EP 3130762 B1 20181003 - SYSTEM FOR ACTIVE ADJUSTMENT OF A RADIAL GAP SIZE AND CORRESPONDING AIRCRAFT ENGINE
Title (en)
SYSTEM FOR ACTIVE ADJUSTMENT OF A RADIAL GAP SIZE AND CORRESPONDING AIRCRAFT ENGINE
Title (de)
SYSTEM ZUR AKTIVEN EINSTELLUNG EINER RADIALEN SPALTGRÖSSE UND ZUGEHÖRIGES FLUGZEUGTRIEBWERK
Title (fr)
SYSTEME DE REGLAGE ACTIF D'UN JEU D' EXTRÉMITÉ RADIAL ET MOTEUR D'AERONEF ASSOCIÉ
Publication
Application
Priority
DE 102015215479 A 20150813
Abstract (en)
[origin: US2017044924A1] A system for the active setting of a radial clearance size between a blade tip of at least one compressor stage and/or at least one turbine stage of an aircraft engine and a housing that surrounds the at least one compressor stage and/or the at least one turbine stage is provided. The system comprises a model-based setting device, wherein the time-dependent clearance size can be approximated by the model-based setting device, with only those influencing variables being taken into account that have a time-dependent deformation behavior which is equal to or slower than the time-dependent deformation behavior of the housing. The clearance size in the cold state serves as the set point, with the clearance size being reduced by at least one previously saved value of a clearance proportion, which is determined at maximal thrust of the aircraft engine.
IPC 8 full level
F01D 11/24 (2006.01); F01D 11/14 (2006.01); F01D 11/20 (2006.01); F02C 6/08 (2006.01); F04D 29/32 (2006.01); F04D 29/52 (2006.01); F04D 29/58 (2006.01)
CPC (source: EP US)
F01D 11/24 (2013.01 - EP US); F04D 29/582 (2013.01 - US); F04D 29/642 (2013.01 - US); F05D 2220/323 (2013.01 - US); F05D 2260/30 (2013.01 - US); F05D 2260/81 (2013.01 - EP US); F05D 2270/303 (2013.01 - EP 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 3130762 A1 20170215; EP 3130762 B1 20181003; DE 102015215479 A1 20170216; US 10428675 B2 20191001; US 2017044924 A1 20170216
DOCDB simple family (application)
EP 16183854 A 20160811; DE 102015215479 A 20150813; US 201615234760 A 20160811