GB763327A - Improvements in or relating to gas silencing or sound absorbing devices - Google Patents
Improvements in or relating to gas silencing or sound absorbing devicesInfo
- Publication number
- GB763327A GB763327A GB36475/54A GB3647554A GB763327A GB 763327 A GB763327 A GB 763327A GB 36475/54 A GB36475/54 A GB 36475/54A GB 3647554 A GB3647554 A GB 3647554A GB 763327 A GB763327 A GB 763327A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ducts
- cross
- silencer
- inlet
- outlet
- 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
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D9/00—Compositions of detergents based essentially on soap
- C11D9/04—Compositions of detergents based essentially on soap containing compounding ingredients other than soaps
- C11D9/06—Inorganic compounds
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D9/00—Compositions of detergents based essentially on soap
- C11D9/04—Compositions of detergents based essentially on soap containing compounding ingredients other than soaps
- C11D9/22—Organic compounds, e.g. vitamins
- C11D9/38—Products in which the composition is not well defined
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/06—Silencing apparatus characterised by method of silencing by using interference effect
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Exhaust Silencers (AREA)
Abstract
763,327. Exhaust-silencers ; intake silencers. LEISTRITZ, H. K. Dec. 16, 1954 [Dec. 18, 1953; Dec. 28, 1953; Jan. 3, 1954; Jan. 20, 1954], No. 36475/54. Class 7 (2). In a silencer embodying at least one sounddamping unit arranged to divide a gas stream into a number of component gas streams which are separated and issue from the exit of the silencer at spaced intervals of time, the gas flow ducts 2-7 are of unequal length and extend between common inlet and exit orifices 1, 9, and the cross-sectional areas of the longer ducts are greater than those of the shorter ducts; also the cross-sectional area of the exit orifice is smaller than that of the inlet orifice. As shown in Fig. 1, the cross-sectional area of the outlet orifice is constricted by a projecting tongue 7a. The cross-sectional area of the ducts may increase from the inlet to the outlet ends thereof, and be proportional to the lengths of the ducts. In Fig. 2, two units are disposed in series, the gas entering at 10 and being subdivided by ducts 11-14 communicating with a duct 15 which in turn forms the inlet to a second system of ducts 16-19 of different cross-sections and lengths and also having different curvatures; the latter ducts connect with an outlet 20, In a further embodiment, Figs. 4 and 5 (not shown), two sound-damping units are disposed side-by-side, the ducts of each unit being interconnected. The silencer may be directly connected, or by a pipe 35, to the exhaust port of an engine, and in turn be connected to a baffle-free chamber 37, Fig. 6, having an inlet nozzle and an outlet nozzle 38, both nozzles having a cross-sectional area equal to that of the outlet of the silencer. The combination of a silencer and a baffle-free chamber may be located on the intake side of the engine.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE763327X | 1953-12-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB763327A true GB763327A (en) | 1956-12-12 |
Family
ID=41057293
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB36475/54A Expired GB763327A (en) | 1953-12-18 | 1954-12-16 | Improvements in or relating to gas silencing or sound absorbing devices |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB763327A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2966955A (en) * | 1958-08-13 | 1961-01-03 | Roy B Smith | Muffler |
WO2006098694A1 (en) * | 2005-03-18 | 2006-09-21 | Tumane Enterprises Limited | A sound dampening flow channel device |
-
1954
- 1954-12-16 GB GB36475/54A patent/GB763327A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2966955A (en) * | 1958-08-13 | 1961-01-03 | Roy B Smith | Muffler |
WO2006098694A1 (en) * | 2005-03-18 | 2006-09-21 | Tumane Enterprises Limited | A sound dampening flow channel device |
US8061476B2 (en) | 2005-03-18 | 2011-11-22 | Tumane Enterprises Limited | Sound dampening flow channel device |
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