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:
Feb. 01, 2011
Filed:
Nov. 13, 2007
Applicant:
John Munson, Indianapolis, IN (US);
Inventor:
John Munson, Indianapolis, IN (US);
Assignee:
Rolls-Royce Corporation, Indianapolis, IN (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 25/18 (2006.01); F01M 1/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method and apparatus for scavenging lubricant is disclosed herein. In the invention, a rotating structure is encircled within a sump housing and subjected to lubrication. The sump housing collects high-momentum lubricant flow and low-momentum lubricant flow. The interior of the sump housing is separated into a plurality of chambers with at least one dynamic seal. The at least one dynamic seal extends between the sump housing and the rotating structure to isolate the high-momentum lubricant flow from the low-momentum lubricant flow.