JP6352628B2 - テーパ付き部分スパン型シュラウド - Google Patents
テーパ付き部分スパン型シュラウド Download PDFInfo
- Publication number
- JP6352628B2 JP6352628B2 JP2013258770A JP2013258770A JP6352628B2 JP 6352628 B2 JP6352628 B2 JP 6352628B2 JP 2013258770 A JP2013258770 A JP 2013258770A JP 2013258770 A JP2013258770 A JP 2013258770A JP 6352628 B2 JP6352628 B2 JP 6352628B2
- Authority
- JP
- Japan
- Prior art keywords
- airfoil portion
- blade
- partial span
- shroud
- airfoil
- 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.)
- Active
Links
- 230000036961 partial effect Effects 0.000 title claims description 58
- 230000002829 reductive effect Effects 0.000 description 9
- 230000000670 limiting effect Effects 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 5
- 230000003247 decreasing effect Effects 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
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
- F01D5/22—Blade-to-blade connections, e.g. for damping vibrations
- F01D5/225—Blade-to-blade connections, e.g. for damping vibrations by shrouding
-
- 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
- F01D5/16—Form or construction for counteracting blade vibration
-
- 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
- F05D2260/96—Preventing, counteracting or reducing vibration or 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
12:ロータ
14:シャフト
18:ロータ・ホイール
20:回転式動翼
22:静翼
24:蒸気
26:入口
32:翼型部分
34:基部
36:動翼取付け部材
38:半径方向外側先端
40:前縁
42:後縁
44:加圧側
46:吸込側
48:部分スパン型シュラウド
50、52:部分スパン型シュラウド部分
54、56:接触面
58:フィレット
60、62:部分スパン型シュラウド部分
64、66:動翼
68、70:接触面
72:部分スパン型シュラウド
74:翼弦
76:前縁
78:後縁
80:部分スパン型シュラウド
82:前縁
84:翼弦
86:後縁
90:動翼又はバケット
92:部分スパン型シュラウド部分
93:部分スパン型シュラウド部分
94:吸込側
95、105:加圧側
96、110(図8):前縁
98、112(図8):後縁
100:連結縁
101、103、105:翼弦
102:接触面
104:部分スパン型シュラウド部分
106:動翼又はバケット
108、109:フィレット
110(図2):ガス・タービン
112(図2):ロータ
114(図2):シャフト
114(図11)、116:部分スパン型シュラウド部分
115、117:翼弦長さ
118:ロータ・ホイール
120:回転式動翼
122:静翼
Claims (8)
- 前縁及び後縁、半径方向内側端部及び半径方向外側端部を有する翼型部分と、
前記翼型部分の前記半径方向内側端部に位置する基部と、
前記基部と前記半径方向外側端部との間で前記翼型部分に位置して、前記翼型部分の第1の側から第1の接触面まで突出している第1の部分スパン型シュラウドであって、前記翼型部分から第1の接触面まで幅及び厚みが減少するようにテーパが付けられている第1の部分スパン型シュラウドと、
前記基部と前記半径方向外側端部との間で前記翼型部分に位置して、前記翼型部分の第1の側とは反対側の第2の側から第2の接触面まで突出している第2の部分スパン型シュラウドであって、前記翼型部分から第2の接触面まで幅及び厚みが減少するようにテーパが付けられている第2の部分スパン型シュラウドと
を備えたターボ機械のための回転式動翼であって、前記翼型部分の第1の側が翼型部分の加圧側であって、前記翼型部分の第2の側が翼型部分の吸込側であり、前記翼型部分の加圧側の第1の部分スパン型シュラウドの最大厚みが、前記翼型部分の吸込側の第2の分スパン型シュラウドの最大厚みの1.1倍から1.5倍である、回転式動翼。 - 前記第1及び第2の部分スパン型シュラウドは長さが実質的に等しい、請求項1に記載の回転式動翼。
- 前記第1及び第2の部分スパン型シュラウドは異なる長さを有する、請求項1に記載の回転式動翼。
- 前記第1及び第2の部分スパン型シュラウドは対称な断面形状を有する、請求項1に記載の回転動翼。
- 前記第1及び第2の部分スパン型シュラウドは実質的に涙滴型形状を有する、請求項4に記載の回転式動翼。
- 圧縮機の前方段動翼、
ガス・タービンの後方段動翼、又は
蒸気タービンの低圧区画動翼
の一つとして動作する、請求項1に記載の回転式動翼。 - 前記翼型部分の加圧側の第1の部分スパン型シュラウドの長さが、前記翼型部分の吸込側の第2の部分スパン型シュラウドの長さの1.1倍から1.5倍である、請求項3に記載の回転式動翼。
- ステータの内部で回転自在に装着されたロータを備えたターボ機械であって、前記ロータは、
シャフトと、
前記シャフトに装着された少なくとも一つのロータ・ホイールと
を含んでおり、前記少なくとも一つのロータ・ホイールの各々に、複数の半径方向外向きに延在する動翼が装着されており、各々の動翼が請求項1乃至請求項7のいずれか1項に記載の回転式動翼である、ターボ機械。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/717,265 US9546555B2 (en) | 2012-12-17 | 2012-12-17 | Tapered part-span shroud |
US13/717,265 | 2012-12-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2014118974A JP2014118974A (ja) | 2014-06-30 |
JP6352628B2 true JP6352628B2 (ja) | 2018-07-04 |
Family
ID=49766948
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2013258770A Active JP6352628B2 (ja) | 2012-12-17 | 2013-12-16 | テーパ付き部分スパン型シュラウド |
Country Status (4)
Country | Link |
---|---|
US (1) | US9546555B2 (ja) |
EP (1) | EP2743453B1 (ja) |
JP (1) | JP6352628B2 (ja) |
CN (1) | CN203906011U (ja) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014143292A1 (en) * | 2013-03-15 | 2014-09-18 | United Technologies Corporation | Fan airfoil shrouds with area ruling in the shrouds |
EP2823952A1 (de) * | 2013-07-09 | 2015-01-14 | Siemens Aktiengesellschaft | Anpassungsverfahren und Herstellverfahren für mittels SLM gefertigte Bauteile |
US9574450B2 (en) * | 2014-08-07 | 2017-02-21 | General Electric Company | Turbine blade mid-span shroud assembly |
KR102206203B1 (ko) * | 2014-11-06 | 2021-01-22 | 미츠비시 파워 가부시키가이샤 | 증기 터빈 동익, 증기 터빈 동익의 제조 방법 및 증기 터빈 |
US10132169B2 (en) * | 2015-12-28 | 2018-11-20 | General Electric Company | Shrouded turbine rotor blades |
WO2017184138A1 (en) * | 2016-04-21 | 2017-10-26 | Siemens Aktiengesellschaft | Preloaded snubber assembly for turbine blades |
EP3409892B1 (en) * | 2017-05-31 | 2020-07-15 | Ansaldo Energia Switzerland AG | Gas turbine blade comprising winglets to compensate centrifugal forces |
DE102018006175B4 (de) * | 2018-08-01 | 2020-08-13 | Friedrich Grimm | Kaskadenturbine |
US11339670B2 (en) | 2020-10-13 | 2022-05-24 | General Electric Company | Part-span shroud configurations |
US11767760B2 (en) * | 2020-11-04 | 2023-09-26 | Honeywell International Inc. | Geometric approach to stress reduced intra-flow path shrouds for tuning modal responses in ram air turbine rotors |
JP7245215B2 (ja) * | 2020-11-25 | 2023-03-23 | 三菱重工業株式会社 | 蒸気タービン動翼 |
US11913355B2 (en) * | 2022-02-14 | 2024-02-27 | General Electric Company | Part-span shrouds for pitch controlled aircrafts |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2472886A (en) * | 1946-11-01 | 1949-06-14 | Westinghouse Electric Corp | Turbine blade lashing |
FR1033197A (fr) * | 1951-02-27 | 1953-07-08 | Rateau Soc | Amortisseurs de vibrations pour aubages mobiles de turbo-machines |
US3795462A (en) * | 1971-08-09 | 1974-03-05 | Westinghouse Electric Corp | Vibration dampening for long twisted turbine blades |
JPS60111001A (ja) * | 1983-11-21 | 1985-06-17 | Mitsubishi Heavy Ind Ltd | タ−ビン用インテグラルスタブ翼 |
US4798519A (en) * | 1987-08-24 | 1989-01-17 | United Technologies Corporation | Compressor part span shroud |
US5257908A (en) * | 1991-11-15 | 1993-11-02 | Ortolano Ralph J | Turbine lashing structure |
US5695323A (en) * | 1996-04-19 | 1997-12-09 | Westinghouse Electric Corporation | Aerodynamically optimized mid-span snubber for combustion turbine blade |
JP2007187053A (ja) * | 2006-01-12 | 2007-07-26 | Hitachi Ltd | タービン動翼 |
JP2009007981A (ja) * | 2007-06-27 | 2009-01-15 | Toshiba Corp | 蒸気タービン用長動翼翼列の中間固定支持構造及び蒸気タービン |
US8182228B2 (en) * | 2007-08-16 | 2012-05-22 | General Electric Company | Turbine blade having midspan shroud with recessed wear pad and methods for manufacture |
US8075272B2 (en) * | 2008-10-14 | 2011-12-13 | General Electric Company | Steam turbine rotating blade for a low pressure section of a steam turbine engine |
US8157525B2 (en) * | 2008-11-20 | 2012-04-17 | General Electric Company | Methods and apparatus relating to turbine airfoil cooling apertures |
US8118557B2 (en) | 2009-03-25 | 2012-02-21 | General Electric Company | Steam turbine rotating blade of 52 inch active length for steam turbine low pressure application |
US8616848B2 (en) | 2009-12-14 | 2013-12-31 | Siemens Energy, Inc. | Turbine blade damping device with controlled loading |
JP5558095B2 (ja) * | 2009-12-28 | 2014-07-23 | 株式会社東芝 | タービン動翼翼列および蒸気タービン |
US8684692B2 (en) | 2010-02-05 | 2014-04-01 | Siemens Energy, Inc. | Cooled snubber structure for turbine blades |
US8523525B2 (en) * | 2010-02-05 | 2013-09-03 | Siemens Energy, Inc. | Snubber assembly for turbine blades |
PL217698B1 (pl) | 2010-07-28 | 2014-08-29 | Gen Electric | Sposób naprawiania metalowego elementu składowego turbiny i metalowy element składowy turbiny |
US8790082B2 (en) * | 2010-08-02 | 2014-07-29 | Siemens Energy, Inc. | Gas turbine blade with intra-span snubber |
-
2012
- 2012-12-17 US US13/717,265 patent/US9546555B2/en active Active
-
2013
- 2013-12-12 EP EP13196951.1A patent/EP2743453B1/en active Active
- 2013-12-16 JP JP2013258770A patent/JP6352628B2/ja active Active
- 2013-12-17 CN CN201320833335.2U patent/CN203906011U/zh not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US9546555B2 (en) | 2017-01-17 |
CN203906011U (zh) | 2014-10-29 |
US20140169974A1 (en) | 2014-06-19 |
JP2014118974A (ja) | 2014-06-30 |
EP2743453B1 (en) | 2019-05-22 |
EP2743453A1 (en) | 2014-06-18 |
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