Fluid flow machine (turbomachine) with increased...

Details Fluid flow machine (turbomachine) with increased... Fluid flow machine (turbomachine) with increased...

2006-03-14

2006-03-14

Nguyen, Ninh H. (Department: 3745)

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Plural rigidly related blade sets

C415S220000

Reexamination Certificate

active

07011495

ABSTRACT:
A fluid-flow machine (turbomachine) includes at least one rotor equipped with blades and at least one stator equipped with vanes, the rotor being supported in a casing by means of a rotating shaft. A form of annulus is provided whose cross-sectional area in a stage consisting of at least one rotor and one stator results in a rotor-stator contraction ratio QRS which satisfies the equation:in-line-formulae description="In-line Formulae" end="lead"?[0.2+(KT−0.45)0.1]<QRS<3.0,in-line-formulae description="In-line Formulae" end="tail"?where KT is the total-stage contraction.

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patent: 69423789 (1997-05-01), None
patent: 19650656 (1998-06-01), None
patent: 9600841 (1996-01-01), None

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