Patent ID: 6725664
Filing Date: 2004-04-27
Classification: F02K,Y02T

Abstract:
A shut-off system for an orifice of a duct, which comprises:a shutter capable of completely shutting off said orifice of the duct; and a controllable actuating device capable of acting on said shutter to uncover said orifice, wherein said shutter comprises a removable cap which is held on said duct in such a way as to completely shut off said orifice and a locking device which keeps said cap on said duct by at least one locked jaw, which is unlockable, and wherein said actuating device comprises at least one controllable striker means which is capable of unlocking said jaw in such a way as to cause the cap to be ejected from said duct and to uncover said orifice, wherein said striker means acts on a trap which is operable to move under the action of said striker means, and wherein said striker means comprises: at least one projectile which is capable of moving said trap when it is projected into the latter; and a controllable projection means which is capable of projecting said projectile and which is arranged outside said duct while at the same time being oriented in such a way as to be able to project said projectile into said trap.