DE50311740D1 - METHOD FOR GENERATING A FREQUENCY SPECTRUM IN AN EXHAUST PIPE OF A PUSH-PISTON MACHINE - Google Patents

METHOD FOR GENERATING A FREQUENCY SPECTRUM IN AN EXHAUST PIPE OF A PUSH-PISTON MACHINE

Info

Publication number
DE50311740D1
DE50311740D1 DE50311740T DE50311740T DE50311740D1 DE 50311740 D1 DE50311740 D1 DE 50311740D1 DE 50311740 T DE50311740 T DE 50311740T DE 50311740 T DE50311740 T DE 50311740T DE 50311740 D1 DE50311740 D1 DE 50311740D1
Authority
DE
Germany
Prior art keywords
frequency spectrum
exhaust pipe
push
generating
piston machine
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
DE50311740T
Other languages
German (de)
Inventor
Joerg Hansen
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.)
AKUVIB ENGINEERING AND TESTING
Original Assignee
AKUVIB ENGINEERING AND TESTING
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 AKUVIB ENGINEERING AND TESTING filed Critical AKUVIB ENGINEERING AND TESTING
Priority to DE50311740T priority Critical patent/DE50311740D1/en
Application granted granted Critical
Publication of DE50311740D1 publication Critical patent/DE50311740D1/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
    • F01N1/168—Silencing apparatus characterised by method of silencing by using movable parts for controlling or modifying silencing characteristics only
    • 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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/161—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general in systems with fluid flow
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K15/00—Acoustics not otherwise provided for
    • G10K15/02—Synthesis of acoustic waves
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K15/00—Acoustics not otherwise provided for
    • G10K15/04—Sound-producing devices
    • 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
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/10—Tubes having non-circular cross section

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Combustion & Propulsion (AREA)
  • Multimedia (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Exhaust Silencers (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Characterised By The Charging Evacuation (AREA)

Abstract

The invention relates to a method for producing a frequency spectrum in an internal combustion piston engine, wherein a throttle valve functioning as a flow modulator is displaced in an oscillating manner inside the exhaust pipe, such that the frequency spectrum is modified in the exhaust flow. The drive of the throttle valve is controlled by means of a signal generator such that the oscillating throttle valve produces the desired frequency spectrum.
DE50311740T 2002-10-17 2003-10-16 METHOD FOR GENERATING A FREQUENCY SPECTRUM IN AN EXHAUST PIPE OF A PUSH-PISTON MACHINE Expired - Lifetime DE50311740D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE50311740T DE50311740D1 (en) 2002-10-17 2003-10-16 METHOD FOR GENERATING A FREQUENCY SPECTRUM IN AN EXHAUST PIPE OF A PUSH-PISTON MACHINE

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10248607A DE10248607A1 (en) 2002-10-17 2002-10-17 Method for generating a frequency spectrum in an exhaust pipe of a reciprocating engine
PCT/EP2003/011462 WO2004036001A1 (en) 2002-10-17 2003-10-16 Method for producing a frequency spectrum in an exhaust pipe of an internal combustion piston engine
DE50311740T DE50311740D1 (en) 2002-10-17 2003-10-16 METHOD FOR GENERATING A FREQUENCY SPECTRUM IN AN EXHAUST PIPE OF A PUSH-PISTON MACHINE

Publications (1)

Publication Number Publication Date
DE50311740D1 true DE50311740D1 (en) 2009-09-03

Family

ID=32087003

Family Applications (2)

Application Number Title Priority Date Filing Date
DE10248607A Withdrawn DE10248607A1 (en) 2002-10-17 2002-10-17 Method for generating a frequency spectrum in an exhaust pipe of a reciprocating engine
DE50311740T Expired - Lifetime DE50311740D1 (en) 2002-10-17 2003-10-16 METHOD FOR GENERATING A FREQUENCY SPECTRUM IN AN EXHAUST PIPE OF A PUSH-PISTON MACHINE

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE10248607A Withdrawn DE10248607A1 (en) 2002-10-17 2002-10-17 Method for generating a frequency spectrum in an exhaust pipe of a reciprocating engine

Country Status (4)

Country Link
EP (1) EP1982055B1 (en)
AT (1) ATE437296T1 (en)
DE (2) DE10248607A1 (en)
WO (1) WO2004036001A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7155333B1 (en) * 2005-09-02 2006-12-26 Arvin Technologies, Inc. Method and apparatus for controlling sound of an engine by sound frequency analysis
JP4341608B2 (en) * 2005-11-01 2009-10-07 トヨタ自動車株式会社 Engine sound control device
US7673720B2 (en) 2006-03-02 2010-03-09 Pacbrake Company High-performance muffler assembly with multiple modes of operation
DE102006034178A1 (en) * 2006-05-02 2007-11-08 Arvinmeritor Emissions Technologies Gmbh Device for influencing an exhaust gas flow
DE102006035297B4 (en) * 2006-07-31 2012-08-30 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Exhaust system of an internal combustion engine
JP2009108775A (en) * 2007-10-30 2009-05-21 Toyota Motor Corp Exhaust throttle valve opening control device for internal combustion engine
US8905187B2 (en) 2012-09-11 2014-12-09 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Device and method for manipulating the exhaust outlet noise of a motor vehicle
DE102012017902B4 (en) * 2012-09-11 2023-05-17 Christian Emile Marie Carme Device for influencing the exhaust noise of a motor vehicle
CN109196193B (en) * 2016-05-27 2022-03-15 伊维克斯私人有限公司 Control system for a valve

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2613089B1 (en) * 1987-03-24 1993-09-03 Centre Nat Rech Scient METHOD AND DEVICE FOR REDUCING FLOW FLUCTUATIONS OF A FLUID FLOW IN A PIPELINE
FR2693505B1 (en) * 1992-07-07 1994-09-09 Centre Ntl Recherche Scient Inlet or exhaust line for alternative machine.
DE4416739C2 (en) * 1994-05-12 1999-06-17 Alpha Technik Gmbh Device for reducing noise in internal combustion engines
DE4439705A1 (en) * 1994-11-05 1996-05-09 Gillet Heinrich Gmbh Pressure pulsation reduction system for automobile exhaust pipe
DE19911338A1 (en) * 1999-03-15 2000-09-21 Volkswagen Ag Internal combustion engine with an exhaust gas control device
DE10055399A1 (en) * 1999-11-20 2001-05-23 Mann & Hummel Filter Controlling sound in air inlet manifold of engine, employs valve closing at least partially, at given periodic intervals when little or no air is transferred

Also Published As

Publication number Publication date
WO2004036001A1 (en) 2004-04-29
EP1982055B1 (en) 2009-07-22
DE10248607A1 (en) 2004-05-06
EP1982055A1 (en) 2008-10-22
ATE437296T1 (en) 2009-08-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition