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DE602004007163D1 - METHOD FOR REDUCING NOISE FROM A HIGH PERFORMANCE COMBUSTION ENGINE - Google Patents

METHOD FOR REDUCING NOISE FROM A HIGH PERFORMANCE COMBUSTION ENGINE

Info

Publication number
DE602004007163D1
DE602004007163D1 DE602004007163T DE602004007163T DE602004007163D1 DE 602004007163 D1 DE602004007163 D1 DE 602004007163D1 DE 602004007163 T DE602004007163 T DE 602004007163T DE 602004007163 T DE602004007163 T DE 602004007163T DE 602004007163 D1 DE602004007163 D1 DE 602004007163D1
Authority
DE
Germany
Prior art keywords
sound reduction
enables
frequency area
exhaust system
reactive part
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
DE602004007163T
Other languages
German (de)
Other versions
DE602004007163T2 (en
Inventor
Claes-Goeran Johansson
Mats Abom
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.)
Wartsila Finland Oy
Original Assignee
CALLENBERG FLAEKT MARINE 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 CALLENBERG FLAEKT MARINE AB filed Critical CALLENBERG FLAEKT MARINE AB
Publication of DE602004007163D1 publication Critical patent/DE602004007163D1/en
Application granted granted Critical
Publication of DE602004007163T2 publication Critical patent/DE602004007163T2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/02—Exhaust or silencing apparatus characterised by constructional features having two or more separate silencers 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Tires In General (AREA)
  • Supercharger (AREA)

Abstract

A sound reduction system for reducing noise from a high power combustion engine is supplied by means of a method. The sound reduction system comprises a plurality of elements and attenuating devices placed in an elongated channel. During design of the sound reduction system one makes use of a particular suitable attenuating element with a first reactive part, a second reactive part and a third reactive part. Such a module, which is less sensitive to position in the channel, cost effective to manufacture and cost effective to model, is combined with single attenuating devices. The method enables a user to meet the requirements on sound reduction and keeping construction costs down, by using an iterative step-by-step approach. Such an approach is unknown according to traditional methods. An advantage of the method is that it enables an accurate acoustic model of the complete exhaust system, not only in the low frequency area and in the upper frequency area, but also in the intermediate frequency area. The method provides efficient modeling of an exhaust system and enables that a desired noise level close to the outlet of the exhaust system is met.
DE602004007163T 2003-12-31 2004-12-16 METHOD FOR REDUCING NOISE FROM A HIGH PERFORMANCE COMBUSTION ENGINE Expired - Lifetime DE602004007163T2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE0303613A SE526680C2 (en) 2003-12-31 2003-12-31 Procedure for reducing noise in a high-power internal combustion engine
SE0303613 2003-12-31
PCT/SE2004/001898 WO2005064127A1 (en) 2003-12-31 2004-12-16 A method for reducing noise of a high power combustion engine

Publications (2)

Publication Number Publication Date
DE602004007163D1 true DE602004007163D1 (en) 2007-08-02
DE602004007163T2 DE602004007163T2 (en) 2008-02-21

Family

ID=30768920

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602004007163T Expired - Lifetime DE602004007163T2 (en) 2003-12-31 2004-12-16 METHOD FOR REDUCING NOISE FROM A HIGH PERFORMANCE COMBUSTION ENGINE

Country Status (6)

Country Link
US (1) US20070240933A1 (en)
EP (1) EP1704306B1 (en)
AT (1) ATE365266T1 (en)
DE (1) DE602004007163T2 (en)
SE (1) SE526680C2 (en)
WO (1) WO2005064127A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100969378B1 (en) * 2008-03-31 2010-07-09 현대자동차주식회사 Exhaust gas filter
WO2014076355A1 (en) 2012-11-15 2014-05-22 Wärtsilä Finland Oy An exhaust gas noise attenuator unit for internal combustion piston engine
GB2528950A (en) 2014-08-06 2016-02-10 Aaf Ltd Sound suppression apparatus
WO2016189187A1 (en) 2015-05-25 2016-12-01 Wärtsilä Finland Oy An acoustic attenuator for damping pressure vibrations in an exhaust system of an engine, an acoustic attenuation system using the attenuators, and method of damping pressure vibrations in an exhaust system of an engine
DK179246B1 (en) * 2016-03-31 2018-03-05 Ap Moeller Maersk As Container ship
JP7422402B2 (en) * 2020-10-29 2024-01-26 学校法人東海大学 thermoacoustic silencer

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2826261A (en) * 1956-08-30 1958-03-11 Oliver C Eckel Acoustical control apparatus
US4371054A (en) * 1978-03-16 1983-02-01 Lockheed Corporation Flow duct sound attenuator
JPH0544503Y2 (en) * 1988-07-29 1993-11-11
DE69702447T2 (en) * 1996-04-22 2001-02-22 Wilhelmus Lambertus Arnoldus Meusen EXHAUST GAS DEVICE FOR INTERNAL COMBUSTION ENGINES AND VEHICLE WITH THIS DEVICE
SE9604664L (en) * 1996-12-19 1998-01-19 Flaekt Ab Device and method of noise reduction in a gaseous medium transport system and use of the device in a ship exhaust system
US6454047B1 (en) * 2000-10-17 2002-09-24 Bbnt Solutions Llc System and method for phases noise attenuation

Also Published As

Publication number Publication date
SE0303613L (en) 2005-07-01
WO2005064127A1 (en) 2005-07-14
SE0303613D0 (en) 2003-12-31
EP1704306A1 (en) 2006-09-27
US20070240933A1 (en) 2007-10-18
EP1704306B1 (en) 2007-06-20
ATE365266T1 (en) 2007-07-15
SE526680C2 (en) 2005-10-25
DE602004007163T2 (en) 2008-02-21

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

Owner name: WAERTSILAE FINLAND OY, VAASA, FI

8328 Change in the person/name/address of the agent

Representative=s name: ZIPSE HABERSACK KRITZENBERGER, 80639 MUENCHEN

8364 No opposition during term of opposition