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WO2018175003A8 - Snubber with minimized incidence angle - Google Patents

Snubber with minimized incidence angle Download PDF

Info

Publication number
WO2018175003A8
WO2018175003A8 PCT/US2018/016910 US2018016910W WO2018175003A8 WO 2018175003 A8 WO2018175003 A8 WO 2018175003A8 US 2018016910 W US2018016910 W US 2018016910W WO 2018175003 A8 WO2018175003 A8 WO 2018175003A8
Authority
WO
WIPO (PCT)
Prior art keywords
blade
snubber
incidence angle
angle
minimized
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.)
Ceased
Application number
PCT/US2018/016910
Other languages
French (fr)
Other versions
WO2018175003A1 (en
Inventor
Roland SIGG
Thomas Lutz
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.)
General Electric Co
Original Assignee
General Electric Co
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
Priority claimed from EP17161833.3A external-priority patent/EP3379033A1/en
Application filed by General Electric Co filed Critical General Electric Co
Priority to PCT/US2018/016910 priority Critical patent/WO2018175003A1/en
Publication of WO2018175003A1 publication Critical patent/WO2018175003A1/en
Publication of WO2018175003A8 publication Critical patent/WO2018175003A8/en
Anticipated expiration legal-status Critical
Ceased 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
    • F01D5/22—Blade-to-blade connections, e.g. for damping vibrations
    • F01D5/225—Blade-to-blade connections, e.g. for damping vibrations by shrouding

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)

Abstract

L'invention concerne un système comprenant une première pale (102), une seconde pale (104), et un amortisseur (100) disposé entre un côté pression (106) de la première pale (102) et un côté d'aspiration (108) de la seconde pale (104). Un angle d'inclinaison d'une corde de profil (112) de l'amortisseur (100) peut être modifié depuis le côté pression (106) de la première pale jusqu'au côté aspiration (108) de la seconde pale (104) afin de minimiser un angle d'incidence entre un certain nombre de lignes de courant (110) dans un champ d'écoulement non perturbé et l'angle d'inclinaison de la corde de profil (112).A system includes a first blade (102), a second blade (104), and a damper (100) disposed between a pressure side (106) of the first blade (102) and a suction side (108). ) of the second blade (104). An angle of inclination of a profile cord (112) of the damper (100) can be changed from the pressure side (106) of the first blade to the suction side (108) of the second blade (104) to minimize an angle of incidence between a number of current lines (110) in an undisturbed flow field and the inclination angle of the profile cord (112).

PCT/US2018/016910 2017-03-20 2018-02-05 Snubber with minimized incidence angle Ceased WO2018175003A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/US2018/016910 WO2018175003A1 (en) 2017-03-20 2018-02-05 Snubber with minimized incidence angle

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB17161833.3 2017-03-20
EP17161833.3 2017-03-20
EP17161833.3A EP3379033A1 (en) 2017-03-20 2017-03-20 Systems and methods for minimizing an incidence angle between a number of streamlines in a not disturbed flow field by varying an inclination angle of a chord line of a snubber
PCT/US2018/016910 WO2018175003A1 (en) 2017-03-20 2018-02-05 Snubber with minimized incidence angle

Publications (2)

Publication Number Publication Date
WO2018175003A1 WO2018175003A1 (en) 2018-09-27
WO2018175003A8 true WO2018175003A8 (en) 2019-02-21

Family

ID=63586464

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2018/016910 Ceased WO2018175003A1 (en) 2017-03-20 2018-02-05 Snubber with minimized incidence angle

Country Status (1)

Country Link
WO (1) WO2018175003A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7753652B2 (en) * 2006-12-15 2010-07-13 Siemens Energy, Inc. Aero-mixing of rotating blade structures
US8182228B2 (en) * 2007-08-16 2012-05-22 General Electric Company Turbine blade having midspan shroud with recessed wear pad and methods for manufacture
JP5558095B2 (en) * 2009-12-28 2014-07-23 株式会社東芝 Turbine blade cascade and steam turbine
WO2012058761A1 (en) * 2010-11-03 2012-05-10 National Research Council Of Canada Oscillating foil turbine
WO2014143305A1 (en) * 2013-03-14 2014-09-18 United Technologies Corporation Low speed fan for gas turbine engines

Also Published As

Publication number Publication date
WO2018175003A1 (en) 2018-09-27

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