Safran Helicopter Engines

Safran Ceramics

Patrick Olivier Duchaine

Eric Conete

Hubert Pascal Verdier

Benjamin Lacombe

Claude Berat

Guillaume Thierry Cottin

Christophe Nicolas Henri Viguier

Pascal Hubert Verdier

Amaury Benoit Jacques Paillard

A turbomachine subassembly including a first component forming a portion of a wall of a combustion chamber of the turbomachine and a second component forming a connecting member connecting the first component to a structural element of the combustion chamber, wherein the two components are made from materials having different coefficients of expansion, and wherein the two components are elements of revolution coaxial with a main axis A of the subassembly, and each including an annular radial wall, the radial walls facing one another and bearing against one another axially in a first direction, wherein the second component includes a plurality of clamping tabs, with the clamping tabs collaborating with the first component in order to produce an axial force causing the radial walls to bear against one another.

Subassembly comprising means for compensating for a difference in expansion

A device for supplying fuel to a combustion chamber of a gas generator includes an injection wheel () for injecting fuel into the combustion chamber (),&#x2014;a fuel supply rail () including an internal fuel circuit () with a fuel outlet means () supplying fuel to an annular spray chamber () formed between the rail () and the injection wheel (),&#x2014;at least one dynamic annular seal () adapted to provide a seal between an annular face () of the fuel supply rail () and the injection wheel (), wherein the internal fuel circuit () of the fuel supply rail includes an annular fuel flow part arranged radially at the dynamic annular seal ().

Device for supplying fuel to a combustion chamber of a gas generator

A fuel supply system for a turbomachine. The supply system includes a starter circuit, at least one first hydraulic resistance and a purge circuit. The purge circuit includes a duct including an opening at the exterior of the supply system. The purge circuit is configured to make purge air flow between a starter injector and the opening through the first hydraulic resistance. The supply system includes a device for measuring a value representative of pressure, which devices are configured to measure a value representative of pressure between the starter injector and the first hydraulic resistance when purge air flows between the starter injector and the first hydraulic resistance.

Clogging monitoring in a starter injector purge circuit for a turbomachine

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Moissy-Cramayel, France

Patrick Olivier Duchaine