EP 2771618 A2 20140903 - ANNULAR WALL OF A COMBUSTION CHAMBER WITH IMPROVED COOLING AT THE PRIMARY AND/OR DILUTION HOLES
Title (en)
ANNULAR WALL OF A COMBUSTION CHAMBER WITH IMPROVED COOLING AT THE PRIMARY AND/OR DILUTION HOLES
Title (de)
RINGFÖRMIGE BRENNKAMMERWAND MIT VERBESSERTER KÜHLUNG AN DEN PRIMÄR- UND/ODER VERDÜNNUNGSLUFTLÖCHERN
Title (fr)
PAROI ANNULAIRE DE CHAMBRE DE COMBUSTION À REFROIDISSEMENT AMÉLIORÉ AU NIVEAU DES TROUS PRIMAIRES ET/OU DE DILUTION
Publication
Application
Priority
- FR 1159704 A 20111026
- FR 2012052446 W 20121025
Abstract (en)
[origin: WO2013060987A2] An annular wall of a combustion chamber (10) of a turbo engine, comprising a cold side (16a, 18a) and a hot side (16b, 18b), a plurality of primary and dilution holes (30) distributed in a circumferential row to allow air circulating on the cold side (16a, 18a) of the annular wall to penetrate into the hot side (16b, 18b) in order provide the dilution of an air/fuel mixture; and a plurality of cooling holes (32) to allow air circulating on the cold side (16a, 18a) of the annular wall to penetrate into the hot side (16b, 18b) in order to form a film of cooling air along the annular wall, the cooling holes being distributed in a plurality of circumferential rows spaced axially apart from one another, and the geometrical axes of each of the cooling holes being inclined, in an axial direction of flow D of the combustion gases, by an angle of inclination Theta1 relative to a normal N of the annular wall; the wall further comprising a plurality of additional cooling holes (34) arranged directly downstream from the dilution holes and distributed in a plurality of circumferential rows spaced axially apart from one another, the geometrical axes of each of the additional cooling holes being arranged in a plane perpendicular to said axial direction D and inclined by an angle of inclination Theta2 relative to a normal N of said annular wall.
IPC 8 full level
F23R 3/06 (2006.01)
CPC (source: EP US)
F23R 3/002 (2013.01 - US); F23R 3/06 (2013.01 - EP US); F23R 2900/03041 (2013.01 - EP US); F23R 2900/03042 (2013.01 - US)
Citation (search report)
See references of WO 2013060987A2
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)
WO 2013060987 A2 20130502; WO 2013060987 A3 20140220; BR 112014010215 A2 20170613; BR 112014010215 A8 20170620; CA 2852393 A1 20130502; CA 2852393 C 20200804; CN 103958970 A 20140730; CN 103958970 B 20160824; CN 203147824 U 20130821; EP 2771618 A2 20140903; EP 2771618 B1 20170614; EP 2771618 B8 20170816; EP 3267111 A2 20180110; EP 3267111 A3 20180228; EP 3267111 B1 20220216; FR 2982008 A1 20130503; FR 2982008 B1 20131213; IN 3138DEN2014 A 20150522; JP 2014531015 A 20141120; JP 6177785 B2 20170809; RU 2014121037 A 20151210; US 10551064 B2 20200204; US 2014260257 A1 20140918
DOCDB simple family (application)
FR 2012052446 W 20121025; BR 112014010215 A 20121025; CA 2852393 A 20121025; CN 201220552119 U 20121025; CN 201280052210 A 20121025; EP 12790620 A 20121025; EP 17175880 A 20121025; FR 1159704 A 20111026; IN 3138DEN2014 A 20140421; JP 2014537695 A 20121025; RU 2014121037 A 20121025; US 201214352946 A 20121025