Turbine shroud cooling system

摘要

The present application provides a turbine shroud cooling system for a gas turbine engine. The turbine shroud cooling system may include a number of variable area cooling shrouds with tuning pins and a number of fixed area cooling shrouds with anti-rotation pins. The variable area cooling shrouds may include modulated cooling shrouds. The fixed area shrouds may include non-modulated shrouds.

主权项

1. A turbine shroud cooling system for a gas turbine engine having a cooling fluid, comprising:
a plurality of variable area cooling shrouds, wherein a flow rate of the cooling fluid through the plurality of variable area cooling shrouds is variable; the plurality of variable area cooling shrouds comprising a tuning pin and a variable area cooling hole, wherein the tuning pin has a first length and comprises a pin shaft that intersects the variable area cooling hole, the tuning pin configured to regulate an amount of airflow through the variable area cooling hole; and a plurality of fixed area cooling shrouds having a fixed flow rate of the cooling fluid through the plurality of fixed area cooling shrouds; the plurality of fixed area cooling shrouds comprising an anti-rotation pin having a second length.