Rotary kinetic fluid motors or pumps – Smooth runner surface for working fluid frictional contact
Patent
1979-12-06
1983-09-06
Casaregola, Louis J.
Rotary kinetic fluid motors or pumps
Smooth runner surface for working fluid frictional contact
F01D 136
Patent
active
044026471
ABSTRACT:
An improved vaneless fluid impeller of the friction type including a plurality of co-rotating axisymmetrical aligned spaced annular disks mounted for rotation about a common axis. Depending on whether a low kinematic viscosity or a high kinematic viscosity fluid is being utilized, the spacing between adjacent side surfaces of the disks decreases with increasing radial distance from the axis of rotation or increases with increasing radial distance from the axis of rotation, respectively, to provide increased energy transfer efficiency. The impeller with variable inter-disk spacing may be used either for radial flow directed outwardly or radial flow directed inwardly.
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Burton, W. E. "Make a Model Tesla Turbine" Popular Mechanics, Sep. 1965, pp. 188-193.
Rice, W. "An Analytical and Experimental Investigation of Multiple Disk Pumps and Compressors" Journal of Engineering for Power, Jul. 1963, pp. 191-200.
Hasinger et al. "Investigation of a Shear-Force Pump" Journal of Engineering for Power, Jul. 1963, pp. 201-206.
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