for charge air lines of an internal combustion engine with turbocharger |
| CN103133194A (en) * | 2011-12-03 | 2013-06-05 | 通用汽车环球科技运作有限责任公司 | Muffler including a resonator slide-in unit where round pipeline can be guided |
| CN203585530U (en) * | 2012-09-28 | 2014-05-07 | 费希尔控制国际公司 | Modal attenuator |
| DE202013011555U1 (en) * | 2013-12-20 | 2014-02-20 | Jiajun Tian | Sound quality controller of the compressor air inlet side of the exhaust gas turbocharger |
| CN108343503A (en) * | 2017-01-22 | 2018-07-31 | 长城汽车股份有限公司 | Liquid feeding pipe fitting, liquid feeding pipe fitting assembly, radiator and vehicle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486202A (en) * | 2019-07-12 | 2019-11-22 | 安徽省锦瑞汽车部件有限公司 | A kind of automobile engine pressure after silencer |
| CN110486202B (en) * | 2019-07-12 | 2022-01-11 | 安徽省锦瑞汽车部件有限公司 | Muffler after automobile engine presses |
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Application publication date: 20170707 |
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| RJ01 | Rejection of invention patent application after publication |