Patent · US Expired

Turbomachine with cooled rotor shaft

US6224328A · kind A · utility

12Cited by

4References

13Claims

0Family size

Assignee

Asea Brown Boveri, S.A. · CH

Inventors

Bernhard Weigand · Lauchringen, DE
Conor Fitzsimons · Baden-Baden, DE
Wolfgang Kappis · Fislisbach, CH
Hans Wettstein · Fislisbach, CH

Key dates

Filing date	Aug 11, 1999
Grant date	May 1, 2001
Priority date	—
Expiry date	Aug 11, 2019

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF05D2260/201
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

Turbomachine, in particular a compressor of a gas turbine, having rotor blades (11) and guide vanes (12), in which individual or all guide vanes (12) are configured as cooled vanes. The cooled vanes (12) have air guidance ducts (13) which emerge into outlet openings (14) in the region of the vane tips (15). Cooling air (K) is ejected through the outlet openings (14) and impinges at high velocity onto a rotor shaft (18). The cooling effect which can be achieved by this means is optimal and, in addition, leads to a raising of the compressor efficiency and the surge line.

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