Abstract:
A gas turbine engine includes a core assembly with a core case having a containment section for containing liberated compressor and turbine blades and blade fragments. The containment section includes first and second containment layers and the containment section is configured to have a non- linear rate of energy dissipation across the first and second containment layers, thereby to improve containment of blades and blade fragments.
Abstract:
A combustor apparatus (10) defines a combustion zone (26) where air and fuel are burned to create high temperature combustion products. The combustor apparatus includes an outer wall (20), coupling structure (78) on the outer wall adjacent to a fuel inlet opening (64) thereof, a fuel injection system (40), a fuel feed assembly (60), and a fitting member (76). The fuel injection system provides fuel to be burned in the combustion zone. The fuel feed assembly includes a fuel feed pipe that extends through the fuel inlet opening in the outer wall and has an outlet portion formed from a first material and that is threadedly engaged with a fuel supply structure, and an inlet portion affixed to the outlet portion and formed from a second material. The fitting member secures the fuel feed assembly relative to the outer wall. The fuel supply structure includes a threaded inner surface formed from a first material.
Abstract:
A method of preventing transfer of metal of a gas turbine rotor blade having a metal tip to a blade outer air seal coating on a gas turbine case includes forming a coating on the metal tip. The coating comprises a bond coat layer on the metal tip and a ceramic filled metallic layer having a ceramic component in a matrix of a metal MCr, MCrAl, MCrAlY or a refractory modified MCrAlY where M is nickel, cobalt, iron or mixtures thereof.
Abstract:
A combustor apparatus defines a combustion zone where air and fuel are burned to create high temperature combustion products. The combustor apparatus includes an outer wall, coupling structure on the outer wall adjacent to a fuel inlet opening thereof, a fuel injection system, a fuel feed assembly, and a fitting member. The fuel injection system provides fuel to be burned in the combustion zone. The fuel supply structure includes a threaded inner surface formed from a first material. The fuel feed assembly includes a fuel feed pipe that extends through the fuel inlet opening in the outer wall and has an outlet portion formed from the first material and that is threadedly engaged with the fuel supply structure, and an inlet portion affixed to the outlet portion and formed from a second material. The fitting member secures the fuel feed assembly relative to the outer wall.
Abstract:
Die Erfindung betrifft eine Erosionsschutzbeschichtung (11), insbesondere für Gasturbinenbauteile, mit einem horizontal segmentierten bzw. mehrschichtigen Aufbau, nämlich mit mindestens einer relativ harten Schicht (12) und mit mindestens einer relativ weichen Schicht (13), wobei die oder jede relativ harte Schicht sowie die oder jede relativ weiche Schicht wechselweise derart übereinander angeordnet sind, dass eine außenliegende Schicht, die eine äußere Oberfläche der Erosionsschutzbeschichtung bildet, als relativ harte Schicht (12) ausgebildet ist. Erfindungsgemäß ist die oder jede relativ harte Schicht (12) sowie die oder jede relativ weiche Schicht (13) jeweils als keramische Schicht ausgebildet.
Abstract:
A seal comprises a housing. A coating has at least two layers with a bond layer to be positioned between a housing and a second hard layer. The second hard layer is formed to be harder than the bond layer. The bond layer has a bond strength greater than or equal to 200 psi and less than or equal to 2000 psi. A gas turbine engine, and a method of forming a coating layer are also disclosed.