Patent · US Active

Rotor for an axial flow turbomachine

US8459951B2 · kind B2 · utility

3Cited by

6References

19Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Douglas J. Arrell · Oviedo, US
Harald Hoell · Wächtersbach, DE
David W. Hunt · Orlando, US
Karsten Kolk · Neheim, DE
Harald Nimptsch · Essen, DE

Key dates

Filing date	Aug 8, 2008
Grant date	Jun 11, 2013
Priority date	—
Expiry date	Dec 15, 2029

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF05D2300/502
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A rotor for an axial flow turbomachine is provided. The rotor includes a plurality of rotor discs that are arranged in stacks and clamped together with at least one tie rod. At least one of the rotor discs of the rotor comprises a smaller outer diameter than one of the neighboring rotor discs and that the difference in diameter is compensated by a drum surrounding the rotor disc with the smaller outer diameter as a ring. The drum may be made of a heat resistant material. The rotor discs surrounded by the drum may be made of a less expensive material. Furthermore, the drum may include at least one more blade ring than the rotor discs that are surrounded by the drum.

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