JP4762524B2 - ガスタービンエンジンロータ組立体を冷却するための方法及び装置 - Google Patents
ガスタービンエンジンロータ組立体を冷却するための方法及び装置 Download PDFInfo
- Publication number
- JP4762524B2 JP4762524B2 JP2004315281A JP2004315281A JP4762524B2 JP 4762524 B2 JP4762524 B2 JP 4762524B2 JP 2004315281 A JP2004315281 A JP 2004315281A JP 2004315281 A JP2004315281 A JP 2004315281A JP 4762524 B2 JP4762524 B2 JP 4762524B2
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- Prior art keywords
- platform
- shank
- cooling
- rotor blade
- rotor
- 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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- 238000001816 cooling Methods 0.000 title claims description 80
- 238000000034 method Methods 0.000 title description 6
- 241000879887 Cyrtopleura costata Species 0.000 claims description 13
- 238000010926 purge Methods 0.000 claims description 6
- 239000007789 gas Substances 0.000 description 15
- 238000011144 upstream manufacturing Methods 0.000 description 6
- 238000007789 sealing Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Classifications
-
- 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
- F01D5/18—Hollow blades, i.e. blades with cooling or heating channels or cavities; Heating, heat-insulating or cooling means on blades
- F01D5/187—Convection cooling
-
- 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
- F05D2240/00—Components
- F05D2240/80—Platforms for stationary or moving blades
- F05D2240/81—Cooled platforms
-
- 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
- F05D2260/00—Function
- F05D2260/20—Heat transfer, e.g. cooling
- F05D2260/201—Heat transfer, e.g. cooling by impingement of a fluid
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49316—Impeller making
- Y10T29/4932—Turbomachine making
- Y10T29/49321—Assembling individual fluid flow interacting members, e.g., blades, vanes, buckets, on rotary support member
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Description
60 翼形部
62 プラットホーム
64 シャンク
66 ダブテール
70 翼形部負圧側面
72 翼形部正圧側面
74 翼形部前縁
76 翼形部後縁
78 ブレード根元
80 翼形部先端
84 内部冷却空洞
90 プラットホーム前縁側壁
92 プラットホーム後縁側壁
94 プラットホーム正圧側端縁
96 プラットホーム負圧側端縁
120 シャンク凹状側壁
122 シャンク凸状側壁
124 シャンク上流側壁
126 シャンク下流側壁
128 シャンク空洞
130 前方エンゼルウィング
132 後方エンゼルウィング
134 前方下部エンゼルウィング
140 冷却回路
142 インピンジメント冷却開口
144 プラットホーム半径方向内側表面
150 フィルム冷却開口
152 プラットホーム半径方向外側表面
160 シャンク側壁陥凹部分
170 パージスロット
178 プラットホーム後縁陥凹部分
Claims (8)
- ガスタービンエンジン(10)用のロータブレード(40)であって、当該ロータブレード(40)が、
半径方向外側表面(152)及び半径方向内側表面(144)を含むプラットホーム(62)と、
前記プラットホームから半径方向外向きに延びる翼形部(60)と、
前記プラットホームから半径方向内向きに延びるシャンク(64)と、
前記シャンクから延びるダブテール(66)と
を含んでおり、
前記プラットホーム(62)が、凸状側壁(96)及び対向する凹状側壁(94)によって互いに接合された前縁側壁(90)及び後縁側壁(92)をさらに含んでいて、前記後縁側壁の少なくとも一部分(178)が、プラットホーム後縁の冷却を可能にすべく前記プラットホーム半径方向外側表面(152)と半径方向内側表面(144)の間で陥凹しており、
前記シャンク(64)が、シャンク(64)の凸状側壁(122)に各々隣接して形成された前縁シールピン空洞(200)及び後縁シールピン空洞(202)をさらに含んでいて、前縁シールピン空洞(200)及び後縁シールピン空洞(202)が、隣接するロータブレード間をシールするように構成されており、前記シャンク(64)が、前記後縁シールピン空洞(202)内に配置された半径方向シールピン(204)をさらに含んでいて、前記前縁シールピン空洞(200)がプラットホームフィルム冷却を高め、
内部空洞(84)の少なくとも一部が、前記翼形部、プラットホーム、シャンク及びダブテールによって形成され、
冷却回路(140)が前記シャンクの一部分を貫通して、前記プラットホーム半径方向内側表面をインピンジメント冷却するための冷却空気を前記空洞から供給する、
ロータブレード(40)。 - 前記プラットホーム(62)が、前記プラットホーム半径方向内側表面(144)の少なくとも一部分内に形成されたパージスロット(170)をさらに含み、前記パージスロットが、それを通して冷却空気を流して隣接するロータブレードプラットホーム間に形成されたギャップ(48)をパージするように構成されている、請求項1記載のロータブレード(40)。
- 前記プラットホーム(62)が、前記プラットホーム半径方向外側表面(152)と半径方向内側表面(144)の間で延びて該プラットホーム半径方向外側表面をフィルム冷却するための冷却空気を供給する複数のフィルム冷却開口(150)をさらに含む、請求項1又は請求項2記載のロータブレード(40)。
- 前記シャンク(64)が、前側壁(124)と後側壁(126)との間で軸方向に延びており、前記前側壁の少なくとも一部分(160)が陥凹していて、前記複数のフィルム冷却開口(150)を通して供給される冷却空気の圧力を増大させるのを可能にする、請求項3記載のロータブレード(40)。
- 前記シャンク(64)が、前記シャンク前側壁(124)から外向きに延びる少なくとも1つのエンゼルウィング(134)をさらに含み、前記少なくとも1つのエンゼルウィングから半径方向内側の前記シャンク前側壁の少なくとも一部分(160)が陥凹している、請求項4記載のロータブレード(40)。
- 前記プラットホーム(62)が、凸状側壁(96)、凹状側壁(94)及び複数の対流冷却開口(302)をさらに含み、前記凸状側壁及び凹状側壁が各々、前記プラットホーム半径方向外側表面(152)と半径方向内側表面(144)の間で延び、前記複数の対流冷却開口が、前記空洞と前記プラットホーム凹状側壁との間で延びて該プラットホーム凹状側壁を対流冷却するための冷却空気を供給する、請求項1記載のロータブレード(40)。
- 前記プラットホーム(62)の少なくとも一部分(184)が面取りされて、該プラットホームの少なくとも一部分の熱伝達率を低下させるのを可能にする、請求項1記載のロータブレード(40)。
- ロータシャフトと該ロータシャフトに結合された複数の円周方向に間隔を置いて配置されたロータブレードとを含むガスタービンエンジンロータ組立体であって、前記ロータブレードの少なくとも1つが、請求項1乃至請求項7のいずれか1項記載のロータブレードである、ガスタービンエンジンロータ組立体。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/699,060 US7600972B2 (en) | 2003-10-31 | 2003-10-31 | Methods and apparatus for cooling gas turbine engine rotor assemblies |
US10/699,060 | 2003-10-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005133726A JP2005133726A (ja) | 2005-05-26 |
JP4762524B2 true JP4762524B2 (ja) | 2011-08-31 |
Family
ID=34423433
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004315281A Active JP4762524B2 (ja) | 2003-10-31 | 2004-10-29 | ガスタービンエンジンロータ組立体を冷却するための方法及び装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7600972B2 (ja) |
EP (1) | EP1528224B1 (ja) |
JP (1) | JP4762524B2 (ja) |
CN (1) | CN1611748B (ja) |
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-
2003
- 2003-10-31 US US10/699,060 patent/US7600972B2/en not_active Expired - Lifetime
-
2004
- 2004-10-27 EP EP04256646.3A patent/EP1528224B1/en active Active
- 2004-10-29 JP JP2004315281A patent/JP4762524B2/ja active Active
- 2004-10-29 CN CN200410088035.1A patent/CN1611748B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
US20050095128A1 (en) | 2005-05-05 |
EP1528224A2 (en) | 2005-05-04 |
EP1528224B1 (en) | 2016-07-13 |
EP1528224A3 (en) | 2012-06-13 |
JP2005133726A (ja) | 2005-05-26 |
CN1611748B (zh) | 2010-09-08 |
CN1611748A (zh) | 2005-05-04 |
US7600972B2 (en) | 2009-10-13 |
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