Global Patent Index - EP 2912272 B1

EP 2912272 B1 20161102 - METHOD FOR MISALIGNING A ROTOR BLADE GRID

Title (en)

METHOD FOR MISALIGNING A ROTOR BLADE GRID

Title (de)

VERFAHREN ZUM VERSTIMMEN EINES LAUFSCHAUFELGITTERS

Title (fr)

PROCÉDÉ DE DÉSACCORDAGE D'UNE MATRICE D'AUBE DIRECTRICE

Publication

EP 2912272 B1 20161102 (DE)

Application

EP 14702486 A 20140123

Priority

  • EP 13153956 A 20130205
  • EP 2014051322 W 20140123
  • EP 14702486 A 20140123

Abstract (en)

[origin: EP2762678A1] The method involves setting a desired-characteristic frequency for a rotating blade of a rotating blade grid, where the rotating blade is provided for a predetermined vibration mode in normal operation of a turbomachine under a centrifugal force effect. The vibration load of the rotating blade grid lies under the centrifugal force below a tolerance limit. A value table is installed with selected discrete mass values and radial gravity positions.

IPC 8 full level

F01D 5/16 (2006.01)

CPC (source: EP US)

F01D 5/16 (2013.01 - EP US); F05D 2220/30 (2013.01 - US); F05D 2230/10 (2013.01 - US); F05D 2260/961 (2013.01 - US)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

EP 2762678 A1 20140806; CN 104968894 A 20151007; CN 104968894 B 20161109; EP 2912272 A1 20150902; EP 2912272 B1 20161102; JP 2016507023 A 20160307; JP 6054550 B2 20161227; KR 20150112989 A 20151007; PL 2912272 T3 20170428; US 2016010461 A1 20160114; US 9835034 B2 20171205; WO 2014122028 A1 20140814

DOCDB simple family (application)

EP 13153956 A 20130205; CN 201480007356 A 20140123; EP 14702486 A 20140123; EP 2014051322 W 20140123; JP 2015555656 A 20140123; KR 20157020876 A 20140123; PL 14702486 T 20140123; US 201414764062 A 20140123