Global Patent Index - EP 2300688 A1

EP 2300688 A1 20110330 - HIGH PRESSURE TURBINE FOR TURBINE ENGINE WITH IMPROVED MOUNTING OF THE HOUSING FOR CONTROLLING THE RADIAL CLEARANCE OF MOBILE BLADES

Title (en)

HIGH PRESSURE TURBINE FOR TURBINE ENGINE WITH IMPROVED MOUNTING OF THE HOUSING FOR CONTROLLING THE RADIAL CLEARANCE OF MOBILE BLADES

Title (de)

HOCHDRUCKTURBINE FÜR TURBOMOTOR MIT VERBESSERTER BEFESTIGUNG DES GEHÄUSES ZUR STEUERUNG DES RADIALSPIELS BEWEGLICHER SCHAUFELN

Title (fr)

TURBINE HAUTE PRESSION D'UNE TURBOMACHINE AVEC MONTAGE AMELIORE DU BOITIER DE PILOTAGE DES JEUX RADIAUX D'AUBES MOBILES

Publication

EP 2300688 A1 20110330 (FR)

Application

EP 09753846 A 20090525

Priority

  • EP 2009056279 W 20090525
  • FR 0853471 A 20080528

Abstract (en)

[origin: WO2009144191A1] The invention relates to an improvement in high-pressure turbines (10) of turbine engines, such as a turbojet, in which a housing (40) for driving the axial clearance of rotary blades (18) is provided. According to the invention, an annular member (5) having a predetermined flexibility is also provided, and has one end (51) attached to an annular bearing (24) and another end (52) arranged for simple axial bearing under a given pressure against the upstream portion (401) of the control housing (40). It is thus possible to avoid parasitic vibratory strains at the attachment points (45, 46) of the control housing to the outer casing (22) of the turbines, and to thereby prevent the occurrence of cracks.

IPC 8 full level

F01D 11/24 (2006.01)

CPC (source: EP)

F01D 11/24 (2013.01); F05D 2260/30 (2013.01); F05D 2260/96 (2013.01)

Citation (search report)

See references of WO 2009144191A1

Designated contracting state (EPC)

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 SE SI SK TR

Designated extension state (EPC)

AL BA RS

DOCDB simple family (publication)

WO 2009144191 A1 20091203; BR PI0912994 A2 20151013; BR PI0912994 B1 20191126; CA 2725864 A1 20091203; CA 2725864 C 20160712; CN 102046926 A 20110504; CN 102046926 B 20141105; EP 2300688 A1 20110330; EP 2300688 B1 20130828; FR 2931872 A1 20091204; FR 2931872 B1 20100820; JP 2011522150 A 20110728; JP 5615808 B2 20141029; RU 2010153596 A 20120710; RU 2503822 C2 20140110; US 2011076135 A1 20110331; US 8662828 B2 20140304

DOCDB simple family (application)

EP 2009056279 W 20090525; BR PI0912994 A 20090525; CA 2725864 A 20090525; CN 200980119048 A 20090525; EP 09753846 A 20090525; FR 0853471 A 20080528; JP 2011510967 A 20090525; RU 2010153596 A 20090525; US 99496909 A 20090525