CIRCULAR COMBUSTION WALL WITH PERFECTED COOLING AT PRIMARY BORES AND/OR DILUTION BORES LEVEL Russian patent published in 2016 - IPC F23R3/06 

FIELD: engines and pumps.

SUBSTANCE: multiple primary orifices are distributed in a circle to allow the passage of airflow recycled from circular wall cold side to hot side to create the air-fuel mix. Multiple primary orifices are distributed in a circle to allow the passage of airflow recycled from circular wall cold side to hot side to allow the air-fuel mix dilution. Multiple primary orifices are distributed in a circle to allow the passage of airflow recycled from circular wall cold side to hot side to allow the cooling air film formation along said circular wall. Cooling orifices are distributed in compliance with circular rows axially spaced apart. Geometrical axes of each said orifice are axially inclined in direction D of combustion gaseous products at the angle θ1 relative to perpendicular N to said circular wall. Said circular wall comprises additionally the multiple extra cooling orifices arranged, on one side, downstream of the primary orifices and, on opposite side, directly downstream of dilution orifices. Cooling orifices are distributed in compliance with circular rows axially spaced apart. Geometrical axes of each said extra orifice are located in the plane perpendicular to axial direction D and inclined at the angle θ2 relative to perpendicular N to said circular wall.

EFFECT: higher efficiency of cooling, lower costs, production time saving.

12 cl, 3 dwg