Patent ID: 6382907
Filing Date: 2002-05-07
Classification: F01D,F05D

Abstract:
A component defining one of a blade and a vane for a rotary machine having a rotor (3) which is rotatable about an axis (x), said component (1) comprising an inner space (6), forming a passage for a cooling fluid and limited by first and second walls (7, 8) facing each other, and at least first ribs (13â€², 13â€³), projecting from said first wall (6) and extending essentially in parallel to each other to form first channels for said fluid from a leading inlet part (9) of the channels to a trailing outlet part (10) of the channels, characterized in that said first ribs (13â€²,13â€³) extend in a first direction forming a first angle (a) of inclination to said axis (x) in said leading part (9) and in a second direction forming a second angle (b) of inclination to said axis (x) in said trailing part (10), and that the first angle (a) is greater than the second angle (b).