FIELD: engines and pumps.
SUBSTANCE: invention relates to turbomachines and, in particular, to annular element (13) of a turbomachine casing. Inner face (14), delimits a flow channel for the flow of a working fluid of the turbomachine. Said element comprises outer face (15), and damper (18). Damper (18) comprises plurality of adjacent elastic coils (18a, 18b, 18c) clamped around surface of revolution (15a) of outer face (15), in such a way as to exert pressure against said surface of revolution (15a) and between adjacent coils.
EFFECT: enabling damping of acoustic and vibration loads.
10 cl, 5 dwg
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