公开(公告)号：US20220162990A1

公开(公告)日：2022-05-26

申请号：US17427565

申请日：2020-02-05

Applicant: SAFRAN NACELLES

Inventor： Sébastien Laurent, Marie Pascal ,  Jean-Michel Paul, Ernest Nogues ,  Marc Versaevel ,  François Chauveau

IPC: F02C7/045 ,  F02C7/047

Abstract: The invention relates to an air intake of an aircraft turbojet engine nacelle extending along an axis X, in which an air flow circulates from upstream to downstream, the air intake comprising an inner wall and an outer wall which are connected by a leading edge and an inner partition so as to delimit an annular cavity, the air intake comprising means for injecting at least one hot air flow into the inner cavity and at least one ventilation orifice formed in the outer wall in order to allow the hot air flow to escape after heating the inner cavity, the air intake comprising at least one acoustic member positioned in the inner cavity facing the ventilation orifice so as to modify the acoustic resonance frequencies and/or to attenuate the acoustic waves formed in the inner cavity via the ventilation orifice.

公开(公告)号：US20220136439A1

公开(公告)日：2022-05-05

申请号：US17427563

申请日：2020-01-22

Applicant: SAFRAN NACELLES

Inventor： Sébastien Laurent, Marie Pascal ,  Jean-Michel Paul, Ernest Nogues ,  Marc Versaevel ,  François Chauveau

IPC: F02C7/047 ,  F02C7/045

Abstract: The invention relates to an air intake of an aircraft turbojet engine nacelle, extending along an axis X, in which an air flow circulates from upstream to downstream, the air intake comprising an inner wall facing the axis X and an outer wall for guiding an external air flow, the walls being connected by a leading edge and an inner partition so as to delimit an annular cavity. The air intake comprises means for injecting at least one hot air flow into the inner cavity and at least one ventilation orifice formed in the outer wall to allow the hot air flow to escape after heating the inner cavity, the ventilation orifice comprising an upstream edge, the circumferential profile of which is discontinuous in order to generate turbulences, and a downstream edge, the radial profile of which is aerodynamic in order to limit the formation of pressure fluctuations.

公开(公告)号：US20220099023A1

公开(公告)日：2022-03-31

申请号：US17427548

申请日：2020-01-22

Applicant: SAFRAN NACELLES

Inventor： Sébastien Laurent, Marie Pascal ,  Jean-Michel Paul, Ernest Nogues ,  Marc Versaevel ,  François Chauveau

IPC: F02C7/047 ,  F02C7/045 ,  B64D15/04

Abstract: The invention relates to an air intake of an aircraft turbojet engine nacelle, extending along an axis X, in which an air flow circulates from upstream to downstream, the air intake extending circumferentially around the axis X and comprising an inner wall, which faces the axis X in order to guide an inner air flow, and an outer wall, which is opposite the inner wall, for guiding an external air flow, the walls being connected by a leading edge and an inner partition so as to delimit an annular cavity. The air intake comprises means for injecting at least one hot air flow into the inner cavity and at least one ventilation orifice formed in the outer wall in order to allow the hot air flow to escape after heating the internal cavity, the air intake comprising at least one disruption member of the external air flow, positioned upstream of the ventilation orifice, which extends outwardly from the outer wall.