| 摘要 |
The invention relates to a rotor element (3) that comprising an annular surface portion about the rotor rotational axis, a fluid passage (31) being formed through said surface portion, characterised in that it comprises a passage-blocking means (31), said means including a blocking element (4) that is deformable depending on the rotor rotating speed and arranged so as to adjust the fluid flow depending on the rotor rotating speed, and an annular collar (6) with a free edge (62) engaging with said blocking element (4) so as to form said blocking means, wherein the free edge (62) of the annular collar (6) defines, together with the blocking portion (43) of the blocking element (4), a diaphragm that blocks the fluid passage (31). |
