US 12,000,297 B2
Endwall plug cooling system
Jack Moody, Indianapolis, IN (US); and Kevin P. Holley, Indianapolis, IN (US)
Assigned to Rolls-Royce North American Technologies Inc., Indianapolis, IN (US); and Rolls-Royce Corporation, Indianapolis, IN (US)
Filed by Rolls-Royce North American Technologies Inc., Indianapolis, IN (US); and Rolls-Royce Corporation, Indianapolis, IN (US)
Filed on Sep. 21, 2023, as Appl. No. 18/471,898.
Application 18/471,898 is a continuation of application No. 17/556,524, filed on Dec. 20, 2021, granted, now 11,788,431.
Prior Publication US 2024/0011414 A1, Jan. 11, 2024
Int. Cl. F01D 25/12 (2006.01); F01D 9/04 (2006.01); F01D 21/00 (2006.01)
CPC F01D 25/12 (2013.01) [F01D 9/04 (2013.01); F01D 21/003 (2013.01); F05D 2240/128 (2013.01); F05D 2260/201 (2013.01); F05D 2260/202 (2013.01); F05D 2260/232 (2013.01); F05D 2260/80 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A cooling system, comprising:
a nozzle guide vane endwall, comprising:
a first wall comprising a first opening that extends completely through the first wall into a primary flow path of a high-pressure turbine, and
a second wall comprising a second opening and a third opening that extend completely through the second wall into an inner passageway of the nozzle guide vane endwall, wherein
the inner passageway is configured to direct a cooling fluid to the first opening and/or the second opening via at least the third opening, and
the first and second opening are configured to receive a plug or a probe.