Control stage nozzle vane for use in partial arc operation

Details Control stage nozzle vane for use in partial arc operation Control stage nozzle vane for use in partial arc operation

1990-06-07

1992-01-14

Look, Edward K.

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Plural distributing means immediately upstream of runner

4152081, 4152171, 298897, F01D 904

Patent

active

050805584

ABSTRACT:
For steam turbines capable of being operated in partial arc operation, the primary arc of admission is provided with nozzle vanes having a thicker trailing edge as compared to the trailing edges of the remaining nozzle vanes, so that chipping and erosion due to a large pressure load during partial load operation is avoided.

REFERENCES:
patent: 1755321 (1930-04-01), Hendrickson
patent: 3699623 (1972-10-01), Kreider
patent: 4274804 (1981-06-01), Teshima et al.
patent: 4780057 (1988-10-01), Silvestri, Jr.

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