US 12,467,367 B2
Platform for stator vane
Bogachan Alpan, Derby (GB)
Assigned to ROLLS-ROYCE PLC, London (GB)
Filed by ROLLS-ROYCE plc, London (GB)
Filed on Aug. 25, 2023, as Appl. No. 18/237,938.
Claims priority of application No. 2213804 (GB), filed on Sep. 22, 2022.
Prior Publication US 2024/0102393 A1, Mar. 28, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. F01D 5/18 (2006.01); F01D 9/04 (2006.01); F01D 9/06 (2006.01)
CPC F01D 5/188 (2013.01) [F01D 9/041 (2013.01); F01D 9/06 (2013.01); F01D 9/065 (2013.01); F05D 2220/323 (2013.01); F05D 2230/232 (2013.01); F05D 2230/237 (2013.01); F05D 2240/80 (2013.01); F05D 2240/81 (2013.01); F05D 2260/2212 (2013.01); F05D 2260/22141 (2013.01); F05D 2260/36 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A platform for a stator vane, the platform including a platform body and a plug,
wherein the platform body defines:
an inner surface,
an outer surface offset from the inner surface,
an internal fluid passageway disposed between the outer surface and the inner surface, and
a core aperture extending from the outer surface to the internal fluid passageway, the core aperture having a geometrical centerline and an internal perimeter;
wherein the plug is configured to be secured to the platform body;
wherein the plug is configured to occupy no less than 50% of the core aperture by volume whilst secured to the platform body to at least partially eliminate recirculation of a fluid conveyed by the internal fluid passageway within the core aperture,
wherein the plug is configured to abut an internal protrusion formed within the core aperture, the internal protrusion extending in a direction away from the internal perimeter of the core aperture toward the geometrical centerline of the core aperture,
wherein the plug is a single unitary structure,
wherein the internal perimeter is straight from the outer surface to the internal protrusion,
wherein the platform body defines a plurality of protrusions extending into the internal fluid passageway,
wherein the plug is configured to abut the plurality of protrusions defined by the platform body, and
wherein the plug includes at least one protrusion configured to extend away from a lower portion of the plug and into the internal fluid passageway.