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Machine translation
1. (WO2012114030) ANNULAR COMBUSTION CHAMBER FOR A TURBINE ENGINE INCLUDING IMPROVED DILUTION OPENINGS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2012/114030    International Application No.:    PCT/FR2012/050355
Publication Date: 30.08.2012 International Filing Date: 20.02.2012
IPC:
F23R 3/06 (2006.01)
Applicants: SNECMA [FR/FR]; 2, boulevard du Général Martial Valin F-75015 Paris (FR) (For All Designated States Except US).
LEBLOND, Nicolas, Christian, Raymond [FR/FR]; (FR) (For US Only).
BUNEL, Jacques, Marcel, Arthur [FR/FR]; (FR) (For US Only).
LAINS, Dominique, Maurice, Jacques [FR/FR]; (FR) (For US Only)
Inventors: LEBLOND, Nicolas, Christian, Raymond; (FR).
BUNEL, Jacques, Marcel, Arthur; (FR).
LAINS, Dominique, Maurice, Jacques; (FR)
Agent: AUGARDE, Eric; BREVALEX 56, boulevard de l'Embouchure B.P. 27519 F-31075 Toulouse Cedex 2 (FR)
Priority Data:
1151561 25.02.2011 FR
Title (EN) ANNULAR COMBUSTION CHAMBER FOR A TURBINE ENGINE INCLUDING IMPROVED DILUTION OPENINGS
(FR) CHAMBRE ANNULAIRE DE COMBUSTION DE TURBOMACHINE COMPRENANT DES ORIFICES DE DILUTION AMELIORES
Abstract: front page image
(EN)The invention relates to an annular wall for a turbine engine combustion chamber, including an annular row of dilution openings including openings (40) having a larger surface are and openings (62) having a smaller surface area, as well as a multi-perforation consisting of micro-perforations (46) distributed in an upstream row (48), a downstream row (50), and at least one intermediate row (52) cut off by said openings, a geometric ratio being defined as the quotient of dividing the maximum spacing L between any two given points of the edge of said opening in a direction parallel to an axis of said wall by the maximum spacing L between any two given points of the edge of said opening measured in a direction perpendicular to said axis, said geometric ratio of said openings having a larger surface area being no lower than 1, and said geometric ratio of said openings having a smaller surface area being greater than that of said openings having a larger surface area.
(FR)Paroi annulaire pour chambre de combustion de turbomachine, comprenant une rangée annulaire d'orifices de dilution comprenant des orifices (40) de plus grande superficie et des orifices (62) de plus petite superficie, ainsi qu'une multiperforation formée de micro-perforations (46) réparties en une rangée amont (48), une rangée aval (50) et au moins une rangée intercalaire (52) interrompue par lesdits orifices, un rapport géométrique étant défini comme le quotient de la division de l'écartement maximal L entre deux points quelconques du bord de cet orifice selon une direction parallèle à un axe de ladite paroi par l'écartement maximal L entre deux points quelconques du bord de cet orifice mesuré selon une direction perpendiculaire audit axe, ledit rapport géométrique desdits orifices de plus grande superficie étant supérieur ou égal à 1, et ledit rapport géométrique desdits orifices de plus petite superficie étant supérieur à celui desdits orifices de plus grande superficie.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, 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.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (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 (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: French (FR)
Filing Language: French (FR)