US 11,926,409 B2
Propulsive assembly, in particular for an aircraft, for protection against an unbalance force and method of protection
Patrick Gonidec, Moissy Cramayal (FR); Loic Chapelain, Moissy Cramayal (FR); Xavier Carcenac, Moissy Cramayal (FR); and Vincent Lefeuvre, Moissy Cramayal (FR)
Assigned to SAFRAN NACELLES, Gonfreville-l'Orcher (FR)
Filed by SAFRAN NACELLES, Gonfreville-l'Orcher (FR)
Filed on Apr. 20, 2022, as Appl. No. 17/725,453.
Claims priority of application No. 2104170 (FR), filed on Apr. 21, 2021.
Prior Publication US 2022/0348314 A1, Nov. 3, 2022
Int. Cl. B64C 17/00 (2006.01); B64C 11/00 (2006.01); B64D 27/26 (2006.01)
CPC B64C 17/00 (2013.01) [B64C 11/00 (2013.01); B64D 27/26 (2013.01); B64D 2027/262 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A propulsive assembly comprising a mast and a propulsion device supported by the mast, said propulsion device comprising an engine and a nacelle wrapping the engine, said engine comprising a propeller rotatable along an axis of rotation driven by the engine, 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 with at least two degrees of freedom, and
a single retaining member keeping the second connecting member fixed with respect to the first connecting member, said single retaining member being configured, in the presence of a predetermined unbalance force on the propeller, to release the at least two degrees of freedom of the standby protection device in order to protect the mast.