EP0278434A3 - A blade, especially a rotor blade - Google Patents
A blade, especially a rotor blade Download PDFInfo
- Publication number
- EP0278434A3 EP0278434A3 EP88101712A EP88101712A EP0278434A3 EP 0278434 A3 EP0278434 A3 EP 0278434A3 EP 88101712 A EP88101712 A EP 88101712A EP 88101712 A EP88101712 A EP 88101712A EP 0278434 A3 EP0278434 A3 EP 0278434A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- blade
- rotor
- rotor 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.)
- Granted
Links
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
- F01D5/141—Shape, i.e. outer, aerodynamic form
- F01D5/145—Means for influencing boundary layers or secondary circulations
-
- 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
- F01D11/10—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator using sealing fluid, e.g. steam
-
- 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
-
- 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
- F01D5/20—Specially-shaped blade tips to seal space between tips and stator
-
- 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
- F04D29/684—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps by fluid injection
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US1178887A | 1987-02-06 | 1987-02-06 | |
US11788 | 1987-02-06 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0278434A2 EP0278434A2 (en) | 1988-08-17 |
EP0278434A3 true EP0278434A3 (en) | 1990-01-31 |
EP0278434B1 EP0278434B1 (en) | 1994-07-20 |
Family
ID=21751969
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88101712A Expired - Lifetime EP0278434B1 (en) | 1987-02-06 | 1988-02-05 | A blade, especially a rotor blade |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0278434B1 (en) |
DE (1) | DE3850681T2 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2319567B (en) * | 1988-07-29 | 1998-09-23 | United Technologies Corp | Clearance control for the turbine of a gas turbine engine |
US5667359A (en) * | 1988-08-24 | 1997-09-16 | United Technologies Corp. | Clearance control for the turbine of a gas turbine engine |
NO306741B1 (en) * | 1988-08-24 | 1999-12-13 | United Technologies Corp | Axial turbine for a gas turbine engine |
US5382135A (en) * | 1992-11-24 | 1995-01-17 | United Technologies Corporation | Rotor blade with cooled integral platform |
DE10305351A1 (en) * | 2003-02-10 | 2004-08-19 | Rolls-Royce Deutschland Ltd & Co Kg | Compressor blade has in radially outer blade end one or more indentations in one or more rows |
US6830432B1 (en) * | 2003-06-24 | 2004-12-14 | Siemens Westinghouse Power Corporation | Cooling of combustion turbine airfoil fillets |
DE10355241A1 (en) * | 2003-11-26 | 2005-06-30 | Rolls-Royce Deutschland Ltd & Co Kg | Fluid flow machine with fluid supply |
US20070122280A1 (en) | 2005-11-30 | 2007-05-31 | General Electric Company | Method and apparatus for reducing axial compressor blade tip flow |
CN110863864B (en) * | 2019-12-11 | 2022-05-10 | 沈阳航空航天大学 | Turbine blade with internal transversely-winding alternately-shrinking and-expanding short channels |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1024754B (en) * | 1956-02-11 | 1958-02-20 | Maschf Augsburg Nuernberg Ag | Cooled blade for hot operated turbines or compressors |
US4020538A (en) * | 1973-04-27 | 1977-05-03 | General Electric Company | Turbomachinery blade tip cap configuration |
GB2010981A (en) * | 1977-12-21 | 1979-07-04 | Gen Electric | Turbomachinery blade with tip cap |
GB2075129A (en) * | 1980-05-01 | 1981-11-11 | Gen Electric | Tip cap for a rotor blade and method of replacement |
GB2077363A (en) * | 1980-06-05 | 1981-12-16 | United Technologies Corp | Wafer tip cap for rotor blades |
-
1988
- 1988-02-05 EP EP88101712A patent/EP0278434B1/en not_active Expired - Lifetime
- 1988-02-05 DE DE3850681T patent/DE3850681T2/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1024754B (en) * | 1956-02-11 | 1958-02-20 | Maschf Augsburg Nuernberg Ag | Cooled blade for hot operated turbines or compressors |
US4020538A (en) * | 1973-04-27 | 1977-05-03 | General Electric Company | Turbomachinery blade tip cap configuration |
GB2010981A (en) * | 1977-12-21 | 1979-07-04 | Gen Electric | Turbomachinery blade with tip cap |
GB2075129A (en) * | 1980-05-01 | 1981-11-11 | Gen Electric | Tip cap for a rotor blade and method of replacement |
GB2077363A (en) * | 1980-06-05 | 1981-12-16 | United Technologies Corp | Wafer tip cap for rotor blades |
Also Published As
Publication number | Publication date |
---|---|
EP0278434B1 (en) | 1994-07-20 |
EP0278434A2 (en) | 1988-08-17 |
DE3850681T2 (en) | 1995-03-09 |
DE3850681D1 (en) | 1994-08-25 |
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