SEAL BETWEEN BLADE AND VANE

摘要

A seal in a turbine of a combustion turbine engine (100) is described. The seal is formed within a trench cavity (150) defined between a rotor blade (126) and a stator blade (128). The stator blade includes a sidewall projection (154) and the rotor blade includes an angel wing projection (152) extending toward the stator blade. The sidewall projection (154) overhangs the angel wing projection (152). The seal includes: a port (166) disposed on an inboard surface (158) of the stator sidewall projection (154); and deflecting structure (168) disposed on the angel wing projection (152). The deflecting structure is configured to receive the fluid expelled from the port and deflect the fluid toward an inlet of the trench cavity.