US 12,404,804 B1
Heat exchangers for gas turbine engines
Eyitayo James Owoeye, Houston, TX (US); William D. Gerstler, Niskayuna, NY (US); Daniel J. Erno, Clifton Park, NY (US); and Lana Maria Osusky, Rexford, NY (US)
Assigned to General Electric Company, Evendale, OH (US)
Filed by General Electric Company, Schenectady, NY (US)
Filed on Feb. 26, 2024, as Appl. No. 18/586,886.
Int. Cl. F02C 7/14 (2006.01); F02C 6/08 (2006.01)
CPC F02C 6/08 (2013.01) [F02C 7/14 (2013.01); F05D 2250/18 (2013.01); F05D 2260/213 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A heat exchanger for a gas turbine engine, comprising:
an outer shell extending between a first end and a second end opposite the first end, the outer shell defining a first fluid chamber, a first fluid inlet adjacent the first end, and a first fluid outlet adjacent the second end, the outer shell further defining a first plurality of second fluid inlet openings located between the first end and the second end, and a second fluid outlet adjacent the second end;
a manifold disposed within the outer shell, the manifold defining a second fluid chamber, and a second plurality of second fluid inlet openings;
a plurality of tubes fluidly coupling the first plurality of second fluid inlet openings and the second plurality of second fluid inlet openings; and
a plurality of baffles, each baffle of the plurality of baffles coupled between adjacent ones of the plurality of tubes;
wherein the heat exchanger defines a first fluid pathway extending from the first fluid inlet, through the first fluid chamber, and to the first fluid outlet; and
wherein the heat exchanger further defines a second fluid pathway extending from the first plurality of second fluid inlet openings, through the second plurality of second fluid inlet openings, through the second fluid chamber, and to the second fluid outlet; and
wherein the plurality of tubes and the plurality of baffles define a helical surface defining the first fluid pathway about the manifold.