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. 03, 2006
Filed:
Nov. 20, 2003
Erich Alois Krammer, West Chester, OH (US);
Richard Clay Haubert, Hamilton, OH (US);
Ching-pang Lee, Cincinnati, OH (US);
Harvey Michael Maclin, Cincinnati, OH (US);
Erich Alois Krammer, West Chester, OH (US);
Richard Clay Haubert, Hamilton, OH (US);
Ching-Pang Lee, Cincinnati, OH (US);
Harvey Michael Maclin, Cincinnati, OH (US);
General Electric Company, Schenectady, NY (US);
Abstract
A turbofan engine includes in serial flow communication a first fan, second fan, multistage compressor, combustor, first turbine, second turbine, and third turbine. The first turbine is joined to the compressor by a first shaft. The second turbine is joined to the second fan by a second shaft. And, the third turbine is joined to the first fan by a third shaft. First, second, and third cooling circuits are joined to different stages of the compressor for cooling the forward and aft sides and center bore of the first turbine with different pressure air.