公开(公告)号：US20170226861A1

公开(公告)日：2017-08-10

申请号：US15519351

申请日：2015-10-15

Applicant: SAFRAN AIRCRAFT ENGINES ,  SAFRAN CERAMICS

Inventor： Gael Frederic Claude Cyrille EVAIN ,  Pierre-Louis Alexandre CARLOS ,  Claire Charlotte GROLEAU ,  Mathieu Louis Jean LEDUC ,  David MARSAL

IPC: F01D5/02 ,  F01D25/24 ,  F01D25/00 ,  F04D29/52 ,  F04D29/54 ,  F04D29/02 ,  F01D9/04 ,  F04D19/02

CPC classification number: F01D5/022 ,  F01D9/041 ,  F01D11/001 ,  F01D25/005 ,  F01D25/24 ,  F04D19/022 ,  F04D29/023 ,  F04D29/522 ,  F04D29/542 ,  F05D2230/642 ,  F05D2250/232 ,  F05D2300/6033 ,  Y02T50/672

Abstract: A rotary assembly for a turbine engine is provided. The assembly includes a rotor with two consecutive rotor stages equipped with a plurality of movable vanes, and an annular rotor shroud connecting the two consecutive rotor stages; and a stator including a stator stage, provided with a plurality of fixed vanes and disposed between the two rotor stages, and an annular stator ring mounted on the fixed vanes. Either the rotor shroud or the stator ring bears at least one wiper designed to cooperate with an abradable track on the other of the rotor shroud and stator ring, such that the rotor shroud includes at at least one of its upstream or downstream ends an inclined contact portion resting on an inclined bearing surface of the corresponding rotor stage, the bearing surface being the outer surface of a projection extending from a base portion of the corresponding rotor stage.

公开(公告)号：US20190152861A1

公开(公告)日：2019-05-23

申请号：US16099922

申请日：2017-05-11

Applicant: SAFRAN CERAMICS

Inventor： Eric BOUILLON ,  Aurélia CLERAMBOURG ,  Lisa PIN ,  David MARSAL

IPC: C04B35/185 ,  C04B35/80 ,  C04B35/624 ,  C04B35/64 ,  C04B35/628

Abstract: A part made of composite material includes fiber reinforcement including silicon carbide fibers presenting an oxygen content less than or equal to 1% in atomic percentage; and a matrix present in the pores of the fiber reinforcement and including at least one sintered silicate phase including at least one rare earth silicate, mullite, or a mixture of mullite and of at least one rare earth silicate, the matrix including at least a first phase including mullite and a second phase, different from the first phase, including at least one rare earth silicate.