US 11,946,391 B2
Turbine engine with composite airfoil having a non-metallic leading edge protective wrap
Anthony Michael Gunasekera, New Richmond, OH (US); Nicholas Joseph Kray, Mason, OH (US); Leslie Louis Langenbrunner, Cincinnati, OH (US); and Simeon Paul Copple, Wilmington, OH (US)
Assigned to General Electric Company, Schenectady, NY (US)
Filed by General Electric Company, Schenectady, NY (US)
Filed on Mar. 11, 2021, as Appl. No. 17/198,843.
Prior Publication US 2022/0290572 A1, Sep. 15, 2022
Int. Cl. F01D 9/04 (2006.01); B64C 11/26 (2006.01); F01D 5/28 (2006.01); F01D 25/00 (2006.01); F04D 29/38 (2006.01)
CPC F01D 9/041 (2013.01) [B64C 11/26 (2013.01); F01D 5/282 (2013.01); F01D 25/005 (2013.01); F04D 29/388 (2013.01); F05D 2220/323 (2013.01); F05D 2240/12 (2013.01); F05D 2240/30 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An airfoil for a turbine engine, the airfoil comprising:
a composite core having a pressure sidewall and a suction sidewall extending between a core leading edge and a core trailing edge, wherein the composite core comprises a ceramic matrix composite or a polymer matrix composite; and
a leading edge protective wrap, comprising:
a trailing wrap wrapped around the core leading edge and connected to the pressure sidewall and the suction sidewall of the composite core, the trailing wrap having a leading edge and having a pressure sidewall and a suction sidewall;
a leading wrap wrapped around the core leading edge and the leading edge of the trailing wrap and directly connected to the pressure sidewall and the suction sidewall of the trailing wrap, the leading wrap having a leading edge that is spaced from the leading edge of the trailing wrap, wherein the leading wrap terminates at one end at a first termination point directly connected to the pressure sidewall of the trailing wrap and at its other end at a second termination point directly connected to the suction sidewall of the trailing wrap, the trailing wrap and the leading wrap defining a cavity between the leading edge of the trailing wrap and the leading edge of the leading wrap; and
a filler inserted into the cavity.