US 11,754,341 B2
Heat exchanger
Adam Horoszczak, Wroclaw (PL); and Rafal Lewandowski, Zarow (PL)
Assigned to HAMILTON SUNDSTRAND CORPORATION, Charlotte, NC (US)
Filed by Hamilton Sundstrand Corporation, Charlotte, NC (US)
Filed on Dec. 18, 2019, as Appl. No. 16/719,582.
Claims priority of application No. 19461554 (EP), filed on Jul. 5, 2019.
Prior Publication US 2021/0003349 A1, Jan. 7, 2021
Int. Cl. F28D 1/053 (2006.01); F28F 1/04 (2006.01); B33Y 10/00 (2015.01); B33Y 80/00 (2015.01); F28F 9/02 (2006.01)
CPC F28D 1/05383 (2013.01) [F28F 1/04 (2013.01); B33Y 10/00 (2014.12); B33Y 80/00 (2014.12); F28F 2009/029 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A heat exchanger for exchanging heat between first and second fluids, comprising:
first fluid channels extending in a longitudinal direction for carrying a first fluid; and
second fluid channels extending in the longitudinal direction for carrying a second fluid;
wherein the first and second fluid channels are arranged in an alternating pattern such that each of a plurality of the first fluid channels is located laterally between some of the second fluid channels and each of a plurality of the second fluid channels is located laterally between some of the first fluid channels;
wherein walls of the plurality of the first fluid channels also form walls of the plurality of the second fluid channels, and the walls of the plurality of the second fluid channels also form the walls of the plurality of the first fluid channels, except for the first and second fluid channels located at the radial edges of the heat exchanger; and
wherein the second fluid channels extend longitudinally beyond ends of the first fluid channels, and have end portions that decrease in cross sectional area such that the first fluid is able to pass around and between the ends portions of the second fluid channels;
the heat exchanger further comprising an upstream parting wall contacting upstream ends of the second fluid channels, wherein a first inlet chamber is defined between the upstream parting wall, an outer housing of the heat exchanger and upstream ends of the first fluid channels, and wherein the outer housing comprises a first inlet into the first inlet chamber for supplying the first fluid.