Patent ID: 7674092
Filing Date: 2010-03-09
Classification: F01D,F05D

Abstract:
1. A blade or vane component with a basic airfoil shape for a rotary machine having a rotor mounted along a rotational axis of the machine, comprising: an inner space defined by a first wall radially extending perpendicular to the rotor axis, a second wall arranged opposite the first wall, an inlet area arranged at a radially inward end of the first and second walls, a top area arranged opposite the inlet area and at a radially outer end of the first and second walls, and an outlet area arranged toward a trailing edge of the component, wherein the inner space forms a passage for a cooling fluid that flows from the inlet area toward the outlet area; a plurality of first ribs projecting from the first wall, having a first rib extension extending substantially parallel to each other from a leading end of the first ribs to a trailing end of the first ribs, having a main thickness along a main portion of the first rib extension and a greater thickness at the trailing end of the first rib extension and forming a plurality of first channels in which the cooling fluid flows; and a plurality of second ribs projecting from the second wall, having a second rib extension extending from a leading end of the second ribs to a trailing end of the second ribs, having a main thickness along a main portion of the second rib extension and a greater thickness at the trailing end of the second rib extension and forming a plurality of second channels in which the cooling fluid flows,