Assembly comprising a rotatable component

摘要

An assembly, for example in a gas turbine engine, includes a rotatable component supported by a bearing in a support structure. A sealing arrangement includes a non-rotating sealing ring which makes sealing contact with sealing features on the rotatable component. The non-rotating sealing ring is radially displaceable with respect to the support structure by means of ribs which engage axially facing support faces of the support structure. The non-rotating sealing ring is radially located by an outer, non-rotating, race of the bearing, by means of a locating surface on a locating body of the non-rotating sealing ring. As a result of this arrangement, the running clearance at the sealing arrangement can be maintained, despite radial displacement of the rotatable component with respect to the support structure, and despite thermal and mechanical deflections of the support structure.

主权项

1. An assembly comprising:
a rotatable component supported by a bearing for rotation relative to a support structure, the bearing comprising a rotating race which is rotatable with the rotatable component and a non-rotating race carried by the support structure; and a sealing arrangement comprising a non-rotating sealing ring,
the non-rotating sealing ring making sealing contact with a rotating sealing feature on the rotatable component,the non-rotating sealing ring making contact with the non-rotating race,the non-rotating sealing ring having a first section with an extension that is connected directly to the non-rotating race that prevents the first section from moving relative to the non-rotating race in a radial direction, andthe non-rotating sealing ring having a second section with a radially-extending rib that allows the second section to move relative to the support structure in the radial direction and that prevents the second section from moving relative to the support structure in an axial direction.