US 12,356,510 B2
Metallized carbon nanotube elements for electrothermal ice protection
Jin Hu, Hudson, OH (US); Casey Slane, Tallmadge, OH (US); Daniel Waina, Uniontown, OH (US); Nathaniel Ching, Hartville, OH (US); and Brandon Hein, Stow, OH (US)
Assigned to GOODRICH CORPORATION, Charlotte, NC (US)
Filed by GOODRICH CORPORATION, Charlotte, NC (US)
Filed on Jul. 20, 2020, as Appl. No. 16/933,833.
Prior Publication US 2022/0022286 A1, Jan. 20, 2022
Int. Cl. H05B 3/34 (2006.01); B64C 27/46 (2006.01); B64D 15/12 (2006.01); H05B 3/14 (2006.01)
CPC H05B 3/145 (2013.01) [B64C 27/46 (2013.01); B64D 15/12 (2013.01); H05B 3/347 (2013.01); H05B 2214/02 (2013.01); H05B 2214/04 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An ice protection system, comprising:
a blade comprising an airfoil that includes a leading edge, a trailing edge, a pressure side, and a suction side, the pressure side extending from the leading edge to the trailing edge, the suction side extending from the leading edge to the trailing edge, the blade having a first laminate layer, a second laminate layer, and a third laminate layer;
an electrothermal heater disposed on at least one of the leading edge, the pressure side, and the suction side, and disposed between the first laminate layer and the second laminate layer, the electrothermal heater configured to receive a current from a power source, the electrothermal heater comprising a first plurality of metallized carbon nanotube (CNT) elements disposed in a first direction and a second plurality of metallized carbon nanotube (CNT) elements in a second direction, wherein:
the first plurality of metallized CNT elements and the second plurality of metallized CNT elements comprise a plurality of metallized CNT yarn,
each of the plurality of metallized CNT yarn comprises a CNT yarn and a metal coating disposed around an outer surface of the CNT yarn, and
the plurality of metallized CNT yarn form a woven pattern;
a heater feed conductive element disposed between the second laminate layer and the third laminate layer; and
a heater return conductive element disposed between the second laminate layer and the third laminate layer.