Patent ID: 9109447
Filing Date: 2015-08-18
Classification: B22C,B22D,B23P,F01D,F05D,Y10T

Abstract:
1. A transition piece for a gas turbine, the transition piece comprising: a body defining a flowpath and enclosure, the body having a rounded inlet section for receiving combustion products from a combustor and an outlet end for flowing the combustor products into a first stage nozzle of the gas turbine; wherein the transition piece comprises a one-piece cast construction of the rounded inlet section, the body and the outlet end, the transition piece being formed from a nickel-based superalloy; wherein the transition piece has a thick-to-thin transition ratio of about 1.1 to about 2.5, the thick-to-thin transition ratio defined by a wall thickness of a thick wall section over a wall thickness of a thin wall section; and wherein the transition piece has a length-to-diameter ratio of about 0.1 to about 0.9, the length-to-diameter ratio defined by a length between the thick wall section and the thin wall section over a diameter of the rounded inlet section.