JP2006505730A - ターボコンプレッサ用再循環構造 - Google Patents
ターボコンプレッサ用再循環構造 Download PDFInfo
- Publication number
- JP2006505730A JP2006505730A JP2003571571A JP2003571571A JP2006505730A JP 2006505730 A JP2006505730 A JP 2006505730A JP 2003571571 A JP2003571571 A JP 2003571571A JP 2003571571 A JP2003571571 A JP 2003571571A JP 2006505730 A JP2006505730 A JP 2006505730A
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- Japan
- Prior art keywords
- recirculation structure
- recirculation
- annular chamber
- structure according
- blade
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/68—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers
- F04D29/681—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps
- F04D29/685—Inducing localised fluid recirculation in the stator-rotor interface
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
- F01D11/08—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/14—Form or construction
- F01D5/141—Shape, i.e. outer, aerodynamic form
- F01D5/145—Means for influencing boundary layers or secondary circulations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/541—Specially adapted for elastic fluid pumps
- F04D29/545—Ducts
- F04D29/547—Ducts having a special shape in order to influence fluid flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/02—Surge control
- F04D27/0207—Surge control by bleeding, bypassing or recycling fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/321—Rotors specially for elastic fluids for axial flow pumps for axial flow compressors
-
- 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
- F05D2220/00—Application
- F05D2220/40—Application in turbochargers
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S415/00—Rotary kinetic fluid motors or pumps
- Y10S415/914—Device to control boundary layer
Abstract
主流ダクトの輪郭に隣接する環状チャンバの側面は、その軸方向長さおよびその周囲全体にわたって開口しており、案内要素の自由端部は、主流ダクトの輪郭上に、またはそれに近接して存在する。
Description
からである。羽根先端同士の間の羽根回転数で循環する、エネルギーの減少した「空気粒子」が、主流へと再循環し、それによって、そのエネルギーが増大すると、羽根端部領域の流れが、再び安定化する。流れの乱れ(擾乱)は、一般的に、段の周囲全体に均一に発生することはないので、実質的に軸方向の再循環に加えて、流れを周囲方向に平衡させることも可能であるはずである。公知のケーシング・トリートメントの主な欠点は、サージ限界を上昇させるものの、同時にコンプレッサの効率を縮小してしまうということである。
Claims (13)
- ターボチャージャ用再循環構造であって、
羽根輪の羽根自由端部の領域にコンプレッサの軸と同軸に配置された環状チャンバを有し、前記環状チャンバの軸中心は前記羽根自由端部の軸中心上流に位置づけられ、
前記環状チャンバは、環状間隙を主流ダクトの輪郭に径方向に隣接してなると共に複数の案内要素を有し、
前記案内要素は、その周囲全体に亘って配設された環状チャンバ内に配置され、さらに、環状チャンバの軸方向後方領域における再循環流れの流入に対して有利な方法で、かつ、環状チャンバの軸方向前方領域における再循環流れの流出が下流の羽根輪に対して所定の方向に所定の渦を伴って生じるような方法で、配置および形成され、
前記環状チャンバの前方および/または後方領域において、案内要素は、周方向の流路のための凹部を有する再循環構造において、
主流ダクト(9,10)の輪郭(11,12)に隣接してなる環状チャンバ(29〜32)は、その軸方向長さに亘り主流ダクト(9,10)に対して開口し、すなわち、再循環流れの流入から流出に至るまで、その全周に亘り、案内要素(37〜40)の自由端部(41から44)が存在し、または主流ダクト(9,10)の輪郭(11,12)に近接してなることを特徴とする再循環構造。 - 1つまたは複数の回転翼羽根輪(20、23、24)の領域で、1つまたは複数の点でケーシングに取り付けられ、即ち静止し、および/または、1つまたは複数の案内羽根輪(15)の領域で、1つまたは複数の点でハブに取り付けられ、即ち回転することを特徴とする、請求項1に記載の再循環構造。
- 軸流タイプ、混流タイプ、または半径流タイプの、単段式または多段式ターボチャージャに配置されることを特徴とする、請求項1または2に記載の再循環構造。
- 主流ダクト(9)の輪郭(11)上の端部(35、36)から、環状チャンバ(29)の軸方向前方壁(33)および軸方向後方壁(34)が、同一または異なった角度αで、上流方向、即ち斜め前方に傾斜することを特徴とする、請求項1ないし3のいずれか一項に記載の再循環構造。
- 環状チャンバの軸方向前方壁および軸方向後方壁の、半径方向からの傾斜角度αが、30°から60°の範囲の値を有することを特徴とする、請求項4に記載の再循環構造。
- 案内要素(37〜40)が、板状の、一定した厚みを備えた、平らなまたは湾曲した構成であり、または、所定のプロフィールの断面を有する、3次元の曲線を有した、変化する厚みを備えた、羽根状の構成であることを特徴とする、請求項1ないし5のいずれか一項に記載の再循環構造。
- 案内要素(37〜40)が、(軸方向から見て)周方向で径方向に対して傾斜し、または周方向に湾曲し、傾斜した場合または湾曲した場合の角度βは、環状チャンバ(29〜32)内への再循環流れの流入を容易に、即ち促進するように選択されることを特徴とする、請求項1ないし6のいずれか一項に記載の再循環構造。
- 再循環構造(1〜4)の内部において、案内要素(37〜40)の総体積に対する総流量体積の選択比率が、可能な限り大きく、即ち、案内要素(37〜40)が、可能な限り薄壁であり、または細くプロフィーリングされていることを特徴とする、請求項1ないし7のいずれか一項に記載の再循環構造。
- 羽根の自由端部の領域内に案内要素が軸方向に延びており、案内要素(40)の自由端部(44)が、少なくとも羽根自由端部(28)の領域で、半径方向に充分後退して設定され、それによって、ターボチャージャの通常作動時に、羽根自由端部(28)と案内要素(40)の間で接触が起こらないようになることを特徴とする、請求項1ないし8のいずれか一項に記載の再循環構造。
- 案内要素(37〜40)が、スチール、ニッケル系合金、またはコバルト系合金などの金属、アルミニウムなどの軽金属、あるいは熱可塑性プラスチック、熱硬化性プラスチック、またはエラストマーなどのプラスチック材料から構成されることを特徴とする、請求項1ないし9のいずれか一項に記載の再循環構造。
- 案内要素(37〜40)の自由端部(41〜44)が、軽量金属またはプラスチック材料から成る場合、羽根自由端部(25〜28)の領域内に延在し、接触が可能であることを特徴とする、請求項10に記載の再循環構造。
- 請求項1から11のいずれか一項に記載の再循環構造を、少なくとも1つ有するターボチャージャを備える航空機用エンジン。
- 請求項1から11のいずれか一項に記載の再循環構造を、少なくとも1つ有するターボチャージャを備える静止ガス・タービン。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ZA200201688 | 2002-02-28 | ||
DE10238837 | 2002-08-23 | ||
PCT/DE2003/000623 WO2003072910A1 (de) | 2002-02-28 | 2003-02-26 | Rezirkulationsstruktur für turboverdichter |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006505730A true JP2006505730A (ja) | 2006-02-16 |
JP4527403B2 JP4527403B2 (ja) | 2010-08-18 |
Family
ID=27766709
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003571571A Expired - Fee Related JP4527403B2 (ja) | 2002-02-28 | 2003-02-26 | ターボコンプレッサ用再循環構造 |
Country Status (11)
Country | Link |
---|---|
US (1) | US6935833B2 (ja) |
EP (1) | EP1478828B1 (ja) |
JP (1) | JP4527403B2 (ja) |
CN (1) | CN100395432C (ja) |
AT (1) | ATE348943T1 (ja) |
AU (1) | AU2003222718A1 (ja) |
CA (1) | CA2495186C (ja) |
DE (2) | DE50306028D1 (ja) |
RU (1) | RU2293221C2 (ja) |
UA (1) | UA76596C2 (ja) |
WO (1) | WO2003072910A1 (ja) |
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CN109209980B (zh) * | 2017-06-30 | 2020-06-05 | 中国航发商用航空发动机有限责任公司 | 一种用于轴流压气机的导流板 |
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US10683076B2 (en) | 2017-10-31 | 2020-06-16 | Coflow Jet, LLC | Fluid systems that include a co-flow jet |
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DE102018203304A1 (de) | 2018-03-06 | 2019-09-12 | MTU Aero Engines AG | Gasturbinenverdichter |
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2003
- 2003-02-26 EP EP03718608A patent/EP1478828B1/de not_active Expired - Lifetime
- 2003-02-26 CN CNB038075032A patent/CN100395432C/zh not_active Expired - Fee Related
- 2003-02-26 UA UA20040907814A patent/UA76596C2/uk unknown
- 2003-02-26 AT AT03718608T patent/ATE348943T1/de not_active IP Right Cessation
- 2003-02-26 CA CA2495186A patent/CA2495186C/en not_active Expired - Fee Related
- 2003-02-26 AU AU2003222718A patent/AU2003222718A1/en not_active Abandoned
- 2003-02-26 DE DE50306028T patent/DE50306028D1/de not_active Expired - Lifetime
- 2003-02-26 RU RU2004129277/06A patent/RU2293221C2/ru not_active IP Right Cessation
- 2003-02-26 US US10/473,152 patent/US6935833B2/en not_active Expired - Lifetime
- 2003-02-26 DE DE10390754T patent/DE10390754D2/de not_active Expired - Fee Related
- 2003-02-26 JP JP2003571571A patent/JP4527403B2/ja not_active Expired - Fee Related
- 2003-02-26 WO PCT/DE2003/000623 patent/WO2003072910A1/de active IP Right Grant
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JPS6331293U (ja) * | 1986-08-13 | 1988-02-29 | ||
JPH05340395A (ja) * | 1992-06-12 | 1993-12-21 | Mitsubishi Heavy Ind Ltd | 軸流回転機械 |
JPH08232605A (ja) * | 1994-12-29 | 1996-09-10 | United Technol Corp <Utc> | 軸流ガスタービンエンジン用チップシュラウド組立体 |
JPH09291897A (ja) * | 1996-04-26 | 1997-11-11 | Toshiba Corp | 軸流圧縮機 |
JP2001263296A (ja) * | 2000-03-17 | 2001-09-26 | Hitachi Ltd | ターボ機械 |
Also Published As
Publication number | Publication date |
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CA2495186A1 (en) | 2003-09-04 |
CN100395432C (zh) | 2008-06-18 |
CN1646790A (zh) | 2005-07-27 |
EP1478828B1 (de) | 2006-12-20 |
RU2293221C2 (ru) | 2007-02-10 |
US20040156714A1 (en) | 2004-08-12 |
ATE348943T1 (de) | 2007-01-15 |
RU2004129277A (ru) | 2005-08-27 |
DE50306028D1 (de) | 2007-02-01 |
AU2003222718A1 (en) | 2003-09-09 |
UA76596C2 (uk) | 2006-08-15 |
EP1478828A1 (de) | 2004-11-24 |
WO2003072910A1 (de) | 2003-09-04 |
DE10390754D2 (de) | 2005-05-12 |
CA2495186C (en) | 2010-04-27 |
US6935833B2 (en) | 2005-08-30 |
JP4527403B2 (ja) | 2010-08-18 |
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