Back to results
US 9,039,375 B2Granted
Non-axisymmetric airfoil platform shaping
AssigneeGeneral Electric Company
InventorsAndrew Ray Kneeland, Andres Jose Garcia-Crespo, Bradley T. Boyer, Thomas William Vandeputte, Sylvain Pierre
Life of this patent
Estimating the term…
Abstract
Turbine blade assemblies of a turbine include airfoils that are mounted on bases. The leading and/or trailing edges of the bases are provided with curved portions. Likewise, curved portions may be provided on leading and/or trailing edges of the angle wings of a turbine blade assembly. Also, curved portions may be provided on the leading and/or trailing edges of nozzle assemblies of a turbine.
Claims15
A blade assembly for a turbine, comprising:
- a mounting portion that is configured to be coupled to a rotating shaft of a turbine;
- a base that is formed on a top of the mounting portion, wherein a leading edge of the base includes at least one curved portion that extends forward from the leading edge of the base, the at least one curved portion extending along only a portion of the leading edge of the base, the base including:
- a leading angel wing formed on the leading side of the base, wherein at least one curved portion extends forward from a leading edge of the leading angel wing, the at least one curved portion extending along only a portion of the leading edge of the angel wing, wherein the at least one curved portions on the leading edge of the base and the leading edge of the leading angel wing have corresponding shapes, and wherein a location of the at least one curved portion on the leading edge of the leading angel wing is offset with respect to a location of the at least one curved portion on the leading edge of the base, and
- a trailing angel wing formed on the trailing side of the base;
- and
- a blade that extends upward from the top of the base.
3 more elements
A stationary nozzle assembly for a turbine, comprising:
- a first mounting portion that is configured to be attached to an interior of a turbine casing;
- a nozzle blade having a first end attached to the first mounting portion;
- and
- a second mounting portion attached to a second end of the nozzle blade, wherein the second mounting portion comprises:
- a nozzle base having leading and trailing edges, wherein the leading edge of the nozzle base includes at least one curved portion that extends forward from the leading edge of the nozzle base, the at least one curved portion extending along only a portion of the leading edge of the nozzle base, and
- a leading angel wing, wherein at least one curved portion that extends forward is formed on a leading edge of the leading angel wing, the at least one curved portion extending along only a portion of the leading edge of the leading angel wing, wherein a shape of the at least one curved portion on the leading edge of the leading angel wing corresponds to a shape of the at least one curved portion on the leading edge of the nozzle base, and wherein a location of the at least one curved portion on the leading edge of the leading angel wing is offset with respect to a location of the at least one curved portion on the leading edge of the nozzle base.
3 more elements
Dependencies are inferred from the claim text.