(12) International Application Status Report

Received at International Bureau: 19 September 2018 (19.09.2018)

Information valid as of: 21 September 2018 (21.09.2018)

Report generated on: 17 September 2019 (17.09.2019)

(10) Publication number: (43) Publication date: (26) Publication language:
WO 2019/04333007 March 2019 (07.03.2019) French (FR)

(21) Application number: (22) Filing date: (25) Filing language:
PCT/FR2018/05211428 August 2018 (28.08.2018) French (FR)

(31) Priority number(s): (32) Priority date(s): (33) Priority status:
1757896 (FR)28 August 2017 (28.08.2017) Priority document received (in compliance with PCT Rule 17.1)

(51) International Patent Classification:
F01D 5/14 (2006.01); F01D 9/04 (2006.01); F04D 29/54 (2006.01); F04D 29/66 (2006.01)

(71) Applicant(s):
SAFRAN AIRCRAFT ENGINES [FR/FR]; 2 boulevard du Général Martial Valin 75015 PARIS (FR) (for all designated states)

(72) Inventor(s):
LEMARCHAND, Kevin, Morgane; Safran Aircraft Engines PI (AJI), Rond-Point René Ravaud - Réau 77550 Moissy-Cramayel (FR)
JODET, Norman, Bruno, André; Safran Aircraft Engines PI (AJI) Rond-Point René Ravaud - Réau 77550 Moissy-Cramayel (FR)
MARTIN, Guillaume; Safran Aircraft Engines PI (AJI) Rond-Point René Ravaud - Réau 77550 Moissy-Cramayel (FR)
SOULAT, Laurent; Safran Aircraft Engines PI (AJI), Rond-Point René Ravaud - Réau 77550 Moissy-Cramayel (FR)

(74) Agent(s):
BARBE, Laurent; Cabinet Gevers et Ores 41 avenue de Friedland 75008 PARIS (FR)

(54) Title (EN): TURBOMACHINE FAN FLOW-STRAIGHTENER VANE, TURBOMACHINE ASSEMBLY COMPRISING SUCH A VANE, AND TURBOMACHINE EQUIPPED WITH SAID VANE OR WITH SAID ASSEMBLY
(54) Title (FR): AUBE DE REDRESSEUR DE SOUFFLANTE DE TURBOMACHINE, ENSEMBLE DE TURBOMACHINE COMPRENANT UNE TELLE AUBE ET TURBOMACHINE EQUIPEE DE LADITE AUBE OU DUDIT ENSEMBLE

(57) Abstract:
(EN): The invention relates to a flow-straightener vane (1) of a bypass turbomachine (100) of longitudinal axis (X), the vane (1) comprising a plurality of vane sections (2) stacked radially with respect to the axis (X) along a stacking line (L) between a root end (3) and a tip end (4), each vane section (2) comprising a pressure-face surface (7) and a suction-face surface (8) extending axially between an upstream leading edge (5) and a downstream trailing edge (6) and being tangentially opposed. According to the invention, between the leading (5) and trailing (6) edges of each vane section (2) there is formed a profile chord (CA) the length of which is substantially constant between the tip end (4) and the root end (3), and the stacking line (L) exhibits a curvature in a plane passing more or less through the axis (X) and through the stacking line (L), situated in the vicinity of the tip end (4) and oriented from downstream towards upstream.
(FR): L'invention concerne un aube (1) redresseur de turbomachine (100) double flux d'axe longitudinal (X), l'aube (1) comprenant une pluralité de section d'aube (2) empilées radialement vis-à-vis de l'axe (X) le long d'une ligne d'empilement (L) entre une extrémité de pied (3) et une extrémité de tête (4), chaque section d'aube (2) comprenant une surface intrados (7) et une surface extrados (8) s'étendant axialement entre un bord d'attaque (5) amont et un bord de fuite (6) aval et étant opposées tangentiellement. Selon l'invention, entre les bords d'attaque (5) et de fuite (6) de chaque section d'aube (2) est formée une corde de profil (CA) de longueur sensiblement constante entre l'extrémité de tête (4) et l'extrémité de pied (3), et en ce que la ligne d'empilement (L) présente une courbure, dans un plan passant sensiblement par l'axe (X) et par la ligne d'empilement (L), située au voisinage de l'extrémité de tête (4) et orientée de l'aval vers l'amont.

International search report:
Received at International Bureau: 12 November 2018 (12.11.2018) [EP]

International Report on Patentability (IPRP) Chapter II of the PCT:
Not available

(81) Designated States:
AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
European Patent Office (EPO) : AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR
African Intellectual Property Organization (OAPI) : BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG
African Regional Intellectual Property Organization (ARIPO) : BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW
Eurasian Patent Organization (EAPO) : AM, AZ, BY, KG, KZ, RU, TJ, TM