Title:
CAN-ANNULAR COMBUSTOR BURNER WITH NON-UNIFORM AIRFLOW MITIGATION FLOW CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2017/119993
Kind Code:
A3
Abstract:
Can-annular burners (50) for gas turbine engines with flow conditioners having locally varying, asymmetrical patterns of circumferential perforations, to promote uniform fuel-air mixture among all premixers (54) in the burner basket (58). Any one or more of the perforation pattern pattern density, perforation profiles and perforation cross sectional area is locally varied to alter circumferential airflow into the burner basket (52), which in turn mitigates non-uniform thru-flow variations across the burner's air inlet plane (58). In some embodiments, the flow conditioner asymmetric perforation patterns are tailored for individual burner locations within the engine's combustor section annular ring, which mitigates non¬ uniform thru-flow variation among different respective burners (50) in the combustor section annular ring. Thru-flow uniformity within each burner (50) and among all the combustor section burners (50) promotes uniform engine combustion.
Inventors:
HURNEY JAMES M (US)
POLYZOPOULOS CHARALAMBOS (US)
THACKWAY RICHARD L (US)
POLYZOPOULOS CHARALAMBOS (US)
THACKWAY RICHARD L (US)
Application Number:
PCT/US2016/066307
Publication Date:
August 17, 2017
Filing Date:
December 13, 2016
Export Citation:
Assignee:
SIEMENS ENERGY INC (US)
International Classes:
F23R3/10; F23R3/46
Foreign References:
| US20120006029A1 | 2012-01-12 | |||
| US20100275601A1 | 2010-11-04 | |||
| US20140338354A1 | 2014-11-20 | |||
| DE102010016460A1 | 2011-01-05 | |||
| US7762074B2 | 2010-07-27 |
Attorney, Agent or Firm:
FIL, Michele S. (US)
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