Device for guiding an element in an orifice in a wall of a turbomachine combustion chamber
AssigneeSnecma
InventorsPatrick AUDIN, Florian Andre Francois Bessagnet, Pierre Pascal Sablayrolles, Guillaume Sevi
Life of this patent
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Abstract
A device for guiding an element in an orifice in a wall of a turbomachine combustion chamber comprises a coaxial ring and bushing mounted one inside the other, the bushing comprising two coaxial annular parts that are fastened to each other by welding and that define a groove for guiding a rim of the ring, welding zones between the parts of the bushing being situated away from the path of the rim of the ring when moved along a privileged transverse direction of ring movement relative to the bushing when the combustion chamber is in operation.
Claims10
A device for guiding an element in an orifice in a wall of a turbomachine combustion chamber, the device comprising a ring and a bushing that are substantially coaxial, one being mounted in the other, the ring being designed to have the element passing axially therethrough and having an outer annular rim that is guided transversely in an inner annular groove of the bushing that is designed to be fastened to the edge of the orifice in the wall of the combustion chamber, the bushing comprising two coaxial annular parts fastened to each other by brazing or welding and defining between them the annular groove for guiding the rim of the ring, and the device having at least one privileged transverse direction for movement of the ring, wherein the two parts of the bushing are fastened to each other via welding or brazing zones, these zones lying away from the path followed by the rim of the ring when it moves relative to the bushing in the privileged direction.
Dependencies are inferred from the claim text.