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:
Sep. 20, 2022
Filed:
Aug. 27, 2020
Applicant:
Rolls-royce Plc, London, GB;
Inventor:
Stephen J. Bradbrook, Clevedon, GB;
Assignee:
Rolls-Royce PLC, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 19/00 (2006.01); F01D 9/04 (2006.01); F01D 17/00 (2006.01); F02C 9/26 (2006.01); F01D 17/14 (2006.01);
U.S. Cl.
CPC ...
F01D 19/00 (2013.01); F01D 9/041 (2013.01); F01D 9/045 (2013.01); F01D 17/00 (2013.01); F01D 17/14 (2013.01); F02C 9/26 (2013.01); F05D 2230/90 (2013.01); F05D 2240/12 (2013.01); F05D 2240/80 (2013.01); F05D 2260/85 (2013.01);
Abstract
A gas turbine engine comprising: a combustor configured to initiate combustion; and a turbine comprising a stator vane ring defining a plurality of passageways between adjacent vanes; wherein at least one of the passageways is provided with a restrictor which defines a temporary gas washed surface for the stator vane ring and is configured to be ablated upon initiation of combustion to reveal an operational gas washed surface of the stator vane ring. A method of starting a gas turbine engine is also described.