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:
Apr. 14, 2020
Filed:
Oct. 20, 2015
Applicant:
Rolls-royce Plc, London, GB;
Inventors:
Paul Michael Hield, Bristol, GB;
Richard John Tunstall, Bristol, GB;
Caroline Louise Turner, Kingswood, GB;
Alexander Edward Henry Fitzhugh, Bristol, GB;
Assignee:
ROLLS-ROYCE plc, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02C 7/26 (2006.01); F02C 9/18 (2006.01); F02C 9/22 (2006.01); F01D 17/00 (2006.01); F01D 19/00 (2006.01); F01D 25/10 (2006.01); F02C 9/20 (2006.01);
U.S. Cl.
CPC ...
F02C 7/26 (2013.01); F01D 17/00 (2013.01); F01D 19/00 (2013.01); F01D 25/10 (2013.01); F02C 9/18 (2013.01); F02C 9/20 (2013.01); F02C 9/22 (2013.01); F05D 2220/32 (2013.01); F05D 2260/85 (2013.01); F05D 2270/101 (2013.01); Y02T 50/675 (2013.01);
Abstract
A gas turbine engine comprises a compressor driven by a shaft, and a reference starting schedule, the compressor having a reference stability boundary, with the reference starting schedule defining a reference working line. A method of starting the gas turbine engine is described in which the method comprises the steps of: