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:
Jan. 13, 2015
Filed:
Nov. 29, 2011
Alexander Anatolievich Khanin, Moscow, RU;
Valery Kostege, Moscow, RU;
Anton Sumin, Moscow, RU;
Alstom Technology Ltd., Baden, CH;
Abstract
An axial flow gas turbine () includes a rotor () and a stator, and a hot gas path through which hot gas passes. The rotor () includes a rotor shaft () with axial slots for receiving a plurality of blades (B-B) arranged in a series of blade rows, with rotor heat shields (R, R) interposed between adjacent blade rows. The rotor shaft () is configured to axially conduct a main flow of cooling air along the rotor heat shields (R, R) and the lower parts of the blades (B-B), and the rotor shaft () supplies the interior of the blades (B-B) with cooling air (). Stable and predictable cooling air parameters at any blade row inlet are secured by providing air-tight cooling channels (), which extend axially through the rotor shaft () separate from the main flow of cooling air (), and supply the blades (B-B) with cooling air ().