END SEAL OF TURBOMACHINE ROTOR Russian patent published in 2014 - IPC F16J15/34 F04D29/08 

FIELD: machine building.

SUBSTANCE: end seal of turbomachine rotor comprises a ring element with sealing rings installed on the rotor shaft, the outer surface of the ring element is fitted by radially oriented collar, and a pressing bush installed on the ring element and able of axial displacement with a graphite ring being set in the bush. A spring ring with cross cut is installed between the pressing bush and the ring element collar and is contacting with them by end surfaces. The contacting end surfaces of the pressing bush and the spring ring with the cross cut are made conical.

EFFECT: simplified seal design and its improved reliability in the course of operation due to the decreased degree of graphite ring wear.

4 cl, 2 dwg