Stator cascade of turbo type fluid machine

Details Stator cascade of turbo type fluid machine Stator cascade of turbo type fluid machine

2011-02-22

2011-02-22

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

C415S211200

Reexamination Certificate

active

07891943

ABSTRACT:
In the invention, stator blades are arranged in such a manner that respective intervals between the adjacent stator blades (SV) become unequal at least partly. If the stator blades are arranged as mentioned above, there are formed wave fronts having different moving directions and phases, and these wave fronts are interfered with each other so as to be attenuated. Accordingly, an interference noise is reduced. Therefore, in accordance with the invention, it is possible to reduce an interference noise without enlarging a rotor stator blade interval as well as reducing a used amount of a sound absorption material.

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