FR2691828B1 - Dispositif de réduction du bruit par court-circuit acoustique. - Google Patents

Dispositif de réduction du bruit par court-circuit acoustique.

Info

Publication number
FR2691828B1
FR2691828B1 FR9306470A FR9306470A FR2691828B1 FR 2691828 B1 FR2691828 B1 FR 2691828B1 FR 9306470 A FR9306470 A FR 9306470A FR 9306470 A FR9306470 A FR 9306470A FR 2691828 B1 FR2691828 B1 FR 2691828B1
Authority
FR
France
Prior art keywords
short circuit
noise reduction
reduction device
acoustic short
acoustic
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
FR9306470A
Other languages
English (en)
French (fr)
Other versions
FR2691828A1 (fr
Inventor
Oskar Bschorr
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.)
Airbus Defence and Space GmbH
Original Assignee
Deutsche Aerospace 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 Deutsche Aerospace AG filed Critical Deutsche Aerospace AG
Publication of FR2691828A1 publication Critical patent/FR2691828A1/fr
Application granted granted Critical
Publication of FR2691828B1 publication Critical patent/FR2691828B1/fr
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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
FR9306470A 1992-05-29 1993-05-28 Dispositif de réduction du bruit par court-circuit acoustique. Expired - Fee Related FR2691828B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19924217767 DE4217767C1 (https=) 1992-05-29 1992-05-29

Publications (2)

Publication Number Publication Date
FR2691828A1 FR2691828A1 (fr) 1993-12-03
FR2691828B1 true FR2691828B1 (fr) 1995-04-21

Family

ID=6459981

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9306470A Expired - Fee Related FR2691828B1 (fr) 1992-05-29 1993-05-28 Dispositif de réduction du bruit par court-circuit acoustique.

Country Status (3)

Country Link
DE (1) DE4217767C1 (https=)
FR (1) FR2691828B1 (https=)
GB (1) GB2271387B (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10146121B4 (de) * 2001-09-19 2004-01-08 Ford Global Technologies, Inc., Dearborn Verfahren zur Bestimmung des Körperschall- und des Luftschallanteils eines Motorengeräusches

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB618224A (en) * 1947-03-18 1949-02-17 Bristol Aeroplane Co Ltd Improvements in or relating to apparatus for preventing or reducing the formation of ice on the air ducts of gas turbine engines
GB935119A (en) * 1960-12-05 1963-08-28 Rolls Royce Improvements relating to the silencing of gas turbine engines
GB1321073A (en) * 1970-06-18 1973-06-20 Secr Defence Acoustic attenuators
DE3020830A1 (de) * 1980-06-02 1981-12-10 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Koinzidenzschalldaempfer
FR2613773B1 (fr) * 1987-04-08 1990-11-30 Snecma Panneau acoustique pour garniture insonorisante et turboreacteur comportant une telle garniture
SE501995C2 (sv) * 1988-11-18 1995-07-10 Tord Goeran Kaarfalk Anordning för reducering av transmissionsljud
DE4012094A1 (de) * 1990-04-14 1991-10-17 Schottel Werft Vorrichtung zum schutz von unter wasser befindlichen koerpern gegen sonar-ortung

Also Published As

Publication number Publication date
GB9310653D0 (en) 1993-07-07
GB2271387B (en) 1995-08-16
FR2691828A1 (fr) 1993-12-03
GB2271387A (en) 1994-04-13
DE4217767C1 (https=) 1993-08-26

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Legal Events

Date Code Title Description
ST Notification of lapse