HIGH LIFT TRANSONIC TURBINE BLADE
First Claim
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.
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Accused Products
Abstract
A turbine blade system including a blade airfoil having an airfoil shape with the blade airfoil having a nominal profile substantially in accordance with normalized Cartesian coordinate values Z set forth in a table 1 below and which values are dimensionless values that are convertible to corresponding absolute distance values that define nominal airfoil profile sections and which, when joined smoothly with adjacent ones thereof, form a complete nominal airfoil shape that is substantially matched by the airfoil shape of the blade airfoil. This blade airfoil can be supported on a ring platform having a support surface with a support surface shape in the vicinity of the location at which that blade airfoil is supported thereon formed in a similar manner.
117 Citations
11 Claims
- 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.
- 10. A ring platform for a turbine blade system on which a plurality of blade airfoils are supported positioned about the circumference of the ring platform, the ring platform having a support surface with a support surface shape in the vicinity of the location at which a blade airfoil is supported thereon with that support surface smoothly joining with the airfoil shape of that blade airfoil, the support surface having a nominal profile substantially in accordance with normalized Cartesian coordinate values of X, Y and Z set forth in Table 4 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 at various Z absolute distance values, when connected by smooth continuing arcs, form a nominal support surface shape substantially matched by the support surface shape of the support surface.
Specification