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. 13, 2009
Filed:
Aug. 03, 2005
Eric Alexander, San Diego, CA (US);
Gordon Jewess, San Diego, CA (US);
Patrick Lydon, San Marcos, CA (US);
Tammy Lane, San Diego, CA (US);
Eric Alexander, San Diego, CA (US);
Gordon Jewess, San Diego, CA (US);
Patrick Lydon, San Marcos, CA (US);
Tammy Lane, San Diego, CA (US);
Hamilton Sundstrand Corporation, Rockford, IL (US);
Abstract
A thermal management system for a gas turbine engine includes a cooling airflow which enters through an air filter portion of a forward cover for filtration of particulate which may result in FOD to a rotational system of the engine. Filtered cooling airflow flows along a rotor shaft over and through a forward bearing, over and through a permanent magnet generator, then over and through an aft bearing to provide thermal management. Commensurate therewith, the cooling airflow atomizes and communicates a lubricant to the bearings. From the aft bearing, the cooling airflow merges with a primary airflow path from an intake which generally surrounds the forward cover.