US 12,084,976 B2
Dynamic sealing assembly
Christopher A. Murray, Nottingham (GB); and Nicholas Howarth, Derby (GB)
Assigned to Rolls-Royce PLC, London (GB)
Filed by Rolls-Royce plc, London (GB)
Filed on Sep. 8, 2023, as Appl. No. 18/463,633.
Claims priority of application No. 2213999 (GB), filed on Sep. 26, 2022.
Prior Publication US 2024/0102399 A1, Mar. 28, 2024
Int. Cl. F01D 11/00 (2006.01); F01D 15/08 (2006.01); F01D 17/14 (2006.01)
CPC F01D 11/001 (2013.01) [F01D 15/08 (2013.01); F01D 17/143 (2013.01); F05D 2240/56 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A dynamic sealing assembly for a rotary machine, comprising:
a primary sandwich plate comprising a plurality of primary vane openings;
a secondary sandwich plate comprising a plurality of secondary vane openings; and
a bristle pack comprising a plurality of bristles disposed between the primary sandwich plate and the secondary sandwich plate;
wherein each of the plurality of primary vane openings overlies and aligns with a respective secondary vane opening to form a vane channel for receiving a vane along a longitudinal axis of the dynamic sealing assembly; and
wherein the bristle pack is configured to:
provide a brush seal between each vane received within the respective vane channels and the dynamic sealing assembly; and
allow relative movement between the dynamic sealing assembly and the vane received within each vane channel along the longitudinal axis.