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:
Jun. 30, 2009
Filed:
Nov. 29, 2005
Chris D. Eick, Phoenix, AZ (US);
Louie T. Gaines, Phoenix, AZ (US);
Mitchell J. Laidlaw, Tempe, AZ (US);
Dwayne M. Benson, Chandler, AZ (US);
Larry A. Portolese, Granger, IN (US);
Brian L. Flaherty, Granger, IN (US);
Wayne T. Pearson, Tucson, AZ (US);
Chris D. Eick, Phoenix, AZ (US);
Louie T. Gaines, Phoenix, AZ (US);
Mitchell J. Laidlaw, Tempe, AZ (US);
Dwayne M. Benson, Chandler, AZ (US);
Larry A. Portolese, Granger, IN (US);
Brian L. Flaherty, Granger, IN (US);
Wayne T. Pearson, Tucson, AZ (US);
Honeywell International Inc., Morristown, NJ (US);
Abstract
A turbofan gas turbine propulsion engine includes a system to transfer power from the low pressure turbine to the high pressure turbine and/or extract additional load from the low pressure turbine during certain turbofan engine operational conditions. The systems include a hydrostatic power transfer system that includes a hydraulic pump and a hydraulic motor coupled to the low pressure and high pressure turbine, respectively. The systems additionally include a mechanical and electrical load shifting/loading sharing systems that use clutches and gear assemblies to share and/or shift load between the turbines.