GB927640A - A device for attenuating noises in fluid flow - Google Patents
A device for attenuating noises in fluid flowInfo
- Publication number
- GB927640A GB927640A GB4958/60A GB495860A GB927640A GB 927640 A GB927640 A GB 927640A GB 4958/60 A GB4958/60 A GB 4958/60A GB 495860 A GB495860 A GB 495860A GB 927640 A GB927640 A GB 927640A
- Authority
- GB
- United Kingdom
- Prior art keywords
- casing
- header
- exhaust
- headers
- pipes
- 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
Links
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
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/005—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for draining or otherwise eliminating condensates or moisture accumulating in the apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
- F01N1/04—Silencing apparatus characterised by method of silencing by using resonance having sound-absorbing materials in resonance chambers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—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
- F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
- F01N2240/20—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a flow director or deflector
-
- 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
- F01N2490/15—Plurality of resonance or dead chambers
- F01N2490/155—Plurality of resonance or dead chambers being disposed one after the other in flow direction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Abstract
927,640. Exhaust silencers. W. S. EVERETT. Feb. 11, 1960, No. 4958/60. Class 7(2). A device for attenuating noises from fluid flowing through an exhaust passage comprises an elongated casing 14 having a closure 12 through which extends an inlet pipe 10, a first header 19 provided within the casing and a second header 30 provided at the other end of the casing, and a plurality of perforated spaced pipes 24, 25, 26 which extend through both headers. The second header comprises an outwardly concave dish-shaped reflector for directing any issuing noise in a single direction and the pipes 24, 25, 26 are surrounded by sound absorbent material 31, e.g. fibre glass, copper chips or steel chips disposed in the casing between the headers. Preferably the header 30 is parabolic in shape and has an inside diameter of the order of magnitude of the predominant wavelength of the exhaust noise. The ratio of the length to diameter of the tubes 24, 25, 26 is preferably within the limits of 4 to 1 and 6 to 1. The outlet area of the device is at least twice the inlet area but preferably three to seven times. A shield 16 is centrally supported in the casing by legs 17.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4958/60A GB927640A (en) | 1960-02-11 | 1960-02-11 | A device for attenuating noises in fluid flow |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4958/60A GB927640A (en) | 1960-02-11 | 1960-02-11 | A device for attenuating noises in fluid flow |
Publications (1)
Publication Number | Publication Date |
---|---|
GB927640A true GB927640A (en) | 1963-05-29 |
Family
ID=9787095
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4958/60A Expired GB927640A (en) | 1960-02-11 | 1960-02-11 | A device for attenuating noises in fluid flow |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB927640A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1231063B (en) * | 1964-04-10 | 1966-12-22 | Gruenzweig & Hartmann | Silencer for sound-carrying gaseous media |
FR2546970A1 (en) * | 1983-05-31 | 1984-12-07 | Gayton Henri | SILENCER FOR COMPRESSED AIR INSTALLATION |
EP1564508A2 (en) * | 2004-02-16 | 2005-08-17 | LG Electronics Inc. | Absorption pipe structure of compressor |
-
1960
- 1960-02-11 GB GB4958/60A patent/GB927640A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1231063B (en) * | 1964-04-10 | 1966-12-22 | Gruenzweig & Hartmann | Silencer for sound-carrying gaseous media |
FR2546970A1 (en) * | 1983-05-31 | 1984-12-07 | Gayton Henri | SILENCER FOR COMPRESSED AIR INSTALLATION |
EP1564508A2 (en) * | 2004-02-16 | 2005-08-17 | LG Electronics Inc. | Absorption pipe structure of compressor |
EP1564508A3 (en) * | 2004-02-16 | 2011-07-06 | LG Electronics, Inc. | Absorption pipe structure of compressor |
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