초록 ▼

A transversely twisted hollow airfoil member is provided by diffusion bonding together airfoil components each having a skin or shell in the form of a partial airfoil twisted transversely along its length and one or more internal support ribs having bonding surfaces which are not twisted transversel

A transversely twisted hollow airfoil member is provided by diffusion bonding together airfoil components each having a skin or shell in the form of a partial airfoil twisted transversely along its length and one or more internal support ribs having bonding surfaces which are not twisted transversely along their length. Each support rib extends substantially normal to a bonding plane defined by bonding surfaces on the support ribs. As a result of the rib and bonding surface orientation, the airfoil components can be forged and the components bonded together at elevated temperature in short times between dies movable by high pressure toward one another normal to the bonding surfaces.

대표청구항 ▼

A blade or vane component for joining to another respective blade or vane component for use in a gas turbine engine, said blade or vane component having a partial root portion and partial tip portion and having a skin in the form of a partial airfoil twisted transversely along its longitudinal axis

A blade or vane component for joining to another respective blade or vane component for use in a gas turbine engine, said blade or vane component having a partial root portion and partial tip portion and having a skin in the form of a partial airfoil twisted transversely along its longitudinal axis between said partial root portion and tip portion and having at least one support rib integral with the skin, said support rib extending from the skin and terminating in a bonding surface that is not twisted transversely along the longitudinal axis such that axes normal to the bonding surface along its length between said partial root portion and tip portion are substantially parallel with one another when viewed along the longitudinal axis of the airfoil at the same given transverse position on the bonding surface.