US 11,835,304 B2
Heat exchanger with stacked flow channel modules
Chris Vargas, West Hartford, CT (US); and Daniel B. Denis, Simsbury, CT (US)
Assigned to RTX CORPORATION, Farmington, CT (US)
Filed by Raytheon Technologies Corporation, Farmington, CT (US)
Filed on Nov. 2, 2020, as Appl. No. 17/086,928.
Application 17/086,928 is a division of application No. 15/633,169, filed on Jun. 26, 2017, granted, now 10,823,511.
Prior Publication US 2021/0071962 A1, Mar. 11, 2021
Int. Cl. F28D 9/00 (2006.01); F28F 1/42 (2006.01); F28D 1/03 (2006.01); F28F 1/26 (2006.01); F28F 1/16 (2006.01); F28D 1/053 (2006.01); B21D 53/04 (2006.01); B23P 15/26 (2006.01); F01D 25/08 (2006.01); F28F 9/02 (2006.01)
CPC F28D 9/0093 (2013.01) [B21D 53/04 (2013.01); B23P 15/26 (2013.01); F01D 25/08 (2013.01); F28D 1/0308 (2013.01); F28D 1/05366 (2013.01); F28D 9/0031 (2013.01); F28F 1/16 (2013.01); F28F 1/26 (2013.01); F28F 1/42 (2013.01); F28F 1/422 (2013.01); F28F 9/02 (2013.01); F05D 2220/32 (2013.01); F05D 2230/311 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A heat exchanger for a gas turbine engine, comprising:
a first heat exchanger manifold;
a second heat exchanger manifold; and
a stack of flow channel modules arranged and fluidly coupled between the first heat exchanger manifold and the second heat exchanger manifold, the flow channel modules comprising a first flow channel module that includes a first heat exchanger section and a second heat exchanger section;
the first heat exchanger section including a base plate, a plurality of first fins, a plurality of flow channel walls and a plurality of heat transfer augmentors;
the first fins projecting out from a first side of the base plate;
the flow channel walls projecting out from a second side of the base plate, which is opposite the first side of the base plate, to the second heat exchanger section thereby forming a plurality of flow channels between the first heat exchanger section and the second heat exchanger section; and
the heat transfer augmentors projecting out from the second side of the base plate partially into at least one of the flow channels;
wherein a first of the heat transfer augmentors is formed from a different material than the base plate;
wherein a first of the first fins overlaps a first of the flow channel walls at an intermediate location along the base plate;
wherein the base plate has a vertical thickness measured vertically from the first side of the base plate to the second side of the base plate at the intermediate location;
wherein the first of the first fins has a vertical height measured vertically from the first side of the base plate to a distal end of the first of the first fins at the intermediate location; and
wherein the vertical thickness is greater than the vertical height.