Snecma Moteurs

Snecma

Laurent Claude Patrick Salperwyck

Didier Georges Feder

Guy Jean-Louis Lapergue

Bertrand Pierre Renaud Monville

Jacky S Naudet

Daniel Germain Kettler

Emmanuel Christophe Mandet

Jacques-A Roche

A bridge positioned between two parts, such as a nozzle support pipe envelope and a heat shield liner, includes a central part with inversed curvature thus having two contact zones with the nozzle support pipe envelope. Furthermore, the bridge includes two lugs, one of which can be mounted to slide in the heat shield liner.

Positioning bridge guide and its utilisation for the nozzle support pipe of a turboprop

An axisymmetric, converging-diverging exhaust nozzle swiveled by a guided vectoring ring ( ). The guides comprise three axial apertures ( ) which are each located in a base firmly joined to relatively fixed structure and of which the center planes intersect along the longitudinal axis of the turbojet-engine. The side walls ( ) of the apertures ( ) guide three mutually equidistant spherical rollers ( ) fastened to radial stubs ( ) firmly affixed to the vectoring ring ( ).

Axisymmetric, converging-diverging exhaust nozzle swiveled by a guided ring

An axisymmetric, converging-diverging turbojet-engine exhaust nozzle for jet deflection. The diverging flaps are connected by linkrods to a vectoring ring ( ). The vectoring ring ( ) is driven by linear actuators ( ) anchored in the stationary structure ( ). The linear actuators ( ) are connected by a swivel ( ) to the vectoring ring ( ) and are affixed to the stationary structure ( ) to absorb the tangential loads applied by the exhaust gases on the diverging flaps and to allow positioning the vectoring ring ( ). Preferably the linear actuator ( ) is connected by a sheath ( ) to the vectoring ring ( ), the sheath ( ) slidable on the actuator case ( ) and being displaceable in a radial plane passing through the turbojet-engine's axis.

Axisymmetric, converging-diverging, jet-deflecting turbojet-engine exhaust-nozzle

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Lizines, France

Laurent Claude Patrick Salperwyck