SEAL SLEEVE FOR STEAM TURBINE AND STEAM TURBINE Russian patent published in 2017 - IPC F01D11/02 

FIELD: machine engineering.

SUBSTANCE: steam turbine (40) contains at least the rotor (41) of the turbine and the housing (43) of the turbine, wherein the sealing sleeve (1) is arranged between the shaft (42) of the rotor (41) and the housing (43) and contains at least two through ducts (2, 3), which extend from the part (4) of the sealing sleeve (1), facing the rotor, to a part (5) of the sealing sleeve (1), facing the turbine housing, and are performed so, that their arrangement may correspond to the similar through holes (44, 45) in the housing (43) to provide steam removing (20) of the turbine (40) through the ducts (2, 3) of the sealing sleeve (1) into the through holes (44, 45) of the housing (43). Furthermore, the invention relates to the steam turbine (40) containing at least a rotor (41) with a shaft, body (43) and a sealing sleeve (1) of the specified type.

EFFECT: reliability and tightness increase.

13 cl, 4 dwg