초록 ▼

A dual alloy turbine rotor is provided and includes an integrally formed blade ring and a disk. The blade ring is made of a first alloy and includes a ring portion and a plurality of airfoils extending therefrom, where the ring portion includes an inner surface, and each airfoil includes an internal

A dual alloy turbine rotor is provided and includes an integrally formed blade ring and a disk. The blade ring is made of a first alloy and includes a ring portion and a plurality of airfoils extending therefrom, where the ring portion includes an inner surface, and each airfoil includes an internal cavity formed therein. The disk is made of a second alloy and may have a beveled outer peripheral surface. The disk is disposed within the ring portion such that the disk outer peripheral surface contacts at least a portion of the ring portion inner surface. Methods of manufacturing the turbine rotor are also provided.

대표청구항 ▼

We claim: 1. A dual alloy turbine rotor comprising: an integrally formed blade ring comprising a first alloy and including a ring portion and a plurality of airfoils extending therefrom, the ring portion including an inner annular surface, and each airfoil including an internal cavity formed therei

We claim: 1. A dual alloy turbine rotor comprising: an integrally formed blade ring comprising a first alloy and including a ring portion and a plurality of airfoils extending therefrom, the ring portion including an inner annular surface, and each airfoil including an internal cavity formed therein; a disk comprising a second alloy disposed within the ring portion and having an outer peripheral surface substantially flush against at least a portion of the ring portion inner annular surface to form a bond line between the outer peripheral surface of the disk and the inner annular surface of the ring portion; and a plurality of passages extending from a side surface of the disk through the bond line to communicate with corresponding internal cavities of the plurality of airfoils. 2. The dual alloy turbine rotor of claim 1, wherein the side surface is a forward side surface and each passage of the plurality of passages has an inlet formed on the forward side surface. 3. The dual alloy turbine rotor of claim 1, wherein the side surface is an aft side surface and each passage of the plurality of passages has an inlet formed on the aft side surface.