Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – Annular exit chamber outward of runner
Patent
1994-06-13
1996-05-21
Lopez, F. Daniel
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
055183662
ABSTRACT:
An exhaust system for an axial flow turbomachine having a diffuser comprised of inner and outer flow guides that direct the flow of working fluid from a turbine cylinder to an exhaust housing having a bottom opening, thereby turning the flow 90.degree. from the axial to radial direction. The flow exiting at the top of the diffuser is directed by a flow-guiding surface of the exhaust housing to turn 180.degree. from the vertically upward direction to the downward direction. The axial length of the outer flow varies around the circumference thereof as a function of the distance from the flow-guiding surface of the exhaust housing to the inlet of the outer flow guide so that the axial length of the outer flow guide is less than 30% of the height of the last row blade airfoil throughout any portions of the outer flow guide in which the distance from the flow-guiding surface to the outer flow guide inlet is less than the height of the airfoil.
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Lee Michael S.
Lopez F. Daniel
Panian M. G.
Westinghouse Electric Corporation
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