TURBINE SLOTTED ARCUATE LEAF SEAL

摘要

A gas turbine engine arcuate leaf seal assembly includes arcuate leaf seal extending radially and circumferentially between adjacent first and second turbine components. Upper and lower leaf seal portions of leaf seal are in radially spaced apart arcuate upper and lower grooves in the first and second turbine components respectfully. The seal includes an arcuate body and a circumferential retention tab extending radially away from body and disposed in a notch in a wall of grooves. Seal may have a thickness between 3 mils and 35 mils and/or torsional stiffness between 0.015 and 0.15 lb/in. Turbine components may be radially adjacent turbine nozzle upper and lower components. The upper or lower component may be made of a ceramic matrix composite material. Annular cooling air plenum including flow cavities in inner support ring segments may be in lower component and in flow communication with hollow fairing airfoils.

主权项

1. A gas turbine engine arcuate leaf seal assembly comprising:
an arcuate leaf seal extending radially and circumferentially between adjacent first and second turbine components, the leaf seal operable for preventing or inhibiting leakage between first and second fluid volumes through a gap between the first and second turbine components, and upper and lower leaf seal portions of the arcuate leaf seal disposed in radially spaced apart arcuate leaf seal upper and lower grooves in the first and second turbine components respectfully.