Invention Grant
- Patent Title: Air fuel premixer for low emissions gas turbine combustor
- Patent Title (中): 用于低排放燃气轮机燃烧器的空气燃料预混机
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Application No.: US14243951Application Date: 2014-04-03
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Publication No.: US09534788B2Publication Date: 2017-01-03
- Inventor: Suhui Li , Narendra Digamber Joshi , Keith Robert McManus
- Applicant: General Electric Company
- Applicant Address: US NY Niskayuna
- Assignee: General Electric Company
- Current Assignee: General Electric Company
- Current Assignee Address: US NY Niskayuna
- Agent Ann M. Agosti
- Main IPC: F23R3/28
- IPC: F23R3/28 ; F23R3/14

Abstract:
A system for premixing fuel and air prior to combustion in a gas turbine engine includes a mixing duct, a centerbody fuel injector located along a central axis of the mixing duct an outer annular swirler located adjacent an upstream end of the mixing duct for swirling air flowing therethrough in a first swirl direction and an inner annular swirler located adjacent of the mixing duct upstream end for swirling air flowing therethrough in a second swirl direction. The system includes a hub separating the inner and outer annular swirlers to permit independent rotation of an air stream therethrough and multiple hollow paths located radially outward around the centerbody fuel injector and at a radially inward side of the inner annular swirler for allowing a flow of sweeping air over the surface of the centerbody fuel injector.
Public/Granted literature
- US20150285503A1 AIR FUEL PREMIXER FOR LOW EMISSIONS GAS TURBINE COMBUSTOR Public/Granted day:2015-10-08
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