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US 5,100,291 AGranted
Impingement manifold
AssigneeGeneral Electric Company
InventorJeffrey Glover
Life of this patent
Estimating the term…
Abstract
Clearance control is provided by circumferentially segmented cooling manifolds having spray bars located radially outside selected components of the stator casing. Cooling air is directed onto stator components and returns immediately through circuitous paths to improve uniformity of cooling. The spray bars extend through limited circumferential angles to limit distortion due to uneven heating.
Claims13
An impingement manifold, comprising:
- a plurality of generally arcuate manifold segments having cooling passages through an inner wall thereof for flowing cooling air therefrom in a generally radially inward direction to impinge on a generally circular surface to be cooled;
- a plurality of feed pipes for supplying cooling airflow into a center portion of each respective one of said arcuate manifold segments;
- and
- mounting means disposed at the ends of said segments for flexibly securing said plurality of segments into a generally circular cooling manifold.
1 more element
A cooling system for supplying cooling air to the exterior surface of casing components of a gas turbine engine, comprising:
- a plurality of generally arcuate tubular segments disposed in end-to-end relationship to each other to form a segmented cooling ring surrounding a selected portion of a turbine stator casing;
- a plurality of generally axially extending feed pipes each connected near a center portion of a respective one of said segments;
- a plurality of cooling passages penetrating a radially inner surface of each respective one of said arcuate segments for providing a cooling airflow to said selected portion of said casing;
- and
- a cooling air supply means for supplying a flow of cooling air to each of said feed pipes, said cooling air supply means comprising a generally circumferential supply pipe for providing a supply of cooling air to each respective one of said axially extending feed pipes.
2 more elements
Dependencies are inferred from the claim text.