FR2242570B1 - - Google Patents

Info

Publication number
FR2242570B1
FR2242570B1 FR7331582A FR7331582A FR2242570B1 FR 2242570 B1 FR2242570 B1 FR 2242570B1 FR 7331582 A FR7331582 A FR 7331582A FR 7331582 A FR7331582 A FR 7331582A FR 2242570 B1 FR2242570 B1 FR 2242570B1
Authority
FR
France
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
Application number
FR7331582A
Other languages
French (fr)
Other versions
FR2242570A1 (OSRAM
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.)
Safran Aircraft Engines SAS
Original Assignee
SNECMA SAS
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 SNECMA SAS filed Critical SNECMA SAS
Priority to FR7331582A priority Critical patent/FR2242570B1/fr
Priority to GB3420074A priority patent/GB1457789A/en
Priority to DE2441345A priority patent/DE2441345A1/de
Priority to US05/502,198 priority patent/US3968853A/en
Publication of FR2242570A1 publication Critical patent/FR2242570A1/fr
Application granted granted Critical
Publication of FR2242570B1 publication Critical patent/FR2242570B1/fr
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02K—JET-PROPULSION PLANTS
    • F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
    • F02K1/44—Nozzles having means, e.g. a shield, reducing sound radiation in a specified direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/10—Two-dimensional
    • F05D2250/18—Two-dimensional patterned
    • F05D2250/182—Two-dimensional patterned crenellated, notched

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
FR7331582A 1973-08-31 1973-08-31 Expired FR2242570B1 (OSRAM)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR7331582A FR2242570B1 (OSRAM) 1973-08-31 1973-08-31
GB3420074A GB1457789A (en) 1973-08-31 1974-08-02 Method of attenuating by mask effect the noise emitted by the jet nozzles of jet engines
DE2441345A DE2441345A1 (de) 1973-08-31 1974-08-29 Vorrichtung zum daempfen des von einer strahltriebwerkduese ausgehenden geraeusches
US05/502,198 US3968853A (en) 1973-08-31 1974-08-30 Notch attenuation device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7331582A FR2242570B1 (OSRAM) 1973-08-31 1973-08-31

Publications (2)

Publication Number Publication Date
FR2242570A1 FR2242570A1 (OSRAM) 1975-03-28
FR2242570B1 true FR2242570B1 (OSRAM) 1976-06-18

Family

ID=9124511

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7331582A Expired FR2242570B1 (OSRAM) 1973-08-31 1973-08-31

Country Status (4)

Country Link
US (1) US3968853A (OSRAM)
DE (1) DE2441345A1 (OSRAM)
FR (1) FR2242570B1 (OSRAM)
GB (1) GB1457789A (OSRAM)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4288984A (en) * 1978-09-19 1981-09-15 The Boeing Company Noise suppressing turbofan nozzles and method
US4280587A (en) * 1979-05-08 1981-07-28 The Boeing Company Noise-suppressing jet engine nozzles and method
US11319859B2 (en) * 2019-05-30 2022-05-03 Ford Global Technologies, Llc Noise attenuating exhaust tail pipe

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3033494A (en) * 1958-08-01 1962-05-08 United Aircraft Corp Jet wake noise intensity pattern control means
GB886201A (en) * 1959-06-01 1962-01-03 Rolls Royce Jet noise silencer for an aircraft
US3174282A (en) * 1963-04-19 1965-03-23 Ryan Aeronautical Co Asymmetrical jet nozzle noise suppressor
US3743185A (en) * 1970-11-26 1973-07-03 Secr Defence Noise suppressor for jet engines
DE2157960A1 (de) * 1970-11-30 1972-08-24 Secr Defence Brit Lärmdämpfer für Flugzeug-Strahltriebwerke

Also Published As

Publication number Publication date
FR2242570A1 (OSRAM) 1975-03-28
GB1457789A (en) 1976-12-08
US3968853A (en) 1976-07-13
DE2441345A1 (de) 1975-03-27

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Legal Events

Date Code Title Description
ST Notification of lapse