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. 03, 2015
Filed:
Feb. 24, 2012
Applicants:
Arthur Laurence Rowe, Derby, GB;
Stephen Granville Garner, Ashby-de-la-Zouch, GB;
Marko Bacic, Oxford, GB;
Inventors:
Arthur Laurence Rowe, Derby, GB;
Stephen Granville Garner, Ashby-de-la-Zouch, GB;
Marko Bacic, Oxford, GB;
Assignee:
Rolls-Royce PLC, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01M 15/14 (2006.01); F02C 7/00 (2006.01); F01D 21/00 (2006.01); F01D 21/04 (2006.01); F01D 21/06 (2006.01); G01M 13/02 (2006.01); G01M 15/04 (2006.01); G01H 1/00 (2006.01);
U.S. Cl.
CPC ...
F02C 7/00 (2013.01); F01D 21/003 (2013.01); F01D 21/045 (2013.01); F01D 21/06 (2013.01); G01M 13/02 (2013.01); G01M 15/046 (2013.01); G01M 15/14 (2013.01); G01H 1/006 (2013.01); F05D 2270/021 (2013.01); F05D 2270/09 (2013.01); F05D 2270/091 (2013.01); F05D 2270/304 (2013.01); F05D 2270/335 (2013.01);
Abstract
A shaft break detection system and a method of detecting shaft break for a gas turbine engine. A first indication is calculated from measured rotational speed of a shaft. A second indication is calculated from the rotational speed. A shaft break signal is generated if both indications are true.