Patent · US Active

Manufacturing of turbine shroud segment with internal cooling passages

US9028744B2 · kind B2 · utility

11Cited by

31References

13Claims

0Family size

Assignee

PRATT & WHITNEY CANADA CORP. · CA

Inventors

Eric Durocher · Boucherville, CA
Guy Lefebvre · Buckingham, CA

Key dates

Filing date	Aug 31, 2011
Grant date	May 12, 2015
Priority date	—
Expiry date	Sep 17, 2032

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF05D2240/11
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A turbine shroud segment is metal injection molded (MIM) about a low melting point material insert. The low melting point material is dissolved using heat during the heat treatment cycle required for the MIM material, thereby leaving internal cooling passages in the MIM shroud segment without extra manufacturing operation.

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