Patent · US Expired

Second-stage turbine bucket airfoil

US6558122B1 · kind B1 · utility

48Cited by
7References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 14, 2001
Grant dateMay 6, 2003
Priority date
Expiry dateNov 14, 2021

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S416/02
  • WIPO fieldEngines, pumps, turbines
  • WIPO sectorMechanical engineering

Abstract

The second-stage buckets have airfoil profiles substantially in accordance with Cartesian coordinate values of X, Y and Z set forth in inches in Table I wherein Z is a perpendicular distance from a plane normal to a radius of the turbine centerline and containing the X and Y values with the Z value commencing at zero in the X, Y plane at the radially innermost aerodynamic section of the airfoil and X and Y are coordinate values defining the airfoil profile at each distance Z. The X, Y and Z values may be scaled as a function of the same constant or number to provide a scaled-up or scaled-down airfoil section for the bucket.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.