INTERMEDIATE SEGMENT FOR HOLDING STATOR RING OF HIGH-PRESSURE TURBINE IN TURBOMACHINE MADE FOR ADJUSTING OF CLEARANCES Russian patent published in 2006 - IPC F01D11/24 F01D25/24 

FIELD: mechanical engineering; high-pressure turbines.

SUBSTANCE: proposed holding intermediate segment for segments of stator ring of high-pressure in turbomachine contains radial walls arranged higher and lower in direction of flow. Radial wall arranged higher and lower in direction of flow. Radial wall arranged higher in direction of flow is provided with outer and inner steps. Outer step of radial wall arranged higher in direction of flow comes into engagement with corresponding cavity made on high-pressure housing of turbomachine. Inner step of radial wall arranged higher in direction of flow comes into engagement with cavity made on segment of stator ring. Radial wall arrangement in direction of flow contains outer and inner steps. Outer step of radial wall arranged lower in direction of flow comes into engagement in axial direction with corresponding cavity made on high-pressure housing of turbomachine. Inner step of radial wall arranged lower in direction of flow is secured on segment of stator ring. Longitudinal step secured on outer side of radial wall arranged higher in direction of flow. Outer support surface is provided on end section of longitudinal step arranged higher in direction of flow. Said outer support surface engages with inner surface of high-pressure housing of turbomachine exerting pressure on said housing. Support surface of end section of longitudinal step is non-solid, being divided by cavities to provide passing of gases.

EFFECT: provision of compensation of functional clearances between stator ring and ends of blades and clearances formed at assembling.

3 cl, 7 dwg