COMBUSTION CHAMBER THAT CONTAINS FLEXIBLE CONNECTION BETWEEN HEAD AND WALL OF CHAMBER Russian patent published in 2009 - IPC F23R3/60 

FIELD: engines and pumps.

SUBSTANCE: annular combustion chamber of gas turbine engine comprises radially installed external and internal walls, chamber head installed between specified walls in upper area of chamber. Chamber head is fixed in walls with the help of multiple radially installed internal fastening flanges and multiple radially installed external fastening flanges located in front of chamber head, with the help of bolt connection of specified flanges areas with specified walls. At least multiple fastening flanges are inbuilt into ring that is rigidly fixed to chamber head, and comprise multiple pairs of lugs directed in direction of upper area and projecting outside the limits of bolt connection areas. At that two lugs of the same pair are located in circumferential direction on both sides of bolt connection zone and are connected by their upper ends to upper end of fastening plate installed between specified two lugs and comprising area of bolt connection intended for fastening to adjacent wall.

EFFECT: creation of new fastening flange that provides sufficient flexibility for compensation of gaps from radial expansion of different parts and having small dimensions in radial direction.

7 cl, 6 dwg