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. 06, 2004
Filed:
May. 22, 2002
Satish Gadde, Orlando, FL (US);
Thomas J. Gordon, Winter Springs, FL (US);
Siemens Westinghouse Power Corporation, Orlando, FL (US);
Abstract
A gas turbine engine ( ) including a water injection system ( ) for providing a flow of water ( ) to only a pilot diffusion combustion zone ( ) of a dual-mode combustor ( ) and not to a pre-mixed combustion zone ( ) of the combustor. The selective reduction of peak flame temperature in the pilot flame zone provides a maximum reduction in the production of oxides of nitrogen with a minimum consumption of water. The pilot fuel fraction of the combustor may be increased prior to the initiation of the pilot water injection flow. The flow rate of the pilot injection water may be varied as a function of the power level of the gas turbine, and further as a function of the humidity of the ambient air ( ).