18480692. CMC AIRFOIL WITH CIRCUMVENTING COOLING PASSAGE (RTX Corporation)
CMC AIRFOIL WITH CIRCUMVENTING COOLING PASSAGE
Organization Name
Inventor(s)
Jonas Banhos of West Hartford CT US
James T. Roach of Vernon CT US
Raymond Surace of Newington CT US
CMC AIRFOIL WITH CIRCUMVENTING COOLING PASSAGE
This abstract first appeared for US patent application 18480692 titled 'CMC AIRFOIL WITH CIRCUMVENTING COOLING PASSAGE
Original Abstract Submitted
An airfoil includes an airfoil section that defines a trailing edge region that includes a trailing edge. The airfoil section is formed of a ceramic matrix composite that includes core fiber plies and skin fiber plies. The core fiber plies define a radial tube that has a radiused end in the trailing edge region. The skin fiber plies wrap around the core fiber plies and a filler element in the trailing edge region is aft of the internal cavity and is sandwiched between the skin fiber plies on the pressure side and the skin fiber plies on the suction side. There is at least one cooling passage that includes a first, inlet orifice section that opens to the internal cavity at a location forward of the radiused end and that extends through the core fiber plies, and a second, outlet orifice section that extends through the trailing edge.