Patent · US Expired

Blade for rotors and method for producing rotors with such blades

US5876183A · kind A · utility

12Cited by

9References

9Claims

0Family size

Assignee

MTU Motoren-und Turbinen-Union MÃƒÂ¼nchen GmbH · DE

Inventors

Roberto Furlan · Piove di Sacco, IT
Ulrich Knott · Munich, DE
Horst Friedrich · Herschweiler-Pettersheim, DE

Key dates

Filing date	Mar 19, 1998
Grant date	Mar 2, 1999
Priority date	—
Expiry date	Mar 19, 2018

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49339
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A blade for a rotor, especially a turborotor, is made of two hollow blade foot sections having matching seam surfaces to form a hollow blade with a thickened foot that is butt-welded with its blade foot sole (7) to an integral welding stub of a rotor hub or disk. The two hollow blade foot sections are soldered to each other along a radially outer seam section (5) between the seam surfaces and welded to each other along a radially inner seam section (6) between the seam surface. The radially inner seam section extends from said blade foot sole. The welded seam normally ends in the thickened blade foot section (6) and is thus shorter than the soldered seam section (5).

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