Flat-jet fuel injector for an aircraft turbine engine

A technology of turbine engine and fuel injector, which is applied in the directions of injection device, liquid injection device, burner, etc., can solve the problem of expensive micro-catheter, and achieve the effects of simplifying manufacturing, improving manufacturability, and simplifying manufacturing.
CN110832255AActive Publication Date: 2020-02-21SAFRAN HELICOPTER ENGINES
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SAFRAN HELICOPTER ENGINES
Publication Date
2020-02-21

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Abstract

A flat-jet fuel injector for an aircraft turbine engine, comprising a body (112) having a generally elongate shape having a longitudinal axis A, said body comprising a main pipe (118) having a generally elongate shape having a longitudinal axis B substantially perpendicular to said longitudinal axis A, the two longitudinal ends (120) of said main pipe being connected directly and respectively to longitudinal ends of two secondary pipes (119) having a generally elongate shape having a longitudinal axis C at least substantially parallel to said longitudinal axis A, and being configured to form,respectively, two separate fuel flow inlets intended to meet substantially at the middle of said main pipe which comprises at least one ejection slot (124) for ejecting said fuel jet, characterised inthat at least one of said main and secondary pipes defines a flow area, at least one geometric parameter of which, such as the shape or a dimension, varies along said pipe and / or is different from the same geometric parameter defined by a flow area of another of said pipes.
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Description

technical field

[0001] The present invention relates to flat jet fuel injectors for aircraft turbine engines. Background technique

[0002] The background art includes documents FR-A1-2 971 039 and FR-A1-3 013 805 in particular.

[0003] A mixture of compressed air and a suitable fuel is typically injected into the combustion chamber of a turbine engine using one or more injectors. The injector is for example fixed to the housing and passes through an orifice in the chamber wall in preparation for injecting fuel into the chamber in the form of flaked fuel droplets.

[0004] Flat jet fuel injector 10 (such as Figure 1 to Figure 4 The illustrated flat jet fuel injector) generally includes a body 12 having a generally elongated shape with an axis A of elongation. The body 12 comprises a first longitudinal end 14 for fuel supply and a second longitudinal end 16 for injecting a flat jet of fuel. The second end portion 16 includes a main tube 18 having a generally elongated sh...

Claims

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