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. 30, 2022
Filed:
Dec. 18, 2018
Applicant:
United Technologies Corporation, Farmington, CT (US);
Inventor:
Francis Parnin, Suffield, CT (US);
Assignee:
Raytheon Technologies Corporation, Farmington, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02C 7/06 (2006.01); F01D 25/20 (2006.01); F01M 1/20 (2006.01); F01M 11/06 (2006.01);
U.S. Cl.
CPC ...
F02C 7/06 (2013.01); F01D 25/20 (2013.01); F01M 1/20 (2013.01); F01M 11/067 (2013.01); F05D 2220/323 (2013.01); F05D 2260/98 (2013.01); F05D 2270/301 (2013.01);
Abstract
A two-tier lubrication system may comprise an oil nozzle located in a bearing compartment. A main oil system may be configured to provide oil to the oil nozzle. A scavenge system may be configured to collect oil from the bearing compartment. A valve may be fluidly coupled between the main oil system and the scavenge system. The valve may be configured to actuate between a main flow position and a scavenge flow position.