IMPROVED CHARACTERISTICS OF COMBUSTION CHAMBER BY MULTI-PERFORATION OF ITS WALLS Russian patent published in 2011 - IPC F23R3/06 

FIELD: machine building.

SUBSTANCE: in wall there are made multitude of primary orifices, multitude of orifices of dilution to ensure penetration of air moving from cold side of wall to hot side and ensuring combustion and dilution of fuel mixture with air and multitude of cooling orifices designed for penetration of air moving from cold side of wall to its hot side to generate film of cooling air along said wall. The primary orifices and dilution orifices are distributed along radial rows. The cooling orifices are distributed along multitude of radial rows spaced one from another in axial direction at a certain distance; number of these cooling orifices is equal in each of the said rows. A circular wall additionally has multitude of orifices of perforation arranged directly behind and downstream from the primary orifices and dilution orifices and distributed along multitude of circular rows. The perforation orifices of the same row have in essence equal diametre, are spaced from each other at a certain constant interval and possess characteristics different from corresponding characteristics of the said orifices of cooling in adjacent rows.

EFFECT: reduced cost and time for fabrication of circular wall of combustion chamber.

6 cl, 3 dwg