Rotary kinetic fluid motors or pumps – Working fluid bypass
Patent
1975-06-24
1976-06-29
Raduazo, Henry F.
Rotary kinetic fluid motors or pumps
Working fluid bypass
415168, F01D 1700
Patent
active
039663558
ABSTRACT:
An extraction system for extracting steam from the blade path of an axial flow turbine apparatus in a circumferentially uniform manner. Steam is extracted through an extraction orifice having a circumferentially-varying throat portion, the throat communicating with a diffusing passage leading into a circumferentially-extending extraction manifold. The manifold is connected to an extraction pipe of predetermined cross-section area. Steam extracted from the blade path is conducted through the extraction pipe to an associated user apparatus. The dimension of the throat in the longitudinal plane relative to the axis of the shaft and the radial dimension of the manifold in a plane normal to the shaft axis are sized and cooperatively related such that steam is uniformly extracted from the blade path without creating significant pressure variations at various circumferential locations therewithin.
REFERENCES:
patent: 2121645 (1938-06-01), Warren
patent: 2738921 (1956-03-01), Hausmann
patent: 2848155 (1958-08-01), Hausmann
patent: 2906089 (1959-09-01), Kaolosch et al.
patent: 2958456 (1960-11-01), Forshaw
patent: 3398881 (1968-08-01), Greenberg et al.
patent: 3597106 (1971-08-01), Anderson
patent: 3632223 (1972-01-01), Hampton
patent: 3777489 (1973-12-01), Johnson et al.
Raduazo Henry F.
Telfer G. H.
Westinghouse Electric Corporation
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