ES2031968T3 - WORKING PROCEDURE FOR ACOUSTIC DAMPING IN GAS CONDUCTIVE FACILITIES WITH DYNAMIC PRESSURE FLUCTUATIONS IN THE CIRCULATING ENVIRONMENT PARTICULARLY IN EXHAUST GAS FACILITIES OF INTERNAL COMBUSTION ENGINES. - Google Patents

WORKING PROCEDURE FOR ACOUSTIC DAMPING IN GAS CONDUCTIVE FACILITIES WITH DYNAMIC PRESSURE FLUCTUATIONS IN THE CIRCULATING ENVIRONMENT PARTICULARLY IN EXHAUST GAS FACILITIES OF INTERNAL COMBUSTION ENGINES.

Info

Publication number
ES2031968T3
ES2031968T3 ES198888113362T ES88113362T ES2031968T3 ES 2031968 T3 ES2031968 T3 ES 2031968T3 ES 198888113362 T ES198888113362 T ES 198888113362T ES 88113362 T ES88113362 T ES 88113362T ES 2031968 T3 ES2031968 T3 ES 2031968T3
Authority
ES
Spain
Prior art keywords
facilities
gas
internal combustion
combustion engines
pressure fluctuations
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
ES198888113362T
Other languages
Spanish (es)
Inventor
Raymond Dr. Freymann
Albrecht Keck
Anton Haas
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Application granted granted Critical
Publication of ES2031968T3 publication Critical patent/ES2031968T3/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
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/16—Silencing apparatus characterised by method of silencing by using movable parts
    • F01N1/18—Silencing apparatus characterised by method of silencing by using movable parts having rotary 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
    • F01N1/16—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Abstract

CON UN PROCEDIMIENTO PARA LA AMORTIGUACION DEL RUIDO EN INSTALACIONES DE GAS PERDIDO DE MOTORES DE COMBUSTION INTERNA CON UNA ESTRANGULACION DE LA INSTALACION DE GAS PERDIDO EN DEPENDENDIA DE POR LO MENOS UNA MAGNITUD DE SERVICIO DEL MOTOR DE COMBUSTION INTERNA, SE PROPONE QUE SE ESTRANGULA LA INSTALACION DE GAS PERDIDO SOLO CON AMPLITUDES DE PRESION POSITIVAS DE LAS FLUCTUACIONES DE LA PRESION DE GAS PERDIDO DINAMICAS Y SONCRONICAS CON LA FRECUENCIA DE LAS MISMAS AMPLIFICADAS DE PRESION.WITH A PROCEDURE FOR NOISE DAMPING IN LOST GAS FACILITIES OF INTERNAL COMBUSTION ENGINES WITH A STRANGULATION OF THE LOST GAS INSTALLATION DEPENDING ON AT LEAST ONE MAGNITUDE OF SERVICE OF THE INTERNAL COMBUSTION ENGINE, IT IS PROPOSED THAT THE INSTALLATION IS STRANGULATED GAS LOSS ONLY WITH POSITIVE PRESSURE AMPLITUDES OF DYNAMIC AND SONCHRONIC GAS PRESSURE FLUCTUATIONS WITH THE FREQUENCY OF THE SAME PRESSURE AMPLIFIED.

ES198888113362T 1987-09-15 1988-08-17 WORKING PROCEDURE FOR ACOUSTIC DAMPING IN GAS CONDUCTIVE FACILITIES WITH DYNAMIC PRESSURE FLUCTUATIONS IN THE CIRCULATING ENVIRONMENT PARTICULARLY IN EXHAUST GAS FACILITIES OF INTERNAL COMBUSTION ENGINES. Expired - Lifetime ES2031968T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3730890 1987-09-15

Publications (1)

Publication Number Publication Date
ES2031968T3 true ES2031968T3 (en) 1993-01-01

Family

ID=6336010

Family Applications (1)

Application Number Title Priority Date Filing Date
ES198888113362T Expired - Lifetime ES2031968T3 (en) 1987-09-15 1988-08-17 WORKING PROCEDURE FOR ACOUSTIC DAMPING IN GAS CONDUCTIVE FACILITIES WITH DYNAMIC PRESSURE FLUCTUATIONS IN THE CIRCULATING ENVIRONMENT PARTICULARLY IN EXHAUST GAS FACILITIES OF INTERNAL COMBUSTION ENGINES.

Country Status (3)

Country Link
EP (1) EP0307639B1 (en)
DE (1) DE3870778D1 (en)
ES (1) ES2031968T3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8928052D0 (en) * 1989-12-12 1990-02-14 Lotus Group Plc Control of pressure vibrations in ducts
FR2808916B1 (en) * 2000-05-11 2003-08-15 Jean Laurent Peube ELECTROAEROACOUSTIC SOURCE AND SYSTEM FOR ACTIVE NOISE CONTROL
DE10030490B4 (en) * 2000-06-21 2005-07-21 Dr.Ing.H.C. F. Porsche Ag Exhaust system for an internal combustion engine
US7243623B2 (en) * 2005-07-05 2007-07-17 Arvin Technologies, Inc. Velocity control of exhaust valve actuation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR360413A (en) * 1905-10-31 1906-04-21 Louis T Weiss Improvements in exhaust pipes
US2320668A (en) * 1941-08-15 1943-06-01 Harry A Smith Mechanical exhaust silencer
SE447290B (en) * 1985-03-19 1986-11-03 Volvo Ab DEVICE NOISE MEASURING MEASUREMENT THROUGH A GAS STAINLESS STEEL VALVE CONTROL VALVE

Also Published As

Publication number Publication date
EP0307639A1 (en) 1989-03-22
DE3870778D1 (en) 1992-06-11
EP0307639B1 (en) 1992-05-06

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