| 摘要 |
A sealing ring (17; 17'; 17") for a seal assembly (6) is described that comprises: a main body (40, 41) rotating about an axis (A); and a first surface (19), which is defined by the main body (40, 41), extends transversely to the axis (A) and is suitable for abutting against a further sealing ring (18) in a direction parallel to the axis (A); the first surface (19) comprises a plurality of grooves (35a, 35b; 35a', 35b'; 35a", 35b") forming respective hydropads; the grooves (35a, 35b; 35a', 35b'; 35a", 35b") are delimited by a first edge (36; 36'; 36") and a second edge (37; 37'; 37") facing one another; the first edge (36; 36'; 36") and the second edge (37; 37'; 37") delimit the grooves (35a, 35b; 35a', 35b'; 35a", 35b") in a circumferential direction to said axis (A); at least one of the first edge (36; 36' ; 36") and the second edge (37; 37'; 37") is shaped like an elliptical arc, which has coincident or separate foci. |
