GB1183893A - Nozzles having Silencing Means - Google Patents

Nozzles having Silencing Means

Info

Publication number
GB1183893A
GB1183893A GB2639/68A GB263968A GB1183893A GB 1183893 A GB1183893 A GB 1183893A GB 2639/68 A GB2639/68 A GB 2639/68A GB 263968 A GB263968 A GB 263968A GB 1183893 A GB1183893 A GB 1183893A
Authority
GB
United Kingdom
Prior art keywords
centre
jets
jan
angularly spaced
manifolds
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
Application number
GB2639/68A
Inventor
Henri Auguste Bonneaud
Rene Gerard Hoch
Louis Francois Jumelle
Gerhard Richter
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
Societe Nationale dEtude et de Construction de Moteurs dAviation SNECMA
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 Societe Nationale dEtude et de Construction de Moteurs dAviation SNECMA, SNECMA SAS filed Critical Societe Nationale dEtude et de Construction de Moteurs dAviation SNECMA
Publication of GB1183893A publication Critical patent/GB1183893A/en
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
    • F02K1/28—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto using fluid jets to influence the jet flow
    • F02K1/34—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto using fluid jets to influence the jet flow for attenuating noise
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/60—Efficient propulsion technologies, e.g. for aircraft

Abstract

1,183,893. Jet propulsion nozzles. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. Jan. 17, 1968 [Jan. 18, 1967], No. 2639/68. Heading F1J. A nozzle defined by a casing 10 and a centrebody 11 is silenced by jets of gas from angularly spaced orifices at points 17, 17a on the surface of the centre-body 11 entering the main gas flow through the nozzle. The silencing jets are supplied from annular manifolds 20, 20a through angularly spaced convergent-divergent pipes 16 within the centre-body 11. The manifolds 20, 20a are themselves fed from a gaseous source through piping 15, 15a, 21 21a and valves 18, or, in a modification Fig. 2 (not shown), by mainstream gas flowing through an opening (22) at the upstream end of the centre-body.
GB2639/68A 1967-01-18 1968-01-17 Nozzles having Silencing Means Expired GB1183893A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR91659A FR1515198A (en) 1967-01-18 1967-01-18 Fluid jet silencers for ejection systems

Publications (1)

Publication Number Publication Date
GB1183893A true GB1183893A (en) 1970-03-11

Family

ID=8624059

Family Applications (2)

Application Number Title Priority Date Filing Date
GB2639/68A Expired GB1183893A (en) 1967-01-18 1968-01-17 Nozzles having Silencing Means
GB2638/68A Expired GB1141784A (en) 1967-01-18 1968-01-17 Nozzles capable of having a silencing effect

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB2638/68A Expired GB1141784A (en) 1967-01-18 1968-01-17 Nozzles capable of having a silencing effect

Country Status (2)

Country Link
FR (1) FR1515198A (en)
GB (2) GB1183893A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2123486A (en) * 1982-07-12 1984-02-01 Gen Electric Turbofan mixed flow exhaust system
FR2537211A1 (en) * 1982-12-03 1984-06-08 United Kingdom Government SILENT FOR HIGH SPEED GAS CURRENT
GB2207708A (en) * 1987-07-24 1989-02-08 Thomas Edward Friedrich Arrangement for supressing jet engine noise
EP1418331A2 (en) * 2002-11-09 2004-05-12 ROLLS-ROYCE plc Suppression of part of the noise from a gas turbine engine

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5706650A (en) * 1995-08-09 1998-01-13 United Technologies Corporation Vectoring nozzle using injected high pressure air
US7412832B2 (en) * 2004-03-26 2008-08-19 General Electric Company Method and apparatus for operating gas turbine engines
US9528468B2 (en) * 2009-10-28 2016-12-27 Ihi Corporation Noise reduction system
CA2779050C (en) * 2009-10-28 2014-10-07 Ihi Corporation Noise reduction system
FR2981134B1 (en) * 2011-10-06 2014-09-19 Snecma DEVICE WITH WALL WITH AT LEAST TWO OPENINGS DISCHARGING IN A GAS STREAM

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2123486A (en) * 1982-07-12 1984-02-01 Gen Electric Turbofan mixed flow exhaust system
FR2537211A1 (en) * 1982-12-03 1984-06-08 United Kingdom Government SILENT FOR HIGH SPEED GAS CURRENT
GB2207708A (en) * 1987-07-24 1989-02-08 Thomas Edward Friedrich Arrangement for supressing jet engine noise
US4934481A (en) * 1987-07-24 1990-06-19 Friedrich Thomas E Arrangement for suppressing jet engine noise
GB2207708B (en) * 1987-07-24 1991-11-20 Thomas Edward Friedrich Arrangement for supressing jet engine noise
EP1418331A2 (en) * 2002-11-09 2004-05-12 ROLLS-ROYCE plc Suppression of part of the noise from a gas turbine engine
EP1418331A3 (en) * 2002-11-09 2006-07-12 ROLLS-ROYCE plc Suppression of part of the noise from a gas turbine engine

Also Published As

Publication number Publication date
FR1515198A (en) 1968-03-01
GB1141784A (en) 1969-01-29

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Legal Events

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