MULTIMODE FUEL INJECTOR, COMBUSTION CHAMBER AND JET ENGINE Russian patent published in 2011 - IPC F23R3/28 

FIELD: engines and pumps.

SUBSTANCE: proposed injector comprises at least two aligned fuel spraying systems. Peripheral spraying system comprises distributor with circular distributing chamber communicated with multiple injection holes equally spaced apart along circumference and annular deflector to swirl air flow. Said deflector is arranged outside multiple injection holes and comprises vanes to form air injection channels equally spaced apart along circumference to direct air to fuel jets coming out from injection holes. Every fuel injection axis defined by injection hole has appropriate air channel with at least its innermost part having median crossing said fuel injection axis. Annular deflector comprises two aligned walls with inner truncation upstream and downstream, respectively, their taper being directed downstream. Annular distributing chamber comprises truncated perforated wall. Truncated wall outer surface is parallel with annular deflector top wall or merges therewith.

EFFECT: reduced amount of contaminating emissions at high rpm, particularly, in taking off.

9 cl, 7 dwg