US 12,222,168 B2
Drawn polymer fibers for use in thermal applications
John G. Brisson, Rockport, MA (US); Kyle J. Thompson, Lynnfield, MA (US); John Cummings, Stoneham, MA (US); Jacob Lazer Adams, McLean, VA (US); and Lauren Cantley, Cambridge, MA (US)
Assigned to Massachusetts Institute of Technology, Cambridge, MA (US)
Filed by Massachusetts Institute of Technology, Cambridge, MA (US)
Filed on Jul. 14, 2021, as Appl. No. 17/375,182.
Prior Publication US 2023/0020829 A1, Jan. 19, 2023
Int. Cl. F28F 1/02 (2006.01); B29C 55/22 (2006.01); B29L 31/18 (2006.01); F28F 7/02 (2006.01); F28F 21/06 (2006.01); B29K 69/00 (2006.01); B29K 79/00 (2006.01)
CPC F28F 1/022 (2013.01) [B29C 55/22 (2013.01); F28F 7/02 (2013.01); F28F 21/06 (2013.01); B29K 2069/00 (2013.01); B29K 2079/085 (2013.01); B29L 2031/18 (2013.01); F28F 2255/06 (2013.01); F28F 2260/02 (2013.01)] 27 Claims
OG exemplary drawing
 
1. A heat exchanger comprising:
a polymer fiber having a first end and a second end, the polymer fiber comprising: one or more fluid delivery channels disposed along a length of the polymer fiber between the first and second ends, the one or more fluid delivery channels configured to carry a fluid having a first temperature from the first end to the second end, wherein the polymer fiber is a single, polymer fiber having an outer wall and having a uniform cross-section along the entire length of the single polymer fiber from the first end of the single, polymer fiber to the second end of the single polymer fiber; and
one or more fluid return channels disposed along the length of the polymer fiber with at least one or some of the fluid return channels extending between the first and second ends and configured to return a fluid from the second end of the polymer fiber, wherein the one or more fluid delivery channels have a first size and shape which define a first cross-sectional area and the one or more fluid return channels have a second size and shape which define a second cross-sectional area.