US 11,892,166 B2
Fuel injector with a purge circuit for an aircraft turbine engine
Thomas Jean Olivier Lederlin, Moissy-Cramayel (FR); Denis Luc Alain Chanteloup, Moissy-Cramayel (FR); and Simon Arthur Meilleurat, Moissy-Cramayel (FR)
Assigned to SAFRAN HELICOPTER ENGINES, Bordes (FR)
Appl. No. 17/628,393
Filed by SAFRAN HELICOPTER ENGINES, Bordes (FR)
PCT Filed Jul. 16, 2020, PCT No. PCT/FR2020/051274
§ 371(c)(1), (2) Date Jan. 19, 2022,
PCT Pub. No. WO2021/014074, PCT Pub. Date Jan. 28, 2021.
Claims priority of application No. 1908419 (FR), filed on Jul. 24, 2019.
Prior Publication US 2022/0282869 A1, Sep. 8, 2022
Int. Cl. F23R 3/28 (2006.01)
CPC F23R 3/283 (2013.01) 13 Claims
OG exemplary drawing
 
1. A fuel injector for an aircraft turbine engine, comprising a tubular body having an axis of elongation and comprising a first longitudinal end configured to supply fuel and a second longitudinal end configured to eject a jet of fuel, said body further comprising an integrated purge air circuit which comprises an internal cavity in fluid communication with air supply orifices located on the body and which comprises an annular portion extending around said axis of elongation and connected to air outlet channels opening at said second end, wherein air flow disruptors are provided projecting into the annular portion of said internal cavity, wherein said second end comprises a elongated tubular portion comprising an axis of elongation substantially perpendicular to said axis of elongation of said body, said elongated tubular portion having two longitudinal ends which are opened and which are configured to form respectively two inlets distinct for two fuel flows intended to meet together at the middle of said elongated tubular portion, said elongated tubular portion comprising at least one slot for ejecting a flat jet of fuel.