Rotor coupling anti-windage apparatus

Details Rotor coupling anti-windage apparatus Rotor coupling anti-windage apparatus

1992-05-08

1993-11-02

Look, Edward K.

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

With runner shaft of specific shape or material

415232, 4151221, F01D 2500

Patent

active

052579050

ABSTRACT:
An anti-windage device is provided for use on the couplings formed by mating flanges of rotors for turbomachines, such as steam turbines and the like. The anti-windage device is comprised of upper and lower anti-windage ring segments. The anti-windage ring segments have holes for each of the nuts that are threaded onto the bolts that join the mating flanges into a rotor coupling. The holes enclose the nuts and the anti-windage ring segments fill the circumferential spaces between adjacent nuts. The ring segments are secured to the rotor flange by causing the nuts to bear against an annular lip formed in each hole. The depth of the holes and the axial thickness of the anti-windage ring is such that the end faces of the anti-windage ring, nuts and bolts are flush, thereby forming a smooth surface that minimizes windage.

REFERENCES:
patent: 1163276 (1915-12-01), Sparling
patent: 1554733 (1925-09-01), Karle
patent: 4083639 (1978-04-01), Terry

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