Turbomeca

Snecma

Snecma Moteurs

Safran Helicopter Engines

Jean-Baptiste Arilla

Denis Chanteloup

Alain Dominique Gendraud

Pierre Biscay

Pierre Michel Baude

Isabelle Germaine Claude Ladeveze

Pierre-Yves Maillard

Yvan Lameignere

Denis Boisseleau

Michel Beaucoueste

Michel Clastre

Stephane Didier Durand

Alain Marc Bromann

Stéphane Didier Durand

A positioning member for presenting a ring segment for a turbine wheel mounted to rotate about an axis inside a casing. The member presents: a fastener portion for fastening to the casing; a resilient portion forming a spring; and a bearing portion connected to the resilient portion and serving to bear axially against the ring segment such that when the member is mounted the ring segment is pressed axially against a portion of the casing by the positioning member.

Ring segment positioning member

To achieve accurate and rapid acquisition or distribution of fluid&#x2014;at multipoints&#x2014;with good spatial resolution and minimal bulk, a twisted arrangement of ducts is provided in the acquisition/distribution zone making it possible to perform several acquisitions/distributions over several heights with one and the same device. The device is a pressure probe in which a probe body exhibits a first part or section for acquiring pressure forming a cylinder less than 6 mm in diameter. The probe exhibits internal ducts forming parallel helicoidal traces on the section and channels formed in a metal alloy body between the ducts and inlet orifices. The number of internal ducts is advantageously equal to nine, including three orifices being disposed over three different heights of the probe body.

Device for multipoint acquisition/distribution of fluid, in particular probe for tapping pressure in a turbomachine air inlet

A turbine wheel includes: a plurality of blades, a rotor including a disk having the blades mounted at a periphery thereof, each blade including an airfoil with a foot secured to a platform carrying an attachment member engaged in a housing that opens into the periphery of the disk and that extends axially between two opposite side faces of the disk, the housings being spaced apart from one another by portions of the disk that form teeth, and an axial retention plate retaining the blades on the disk and including a retention plate situated on one side of the disk. On the other side of the disk, the teeth of the disk present portions in relief that project radially and that form abutments pressing axially against the portions in relief that are formed under the platforms of the blades and that are set back relative to side faces of the attachment members situated beside a second side face of the disk, and side faces of the attachment members of the blade and of the disk at its periphery are situated in substantially a same plane on each side of the disk.

Turbine wheel with an axial retention system for vanes

The soundproofed exhaust duct for a turbine engine comprises a perforated inner shell defining a flow passage, and a solid outer shell, the inner and outer shells defining between them a space that is closed at the upstream and downstream ends of said space. A core extends between the inner and outer shells at a distance therefrom, and contains at least one sound energy dissipating layer made up of hollow beads that are held against one another. A frame with upstream and downstream portions connected together by longitudinal members supports the core and partitions it into a plurality of boxes that are filled with hollow beads that are held between perforated textures, the frame being secured to the outer shell and/or to the inner shell via at least one of its upstream and downstream portions.

Soundproof exhaust pipe for a turbine engine

Growing community of inventors

Pau, France

Jean-Baptiste Arilla