公开(公告)号：EP2964947A1

公开(公告)日：2016-01-13

申请号：EP14718652.2

申请日：2014-03-04

申请人： HERAKLES

发明人： CLERMONT, Mathieu ,  REMIGI, Alain ,  LARRIEU, Jean-Michel ,  MARLIN, Philippe

IPC分类号： F02K9/86

CPC分类号： F02K9/86 ,  F02K9/08 ,  F02K9/26

摘要： A device for modulating a gas ejection section (100) comprising a partial sealing member (111) for partially sealing a nozzle neck (13), a control guide (112) for controlling the sealing member (111), a main piston (120) and a priming piston (130). The control guide (112) is movable between a retracted position in which the partial sealing member (111) is retracted relative to the nozzle neck (13) and a sealing position in which the partial sealing member (111) is in contact with the nozzle neck (13). The priming piston (130) is movable between an idle position and a priming position of the main piston (120) when the pressure in the modulation device reaches a first predefined value. The main piston (120) is movable between a first locked position that locks the movement of the control guide (112) in the retracted position of same and a second locked position that locks the control guide (112) when the pressure in the modulation device reaches a second predefined value lower than the first predefined value.