Adjustable guide vane assembly for the exhaust flow passage of a

Details Adjustable guide vane assembly for the exhaust flow passage of a Adjustable guide vane assembly for the exhaust flow passage of a

1991-02-20

1993-05-11

Bertsch, Richard A.

Rotary kinetic fluid motors or pumps

Selectively adjustable vane or working fluid control means

Runner, shaft, or separate motor operated

415 26, 4152082, 4152112, F01B 2502

Patent

active

052096343

ABSTRACT:
Apparatus for controlling the steam pressure at the exit of the last row of blades of a steam turbine by means of an adjustable guide vane assembly having a plurality of vane segments supported by the bearing cone that are moved to change the cross-sectional area of the exhaust flow passage so as to improve turbine efficiency under varying operating conditions by minimizing the average pressure in the annulus following the last row of turbine blades.

REFERENCES:
patent: 787039 (1905-04-01), Harris
patent: 2944786 (1960-07-01), Angell et al.
patent: 3005887 (1961-10-01), Robson
patent: 3080824 (1963-03-01), Boyd et al.
patent: 3772886 (1973-11-01), Cameron
patent: 4391564 (1983-07-01), Garkusha et al.

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