Patent ID: 7581930
Filing Date: 2009-09-01
Classification: F01D,F05D

Abstract:
1. A turbine blade system including a blade airfoil having an airfoil shape, the blade airfoil having a nominal profile substantially in accordance with normalized Cartesian coordinate values of X, Y and Z set forth in Table 1 herein and which values are dimensionless values that are convertible to corresponding absolute distance values through manipulating them in accord with corresponding normalization equations, and wherein X and Y absolute distance values, when connected by smooth continuing arcs, define nominal airfoil profile sections at each Z absolute distance value, and the nominal airfoil profile sections, when joined smoothly with adjacent ones thereof in accord with Tables 2 and 3 herein, form a complete nominal airfoil shape that is substantially matched by the airfoil shape of the blade airfoil.