ATE247324T1 - CLEANABLE SILENCER FOR LOW FREQUENCIES - Google Patents

CLEANABLE SILENCER FOR LOW FREQUENCIES

Info

Publication number
ATE247324T1
ATE247324T1 AT97104736T AT97104736T ATE247324T1 AT E247324 T1 ATE247324 T1 AT E247324T1 AT 97104736 T AT97104736 T AT 97104736T AT 97104736 T AT97104736 T AT 97104736T AT E247324 T1 ATE247324 T1 AT E247324T1
Authority
AT
Austria
Prior art keywords
chambers
cleanable
silencer
low frequencies
channel
Prior art date
Application number
AT97104736T
Other languages
German (de)
Inventor
Helmut Dr Prof Fuchs
Peter Dipl-Ing Brandstaett
Markus Dipl-Ing Heizmann
Dietmar Dr Eckoldt
Norbert Rambausek
Original Assignee
Fraunhofer Ges Forschung
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 Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Application granted granted Critical
Publication of ATE247324T1 publication Critical patent/ATE247324T1/en

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)
  • Exhaust Silencers (AREA)
  • Cleaning In General (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
  • Building Environments (AREA)

Abstract

The channel (1) contains perforated pieces (3) of different lengths. These are connected with chambers (4) outside the channel which form sound absorbers. The channels and or pieces are made of sheet metal, plastics, concrete or brick. The chambers can be cleaned periodically or continuously by fixed or movable nozzles (9). The chambers are connected with pipes (8) for cleaning agent via valves or other adjustments (7).
AT97104736T 1996-03-29 1997-03-20 CLEANABLE SILENCER FOR LOW FREQUENCIES ATE247324T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19612572A DE19612572A1 (en) 1996-03-29 1996-03-29 Cleanable silencer for low frequencies

Publications (1)

Publication Number Publication Date
ATE247324T1 true ATE247324T1 (en) 2003-08-15

Family

ID=7789874

Family Applications (1)

Application Number Title Priority Date Filing Date
AT97104736T ATE247324T1 (en) 1996-03-29 1997-03-20 CLEANABLE SILENCER FOR LOW FREQUENCIES

Country Status (3)

Country Link
EP (1) EP0798694B1 (en)
AT (1) ATE247324T1 (en)
DE (2) DE19612572A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9426078D0 (en) † 1994-12-23 1995-02-22 Cadbury Schweppes Plc Process for manufacture of reduced fat chocolate
DE19861018C2 (en) 1998-12-15 2001-06-13 Fraunhofer Ges Forschung Controlled acoustic waveguide for sound absorption
DE102005014419B3 (en) * 2005-03-24 2006-08-03 Studt & Co (Gmbh & Co) Device for sound proofing of flowing, gaseous media has partition wall, which is adjustably formed for fixing of different volume areas in the body

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE580923C (en) * 1930-11-05 1933-07-19 Gabriel Becker Muffler for internal combustion engines through acoustic filters
FR873027A (en) * 1940-07-29 1942-06-26 Eberspaecher J Device for damping noise in pipes
DE1476629A1 (en) * 1963-03-22 1969-07-10 Walker Manufact Company Exhaust and sound insulation system for motor vehicles and the like.
US3776364A (en) * 1972-04-28 1973-12-04 Donaldson Co Inc Noise reduction apparatus and method
DE2821069B1 (en) * 1978-05-13 1979-06-28 Kaefer Isoliertechnik Silencer for exhaust air from industrial plants
DE3807680A1 (en) * 1988-03-09 1989-09-21 Jehle Norbert Silencer not sensitive to soiling
DE9400428U1 (en) * 1994-01-14 1994-04-07 Heinrich Gillet Gmbh & Co Kg, 67480 Edenkoben Device for reducing resonance effects in pipes

Also Published As

Publication number Publication date
EP0798694A3 (en) 2000-03-01
EP0798694A2 (en) 1997-10-01
DE19612572A1 (en) 1997-10-02
EP0798694B1 (en) 2003-08-13
DE59710558D1 (en) 2003-09-18

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