Bladeless impeller and impeller having internal heat transfer me

Rotary kinetic fluid motors or pumps – Smooth runner surface for working fluid frictional contact

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415 531, 415180, F01D 136

Patent

active

053889584

ABSTRACT:
An impeller displaces fluids without turbulence, thereby reducing noise and increasing efficiency. The impeller employs annular disks stacked on a shaft which may be rotatably mounted in a specially shaped housing. The disks cooperate with a complementary surface formed, e.g., by the interior of the impeller housing or by another impeller, so as to use a combination of surface friction, centrifugal forces, and a venturi effect to propel fluids tangentially without turbulence. The impeller is well suited for use with a heat exchange device because the flat disks present a large surface area providing good heat exchange with fluids flowing past the disks. A heat pipe or other suitable heat transfer mechanism may be provided in the shaft of the impeller to form a heat transfer system integral with the impeller for heating or cooling purposes.

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