RADIAL INTERSHAFT TURBOMACHINE ROTOR SUPPORT Russian patent published in 2017 - IPC F01D25/16 

FIELD: machine engineering.

SUBSTANCE: well-known radial intershaft turbomachine rotor support comprising a double-row bearing comprising an outer ring the inner working surface of which is cylindrical relative to the longitudinal axis of the support installed in the shaft of the pinion of the central bevel gear, two inner rings mounted on the turbine shaft, the outer working surfaces of which are formed tapered relative to the longitudinal axis of the support, remote ring mounted between inner rings, a separator comprises two split rings, each of which is configured in cross section as a circle according to the present invention. The cones bases of smaller diameter of the mentioned conical outer working surfaces of the inner rings are directed to the opposite sides. Two rows of balls are mounted radially offset from each other inside the mentioned separator, and the mentioned split rings are mounted on the compressor and turbine side respectively relative to the balls, in contact with the latter. The inner working surface sections of the separator which come into contact with the split rings have a conical form relative to the longitudinal axis of the support, the cones bases of smaller diameter are directed to the opposite sides.

EFFECT: reduction of heat generation and required oil pumping in the bearing and in the support as a whole, simplifying the design, increasing of reliability of the bearing and the support as a whole.

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