Method and apparatus for reducing eccentricity in a turbomachine

Details Method and apparatus for reducing eccentricity in a turbomachine Method and apparatus for reducing eccentricity in a turbomachine

1978-06-26

1980-09-16

Powell, Jr., Everette A.

Rotary kinetic fluid motors or pumps

Including casing part selectively movable relative to fixed...

Circularly around fixed runner axis

403 4, 403DIG7, 415190, 415219R, F01D 2528

Patent

active

042227089

ABSTRACT:
An inherent eccentricity between the rotor bearings and the stator shroud is reduced by intentionally fabricating into each of a pair of frame annuluses, outer and inner surfaces which are relatively eccentric, and then rotating the annuluses with respect to each other until the inherent eccentricity is substantially offset. A method is provided to determine the optimum relative rotational positions as a function of the measured inherent eccentricity, and restrictions in the number of possible rotational positions are considered.

REFERENCES:
patent: 2915280 (1959-12-01), Sonder
patent: 3269677 (1966-08-01), Stoeckly
patent: 3385624 (1968-05-01), Baclini
patent: 3860356 (1975-01-01), Benz
patent: 4127357 (1978-11-01), Patterson

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