Radial turbomachine

A radial turbomachine, comprising:

• a fixed case (6);
• at least one rotor disc (2, 2′, 2″) installed in the case (6) and having rotor blades (3, 3′, 3″) mounted at least on a front face (4, 4′, 4″) thereof, in which the rotor disc (2, 2′, 2″) is rotatable in the case (6) around a respective rotation axis (X-X);
• a plurality of projecting elements (25, 35) projecting from the case (6) and terminating in proximity to the rotor disc (2, 2′, 2″);
• and
• at least one support plate (17, 37) installed in the case (6);
• wherein said support plate (17, 37) bears said projecting elements (25, 35) projecting from the case (6);
• wherein said at least one support plate (17, 37) is radially extended across from the rotor disc (2, 2′, 2″),
• wherein the support plate (17, 37) comprises:
• a plurality of first circular portions (29) concentric with the rotation axis (X-X), wherein said first circular portions (29) bear said projecting elements (25, 35);
• and
• a plurality of second circular portions (30) radially interposed between the first circular portions (29),
• wherein the second circular portions (30) are configured to deform to a greater extent, along radial directions, than the first circular portions (29) in a manner so as to allow relative movements between the first circular portions (29) when the support plate (17, 37) is subjected to action of thermal gradients;
• wherein each of the second circular portions (30) comprises a plurality of flexible bodies, having a main extension that is transverse with respect to the radial directions;
• wherein the flexible bodies are cylindrical or conical walls (33) coaxial with the rotation axis (X-X).