Patent · US Active

Method of making a single-crystal turbine blade

US11220919B2 · kind B2 · utility

0Cited by

10References

18Claims

0Family size

Assignee

PRATT & WHITNEY CANADA CORP. · CA

Inventors

Chao Zhang · 安丰镇, CN
Robert Huszar · Saguenay, CA
Othmane Leghzaouni · Boucherville, CA

Key dates

Filing date	Jul 18, 2019
Grant date	Jan 11, 2022
Priority date	—
Expiry date	Dec 30, 2039

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF05D2300/607
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A single-crystal turbine blade and a method of making such single-crystal turbine blade are disclosed. During manufacturing, a secondary crystallographic orientation of the material of the single-crystal turbine blade is controlled based on a parameter of a root fillet between an airfoil of the single-crystal turbine blade and a platform of the single-crystal turbine blade. The parameter can be a location of peak stress in the root fillet expected during use of the turbine blade.

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