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SE521329C2 - Anordning och förfarande vid ljuddämpande enhet - Google Patents

Anordning och förfarande vid ljuddämpande enhet

Info

Publication number
SE521329C2
SE521329C2 SE9903168A SE9903168A SE521329C2 SE 521329 C2 SE521329 C2 SE 521329C2 SE 9903168 A SE9903168 A SE 9903168A SE 9903168 A SE9903168 A SE 9903168A SE 521329 C2 SE521329 C2 SE 521329C2
Authority
SE
Sweden
Prior art keywords
opening
degree
pressure
damper
limit value
Prior art date
Application number
SE9903168A
Other languages
English (en)
Swedish (sv)
Other versions
SE9903168L (sv
SE9903168D0 (sv
Inventor
Ahmed El-Bahrawy
Original Assignee
Volvo Personvagnar Ab
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 Volvo Personvagnar Ab filed Critical Volvo Personvagnar Ab
Priority to SE9903168A priority Critical patent/SE521329C2/sv
Publication of SE9903168D0 publication Critical patent/SE9903168D0/xx
Priority to PCT/SE2000/001695 priority patent/WO2001018365A1/fr
Publication of SE9903168L publication Critical patent/SE9903168L/
Publication of SE521329C2 publication Critical patent/SE521329C2/sv

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
    • 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
    • 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
    • F01N1/083—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using transversal baffles defining a tortuous path for the exhaust gases or successively throttling exhaust gas flow
    • 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
    • F01N1/089—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using two or more expansion chambers in series
    • 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
    • F01N1/16—Silencing apparatus characterised by method of silencing by using movable parts
    • F01N1/165—Silencing apparatus characterised by method of silencing by using movable parts for adjusting flow area
    • 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
    • F01N1/16—Silencing apparatus characterised by method of silencing by using movable parts
    • F01N1/166—Silencing apparatus characterised by method of silencing by using movable parts for changing the flow path through the silencer or for adjusting the dimensions of a chamber or a pipe
    • 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
    • F01N1/24—Silencing apparatus characterised by method of silencing by using 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
    • F01N2310/00—Selection of sound absorbing or insulating material
    • F01N2310/02—Mineral wool, e.g. glass wool, rock wool, asbestos or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Pipe Accessories (AREA)
SE9903168A 1999-09-06 1999-09-06 Anordning och förfarande vid ljuddämpande enhet SE521329C2 (sv)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE9903168A SE521329C2 (sv) 1999-09-06 1999-09-06 Anordning och förfarande vid ljuddämpande enhet
PCT/SE2000/001695 WO2001018365A1 (fr) 1999-09-06 2000-09-04 Dispositif pour silencieux et procede permettant de reduire le bruit resultant du passage des gaz

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9903168A SE521329C2 (sv) 1999-09-06 1999-09-06 Anordning och förfarande vid ljuddämpande enhet

Publications (3)

Publication Number Publication Date
SE9903168D0 SE9903168D0 (sv) 1999-09-06
SE9903168L SE9903168L (sv) 2001-03-07
SE521329C2 true SE521329C2 (sv) 2003-10-21

Family

ID=20416893

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9903168A SE521329C2 (sv) 1999-09-06 1999-09-06 Anordning och förfarande vid ljuddämpande enhet

Country Status (2)

Country Link
SE (1) SE521329C2 (fr)
WO (1) WO2001018365A1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2072372A (en) * 1934-02-23 1937-03-02 Riethmiller Ruth Exhaust system for automotive engines
NZ240672A (en) * 1991-12-04 1995-10-26 Graeme Charles Stephens Muffler with valve controlled through passage
DE69531286T2 (de) * 1995-02-24 2004-01-29 Calsonic Kansei Corp Schalldämpferkontrollgerät zur Verwendung in einem steuerbaren Abgassystem einer Brennkraftmaschine
DE19540716C1 (de) * 1995-11-02 1997-04-17 Gillet Heinrich Gmbh Schalldämpfer mit variabler Dämpfungscharakteristik
SE517825C2 (sv) * 1997-11-14 2002-07-23 Volvo Car Corp Anordning och förfarande vid ljuddämpande enhet samt användning av anordningen vid ett motorfordon

Also Published As

Publication number Publication date
WO2001018365A1 (fr) 2001-03-15
SE9903168L (sv) 2001-03-07
SE9903168D0 (sv) 1999-09-06

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Legal Events

Date Code Title Description
NUG Patent has lapsed