Patent ID: 11946384
Assignee: SAFRAN AERO BOOSTERS
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 0:
1. A casing for a compressor of a turbomachine, said casing comprising:
a shell extending 360° around an axis or formed of a plurality of angular sectors which together form 360° around the axis, the shell being made, in a cross-section along the axis, of a single and continuous material and comprising a radially inner surface;
an upstream ferrule having an inner surface guiding an airflow, an outer surface facing the inner surface of the shell, a proximal end and a distal end, the proximal end of the upstream ferrule being arranged upstream of the distal end of the upstream ferrule; and
a downstream ferrule having an inner surface guiding the airflow, an outer surface facing the inner surface of the shell, a proximal end and a distal end, the proximal end of the downstream ferrule being arranged downstream of the distal end of the downstream ferrule;
wherein the upstream and downstream ferrules are fixed to the shell in a cantilevered manner, the upstream and downstream ferrules being fixed respectively to the shell only at their respective proximal ends;
and wherein the upstream ferrule and the downstream ferrule are positioned axially such that an axial clearance is formed between their respective distal ends.