US 7,520,135 B2
Variable-section turbomachine nozzle
Mathieu Dakowski, Sucy en Brie (France); Guy Lapergue, Rubelles (France); Romain Lunel, Moissy Cramayel (France); and Guillaume Sevi, Ivry sur Seine (France)
Assigned to SNECMA, Paris (France)
Filed on Oct. 13, 2005, as Appl. No. 11/248,330.
Claims priority of application No. 04 11574 (FR), filed on Oct. 29, 2004.
Prior Publication US 2006/0090470 A1, May 04, 2006
Int. Cl. F02K 1/12 (2006.01)
U.S. Cl. 60—771  [239/265.39] 11 Claims
OG exemplary drawing
 
1. A variable-section nozzle for a turbomachine, said nozzle comprising:
a plurality of movable flaps that form a ring,
a flap control system comprising control levers each associated with a respective movable flap, the control levers comprising both controlled levers that are actuated directly by actuators, and follower levers that are actuated by the controlled levers via transmission links,
wherein, when the turbomachine is not running such that no exhaust stream passes through the ring formed by the movable flaps, the flaps associated with the follower levers present a radial offset relative to the flaps associated with controlled levers.