| 摘要 |
<p>There is disclosed an annulus filler (21) for mounting to a rotor disc (22) of a gas turbine engine and for bridging the gap between two adjacent blades (25) attached to the rotor disc. The annulus filler comprises a first part (20) which is connectable to the rotor disc between the positions of said adjacent blades, preferably before the blades are connected to the rotor disc. The annulus filler also comprises a separate second part (38) which is configured for engagement with the first part after the adjacent rotor blades have been connected to the rotor disc. The filler is characterised in that said first part has, in transverse cross-section, a pair of spaced-apart and generally radially oriented arms (26) resiliently biased towards an installation configuration in which it is spaced from each said blade by a respective clearance gap (G), and an operational configuration in which it contacts each of said blades. Engagement of the second part with the first part is effective to urge the first part from said installation configuration to said operational configuration and thus into contact with said blades. The first part may have at least one mounting region for connection to the rotor disc and be configured to allow, in said first step of said procedure, the or each mounting region to remain visible from a radially outer viewpoint. A method of mounting an annular filler to a rotor disc of a gas turbine engine is also disclosed.</p> |
