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. 21, 2022
Filed:
Mar. 04, 2021
Applicant:
Rolls-royce North American Technologies Inc., Indianapolis, IN (US);
Inventors:
Kerry J. Lighty, Plainfield, IN (US);
Paul O'Meallie, Brownsburg, IN (US);
Assignee:
Rolls-Royce North American Technologies Inc., Indianapolis, IN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02C 7/18 (2006.01); F02C 7/06 (2006.01); F02C 7/28 (2006.01);
U.S. Cl.
CPC ...
F02C 7/185 (2013.01); F02C 7/06 (2013.01); F02C 7/28 (2013.01); F05D 2240/50 (2013.01); F05D 2240/55 (2013.01); F05D 2240/60 (2013.01); F05D 2260/201 (2013.01); F05D 2260/232 (2013.01); F05D 2260/98 (2013.01);
Abstract
A shaft assembly for a gas turbine engine includes a shaft, a bearing, and an annular sump cover. The shaft is arranged along an axis and configured to rotate about the axis. The bearing is coupled to the shaft to facilitate rotation of the shaft about the axis. The annular sump cover is fixed relative to the axis and is configured to allow a lubrication fluid and a buffer air into an air chamber formed between the shaft, the bearing, and the annular sump cover.