DEVICE, SYSTEM AND METHOD FOR PREVENTING LEAKAGE IN A TURBINE

摘要

A turbine disk and blade assembly comprises a turbine disk including a plurality of disk posts extending radially therefrom and a plurality of disk slots between adjacent disk posts. The turbine disk is of a first material having a first coefficient of thermal expansion. The assembly further comprises a plurality of turbine blades. One of the turbine blades is received in each disk slot. The turbine blades are of a second material having a second coefficient of thermal expansion. The assembly further comprises a plurality of seal plates, wherein one of the seal plates is positioned in each disk slot radially inward of the turbine blade. The seal plates are of a material having a coefficient of thermal expansion substantially similar to that of either the disk posts or the turbine blade.

主权项

1. A turbine disk and blade assembly, comprising:
a turbine disk including a plurality of disk posts extending radially therefrom and a plurality of disk slots between adjacent disk posts, said turbine disk being of a first material having a first coefficient of thermal expansion; a plurality of turbine blades, one of said turbine blades being received in each said disk slot, said turbine blades being of a second material having a second coefficient of thermal expansion; and a plurality of seal plates, wherein one of said seal plates is positioned in each disk slot radially inward of the turbine blade, said seal plates being of a material having a coefficient of thermal expansion substantially similar to that of either said disk posts or said turbine blade such that said seal plates thermally expand or contract an amount similar to a thermal expansion or contraction of at least one of the plurality of disk posts or the plurality of turbine blades.