Patent ID: 9643714
Date: 2017-05-09
CPC Classifications: B64C,B64D

Claim:
1. An aircraft propulsion unit comprising: a nacelle surrounding a propulsion member, the nacelle being substantially cylindrical and centered about a longitudinal axis and having a first and a second fan cowl arranged on both sides of a first plane of symmetry of the nacelle comprising the longitudinal axis, said fan cowls being movable between a closed position in which a lower side of the first fan cowl and a lower side of the second fan cowl are contiguous and an open position in which said lower sides are spaced apart, the nacelle moreover comprising a spacing mechanism having a first and a second elastic member, the first elastic member being fixed to the first fan cowl and the second elastic member being fixed to the second fan cowl, the nacelle further comprising at least one lateral locking mechanism having an anchoring point fixed to the nacelle and a movable member fixed to one of the first or the second fan cowl, and the movable member being capable of being displaced towards a deployed position in which the movable member is fixed to the anchoring point when the fan cowl is in the closed position, wherein each of said elastic members comprises a body confining an elastic element and a first end of a rod, the elastic element exerting a force on said first end, such that one free end of the rod extends beyond the body in a plane perpendicular to the longitudinal axis, the spacing mechanism moreover comprising a stop that is fixed in relation to the nacelle, the stop comprising a planar wall in the first plane of symmetry, the free end of the rod of each of said elastic members being supported against said planar wall when the fan cowl on which said elastic member is fixed is displaced towards the closed position.