Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – Annular exit chamber outward of runner
Patent
1992-06-30
1993-11-02
Look, Edward K.
Rotary kinetic fluid motors or pumps
Working fluid passage or distributing means associated with...
Annular exit chamber outward of runner
415225, 4152112, F01D 2530
Patent
active
052579069
ABSTRACT:
An exhaust system for an axial flow turbomachine is provided having a diffuser that directs the flow of working fluid from a turbine exit to an exhaust housing having a bottom opening, thereby turning the flow 90.degree. from the axial to radial direction. In the exhaust housing, the flow exiting at the top of the diffuser turns 180.degree. from the vertically upward direction to the downward direction. The strength of the vortex formed in the exhaust housing as a result of this turning is minimized by orienting the outlet of an outer exhaust flow guide portion of the diffuser so that it lies in a plane that makes an angle with a plane perpendicular to the turbine axis. As a result, the minimum axial length of the outer flow guide occurs at a location remote from the exhaust housing outlet and the maximum axial length occurs at a location proximate the opening, thereby crowding the vortex against a radially extending baffle in the exhaust housing.
REFERENCES:
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patent: 3149470 (1964-09-01), Herzog
patent: 3690786 (1972-09-01), Silvestri, Jr.
patent: 3697191 (1972-10-01), Heymann
patent: 3945760 (1976-03-01), Miller
patent: 4390319 (1983-06-01), Garkusha et al.
patent: 4391566 (1983-07-01), Takamura
patent: 4863341 (1989-09-01), Groenendaal
Gray Lewis
Hofer Douglas C.
Kron Susan M.
Wynn Robert C.
Lee Michael S.
Look Edward K.
Westinghouse Electric Corp.
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