Patent ID: 11859511
Assignee: ROLLS-ROYCE CORPORATION
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 13:
14. A method of cooling an airfoil, the method comprising:
supplying a cooling fluid to a first internal cavity of an airfoil spar and a second internal cavity of the airfoil spar;
directing the cooling fluid from the first internal cavity through a first inlet to a dual feed circuit, the first inlet adjacent to and downstream of a first dam of the dual feed circuit;
directing the cooling fluid from the second internal cavity though a second inlet to the dual feed circuit, the second inlet adjacent to and upstream of a second dam of the dual feed circuit;
directing the cooling fluid from the first inlet downstream through a plurality of diamond shaped pedestals and through a circuit outlet;
directing the cooling fluid from the second inlet upstream through the plurality of diamond shaped pedestals and through the circuit outlet; and
directing the cooling fluid from the circuit outlet along an outer surface of the airfoil downstream of the circuit outlet.