Turbine nozzle with curved recesses in the outer platforms

Turbine nozzle with curved recesses in the outer platforms

A turbine nozzle includes: a hollow, airfoil-shaped turbine vane (14); and an arcuate first band (16, 18) disposed at a first end of the turbine vane (14), the first band (16, 18) having a tlowpath face adjacent the turbine vane (14), arid an opposed back face (56). The back face (56) includes at le...

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Hauptverfasser: PEARSON, SHAWN MICHAEL, IGLESIAS, DENNIS CENTENO, BRIGGS, ROBERT DAVID, SMITH, JACK WILLARD, JR
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BLASTING
ENGINE PLANTS IN GENERAL
HEATING
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES
STEAM ENGINES
WEAPONS
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creator PEARSON, SHAWN MICHAEL
IGLESIAS, DENNIS CENTENO
BRIGGS, ROBERT DAVID
SMITH, JACK WILLARD, JR
description A turbine nozzle includes: a hollow, airfoil-shaped turbine vane (14); and an arcuate first band (16, 18) disposed at a first end of the turbine vane (14), the first band (16, 18) having a tlowpath face adjacent the turbine vane (14), arid an opposed back face (56). The back face (56) includes at least one open pocket (58), the at least one pocket (58) defined in part by a bottom wall (66) recessed front the back face (56), opposed ends of the bottom wall (66) merging with the back face (56). The bottom wall (66)is substantially free of interior corners, in order to avoid recirculation and thermal stress due to the secondary air flow "X", coming in the presence of high velocity flow, which creates the streamline "S".
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subjects BLASTING
ENGINE PLANTS IN GENERAL
HEATING
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES
STEAM ENGINES
WEAPONS
title Turbine nozzle with curved recesses in the outer platforms
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