Patent ID: 9127551
Filing Date: 2015-09-08
Classification: F01D,F05B,F05D,F23R

Abstract:
1. A cooling apparatus that redirects a coolant fluid, comprising; a transition duct wall disposed in a coolant flow in a can-annular gas turbine engine; a plurality of scoops disposed over a respective plurality of coolant inlet holes formed in the transition duct wall at locations upstream of a region defining a minimum distance between the transition duct wall and an adjacent transition duct wall, each scoop comprising a leading edge with a central projection that overhangs the respective coolant inlet hole and an undercut on each side of the central projection between the central projection and a base of the scoop attached to the transition duct wall; and a plurality of partial scoops disposed over a respective plurality of coolant inlet holes formed in the transition duct wall at locations downstream of the region defining the minimum distance between the transition duct wall and the adjacent transition duct wall, each partial scoop comprising a generally planar leading edge lying in a plane leaning rearward from a leading end of the attachment base to form an acute angle with a plane of the transition duct wall proximate the respective coolant inlet hole.