COMBUSTION TRANSITION DUCT PROVIDING STAGE 1 TANGENTIAL TURNING FOR TURBINE ENGINES

摘要

A transition duct (122) for routing a gas flow from a combustor (124) to the first stage (126) of a turbine section in a combustion turbine engine has an internal passage from an inlet (140) to an outlet (142) that is offset from the inlet (140) in the longitudinal, radial and tangential directions. The offset outlet (142) and the curved internal passage discharge the gas flow toward the first stage blade array (126) at an angle (150) in the tangential direction (146) relative to the longitudinal direction (148). This angled discharge (150) can be presented directly to the blades (128), thus avoiding the need for first stage vanes and the associated costs and complexity. ® KIPO & WIPO 2008