AFTERBURNER OF BYPASS GAS TURBINE MIXED-FLOW ENGINET (VERSIONS) Russian patent published in 2009 - IPC F02K3/10 

FIELD: engines and pumps.

SUBSTANCE: proposed afterburner comprises separated fan and exhaust loops, front device with flame stabiliser that has inner and outer shelves, fuel jets communicating with fuel manifolds and baffle. Aforesaid fan and exhaust loops are separated by built-up hollow deflector. The deflector tail accommodates stabiliser representing interjointed circular and radial elements linked up with inner shelf of circular element and arranged in exhaust loop. Outer shelf of stabiliser circular shelf is arranged in the fan loop. Fuel manifolds are arranged inside deflector. Fuel nozzles are enclosed by heat-resistant casings and arranged in exhaust loop before each aforesaid radial element of stabiliser. Thermal protection baffle seats between front device casing and stabiliser lower shelf, and can additionally comprise carb fuel circular manifold arranged inside aforesaid hollow deflector and carbs arranged inside stabiliser circular and radial elements. Aforesaid carbs represent perforated tubes with air intakes. Carbs fitted in stabiliser circular elements seat fixed, while those in radial elements may be detached. Note here that deflector outer housing has orifices for deflector inside to communicate with aforesaid fan loop. Front device may incorporate additional intercommunicated fuel jets and manifolds. Additional devices are located behind the flame stabiliser at a distance from stabiliser circular element edge making at least the length of circulation zone. Aforesaid elements are attached to afterburner housing outer surface.

EFFECT: optimum fuel distribution over afterburner cross section, reduced pressure losses, weight and overall dimensions.

8 cl, 12 dwg