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:
Apr. 19, 2011
Filed:
Aug. 01, 2008
Jack W Wilson, Jr., Palm Beach Gardens, FL (US);
Jack W Wilson, Jr., Palm Beach Gardens, FL (US);
Florida Turbine Technologies, Inc., Jupiter, FL (US);
Abstract
A small gas turbine engine that operates at high rotational speeds and includes a rotor shaft that is supported on both ends by ball bearings. The aft end ball bearings includes an outer race mounted to the support structure in such a way that axial displacement of the outer race is allowed to prevent axial loads from damaging the ball bearing. The outer race of each bearing is supported by an O-ring to provide damping to the bearings. The O-ring is centered on the outer race, and the outer race is formed thicker than the inner race to provide for a better hoop surface. The outer race in the aft end is preloaded with a coil spring to maintain a load on the bearing during all phases of operation of the engine. The bearings are coated with a dry lubricant to eliminate the need for a liquid lubricant and its supply system.