US3894610A - Gas stream silencer - Google Patents

Gas stream silencer Download PDF

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Publication number
US3894610A
US3894610A US498984A US49898474A US3894610A US 3894610 A US3894610 A US 3894610A US 498984 A US498984 A US 498984A US 49898474 A US49898474 A US 49898474A US 3894610 A US3894610 A US 3894610A
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US
United States
Prior art keywords
silencer
shell means
accordance
gas stream
layer
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 - Lifetime
Application number
US498984A
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English (en)
Inventor
Edmund John Halter
John Charles Lanpher
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Burgess Manning Inc
Original Assignee
Burgess Industries Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Burgess Industries Inc filed Critical Burgess Industries Inc
Priority to US498984A priority Critical patent/US3894610A/en
Priority to ES435717A priority patent/ES435717A1/es
Priority to CA222,353A priority patent/CA1026239A/en
Priority to GB1126675A priority patent/GB1466512A/en
Priority to FR7512033A priority patent/FR2282533A1/fr
Priority to NO751949A priority patent/NO751949L/no
Priority to DK247275AA priority patent/DK140181B/da
Priority to SE7507131A priority patent/SE7507131L/xx
Priority to JP50077067A priority patent/JPS51128501A/ja
Application granted granted Critical
Publication of US3894610A publication Critical patent/US3894610A/en
Priority to DE2534556A priority patent/DE2534556B2/de
Assigned to NITRAM-TEXAS, INC. reassignment NITRAM-TEXAS, INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: BURGESS INDUSTRIES INCORPORATED
Assigned to BURGESS-MANNING, INC. reassignment BURGESS-MANNING, INC. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). EFFECTIVE JULY 23, 1984 Assignors: NITRAM-TEXAS, INC.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
    • F01N13/1844—Mechanical joints
    • F01N13/1855—Mechanical joints the connection being realised by using bolts, screws, rivets or the like
    • 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
    • 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
    • F01N13/009—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 having two or more separate purifying devices arranged in series
    • F01N13/0097—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 having two or more separate purifying devices arranged in series the purifying devices are arranged in a single housing
    • 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
    • F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
    • F01N13/1811—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration
    • 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
    • F01N13/1888—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells
    • F01N13/1894—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells the parts being assembled in longitudinal direction
    • 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
    • F01N2310/00—Selection of sound absorbing or insulating material
    • F01N2310/02—Mineral wool, e.g. glass wool, rock wool, asbestos or the like
    • 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
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/24—Methods or apparatus for fitting, inserting or repairing different elements by bolts, screws, rivets or the like
    • 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
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/02—Tubes being perforated
    • 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
    • F01N2490/00—Structure, disposition or shape of gas-chambers
    • F01N2490/02—Two or more expansion chambers in series connected by means of tubes

Definitions

  • Vandenburgh ABSTRACT Noise and noise potential in a gas stream are con' trolled by series step treatment, each step accomplishing diffusion and smoothing of the flow with overall absorption of sound.
  • the first stage provides a sturdy shock absorbing cushion to receive and mitigate rough blast while subsequent stages successively moderate and smooth the flow of the gas stream and absorb sound energy. Design criteria maximize diffusion and sound absorption while avoiding the creation of secondary noises within the unit.
  • the object of the present invention is to provide a silencer for controlling the noise. existing or potential, of a gas stream and which is capable of absorbing noise created upstream and smoothing disordered flow to avoid the creation of noise downstream while avoiding the creation of secondary noise within the silencer, it self.
  • the device is capable of handling streams having a wide range of pressure and velocity flow characteristics, including surges of blast proportions.
  • a further object is to provide such a silencer which has a long and dependable useful life. Another object is to provide such a plural stage silencer to which an additional stage or stages may be added to provide more complete silencing as noise pollution standards become more strict. Another object is to provide such a silencer which has a very high performance/size ratio.
  • FIG. 1 is a side view of a typical silencer of the invention.
  • FIG. 2 is a longitudinal view, in cross section, of the silencer of FIG. 1.
  • FIG. 3 is an enlarged detail view showing structure and indicating action in the shock absorbing section of the unit.
  • FIGS. 3A and 3B are detail views showing the perforation patterns of the inner shells and of the diffusers, respectively, full size.
  • FIGS. 4 and 5 are detail views in cross section showing alternative forms of vibration isolating connection of adjacent sections of the silencer, the structure of FIGS. 1 and 2 being that illustrated in FIG. 4.
  • FIG. 6 is an exploded view of an add-on unit.
  • FIG. 7 is a side view of a modified form of a silencer.
  • FIGS. 1-4 The silencer illustrated in FIGS. 1-4 is a two-section unit comprised of cylindrical shells I and 2, the inlet end being closed by head 3.
  • First stage diffuser tube 4 is welded to the head structure and a standard connecting flange 5 is welded to the exposed inlet end of the diffuser tube.
  • the cylindrical walls of the tube are perforated, the pattern being shown, full size, in FIG. 38.
  • a partition I0 having a central opening II and a peripheral flange 12 is mounted at the junction of the first and second stages of the silencer by means of the peripheral flange.
  • Elastomeric spacers I3 are sandwiched between flange I2 and flanges 8 and 9 before the joint is drawn up tight by bolts [4, the function of the elastomeric spacers being to prevent the transmission of vibration between the shells connected at the joint.
  • Inner cylindrical shells I5 and I6 are mounted by means of rings 17 in spaced relation to shells I and 2.
  • the inner shells are perforated, as shown. to provide access from the interior of the silencer to the material packed into the spaces between the inner shells and the silencer shells. The nature and function of these materials will be described hereinafter.
  • the perforation pattern of the inner shells is shown, full size. in FIG. 3A.
  • a second stage diffuser tube I8 is mounted in opening II of partition I0. This tube, like the first stage diffuser tube, is perforated, as shown.
  • a perforated inner head 19 is mounted in spaced relation to head 3 and the space thus provided is filled with sound absorbing material such as a pack of copper or steel fibers.
  • shell I of the first section of the silencer is double wrapped with a shell vibration dampening material such as lead or asbestos sheet 21.
  • a sheet metal covering is provided.
  • gas stream silencer of the invention may be connected in line;” that is, connected at its inlet end to receive gases from a conduit and connected, also, at its outlet end with a conduit, the device shown in the drawing is designed to terminate the gas flow conduit.
  • the inner and outer shells at the outlet end 22 of the silencer are open to the atmosphere.
  • the gas stream is directed into first stage diffuser tube 4. Since the downstream end of the tube is closed, the gases are forced to flow radially outwardly through the tube perforations. For the duration of each pulse, the gases are directed in a multiplicity of individual jets toward inner shell IS.
  • the space 23 surrounding the diffuser tube is filled with a durable type of material, such as metal turnings or copper scrubble, which provides a body having interconnecting voids. While serving to contribute to the absorption of sound vibrations in the gases from upstream sources, the principal function of this body is to receive and cushion the impact of the jet streams issuing from diffuser tube 4.
  • the space 24 which is downstream from the diffuser but still a part of the first, shock section of the silencer, is preferably filled with the durable type of sound absorbing material. Sound energy is absorbed by the material in spaces 23 and 24 and also by the sound absorbing material 20 which is also exposed to the space within the first stage of the silencer.
  • the accomplishment of the flow treatment in the first section of the silencer is a partial but substantial smoothing of the flow of the gases following exposure to the shock and sound absorbing bodies.
  • the second stage of the silencer is designed to further damp pulsations and absorb sound energy still existing in the stream of gases as it fiows from treatment in the first stage into the second stage diffuser tube I8. While treatment action in the second stage is similar in nature to that brought to bear in the first stage of the silencer, the emphasis is changed from mitigation of shock flow to sound absorption with continued smoothing of the flow to prepare the stream for emission to the atmosphere with minimum noise-creating impact. Sound energy is absorbed by a more efficient sound absorbing material than that contained in the first section, such as punched hairfelt or glass fiber. contained in the spaces 25. Noise having their sources upstream from the silencer and noise that may be created in the gas system within the silencer are absorbed to an acceptable level before reaching the outlet of the silencer.
  • the gas stream silencer must be designed, not only to absorb so far as possible noise energy reaching it from upstream sources and smooth the flow to avoid the creation of noise at or beyond the outlet of the silencer, but also to avoid the creation of noise within the silencer itself.
  • the inlet stream is divided into a multiplicity ofjets 26 (FIG. 3) and the shock absorbing material is .arranged somewhat beyond the jet cores as represented at 27 in the enlarged detail view of FIG. 3.
  • the preferred distance between inlet tube 4 and perforated inner shell is from four to times the diameter of the perforations in the diffuser tube.
  • the gases flow into the second stage diffuser tube 18 and radially therefrom through the perforations therein.
  • the perforations in the second stage diffuser tube are somewhat smaller and the tube somewhat longer as compared with the corresponding dimensions of the first stage diffuser. This results in smaller and more numerous jets.
  • the primary emphasis in the second treatment stage is acoustical; that is, the absorption of sound waves traveling in the gas stream.
  • the spaces are packed with an efficient sound absorbing material, such as hairfelt or glass fiber.
  • the exposed area of the sound absorbing material is extended well beyond the closed downstream end of the diffuser tube to provide continued absorption of sound energy as the stream consolidates for exit to the atmosphere at relatively low and steady velocity through the open downstream end of the silencer.
  • the silencer must necessarily be designed to handle a predetermined maximum flow of gases. While a valve in the upstream conduit leading to the silencer may be provided to limit the flow, secondary noises are likely to be generated downstream from the valve. This can be avoided by employing an orifice plate 6 at the inlet to the first stage diffuser tube.
  • the amount of open area provided by the totality of perforations in the diffuser tube is related to the size of orifice 7. In general, this area should be approximately three times the area of the orifice.
  • the total open area for flow through the perforations in the second tube may be approximately the same as that of the first tube for optimum results since the flow of the stream into the second diffuser tube is substantially smoother.
  • FIG. 5 An alternative form of vibration isolating joint is shown in FIG. 5.
  • the ends of shells la and 2a overlap and are fastened together with an elastomeric spacer 13a sandwiched between as a vibration barrier.
  • the invention contemplates the possible future addition of one or more gas stream treatment stages to the initially installed silencer which may comprise only two stages.
  • This concept is illustrated in FIG. 6 wherein the initial two-stage unit is provided with a connecting flange 28.
  • the silencer shown in FIG. 6 illustrates a further alternative feature of construction.
  • a sound absorbing body 33 contained between inner solid tube 34 and outer perforated tube 35 is provided as an extension of diffuser tube 32. Extended sound absorption is effected by passage of the stream through the annular passageway defined by the sound absorbing body surfaces.
  • the silencer of this invention is very flexible in its useful applications. While the taming of relatively violent flow is its forte, it is effective in pressure reduction applications, such as the quiet exhausting of steam under pressure to the atmosphere.
  • a plural stage gas stream silencer having circular shell means defining a plurality of treatment sections connected in series for the flow of a gas stream there through, each section having a central inlet opening therein and at least the side walls of the shell means having their internal surfaces covered with a layer of sound absorbing material held in position by perforated inner shell means; the improvement wherein a diffuser tube is mounted in each inlet opening and extends downstream therefrom into but not through the associated treatment section; each said tube being open at its upstream end, closed at its downstream end and having its side walls perforated; the distance from said perforated side walls to the perforated inner shell means surrounding the same being greater than four times the diameter of the perforations in said side walls; the sound absorbing material of the layer surrounding said diffuser in the treatment section at the inlet end of the silencer consisting of a durable material such as metal turnings; the layer of sound absorbing material of succeeding treatment sections comprising material having high sound absorption capability such as punched hairfelt or glass fiber.
  • joints connecting adjoining treatment sections comprise flanges mounted upon the respective shell means. a layer of resilient material arranged between said flanges. and fastening means drawing and holding the flanges together with said layer sandwiched therebetween.
  • joint connecting adjoining treatment sections comprise spaced telescoping end portions of the shell means and a layer of resilient material filling the space between said telescoping end portions. and means fastening said telescoping end portions together with said resilient material sandwiched therebetween.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
US498984A 1974-08-20 1974-08-20 Gas stream silencer Expired - Lifetime US3894610A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
US498984A US3894610A (en) 1974-08-20 1974-08-20 Gas stream silencer
ES435717A ES435717A1 (es) 1974-08-20 1975-03-18 Silenciador perfeccionado para controlar el ruido de una corriente de gas.
CA222,353A CA1026239A (en) 1974-08-20 1975-03-18 Multistage gas flow silencer
GB1126675A GB1466512A (en) 1974-08-20 1975-03-18 Gas stream silencer
FR7512033A FR2282533A1 (fr) 1974-08-20 1975-04-17 Silencieux
DK247275AA DK140181B (da) 1974-08-20 1975-06-03 Lyddæmper.
NO751949A NO751949L (da) 1974-08-20 1975-06-03
SE7507131A SE7507131L (sv) 1974-08-20 1975-06-19 Ljuddempare for gasstrommar.
JP50077067A JPS51128501A (en) 1974-08-20 1975-06-24 Gas flow silencer
DE2534556A DE2534556B2 (de) 1974-08-20 1975-08-02 Schalldämpfer für Gasströme

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US498984A US3894610A (en) 1974-08-20 1974-08-20 Gas stream silencer

Publications (1)

Publication Number Publication Date
US3894610A true US3894610A (en) 1975-07-15

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ID=23983309

Family Applications (1)

Application Number Title Priority Date Filing Date
US498984A Expired - Lifetime US3894610A (en) 1974-08-20 1974-08-20 Gas stream silencer

Country Status (10)

Country Link
US (1) US3894610A (da)
JP (1) JPS51128501A (da)
CA (1) CA1026239A (da)
DE (1) DE2534556B2 (da)
DK (1) DK140181B (da)
ES (1) ES435717A1 (da)
FR (1) FR2282533A1 (da)
GB (1) GB1466512A (da)
NO (1) NO751949L (da)
SE (1) SE7507131L (da)

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4045057A (en) * 1976-02-02 1977-08-30 Burgess Industries Incorporated Vibration barrier/structural connector for conduits and the like
US4105089A (en) * 1975-11-24 1978-08-08 Judd Frederick V H Flow distributor for gas turbine silencers
US4180141A (en) * 1975-11-24 1979-12-25 Judd Frederick V H Distributor for gas turbine silencers
US4616732A (en) * 1984-09-18 1986-10-14 S.I.V. S.P.A. Silencing system for exhaust gases from internal combustion engines
US4862993A (en) * 1988-09-30 1989-09-05 Rieger Heinz H Fireplace flue ambient noise reducing device
US5953787A (en) * 1996-09-10 1999-09-21 Kwangiu Electronics Co., Ltd. Suction globe of a vacuum cleaner
FR2785360A1 (fr) * 1998-11-03 2000-05-05 Decibel France Sa Dispositif permettant de reduire la production sonore liee a l'ecoulement d'un fluide par fractionnement du flux a l'aide de diffuseurs a perforations multiples
US20040065504A1 (en) * 2002-10-02 2004-04-08 Daniels Mark A. Absorptive/reactive muffler for variable speed compressors
FR2857431A1 (fr) * 2003-07-09 2005-01-14 Dbvib Insonorisation Attenuateur de bruit pour sortie de gaz sous pression
GB2405666A (en) * 2003-09-05 2005-03-09 Dunlop Aerospace Ltd Noise attenuator, eg for turbofan engine air bleed system
US20060124385A1 (en) * 2004-12-10 2006-06-15 Ingersoll-Rand Company Modular pressure pulsation dampener
US20100077755A1 (en) * 2008-10-01 2010-04-01 General Electric Company Sound attenuation systems and methods
CN102459986A (zh) * 2009-06-22 2012-05-16 空中客车营运有限公司 限流器和限流器在飞机空调系统的空气分配系统中的应用
US20120202407A1 (en) * 2011-02-04 2012-08-09 Phuong Taylor Nguyen Air Blast Blowdown Silencer System for Blast Pot
US8550208B1 (en) * 2012-04-23 2013-10-08 General Electric Company High pressure muffling devices
US20150377139A1 (en) * 2012-03-14 2015-12-31 Mitsubishi Heavy Industries, Ltd. Exhaust flue
RU2574196C2 (ru) * 2014-02-12 2016-02-10 Олег Савельевич Кочетов Одиночный звукопоглотитель кочетова
RU2632562C1 (ru) * 2017-01-13 2017-10-05 Олег Савельевич Кочетов Звукопоглотитель
CN107476864A (zh) * 2017-09-28 2017-12-15 徐州瑞田工程机械有限公司 一种可更换进气的消声器
RU2646995C2 (ru) * 2015-07-27 2018-03-13 Олег Савельевич Кочетов Одиночный звукопоглотитель кочетова
RU2654772C1 (ru) * 2017-10-03 2018-05-22 Олег Савельевич Кочетов Звукопоглотитель
RU2661423C2 (ru) * 2014-02-12 2018-07-16 Олег Савельевич Кочетов Одиночный звукопоглотитель для глушителей шума компрессорных станций
RU2662021C1 (ru) * 2017-10-03 2018-07-23 Олег Савельевич Кочетов Глушитель шума
CN112196672A (zh) * 2020-10-28 2021-01-08 南昌航空大学 一种微小型涡轮喷气发动机消声器及其设计方法
RU201874U1 (ru) * 2020-04-13 2021-01-19 Федеральное государственное бюджетное образовательное учреждение высшего образования "Дальневосточный государственный университет путей сообщения" (ДВГУПС) Глушитель шума
CN112761816A (zh) * 2021-01-25 2021-05-07 南昌航空大学 一种微小型航空发动机消声器
CN114592944A (zh) * 2021-12-29 2022-06-07 江苏徐海环境监测有限公司 一种噪声治理设备及其使用方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3144193A1 (de) * 1981-11-06 1983-05-19 Grünzweig + Hartmann und Glasfaser AG, 6700 Ludwigshafen Schallabsorbierender koerper, insbesondere fuer einen einbau in schalldaempfer
FR2642470A1 (fr) * 1989-01-27 1990-08-03 Glaenzer Spicer Sa Silencieux pour gaz d'echappement et partie de ligne d'echappement comportant un tel silencieux

Citations (5)

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US759964A (en) * 1903-09-19 1904-05-17 James Bonar Steam exhaust-head or muffler.
US992839A (en) * 1910-11-19 1911-05-23 Hartley C Wolle Blast-stove apparatus.
US2640557A (en) * 1950-12-13 1953-06-02 Fuller Co Retroverted passage type muffler with outer conduit formed of sound absorbing material
US2764250A (en) * 1953-01-23 1956-09-25 Jeffords Joseph Silencer for pneumatic devices
US3196977A (en) * 1960-04-27 1965-07-27 Industrial Acoustics Co Sound attenuation control means including diffuser for high velocity streams

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR499519A (fr) * 1918-07-24 1920-02-13 Cesare Parolini Nouveau silencieux pour moteurs d'aviation, d'automobiles, etc
FR514944A (fr) * 1920-05-05 1921-03-22 Cesare Parolini Silencieux pour moteurs à explosions
CH391384A (fr) * 1961-04-14 1965-04-30 Vaucher Roger Utilisation d'une résine durcissable à la chaleur

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US759964A (en) * 1903-09-19 1904-05-17 James Bonar Steam exhaust-head or muffler.
US992839A (en) * 1910-11-19 1911-05-23 Hartley C Wolle Blast-stove apparatus.
US2640557A (en) * 1950-12-13 1953-06-02 Fuller Co Retroverted passage type muffler with outer conduit formed of sound absorbing material
US2764250A (en) * 1953-01-23 1956-09-25 Jeffords Joseph Silencer for pneumatic devices
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US4105089A (en) * 1975-11-24 1978-08-08 Judd Frederick V H Flow distributor for gas turbine silencers
US4180141A (en) * 1975-11-24 1979-12-25 Judd Frederick V H Distributor for gas turbine silencers
US4045057A (en) * 1976-02-02 1977-08-30 Burgess Industries Incorporated Vibration barrier/structural connector for conduits and the like
US4616732A (en) * 1984-09-18 1986-10-14 S.I.V. S.P.A. Silencing system for exhaust gases from internal combustion engines
US4862993A (en) * 1988-09-30 1989-09-05 Rieger Heinz H Fireplace flue ambient noise reducing device
US5953787A (en) * 1996-09-10 1999-09-21 Kwangiu Electronics Co., Ltd. Suction globe of a vacuum cleaner
FR2785360A1 (fr) * 1998-11-03 2000-05-05 Decibel France Sa Dispositif permettant de reduire la production sonore liee a l'ecoulement d'un fluide par fractionnement du flux a l'aide de diffuseurs a perforations multiples
US20040065504A1 (en) * 2002-10-02 2004-04-08 Daniels Mark A. Absorptive/reactive muffler for variable speed compressors
WO2004031545A1 (en) * 2002-10-02 2004-04-15 Carrier Corporation Absorptive/reactive muffler for variable speed compressors
US6799657B2 (en) 2002-10-02 2004-10-05 Carrier Corporation Absorptive/reactive muffler for variable speed compressors
FR2857431A1 (fr) * 2003-07-09 2005-01-14 Dbvib Insonorisation Attenuateur de bruit pour sortie de gaz sous pression
GB2405666A (en) * 2003-09-05 2005-03-09 Dunlop Aerospace Ltd Noise attenuator, eg for turbofan engine air bleed system
US20060124385A1 (en) * 2004-12-10 2006-06-15 Ingersoll-Rand Company Modular pressure pulsation dampener
US20100077755A1 (en) * 2008-10-01 2010-04-01 General Electric Company Sound attenuation systems and methods
US8240427B2 (en) * 2008-10-01 2012-08-14 General Electric Company Sound attenuation systems and methods
CN102459986A (zh) * 2009-06-22 2012-05-16 空中客车营运有限公司 限流器和限流器在飞机空调系统的空气分配系统中的应用
US20120118408A1 (en) * 2009-06-22 2012-05-17 Airbus Operations Gmbh Flow limiter and use of a flow limiter in an air distribution system of an air conditioning system of an aircraft
CN102459986B (zh) * 2009-06-22 2017-02-15 空中客车营运有限公司 限流器和限流器在飞机空调系统的空气分配系统中的应用
US9243735B2 (en) * 2009-06-22 2016-01-26 Airbus Operations Gmbh Flow limiter and use of a flow limiter in an air distribution system of an air conditioning system of an aircraft
US20120202407A1 (en) * 2011-02-04 2012-08-09 Phuong Taylor Nguyen Air Blast Blowdown Silencer System for Blast Pot
US8708779B2 (en) * 2011-02-04 2014-04-29 Phuong Taylor Nguyen Air blast blowdown silencer system for blast pot
US9970358B2 (en) * 2012-03-14 2018-05-15 Mitsubishi Heavy Industries, Ltd. Exhaust flue
US20150377139A1 (en) * 2012-03-14 2015-12-31 Mitsubishi Heavy Industries, Ltd. Exhaust flue
US8550208B1 (en) * 2012-04-23 2013-10-08 General Electric Company High pressure muffling devices
US20130277142A1 (en) * 2012-04-23 2013-10-24 General Electric Company High pressure muffling devices
RU2574196C2 (ru) * 2014-02-12 2016-02-10 Олег Савельевич Кочетов Одиночный звукопоглотитель кочетова
RU2661423C2 (ru) * 2014-02-12 2018-07-16 Олег Савельевич Кочетов Одиночный звукопоглотитель для глушителей шума компрессорных станций
RU2646995C2 (ru) * 2015-07-27 2018-03-13 Олег Савельевич Кочетов Одиночный звукопоглотитель кочетова
RU2632562C1 (ru) * 2017-01-13 2017-10-05 Олег Савельевич Кочетов Звукопоглотитель
CN107476864A (zh) * 2017-09-28 2017-12-15 徐州瑞田工程机械有限公司 一种可更换进气的消声器
RU2654772C1 (ru) * 2017-10-03 2018-05-22 Олег Савельевич Кочетов Звукопоглотитель
RU2662021C1 (ru) * 2017-10-03 2018-07-23 Олег Савельевич Кочетов Глушитель шума
RU201874U1 (ru) * 2020-04-13 2021-01-19 Федеральное государственное бюджетное образовательное учреждение высшего образования "Дальневосточный государственный университет путей сообщения" (ДВГУПС) Глушитель шума
CN112196672A (zh) * 2020-10-28 2021-01-08 南昌航空大学 一种微小型涡轮喷气发动机消声器及其设计方法
CN112761816A (zh) * 2021-01-25 2021-05-07 南昌航空大学 一种微小型航空发动机消声器
CN114592944A (zh) * 2021-12-29 2022-06-07 江苏徐海环境监测有限公司 一种噪声治理设备及其使用方法
RU2787427C1 (ru) * 2022-01-10 2023-01-09 Владимир Викторович Коваленко Глушитель шума газового потока (ГШГП)

Also Published As

Publication number Publication date
DK140181C (da) 1979-11-26
GB1466512A (en) 1977-03-09
SE7507131L (sv) 1976-02-23
FR2282533A1 (fr) 1976-03-19
JPS51128501A (en) 1976-11-09
DE2534556B2 (de) 1979-02-01
DE2534556A1 (de) 1976-03-04
DK140181B (da) 1979-07-02
NO751949L (da) 1976-02-23
CA1026239A (en) 1978-02-14
DK247275A (da) 1976-02-21
FR2282533B1 (da) 1979-07-27
ES435717A1 (es) 1976-12-16

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