US 12,292,015 B2
Aircraft nacelle equipped with at least one thrust reversal device comprising a downstream deflector, aircraft comprising at least one propulsion unit having such a nacelle
Frédéric Chelin, Toulouse (FR); Christophe Bourdeau, Toulouse (FR); and Olivier Scholz, Toulouse (FR)
Assigned to Airbus Operations SAS, Toulouse (FR)
Filed by Airbus Operations SAS, Toulouse (FR)
Filed on Apr. 24, 2024, as Appl. No. 18/644,977.
Claims priority of application No. 2304214 (FR), filed on Apr. 26, 2023.
Prior Publication US 2024/0360801 A1, Oct. 31, 2024
Int. Cl. F02K 1/72 (2006.01); F02K 1/62 (2006.01); F02K 1/76 (2006.01)
CPC F02K 1/72 (2013.01) [F02K 1/625 (2013.01); F02K 1/763 (2013.01); F02K 1/766 (2013.01); F05D 2240/129 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An aircraft nacelle comprising:
an upstream end and a downstream end, the aircraft nacelle configured to channel an air stream flowing in a longitudinal direction from the upstream end to the downstream end, and,
at least one thrust reversal device which comprises:
at least one lateral opening which is remote from the upstream and downstream ends, passes through the nacelle and is delimited by a downstream edge,
at least one movable cowl portion configured to occupy a first position, corresponding to an inactivated state of the at least one thrust reversal device, in which the at least one movable cowl portion shuts off the at least one lateral opening, and a second position, corresponding to an activated state of the at least one thrust reversal device, in which the at least one movable cowl portion at least partially clears the at least one lateral opening, the movable cowl portion including an inner wall and an outer wall defining a cavity, and
at least one panel configured to occupy a first position, when the at least one thrust reversal device is in the inactivated state, in which the at least one panel does not interfere with the air stream channeled in the nacelle, and a second position, when the at least one thrust reversal device is in the activated state, in which the at least one panel interferes with the air stream channeled in the nacelle and orients the air stream toward the at least one lateral opening,
at least one orientation system configured to orient the air stream deflected by the at least one panel, the at least one orientation system surrounded by the cavity when the movable cowl portion is in the first position and exposed from the cavity when the movable cowl portion is in the second position, wherein the at least one orientation system comprises:
a support comprising a first crossmember positioned at a radial position of the at least one lateral opening with respect to a centerline of the nacelle and at a circumferential position approximately 180 degrees from a second crossmember which is also positioned at the radial position of the at least one lateral opening,
at least one transverse deflector positioned approximately in a plane perpendicular to the longitudinal direction and configured to orient the air stream deflected by the at least one panel toward the upstream end of the nacelle, said at least one transverse deflector having at least one edge extending circumferentially between a first transverse deflector end connected to the first crossmember and a second transverse deflector end connected to the second crossmember of the support to form a continuous circumferential space between the first crossmember, the second crossmember, and the at least one transverse deflector, and,
at least one downstream deflector positioned at the downstream edge of the at least one lateral opening and configured to deflect the air stream deflected by the at least one panel toward the upstream end of the nacelle, wherein a curvature of the at least one downstream deflector deflects the air stream away from the outer wall of the movable cowl portion.