US 11,920,517 B2
Aircraft bypass duct heat exchanger
James F. Wiedenhoefer, Windsor, CT (US); Russell J. Bergman, South Windsor, CT (US); William P. Stillman, Westminster, CO (US); and Patrick M. Hart, Newington, CT (US)
Assigned to RTX Corporation, Farmington, CT (US)
Filed by Raytheon Technologies Corporation, Farmington, CT (US)
Filed on Jul. 25, 2022, as Appl. No. 17/872,355.
Application 17/872,355 is a continuation of application No. 17/139,174, filed on Dec. 31, 2020, granted, now 11,448,132.
Claims priority of provisional application 62/971,442, filed on Feb. 7, 2020.
Claims priority of provisional application 62/963,072, filed on Jan. 19, 2020.
Claims priority of provisional application 62/957,091, filed on Jan. 3, 2020.
Prior Publication US 2022/0372914 A1, Nov. 24, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. F02C 9/18 (2006.01); F02C 7/18 (2006.01); F02K 3/115 (2006.01)
CPC F02C 7/185 (2013.01) [F02C 7/18 (2013.01); F02K 3/115 (2013.01); F05D 2260/213 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A turbine engine comprising:
one or more fan sections;
one or more compressor sections aft and downstream of the one or more fan sections along a core flowpath;
a combustor section downstream of the one or more compressor sections along the core flowpath;
one or more turbine sections downstream of the combustor section along the core flowpath;
a bypass flowpath;
an inner case wall along the bypass flowpath;
an array of heat exchanger plates mounted to the inner case wall for providing heat transfer from a first flowpath to the bypass flowpath, wherein each plate has:
first and second faces along the bypass flowpath;
a proximal edge mounted to the inner case wall;
an inlet along the proximal edge;
an outlet along the proximal edge; and
a branch segment of the first flowpath passing from the inlet to the outlet; and
a flange extending radially inward from an inner diameter surface of the inner case wall to separate a downstream segment of the first flowpath exiting the heat exchanger from an upstream segment of the first flowpath entering the heat exchanger, said downstream segment being downstream of said upstream segment with respect to the first flowpath.