Device for fastening a wheel disc on a shaft

Details Device for fastening a wheel disc on a shaft Device for fastening a wheel disc on a shaft

1975-12-11

1977-03-15

Scott, Samuel

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Irregular, flanged or channel forming blade surface

416214A, 416241B, F16D 318

Patent

active

040117375

ABSTRACT:
A device for the torque-transmissive securing of a disc which is formed of a brittle material, in particular a turbine wheel constituted of a ceramic material, onto a shaft. The disc is centered through the intermediary of two cone pairs with axial prestressing and the torque is transmitted to the shaft through a cylindrical extension of the wheel hub with longitudinal grooves formed on the outer circumference thereof; furthermore transmitted by means of a cylindrical bellshaped cover with symmetrically profiled longitudinal connectors in an inner bore which are conformed to the longitudinal grooves, and finally by rollers located between the concave side edges or slopes and the side walls of the longitudinal grooves in radial and tangential contact therewith, by means of the bell-shaped cover which is rigidly fixed on the shaft.

REFERENCES:
patent: 1721060 (1929-07-01), Swartz
patent: 3943703 (1976-03-01), Kronojard

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