SEAL OF INNER JOINT BETWEEN GAS TURBINE DISTRIBUTOR AND COMBUSTION CHAMBER Russian patent published in 2013 - IPC F02C7/28 

FIELD: engines and pumps.

SUBSTANCE: proposed seal comprises combustion chamber seal ring and distributor deflector. Said deflector is secured at distributor inner case. Combustion chamber seal ring guide part and distributor deflector make annular gap for feeding cooling air. Seal ring locking part has centering grooves to receive distributor deflector ledges and be centered over side mating surfaces. Annular gap "a" is formed between deflector outer surface and guide part inner surface. Fit with gal "b" is arranged between fire tube seal ring and distributor deflector ledges over side surfaces. For attachment of said deflector to distributor inner case bolts having variable clearance with deflector bores and gap "c" in meridian section. Said bolts make thread joint with distributor inner case bores to allow aforesaid said deflector to shift radially and axially relative to distributor inner case.

EFFECT: reduced vibratory loads, uniform distribution of cooling air in axial direction.

2 dwg