US20060272888A1 - Air intake silencer assembly - Google Patents
Air intake silencer assembly Download PDFInfo
- Publication number
- US20060272888A1 US20060272888A1 US11/422,248 US42224806A US2006272888A1 US 20060272888 A1 US20060272888 A1 US 20060272888A1 US 42224806 A US42224806 A US 42224806A US 2006272888 A1 US2006272888 A1 US 2006272888A1
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- US
- United States
- Prior art keywords
- air intake
- silencer assembly
- air
- intake silencer
- housing
- 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.)
- Abandoned
Links
- 230000003584 silencer Effects 0.000 title claims abstract description 42
- 239000000835 fiber Substances 0.000 claims abstract description 12
- 238000007599 discharging Methods 0.000 claims abstract 2
- 238000001914 filtration Methods 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 229920000742 Cotton Polymers 0.000 claims description 2
- 230000004888 barrier function Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 239000012814 acoustic material Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000013022 venting 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
-
- 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
Definitions
- the present invention relates to an air intake silencer assembly for attenuating noise of air flowing into an air handling system, such as an air compressor or blower.
- Air handling systems such as air compressors or blowers, involve the intake of air from an interfacing environment.
- the moving air as it reaches the intake of the air handling system, is subject to pressure variations due to the interaction of the air with stationary and moving objects.
- These pressure variations in the air manifest as sound, with annoying or unwanted sound broadly defined as noise. Sound propagates through air, other gases and surrounding media at a certain velocity and in the form of pressure waves from a source to a receiver.
- Most sound at the air intake of an air compressor is the result of complex interactions between the air and obstacles in its path, and is composed of a number of frequencies.
- Prior art attempts at noise attenuation at the intake of industrial air compressors have included the use of an acoustically lined duct. Due to the tendency of the acoustic material in the duct to break off, such an acoustically lined duct has typically been located before an air intake filter. The air intake filter thus prevents any broken off portions of this material from reaching the compressor.
- One shortcoming in this approach is the significant resultant distance between the lined duct and the air compressor, which promotes the escaping of noise through the connecting pipes and hoses. As the noise escapes from its source, its suppressions become significantly more difficult to accomplish by effective and economical means.
- Other means to suppress or prevent the further propagation of the noise into the surrounding environment include barriers such as free-standing walls and enclosing structures.
- Barriers are characterized by high transmission loss and highly absorptive surfaces, and they are effective in reducing high frequency short wavelength noise.
- the physical size of sound barriers should be approximately at least three times larger than the wavelength of the frequency of the major noise contributors. In the case of relatively low frequency and long wavelength noise components, sound barriers could thus be significant in size and cost.
- an acoustical enclosure can be used.
- acoustical enclosures are constructed with relatively high transmission loss and absorptive internal panels and can be placed directly over the source of the noise. Acoustical enclosures, for the same reasons mentioned with respect to acoustical barriers, may also be large in size and expensive. Acoustical enclosures, which should be air tight to reduce the amount of the internal noise radiating to the outside, may also cause heat retention issues which further complicate their design and increase their cost because of the necessity for cooling and special venting systems.
- the invention provides an improved and cost effective air intake silencer assembly which acts as a noise attenuating device and which can be positioned immediately downstream of an air intake filter and directly connected to the intake of an air handling system. Additionally, the silencer assembly provides minimal resistance to the air flow passing therethrough thus providing the downstream air handling system the appropriate capacity necessary for its rated performance. Further, the material in the silencer assembly remains in position and does not break free under the pressure and shearing actions of the air flow.
- an air intake silencer assembly at the intake of an air handling system includes a plenum housing including an inlet end for receiving filtered air, at least two baffle panels in spaced relation in the housing and with the housing defining an inlet chamber, a central chamber, and a discharge chamber, and a plurality of tubular members substantially located within the central chamber.
- Each tubular member includes ends supported by the baffle panels and includes a perforated core and a sound dissipating fiber wrapping. Filtered air flows into the inlet chamber, undergoes reflection and pressure equalizing in the inlet chamber, flows from the inlet chamber through the plurality of tubular members to the discharge chamber, undergoes reflections and pressure equalizing in the discharge chamber, and is discharged from the discharge chamber through an outlet port of the housing.
- FIG. 1 is one embodiment of an air intake silencer assembly in an air compression system wherein the silencer assembly is mounted downstream of an air intake filter and upstream of an air compressor;
- FIG. 2 is a perspective view of one embodiment of an air intake silencer assembly
- FIG. 3 is a cross sectional view of the air intake silencer assembly of FIG. 2 ;
- FIG. 4 illustrates a removable assembly of the air intake silencer assembly of FIG. 2 ;
- FIGS. 5 ( a ) and ( b ) are perspective views of a perforated tubular member wrapped with fiber.
- FIG. 6 illustrates a baffle panel
- FIG. 1 illustrates a preferred placement of an air intake silencer assembly 10 in an air handling system, such as an air compression system 12 .
- the air intake silencer assembly 10 is mounted downstream of an air intake filter 14 and upstream of an air compressor 18 . Air flows into the air intake filter 14 where it is filtered, through the air intake silencer assembly 10 , to a pipe 16 , and then to the air compressor 18 , where the air is compressed in one or more stages and then delivered to a compressed air utilization system (not shown).
- the air intake silencer assembly 10 includes a plenum housing 20 receiving filtered air at an inlet end 22 .
- a flange 21 at end 22 allows easy mounting of the silencer assembly 10 to the air intake filter 14 .
- brackets 19 can be used to mount the assembly 10 to a cabinet or housing (not shown) of the air compression system 12 , such as a housing for electronic control components of the system 12 .
- the air flows through the silencer assembly 10 to an outlet port 24 that is connectable to pipe 16 .
- the outlet port 24 is located on a side 26 of the housing 20 rather than an end of the housing opposite end 22 .
- the air intake silencer assembly 10 can be placed downstream of the air intake filter 14 because, as described below, the air intake silencer assembly 10 preferably includes material that doesn't break off and flow into the downstream air handling system.
- the air intake silencer assembly 10 includes two baffle panels 28 spaced apart from each other in the housing 20 to define, with the housing 20 , an inlet chamber 30 , a central chamber 32 , and a discharge chamber 34 .
- the baffle panels 28 are arranged parallel to each other in the housing 20 .
- additional baffle panels be used to define more than a single central chamber.
- Tubular members 36 for dissipating sound are supported by the baffle panels 28 such that each tubular member 36 is substantially located within the central chamber 32 .
- the baffle panels 28 include apertures 29 through which the ends of the tubular members can be inserted and supported.
- the tubular members 36 together with the baffle panels 28 , form a subassembly 38 as shown in FIG. 4 , which is easily insertable in and removable from the housing 20 .
- each tubular member 36 includes a perforated core 40 with sound dissipating fiber 42 wrapped around the core 40 .
- the tubular member in one embodiment is a water filtration device, such as available from Johnson Filtration Products, Inc.
- the perforated core 40 can be stainless steel.
- the area of the perforations on the outer surface of the core is approximately 30 % of the outer surface of an identical core without perforations.
- the core can be made of other materials such as a fine wire mesh.
- the fiber is cotton string, although in other embodiments, the fiber can be one or more other fibers such as fiberglass yarn, nylon or polyester.
- the sound dissipating fiber will not break off and will not flow into the downstream compression system 12 .
- the inlet chamber 30 and the discharge chamber 34 act as reactive plenums. Filtered air flows from the air intake filter 14 to the inlet chamber 30 . Air in the inlet chamber 30 undergoes reflections such that pressure variations are somewhat equalized in this inlet chamber. Air then flows from the inlet chamber 30 through each of the plurality of tubular members 36 to the discharge chamber 34 . Sound in the central chamber 32 is attenuated due to the sound dissipating effects of the fiber 42 . Air in the discharge chamber 34 undergoes reflections such that pressure variations are somewhat equalized in the discharge chamber. Air is discharged from the discharge chamber 34 through the outlet port 24 .
- the inlet chamber 30 and/or the discharge chamber 34 can also be lined with absorptive (dissipating) material such that sound is also dissipated in these chambers.
Abstract
An air intake silencer assembly at the intake of an air handling system includes a plenum housing having an inlet end for receiving air and having an outlet port for discharging air. Two baffle panels in spaced relation in the housing define, with the housing, an inlet chamber, a central chamber, and a discharge chamber. A plurality of tubular members is supported by the baffle panels and each includes a perforated core and a sound dissipating fiber wrapping. 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
- This application claims priority under 35 U.S.C. sec. 119 to provisional patent application No. 60/687739, filed on Jun. 6, 2005, which is hereby incorporated by reference.
- The present invention relates to an air intake silencer assembly for attenuating noise of air flowing into an air handling system, such as an air compressor or blower.
- Air handling systems, such as air compressors or blowers, involve the intake of air from an interfacing environment. The moving air, as it reaches the intake of the air handling system, is subject to pressure variations due to the interaction of the air with stationary and moving objects. These pressure variations in the air manifest as sound, with annoying or unwanted sound broadly defined as noise. Sound propagates through air, other gases and surrounding media at a certain velocity and in the form of pressure waves from a source to a receiver. Most sound at the air intake of an air compressor is the result of complex interactions between the air and obstacles in its path, and is composed of a number of frequencies.
- Prior art attempts at noise attenuation at the intake of industrial air compressors have included the use of an acoustically lined duct. Due to the tendency of the acoustic material in the duct to break off, such an acoustically lined duct has typically been located before an air intake filter. The air intake filter thus prevents any broken off portions of this material from reaching the compressor. One shortcoming in this approach is the significant resultant distance between the lined duct and the air compressor, which promotes the escaping of noise through the connecting pipes and hoses. As the noise escapes from its source, its suppressions become significantly more difficult to accomplish by effective and economical means. Other means to suppress or prevent the further propagation of the noise into the surrounding environment include barriers such as free-standing walls and enclosing structures. Barriers are characterized by high transmission loss and highly absorptive surfaces, and they are effective in reducing high frequency short wavelength noise. In general, the physical size of sound barriers should be approximately at least three times larger than the wavelength of the frequency of the major noise contributors. In the case of relatively low frequency and long wavelength noise components, sound barriers could thus be significant in size and cost. When a significant reduction of the noise escaping from the intake of an air compressor is required, then an acoustical enclosure can be used. Typically, acoustical enclosures are constructed with relatively high transmission loss and absorptive internal panels and can be placed directly over the source of the noise. Acoustical enclosures, for the same reasons mentioned with respect to acoustical barriers, may also be large in size and expensive. Acoustical enclosures, which should be air tight to reduce the amount of the internal noise radiating to the outside, may also cause heat retention issues which further complicate their design and increase their cost because of the necessity for cooling and special venting systems.
- In one embodiment, the invention provides an improved and cost effective air intake silencer assembly which acts as a noise attenuating device and which can be positioned immediately downstream of an air intake filter and directly connected to the intake of an air handling system. Additionally, the silencer assembly provides minimal resistance to the air flow passing therethrough thus providing the downstream air handling system the appropriate capacity necessary for its rated performance. Further, the material in the silencer assembly remains in position and does not break free under the pressure and shearing actions of the air flow.
- One embodiment of an air intake silencer assembly at the intake of an air handling system includes a plenum housing including an inlet end for receiving filtered air, at least two baffle panels in spaced relation in the housing and with the housing defining an inlet chamber, a central chamber, and a discharge chamber, and a plurality of tubular members substantially located within the central chamber. Each tubular member includes ends supported by the baffle panels and includes a perforated core and a sound dissipating fiber wrapping. Filtered air flows into the inlet chamber, undergoes reflection and pressure equalizing in the inlet chamber, flows from the inlet chamber through the plurality of tubular members to the discharge chamber, undergoes reflections and pressure equalizing in the discharge chamber, and is discharged from the discharge chamber through an outlet port of the housing.
- Other features and advantages of the invention will become apparent to those skilled in the art upon review of the following detailed description, claims, and drawings.
-
FIG. 1 is one embodiment of an air intake silencer assembly in an air compression system wherein the silencer assembly is mounted downstream of an air intake filter and upstream of an air compressor; -
FIG. 2 is a perspective view of one embodiment of an air intake silencer assembly; -
FIG. 3 is a cross sectional view of the air intake silencer assembly ofFIG. 2 ; -
FIG. 4 illustrates a removable assembly of the air intake silencer assembly ofFIG. 2 ; - FIGS. 5(a) and (b) are perspective views of a perforated tubular member wrapped with fiber; and
-
FIG. 6 illustrates a baffle panel. - Before any embodiments of the invention are explained in detail, it is to be understood that the invention is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the following drawings. The invention is capable of other embodiments and of being practiced or of being carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. The use of “including,” “comprising” or “having” and variations thereof herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items. The order of limitations specified in any method claims does not imply that the steps or acts set forth therein must be performed in that order, unless an order is explicitly set forth in the specification.
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FIG. 1 illustrates a preferred placement of an airintake silencer assembly 10 in an air handling system, such as anair compression system 12. In particular, the airintake silencer assembly 10 is mounted downstream of anair intake filter 14 and upstream of anair compressor 18. Air flows into theair intake filter 14 where it is filtered, through the airintake silencer assembly 10, to apipe 16, and then to theair compressor 18, where the air is compressed in one or more stages and then delivered to a compressed air utilization system (not shown). - With reference to
FIGS. 2 and 3 , the airintake silencer assembly 10 includes aplenum housing 20 receiving filtered air at aninlet end 22. Aflange 21 atend 22 allows easy mounting of thesilencer assembly 10 to theair intake filter 14. Further,brackets 19 can be used to mount theassembly 10 to a cabinet or housing (not shown) of theair compression system 12, such as a housing for electronic control components of thesystem 12. The air flows through thesilencer assembly 10 to anoutlet port 24 that is connectable to pipe 16. In a preferred embodiment, theoutlet port 24 is located on aside 26 of thehousing 20 rather than an end of the housing oppositeend 22. The airintake silencer assembly 10 can be placed downstream of theair intake filter 14 because, as described below, the airintake silencer assembly 10 preferably includes material that doesn't break off and flow into the downstream air handling system. - In particular, with reference to
FIGS. 3, 4 , and 6, in one embodiment, the airintake silencer assembly 10 includes twobaffle panels 28 spaced apart from each other in thehousing 20 to define, with thehousing 20, aninlet chamber 30, acentral chamber 32, and adischarge chamber 34. Preferably, thebaffle panels 28 are arranged parallel to each other in thehousing 20. In other embodiments, it is contemplated that additional baffle panels be used to define more than a single central chamber.Tubular members 36 for dissipating sound are supported by thebaffle panels 28 such that eachtubular member 36 is substantially located within thecentral chamber 32. Specifically, thebaffle panels 28 includeapertures 29 through which the ends of the tubular members can be inserted and supported. Thetubular members 36, together with thebaffle panels 28, form asubassembly 38 as shown inFIG. 4 , which is easily insertable in and removable from thehousing 20. - As shown in FIGS. 5(a)-(b), each
tubular member 36 includes aperforated core 40 withsound dissipating fiber 42 wrapped around thecore 40. The tubular member in one embodiment is a water filtration device, such as available from Johnson Filtration Products, Inc. Theperforated core 40 can be stainless steel. Further, in one embodiment, the area of the perforations on the outer surface of the core is approximately 30% of the outer surface of an identical core without perforations. The core can be made of other materials such as a fine wire mesh. Further, in one embodiment, the fiber is cotton string, although in other embodiments, the fiber can be one or more other fibers such as fiberglass yarn, nylon or polyester. Preferably, the sound dissipating fiber will not break off and will not flow into thedownstream compression system 12. - In the illustrated embodiment, the
inlet chamber 30 and thedischarge chamber 34 act as reactive plenums. Filtered air flows from theair intake filter 14 to theinlet chamber 30. Air in theinlet chamber 30 undergoes reflections such that pressure variations are somewhat equalized in this inlet chamber. Air then flows from theinlet chamber 30 through each of the plurality oftubular members 36 to thedischarge chamber 34. Sound in thecentral chamber 32 is attenuated due to the sound dissipating effects of thefiber 42. Air in thedischarge chamber 34 undergoes reflections such that pressure variations are somewhat equalized in the discharge chamber. Air is discharged from thedischarge chamber 34 through theoutlet port 24. - In other embodiments, the
inlet chamber 30 and/or thedischarge chamber 34 can also be lined with absorptive (dissipating) material such that sound is also dissipated in these chambers. - Various features and advantages of the invention are set forth in the following claims.
Claims (20)
1. An air intake silencer assembly at the intake of an air handling system comprising,
a plenum housing having an inlet end for receiving air and having an outlet port for discharging air,
at least two baffle panels in spaced relation in the housing and defining, with the housing, an inlet chamber, a central chamber, and a discharge chamber,
a plurality of tubular members supported by the baffle panels and each including a perforated core and a sound dissipating fiber wrapping, and
wherein 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.
2. The air intake silencer assembly of claim 1 , wherein the core is stainless steel.
3. The air intake silencer assembly of claim 1 , wherein the fiber wrapping is cotton.
4. The air intake silencer assembly of claim 1 , wherein the tubular member is a water filtration device.
5. The air intake silencer assembly of claim 1 , wherein the housing is generally box shaped.
6. The air intake silencer assembly of claim 1 , wherein the baffle panels are identical.
7. The air intake silencer assembly of claim 1 , wherein the baffle panels and the tubular members comprise a removable subassembly.
8. The air intake silencer assembly of claim 1 , wherein the area of the perforations on the outer surface of the core is approximately 30% of the outer surface of an identical core without perforations.
9. The air intake silencer assembly of claim 1 , further including an outwardly extending flange at the inlet end, wherein the flange is used to secure the device to an air intake filter.
10. The air intake silencer assembly of claim 9 , wherein a pipe connects the outlet port and an air handling system.
11. The air intake silencer assembly of claim 1 , wherein the tubular members are all generally parallel to each other.
12. An air intake silencer assembly at the intake of an air handling system, the air intake silencer assembly comprising,
a plenum housing including an inlet end for receiving filtered air,
at least two baffle panels in spaced relation in the housing and with the housing defining an inlet chamber, a central chamber, and a discharge chamber, and
a plurality of tubular members substantially located within the central chamber, each tubular member including ends supported by the baffle panels and including a perforated stainless steel core and a sound dissipating fiber wrapping,
wherein the filtered air flows into the inlet chamber, undergoes reflection and pressure equalizing in the inlet chamber, flows from the inlet chamber through the plurality of tubular members to the discharge chamber, undergoes reflections and pressure equalizing in the discharge chamber, and is discharged from the discharge chamber through an outlet port of the housing.
13. The air intake silencer assembly of claim 12 , wherein the tubular member is a water filtration device.
14. The air intake silencer assembly of claim 12 , wherein the housing is generally box shaped.
15. The air intake silencer assembly of claim 12 , wherein there are two identical baffle panels.
16. The air intake silencer assembly of claim 12 , wherein the baffle panels and the tubular members comprise a removable subassembly.
17. The air intake silencer assembly of claim 12 , wherein the area of the perforations on the outer surface of the core is approximately 30% of the outer surface of an identical core without perforations.
18. The air intake silencer assembly of claim 12 , further including an outwardly extending flange at the end with the inlet port, wherein the flange is used to secure the device to an air intake filter.
19. The air intake silencer assembly of claim 18 , wherein a pipe connects the outlet port and an air compressor.
20. The air intake silencer assembly of claim 12 , wherein the tubular members are all generally parallel to each other.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US11/422,248 US20060272888A1 (en) | 2005-06-06 | 2006-06-05 | Air intake silencer assembly |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US68773905P | 2005-06-06 | 2005-06-06 | |
US11/422,248 US20060272888A1 (en) | 2005-06-06 | 2006-06-05 | Air intake silencer assembly |
Publications (1)
Publication Number | Publication Date |
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US20060272888A1 true US20060272888A1 (en) | 2006-12-07 |
Family
ID=37081628
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/422,248 Abandoned US20060272888A1 (en) | 2005-06-06 | 2006-06-05 | Air intake silencer assembly |
Country Status (4)
Country | Link |
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US (1) | US20060272888A1 (en) |
EP (1) | EP1888884A1 (en) |
CN (1) | CN101189415B (en) |
WO (1) | WO2006133078A1 (en) |
Cited By (7)
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US20080236938A1 (en) * | 2007-03-30 | 2008-10-02 | Siemens Vdo Automotive, Inc. | Induction system duct with noise attenuating holes |
US8066096B1 (en) * | 2010-11-04 | 2011-11-29 | Hamilton Sundstrand Corporation | Inlet silencer |
WO2012039715A1 (en) * | 2010-09-23 | 2012-03-29 | Ingersoll-Rand Company | Modular discharge silencer for vehicle-mounted compressor |
US8770340B2 (en) | 2011-11-16 | 2014-07-08 | Huntair, Inc. | Sound-absorptive panel for an air handling system |
US10508573B2 (en) | 2017-04-11 | 2019-12-17 | Caterpillar Inc. | Baffle assembly for a duct |
US11255303B2 (en) | 2019-01-21 | 2022-02-22 | Toledo Molding & Die, Llc | Inline high frequency fiber silencer |
US11524257B2 (en) | 2017-07-18 | 2022-12-13 | Environmental Management Confederation, Inc. | Angled adsorbent filter media design in tangential flow applications |
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KR101515769B1 (en) * | 2012-02-20 | 2015-04-28 | 미츠비시 쥬고교 가부시키가이샤 | Silencer for supercharger |
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 |
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 WO PCT/US2006/021711 patent/WO2006133078A1/en active Application Filing
- 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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Cited By (8)
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US20080236938A1 (en) * | 2007-03-30 | 2008-10-02 | Siemens Vdo Automotive, Inc. | Induction system duct with noise attenuating holes |
WO2012039715A1 (en) * | 2010-09-23 | 2012-03-29 | Ingersoll-Rand Company | Modular discharge silencer for vehicle-mounted compressor |
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 |
US10508573B2 (en) | 2017-04-11 | 2019-12-17 | Caterpillar Inc. | Baffle assembly for a duct |
US11524257B2 (en) | 2017-07-18 | 2022-12-13 | 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 |
Also Published As
Publication number | Publication date |
---|---|
CN101189415A (en) | 2008-05-28 |
EP1888884A1 (en) | 2008-02-20 |
CN101189415B (en) | 2012-06-13 |
WO2006133078A1 (en) | 2006-12-14 |
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