Diffuser and exhaust system for turbine

Details Diffuser and exhaust system for turbine Diffuser and exhaust system for turbine

2011-05-03

2011-05-03

Kershteyn, Igor (Department: 3745)

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Pump outlet or casing portion expands in downstream direction

C415S224500, C415S225000

Reexamination Certificate

active

07934904

ABSTRACT:
A diffuser and exhaust system is provided for a turbine having an axial-radial diffuser and an exhaust hood including diffuser inner and outer flow guides that extend from an inlet to an outlet. The exhaust hood includes two throats or flow passages between the diffuser outlet and an exhaust hood side wall. The outer flow guide includes a recess, at one of the said two flow passages. The flow passage is positioned in relation to a point in the exhaust hood in the direction of the tangential flow velocity vector, where the point in the exhaust hood is farthest away from the exhaust hood outlet. The recess prevents a re-acceleration of the flow within the exhaust hood and affects an increase in the performance of the diffuser and exhaust hood system.

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patent: 2005233154 (2005-09-01), None

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