Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – Casing having tangential inlet or outlet
Patent
1992-04-06
1993-05-25
Look, Edward K.
Rotary kinetic fluid motors or pumps
Working fluid passage or distributing means associated with...
Casing having tangential inlet or outlet
4152181, 4152191, 416179, 416188, F04D 2918
Patent
active
052134741
ABSTRACT:
A vacuum pump, denoted "VUMP", comprises a pair of nested conical or bell-shaped housings, wherein at least the outer bell-shaped housing forms a part of the pump chamber and has a central inlet. The impeller structure of the pump comprises a circular series of airfoil elements so disposed as to at least partially occupy the annular space defined by the nested conical or bell-shaped members. The airfoil elements each have a vacuum surface directed axially of the impeller towards the central pump inlet. Fluid conveyed through the pump is introduced to the central inlet and directed peripherally of the pump chamber by the inner conical member. Rotation of the circular series of airfoil elements produces a strong vacuum force within the pump that serves to impel fluid through the pump by volumetric displacement.
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patent: 3575525 (1971-04-01), Fox et al.
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patent: 3864055 (1975-02-01), Kletschka et al.
patent: 3961758 (1976-06-01), Morgan
patent: 5102066 (1992-04-01), Daniel
patent: 5137424 (1992-08-01), Daniel
Larson James A.
LCD, Inc.
Look Edward K.
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