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:
Nov. 08, 2005
Filed:
Dec. 04, 2003
Swami Ganesh, Clifton Park, NY (US);
Robin Carl Schwant, Pattersonville, NY (US);
Peter William Schilke, Brewster, MA (US);
Ling Yang, Niskayuna, NY (US);
John Zhiqiang Wang, Greenville, SC (US);
Robert B. Falsetti, Schenectady, NY (US);
Francis Alexander Reed, Princetown, NY (US);
Swami Ganesh, Clifton Park, NY (US);
Robin Carl Schwant, Pattersonville, NY (US);
Peter William Schilke, Brewster, MA (US);
Ling Yang, Niskayuna, NY (US);
John Zhiqiang Wang, Greenville, SC (US);
Robert B. Falsetti, Schenectady, NY (US);
Francis Alexander Reed, Princetown, NY (US);
General Electric Company, Schenectady, NY (US);
Abstract
A monolithic rotor comprising first and second rotor regions axially aligned within the monolithic rotor and a transition zone therebetween. The first and second rotor regions are formed of different alloys and the transition zone having a composition that differs from and varies between the first and second rotor regions. The first rotor region is located within a high pressure region of the monolithic rotor and is formed from an alloy chosen from the group consisting of CrMoV low alloy steels, martensitic stainless steels containing about 11 to about 14 weight percent chromium, Fe—Ni alloys, and nickel-base alloys. The second rotor region is located within a low pressure region of the monolithic rotor and is formed from an alloy chosen from the group consisting of NiCrMoV low alloy steels and martensitic stainless steels containing about 11 to about 14 weight percent chromium.