The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 27, 2013
Filed:
May. 03, 2012
Ernst Pauli, Zürich, CH;
Thomas Kramer, Ennetbaden, CH;
Holger Kiewel, Brugg, CH;
Alstom Technology Ltd, Baden, CH;
Abstract
A rotor () of a gas turbine compressor comprises a multiplicity of welded-together rotor disks (), of which two or more rotor disks (), in a radially outer region (), are welded together, and, in a radially inner central region (), are abutment-joined together. Via the abutment-joining of two rotor disks (), a heat flow () radially outward from the center of the rotor () is achieved so that the material temperature of the rotor () can be kept below a predetermined level during operation. As a result, the service life of the rotor () can be increased. In one embodiment, one rotor disk (), on its surface, additionally has a recess () which can be cooled from outside. The rotor disks () according to the invention, which are welded and abutment-joined together, can especially be used at the last point in the flow direction of the compressor.