Snecma Moteurs

Snecma

Jean-Louis Bertrand

Jean-Marc Claude Perrollaz

Frederic Paul Eichstadt

Jean-Francois Laurent Chabot

Frederic Eichstadt

Joel Mathieu

Leopold Jean-Marie De-Verduzan

Francis Dome

Julien Girardot

Stephanie Pariset

A rotor disc includes a rim and a balancing device, which includes housings formed in the rim, and balancing masses housed in at least some of the housings.

Rotor disk balancing device, disk fitted with such a device and rotor with such a disk

The invention relates to a rotation-locking device of a sector of rectifier blades () mounted in a sector of the turbojet housing. A sector of blades comprises a support base (). A housing sector comprises two recesses perpendicular to the axis of the housing, each receiving an edge (--) of the support base. At one and the same axial end of the housing sector, each recess opens out into a seat (--) defining an axial face (-). The device comprises an axial stop () adapting itself on each side in the seats (--) of the two recesses, and once the complementary sector of the housing is installed and during operation of the turbojet, bearing on the axial faces (-) under the thrust of the complementary sector of rectifier blades in order to provide rotation locking.

Rotation-locking of sectors of rectifier blades by bars in the parting planes of the housing

A fixed guide vane assembly includes a circular casing composed of at least two parts () and supporting sectors (), each composed of an inner segment () and an outer segment () connected by vanes (). The parts of the casing and the sectors of the guide vane assembly are held together by a system forming a slide and a slider. An anti-rotation mechanism () is provided to prevent the sectors from rotating with respect to the casing.

Fixed guide vane assembly separated into sectors for a turbomachine compressor

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Livry sur Seine, France

Jean-Louis Bertrand