Axial flow turbine

Details Axial flow turbine Axial flow turbine

2007-11-27

2007-11-27

Nguyen, Ninh H. (Department: 3745)

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Plural distributing means immediately upstream of runner

C415S199500, C415S211200

Reexamination Certificate

active

11392956

ABSTRACT:
An axial flow turbine provided with a stage composed of a turbine nozzle and a turbine rotor blade arranged in an axial flow direction. Both end portions of a nozzle blade of the turbine nozzle are supported by a diaphragm inner ring and a diaphragm outer ring, and a flow passage is formed to have its diameter expanded from an upstream stage to a downstream stage. In such axial flow turbine, trailing edges at ends of the nozzle blade supported by the diaphragm inner ring and the diaphragm outer ring are curved as a curvature to an outlet side, and an intermediate portion between the trailing edges is formed to be straight.

REFERENCES:
patent: 5088892 (1992-02-01), Weingold et al.
patent: 6126394 (2000-10-01), Matsuda
patent: 6312219 (2001-11-01), Wood et al.
patent: 6491493 (2002-12-01), Watanabe et al.
patent: 10-061405 (1998-03-01), None
patent: 2002-517666 (2002-06-01), None

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