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. 19, 2019
Filed:
Dec. 31, 2013
Applicant:
United Technologies Corporation, Farmington, CT (US);
Inventors:
Loc Quang Duong, San Diego, CA (US);
Xiaolan Hu, San Diego, CA (US);
Ernest Boratgis, South Windsor, CT (US);
Michael E. McCune, Colchester, CT (US);
Assignee:
UNITED TECHNOLOGIES CORPORATION, Farmington, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 25/20 (2006.01); F02C 7/36 (2006.01); F16H 57/04 (2010.01); F01D 25/18 (2006.01); F02K 3/06 (2006.01); F02C 3/107 (2006.01); F01D 5/02 (2006.01); F01D 15/08 (2006.01); F01D 15/12 (2006.01); F01D 25/16 (2006.01); F04C 2/344 (2006.01); F04C 13/00 (2006.01); F04C 15/00 (2006.01);
U.S. Cl.
CPC ...
F01D 25/20 (2013.01); F01D 5/02 (2013.01); F01D 15/08 (2013.01); F01D 15/12 (2013.01); F01D 25/16 (2013.01); F01D 25/18 (2013.01); F02C 3/107 (2013.01); F02C 7/36 (2013.01); F02K 3/06 (2013.01); F04C 2/3448 (2013.01); F04C 13/002 (2013.01); F04C 15/008 (2013.01); F04C 15/0061 (2013.01); F16H 57/045 (2013.01); F16H 57/0423 (2013.01); F16H 57/0436 (2013.01); F16H 57/0441 (2013.01); F16H 57/0471 (2013.01); F16H 57/0486 (2013.01); F05D 2220/36 (2013.01); F05D 2260/40311 (2013.01); F05D 2260/98 (2013.01);
Abstract
The present disclosure is applicable to all gear trains using a journal bearing as a means of supporting gear shaft rotation. It is related in some embodiments to a system and method for supplying lubricant to the journal bearings of a gear-turbofan engine gear train when the fan rotor is subjected to a wind-milling condition in both directions, either clockwise or counter-clockwise.