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. 16, 2020
Filed:
Aug. 08, 2017
Applicant:
Rolls-royce Plc, London, GB;
Inventor:
Christopher P Heason, Chesterfield, GB;
Assignee:
ROLLS-ROYCE plc, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 25/28 (2006.01); F01D 5/00 (2006.01); F02C 7/00 (2006.01); F02C 7/055 (2006.01);
U.S. Cl.
CPC ...
F01D 25/285 (2013.01); F01D 5/005 (2013.01); F02C 7/00 (2013.01); F02C 7/055 (2013.01); F05D 2230/232 (2013.01); F05D 2230/72 (2013.01); F05D 2230/80 (2013.01); F05D 2260/02 (2013.01);
Abstract
A gas shield arrangement for a gas turbine engine includes a first gas shield that is arranged to cover an inlet of a gas flow path of the gas turbine engine and a second gas shield that is arranged to cover a first outlet of the gas flow path of the gas turbine engine. The gas shield arrangement further includes a reservoir that holds fluid and a pump that pumps the fluid from the reservoir to one of a first valve and a second valve and that returns at least some of the pumped fluid to the reservoir from the other of the first valve and the second valve.