A deployable diverging part for a thruster

Details A deployable diverging part for a thruster A deployable diverging part for a thruster

F - Mech Eng,Light,Heat,Weapons

02

K

F02K 9/97 (2006.01)

Patent

CA 2275767

A diverging ring is displaceable between a retracted position in which it surrounds a first portion of a diverging part and a deployed position in which it is connected to a downstream end of the first portion. A deployment mechanism causes the diverging ring to move from its retracted position to its deployed position under drive from actuation means. A temporary structure, or "insert", is placed inside the diverging ring so as to transform the diverging section thereof into a non-diverging section, at least over the major portion of the length of the diverging ring, the insert being eliminatable on or after the diverging ring coming into its deployed position.

Un anneau de divergent (22) est déplaçable entre une position rétractée dans laquelle il entoure une première partie de divergent (20) et une position déployée dans laquelle il se raccorde à une extrémité aval de la première partie de divergent. Un mécanisme de déploiement (30) fait passer l'anneau de divergent de sa position rétractée à sa position déployée grâce à des moyens (44) d'actionnement. Une structure provisoire, ou insert (60), est disposée à l'intérieur de l'anneau de divergent (22) de façon à transformer la veine divergente de celui-ci en une veine non divergente, sur au moins la plus grande partie de la longueur de l'anneau de divergent, l'insert étant éliminable à la venue ou après la venue de l'anneau de divergent dans sa position déployée.

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