Patent ID: 9732617
Date: 2017-08-15
CPC Classifications: F01D,F05D,Y02T

Claim:
1. An airfoil comprising: a leading edge; a trailing edge; a suction side and a pressure side, wherein a downstream edge of the pressure side lies upstream of a downstream edge of the suction side; at least one internal cooling channel defined between the suction side and the pressure side and configured to convey a cooling fluid; a plurality of land extensions extending only from the downstream edge of the pressure side to the downstream edge of the suction side; a plurality of trailing edge bleed slots defined therebetween the plurality of land extensions and in fluid communication with the at least one internal cooling channel, wherein the plurality of trailing edge bleed slots are exposed proximate to the trailing edge of the airfoil, the at least one cooling channel configured to supply the cooling fluid towards the plurality of trailing edge bleed slots; and one or more obstruction features disposed within the at least one internal cooling channel, wherein a furthest downstream edge of the one or more obstruction features is in a same plane as a most upstream edge of the plurality of land extensions, and the plane also coincides with the downstream edge of the pressure sidewall, the one or more obstruction features configured so that a flow of the cooling fluid impinges on an upstream portion of the one or more obstruction features to distribute the flow of the cooling fluid toward radially outer portions of each of the plurality of trailing edge bleed slots and provide distributed cooling to the plurality of trailing edge bleed slots.