Feeding film cooling holes from seal slots
AssigneeGeneral Electric Company
InventorJaime MALDONADO
Life of this patent
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Abstract
A cooling arrangement for a first stage nozzle of a turbine includes a slot formed in a forward face of the first stage nozzle, the slot opening in a direction facing a combustor transition piece and adapted to receive a flange portion of a seal extending between the first stage nozzle and the transition piece. The slot has a closed end formed with at least one cooling cavity provided with at least one cooling passageway extending between the cavity and an external surface of the first stage nozzle.
Claims20
A cooling arrangement for a turbine component having a seal slot along an edge thereof, the slot having a closed end formed with at least one cooling cavity, and at least one cooling passageway extending between the cavity and an external surface of said turbine component.
A cooling arrangement for a first component of a turbine having a seal slot formed in a forward face of the component, the seal slot extending about a generally rectangular opening in said forward face and opening in a direction toward a second turbine component and adapted to receive a flange portion of a seal extending between the first component and the second component;
- the slot having a closed aft end formed with at least one cooling cavity provided with at least one cooling passage extending between the cavity and an external surface of the first component, and wherein said at least one cooling passage extends at an acute angle relative to a rotor axis of the turbine.
A method of film cooling a turbine component formed with at least one seal slot adapted to receive a seal element, the method comprising:
- (a) forming one or more cavities at a closed end of the seal slot;
- (b) forming one or more cooling passages in each of said one or more cavities, said one or more cooling passages extending between said one or more cavities and a surface of said turbine component to be cooled.
Dependencies are inferred from the claim text.