Patent ID: 9447691
Filing Date: 2016-09-20
CPC Classification: F01D,F05D

Claim Text:
1. A bucket assembly comprising: a platform, the platform defining a platform cooling circuit; an airfoil extending generally radially outward from the platform, the airfoil defining an airfoil cooling circuit; a lower body portion extending generally radially inward from the platform, the lower body portion defining a root and a cooling passage extending from the root, the cooling passage in fluid communication with the airfoil cooling circuit; and a transfer passage defined between and in fluid communication with the airfoil cooling circuit and the platform cooling circuit such that a cooling medium may flow from the airfoil cooling circuit through the transfer passage to the platform cooling circuit, wherein the airfoil cooling circuit terminates at the transfer passage such that cooling medium flowing from a terminal end of the airfoil cooling circuit flows only into the transfer passage, and wherein the transfer passage couples to the platform cooling circuit between an upstream end of the platform cooling circuit and a downstream end of the platform cooling circuit at a location spaced apart from the upstream end of the platform cooling circuit and the downstream end of the platform cooling circuit.