Abstract: A turbine blade having a dovetail and an airfoil extending therefrom and having a tip with a squealer cavity formed therein, a leading edge and a trailing edge which are located opposite to each other, and a pressure side and a suction side which are opposite to each other and extend between the leading edge and the trailing edge; wherein the turbine blade comprises an internal cooling system arranged in an internal space defined between the pressure side the suction side, the trailing edge and the leading edge; the internal cooling system comprising a serpentine second cooling passage extending through the dovetail and the airfoil and having a second inlet disposed in the dovetail, longitudinal first, second and third subpassages extending preferably through the entire extension of the airfoil and successively connected with each other by turns being arched parts of the second cooling passage and at least one second tip cooling hole exiting in the squealer cavity of the tip and connected to an end of one

Abstract: A turbine engine that includes an engine casing including a fluid supply plenum, a mating surface, and a nozzle supply passage and a cavity flow passage that both extend between the fluid supply plenum and the mating surface. The turbine engine further includes a turbine nozzle assembly including a mating band. The mating band includes an inlet scoop in flow communication with the nozzle supply passage. An interface is defined between the mating band and a first portion of the mating surface, and a band cavity is defined between the mating band and a second portion of the mating surface. The cavity flow passage couples the fluid supply plenum in flow communication with the band cavity.

Abstract: A turbine engine that includes an engine casing including a fluid supply plenum, a mating surface, and a nozzle supply passage and a cavity flow passage that both extend between the fluid supply plenum and the mating surface. The turbine engine further includes a turbine nozzle assembly including a mating band. The mating band includes an inlet scoop in flow communication with the nozzle supply passage. An interface is defined between the mating band and a first portion of the mating surface, and a band cavity is defined between the mating band and a second portion of the mating surface. The cavity flow passage couples the fluid supply plenum in flow communication with the band cavity.