US 11,891,965 B2
Turbojet engine nacelle with a cascade thrust reverser comprising a flap control sector
François Bellet, Moissy Cramayel (FR); Jérôme Corfa, Moissy Cramayel (FR); and Julien Van Den Driessche, Moissy Cramayel (FR)
Assigned to Safran Nacelles, Gonfreville l'Orcher (FR)
Filed by Safran Nacelles, Gonfreville l'Orcher (FR)
Filed on Mar. 18, 2021, as Appl. No. 17/205,172.
Application 17/205,172 is a continuation of application No. PCT/FR2019/052124, filed on Sep. 13, 2019.
Claims priority of application No. 18/58429 (FR), filed on Sep. 18, 2018.
Prior Publication US 2021/0207558 A1, Jul. 8, 2021
Int. Cl. F02K 1/72 (2006.01); F02K 1/76 (2006.01)
CPC F02K 1/72 (2013.01) [F02K 1/763 (2013.01); F05D 2220/323 (2013.01); F05D 2260/52 (2013.01); F05D 2270/051 (2013.01)] 27 Claims
OG exemplary drawing
 
1. An engine nacelle of a bypass turbojet engine type disposed along a main axis, the engine nacelle comprising:
a thrust reverser system having at least one movable cowl movable axially between a direct jet front position and a reverse jet rear position which tilts a plurality of pivoting flaps while at least partially closing an annular flow path, and which opens lateral openings of the annular flow path upstream of the plurality of pivoting flaps, equipped with thrust reverser cascades returning a cold air flow towards outside forwards, wherein each movable cowl includes:
a control sector sliding in a transverse plane relative to the main axis;
a return device connecting a fixed portion of the engine nacelle to the control sector to slide the control sector to a reversal position when the at least one movable cowl is recoiled; and
a plurality of flap tie-rods connecting the control sector to the plurality of pivoting flaps disposed in front of the at least one movable cowl and movable by the control sector, the plurality of flap tie-rods tilting the plurality of pivoting flaps by closing the annular flow path upon movement by the control sector when sliding the control sector towards the reversal position,
wherein each flap of the plurality of flaps includes a safety hook fixed to the control sector, the safety hook securing the reversal position by applying on the flap in the direct jet position, a force parallel to a movement of the flap.