CN109790768A - A kind of muffler and its maintaining method - Google Patents
A kind of muffler and its maintaining method Download PDFInfo
- Publication number
- CN109790768A CN109790768A CN201780058604.3A CN201780058604A CN109790768A CN 109790768 A CN109790768 A CN 109790768A CN 201780058604 A CN201780058604 A CN 201780058604A CN 109790768 A CN109790768 A CN 109790768A
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- CN
- China
- Prior art keywords
- sound
- shell
- cylinder
- muffler
- noise
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
- F01N1/04—Silencing apparatus characterised by method of silencing by using resonance having sound-absorbing materials in resonance chambers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/06—Silencing apparatus characterised by method of silencing by using interference effect
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
- F01N1/10—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling in combination with sound-absorbing materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/24—Silencing apparatus characterised by method of silencing by using sound-absorbing materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
Abstract
The present invention relates to a kind of muffler and its maintaining methods.Muffler includes: hollow type shell, is linked in noise generating unit；And sound arrester, it is configured at the enclosure interior, and extend to be formed towards the length direction of the shell, the sound arrester includes multiple sound absorption units for noise reduction, and the length direction of the multiple sound absorption unit towards the shell interconnects.
Description
Technical field
The present invention relates to a kind of muffler and its maintaining methods.
Background technique
HVAC (Heating, Ventilation, Air Conditioning, air handling system) pipeline is applicable to use
In heating, ventilation and the fluid conveying of refrigeration.By pipeline come trandfer fluid, it can direct fluid into particular space or incite somebody to action
Fluid is exported from additional space.
It is provided with the air blower for fluid conveying on pipeline, the stream in pipeline can be passed through from the noise generated in air blower
Body and transmit.Therefore, a variety of noise reduction tools be may be provided on pipeline.As pipeline, diesel engine is due to its engine ignition
The explosion sound of generation can be transmitted by the fluid in exhaust pipe.
Fig. 1 illustrates the exhaust pipe noises of conventional engine.Referring to Fig.1, exhaust pipe noise is mainly generated compared to high frequency region
In low frequency range.
The muffler structure of traditional engine exhaust pipes is configured as, be coated in hollow type cylinder sound-absorbing material or
It is provided with sound-absorbing baffle.For the noise of high frequency region of the traditional exhaust pipe silencer with above structure for reducing Fig. 1
Although very effectively, then weaker for reducing the noise of low frequency range.
Summary of the invention
The problem to be solved in the present invention is, provides a kind of denoising device.
The problem to be solved in the present invention is not limited to problem described above, and those skilled in the art can be from following record
Content can be expressly understood that the problem of not referring to above or other problems.
In order to realize the above problem, muffler according to an embodiment of the invention, as a kind of its form (aspect), packet
Include: hollow type shell is linked in noise generating unit；And sound arrester, it is configured at the inside of the shell, and towards described
The length direction of shell extends to be formed, and the sound arrester includes multiple sound absorption units for noise reduction, the multiple sound-absorbing list
The length direction of member towards the shell interconnects.
The noise generating unit includes comb.
The sound absorption unit is by carrying out noise reduction using Helmholtz's sympathetic response.
The sound absorption unit and other adjacent sound absorption unit flange joints.
The sound absorption unit includes: Helmholtz resonator, is located on the cross section of the shell, and towards circumference side
To adjacent and interconnect.
Sound-absorbing material is formed on the medial surface of the Helmholtz resonator.
The sound absorption unit is configured to reduce with adjacent other sound absorption units equally or different ranges are made an uproar
Sound.
The guide part of angular shape is respectively formed on the front-end and back-end of the sound arrester.
Sound-absorbing material is formed on the medial surface of the shell.
The sound absorption unit includes the multiple resonating spaces separated by partition, is formed on the outer peripheral surface of the sound absorption unit
Have for being connected to the resonating spaces and external sympathetic response hole.
The noise generating unit includes pipeline, and the pipeline includes at least one access hole being connected to the shell.
The pipeline includes the upper pipe and lower pipeline connecting respectively with the upper and lower part of the shell, the inspection
It repairs mouth and is respectively formed in the upper pipe and the lower pipeline.
The both ends of the sound arrester further include: bolster is attached respectively to the both ends of the sound arrester.
Muffler according to another embodiment of the present invention, as a kind of its form (aspect), comprising: hollow type shell,
It is linked in pipeline；And sound arrester, it is configured at the inside of the shell, and making an uproar for the inside for flowing into the shell
There is the noise of specific frequency to generate reverse phase sound, to reduce the noise in sound；Regulating device, for adjusting the reverse phase
The frequency of sound.The sound arrester, comprising: hollow type cylinder；And hermetic type lid, the side for being used for the closed cylinder are opened
Put face；Style of opening lid, separates the other side open surface for being configured at the cylinder；And reflecting plate, it is set to the cylinder interior,
For reflecting the sound wave for flowing into the cylinder interior.
Further include: positioning bar is connected to the reflecting plate, and the regulating device is by the positioning bar applied force
Amount, to adjust position of the reflecting plate in the cylinder.
The positioning bar includes rack gear, and the regulating device includes pinion gear.
The sound arrester is configured to include: hollow type cylinder；First and second style of opening lid, separates and is formed in institute
State the two sides open surface of cylinder；And first and second reflecting plate, it is set in the cylinder, flows into the cylinder for reflecting
Interior sound wave.
The maintaining method of muffler according to an embodiment of the invention, as a kind of its form (aspect), comprising: respectively
Be connected to the top access hole that is respectively formed in the upper pipe and lower pipeline of the upper and lower part of the hollow type shell and
The step of lower part access hole is opened；The inside of the shell is being set to and towards the shell by the top access hole
The step of elevator portion is connected on the sound arrester that length direction is formed；The step of separating the sound arrester and the shell；Institute
The step of stating sound arrester decline；And by the lower part access hole come the step of safeguarding the sound arrester.
The sound arrester is configured to include: multiple sound absorption units, is mutually interconnected towards the length direction of the shell
It connects to be formed.
The maintaining method of the muffler further include: the step that the sound absorption unit is separated and is discharged by the access hole
Suddenly.
The particular content of other embodiments is contained in specific embodiment and attached drawing.
Detailed description of the invention
Fig. 1 illustrates the exhaust pipe noises of conventional engine；
Fig. 2 illustrates the front elevation that the housing parts of muffler according to an embodiment of the invention are cut open；
Fig. 3 illustrates the perspective view of the sound absorption unit of muffler shown in Fig. 2；
Fig. 4 illustrates the drawing in side sectional elevation of the sound absorption unit of muffler shown in Fig. 3；
Fig. 5 illustrates the precedence diagram of the maintaining method of muffler according to an embodiment of the present invention；
Fig. 6 illustrates the exemplary diagram of each process of the maintaining method of muffler according to a first embodiment of the present invention；
Fig. 7 illustrates the exemplary diagram of each process of the maintaining method of muffler according to a second embodiment of the present invention；
Fig. 8 illustrates the perspective view of muffler according to another embodiment of the present invention；
Fig. 9 illustrates the partial longitudinal section figure of muffler according to another embodiment of the present invention；
Figure 10 illustrates the sectional view of the AA line of Fig. 9；
Figure 11 illustrates the expanded view of the part B of Fig. 9；
Figure 12 illustrates the variation of the shell of Figure 11；
Figure 13 illustrates the sectional view of the muffler of still another embodiment according to the present invention；
Figure 14 illustrates the exploded perspective view of the muffler of still another embodiment according to the present invention；
Figure 15 illustrates the perspective view of muffler shown in Figure 14；
Figure 16 illustrates the exploded perspective view of sound arrester shown in Figure 14；
Figure 17 illustrates the sectional view of sound arrester shown in Figure 16；
Figure 18 illustrates the sectional view of muffler shown in figure 15；
Figure 19 and Figure 20 illustrates movement of the reflecting plate of muffler shown in Figure 14 in cylinder；
Figure 21 illustrates the sectional view of the muffler of still another embodiment according to the present invention；
Figure 22 illustrates the sound arrester of still another embodiment according to the present invention；
Figure 23 and Figure 24 illustrates the sectional view of the muffler of still another embodiment according to the present invention.
Specific embodiment
Hereinafter, present invention will be described in detail with reference to the accompanying preferred embodiment.Advantages of the present invention, feature and the side for realizing it
Method, can by referring to accompanying drawing with the embodiment that describes in detail below and definitely.But the invention is not limited to following notes
The embodiment of load, the present invention can by it is mutually different it is diversified in the form of implement, the present embodiment is only used for making this hair
Bright contents are more complete, and make this field that there is the technical staff of general knowledge completely to understand invention scope and provide
, the present invention is only defined by scope of the claims.The equivalent appended drawing reference occurred in specification full text refers to equivalent composition
Element.
If not giving specifically defined, all terms (including technology and scientific words) as used in this specification are
By the technical field of the invention can there is the technical staff of general knowledge to be commonly understood by.Also, not being defined in usually is made
It is clearly defined except not giving for term on dictionary, it is not understood to be the ideal or excessive meaning.
Referring to Fig. 2 and Fig. 7, muffler and its maintaining method according to an embodiment of the invention is described in detail.
Muffler 100 according to the present invention is used as denoising device, is set to the noise generating unit that noise occurs.Noise occurs
Portion can be the pipeline etc. of exhaust outlet or ventilation opening etc..
Muffler 100 is configured as, and is occurred to be formed with shell 110 in the generating unit of noise, is formed on the inside of shell 110
Sound arrester 120 can effectively carry out noise reduction.Sound arrester 120 according to an embodiment of the present invention can be by multiple 121 structures of sound absorption unit
At.In this way, can easily carry out upkeep operation when sound arrester 120 is cleaned or repaired.
Hereinafter, referring to Figure 2 to Figure 4, illustrating muffler according to an embodiment of the invention.
Fig. 2 illustrates the front elevation that the housing parts of muffler according to an embodiment of the invention are cut open；Fig. 3 is illustrated
The perspective view of the sound absorption unit of muffler shown in Fig. 2；Fig. 4 illustrates the cross section of the sound absorption unit of muffler shown in Fig. 3
Figure.
Muffler 100 according to the present invention can be configured to, including 110 grades of sound arresters 120 of shell.
Shell 110 is in hollow type, can be connected to pipeline 10a, 10b.Sound arrester 120 is removably coupled to shell
In 110, connected multiple sound absorption units 121 can be formed with towards the length direction of shell 110.
Pipeline 10a, 10b are connected to the exhaust outlet that noise occurs, and are the pipeline mobile for vehicle exhaust and noise, shell
110 can be linked on pipeline 10a, 10b.Pipeline 10a, 10b are by being connected to the upper end of shell 110 and the upper pipe of rear end
10a and lower pipeline 10b is constituted.Pipeline 10a, 10b are upper to be formed with access hole 11a, the 11b being connected to shell 110, in this regard,
It will be described in further detail later.
Shell 110 is fixed between upper pipe 10a and lower pipeline 10b, and is formed as and pipeline 10a, 10b linkage
In the shape of hollow type.Shell 110 is not limited to the shape of hollow type, can have the type profile of the multiplicity of quadrangle etc..It makes an uproar
Sound is directed into 110 inside of shell by exhaust outlet and pipeline 20, and the sound-absorbing material 140a by being set on 110 inner peripheral surface of shell and
Sound arrester 120 inside shell 110 absorbs.
Sound arrester 120 is the device for noise silencing exhaust orifice noise.Sound arrester 120 is formed in the inside of shell 110
Middle part, and separate to be formed towards the length direction of shell 110.The fixed cell 127 being formed on 120 both ends of sound arrester can
It is removably interconnected by bolted on connection portion 150 with the fixing port 128 for being formed in shell 110.But shell 110 and suction
The various ways of bolt, pin, rivet etc. can be used in the bind mode of mixer 120.The noise of shell 110 is directed into towards shell
The length direction of body 110 is mobile, and is absorbed by sound arrester 120, and being capable of effectively noise reduction.Sound arrester 120 is by that can distinguish
Multiple sound absorption units 121 of separation are formed by connecting.
Sound absorption unit 121 is connected by multiple sound absorption units 121 as the unit for constituting sound arrester 120 and forms sound-absorbing
Device 120.Be respectively formed with flange 122 on the top and bottom of sound absorption unit 121, adjacent sound absorption unit 121 it is convex
Edge 122 can be interconnected using coupling component 123.It, can as the connection tool between the flange 122 of adjacent sound absorption unit 121
Using bolt, pin etc., but it is not limited to this.The multiple sound absorption units 121 of reason are coupled and form sound arrester 120, therefore, inhale
The production and maintenance of mixer 120 will be more easier.
Sound absorption unit 121 is configured as, as shown in figure 4, its inner utilization partition separates, and is formed with multiple resonating spaces
126.The outer peripheral surface of sound absorption unit 121 can be formed with for being connected to resonating spaces 126 and external sympathetic response hole 124.That is, sound-absorbing list
Member 121 may include multiple Helmholtz resonators, and the multiple Helmholtz resonator is circumferentially disposed adjacent in shell
On the cross section of body 110, to form resonating spaces 126.
Helmholtz resonator is the device with narrow meshed enclosed type space apperance.Using the device principle such as
Under: when standing wave travels to acoustic resonator by aperture, standing wave waveform can be changed into new inverting type vibration, and shed to sympathetic response
Phase shift relative to specific frequency occurs as a result, for the outside of device, and specific standing wave is disappeared.To sound absorption unit
121 can be effectively reduced the exhaust outlet noise being passed to from shell 110 on 110 cross section of shell.
Sound absorption unit 121 can be configured to, including multiple Helmholtz resonators.Shape on the lateral surface of sound absorption unit 121
At there is sound-absorbing material 140b, the sound-absorbing material guide part 125 for fixing sound-absorbing material 140b can be formed with.
Sound-absorbing material guide part 125 is used for the fixed sound-absorbing material 140b being formed on the lateral surface of sound absorption unit 121, and
Prevent sound-absorbing material 140b deviation.
Sound arrester 120 passes through access hole 11a, the 11b that will be described later and exposes to pipeline 10a, 10b, to have
The structure that can be overhauled.
Access hole 11a, 11b may include top access hole 11a and lower part access hole 11b.The upper tube being connected to shell 110
Top access hole 11a and lower part access hole 11b are respectively formed on road 10a and lower pipeline 10b, sound arrester 120 is in shell
110 and pipeline 10a, 10b inside movement, and access hole 11a, 11b can be passed through and expose or be discharged.In order to sound arrester 120
Clean or place under repair to each sound absorption unit 121, sound arrester 120 can be moved to the position of access hole 11a, 11b
It sets.At this moment, the latch closure portion 129 that can be will be formed on the both ends of sound arrester 120 is connected on the cable 21 in elevator portion 20, to move
Dynamic sound arrester 120.Sound arrester 120 by being connected on the cable 21 in elevator portion 20, and can be moved to access hole 11a,
The position of 11b.The foreign substances that flue dust (soot) etc. may be generated are formed on the sound arrester 120 of exhaust outlet.It is available
Elevator portion 20 is moved to lower part access hole 11b for the sound arrester 120 for having these foreign substances is generated.Then, it is beaten by staff
The lid 12 of access hole 11a, 11b are opened, the foreign substances on sound arrester 120 are removed.In addition, when the connection for being coupled sound absorption unit 121
When knot part 123 is removed, can each sound absorption unit 121 be placed under repair or be replaced respectively.Thus, it is possible to uniformly keep being used for
The performance of the muffler 100 of noise reduction.Access hole 11a, 11b can only open use if necessary.
It, can be in sound arrester in order to protect sound arrester 120 when sound arrester 120 is moved to access hole 11a, 11b
Bolster 130 is formed on 120 both ends.
Bolster 130 can be formed on the both ends of sound arrester 120, be safeguarded with working as to sound arrester 120, and will be inhaled
When mixer 120 is moved to the position of access hole 11a, 11b, for avoiding the collision between sound arrester 120 and shell 110.
Hereinafter, the maintaining method of muffler according to a first embodiment of the present invention is described in detail referring to Fig. 5 to Fig. 6.
Fig. 5 illustrates the precedence diagram of the maintaining method of muffler according to an embodiment of the present invention；Fig. 6 is illustrated according to this hair
The exemplary diagram of each process of the maintaining method of the muffler of bright first embodiment.
Firstly, access hole 11a, 11b (S161) of open muffler 100.As shown in Fig. 6 its (a), it is respectively formed in connection
In on the upper pipe 10a and lower pipeline 10b of the upper and lower part of hollow type shell 110 top access hole 11a and lower part
The lid 12 of access hole 11b is opened.Access hole 11a, 11b and lid 12 are with bolted on connection, and therefore, user releases bolt just
The lid 12 of access hole 11a, 11b can be opened.
Then, elevator portion 20 is connected to sound arrester 120 (S162).As shown in Fig. 6 its (b), pass through top access hole
Elevator portion 20 is connected to towards the length direction of shell 110 and connects multiple sound absorption units 121 and the sound arrester of formation by 11a
On 120.That is, the cable 21 in elevator portion 20 can be connected to the latch closure portion being formed on the upper end of sound arrester 120 by user
129.Elevator portion 20 is set to the outside of muffler 10, and the cable 21 being wound in elevator portion 20 is securable on sound arrester 120
Latch closure portion 129.
Cable 21 is fixed to after latch closure portion 129, and shell 110 and sound arrester 120 separate (S163).That is, as Fig. 6 it
(c) shown in, the bolt in the bolted on connection portion 11 being formed on 120 both ends of sound arrester is released from.At this moment, when bolt is released from
When, sound arrester 120 is no longer connected on shell 110, but because the connection with elevator portion 20 will be located in shell 110
Side.
Then, the elevator portion 20 of sound arrester 120 is released, and sound arrester 120 can decline (S164).Such as its (d- of Fig. 6
1) shown in, when sound arrester 120 drops to the lower pipeline 10b equipped with access hole 21 by elevator portion 20, user can be
Lower part access hole 11b while moving sound absorption unit 121 by being cleaned.When user cleans, rolled up by unclamping
Raising portion 20 can decline by phased manner sound arrester 120.
Finally, positioned at the cleaning of the sound absorption unit 121 of lower part access hole 11b or after maintenance finishes, sound absorption unit 121
Decline, can be cleaned or be safeguarded (S166) to next sound absorption unit 121.By the above process repeatedly, can will be attached to
Foreign substances removal on the neck 124 of sound absorption unit 121.
Hereinafter, the maintaining method of muffler according to a second embodiment of the present invention is described in detail referring to Fig. 7.
Fig. 7 illustrates the exemplary diagram of each process of the maintaining method of muffler according to a second embodiment of the present invention.
The maintaining method of muffler 100 according to a second embodiment of the present invention, in addition to the discharged step of sound absorption unit 121
(S165) other than, in fact it is equal with aforementioned first embodiment.Therefore, for having illustrated in front about maintaining method
Illustrate, enclose equivalent appended drawing reference, and omits it and illustrate.
The maintaining method of muffler 100 according to a second embodiment of the present invention is configured as, comprising: under sound arrester 120
Be down to after the present position access hole 11b of lower part, sound absorption unit 121 from lower part access hole 11b be discharged the step of (S165).
Step (S165) is discharged in sound absorption unit 121 can include: sound arrester 120 drops to position locating for the access hole 11b of lower part
After setting, removal is set to the connecting piece 123 on sound absorption unit 121, so that each sound absorption unit 121 passes through lower part access hole 11b
It is expelled to external step.User takes out sound absorption unit 121, can be repaired respectively to each sound absorption unit 121, or
Replace the sound absorption unit 121 to break down.
When occurring abnormal on sound arrester 120, it is not necessary to replace entire sound arrester 120, but be directed to each sound-absorbing list
Member 121 is replaced or is repaired, therefore can easily implement its upkeep operation.
Part that sound arrester 120 of the present invention is formed with cellular construction and the access hole being formed by pipeline 10a, 10b
The part of 11a, 11b can be effectively reduced noise, and be convenient for the maintenance of muffler 100.
Hereinafter, illustrating the muffler of other embodiments according to the present invention by referring to Fig. 8 to Figure 22.According to other implementations
Example muffler can also mode as shown in Figures 5 to 7 safeguarded.
Fig. 8 illustrates the perspective view of muffler according to another embodiment of the present invention；Fig. 9 illustrates another according to the present invention
The partial longitudinal section figure of the muffler of embodiment；Figure 10 illustrates the sectional view of the AA line of Fig. 9；Figure 11 illustrates the part B of Fig. 9
Expanded view.
Referring to Fig. 8 and Fig. 9, muffler 200 includes shell 210 and sound arrester 220, and with noise generating unit (not shown)
It is coupled, to reduce the noise of noise generating unit.
For example, noise generating unit can be comb.At this moment, exhaust pipe etc. can be used in comb, and but it is not limited to this.Hereinafter,
Assuming that the noise generating unit being suitable on muffler 200 according to an embodiment of the present invention is exhaust pipe, it is illustrated.
In the present embodiment, it is assumed that exhaust pipe noise is incoming from the left hand inlet port end of shell 210 as shown in Figure 9 and from right side
Outlet end discharge.
In the present embodiment, mainly based on low frequency noise ingredient, muffler 200 has the exhaust pipe being coupled with muffler 200
It makes preparation for dropping the structure of low exhaust pipe low frequency noise ingredient.
Shell 210 is linked in exhaust pipe.It can be coupled with exhaust pipe flange according to the shell 210 of the present embodiment.Shell 210 is in
Hollow type shape.Exhaust pipe noise is passed to shell 210.
As an example, shell 210 can be in circular section as shown in Figure 10.As another example, shell 120 can be in such as Figure 12
Shown in quadrangle section.As reference, Figure 12 is the variation of the shell 210 of Figure 10.In addition to this, shell can also be in a variety of
The section of shape.
Referring to Fig. 9 and Figure 10, sound-absorbing material 211 can be formed on 210 medial surface of shell.It is formed in 210 medial surface of shell
On sound-absorbing material 211 for absorbing the radio-frequency component in exhaust pipe noise and be converted into thermal energy, to carry out noise reduction.
Sound arrester 220 is configured with inside shell 210.In the present embodiment, sound arrester 220 can be reduced in exhaust pipe noise
Low-frequency component.
Sound arrester 220 is configured in 210 bosom region of shell, can also separate configuration with the medial surface of shell 210.
Sound arrester 220 can be supported on the medial surface of shell 210 by individual supporting element (not shown).
The length direction of sound arrester 220 towards shell 210, which extends, to be formed.It is passed to the exhaust pipe noise court of shell 210
It is mobile to the length direction of shell 210, and absorbed by sound arrester 220, to effectively carry out noise reduction.
Referring to Fig. 9 and Figure 11, the length direction of sound arrester 220 towards shell 210 interconnects, and including the use of last of the twelve Earthly Branches nurse
Hereby sympathetic response carries out multiple sound absorption units 230 of noise reduction suddenly.When using Helmholtz's sympathetic response, exhaust pipe noise can be effectively absorbed
In low-frequency component.
As an example, sound absorption unit 230 can be with other adjacent 230 flange joints of sound absorption unit.At this moment, sound absorption unit
Flange 231 is formed on 230 both ends, the flange 231 of adjacent sound absorption unit 230 can be interconnected by bolt B and nut N.Such as
It is upper described, when sound absorption unit 230 has the structure with other 230 flange joints of sound absorption unit, it is easy to carry out sound arrester 220
Production, maintenance.
In the present embodiment, sound absorption unit 230 can include: as shown in Figure 10 to be placed on 210 cross section of shell and towards circle
Circumferential direction is adjacent and multiple Helmholtz resonators 240 for interconnecting.
Helmholtz resonator 240 is to be resonated and absorbed the device of sound to air on a specific frequency.For example,
Helmholtz resonator 240 can be in the big tripe tank shape of inlet contraction.This Helmholtz resonator 240 is placed in shell 210
On the cross section and direction of direction clockwise or counter-clockwise is adjacent and interconnects.At this moment, sound absorption unit 230 can be in shell
The exhaust pipe noise being passed to shell 210 is effectively absorbed on 210 cross section.
As an example, referring to Fig.1 0, the shell 210 that sound absorption unit 230 corresponds to rounded cross section can have round cross
Section.As another example, referring to Fig.1 2, sound absorption unit 260, which corresponds to, can have quadrangle in the shell 250 in tetragonal cross section
Cross section.Can have sound-absorbing material 251 on the inner face of shell 250.
Sound-absorbing material 241 can be formed on the lateral surface of Helmholtz resonator 240.At this moment, Helmholtz can be improved
The anti-acoustic capability of acoustic resonator 240.
Although being not shown in other embodiments, sound absorption unit can be made of single Helmholtz resonator.
Referring to Fig. 9, sound absorption unit 230 can be equal with other adjacent sound absorption units 230, or can reduce other ranges
Noise.
As an example, sound absorption unit 230 can reduce the noise of every other range.
As another example, sound absorption unit 230 can reduce the noise of all equivalent ranges.
It is used as another example again, sound absorption unit 230 belongs to a certain group in multiple groups to classify according to noise reduction range
In, each group can be configured adjacently towards the length direction of shell 210 with other groups.
Referring to Fig. 9, the front end close to the sound arrester 220 of 210 arrival end of shell and the sound-absorbing close to 210 outlet end of shell
The guide part 271,272 in angular shape can be respectively set on the rear end of device 220.
Guide part 271 set on 220 front end of sound arrester guides the air being passed to 210 arrival end of shell can be in shell
It is uniformly getd out of the way on 210 cross section.
Guide part 272 set on 220 rear end of sound arrester guides the exhaust pipe noise being displaced into inside shell 210 through shell
210 outlet ends are smoothly discharged.
Sound-absorbing material (not shown) can be formed on the lateral surface of guide part 271,272.
In addition, constituting the sound absorption unit 230 of muffler 200 by reducing using Helmholtz's sympathetic response in the present embodiment
The low frequency noise of exhaust pipe.
In another embodiment, muffler 200 could be applicable on the comb as other purposes other than exhaust pipe.
At this moment, the sound absorption unit for constituting muffler 200 cooperates the noise properties of corresponding comb, and can be used not is Helmholtz's sympathetic response
Other modes, to carry out noise reduction.At this moment, the comb noise being passed to shell 210 can also be by towards the length side of shell 210
To the sound absorption unit to interconnect, effectively progress noise reduction.
Figure 13 illustrates the sectional view of the muffler of still another embodiment according to the present invention.
Referring to Fig.1 3, muffler 201 can include: shell 210, sound arrester 220 and side shoot formula acoustic resonator 280.
Hollow type shell 210 can be coupled with exhaust pipe flange.Exhaust pipe noise can be passed to shell 210.Sound arrester 220
It can be placed in inside shell 210.Sound arrester 220 can reduce the low-frequency component of exhaust pipe noise.Sound arrester 220 may include multiple
Sound absorption unit 230.Illustrated in front about shell 210 and sound arrester 220, therefore will omit for it specifically
It is bright.
Side shoot formula acoustic resonator 280 can be formed along the medial surface of shell 210.Side shoot formula acoustic resonator 280 is for being passed to shell
Noise inside body 210 carries out the function of noise reduction.Side shoot formula acoustic resonator 280 may include cylinder 281.Cylinder 281 can be along shell
210 medial surface is formed.
Resonating spaces 282 can be formed between cylinder 281 and shell 210.It is passed to the noise inside shell 210 and passes through shape
It being passed to resonating spaces and is converted in the sympathetic response hole 283 on cylinder 281, the sound wave converted is spread out of by sympathetic response hole 283,
With offset noise.
Can have sound-absorbing material 281a on the one side of cylinder 281 towards sound arrester 220.Sound-absorbing material 281a can
Part reduces and is passed to the noise inside shell 210.
Figure 14 illustrates the exploded perspective view of the muffler of still another embodiment according to the present invention；Figure 15 illustrates Figure 14 institute
The perspective view of the muffler shown.
4 and Figure 15 referring to Fig.1, the muffler 300 of still another embodiment is configured as according to the present invention, comprising: shell
310, sound arrester 320 and regulating device 330.
Shell 310 can be connected to as hollow type with pipeline.In this way, shell 310 can be passed through by the fluid that pipeline is transferred
Hollow hole H1 transfer.
Shell 310 is configured as, comprising: main body 311 and flange 312.Hollow hole H1 can be formed with inside main body 311.It is convex
Edge 312 can be formed along the edge of the open surface of 310 two sides of shell.Flange 312 can be used for being coupled with pipeline.For example, flange
312 can be with pipeline bolted on connection.With being coupled for flange 312 and pipeline, shell 310 can be made to be connected to pipeline.
Sound arrester 320 is placed in inside shell 310, is played and is carried out noise reduction for flowing into the fluid inside shell 310
Function.In particular, sound arrester 320 according to an embodiment of the present invention can have for flowing into the noise inside shell 310
The noise of specific frequency generates reverse phase sound, to carry out noise reduction.
Sound arrester 320 generates reverse phase sound by the noise inside shell 310, and reverse phase sound is adjusted in sound arrester 320
The frequency of sound.In this way, can concentrate reduces the noise for corresponding to the reverse phase sound frequency exported by sound arrester 320.
Sound arrester 320 may include being coupled handle 326.Being coupled handle 326 can be with 313 spiral shell of fixed handle inside shell 310
Bolt is coupled.Be coupled handle 326 towards sound arrester 320 lateral direction protrusion is formed, the fixed handle 313 of shell 310 can be placed in
It is coupled the coupled position of handle 326.
With 313 bolted on connection of fixed handle towards prominent the connection handle 326 and shell 310 formed of lateral direction, sound-absorbing
Device 320 can keep 310 inner face of shrinking away from theshell body to separate the state of a fixed spacing.The fluid for flowing into shell 310 can be by being formed in
It is transferred in space between the outside of sound arrester 320 and the inner face of shell 310.
For the specific composition of sound arrester 320, will be illustrated later by Figure 16.
Regulating device 330 plays the frequency of reverse phase sound the function of adjusting.Sound arrester 320, which has, is used for reflected sound
The reflecting plate 324 (referring to Fig.1 6) of wave, by regulating device 330, the position of reflecting plate 324 changes, so as to adjust
The frequency of sound wave.Position for changing reflecting plate 324 by regulating device 330 illustrates, will later by figure
19 and Figure 20 is illustrated.
Regulating device 330 can include: handle 331 and pinion gear 332.Pinion gear 332 can on the one side of handle 331 court
It is prominent in outward direction to be formed.
Pinion gear 332 is inserted into inside shell 310, and handle 331 can be placed in outside shell 310.In order to be inserted into pinion gear
332, insertion hole can be formed on shell 310.
By rotating handle 331, pinion gear 332 can be made to be rotated.Pinion gear 332 is linked in by gear is connected to suction
Positioning bar 325 (referring to Fig.1 6) on the reflecting plate 324 of mixer 320 is used in the position adjusting for adjusting positioning bar 325.
The position of positioning bar 325 is changed, by pinion gear 332 so as to change the position of the reflecting plate 324 in sound arrester 320
It sets.
Figure 16 illustrates the exploded perspective view of sound arrester shown in Figure 14；Figure 17 illustrates sound arrester shown in Figure 16
Sectional view.
Referring to Fig.1 6, sound arrester 320 is configured as, comprising: cylinder 321, hermetic type lid 322, opening lid 323, anti-
Penetrate plate 324 and positioning bar 325.
Cylinder 321 can have hollow hole H2.Cylinder 321 can have corresponding to the shape inside shell 310.For example, working as shell
When the 310 cylindrical shape in inside of body, the shape of cylinder 321 is also possible to cylindrical shape.But it is only used as exemplary illustration,
The shape of cylinder 321 can not be limited by 310 shape of shell, be formed as the shape of various shapes.
Referring to Fig.1 7, can have sound-absorbing material 321a on the outside of cylinder 321.The fluid for flowing into shell 310 can pass through
The space transfer being formed between 320 outside of sound arrester and 310 inner face of shell, by the sound-absorbing material being set in cylinder 321
321a carries out noise reduction.
Referring again to Figure 16, hermetic type lid 322 is played for 321 side open surface (hereinafter referred to as first of enclosed cylinder
Open surface) effect.Cylinder 321 includes two open surfaces, and the first open surface can be closed by hermetic type lid 322.
What opening lid 323 can be separated with the other side open surface (hereinafter referred to as the second open surface) with cylinder 321
Mode configures.As opening lid 323 is configured in a manner of separating with the second open surface, so that 321 inner space of cylinder connects
To outside.
It can be equipped on hermetic type lid 322 and opening lid 323 and be coupled handle 326.As described in aforementioned, it is coupled handle 326 and passes through connection
It ties on the fixed handle 313 of shell 310, can be used for sound arrester 320 being fixed on shell 310.
Being created on the noise inside shell 310 can be flowed into inside cylinder 321 by the second open surface.Then, it flows into
Noise inside cylinder 321 is reflected by 321 inner face of cylinder, and is converted to reverse phase sound, and reverse phase sound can pass through the second open surface
Outflow.It will be decayed the noise being created on inside shell 310 by the reverse phase sound generated in this way.
Reflecting plate 324 is set to inside cylinder 321, plays the function of being reflected the sound wave flowed into inside cylinder 321.
The sound wave flowed into inside cylinder 321 can not only be reflected by 321 inner face of cylinder, can also be reflected by reflecting plate 324.By cylinder 321
The sound wave that inner face and reflecting plate 324 reflect can be converted into the reverse phase sound of noise.
The position of reflecting plate 324 can be adjusted inside cylinder 321.When the position of reflecting plate 324 is conditioned, reflection
The distance between plate 324 and the second open surface will change, thus, can also it be occurred according to its frequency apart from reverse phase sound
Variation.
In order to adjust the position of reflecting plate 324, positioning bar 325 may be configured on reflecting plate 324.Adjusting rod 325 can direction
The transfer direction of fluid is formed and secured to reflecting plate 324 longlyer.
The aforementioned regulating device 330 can be adjusted anti-inside cylinder 321 and applying strength to positioning bar 325
Penetrate the position of plate 324.In the present invention, positioning bar 325 may include rack gear.Rack gear can be with 332 gear of pinion gear of regulating device 330
It is coupled.The position of positioning bar 325 can change by the length direction that is rotated towards of pinion gear 332.With positioning bar 325
Position changes, and the position of the reflecting plate 324 in cylinder 321 can be conditioned.
Figure 18 illustrates the sectional view of muffler shown in figure 15.
Referring to Fig.1 8, sound arrester 320 can be set to inside shell 310.Sound arrester 320 is configured as, and is filled by sound-absorbing
313 bolted on connection of fixed handle for setting 320 connection handle 326 and shell 310, can be fixed in shell 310.
As the lateral direction for being coupled handle 326 towards sound arrester 320 is prominent, fixed handle 313 is towards the inside of shell 310
Direction is prominent, and sound arrester 320 corresponds to the state that the inner face of shell 310 can be maintained spaced apart by.
Sound-absorbing material 311a, 311b can be equipped on the inner face of shell 310 and the outside of cylinder 321.Because fluid is flowed in shell
The noise occurred inside body 310 can be reduced by sound-absorbing material 311a, 321a.
Sound-absorbing material 323a can be equipped on the medial surface of opening lid 323.Sound-absorbing material 323a is played will be by cylinder 321
The second open surface and the effect that is absorbed of the partial inversion sound that flows out.When the reverse phase sound flowed out from cylinder 321 is because opening
When putting type lid 323 and being reflected, reflected sound can expand noise.As sound-absorbing material 323a inhibits the reflection of reverse phase sound, can prevent
The only expansion of noise.
The inside of cylinder 321 can be flowed by the second open surface of cylinder 321 by being formed in the noise inside shell 310.
The noise of inflow is from 321 internal reflection of cylinder and can be exchanged into the reverse phase sound of noise opposite in phase.Reverse phase sound passes through second
Open surface is flowed out to outside again, and the reverse phase sound and noise flowed out collides, and being capable of noise attenuation size.
In 310 inside of shell, pinion gear 332 and positioning bar 325 can gear connections.In this way, with the rotation of pinion gear 332
Turn, the position of positioning bar 325 can change.Specifically, passing through the rotation of pinion gear 332, positioning 325 position of bar can occur
It is parallel to the change in location in fluid transfer direction.
Figure 19 and Figure 20 illustrates movement of the reflecting plate of muffler shown in Figure 14 in cylinder.
The position of 9 and Figure 20 referring to Fig.1, reflecting plate 324 can be adjusted inside cylinder 321.
By the change in location for bar 325 of transposing, the position of reflecting plate 324 can also be conditioned.Specifically, reflecting plate 324
Position can be adjusted to be parallel to the fluid transfer direction inside shell 310.
The noise flowed into inside cylinder 321 is reflected by the inner wall and reflecting plate 324 of cylinder 321, and is converted to
Reverse phase sound SW1, SW2, as the position of reflecting plate 324 changes, the frequency of reverse phase sound SW1, SW2 can also become
Change.
User by using handle 331 come rotary pinion 332, the position of reflecting plate 324 can be adjusted.With anti-
The position for penetrating plate 324 is conditioned, it may occur that reverse phase sound SW1, SW2 of mutually different frequency, so as to concentrate decaying corresponding
The noise of frequency.For example, reflecting plate 324 is adjusted for the maximum noise in the noise currently occurred of decaying in user
Position.
Figure 21 illustrates the sectional view of the muffler of still another embodiment according to the present invention.
Referring to Figure 21, muffler 400 is configured as, comprising: shell 400, sound arrester 420 and regulating device 430a,
430b。
Shell 410 can be connected to as hollow type with pipeline.Sound arrester 420 is set to inside shell 410, can be reduced and be flowed into
Noise caused by fluid inside shell 410.Regulating device 430a, 430b plays the function of adjusting reverse phase sound frequency.Shell
410, the form and function of sound arrester 420 and regulating device 430a, 430b equivalent or similar to the aforementioned shell 310,
Therefore the form and function of sound arrester 320 and regulating device 330 are illustrated mainly around its distinctive points herein.
Sound arrester 420 is configured as, comprising: the opening lid 422a of cylinder 421, first, the second opening lid 422b, the
One reflecting plate 423a, the second reflecting plate 423b, the first positioning bar 424a and the second positioning bar 424b.
Cylinder 421 can have hollow hole.Cylinder 421 can be in the shape corresponded to inside shell 410.
The first opening opening lid 422b of lid 422a and second can be from the mutually different other side open surface of cylinder 421
(the first open surface and the second open surface) separates to be formed.The first opening opening lid 422b of lid 422a and second is respectively with first
Open surface and the second open surface separate to be formed, so that the inner space of cylinder 421 is connected to outside.
The first opening opening lid 422b of lid 422a and second, which can be equipped with, is coupled handle.As described in aforementioned, it is coupled handle and is coupled
In on the fixed handle of shell 410, be used to sound arrester 420 being fixed on shell 410.
The interior of cylinder 421 can be flowed by the first open surface and the second open surface by being created on the noise inside shell 410
Portion.Then, the noise flowed into inside cylinder 421 reflects and is converted into reverse phase sound by the inner face of cylinder 421, and reverse phase sound
Sound can be flowed out by the second open surface.The reverse phase sound generated in this way can decay the noise being created on inside shell 410.
First reflecting plate 423a and the second reflecting plate 423b is set to inside cylinder 421, is played and is flowed into cylinder for reflecting
The effect of sound wave inside 421.The sound wave flowed into inside cylinder 421 can not only be reflected by 421 inner face of cylinder, but also can quilt
First reflecting plate 423a and the second reflecting plate 423b reflection.
The noise for flowing into the first open surface is reflected by 421 inner face of cylinder and the first reflecting plate 423a, is made an uproar to be changed into
The reverse phase sound of sound.Equally with this, the noise for flowing into the second open surface is anti-by 421 inner face of cylinder and the second reflecting plate 423b
It penetrates, to be changed into the reverse phase sound of noise.
In 421 inside of cylinder, the position of the first reflecting plate 423a and the second reflecting plate 423b can be conditioned.When first anti-
It penetrates plate 423a and when the second position reflecting plate 423b is conditioned, the distance between the first reflecting plate 423a and the first open surface can be sent out
Changing or the distance between the second reflecting plate 423b and the second open surface can change.With reflecting plate and open surface
The distance between, the frequency of reverse phase sound can change.
By adjusting the position of the first reflecting plate 423a and the second reflecting plate 423b, the reflection of the first reflecting plate 423a and second
The positioning of the first positioning bar 424a and second bar 424b can be respectively equipped on plate 423b.First positioning bar 424a and the second positioning bar
The transfer direction of 424b towards fluid is formed longlyer, and can be individually fixed in the first reflecting plate 423a and the second reflecting plate 423b
On.
Regulating device 430a, 430b may include the first regulating device 430a and the second regulating device 430b.First adjusts dress
The position of 421 the first reflecting plate 423a of inside of cylinder can be adjusted and applying strength to the first positioning bar 424a by setting 430a.
Equally with this, the second regulating device 430b can be adjusted inside cylinder 421 and applying strength to the second positioning bar 424b
The position of second reflecting plate 423b.In the present invention, the first positioning bar 424a and the second positioning bar 424b may include rack gear.Rack gear can
It is coupled with the pinion gear gear of regulating device 430a, 430b.Action relationships between rack-and-pinion carried out in front
Illustrate, therefore omits it herein and illustrate.
In 421 inside of cylinder, the position of the first reflecting plate 423a and the second reflecting plate 423b can independently be determined.In this way,
The reverse phase sound of mutually different frequency can be flowed out by the first open surface and the second open surface.
Figure 22 illustrates the sound arrester of still another embodiment according to the present invention.
Referring to Figure 22, sound arrester 500 is configured as, comprising: cylinder 510 and hermetic type lid 520.
Cylinder 510 can be equipped with hollow hole.Cylinder 510 can be in the shape corresponding to cylinder interior.Cylinder can be set on 510 surface
There is the sympathetic response hole RH for being connected to inner hollow hole.It is equipped with partition inside cylinder 510, can be formed with by partition corresponding to sympathetic response hole
The resonating spaces of RH.That is, a resonating spaces corresponding to a sympathetic response hole RH can be formed.
Noise can flow into resonating spaces by sympathetic response hole RH.The noise flowed into is reflected and is changed into anti-by resonating spaces
Phase sound, reverse phase sound flow out to outside by sympathetic response hole RH.
Hermetic type lid 520 plays the function of the open surface of 510 two sides of enclosed cylinder.Cylinder 510 include two open surfaces, two
A open surface can be closed by hermetic type lid 520.In this way, only can be with outside by sympathetic response hole RH inside cylinder 510
Connection.Sound arrester 500 as shown in figure 22 may include last of the twelve Earthly Branches nurse hertz acoustic resonator.
Figure 23 and Figure 24 illustrates the sectional view of the muffler of still another embodiment according to the present invention.
Referring to Figure 23, muffler 600 is configured as, comprising: shell 610, sound arrester 320,500 and regulating device 620.
Shell 610 can be connected to as hollow type with pipeline.Sound arrester 320,500 is set to inside shell 610, can reduce stream
Enter to noise caused by the fluid inside shell 610.
Sound arrester (hereinafter referred to as the first sound arrester) 320 as shown in figure 16 can be equipped on shell 610 and as schemed
Sound arrester shown in 22 (hereinafter referred to as the second sound arrester) 500.
First sound arrester 320 is equipped with reflecting plate 324, so that the reverse phase sound of different frequency flows out.Second sound arrester
500 can be last of the twelve Earthly Branches nurse hertz acoustic resonator.
Regulating device 620 plays the function for adjusting the reverse phase sound frequency flowed out from the first sound arrester 320.First
Sound arrester 320 is equipped with the reflecting plate 324 for reflecting sound wave, and the position of reflecting plate 324 is become by regulating device 620
Change, to adjust the frequency of sound wave.
Regulating device 620 may include handle 621 and pinion gear 622.Pinion gear 622 is inserted in inside shell 610, handle
621 can be set to outside shell 610.Pinion gear 622 can be made to be rotated by rotating handle 621.622 gear of pinion gear is linked in
The positioning bar 325 being connected on the reflecting plate 324 of the first sound arrester 320, so as to be used to adjust for the position of positioning bar 325
It sets.The position of positioning bar 325 is changed by pinion gear 622, so that being located at anti-in the first sound arrester 320
The position for penetrating plate 324 changes.
Referring to Figure 24, muffler 700 is configured as, comprising: shell 710, sound arrester 721,722 and regulating device 730.
Shell 710 can be connected to as hollow type with pipeline.Sound arrester 721,722 is set to inside shell 710, and playing can drop
The function of noise caused by the low fluid flowed into inside shell 710.
Sound arrester 721,722 may include third sound arrester 721 and the 4th sound arrester 722.Third sound arrester 721
The reverse phase sound of mutually different frequency can be made to flow out equipped with reflecting plate 734.4th sound arrester 722 can be the hertz sympathetic response of last of the twelve Earthly Branches nurse
Device.
Third sound arrester 721 and the 4th sound arrester 722 one-piece type can be formed.Third sound-absorbing can be equipped in one main body
Device 721 and the 4th sound arrester 722.The form and function of third sound arrester 721 and the 4th sound arrester 722 and aforementioned institute
The form and function of the first sound arrester 320 and the second sound arrester 500 stated are similar, omit illustrate to it herein.
Regulating device 730 may include handle 731 and pinion gear 732.Pinion gear 732 is inserted in inside shell 710, handle
731 can be set to outside shell 710.Pinion gear 732 can be made to be rotated by rotating handle 731.732 gear of pinion gear is linked in
The positioning bar 735 being connected on the reflecting plate 734 of third sound arrester 721, so as to be used to adjust for the position of positioning bar 735
It sets.The position of positioning bar 735 is changed by pinion gear 732, so that being located at anti-in third sound arrester 721
The position for penetrating plate 734 changes.
More than, with reference to the accompanying drawings of the embodiment of the present invention, still, fields of the present invention have the technology of general knowledge
For personnel it is to be understood that in the case where not changing technical thought of the invention or essential feature, the present invention can be with other tools
Volume morphing is implemented.It is therefore to be understood that embodiment described above is illustrative on all faces, and it is not limited to this.
Claims (according to the 19th article of modification of treaty)
1. a kind of muffler characterized by comprising
Hollow type shell is linked in noise generating unit；And
Sound arrester is configured at the inside of the shell, and extends to be formed towards the length direction of the shell,
The sound arrester includes multiple sound absorption units for noise reduction, length of the multiple sound absorption unit towards the shell
Direction interconnects.
2. muffler according to claim 1, which is characterized in that
The noise generating unit includes comb.
3. muffler according to claim 1, which is characterized in that
The sound absorption unit is by carrying out noise reduction using Helmholtz's sympathetic response.
4. muffler according to claim 3, which is characterized in that
The sound absorption unit and other adjacent sound absorption unit flange joints.
5. muffler according to claim 3, which is characterized in that
The sound absorption unit includes:
Helmholtz resonator is located on the cross section of the shell, and adjacent towards circumferencial direction and interconnect.
6. muffler according to claim 5, which is characterized in that
Sound-absorbing material is formed on the medial surface of the Helmholtz resonator.
7. muffler according to claim 3, which is characterized in that
The sound absorption unit is configured to reduce with other adjacent sound absorption units equally or the noise of different ranges.
8. muffler according to claim 3, which is characterized in that
The guide part of angular shape is respectively formed on the front-end and back-end of the sound arrester.
9. muffler according to claim 3, which is characterized in that
Sound-absorbing material is formed on the medial surface of the shell.
10. muffler according to claim 1, which is characterized in that further include:
Side shoot formula acoustic resonator, forms along the medial surface of the shell.
11. muffler according to claim 10, which is characterized in that
Sound-absorbing material is formed on the one side of the side shoot formula acoustic resonator towards the sound arrester.
12. muffler according to claim 1, which is characterized in that
The sound absorption unit includes the multiple resonating spaces separated by partition,
It is formed on the outer peripheral surface of the sound absorption unit for being connected to the resonating spaces and external sympathetic response hole.
13. muffler according to claim 1, which is characterized in that
The noise generating unit includes pipeline,
The pipeline includes at least one access hole being connected to the shell.
14. muffler according to claim 12, which is characterized in that
The pipeline includes the upper pipe and lower pipeline connecting respectively with the upper and lower part of the shell,
The access hole is respectively formed in the upper pipe and the lower pipeline.
15. muffler according to claim 1, which is characterized in that further include:
Bolster is attached respectively to the both ends of the sound arrester.
16. a kind of muffler characterized by comprising
Hollow type shell, is linked in pipeline；And
Sound arrester is configured at the inside of the shell, and has in the middle for the noise for the inside for flowing into the shell
The noise of specific frequency generates reverse phase sound, to reduce the noise,
The sound arrester includes:
Hollow type cylinder；And
Reflecting plate is configured at for for the noise generation reverse phase sound in the inner space of the cylinder with specific frequency
Sound and desired position, and the sound wave flowed into the cylinder is reflected, to generate the reverse phase sound.
17. muffler according to claim 16, which is characterized in that
The sound arrester is configured as further include:
Hermetic type lid is used for the side open surface of the closed cylinder；And
Style of opening lid, separates the other side open surface for being configured at the cylinder.
18. muffler according to claim 17, which is characterized in that further include:
Regulating device is used to adjust the frequency of the reverse phase sound；And
Positioning bar, is connected to the reflecting plate,
The regulating device is by applying strength to the positioning bar, to adjust position of the reflecting plate in the cylinder.
19. muffler according to claim 18, which is characterized in that
The positioning bar includes rack gear,
The regulating device includes pinion gear.
20. muffler according to claim 16, which is characterized in that
The sound arrester is configured to include:
Hollow type cylinder；
First and second style of opening lid, separates the two sides open surface for being formed in the cylinder；And
First and second reflecting plate is set in the cylinder, for reflecting the sound wave flowed into the cylinder.
21. a kind of maintaining method of muffler characterized by comprising
It is connected to the top being respectively formed in the upper pipe and lower pipeline of the upper and lower part of the hollow type shell
The step of access hole and lower part access hole are opened；
By the top access hole in the sound-absorbing for being set to the inside of the shell and being formed towards the length direction of the shell
The step of elevator portion is connected on device；
The step of separating the sound arrester and the shell；
The step of sound arrester declines；And
By the lower part access hole come the step of safeguarding the sound arrester.
22. the maintaining method of muffler according to claim 21, which is characterized in that
The sound arrester is configured as, comprising:
Multiple sound absorption units are interconnected to form towards the length direction of the shell.
23. the maintaining method of muffler according to claim 22, which is characterized in that further include:
The step of sound absorption unit is separated and is discharged by the access hole.
Claims (23)
1. a kind of muffler characterized by comprising
Hollow type shell is linked in noise generating unit；And
Sound arrester is configured at the inside of the shell, and extends to be formed towards the length direction of the shell,
The sound arrester includes multiple sound absorption units for noise reduction, length of the multiple sound absorption unit towards the shell
Direction interconnects.
2. muffler according to claim 1, which is characterized in that
The noise generating unit includes comb.
3. muffler according to claim 1, which is characterized in that
The sound absorption unit is by carrying out noise reduction using Helmholtz's sympathetic response.
4. muffler according to claim 3, which is characterized in that
The sound absorption unit and other adjacent sound absorption unit flange joints.
5. muffler according to claim 3, which is characterized in that
The sound absorption unit includes:
Helmholtz resonator is located on the cross section of the shell, and adjacent towards circumferencial direction and interconnect.
6. muffler according to claim 5, which is characterized in that
Sound-absorbing material is formed on the medial surface of the Helmholtz resonator.
7. muffler according to claim 3, which is characterized in that
The sound absorption unit is configured to reduce with other adjacent sound absorption units equally or the noise of different ranges.
8. muffler according to claim 3, which is characterized in that
The guide part of angular shape is respectively formed on the front-end and back-end of the sound arrester.
9. muffler according to claim 3, which is characterized in that
Sound-absorbing material is formed on the medial surface of the shell.
10. muffler according to claim 1, which is characterized in that further include:
Side shoot formula acoustic resonator, forms along the medial surface of the shell.
11. muffler according to claim 10, which is characterized in that
Sound-absorbing material is formed on the one side of the side shoot formula acoustic resonator towards the sound arrester.
12. muffler according to claim 1, which is characterized in that
The sound absorption unit includes the multiple resonating spaces separated by partition,
It is formed on the outer peripheral surface of the sound absorption unit for being connected to the resonating spaces and external sympathetic response hole.
13. muffler according to claim 1, which is characterized in that
The noise generating unit includes pipeline,
The pipeline includes at least one access hole being connected to the shell.
14. muffler according to claim 12, which is characterized in that
The pipeline includes the upper pipe and lower pipeline connecting respectively with the upper and lower part of the shell,
The access hole is respectively formed in the upper pipe and the lower pipeline.
15. muffler according to claim 1, which is characterized in that further include:
Bolster is attached respectively to the both ends of the sound arrester.
16. a kind of muffler characterized by comprising
Hollow type shell, is linked in pipeline；And
Sound arrester is configured at the inside of the shell, and has in the middle for the noise for the inside for flowing into the shell
The noise of specific frequency generates reverse phase sound, to reduce the noise；And
Regulating device is used to adjust the frequency of the reverse phase sound.
17. muffler according to claim 16, which is characterized in that
The sound arrester includes:
Hollow type cylinder；
Hermetic type lid is used for the side open surface of the closed cylinder；
Style of opening lid, separates the other side open surface for being configured at the cylinder；And
Reflecting plate is configured at the inside of the cylinder, and the sound wave flowed into the cylinder is reflected.
18. muffler according to claim 17, which is characterized in that further include:
Positioning bar, is connected to the reflecting plate,
The regulating device is by applying strength to the positioning bar, to adjust position of the reflecting plate in the cylinder.
19. muffler according to claim 18, which is characterized in that
The positioning bar includes rack gear,
The regulating device includes pinion gear.
20. muffler according to claim 16, which is characterized in that
The sound arrester is configured to include:
Hollow type cylinder；
First and second style of opening lid, separates the two sides open surface for being formed in the cylinder；And
First and second reflecting plate is set in the cylinder, for reflecting the sound wave flowed into the cylinder.
21. a kind of maintaining method of muffler characterized by comprising
It is connected to the top being respectively formed in the upper pipe and lower pipeline of the upper and lower part of the hollow type shell
The step of access hole and lower part access hole are opened；
By the top access hole in the sound-absorbing for being set to the inside of the shell and being formed towards the length direction of the shell
The step of elevator portion is connected on device；
The step of separating the sound arrester and the shell；
The step of sound arrester declines；And
By the lower part access hole come the step of safeguarding the sound arrester.
22. the maintaining method of muffler according to claim 21, which is characterized in that
The sound arrester is configured as, comprising:
Multiple sound absorption units are interconnected to form towards the length direction of the shell.
23. the maintaining method of muffler according to claim 22, which is characterized in that further include:
The step of sound absorption unit is separated and is discharged by the access hole.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2016-0121909 | 2016-09-23 | ||
| KR1020160121909A KR101834484B1 (en) | 2016-09-23 | 2016-09-23 | maintenance apparatus and method for maintenance apparatus of silencer |
| KR1020170111867A KR102027262B1 (en) | 2017-09-01 | 2017-09-01 | Silencer and maintenance method of the silencer |
| KR10-2017-0111867 | 2017-09-01 | ||
| PCT/KR2017/010449 WO2018056739A1 (en) | 2016-09-23 | 2017-09-22 | Silencer and method for maintaining and repairing silencer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109790768A true CN109790768A (en) | 2019-05-21 |
| CN109790768B CN109790768B (en) | 2022-01-25 |
Family
ID=61690913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780058604.3A Active CN109790768B (en) | 2016-09-23 | 2017-09-22 | Silencer and maintenance method thereof |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6925415B2 (en) |
| CN (1) | CN109790768B (en) |
| WO (1) | WO2018056739A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108661752B (en) * | 2018-06-19 | 2023-05-30 | 爱驰威汽车零部件（盐城）有限公司 | Novel embedded multi-plate muffler special for automobile based on noise reduction technology |
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| JPS63186907A (en) * | 1987-01-29 | 1988-08-02 | Toru Morimoto | Muffler |
| JP2003139000A (en) * | 2001-10-29 | 2003-05-14 | Naotaka Ogawa | Muffling device |
| CN102588166A (en) * | 2011-01-13 | 2012-07-18 | Ls美创有限公司 | Resonator |
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| KR101537120B1 (en) * | 2010-08-17 | 2015-07-16 | 현대중공업 주식회사 | Hybrid exhaust gas silencer |
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- 2017-09-22 WO PCT/KR2017/010449 patent/WO2018056739A1/en active Application Filing
- 2017-09-22 JP JP2019516220A patent/JP6925415B2/en active Active
- 2017-09-22 CN CN201780058604.3A patent/CN109790768B/en active Active
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| JPS63186907A (en) * | 1987-01-29 | 1988-08-02 | Toru Morimoto | Muffler |
| JP2003139000A (en) * | 2001-10-29 | 2003-05-14 | Naotaka Ogawa | Muffling device |
| US20120255808A1 (en) * | 2010-06-03 | 2012-10-11 | Integradigm Corporation | Muffler |
| CN102588166A (en) * | 2011-01-13 | 2012-07-18 | Ls美创有限公司 | Resonator |
| KR101301608B1 (en) * | 2012-05-18 | 2013-08-29 | 김영철 | Exhaust silencer |
| KR20150072610A (en) * | 2013-12-20 | 2015-06-30 | 한라비스테온공조 주식회사 | Muffler for air conditioner of vehicle |
| CN204511573U (en) * | 2014-11-05 | 2015-07-29 | 上海狮虎能源科技股份有限公司 | Resonance noise elimination device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2019534414A (en) | 2019-11-28 |
| JP6925415B2 (en) | 2021-08-25 |
| CN109790768B (en) | 2022-01-25 |
| WO2018056739A1 (en) | 2018-03-29 |
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