GB2271494B - Cavity resonator - Google Patents

Cavity resonator

Info

Publication number
GB2271494B
GB2271494B GB9317492A GB9317492A GB2271494B GB 2271494 B GB2271494 B GB 2271494B GB 9317492 A GB9317492 A GB 9317492A GB 9317492 A GB9317492 A GB 9317492A GB 2271494 B GB2271494 B GB 2271494B
Authority
GB
United Kingdom
Prior art keywords
cavity resonator
resonator
cavity
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 - Fee Related
Application number
GB9317492A
Other versions
GB2271494A (en
GB9317492D0 (en
Inventor
Oskar Bschorr
Roland Walcher
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.)
Daimler Benz AG
Original Assignee
Daimler Benz 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 Daimler Benz AG filed Critical Daimler Benz AG
Publication of GB9317492D0 publication Critical patent/GB9317492D0/en
Publication of GB2271494A publication Critical patent/GB2271494A/en
Application granted granted Critical
Publication of GB2271494B publication Critical patent/GB2271494B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Exhaust Silencers (AREA)
GB9317492A 1992-08-26 1993-08-23 Cavity resonator Expired - Fee Related GB2271494B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19924228356 DE4228356C2 (en) 1992-08-26 1992-08-26 Cavity resonator for noise reduction

Publications (3)

Publication Number Publication Date
GB9317492D0 GB9317492D0 (en) 1993-10-06
GB2271494A GB2271494A (en) 1994-04-13
GB2271494B true GB2271494B (en) 1996-02-14

Family

ID=6466470

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9317492A Expired - Fee Related GB2271494B (en) 1992-08-26 1993-08-23 Cavity resonator

Country Status (3)

Country Link
DE (1) DE4228356C2 (en)
FR (1) FR2696268A1 (en)
GB (1) GB2271494B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4446080B4 (en) * 1994-12-22 2004-03-18 Bayerische Motoren Werke Ag Sound absorption system for motor vehicles
FR2750527B1 (en) † 1996-06-28 1998-08-21 Bertin & Cie NOISE ABSORPTION STRUCTURES AND WALLS MADE OF SUCH STRUCTURES
DE10002984C1 (en) * 2000-01-24 2001-08-09 Daimler Chrysler Ag Acoustic absorber and method for sound absorption
SE0003350D0 (en) * 2000-09-18 2000-09-18 Flaekt Ab Silencer
DE10232291B4 (en) 2002-07-16 2004-05-27 Eads Deutschland Gmbh Device and method for active noise control and engine for aircraft
GB2392762A (en) 2002-09-06 2004-03-10 Schlumberger Holdings Mud pump noise attenuation in a borehole telemetry system
JP4251027B2 (en) 2003-07-14 2009-04-08 トヨタ紡織株式会社 Silencer
DE10339811B4 (en) * 2003-08-27 2005-09-22 J. Eberspächer GmbH & Co. KG Resonator for reducing airborne sound
DE102004022972A1 (en) * 2004-05-10 2005-12-08 J. Eberspächer GmbH & Co. KG Resonator for exhaust-gas system, has control unit adjustable relative to neck such that flow through cross section of resonator is varied and effective length of resonator is varied for adjusting resonance frequency of the resonator
DE102008030082A1 (en) * 2008-06-25 2009-12-31 Bomag Gmbh Construction machine i.e. vibrating roller, has acoustic insulation-hollow space connected with cabin by acoustic insulation opening, where cross section of insulation opening is changeable by adjusting device
DE102012024162B4 (en) * 2012-12-04 2019-05-29 Bundesrepublik Deutschland, vertreten durch das Bundesministerium für Wirtschaft und Technologie, dieses vertreten durch den Präsidenten der Physikalisch-Technischen Bundesanstalt Helmholtz dampers and method for fitting a Helmholtz damper
DE102019215650A1 (en) * 2019-10-11 2021-04-15 Volkswagen Aktiengesellschaft Cavity resonator

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB914272A (en) * 1960-06-11 1963-01-02 Lucas Industries Ltd Vehicle direction indicator systems
EP0119634A2 (en) * 1983-03-22 1984-09-26 Nippondenso Co., Ltd. Resonator for internal combustion engines
US4539947A (en) * 1982-12-09 1985-09-10 Nippondenso Co., Ltd. Resonator for internal combustion engines

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1241787A (en) * 1959-08-07 1960-09-23 Citroen Sa Andre Variable impedance acoustic resonator
US3866001A (en) * 1974-03-04 1975-02-11 Junger Miguel C Structural block with septum
DE3300499A1 (en) * 1983-01-08 1984-07-12 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München Sound absorber for passages through which liquids flow
JPS60182348A (en) * 1984-02-29 1985-09-17 Hino Motors Ltd Suction noise reducer for engine
JPS6235008A (en) * 1985-08-08 1987-02-16 Agency Of Ind Science & Technol Temperature control type adaptive noise suppressor
DE3812224A1 (en) * 1988-04-13 1989-10-26 Messerschmitt Boelkow Blohm DEVICE FOR DAMPING AIR AND BODY SOUND VIBRATIONS
JP2562054B2 (en) * 1989-05-29 1996-12-11 本田技研工業株式会社 Air intake noise reduction device for internal combustion engine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB914272A (en) * 1960-06-11 1963-01-02 Lucas Industries Ltd Vehicle direction indicator systems
US4539947A (en) * 1982-12-09 1985-09-10 Nippondenso Co., Ltd. Resonator for internal combustion engines
EP0119634A2 (en) * 1983-03-22 1984-09-26 Nippondenso Co., Ltd. Resonator for internal combustion engines

Also Published As

Publication number Publication date
FR2696268A1 (en) 1994-04-01
DE4228356C2 (en) 1995-10-19
GB2271494A (en) 1994-04-13
GB9317492D0 (en) 1993-10-06
DE4228356A1 (en) 1994-03-03

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19970823