Rolls-royce Corporation

Matthew D Tucker

Simon James Jones

An air cooled component for a gas turbine engine including a first wall and a second wall having opposing inner surfaces to define a gap therebetween, and a lattice of intersecting elongate ribs extending longitudinally along the first and second walls and transversely between the inner surfaces of the first and second walls to provide a plurality of cells. One or more portions of the ribs include an aperture to provide a flow path between adjacent cells so that the cells are in fluid communication.

Dual walled component for a gas turbine engine

A method for the manufacture of a component having an internal cavity is described. The method comprises; defining an external geometry of the component, defining a core geometry of the component; and using an additive layer manufacturing (ALM) method, building the component from a plurality of layers laid on a first plane. The core geometry is advantageously designed to suit manufacture of the component using an ALM method which involves local melting of powder in a powder bed to form the layers, permitting easy removal of excess powder from the internal cavity.

Manufacture of component with cavity

A method for the manufacture of a component having an internal cavity and an array of pedestals extending into the cavity includes; defining external and core geometries of the component; using a powder-bed additive layer manufacturing method, building the component from a plurality of layers laid on a first-plane; and removing excess powder from the core in a first powder extraction direction along the first-plane. The core geometry is adapted for improved powder removal; including a main core passage, an array of pedestals extending into the passage and passage wall extending from the first-plane, one or more pedestals coinciding with the passage wall, having a cross-section in a plane parallel to the first-plane which is altered with respect to the cross-section of non-coinciding pedestals to extend a face of the pedestal which faces away from the powder extraction direction to intersect the passage wall at an obtuse angle.

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Bristol, United Kingdom

Matthew D Tucker