US 12,292,244 B2
Additively manufactured heat exchanger layer
Adam Horoszczak, Wrocław (PL); and Maciej Ostrowski, Kamieniec Wrocławski (PL)
Assigned to HAMILTON SUNDSTRAND CORPORATION, Charlotte, NC (US)
Filed by Hamilton Sundstrand Corporation, Charlotte, NC (US)
Filed on Dec. 6, 2022, as Appl. No. 18/062,354.
Claims priority of application No. 21461632 (EP), filed on Dec. 8, 2021.
Prior Publication US 2023/0175791 A1, Jun. 8, 2023
Int. Cl. F28F 3/00 (2006.01); F28F 3/08 (2006.01)
CPC F28F 3/08 (2013.01) 10 Claims
OG exemplary drawing
 
1. A heat exchanger comprising:
a plurality of cold layers through which a cold medium flows and a plurality of hot layers through which a hot medium flows, wherein the cold layers comprise:
a heat transfer layer comprising:
an inlet side, IN, where a medium enters the layer;
an outlet side, OUT, where the medium exits the layer; and
a plurality of fins defining a plurality of flow channels for the medium from the inlet side to the outlet side, each fin having a leading edge adjacent the inlet side and a trailing edge adjacent the outlet side, and wherein the leading edge of a subset of the fins is thicker than the rest of the fin, and wherein the leading edge of the fins intermediate the fins of the subset of fins is recessed with respect to the inlet side compared to the leading edge of the fins of the subset of fins;
wherein the plurality of cold layers are arranged relative to the plurality of hot layers such that the cold medium flows in a direction parallel to but opposite to the direction of flow of the hot medium.