Invention Grant
- Patent Title: Hybrid air blast fuel nozzle
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Application No.: US14643335Application Date: 2015-03-10
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Publication No.: US09939157B2Publication Date: 2018-04-10
- Inventor: Nayan Vinodbhai Patel , Duane Douglas Thomsen
- Applicant: General Electric Company
- Applicant Address: US NY Schenectady
- Assignee: General Electric Company
- Current Assignee: General Electric Company
- Current Assignee Address: US NY Schenectady
- Agency: General Electric Company
- Agent Pamela A. Kachur
- Main IPC: F23R3/28
- IPC: F23R3/28 ; F23R3/34 ; F23D11/24

Abstract:
A fuel nozzle apparatus for a gas turbine engine includes: a first pilot fuel injector disposed on a centerline axis of the fuel nozzle which defines a direction of air flow through the fuel nozzle, the first pilot fuel injector being of a pressure atomizing type; an annular second pilot fuel injector at least partially surrounding the first pilot fuel injector, the second pilot fuel injector being of an air blast type and having a fuel outlet disposed axially downstream and radially outboard of the first pilot fuel injector; an annular venturi surrounding the first and second pilot fuel injectors, the venturi including a throat of minimum diameter; an array of inner swirl vanes extending between the first pilot fuel injector and the second pilot fuel injector; and an array of outer swirl vanes extending between the second pilot fuel injector and the venturi.
Public/Granted literature
- US20160265778A1 HYBRID AIR BLAST FUEL NOZZLE Public/Granted day:2016-09-15
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