Forward flowing serpentine vane
AssigneesROLLS-ROYCE plc, Rolls-Royce North American Technologies Inc.
InventorsJohn Alan Weaver, Bradford John Riehle
Life of this patent
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Abstract
A vane adapted for use in a gas turbine engine includes a forward following serpentine cooling path having a plurality of divider walls to direct cooling airflow. The serpentine cooling path optionally includes one or more bifurcating walls in the cooling path to split the airflow. The serpentine cooling path is in communication with an aft inlet in the vane and air passing through the serpentine cooling path exits a forward outlet in the vane into a forward rotor/stator cavity.
Claims20
A vane adapted for use in a gas turbine engine, the vane comprising
- an outer platform,
- an inner platform, and
- an airfoil that extends from the outer platform to the inner platform in a radial direction, the airfoil having a leading edge and a trailing edge and being formed to include a serpentine cooling passage with an inlet arranged through the outer platform at the trailing edge of the airfoil and an outlet arranged through the inner platform adjacent to the leading edge of the airfoil so that cooling air supplied to the inlet moves toward the leading edge of the airfoil during use in the gas turbine engine.
A system for cooling stator cavities below a vane comprising
- the vane having an outer platform,
- an inner platform, and
- an airfoil that extends from the outer platform to the inner platform in a radial direction, the airfoil having a leading edge and a trailing edge and being formed to include a serpentine cooling passage with an aft inlet arranged through the outer platform at the trailing edge of the airfoil, a forward inlet arranged through the outer platform adjacent to the forward edge of the airfoil, and an outlet arranged through the inner platform adjacent to the leading edge of the airfoil so that cooling air supplied to each inlet moves toward the leading edge of the airfoil during use in a gas turbine engine.
Dependencies are inferred from the claim text.