US 12,454,894 B1
Methods and apparatus to control a surface of an aircraft engine
Vincenzo Martina, Turin (IT); Jeffrey D. Clements, Evendale, OH (US); Kevin Graziano, Evendale, OH (US); and Arthur W. Sibbach, Boxford, MA (US)
Assigned to General Electric Company, Evendale, OH (US); and GE AVIO S.R.L., Turin (IT)
Filed by General Electric Company, Evendale, OH (US); and GE AVIO S.R.L, Turin (IT)
Filed on Nov. 12, 2024, as Appl. No. 18/945,171.
Int. Cl. F01D 11/24 (2006.01)
CPC F01D 11/24 (2013.01) [F05D 2220/323 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system to control a surface in an aircraft engine, the system comprising:
a first valve to vary a flow of cold fluid from a thermal transfer bus (TTB) to an active surface control (ASC) system, the first valve configured to enable the surface to contract with the cold fluid based on an operating condition of the aircraft engine, the ASC system positioned adjacent to the surface, the first valve positioned upstream from the surface; and
a second valve to vary a flow of hot fluid from the TTB to the ASC system, the second valve configured to enable the surface to expand with the hot fluid based on the operating condition, the second valve positioned downstream from the surface.