JP2009047411A - ターボ機械ディフューザ - Google Patents
ターボ機械ディフューザ Download PDFInfo
- Publication number
- JP2009047411A JP2009047411A JP2008206652A JP2008206652A JP2009047411A JP 2009047411 A JP2009047411 A JP 2009047411A JP 2008206652 A JP2008206652 A JP 2008206652A JP 2008206652 A JP2008206652 A JP 2008206652A JP 2009047411 A JP2009047411 A JP 2009047411A
- Authority
- JP
- Japan
- Prior art keywords
- diffuser
- turbomachine
- flow path
- axis
- center
- 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
- 238000002347 injection Methods 0.000 claims abstract description 48
- 239000007924 injection Substances 0.000 claims abstract description 48
- 238000002485 combustion reaction Methods 0.000 claims abstract description 30
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 17
- 238000009792 diffusion process Methods 0.000 claims abstract description 12
- 239000000243 solution Substances 0.000 abstract description 2
- 239000000446 fuel Substances 0.000 description 6
- 230000001154 acute effect Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000001627 detrimental effect Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/04—Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor
- F02C3/08—Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor the compressor comprising at least one radial stage
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/14—Gas-turbine plants characterised by the use of combustion products as the working fluid characterised by the arrangement of the combustion chamber in the plant
-
- 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
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
- F04D29/444—Bladed diffusers
-
- 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
- F05D2250/70—Shape
- F05D2250/71—Shape curved
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
【解決手段】ターボ機械は、噴射オリフィス(44)を備える環状の燃焼チャンバ(40)と、遠心下流段を有する遠心コンプレッサ(10)と、環状のディフューザ(20)とを備える。ディフューザ(20)は、コンプレッサの吐出口に接続された拡散路(22)を有して半径方向に配向した上流部(21)と、肘形状の中間部(24)と、一連の整流ベーン(26)を備えてターボ機械の軸(A)に対して傾斜した下流部(25)とを備える。ターボ機械の軸(A)を含んで上記噴射オリフィス(44)の1つの中心(C)を通る断面において、整流ベーン(26)の後縁における流路の中央(O)と上記中心(C)との間の流線(L)に沿った曲線の横軸距離は、上記流路の高さ(h)の3倍以上である。
【選択図】図1
Description
・ターボ機械を設計する際に、ディフューザからの出口と噴射システムとの間での大きな圧力低下は、空気と燃料との混合及び燃焼を確実にするために十分な噴射システムを通過する際の圧力低下を一定に保つように、ディフューザからの出口とチャンバの出口との間のモジュールの圧力低下の全体的な増加によって補正される必要がある。このモジュールの圧力低下の増加は、燃料消費量の増加をもたらす。
・チャンバの外側迂回区域と内側迂回区域との間のガス供給は、非常に非対称的であり(主要及び希釈ガス噴流は、内部よりも外部で貫通性がある)、チャンバからの出口での温度分布を制御するのをより困難とする。
・内側迂回区域への不十分なガス供給は、燃焼チャンバの内壁を冷却するための装置内でのガス流れ速度の低減を招き、その結果、対流熱交換係数を低減し、したがって、この冷却の全体的な効率を低減する。
・内側迂回区域への不十分なガス供給は、超過圧力比の低減を招き、チャンバから下流に位置したタービンノズルの冷却効率を減少させる。
12 インペラ
14 可動ブレード
20 ディフューザ
21 上流部
22 拡散路
23 ベーン
24 中間部
25 下流部
26 整流ベーン
30 空間
32 外側ケーシング
34 内側ケーシング
40 燃焼チャンバ
41 チャンバ端壁
42 内側壁
43 外側壁
44 噴射オリフィス
45 噴射システム
46 燃料供給パイプ
A ターボジェットの回転軸
B 鋭角
C 噴射オリフィスの中心
h 流路の高さ
L 流線
O 流路の中央
R 最大半径
r 最小半径
X 流路の平均軸
Claims (2)
- 噴射システム(45)が内部に取り付けられた噴射オリフィス(44)を有するチャンバ端壁(41)を備える環状の燃焼チャンバ(40)と、
遠心下流段を有するコンプレッサ(10)と、
コンプレッサ(10)から出るガスの流れを拡散するのを可能とし、前記ガスの流れを前記噴射システムの方に導く環状のディフューザ(20)とを備えるターボ機械であって、
ディフューザが、コンプレッサの吐出口に接続された拡散路(22)を有する半径方向に配向した上流部(21)と、肘形状の中間部(24)と、円状に離隔された一連の整流ベーン(26)を備える下流部(25)とを備え、下流部(25)が、ターボ機械の軸(A)を含む断面において、ディフューザ(20)の下流部(25)からの出口での流路の平均軸(X)がチャンバ端壁(41)の最大半径(R)と最小半径(r)との間でチャンバ端壁(41)を通るように、ターボ機械の軸(A)に対して燃焼チャンバの方に傾斜しており、前記ターボ機械は
ターボ機械の軸(A)を含んで前記噴射オリフィス(44)の1つの中心(C)を通る断面において、整流ベーン(26)の後縁における流路の中央(O)と前記中心(C)との間の流線(L)に沿った曲線の横軸距離が、整流ベーン(26)の後縁における前記流路の高さ(h)の3倍以上であり、整流ベーン(26)の枚数が、噴射システム(45)の個数の少なくとも4倍多いことを特徴とする、ターボ機械。 - ターボ機械の軸(A)を含んで前記噴射オリフィス(44)の1つの中心(C)を通る断面において、整流ベーン(26)の後縁における流路の中央(O)と前記中心(C)との間の流線(L)に沿った曲線の横軸距離が、整流ベーン(26)の後縁における前記流路の高さ(h)の9倍以下である、請求項1に記載のターボ機械。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0757050A FR2920032B1 (fr) | 2007-08-13 | 2007-08-13 | Diffuseur d'une turbomachine |
FR0757050 | 2007-08-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009047411A true JP2009047411A (ja) | 2009-03-05 |
JP5279400B2 JP5279400B2 (ja) | 2013-09-04 |
Family
ID=39365894
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008206652A Active JP5279400B2 (ja) | 2007-08-13 | 2008-08-11 | ターボ機械ディフューザ |
Country Status (7)
Country | Link |
---|---|
US (1) | US8047777B2 (ja) |
EP (1) | EP2071152B1 (ja) |
JP (1) | JP5279400B2 (ja) |
CN (1) | CN101368512B (ja) |
CA (1) | CA2638817C (ja) |
FR (1) | FR2920032B1 (ja) |
RU (1) | RU2485356C2 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017520739A (ja) * | 2014-04-09 | 2017-07-27 | サフラン・ヘリコプター・エンジンズ | 燃焼チャンバに関するディフューザの方位角設定を含む航空機エンジン |
JP2017211165A (ja) * | 2016-05-27 | 2017-11-30 | Ysec株式会社 | ガスタービンエンジン |
JP2020084908A (ja) * | 2018-11-28 | 2020-06-04 | 株式会社Ihi | 空気供給装置 |
Families Citing this family (18)
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FR2922629B1 (fr) * | 2007-10-22 | 2009-12-25 | Snecma | Chambre de combustion a dilution optimisee et turbomachine en etant munie |
FR2927951B1 (fr) * | 2008-02-27 | 2011-08-19 | Snecma | Ensemble diffuseur-redresseur pour une turbomachine |
US8133017B2 (en) * | 2009-03-19 | 2012-03-13 | General Electric Company | Compressor diffuser |
US8381526B2 (en) * | 2010-02-15 | 2013-02-26 | General Electric Company | Systems and methods of providing high pressure air to a head end of a combustor |
US9476355B2 (en) * | 2012-02-29 | 2016-10-25 | Siemens Energy, Inc. | Mid-section of a can-annular gas turbine engine with a radial air flow discharged from the compressor section |
US10422345B2 (en) | 2013-12-05 | 2019-09-24 | General Electric Company | Centrifugal compressor curved diffusing passage portion |
US9631814B1 (en) * | 2014-01-23 | 2017-04-25 | Honeywell International Inc. | Engine assemblies and methods with diffuser vane count and fuel injection assembly count relationships |
CN105089909B (zh) * | 2014-05-23 | 2018-05-29 | 哈尔滨工大金涛科技股份有限公司 | 一种燃气动力装置 |
US9509152B2 (en) | 2014-08-07 | 2016-11-29 | Motorola Solutions, Inc. | Method and apparatus for self-heating of a battery from below an operating temperature |
EP2990662B1 (en) | 2014-08-28 | 2017-06-14 | Nuovo Pignone S.r.l. | Centrifugal compressors with integrated intercooling |
US20170044979A1 (en) * | 2015-08-14 | 2017-02-16 | United Technologies Corporation | Pre-diffuser with high cant angle |
DE102015219556A1 (de) | 2015-10-08 | 2017-04-13 | Rolls-Royce Deutschland Ltd & Co Kg | Diffusor für Radialverdichter, Radialverdichter und Turbomaschine mit Radialverdichter |
CN107061104A (zh) * | 2017-06-12 | 2017-08-18 | 罗雪睿 | 一种双曲面尖齿状叶片水轮机转轮 |
CN109424370B (zh) * | 2017-08-21 | 2022-08-09 | 赛峰飞机发动机公司 | 用于收敛-发散型次级喷嘴的加热*** |
US11098730B2 (en) | 2019-04-12 | 2021-08-24 | Rolls-Royce Corporation | Deswirler assembly for a centrifugal compressor |
US11441516B2 (en) | 2020-07-14 | 2022-09-13 | Rolls-Royce North American Technologies Inc. | Centrifugal compressor assembly for a gas turbine engine with deswirler having sealing features |
US11286952B2 (en) | 2020-07-14 | 2022-03-29 | Rolls-Royce Corporation | Diffusion system configured for use with centrifugal compressor |
US11578654B2 (en) | 2020-07-29 | 2023-02-14 | Rolls-Royce North American Technologies Inc. | Centrifical compressor assembly for a gas turbine engine |
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US20070183890A1 (en) * | 2006-02-09 | 2007-08-09 | Honeywell International, Inc. | Leaned deswirl vanes behind a centrifugal compressor in a gas turbine engine |
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-
2007
- 2007-08-13 FR FR0757050A patent/FR2920032B1/fr not_active Expired - Fee Related
-
2008
- 2008-08-11 CA CA2638817A patent/CA2638817C/fr active Active
- 2008-08-11 JP JP2008206652A patent/JP5279400B2/ja active Active
- 2008-08-11 EP EP08162167.4A patent/EP2071152B1/fr active Active
- 2008-08-12 US US12/190,105 patent/US8047777B2/en active Active
- 2008-08-12 RU RU2008133234/06A patent/RU2485356C2/ru active
- 2008-08-13 CN CN2008101308103A patent/CN101368512B/zh active Active
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US20070183890A1 (en) * | 2006-02-09 | 2007-08-09 | Honeywell International, Inc. | Leaned deswirl vanes behind a centrifugal compressor in a gas turbine engine |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017520739A (ja) * | 2014-04-09 | 2017-07-27 | サフラン・ヘリコプター・エンジンズ | 燃焼チャンバに関するディフューザの方位角設定を含む航空機エンジン |
JP2017211165A (ja) * | 2016-05-27 | 2017-11-30 | Ysec株式会社 | ガスタービンエンジン |
JP2020084908A (ja) * | 2018-11-28 | 2020-06-04 | 株式会社Ihi | 空気供給装置 |
JP7143194B2 (ja) | 2018-11-28 | 2022-09-28 | 株式会社Ihi | 空気供給装置 |
Also Published As
Publication number | Publication date |
---|---|
EP2071152A2 (fr) | 2009-06-17 |
CN101368512B (zh) | 2013-06-12 |
JP5279400B2 (ja) | 2013-09-04 |
CN101368512A (zh) | 2009-02-18 |
FR2920032A1 (fr) | 2009-02-20 |
US8047777B2 (en) | 2011-11-01 |
CA2638817A1 (fr) | 2009-02-13 |
CA2638817C (fr) | 2016-04-12 |
EP2071152B1 (fr) | 2019-06-19 |
RU2008133234A (ru) | 2010-02-20 |
US20090047127A1 (en) | 2009-02-19 |
EP2071152A3 (fr) | 2017-08-02 |
RU2485356C2 (ru) | 2013-06-20 |
FR2920032B1 (fr) | 2014-08-22 |
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