Rotor attachment assembly

Details Rotor attachment assembly Rotor attachment assembly

1989-03-06

1991-06-11

Garrett, Robert E.

Fluid reaction surfaces (i.e., impellers)

Support mounting, carrier or fairing structure

416204A, 403259, 411339, 411366, F04D 2920

Patent

active

050228234

ABSTRACT:
A rotor attachment assembly for securing a rotor, such as a compressor impeller, to a rotor shaft. The assembly comprises a locking nut, a rotor having a flush mounting surface for the flush mounting of the locking nut, and a nut-receiving rotor shaft. The shaft comprises a smooth body and a threaded end which is of less diameter than the shaft body. The nut includes an unthreaded bore portion and a threaded portion. When the rotor is in place on the shaft, part of the smooth body extends beyond the nut flush mounting surface of the rotor. The bore portion of the nut is deeper than the length of the part of the smooth body extending beyond the rotor. Accordingly, when the nut is tightened onto the shaft to press against the rotor, a gap is left between the body of the shaft and the threaded portion of the nut. Coaxiality of the shaft and the rotor is assured by this construction which provides against bending of the shaft.

REFERENCES:
patent: 910678 (1909-01-01), Hardin
patent: 2577134 (1951-12-01), Land
patent: 2799445 (1957-07-01), Hull
patent: 3314701 (1967-04-01), Durham
patent: 3414304 (1988-12-01), Miller
patent: 3611881 (1971-10-01), Little
patent: 3849982 (1974-11-01), Hall
patent: 3904301 (1975-09-01), Schroeder
patent: 4125344 (1973-11-01), Tiefenbacher
patent: 4183719 (1980-01-01), Bozung

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