DEVICE FOR FASTENING OF FLAME IN COMBUSTION CHAMBER BODY Russian patent published in 2001 - IPC

FIELD: manufacture of gas-turbine aircraft engines. SUBSTANCE: device for fastening of flame tube in combustion chamber body has pins with flanges. Pins are secured to body flanges by bolts with their one ends, and their other ends are installed through holes in body flanges into holes of inner race of hinged bearings secured in its turn in bosses of flame tube. Outer races of hinged bearings are combined of two circular parts. One ring is installed in boss with preload over outer diameter and pressed to boss and face. The other ring is installed with axial clearance relative to the first ring with diametrical gap in boss and spring-loaded in axial direction by pack of disc springs. EFFECT: higher operating reliability and prolonged service life. 3 dwg