PASSIVE SECONDARY AIR ASSIST NOZZLES

An injection system includes an inner nozzle body (138) defining a first air path (140) along a longitudinal axis. The first air path (140) defines a converging-diverging section between an upstream portion of the first air path (140) and an outlet orifice (126) of the first air path (140). A main o...

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Bibliographic Details
Main Authors PROCIW, Lev A, WILLIAMS, Brandon Phillip, RYON, Jason
Format Patent
LanguageEnglish
French
German
Published 04.01.2023
Subjects
BLASTING
COMBUSTION APPARATUS
COMBUSTION PROCESSES
GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGHVELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
HEATING
LIGHTING
MECHANICAL ENGINEERING
WEAPONS
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Summary:An injection system includes an inner nozzle body (138) defining a first air path (140) along a longitudinal axis. The first air path (140) defines a converging-diverging section between an upstream portion of the first air path (140) and an outlet orifice (126) of the first air path (140). A main orifice (146) is defined at a narrowest portion of the converging-diverging section. A fuel circuit wall is outboard of the inner nozzle body (138). A fuel path is defined between the fuel circuit wall and the inner nozzle body (138). An outer nozzle body outboard of the fuel circuit wall has a second air path defined through the inner nozzle body (138) for communication of air from the outer nozzle body into the first air path (140), wherein the second air path meets the first air path (140) at a second orifice in the first air path (140) downstream of the main orifice (146) of the inner nozzle body (138).
Bibliography:Application Number: EP20220181590