US 11,988,461 B2
Additive airfoil heat exchanger
Malcolm MacDonald, Bloomfield, CT (US); Kathryn L. Kirsch, Manchester, CT (US); and Abbas A. Alahyari, Glastonbury, CT (US)
Assigned to Hamilton Sundstrand Corporation, Charlotte, NC (US)
Filed by Hamilton Sundstrand Corporation, Charlotte, NC (US)
Filed on Dec. 13, 2021, as Appl. No. 17/644,017.
Prior Publication US 2023/0184496 A1, Jun. 15, 2023
Int. Cl. F28F 1/02 (2006.01); F28D 1/053 (2006.01); F28F 1/08 (2006.01)
CPC F28F 1/022 (2013.01) [F28D 1/05383 (2013.01); F28F 1/08 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A heat exchanger comprising:
a heat exchanger core, wherein the heat exchanger core comprises:
a first fin;
a second fin spaced apart from the first fin;
a primary passage defined between the first fin and the second fin and extending through the heat exchanger core; and
a plurality of airfoils extending through the first fin, the primary passage, and the second fin, wherein at least one airfoil of the plurality of airfoils comprises:
a plurality of secondary passages, wherein the plurality of secondary passages extends through the heat exchanger core within the at least one airfoil transverse to the primary passage; and
a crossbar within at least one of the plurality of secondary passages.