Casing distortion control for rotating machinery

Details Casing distortion control for rotating machinery Casing distortion control for rotating machinery

1995-12-29

1997-02-25

Look, Edward K.

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

415134, F01D 2526

Patent

active

056054386

ABSTRACT:
A turbine casing is provided in two casing halves joined one to the other along a horizontal splitline having flanges with spaced boltholes. A circumferentially extending rib is provided about each casing half at a location just forward of the turbine buckets to minimize or eliminate distortion caused by internal pressure and meridional roll of the casing. One or more axially extending ribs is provided on each casing half. The axial ribs have a radial stiffness which substantially matches the stiffness and thermal response of the flanges.

REFERENCES:
patent: 2710523 (1955-06-01), Purvis
patent: 4725334 (1988-02-01), Brimm
patent: 4920742 (1990-05-01), Nash et al.
patent: 5071313 (1991-12-01), Nichols
patent: 5297932 (1994-03-01), Johnson

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