FR2367660A1 - Application du dephasage des ondes sonores - Google Patents
Application du dephasage des ondes sonoresInfo
- Publication number
- FR2367660A1 FR2367660A1 FR7632663A FR7632663A FR2367660A1 FR 2367660 A1 FR2367660 A1 FR 2367660A1 FR 7632663 A FR7632663 A FR 7632663A FR 7632663 A FR7632663 A FR 7632663A FR 2367660 A1 FR2367660 A1 FR 2367660A1
- Authority
- FR
- France
- Prior art keywords
- sound waves
- silencing
- phase
- jet aircraft
- exactly out
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D33/00—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for
- B64D33/04—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for of exhaust outlets or jet pipes
- B64D33/06—Silencing exhaust or propulsion jets
-
- 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
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
Abstract
Dispositif permettant d'atténuer ou de supprimer les bruits aéronautiques. Il comprend le déphasage des ondes sonores, infra et ultra sonores. Ce déphasage étant obtenu par la mise en route successive des organes propulseurs de l'aéronef considéré. L'invention peut être utilisée pour la lutte contre les bruits aéronautiques.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7632663A FR2367660A1 (fr) | 1976-10-14 | 1976-10-14 | Application du dephasage des ondes sonores |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7632663A FR2367660A1 (fr) | 1976-10-14 | 1976-10-14 | Application du dephasage des ondes sonores |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2367660A1 true FR2367660A1 (fr) | 1978-05-12 |
FR2367660B3 FR2367660B3 (fr) | 1979-07-13 |
Family
ID=9179348
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7632663A Granted FR2367660A1 (fr) | 1976-10-14 | 1976-10-14 | Application du dephasage des ondes sonores |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2367660A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2586130A1 (fr) * | 1985-08-09 | 1987-02-13 | Gen Electric | Reduction du bruit des helices d'un avion |
EP0313944A1 (fr) * | 1987-10-20 | 1989-05-03 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Méthode pour la réduction du bruit de survol pour avions munis d'une hélice entraînée par un moteur à pistons |
-
1976
- 1976-10-14 FR FR7632663A patent/FR2367660A1/fr active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2586130A1 (fr) * | 1985-08-09 | 1987-02-13 | Gen Electric | Reduction du bruit des helices d'un avion |
EP0313944A1 (fr) * | 1987-10-20 | 1989-05-03 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Méthode pour la réduction du bruit de survol pour avions munis d'une hélice entraînée par un moteur à pistons |
Also Published As
Publication number | Publication date |
---|---|
FR2367660B3 (fr) | 1979-07-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |