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. 09, 2021
Filed:
Apr. 18, 2019
Applicant:
Rolls-royce Plc, London, GB;
Inventors:
David A. Edwards, Derby, GB;
Clare L. Bewick, Derby, GB;
Assignee:
Rolls-Royce plc, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01M 11/04 (2006.01); F01M 11/00 (2006.01); B64D 27/10 (2006.01); F01D 25/20 (2006.01); F02K 3/06 (2006.01);
U.S. Cl.
CPC ...
F01M 11/04 (2013.01); F01M 11/0004 (2013.01); F01M 11/0458 (2013.01); B64D 27/10 (2013.01); F01D 25/20 (2013.01); F01M 2011/0033 (2013.01); F01M 2250/60 (2013.01); F02K 3/06 (2013.01); F05D 2220/32 (2013.01); F05D 2260/98 (2013.01);
Abstract
An oil tank filling system for filling the oil tank of a gas turbine engine that includes an aft core cowl. The system includes: an oil tank that is located within a core of the engine; an oil access port located on the aft core cowl; an oil tank filling pipe that connects the oil access port to a tank filling port on the oil tank; and a hydraulic lock that prevents oil entering the oil tank once the oil tank contains a predetermined volume of oil. A method of filling the oil tank of a gas turbine engine and a gas turbine engine that includes the oil tank filling system are also disclosed.