US 12,292,242 B2
Surface texture enhanced glass-ceramic matrix composite heat exchanger
John Joseph Gangloff, Middletown, CT (US); Paul Sheedy, Bolton, CT (US); Justin B. Alms, Coventry, CT (US); Kathryn L. Kirsch, Manchester, CT (US); Thomas M. Yun, Glastonbury, CT (US); Daniel A. Mosher, Glastonbury, CT (US); John E. Holowczak, South Windsor, CT (US); and Ram Ranjan, West Hartford, CT (US)
Assigned to Hamilton Sundstrand Corporation, Charlotte, NC (US)
Filed by Hamilton Sundstrand Corporation, Charlotte, NC (US)
Filed on May 26, 2022, as Appl. No. 17/825,690.
Prior Publication US 2023/0384044 A1, Nov. 30, 2023
Int. Cl. F28F 21/04 (2006.01); C03B 19/02 (2006.01); C03B 19/06 (2006.01); C03C 14/00 (2006.01)
CPC F28F 21/04 (2013.01) [C03B 19/025 (2013.01); C03B 19/063 (2013.01); C03C 14/002 (2013.01); C03C 2214/02 (2013.01); C03C 2214/20 (2013.01); C03C 2214/30 (2013.01); C03C 2214/34 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A heat exchanger comprising:
one or more tubular regions, wherein each tubular region of the one or more tubular regions comprises:
a passage defining a radially inner surface of the one or more tubular regions; and
a radially outer surface;
one or more reinforcing fibers between the radially inner surface and the radially outer surface of each tubular region;
a glass matrix material infiltrating the one or more reinforcing fibers;
one or more flat regions between each of the one or more tubular regions;
a first pattern formed into the radially inner surface of each tubular region; and
a second pattern formed into the radially outer surface of each tubular region.