TURBO MACHINE COMBUSTION CHAMBER WITH SPIRAL AIR CIRCULATION Russian patent published in 2013 - IPC F23R3/42 

FIELD: machine building.

SUBSTANCE: proposed combustion chamber has inner annular wall center relative to lengthwise axis, outer annular wall center relative to lengthwise axis, and inner wall to limit annular space making fire tube, transverse annular wall to connect lengthwise inlet ends of inner and outer walls, and multiple fuel injection systems. Inner wall comprises multiple inner steps regularly distributed along lengthwise axis. Every inner step extends in lengthwise direction between two ends of inner wall and, in radial direction, toward outer side of said wall. Interval at circle between two inner walls defines inner cavity. Outer wall comprises multiple inner steps regularly distributed along lengthwise axis. Every outer step extends in lengthwise direction between two ends of outer wall and, in radial direction, toward inner side of said wall. Interval at circle between two inner adjacent walls defines outer cavity. Some inner and outer cavities are supplied with external air in, in fact, one direction and, with fuel, it is supplied in radial direction.

EFFECT: higher efficiency.

6 cl, 4 dwg