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. 27, 2009
Filed:
Dec. 30, 2005
Louie T. Gaines, Phoenix, AZ (US);
Peter J. Auer, Chandler, AZ (US);
Glenn H. Lane, Chandler, AZ (US);
James A. Wissinger, Carefree, AZ (US);
Louie T. Gaines, Phoenix, AZ (US);
Peter J. Auer, Chandler, AZ (US);
Glenn H. Lane, Chandler, AZ (US);
James A. Wissinger, Carefree, AZ (US);
Honeywell International Inc., Morristown, NJ (US);
Abstract
A turbofan gas turbine propulsion engine includes a multi-speed transmission between the high pressure and low pressure turbines and associated high pressure and low pressure starter-generators. The multi-speed transmission reduces the operating speed range from the low pressure turbine to its associated starter-generator, and is configurable to allow the starter-generator associated with the low pressure turbine to supply starting torque to the engine.