US 11,788,425 B2
Gas turbine engine with clearance control system
Ashish Sharma, Munich (DE); Piotr Jerzy Kulinski, Warsaw (PL); Adam Tomasz Pazinski, Warsaw (PL); Tomasz Jan Bulsiewicz, Warsaw (PL); and Scott Alan Schimmels, Miamisburg, OH (US)
Assigned to General Electric Company, Schenectady, NY (US); General Electric Deutschland Holding GmbH, Frankfurt (DE); and General Electric Company Polska Sp. z o.o., Warsaw (PL)
Filed by General Electric Company, Schenectady, NY (US); General Electric Deutschland Holding GmbH, Frankfurt (DE); and General Electric Company Polska Sp. z o.o., Warsaw (PL)
Filed on Dec. 23, 2021, as Appl. No. 17/561,156.
Claims priority of application No. 439449 (PL), filed on Nov. 5, 2021.
Prior Publication US 2023/0146084 A1, May 11, 2023
Int. Cl. F01D 11/24 (2006.01); F01D 11/18 (2006.01); F01D 25/24 (2006.01); F01D 9/04 (2006.01)
CPC F01D 11/18 (2013.01) [F01D 9/04 (2013.01); F01D 11/24 (2013.01); F01D 25/24 (2013.01); F01D 25/246 (2013.01); F05D 2220/32 (2013.01); F05D 2260/201 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A gas turbine engine, wherein the gas turbine engine defines an axial direction, a centerline axis parallel to the axial direction, a radial direction extended from the centerline axis, and a circumferential direction relative to the centerline axis, the gas turbine engine comprising:
a first turbine rotor assembly comprising a plurality of first turbine rotor blades extended within a gas flowpath; and
a casing surrounding the first turbine rotor assembly, wherein the casing comprises
an outer casing wall extended around the first turbine rotor assembly;
a plurality of vanes extended from the outer casing wall and within the gas flowpath at a location aft of the first turbine rotor assembly; and
a thermal control ring positioned outward along the radial direction from the outer casing wall, and wherein the thermal control ring comprises a body and a plurality of pins, and wherein the plurality of pins are positioned radially outward from the outer casing wall and radially inward from the body of the thermal control ring.