Turbine
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United States of America Patent
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Dec 12, 2017
Grant Date -
Feb 12, 2015
app pub date -
Apr 2, 2013
filing date -
Apr 3, 2012
priority date (Note) -
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Abstract
A multi-stage turbine (16) is designed as an induction turbine with vapour induction in at least one intermediary stage. It is more particularly conceived as a radial-outward-flow type multi-stage turbine, with an axial main vapour inlet port (82) and an annular secondary vapour inlet port (84), which is arranged in the turbine (16) so as to annularly induce, in an intermediary stage of said turbine, a secondary vapour stream into an already partially expanded radial main vapour stream. The annular secondary vapour inlet port (84) comprises as a ring-zone (92) with through holes (94), which radially surrounds said axial main vapour inlet port (82) in a first turbine housing part (80). The axial vapour inlet port comprises a first tubular vapour inlet connection (82). The annular vapour inlet port comprises a second tubular vapour inlet connection (84) surrounding the first tubular vapour inlet connection (82), so as to define with the latter an annular space (86), wherein the ring-zone (92) with through holes (94) is arranged in this annular space (86).
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