Patent · US Active

Method of selective combustor control for reduced emissions

US11067279B2 · kind B2 · utility

0Cited by

5References

9Claims

0Family size

Assignee

Siemens Energy Global GmbH & Co. KG · DE

Inventors

Clifford E. Johnson · Orlando, US
Weidong Cai · Oviedo, US
Krishna C. Miduturi · Oviedo, US
Ben Karanja · Orlando, US
Michael Huth · Essen, DE
Werner Krebs · Wetter (Ruhr), DE
Mark Seifarth · Orlando, US
Thomas Primke · Belmont, US
Yohannes Ghermay · Berlin, DE

Key dates

Filing date	May 12, 2016
Grant date	Jul 20, 2021
Priority date	—
Expiry date	Feb 17, 2037

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF23R2900/03343
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method, including: operating an industrial gas turbine engine having a plurality of combustor cans arranged in an annular array, each can having burner stages and a pilot burner arrangement having a premix pilot burner and a diffusion pilot burner; operating in asymmetric combustion, wherein at least one can is a warm can where respective burners stages are off and remaining cans operate as hot cans where respective burner stages are on; and while maintaining a constant rate of fuel flow to the pilot burner arrangement of the warm can, changing fuel fractions within the pilot burner arrangement of the warm can.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.