Patent · US Active

Welded multipartite rotor for a generator

US8513841B2 · kind B2 · utility

6Cited by

13References

27Claims

0Family size

Assignee

ALSTOM Technology Ltd · CH

Inventors

Ralf Rotzinger · Gernsbach, DE
Markus Vogt · Frankfurt am Main, DE
Reinhard Joho · Rombach, CH

Key dates

Filing date	Feb 27, 2008
Grant date	Aug 20, 2013
Priority date	—
Expiry date	Aug 25, 2028

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49012
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A rotor (10) for a generator, especially for a turbogenerator, is assembled from a plurality of separate rotor elements (11, 12) which are arranged one behind the other in the rotor axis (18), wherein the rotor elements (11, 12) abut on connecting faces and are welded to one another, forming circular weld seams (17) which concentrically encompass in each case an annular central gap (37) with a predetermined gap width. In order to achieve a maximum magnetically active volume with mechanical stresses which are as low as possible, on the outer circumference of the gap (37) the gap merges into a widening cavity (38) which is adjacent to the weld seam (17).

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