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:
Apr. 09, 2013
Filed:
Jan. 04, 2010
Flor Del Carmen Rivas, Clifton Park, NY (US);
Howard Brilliant, Niskayuna, NY (US);
Kenneth Michael Koza, Ballston Lake, NY (US);
Vishwas Kumar Pandey, Karnataka, IN;
Flor Del Carmen Rivas, Clifton Park, NY (US);
Howard Brilliant, Niskayuna, NY (US);
Kenneth Michael Koza, Ballston Lake, NY (US);
Vishwas Kumar Pandey, Karnataka, IN;
General Electric Company, Schenectady, NY (US);
Abstract
A cooling path is defined through a double-flow steam turbine. The steam turbine includes a generator end and a turbine end and a double-flow tub diaphragm disposed axially between the generator end and the turbine end. A first stage of the steam turbine includes a plurality of first stage nozzles and a plurality of first stage buckets, and a steam path is defined from an inlet region, through the turbine end, to a steam outlet. The cooling path includes cooling holes in the tub diaphragm and root radial seals permitting steam flow beneath the tub diaphragm and around the first stage nozzles and back into the steam path before the first stage buckets.