CN101189415B - Air intake silencer - Google Patents
Air intake silencer Download PDFInfo
- Publication number
- CN101189415B CN101189415B CN200680019767.2A CN200680019767A CN101189415B CN 101189415 B CN101189415 B CN 101189415B CN 200680019767 A CN200680019767 A CN 200680019767A CN 101189415 B CN101189415 B CN 101189415B
- Authority
- CN
- China
- Prior art keywords
- air inlet
- air
- chamber
- inlet silencer
- silencer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000003584 silencer Effects 0.000 title claims abstract description 46
- 239000000835 fiber Substances 0.000 claims abstract description 16
- 238000007599 discharging Methods 0.000 claims abstract description 6
- 238000001914 filtration Methods 0.000 claims description 17
- 238000009413 insulation Methods 0.000 claims description 17
- 238000004080 punching Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 229920000742 Cotton Polymers 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 description 6
- 230000004888 barrier function Effects 0.000 description 5
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000536 complexating effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
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- 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
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- 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
- F02M35/1205—Flow throttling or guiding
- F02M35/1211—Flow throttling or guiding by using inserts in the air intake flow path, e.g. baffles, throttles or orifices; Flow guides
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- 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
- F02M35/1205—Flow throttling or guiding
- F02M35/1227—Flow throttling or guiding by using multiple air intake flow paths, e.g. bypass, honeycomb or pipes opening into an expansion chamber
-
- 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
- F02M35/1272—Intake silencers ; Sound modulation, transmission or amplification using absorbing, damping, insulating or reflecting materials, e.g. porous foams, fibres, rubbers, fabrics, coatings or membranes
Abstract
An air intake silencer assembly (10) at the intake of an air handling system includes a plenum housing (20) having an inlet (23) end for receiving air and having an outlet port (24) for discharging air. Two baffle panels (28) in spaced relation in the housing define, with the housing, an inlet chamber (30) , a central chamber (32), and a discharge chamber (34) . A plurality of tubular (36) members is supported by the baffle panels (28) and each includes a perforated core (40) and a sound dissipating fiber wrapping (42) . Air flows into the inlet chamber, through the plurality of tubular members to the discharge chamber, and is discharged from the discharge chamber through the outlet port.
Description
The reference of other application
According to the 119th section of the 35th article of U. S. Patent code, the application requires to enjoy in the preference that the application number of submitting on June 6th, 2005 is 60/687739 temporary patent application, and this application at this as a reference.
Technical field
The present invention relates to a kind of air intake silencer, the noise when it is used to decay air inflow air treatment system is such as air compressor or blower.
Background technique
Air treatment system such as air compressor or blower, relates to from interface environments suction air.Air in the motion is when it arrives the inlet of air treatment system, because the interaction of air and static or moving object is influenced by pressure change.Variation in pressure in the air movement (manifest), like sound, with irritating or undesired sound extensively be defined as noise.Sound through air, other gas and around medium propagate with certain speed and arrive the recipient from wave source with the form of pressure wave.Most of sound of Air Compressor ingress are the results of the obstacle complexing action in air and its propagation path, and are made up of a plurality of frequencies.
The existing technology that trial is carried out noise attentuation in the air inlet of industrial air compressor comprises use acoustic lining pipe.Because the acoustical material in the pipe is easy to come off, this acoustic lining pipe typically is configured in the front of air intake filtration device.Thereby the air intake filtration device prevents the cast of any acoustical material and gets into compressor.A deficiency of this method is to make the distance between spacer tube and the air compressor elongated, thereby further increases the leakage of noise in connecting tube and flexible pipe place.Because noise leaks from the source, carry out noise suppression through effective and economic device and just become quite difficult.Other inhibition or prevent that the equipment that the noise ambient is further propagated from comprising barrier is such as self-erecting type wall and shielding construction.Barrier is characterised in that high-transmission loss and high absorption interface, and comparatively effective aspect attenuate high frequency shortwave noise.Generally speaking, the physical size of sound barriers should be 3 times of noise dominant frequency wavelength approximately at least.The noise relatively low for frequency, that wavelength is relatively long, the size of sound barriers and cost are just quite important.In the time need decaying largely, can use acoustical enclosures to the noise that leaks from air compressor inlet.Typical acoustical enclosures is made up of with the inner panel of high absorption relative high-transmission loss, and can directly be placed on the source of noise.Acoustical enclosures, its with the acoustics barrier mentioned because same reason, maybe be all higher on size and expense.Should be airtight also possibly cause hot reservation problem, make the design of acoustical enclosures complicated more, and make their cost increase because cooling system and specific ventilation system become essential to reduce the acoustical enclosures of internal noise to outside environmental radiation.
Summary of the invention
In one embodiment, the present invention provides a kind of improved, air inlet silencer of practicing thrift cost, and this device can be used as noise reduction device, and can place the downstream side of air intake filtration device immediately and can directly link to each other with the suction port of air treatment system.In addition, this silencer is to the minimum resistance of air through wherein, thus the capacity that provides necessary rated performance to adapt for the air treatment system in its downstream.Further, the material fixed-site of silencer, it can not receive shearing and the pressure effect of air stream and freely come off.
In one embodiment, be positioned at the air inlet silencer of air treatment system ingress, comprise the supercharging shell, it has the entry end of receiving filtration air; At least two insulation boards that are positioned at the relative isolation of shell, it limits inlet chamber, central lumen and discharge chamber with shell; A plurality of tubular parts, within its main centering chamber, each tubular part comprises by the stainless steel steel core of the end face of insulation board support, punching and is wound in the sound dissipation fiber on the core.Filtered air flow into the inlet chamber, and in experience reflection of inlet chamber and pressure balance, enters into the discharge chamber through a plurality of tubular parts from the chamber that enters the mouth, and is discharging reflection of chamber experience and pressure balance, and discharges from discharging chamber through the outlet of shell.
Other features and advantages of the present invention are conspicuous for the those skilled in the art who read and appraised following detailed description, claim and accompanying drawing.
Description of drawings
Fig. 1 is a specific embodiment of the air inlet silencer in the air compression system, and wherein, silencer is fixed in the downstream side of air intake filtration device and the upstream side of air compressor;
Fig. 2 is an embodiment's of air inlet silencer a perspective view;
Fig. 3 is an embodiment's of an air inlet silencer shown in Figure 2 sectional view;
Fig. 4 is the diagram figure of the removable device of air inlet silencer shown in Figure 2;
Fig. 5 (a) and (b) be the perspective view of the tubular part of the punching of being twined by fiber;
Fig. 6 is the diagram figure of insulation board.
Embodiment
Before any embodiment of the present invention is elaborated, it should be understood that the present invention is not limited to or the configuration of element that hereinafter figure given and detailed description that structure do described to hereinafter among the application.The present invention can be used for other embodiment, and can be used among the embodiment its application or that implement by different way.Can understand, for purpose of description, word that the application adopted and term should be as restrictions yet yet." comprise ", " comprising ", " having " and similarly change all expressions and comprise follow-up listed clauses and subclauses, and equal the clauses and subclauses of being added.The order that is limited in what claim to a method in office does not also mean that the step or the action that are proposed must carry out in order, only if certain order has been done in detail and clearly explanation.
Fig. 1 is a preferred disposition of air inlet silencer 10, and it is used for air treatment system, and for example air compression system 12.Especially air inlet silencer 10 is installed in the downstream side of air intake filtration device 14, and is installed in the upstream side of air compressor 18.Air is filtered when flowing into air intake filtration device 14; Through air inlet silencer 10,, get into air compressor 18 then to pipeline 16; Air is compressed the stage through one or more herein, is transferred to then in the compression type air manager system (not shown).
Referring to figs. 2 and 3, air inlet silencer 10 comprises a high pressure shell 20 at entry end 22 receiving filtration air.The flange 21 that is positioned at entry end 22 allows air inlet silencer 10 more easily to be installed on the air intake filtration device 14.Further, support 19 is used to install closet or the shell (not shown) of air inlet silencer 10 to air compression system 12, such as the shell of the ECU that is used for system 12.Air flows out to the outlet 24 of connecting tube 16 through air inlet silencer 10.In a preferred embodiment, the side 26 that outlet 24 is arranged in shell 20, rather than shell one side opposite with entry end 22.See following description, air inlet silencer 10 can place the downstream side of air intake filtration device 14, is because air inlet silencer 10 preferably includes the material that difficult drop-off also flows into the air treatment system that is positioned at the downstream side.
With reference to figure 3,4,6, especially in one embodiment, air inlet silencer 10 comprises two insulation boards that in shell 20, are isolated from each other 28, and itself and shell 20 define inlet chamber 30 and central lumen 32 and discharge chamber 34 together.Preferably, insulation board 28 parallel configuration in shell 20.In other embodiment, it is contemplated that with additional insulation board to limit not only central lumen 32.The tubular part 36 that is used for the sound dissipation is supported so that each tubular part 36 is positioned at central lumen 32 basically by insulation board 28.Say that at length insulation board 28 comprises hole 29, through inserting or supported the end of this hole tubular part.Tubular part 36 forms sub-device 38 as shown in Figure 4 together with insulation board 28, and this sub-device can insert or from shell 20, remove easily.
Shown in Fig. 5 (a)-(b), each tubular part 36 comprises the core 40 of punching, and sound dissipation fiber 42 twines around core 40.Tubular part in one embodiment is a water filtration device, such as the equipment from Johnson filtering product company.The core 40 of punching is stainless.Further, in one embodiment, the area of core outer surface punching be approximately the on all four core that do not punch the outer surface area 30%.Core can be made up of other material, for example thin wire gaze.Further, in one embodiment, fiber is a cotton thread, although in other embodiment, fiber possibly be one or more other fibers, such as glass fibre, nylon or polyester.Preferably, sound dissipation fiber can not come off, and can not flow into the compression system 12 in downstream side.
In exemplary embodiment, inlet chamber 30 is used as the reaction equation pumping chamber with discharge chamber 34.Air after air intake filtration device 14 filters flows into entrance cavity chamber 30.Air experience reflection in the inlet chamber, thus the variation in pressure in this inlet chamber obtains balance to a certain extent.Then, air, enters into and discharges chamber 34 through a plurality of tubular parts 36 each from entering the mouth chamber 30.Sound in central lumen 32 is owing to the effect that receives fiber 42 sound wave dissipative effects obtains decay.Discharge the air experience reflection in the chamber, so that the variation in pressure in this discharge chamber obtains balance to a certain extent.Air is discharged through outlet 24 from discharging in the chamber 34.
In other embodiments, inlet chamber 30 and/or discharge chamber 34 also can in be lined with absorption (dissipation) material so that sound also can dissipate in these chambers.
Different characteristic of the present invention and advantage have been suggested in following claim.
Claims (20)
1. air inlet silencer that places the air treatment system ingress comprises:
One supercharging shell, it has the entry end of admission of air and the outlet end of exhausting air;
At least two insulation boards of in shell, isolating relatively, it defines inlet chamber, central lumen and discharge chamber with this shell;
A plurality of tubular parts; It is supported by insulation board; The core that in said a plurality of tubular part each comprises punching be wound in the sound dissipation fiber on the core, the part that the size of this sound dissipation fiber occupies said central lumen is less than 100%, wherein this sound dissipation fiber defines each the outmost surface in said a plurality of tubular part; Wherein
Air flows into the entrance cavity chamber, discharges chamber through each entering in said a plurality of tubular parts simultaneously, and discharges from discharging chamber through outlet.
2. air inlet silencer as claimed in claim 1, wherein, core is stainless.
3. air inlet silencer as claimed in claim 1, wherein, it is cotton twining fiber.
4. air inlet silencer as claimed in claim 1, wherein, tubular part is a water filtration device.
5. air inlet silencer as claimed in claim 1, wherein, shell generally is a box-shaped.
6. air inlet silencer as claimed in claim 1, wherein, insulation board is same.
7. air inlet silencer as claimed in claim 1, wherein, insulation board and tubular part comprise removable sub-device.
8. air inlet silencer as claimed in claim 1, wherein, the perforated area on the core outer surface be approximately not punching same core outer surface 30%.
9. air inlet silencer as claimed in claim 1 further is included in the abducent flange of entry end, and wherein, flange is used for making said air inlet silencer to be fixed on the air intake filtration device.
10. air inlet silencer as claimed in claim 9, wherein, a pipeline connects outlet and air treatment system.
11. air inlet silencer as claimed in claim 1, wherein, tubular part all is parallel substantially.
12. an air inlet silencer that places the air treatment system ingress, the air inlet silencer comprises;
One supercharging shell, it has the entry end of reception through filtered air;
At least two insulation boards of in shell, isolating relatively, it limits inlet chamber, central lumen and discharge chamber with this shell; With
A plurality of tubular parts; It is haply within the centering chamber; Each tubular part comprises by the stainless steel steel core of the end face of insulation board support, punching and is wound in the sound dissipation fiber on the core that the sound dissipation fiber that is wound on the core that tubulose constitutes has roughly the same thickness, with the shape of the said tubular part of correspondence; Wherein this sound dissipation fiber defines each the outmost surface in said a plurality of tubular part
Wherein, Air through filtering flow into the inlet chamber; And in experience reflection of inlet chamber and pressure balance; Enter into the discharge chamber through each chamber that enters the mouth certainly in said a plurality of tubular parts simultaneously, and discharging reflection of chamber experience and pressure balance, and discharge the chamber discharge certainly through the outlet of shell.
13. air inlet silencer as claimed in claim 12, wherein, tubular part is a water filtration device.
14. air inlet silencer as claimed in claim 12, wherein, shell is box-shaped substantially.
15. air inlet silencer as claimed in claim 12 wherein, has two same insulation boards.
16. air inlet silencer as claimed in claim 12, wherein, insulation board and tubular part comprise removable sub-device.
17. air inlet silencer as claimed in claim 12, wherein, the perforated area on the core outer surface be approximately not punching same core outer surface 30%.
18. air inlet silencer as claimed in claim 12 further is included in the distolateral abducent flange with inlet, wherein, flange is used for making said air inlet silencer to be fixed on the air intake filtration device.
19. air inlet silencer as claimed in claim 18, wherein, a pipe connects outlet and air compressor.
20. air inlet silencer as claimed in claim 12, wherein, tubular part all is parallel substantially.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US68773905P | 2005-06-06 | 2005-06-06 | |
| US60/687,739 | 2005-06-06 | ||
| PCT/US2006/021711 WO2006133078A1 (en) | 2005-06-06 | 2006-06-05 | Air intake silencer assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101189415A CN101189415A (en) | 2008-05-28 |
| CN101189415B true CN101189415B (en) | 2012-06-13 |
Family
ID=37081628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200680019767.2A Expired - Fee Related CN101189415B (en) | 2005-06-06 | 2006-06-05 | Air intake silencer |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20060272888A1 (en) |
| EP (1) | EP1888884A1 (en) |
| CN (1) | CN101189415B (en) |
| WO (1) | WO2006133078A1 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080236938A1 (en) * | 2007-03-30 | 2008-10-02 | Siemens Vdo Automotive, Inc. | Induction system duct with noise attenuating holes |
| US9657732B2 (en) | 2010-09-23 | 2017-05-23 | Ingersoll-Rand Company | Modular discharge silencer for vehicle-mounted compressor |
| US8066096B1 (en) * | 2010-11-04 | 2011-11-29 | Hamilton Sundstrand Corporation | Inlet silencer |
| US8770340B2 (en) | 2011-11-16 | 2014-07-08 | Huntair, Inc. | Sound-absorptive panel for an air handling system |
| CN104169562B (en) * | 2012-02-20 | 2017-02-22 | 三菱重工业株式会社 | Pressurized machine silencing apparatus |
| CN102635447A (en) * | 2012-04-11 | 2012-08-15 | 金华航宇汽配制造有限公司 | Noise-reducing device of silencer |
| US10774845B2 (en) | 2014-06-02 | 2020-09-15 | Carrier Corporation | Acoustic treatment for an indoor HVAC component |
| US10508573B2 (en) | 2017-04-11 | 2019-12-17 | Caterpillar Inc. | Baffle assembly for a duct |
| CA3070418A1 (en) | 2017-07-18 | 2019-01-24 | Environmental Management Confederation, Inc. | Angled adsorbent filter media design in tangential flow applications |
| US11255303B2 (en) | 2019-01-21 | 2022-02-22 | Toledo Molding & Die, Llc | Inline high frequency fiber silencer |
| TWI727808B (en) * | 2020-05-22 | 2021-05-11 | 林鈺文 | Noise reduction device of air compressor |
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- 2006-06-05 CN CN200680019767.2A patent/CN101189415B/en not_active Expired - Fee Related
- 2006-06-05 US US11/422,248 patent/US20060272888A1/en not_active Abandoned
- 2006-06-05 EP EP06772131A patent/EP1888884A1/en not_active Withdrawn
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE736944C (en) * | 1939-03-08 | 1943-07-02 | Goehler & Co | Silencer with several chambers connected to one another by pipes |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2006133078A1 (en) | 2006-12-14 |
| EP1888884A1 (en) | 2008-02-20 |
| US20060272888A1 (en) | 2006-12-07 |
| CN101189415A (en) | 2008-05-28 |
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