公开(公告)号：US20220348314A1

公开(公告)日：2022-11-03

申请号：US17725453

申请日：2022-04-20

Applicant: SAFRAN NACELLES

Inventor： Patrick Gonidec ,  Loïc Chapelain ,  Xavier Carcenac ,  Vincent Lefeuvre

IPC: B64C17/00 ,  B64C11/00

Abstract: A propulsive assembly, in particular for an aircraft, comprising a mast and a propulsion device comprising an engine and a nacelle, the engine comprising a propeller, the propulsive assembly comprising: A standby protection device comprising a first connecting member fixedly mounted to the mast and a second connecting member fixedly mounted to the propulsion device, the second connecting member being rotatably hinged with respect to the first connecting member in at least one degree of freedom, and at least one retaining member keeping the second connecting member fixed with respect to the first connecting member, and configured, in the presence of a predetermined unbalance force on the propeller, to release the standby protection device in order to protect the mast.

公开(公告)号：US11926409B2

公开(公告)日：2024-03-12

申请号：US17725453

申请日：2022-04-20

Applicant: SAFRAN NACELLES

Inventor： Patrick Gonidec ,  Loic Chapelain ,  Xavier Carcenac ,  Vincent Lefeuvre

IPC: B64C17/00 ,  B64C11/00 ,  B64D27/26

CPC classification number: B64C17/00 ,  B64C11/00 ,  B64D27/26 ,  B64D2027/262

Abstract: A propulsive assembly, in particular for an aircraft, comprising a mast and a propulsion device comprising an engine and a nacelle, the engine comprising a propeller, the propulsive assembly comprising:



A standby protection device comprising a first connecting member fixedly mounted to the mast and a second connecting member fixedly mounted to the propulsion device, the second connecting member being rotatably hinged with respect to the first connecting member in at least one degree of freedom, and
at least one retaining member keeping the second connecting member fixed with respect to the first connecting member, and configured, in the presence of a predetermined unbalance force on the propeller, to release the standby protection device in order to protect the mast.

公开(公告)号：US20240253804A1

公开(公告)日：2024-08-01

申请号：US18627959

申请日：2024-04-05

Applicant: Safran Nacelles

Inventor： Vincent DUTOT ,  Jean-Philippe Joret ,  Marc Versaevel ,  Vincent Lefeuvre

IPC: F02K1/34 ,  B64D29/00 ,  F02K1/82

CPC classification number: B64D33/06 ,  B64D29/00 ,  F02K1/827 ,  F05D2220/323 ,  F05D2260/963

Abstract: An air ejection nozzle for a nacelle includes an outer aerodynamic line and an inner aerodynamic line meeting at a trailing edge. The air ejection nozzle includes at discrete positions at least one area of larger thickness that is compensated by at least one fairing to connect the aerodynamic lines to form the trailing edge. The fairing includes an outer wall and an inner wall delimiting a cavity therebetween. The inner wall provides for the continuity of the inner aerodynamic line, and the outer wall is solid and the inner wall is pierced so that the at least one fairing forms an acoustic attenuation structure.