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:
Aug. 05, 2014
Filed:
May. 05, 2010
Applicant:
Michael J. Rollins, Chula Vista, CA (US);
Inventor:
Michael J. Rollins, Chula Vista, CA (US);
Assignee:
Hamilton Sundstrand Corporation, Windsor Locks, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 57/04 (2010.01);
U.S. Cl.
CPC ...
Abstract
A gearbox for an auxiliary power unit (APU) includes features that prevent submersion of gears in lubricant in extreme attitude orientations. The gearbox includes a plurality of gears that drive various pumps, generators and/or other aircraft systems. A shield surrounds a portion of one of the plurality of gears to prevent lubricant from submerging the gear. The shield defines at least a portion of an open chamber that is at least partially surrounded by lubricant at extreme attitude orientations.