EP 2901021 B2 20230719 - TURBOMACHINE CASING AND IMPELLER
Title (en)
TURBOMACHINE CASING AND IMPELLER
Title (de)
TURBOMASCHINENGEHÄUSE UND LAUFRAD
Title (fr)
CARTER ET ROUE A AUBES DE TURBOMACHINE
Publication
Application
Priority
- FR 1258959 A 20120925
- FR 2013052172 W 20130919
Abstract (en)
[origin: WO2014049239A1] The invention concerns an assembly comprising a turbomachine casing (12) and an impeller (14) arranged therein. The housing (12) has an internal wall (20) comprising a circumferential strip (24) of abradable material. Facing the ends of the vanes, the housing has, upstream, the strip of abradable material, and downstream, a circumferential groove (30). The strip of abradable material is defined downstream by the circumferential groove (30). The downstream limit of the circumferential groove (30) is located to the right of or downstream from the trailing edge (18B) of the vanes (18). This arrangement optimises the use of abradable material in the turbomachine casing.
IPC 8 full level
F04D 29/16 (2006.01); F01D 11/12 (2006.01); F04D 29/52 (2006.01)
CPC (source: CN EP RU US)
F01D 11/122 (2013.01 - CN EP RU US); F01D 25/24 (2013.01 - US); F04D 29/164 (2013.01 - CN EP US); F04D 29/526 (2013.01 - CN EP RU US)
Citation (opposition)
Opponent :
US 6227794 B1 20010508 - WOJTYCZKA CZESLAW [CA], et al
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)
FR 2995949 A1 20140328; FR 2995949 B1 20180525; BR 112015006386 A2 20170704; BR 112015006386 B1 20220524; CA 2885650 A1 20140403; CA 2885650 C 20200915; CN 104704244 A 20150610; CN 104704244 B 20180302; EP 2901021 A1 20150805; EP 2901021 B1 20200520; EP 2901021 B2 20230719; JP 2015531447 A 20151102; JP 6382821 B2 20180829; RU 2015115673 A 20161120; RU 2727943 C2 20200727; US 2015226078 A1 20150813; US 9982554 B2 20180529; WO 2014049239 A1 20140403
DOCDB simple family (application)
FR 1258959 A 20120925; BR 112015006386 A 20130919; CA 2885650 A 20130919; CN 201380052857 A 20130919; EP 13779269 A 20130919; FR 2013052172 W 20130919; JP 2015533666 A 20130919; RU 2015115673 A 20130919; US 201314430864 A 20130919