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:
Dec. 18, 2012
Filed:
Aug. 21, 2009
Thomas Mokulys, Wuerenlingen, CH;
Vishal Borikar, Nussbaumen, CH;
Giorgio Zanazzi, Baden, CH;
Pierre-alain Masserey, Wuerenlos, CH;
Michael Sell, Zurich, CH;
Thomas Mokulys, Wuerenlingen, CH;
Vishal Borikar, Nussbaumen, CH;
Giorgio Zanazzi, Baden, CH;
Pierre-Alain Masserey, Wuerenlos, CH;
Michael Sell, Zurich, CH;
Alstom Technology Ltd., Baden, CH;
Abstract
An exemplary control stage of a steam turbine is disclosed, which includes plural staging valves circumferentially distributed around the turbine for regulating steam admission flow so as to control the loading of the turbine. Nozzle chambers are connected to a downstream end of each staging valve. An arc of admission forms the downstream portion of each nozzle chamber, and control stage nozzles in the arcs of admission define the downstream end of the nozzle chamber. Each nozzle chamber has at least two arcs of admission, each with a different circumferential dimension.