Patent ID: 11920495
Assignee: RTX CORPORATION
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 11:
12. A gas turbine engine comprising:
a compressor section;
a combustor in fluid communication with the compressor section; and
a turbine section in fluid communication with the combustor, the turbine section including a plurality of airfoils, each airfoil having
an airfoil wall circumscribing a cavity and defining a leading edge, a trailing edge, and pressure and suction sides that join the leading edge and the trailing edge, the airfoil wall including a wishbone-shaped fiber layer structure,
the wishbone-shaped fiber layup structure including first and second arms that merge into a single leg,
the first and second arms being comprised of a network of fiber tows,
the single leg including fiber tows from each of the first and second fiber sections that are interwoven, the single leg forming at least a portion of the trailing edge of the airfoil wall,
each of the first and second arms including a first section that is distal from the single leg and a second section that is proximal to the single leg,
the first section defining a first thickness and the second section defining a second thickness that is greater than the first thickness by a factor of 1.6-2.4, and
the single leg defining a third thickness that is greater than the second thickness.