Gaseous fluid aspirator or pump

Details Gaseous fluid aspirator or pump Gaseous fluid aspirator or pump

F - Mech Eng,Light,Heat,Weapons

04

D

F04D 29/28 (2006.01)

Patent

CA 2085009

2085009 9119906 PCTABS00008 A gaseous fluid aspirator/pump apparatus including a rotary impeller (10) with radially extending blades, the impeller being mounted in a housing having a gaseous fluid inlet and outlet wherein gaseous fluid moving from the inlet (15) to the outlet (14) is turned from axial flow into the impeller to radial flow from the impeller, said impeller and an associated portion of the housing (16) being shaped to prevent flow separation and turbulence in the gaseous fluid stream whilst under the influence of the impeller. The impeller inlet (15) includes an inlet configuration of curvate conical from matching the configuration of the housing (16) in the area of the inlet opening. This configuration acting to prevent flow separation whilst turning the fluid flow through a large angle of approximately 90· and acceleration and deceleration of the fluid flow is substantially prevented.

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