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. 09, 2015
Filed:
Jun. 22, 2011
Michael R. Blewett, Stillman Valley, IL (US);
Adrian L. Stoicescu, Rockford, IL (US);
Jeff A. Brown, Cherry Valley, IL (US);
Michael R. Blewett, Stillman Valley, IL (US);
Adrian L. Stoicescu, Rockford, IL (US);
Jeff A. Brown, Cherry Valley, IL (US);
Hamilton Sundstrand Corporation, Windsor Locks, CT (US);
Abstract
An engine bearing compartment is provided and includes an engine casing defining a discharge pathway for a fluid to drain from the engine bearing compartment, a shaft rotatably disposed within the engine casing to define an annulus, a housing disposed within the annulus below an elevation of the discharge pathway, an impeller rotatable with the shaft and including a centrifugal element, the impeller being disposed within the annulus at least partially below the discharge pathway elevation whereby, due to impeller rotation, the centrifugal element expels the fluid through the discharge pathway from the annulus above the discharge pathway elevation and a circuit by which fluid expelled through the discharge pathway is communicated to an interior of the housing.