GB763327A - Improvements in or relating to gas silencing or sound absorbing devices - Google Patents

Improvements in or relating to gas silencing or sound absorbing devices

Info

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
Application number
GB36475/54A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB763327A publication Critical patent/GB763327A/en
Expired legal-status Critical Current

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.
GB36475/54A 1953-12-18 1954-12-16 Improvements in or relating to gas silencing or sound absorbing devices Expired GB763327A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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