EP0278434A3 - A blade, especially a rotor blade - Google Patents

A blade, especially a rotor blade Download PDF

Info

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
Application number
EP88101712A
Other versions
EP0278434B1 (en
EP0278434A2 (en
Inventor
Wolfgang P. Weinhold
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0278434A2 publication Critical patent/EP0278434A2/en
Publication of EP0278434A3 publication Critical patent/EP0278434A3/en
Application granted granted Critical
Publication of EP0278434B1 publication Critical patent/EP0278434B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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)
EP88101712A 1987-02-06 1988-02-05 A blade, especially a rotor blade Expired - Lifetime EP0278434B1 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
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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