EP 4150199 A1 20230322 - AIRCRAFT TURBOMACHINE COMPRISING A DEVICE FOR LUBRICATING A BEARING
Title (en)
AIRCRAFT TURBOMACHINE COMPRISING A DEVICE FOR LUBRICATING A BEARING
Title (de)
TURBOMASCHINE EINES LUFTFAHRZEUGS, DIE EINE SCHMIERVORRICHTUNG EINES LAGERS UMFASST
Title (fr)
TURBOMACHINE D'AERONEF COMPRENANT UN DISPOSITIF DE LUBRIFICATION D'UN PALIER
Publication
Application
Priority
- FR 2004717 A 20200513
- FR 2021050790 W 20210509
Abstract (en)
[origin: WO2021229167A1] The invention relates to a turbomachine (1) for an aircraft, comprising: a first rotor (8) comprising a first shaft (80), a second rotor (9) comprising a second shaft (90), a mechanical reduction gearing (14) having an epicyclic gear set comprising a sun gear (41) connected to the second shaft (90), a ring gear (42) connected to the first shaft (80), and planet gears (43) located between the sun gear (41) and the ring gear (42) and borne by a planet carrier (43a) attached to a stator of the turbomachine (1), rolling-element bearings (15, 82, 83) for guiding said first shaft (80) and second shaft (90) in rotation, an annular gutter (17) which extends around the ring gear (42) of the reduction gearing (14) and which is configured to recover oil for lubricating the reduction gearing (14) that is sprayed by centrifugal action out from the ring gear (42) during operation, and an annular bearing support (16) which is attached, with the gutter (17), to a stator of the turbomachine and which supports at least one of said bearings (15), characterized in that it also comprises: at least one device (19) for conveying oil recovered by said gutter (17), which device is borne by said annular support (16) and extends as far as said at least one bearing (15) in order to lubricate the latter.
IPC 8 full level
F02C 7/36 (2006.01); F01D 1/24 (2006.01); F01D 25/16 (2006.01); F01D 25/18 (2006.01); F02C 3/067 (2006.01)
CPC (source: EP US)
F01D 1/24 (2013.01 - EP); F01D 25/162 (2013.01 - EP); F01D 25/18 (2013.01 - EP US); F01D 25/183 (2013.01 - US); F02C 3/067 (2013.01 - EP); F02C 7/06 (2013.01 - US); F02C 7/36 (2013.01 - EP US); F05D 2220/323 (2013.01 - US); F05D 2240/50 (2013.01 - US); F05D 2240/55 (2013.01 - US); F05D 2250/44 (2013.01 - EP); F05D 2260/40311 (2013.01 - EP); F05D 2260/98 (2013.01 - EP US); Y02T 50/60 (2013.01 - EP)
Citation (search report)
See references of WO 2021229167A1
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
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
FR 3110194 A1 20211119; FR 3110194 B1 20221118; CN 115516196 A 20221223; EP 4150199 A1 20230322; US 2023184167 A1 20230615; WO 2021229167 A1 20211118
DOCDB simple family (application)
FR 2004717 A 20200513; CN 202180034152 A 20210509; EP 21732442 A 20210509; FR 2021050790 W 20210509; US 202117923984 A 20210509