Invention Grant
- Patent Title: Prefilming air blast (PAB) pilot having annular splitter surrounding a pilot fuel injector
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Application No.: US14735732Application Date: 2015-06-10
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Publication No.: US10184665B2Publication Date: 2019-01-22
- Inventor: Michael Anthony Benjamin , Alfred Albert Mancini , Rameshkumar Muthuvel Chandrasekaran
- 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 Kachur
- Main IPC: F23R3/28
- IPC: F23R3/28 ; F23D11/10 ; F02C7/22

Abstract:
A fuel nozzle is provided for a gas turbine engine, and can include a pilot fuel injector having an axially-elongated, inner pilot centerbody wall and an outer pilot centerbody wall, with the axially-elongated, inner pilot centerbody wall extending from an upstream end to an annular fuel passage defining the downstream end of the pilot fuel injector. The fuel passage intersects with the inner pilot centerbody wall at a pilot fuel metering orifice. The fuel nozzle also includes a pilot fuel film surface downstream from the annular fuel passage and an annular splitter surrounding the pilot fuel injector. The annular splitter comprises, in axial sequence: an upstream section, a splitter throat having a diameter that is larger than a downstream diameter defined by the pilot fuel film surface, and a downstream diverging surface having an average diverging angle of about 24° to about 40° in relation to a centerline axis.
Public/Granted literature
- US20160363320A1 PREFILMING AIR BLAST (PAB) PILOT HAVING ANNULAR SPLITTER SURROUNDING A PILOT FUEL INJECTOR Public/Granted day:2016-12-15
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