Air-cooled swirlerhead

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8857739
APP PUB NO 20120079827A1
SERIAL NO

13323754

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A combustor for a gas turbine engine is disclosed which is able to operate with high combustion efficiency, and low nitrous oxide emissions during gas turbine operations. The combustor consists of a can-type configuration which combusts fuel premixed with air and delivers the hot gases to a turbine. Fuel is premixed with air through a swirler and is delivered to the combustor with a high degree of swirl motion about a central axis. This swirling mixture of reactants is conveyed downstream through a flow path that expands; the mixture reacts, and establishes an upstream central recirculation flow along the central axis. A cooling assembly is located on the swirler co-linear with the central axis in which cooler air is conveyed into the prechamber between the recirculation flow and the swirler surface.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
FLEXENERGY ENERGY SYSTEMS, INC.IRVINE, CA28

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Finstad, Brian Eliot, US 3 5
Haplau-Colan, Alexander Stratham, US 7 48
Huang, Yimin Seabrook, US 69 645
Sullivan, Shaun Northwood, US 4 33

Cited Art Landscape

Patent Info (Count) # Cites Year
 
GENERAL ELECTRIC COMPANY (10)
5251447 Air fuel mixer for gas turbine combustor 98 1992
* 5351477 Dual fuel mixer for gas turbine combustor 89 1993
* 5444982 Cyclonic prechamber with a centerbody 16 1994
5511375 Dual fuel mixer for gas turbine combustor 53 1994
5590529 Air fuel mixer for gas turbine combustor 35 1994
5816049 Dual fuel mixer for gas turbine combustor 43 1997
6141967 Air fuel mixer for gas turbine combustor 72 1998
6279323 Low emissions combustor 23 1999
* 6951108 Gas turbine engine combustor can with trapped vortex cavity 21 2004
7878000 Pilot fuel injector for mixer assembly of a high pressure gas turbine engine 13 2005
 
ALLIEDSIGNAL INC. (1)
5431019 Combustor for gas turbine engine 7 1993
 
SOLAR TURBINES INCORPORATED (1)
4373325 Combustors 29 1980
 
SIEMENS AKTIENGESELLSCHAFT (1)
* 5761906 Fuel injector swirler arrangement having a shield means for creating fuel rich pockets in gas-or liquid-fuelled turbine 13 1995
 
OPRA TECHNOLOGIES B.V. (1)
2009/0165,435 Dual fuel can combustor with automatic liquid fuel purge 12 2008
 
HITACHI, LTD. (1)
* 4898001 Gas turbine combustor 63 1988
 
FLEXENERGY ENERGY SYSTEMS, INC. (1)
5450724 Gas turbine apparatus including fuel and air mixer 41 1993
* Cited By Examiner

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