TUBULAR ANNULAR COMBUSTION CHAMBER OF GAS-TURBINE ENGINE Russian patent published in 2007 - IPC F23R3/46 F23R3/60 

FIELD: mechanical engineering; gas-turbine engines.

SUBSTANCE: proposed tubular-annular combustion chamber of gas-turbine engine contains deflector and air two-tier swirler installed in head from side of gas space of flame tube, air two-tier swirler being arranged from outer side of flame tube. Deflector is installed telescopically by means of axial rods relative to head of flame tube. Said axial rods are made integral with deflector, and they clearance through holes in head of flame tube. Deflector is fixed in axial direction by bushings installed on rods from outer side of flame tube engaging through side surfaces with mating cavities in swirler and adjoining by one end face to head of flame tube and by other end face, to head of rod. Deflector is additionally fitted by inner axial projections on outer radial ring rib of swirler. Air space between head of flame tube and deflector is made communicating with cooling air through perforation in flame tube head and is connected at outlet with gas space of flame tube through slot annular air space.

EFFECT: improved reliability of tubular annular combustion chamber owing to improved heat release from deflector and exclusion of additional stresses at temperature deformations.

4 dwg