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:
Jan. 04, 2005
Filed:
Apr. 08, 2003
Applicants:
Arthur L Rowe, Derby, GB;
Michael a Horswill, Chester, GB;
Inventors:
Arthur L Rowe, Derby, GB;
Michael A Horswill, Chester, GB;
Assignee:
Rolls-Royce plc, London, GB;
Primary Examiner:
Int. Cl.
CPC ...
F02C 900 ;
U.S. Cl.
CPC ...
Abstract
An apparatus and method for controlling a gas turbine engine involves calculating a simple corrected speed value for the engine using values of compressor speed and inlet stagnation temperature of the compressor. This simple corrected speed value is then adjusted to take into account the water vapour concentration at the inlet to the compressor. This results in a more accurate value of corrected speed for the compressor, which may be used to modulate the fuel supply to a combustor of the engine or to control the geometry of one or more variable compressors in the engine.