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:
Oct. 17, 2017
Filed:
Jul. 31, 2013
Applicant:
United Technologies Corporation, Hartford, CT (US);
Inventors:
Enzo DiBenedetto, Kensington, CT (US);
James B. Coffin, Windsor, CT (US);
Todd A. Davis, Tolland, CT (US);
Assignee:
United Technologies Corporation, Hartford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02C 7/06 (2006.01); F01D 25/20 (2006.01); F01D 25/16 (2006.01);
U.S. Cl.
CPC ...
F02C 7/06 (2013.01); F01D 25/164 (2013.01); F01D 25/20 (2013.01); F05D 2260/96 (2013.01);
Abstract
A method for distributing liquid in a gas turbine engine is disclosed. The method includes rotating a fan shaft coupled to a spool via a fan drive gear system. The spool drives rotation of the fan shaft through the fan drive gear system during operation of the gas turbine engine. A pump is driven via the fan shaft. Liquid is supplied from a sump to the pump under a first operating condition. Liquid is supplied from an auxiliary reservoir to the pump under a second operating condition. Liquid is pumped to a damper.