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Pub. No.:    WO/2014/202903    International Application No.:    PCT/FR2014/051512
Publication Date: Thu Dec 25 00:59:59 CET 2014 International Filing Date: Thu Jun 19 01:59:59 CEST 2014
IPC: F04D 29/22
F04D 29/28
Applicants: CRYOSTAR SAS
Inventors: SGAMBATI, Stéphane
This centrifugal rotor (2) comprises: - a hub (10) having a longitudinal axis (8), - a fluid inlet (20), - a first flange referred to as upstream flange (12) and having an opening (22) around the hub (10), - a second flange referred to as downstream flange (14) separated from the first flange by blades (16) thus forming ducts each delimited by the first flange (12), the second flange (14) and two blades (16) and extending from the fluid inlet (20) to a peripheral outlet (26), near the peripheral outlet (26) the first flange (12) having a concave zone (32) facing towards the ducts whereas the second flange (14) itself has a convex zone (34) facing towards the ducts.