Arrangement for controlling the flow cross section of a turbomac

Details Arrangement for controlling the flow cross section of a turbomac Arrangement for controlling the flow cross section of a turbomac

1992-03-20

1993-12-14

Kwon, John T.

Rotary kinetic fluid motors or pumps

Selectively adjustable vane or working fluid control means

4151492, 415151, 4151542, F01D 1718

Patent

active

052696480

ABSTRACT:
An arrangement for controlled admission to a nozzle assembly of axial flow extraction steam turbines consists essentially of a control valve located upstream of the nozzle assembly and having two inlet windows for the working medium and of a duct element located between the control valve and the nozzle assembly. The duct element is provided with a plurality of inlet flow ducts which connect the inlet windows of the control valve to the nozzles of the nozzle assembly. The control valve is rotatable by 180.degree. in the peripheral direction for increasing the opening or closing of the inlet flow ducts.

REFERENCES:
patent: 707727 (1902-08-01), Schulz
patent: 746388 (1903-12-01), Scheffler
patent: 884719 (1908-04-01), Cramp
patent: 958430 (1910-05-01), Parsons
patent: 3209537 (1965-10-01), Mock
Maschinenbautechnik, Berlin 38, 1989, pp. 17-19, K. Speicher, et al., "Zur Entwicuklung Von Niederdruck-Dampfsteuerorganen, Derzeitiger Stand Und Kunftige Moglichkeiten".

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