EP 0718471 A1 19960626 - Containment ring for a turbomachine
Title (en)
Containment ring for a turbomachine
Title (de)
Berstschutzring für eine Turbomaschine
Title (fr)
Bouclier de protection d'une turbomachine
Publication
Application
Priority
FR 9415382 A 19941221
Abstract (en)
The shield (9) to protect a turbine housing from broken blades, consists of a ring of a ductile material around the turbine stator (2), attached to the engine by fixings which are calculated to shear below the force needed to break the shield. This allows the shield to deform with the annular space between the stator and outer housing (3), containing the broken blade(s) within the housing. The fixings can be in the form of shearing bolts, pins or lugs connecting the shield to the engine, or a zone of reduced strength with initial perforations.
Abstract (fr)
Bouclier de protection (9) d'un carénage extérieur (3) de turbomachine. Il consiste en un anneau de matière ductile retenu par quelques moyens d'attache relativement de rupture facile. Quand un morceau de rotor (17) détaché accidentellement vient le heurter, il le bosselle en rompant certaines des attaches ou leur totalité. Grâce à cette possibilité, qui autorise de grandes déformations du bouclier (9), la capacité d'absorption d'énergie est importante. <IMAGE>
IPC 1-7
IPC 8 full level
F02C 7/00 (2006.01); F01D 21/04 (2006.01); F01D 25/24 (2006.01); F02K 1/82 (2006.01)
CPC (source: EP US)
F01D 21/045 (2013.01 - EP US)
Citation (search report)
- [YD] FR 2375443 A1 19780721 - GEN ELECTRIC [US]
- [Y] US 3602602 A 19710831 - MOTTA SALVATORE
- [Y] GB 1466385 A 19770309 - ROLLS ROYCE
- [Y] GB 2262313 A 19930616 - ROLLS ROYCE PLC [GB]
- [A] US 3093361 A 19630611 - GEORGE HOOKER STANLEY, et al
- [A] DE 4223496 A1 19940120 - ASEA BROWN BOVERI [CH]
- [A] US 1698514 A 19290108 - SCHMIDT HENRY F
- [A] EP 0028183 A1 19810506 - SNECMA [FR]
- [A] EP 0358141 A1 19900314 - MTU MUENCHEN GMBH [DE]
- [AD] EP 0626502 A1 19941130 - ROLLS ROYCE PLC [GB]
- [A] WO 9207180 A1 19920430 - SUNDSTRAND CORP [US]
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0718471 A1 19960626; EP 0718471 B1 19990414; CA 2165511 A1 19960622; DE 69509053 D1 19990520; DE 69509053 T2 19991007; FR 2728619 A1 19960628; FR 2728619 B1 19970124; JP 2967045 B2 19991025; JP H08232683 A 19960910; RU 2122124 C1 19981120; US 5622472 A 19970422; WO 9619641 A1 19960627
DOCDB simple family (application)
EP 95402879 A 19951220; CA 2165511 A 19951218; DE 69509053 T 19951220; FR 9415382 A 19941221; FR 9501698 W 19951220; JP 33369195 A 19951221; RU 96119244 A 19951220; US 57172995 A 19951213