DE20003519U1 - Helmholtz resonator - Google Patents

Helmholtz resonator

Info

Publication number
DE20003519U1
DE20003519U1 DE20003519U DE20003519U DE20003519U1 DE 20003519 U1 DE20003519 U1 DE 20003519U1 DE 20003519 U DE20003519 U DE 20003519U DE 20003519 U DE20003519 U DE 20003519U DE 20003519 U1 DE20003519 U1 DE 20003519U1
Authority
DE
Germany
Prior art keywords
helmholtz resonator
helmholtz
switching element
resonator according
flow
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
DE20003519U
Other languages
German (de)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE20003519U priority Critical patent/DE20003519U1/en
Publication of DE20003519U1 publication Critical patent/DE20003519U1/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
    • F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
    • F01N1/023—Helmholtz resonators
    • 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
    • F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
    • 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 gas flow path through the silencer or for adjusting the dimensions of a chamber or a pipe
    • 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
    • G10K11/172—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using resonance effects
    • 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
    • F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
    • F01N2260/14—Exhaust treating devices having provisions not otherwise provided for for modifying or adapting flow area or back-pressure
    • 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
    • F01N2410/00—By-passing, at least partially, exhaust from inlet to outlet of apparatus, to atmosphere or to other device
    • 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
    • F01N2490/15—Plurality of resonance or dead chambers
    • F01N2490/155—Plurality of resonance or dead chambers being disposed one after the other in flow direction

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
  • Exhaust Silencers (AREA)

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims (5)

1. Helmholtzresonator, dadurch gekennzeichnet, daß durch ein Schaltelement das Helmholtzsystem außerhalb seiner Wirkfrequenz geöffnet und durchströmt werden kann.1. Helmholtz resonator, characterized in that the Helmholtz system can be opened and flowed through outside of its effective frequency by a switching element. 2. Helmholtzresonator nach Anspruch 1, dadurch gekennzeichnet, daß bei geöffnetem Helmholtzresonator eine By-Fass-Strömung durch den Helmholtzresonator fließt, so daß die anderen strömungsführenden Bau­ teile des Gesamtsystems in freien Querschnitt reduziert werden können.2. Helmholtz resonator according to claim 1, characterized in that With the Helmholtz resonator open, a by-barrel flow through the Helmholtz resonator flows, so that the other flow-bearing construction parts of the overall system can be reduced in free cross section. 3. Helmholtzresonator nach Anspruch 1 und 2, dadurch gekennzeichnet, daß das Schaltelement systemgesteuert ist (z. B.: durch Gegendruck).3. Helmholtz resonator according to claim 1 and 2, characterized in that the switching element is system-controlled (e.g. by back pressure). 4. Helmholtzresonator nach Anspruch 1 und 2, dadurch gekennzeichnet, daß das Schaltelement fremdgesteuert ist (z. B.: Schaltimpuls).4. Helmholtz resonator according to claim 1 and 2, characterized in that the switching element is externally controlled (e.g. switching impulse). 5. Helmholtzresonator nach Anspruch 1 bis 4, dadurch gekennzeichnet, daß das Helmholtzvolumen und/oder das Helmholtzrohr zusätzliche Bedämpfung aufweist.5. Helmholtz resonator according to claim 1 to 4, characterized in that the Helmholtz volume and / or the Helmholtz tube additional Has damping.
DE20003519U 2000-02-25 2000-02-25 Helmholtz resonator Expired - Lifetime DE20003519U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE20003519U DE20003519U1 (en) 2000-02-25 2000-02-25 Helmholtz resonator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE20003519U DE20003519U1 (en) 2000-02-25 2000-02-25 Helmholtz resonator

Publications (1)

Publication Number Publication Date
DE20003519U1 true DE20003519U1 (en) 2000-06-08

Family

ID=7937937

Family Applications (1)

Application Number Title Priority Date Filing Date
DE20003519U Expired - Lifetime DE20003519U1 (en) 2000-02-25 2000-02-25 Helmholtz resonator

Country Status (1)

Country Link
DE (1) DE20003519U1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10232291A1 (en) * 2002-07-16 2004-02-05 Eads Deutschland Gmbh Active noise abatement appliance has housing containing chamber with opening in one wall to the side of gas flow, with deflector
EP1460243A1 (en) * 2003-03-20 2004-09-22 Peugeot Citroen Automobiles S.A. Acoustic silencing system
EP1760279A2 (en) * 2005-09-01 2007-03-07 J. Eberspächer GmbH & Co. KG Silencer for an exhaust system
DE102018004486A1 (en) 2018-06-03 2019-12-05 Gesellschaft für Akustikforschung Dresden mbH Device for damping and / or absorbing sound
DE102014114876B4 (en) 2013-10-15 2023-07-20 Hyundai Motor Company Structure of exhaust system for cylinder deactivation internal combustion engine
DE102014114190B4 (en) 2013-10-15 2023-08-17 Hyundai Motor Company Exhaust system structure for cylinder deactivation (CDA) internal combustion engine

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10232291A1 (en) * 2002-07-16 2004-02-05 Eads Deutschland Gmbh Active noise abatement appliance has housing containing chamber with opening in one wall to the side of gas flow, with deflector
DE10232291B4 (en) * 2002-07-16 2004-05-27 Eads Deutschland Gmbh Device and method for active noise control and engine for aircraft
US7273130B2 (en) 2002-07-16 2007-09-25 Eads Deutschland Gmbh Device and method for active soundproofing, and power unit for aeroplanes
EP1460243A1 (en) * 2003-03-20 2004-09-22 Peugeot Citroen Automobiles S.A. Acoustic silencing system
FR2852625A1 (en) * 2003-03-20 2004-09-24 Peugeot Citroen Automobiles Sa ACOUSTIC MITIGATION SYSTEM
EP1760279A2 (en) * 2005-09-01 2007-03-07 J. Eberspächer GmbH & Co. KG Silencer for an exhaust system
EP1760279A3 (en) * 2005-09-01 2009-03-11 J. Eberspächer GmbH & Co. KG Silencer for an exhaust system
DE102014114876B4 (en) 2013-10-15 2023-07-20 Hyundai Motor Company Structure of exhaust system for cylinder deactivation internal combustion engine
DE102014114190B4 (en) 2013-10-15 2023-08-17 Hyundai Motor Company Exhaust system structure for cylinder deactivation (CDA) internal combustion engine
DE102018004486A1 (en) 2018-06-03 2019-12-05 Gesellschaft für Akustikforschung Dresden mbH Device for damping and / or absorbing sound

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Legal Events

Date Code Title Description
R086 Non-binding declaration of licensing interest
R207 Utility model specification

Effective date: 20000713

R156 Lapse of ip right after 3 years

Effective date: 20030829