JP2008286187A - 溝付きシェブロン排出ノズル - Google Patents
溝付きシェブロン排出ノズル Download PDFInfo
- Publication number
- JP2008286187A JP2008286187A JP2008070616A JP2008070616A JP2008286187A JP 2008286187 A JP2008286187 A JP 2008286187A JP 2008070616 A JP2008070616 A JP 2008070616A JP 2008070616 A JP2008070616 A JP 2008070616A JP 2008286187 A JP2008286187 A JP 2008286187A
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- chevron
- ridge
- shell
- slot
- 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
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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
- F02K1/46—Nozzles having means for adding air to the jet or for augmenting the mixing region between the jet and the ambient air, e.g. for silencing
- F02K1/48—Corrugated nozzles
-
- 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
- F02K1/38—Introducing air inside the jet
- F02K1/386—Introducing air inside the jet mixing devices in the jet pipe, e.g. for mixing primary and secondary flow
-
- 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
- F05D2250/183—Two-dimensional patterned zigzag
-
- 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
- F05D2250/184—Two-dimensional patterned sinusoidal
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
【解決手段】本ノズル(18、20、52、54)は、シェブロン(28)の列で終端する溝付きシェル(24、26)を含む。本ノズル(18、20、52、54)は、シェル(24、26)の円周方向周りで半径方向に波形であり、かつ円周方向波形後端縁(30)を有する。
【選択図】 図2
Description
12 軸方向中心軸線
14 加圧空気
16 高温燃焼ガス
18、20、52、54 排出ノズル
22 内側カウル
24 外側シェル
26 内側シェル
28 三角形状シェブロン
30 円周方向波形後端縁
32 軸方向発散形スロット
34 シェブロン基部
36 シェブロン頂部
38 根元ノッチ部
40 尾根部
42 溝
44、48 排出ダクト
46、50 ノズル出口
56 基準ノズル
Claims (10)
- 円周方向波形後端縁(30)に沿ったそれぞれの発散形スロット(32)によって円周方向に間隔を置いて配置された三角形状シェブロン(28)の列に向かって後方に収束する同軸の外側及び内側シェル(24、26)を含み、
前記シェブロン(28)の各々が、前記スロット(32)から軸方向前方に延びる対応する溝(42)間で軸方向前方及び円周方向に延びる中心尾根部(40)を含む、
ガスタービンエンジン排出ノズル(18、20、52、54)。 - 前記シェブロン(28)の列が、前記シェル(24、26)の円周方向周りで円周方向及び半径方向の両方向に波形であり、
各シェブロン(28)が、前記発散形スロット(32)の周りで前記尾根部(40)から円周方向及び軸方向の両方向に前記波形後端縁(30)までその半径方向厚さが収束する、
請求項1記載のノズル。 - 前記内側シェル(26)が、前記シェブロンにおける出口(46)で終端する排出ダクト(44)を形成した滑らかな円形内面を含み、
前記外側シェル(24)が、該外側シェル(24)の外面に沿って軸方向後方に延びる前記尾根部(40)を含み、
前記溝(42)が、前記尾根部(40)間で軸方向後方に前記スロット(32)まで延びる、
請求項2記載のノズル。 - 前記溝(42)が、前記尾根部(40)に沿って軸方向後方に前記スロット(32)までその深さが増大する、請求項3記載のノズル。
- 前記溝(42)が、前記尾根部(40)に沿って軸方向後方に前記スロット(32)までほぼ一定の深さを有する、請求項3記載のノズル。
- 前記外側シェル(24)が、滑らかな円形外面を含み、
前記内側シェル(26)が、該内側シェル(26)の内面に沿って軸方向後方に延びる前記尾根部(40)を含み、
前記溝(42)が、前記尾根部(40)間で軸方向後方に前記スロット(32)まで延びて、前記シェブロン(28)における出口(50)で終端する排出ダクト(48)を形成する
請求項2記載のノズル。 - 前記溝(42)が、前記尾根部(40)に沿って軸方向後方に前記スロット(32)までその深さが増大する、請求項6記載のノズル。
- 前記溝(42)が、前記尾根部(40)に沿って軸方向後方に前記スロット(32)までほぼ一定の深さを有する、請求項6記載のノズル。
- 前記シェブロン(28)の各々が、前記シェル(24、26)の一方において該シェブロン(28)の前記尾根部(40)と前記後端縁(30)との間でほぼ平坦であり、
前記他方のシェル(26、24)が、円周方向にアーチ形であって、前記一方のシェルと共に半径方向突出三角形状部を形成する、
請求項2記載のノズル。 - 前記内側シェル(26)から半径方向内側に間隔を置いて配置されて、該内側シェル(26)と共に前記シェブロン(28)における出口(46、50)で終端する環状排出ダクト(44、48)を形成した内側カウル(20、22)をさらに含み、
前記環状排出ダクト(44、48)が、後方にその流れ面積が収束して前記シェブロン(28)における最小流れ面積のスロート部を形成し、かつ前記スロート部から後方にその流れ面積が発散する、
請求項2記載のノズル。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/751,174 US7963099B2 (en) | 2007-05-21 | 2007-05-21 | Fluted chevron exhaust nozzle |
US11/751,174 | 2007-05-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008286187A true JP2008286187A (ja) | 2008-11-27 |
JP5466371B2 JP5466371B2 (ja) | 2014-04-09 |
Family
ID=39400439
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008070616A Expired - Fee Related JP5466371B2 (ja) | 2007-05-21 | 2008-03-19 | 溝付きシェブロン排出ノズル |
Country Status (3)
Country | Link |
---|---|
US (1) | US7963099B2 (ja) |
EP (1) | EP1995441B1 (ja) |
JP (1) | JP5466371B2 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011525959A (ja) * | 2008-06-26 | 2011-09-29 | ゼネラル・エレクトリック・カンパニイ | 双対タブ排気ノズル |
JP2012154176A (ja) * | 2011-01-21 | 2012-08-16 | Japan Aerospace Exploration Agency | 空力騒音低減装置 |
JP2017198498A (ja) * | 2016-04-26 | 2017-11-02 | 株式会社Soken | 流量測定装置 |
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JP4830836B2 (ja) * | 2006-12-18 | 2011-12-07 | 株式会社Ihi | ジェット噴流排気ノズル及びジェットエンジン |
US7926285B2 (en) * | 2007-07-18 | 2011-04-19 | General Electric Company | Modular chevron exhaust nozzle |
US20100193605A1 (en) * | 2009-01-30 | 2010-08-05 | Michael Robert Johnson | Thermally balanced aero structures |
US20100192590A1 (en) * | 2009-01-30 | 2010-08-05 | Michael Robert Johnson | Thermally balanced materials |
US9964070B2 (en) * | 2009-06-12 | 2018-05-08 | The Boeing Company | Gas turbine engine nozzle including housing having scalloped root regions |
US8356468B2 (en) * | 2009-06-12 | 2013-01-22 | The Boeing Company | Gas turbine engine nozzle configurations |
US8635875B2 (en) | 2010-04-29 | 2014-01-28 | Pratt & Whitney Canada Corp. | Gas turbine engine exhaust mixer including circumferentially spaced-apart radial rows of tabs extending downstream on the radial walls, crests and troughs |
FR2986831A1 (fr) * | 2012-02-10 | 2013-08-16 | Snecma | Procede pour definir la forme d'une tuyere convergente-divergente d'une turbomachine et tuyere convergente-divergente correspondante. |
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FR3008739B1 (fr) * | 2013-07-18 | 2017-03-24 | Snecma | Tuyere d'une turbomachine equipee de chevrons a face interne non axi-symetrique. |
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US10371090B2 (en) | 2014-01-13 | 2019-08-06 | United Technologies Corporation | Variable area exhaust mixer for a gas turbine engine |
US10094332B2 (en) * | 2014-09-03 | 2018-10-09 | The Boeing Company | Core cowl for a turbofan engine |
FR3070186B1 (fr) * | 2017-08-21 | 2021-06-11 | Safran Aircraft Engines | Tuyere secondaire modifiee acoustique |
US11440671B2 (en) * | 2019-01-24 | 2022-09-13 | Amazon Technologies, Inc. | Adjustable motor fairings for aerial vehicles |
CN112502853B (zh) * | 2020-11-27 | 2021-11-02 | 中国商用飞机有限责任公司 | 喷管、配备该喷管的喷气发动机和喷气式飞机 |
US20220195960A1 (en) * | 2020-12-21 | 2022-06-23 | Rohr, Inc. | Gas turbine engine exhaust chevrons |
CN113944565B (zh) * | 2021-10-19 | 2022-06-28 | 中国科学院工程热物理研究所 | 一种用于改善振动特性的尾喷管结构 |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011525959A (ja) * | 2008-06-26 | 2011-09-29 | ゼネラル・エレクトリック・カンパニイ | 双対タブ排気ノズル |
JP2012154176A (ja) * | 2011-01-21 | 2012-08-16 | Japan Aerospace Exploration Agency | 空力騒音低減装置 |
JP2017198498A (ja) * | 2016-04-26 | 2017-11-02 | 株式会社Soken | 流量測定装置 |
Also Published As
Publication number | Publication date |
---|---|
US20090071164A1 (en) | 2009-03-19 |
EP1995441B1 (en) | 2019-01-23 |
US7963099B2 (en) | 2011-06-21 |
JP5466371B2 (ja) | 2014-04-09 |
EP1995441A2 (en) | 2008-11-26 |
EP1995441A3 (en) | 2011-03-09 |
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