Patent ID: 7189060
Filing Date: 2007-03-13
Classification: F01D,F05D

Abstract:
1. A turbine blade, comprising: a generally elongated blade having a leading edge, a trailing edge, a tip at a first end, a root coupled to the blade at an end generally opposite the first end for supporting the blade and for coupling the blade to a disc, and at least one cooling channel forming a cooling system in the blade; at least one first rib in the at least one channel generally aligned with a longitudinal axis of the at least one cooling channel and extending from a first sidewall to a second sidewall generally opposite to the first sidewall forming a first passageway having at least two mini channels in the first passageway of the at least one cooling channel; at least one second rib in the least one channel downstream from the first passageway, aligned with the longitudinal axis of the at least one cooling channel, and extending from the first sidewall to the second sidewall generally opposite to the first sidewall forming a second passageway having at least two mini channels in the second passageway; and at least one first protrusion protruding from a surface generally orthogonal to the at least one first rib and forming the at least one cooling channel.