GTE COMBUSTION CHAMBER FRONT DEVICE FUEL-AIR MODULE Russian patent published in 2012 - IPC F23R3/28 

FIELD: engines and pumps.

SUBSTANCE: proposed module comprises liquid fuel preparation and feed system consisting of pilot and main circuits and air channels communicated therewith. Pilot circuit comprises central injector with fuel feed line, inner air channel with swirler arranged coaxially with said injector and limited by outer wall. Main circuit comprises outer radial-axial L-shape air channel arranged above inner air channel limited by front and rear face walls with radial vane swirler and integrated with front face wall by annular shield with sharp edge facing combustion chamber. Annular manifold of the main fuel feed circuit is arranged ahead of said shield, with fuel feed main at inlet and fuel spray system on outlet. Inlet channel at outlet features the shape of diffuser with outer face that makes flame annular stabiliser. Central annular air channel wit vane swirler at inlet is arranged coaxially between shield and outer wall of air inner channel and, above them, main circuit fuel spray system channel with auger is located. Outlets of fuel channel and central air channel are directed to ward shield inner surface. Outer air channel section of transition from radial into axial is made sooth. Central and outer air channels behind shield sharp edge are integrated into common external channel.

EFFECT: notable reduction in emission of harmful substance in liquid fuel combustion products.

8 cl, 1 dwg