IT1211848B - Dispositivo silenziatore per scarichi di motori e simili,ad interferenza acustica - Google Patents

Dispositivo silenziatore per scarichi di motori e simili,ad interferenza acustica

Info

Publication number
IT1211848B
IT1211848B IT8748488A IT4848887A IT1211848B IT 1211848 B IT1211848 B IT 1211848B IT 8748488 A IT8748488 A IT 8748488A IT 4848887 A IT4848887 A IT 4848887A IT 1211848 B IT1211848 B IT 1211848B
Authority
IT
Italy
Prior art keywords
pct
date
exhaust
rod
sec
Prior art date
Application number
IT8748488A
Other languages
English (en)
Other versions
IT8748488A0 (it
Inventor
Mascioli Alessandro
Original Assignee
Roma A
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 Roma A filed Critical Roma A
Priority to IT8748488A priority Critical patent/IT1211848B/it
Publication of IT8748488A0 publication Critical patent/IT8748488A0/it
Priority to JP63508293A priority patent/JPH02501585A/ja
Priority to PCT/IT1988/000072 priority patent/WO1989003472A2/en
Priority to US07/362,391 priority patent/US5058702A/en
Priority to DE8888908972T priority patent/DE3875239T2/de
Priority to EP88908972A priority patent/EP0335941B1/en
Priority to AT88908972T priority patent/ATE81386T1/de
Application granted granted Critical
Publication of IT1211848B publication Critical patent/IT1211848B/it

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
    • F01N1/06—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
    • F01N1/16—Silencing apparatus characterised by method of silencing by using movable parts
    • F01N1/20—Silencing apparatus characterised by method of silencing by using movable parts having oscillating or vibrating movement
    • 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/14—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having thermal insulation
    • 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
    • F01N2290/00—Movable parts or members in exhaust systems for other than for control purposes
    • F01N2290/08—Movable parts or members in exhaust systems for other than for control purposes with oscillating or vibrating movement
    • F01N2290/10—Movable parts or members in exhaust systems for other than for control purposes with oscillating or vibrating movement actuated by pressure of exhaust gases, e.g. exhaust pulses
    • 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
    • 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
    • F01N2490/16—Chambers with particular shapes, e.g. spherical
IT8748488A 1987-10-12 1987-10-12 Dispositivo silenziatore per scarichi di motori e simili,ad interferenza acustica IT1211848B (it)

Priority Applications (7)

Application Number Priority Date Filing Date Title
IT8748488A IT1211848B (it) 1987-10-12 1987-10-12 Dispositivo silenziatore per scarichi di motori e simili,ad interferenza acustica
JP63508293A JPH02501585A (ja) 1987-10-12 1988-10-11 音波の干渉を利用した自動車等の排気装置の為の消音装置
PCT/IT1988/000072 WO1989003472A2 (en) 1987-10-12 1988-10-11 A silencer device for exhausts of motors and similar, with acoustic interference
US07/362,391 US5058702A (en) 1987-10-12 1988-10-11 Silencer device for exhausts of motors and similar, with acoustic interference
DE8888908972T DE3875239T2 (de) 1987-10-12 1988-10-11 Motorabgasschalldaempfer mit akustischer interferenz.
EP88908972A EP0335941B1 (en) 1987-10-12 1988-10-11 A silencer device for exhausts of motors and similar, with acoustic interference
AT88908972T ATE81386T1 (de) 1987-10-12 1988-10-11 Motorabgasschalldaempfer mit akustischer interferenz.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8748488A IT1211848B (it) 1987-10-12 1987-10-12 Dispositivo silenziatore per scarichi di motori e simili,ad interferenza acustica

Publications (2)

Publication Number Publication Date
IT8748488A0 IT8748488A0 (it) 1987-10-12
IT1211848B true IT1211848B (it) 1989-11-03

Family

ID=11266865

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8748488A IT1211848B (it) 1987-10-12 1987-10-12 Dispositivo silenziatore per scarichi di motori e simili,ad interferenza acustica

Country Status (7)

Country Link
US (1) US5058702A (it)
EP (1) EP0335941B1 (it)
JP (1) JPH02501585A (it)
AT (1) ATE81386T1 (it)
DE (1) DE3875239T2 (it)
IT (1) IT1211848B (it)
WO (1) WO1989003472A2 (it)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000047877A1 (en) * 1999-02-09 2000-08-17 Konstantin Stakhnov The method of neutralization of used gases and reduction of the noise of exhaust of internal combustion engine and device for its execution (variants)
EP1246162A1 (fr) 2001-03-27 2002-10-02 Recherche et Développement GROUPE COCKERILL SAMBRE Enveloppes ou parois presentant des propriétés ajustables d'isolement et/ou d'absorption accoustique
DE10222507A1 (de) * 2001-09-24 2003-05-08 Daimler Chrysler Ag Vorrichtung zur Geräuschgestaltung bei einem Kraftfahrzeug
US6932189B2 (en) 2001-09-24 2005-08-23 Daimlerchrysler Ag Device for noise structuring in a motor vehicle
FR2838476B1 (fr) * 2002-04-12 2005-06-24 Faurecia Sys Echappement Volume d'echappement comportant une enveloppe delimitant un passage de circulation des gaz
JP4677744B2 (ja) * 2003-11-04 2011-04-27 ソニー株式会社 噴流発生装置、電子機器及び噴流発生方法
DE102004041699A1 (de) * 2004-08-28 2006-03-02 Mann + Hummel Gmbh Vorrichtung zur Geräuschübertragung in einem Kraftfahrzeug
DE102008019488A1 (de) 2008-04-17 2009-10-22 Behr Gmbh & Co. Kg Fluiddruckpulsationsdämpfungsvorrichtung
US20120285667A1 (en) * 2011-05-13 2012-11-15 Lighting Science Group Corporation Sound baffling cooling system for led thermal management and associated methods
WO2017042784A1 (en) * 2016-07-20 2017-03-16 Universidad Tecnológica De Panamá Device and method for silencing noise acoustic waves

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1194562A (fr) * 1958-04-11 1959-11-10 Perfectionnements aux silencieux pour moteurs à combustion interne
FR1478901A (fr) * 1966-05-05 1967-04-28 Dispositif de conduit d'échappement de véhicule à moteur et autres
US3396812A (en) * 1967-07-05 1968-08-13 Arvin Ind Inc Acoustic quarter wave tube
SU560952A1 (ru) * 1975-09-10 1977-06-05 Звукоизолирующа перегородка
GB1583758A (en) * 1976-10-01 1981-02-04 Nat Res Dev Attenuation of sound waves in ducts

Also Published As

Publication number Publication date
DE3875239T2 (de) 1993-09-16
ATE81386T1 (de) 1992-10-15
IT8748488A0 (it) 1987-10-12
EP0335941A1 (en) 1989-10-11
WO1989003472A3 (en) 1989-05-05
US5058702A (en) 1991-10-22
EP0335941B1 (en) 1992-10-07
WO1989003472A2 (en) 1989-04-20
JPH02501585A (ja) 1990-05-31
DE3875239D1 (de) 1992-11-12

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19961029