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US 10,240,470 B2Granted
Baffle for gas turbine engine vane
AssigneeUnited Technologies Corporation
InventorsBenjamin F. Hagan, Ryan A. Waite, Brandon W. Spangler, Steven B. Gautschi
Life of this patent
Estimating the term…
Abstract
A vane structure includes an airfoil section with a first inner airfoil wall surface and a second inner airfoil wall surface. A baffle is mounted within the airfoil section between the first inner airfoil wall surface and the second inner airfoil wall surface.
Claims14
A vane structure for a gas turbine engine, comprising:
- an airfoil section with a first inner airfoil wall surface and a second inner airfoil wall surface each having a plurality of ribs;
- and
- a baffle mounted within said airfoil section between said first inner airfoil wall surface and said second inner airfoil wall surface to define a pass-through passage and a cooling circuit at least partially around said pass-through passage, where the baffle is relatively loosely fit within a cavity of said airfoil section adjacent to a plurality of ribs and during operation of the gas turbine engine said baffle expands due to an increase in temperature and due to high pressure pass-through airflow in the pass-through passage within the baffle in comparison to lower pressure airflow in the cavity but outside the pass-through passage to seal between said baffle and said plurality of ribs.
A vane structure for a gas turbine engine, comprising:
- an airfoil section which defines an inner airfoil wall surface having a plurality of ribs;
- and
- a baffle mounted within said airfoil section to define a cooling circuit between said inner airfoil wall surface and said baffle, said cooling circuit defines a serpentine circuit where the baffle is relatively loosely fit within a cavity of said airfoil section adjacent to said plurality of ribs and during operation of the gas turbine engine said baffle expands due to an increase in temperature and due to high pressure-pass through airflow in the pass-through passage within the baffle in comparison to lower pressure airflow in the cavity but outside the pass-through passage to seal between said baffle and said plurality of ribs.
Dependencies are inferred from the claim text.