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:
Jul. 28, 2026
Filed:
May. 23, 2024
Solar Turbines Incorporated, San Diego, CA (US);
Jonathan Duckers, San Diego, CA (US);
Steven M. Skinner, San Diego, CA (US);
Angelica Orduno, San Diego, CA (US);
Paul Economo, Carlsbad, CA (US);
Michel Akiki, Menifee, CA (US);
Donald J. Cramb, San Diego, CA (US);
Solar Turbines Incorporated, San Diego, CA (US);
Abstract
It has become increasingly necessary to offer low-emission systems, within gas turbine engines, that have emission warranties at lower engine loads. State-of-the-art solutions are expensive and complex. Accordingly, in an embodiment, the fuel-injection head of a fuel injector comprises a splitter that splits an annular passage for swirling an air-fuel mixture into two passages. In addition, the fuel injector is configured to independently supply fuel to each of the two passages to provide an internally variable fuel staged double swirler lean premix injector. This internal fuel staging allows for an extension of emission warranties at lower engine loads. Embodiments may also utilize gas streams to purge fuel away from surfaces inside the passages.