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. 06, 2015
Filed:
Oct. 07, 2010
Shervin Rodd, Chuluota, FL (US);
Adam M. Foust, Orlando, FL (US);
Gary V. Hildebrandt, Oviedo, FL (US);
Damien G. Teehan, St. Cloud, FL (US);
Shervin Rodd, Chuluota, FL (US);
Adam M. Foust, Orlando, FL (US);
Gary V. Hildebrandt, Oviedo, FL (US);
Damien G. Teehan, St. Cloud, FL (US);
Siemens Energy, Inc., Orlando, FL (US);
Abstract
A starting process for a gas turbine () that holds the turbine speed of rotation at an ignition speed setting during an ignition window (), with the ignition speed setting being based on ambient air conditions to achieve a specified combustor air mass flow rate (). A fuel flow rate may be set based on the fuel type and temperature to achieve a particular air/fuel ratio in a combustor. The fuel flow rate may be adjusted during the ignition window and thereafter based on a combustor inlet air temperature (). Completion of ignition may be determined by a reduction () in a blade path temperature spread (). After ignition, fuel flow is increased to accelerate the turbine to full speed. At any point, the fuel flow may be reduced, or its increase may be slowed, to avoid exceeding a temperature limit in the turbine.