Pumps – Motor driven – Fluid motor
Patent
1978-05-10
1980-08-05
Koczo, Michael
Pumps
Motor driven
Fluid motor
415 93, 415 95, 415101, F01D 302, F04B 1700, F04B 3500
Patent
active
042159768
ABSTRACT:
A turbine impeller pump particularly for use in a geothermal pumping system has a casing with a hollow cylindrical stator or axle fixedly connected in the longitudinal axis thereof which stator or axle defines a flow passage for motive fluid and enables a rotor assembly to be rotatably mounted thereon. The rotor has spaced composite impellers which lie in assembled position in medially disposed pumping chambers in the casing having a suction inlet for fluid to be pumped and a discharge outlet for pumped fluid. The rotor further has first and second multi-stage axial flow driving assemblies disposed on opposite sides of the spaced composite impellers so that the motive fluid for driving the same can be passed to the respective adjacent composite impellers and delivered with the fluid being pumped. The oppositely disposed driving assemblies are positioned to substantially balance the axial forces acting across the rotor and a thrust bearing assembly is operatively associated with the rotor for overcoming any residual axial forces acting along the rotor during operation of the turbine-impeller pump. A lubrication system is provided for lubricating the thrust bearing assembly.
Additionally, a geothermal pumping system utilizing a turbine-impeller pump as above described includes, a recirculating pumping assembly for recirculating a portion of the fluid being pumped to provide motive fluid for operating the respective first and second multi-stage axial flow driving assemblies. The lubrication system is preferably located at a point remote from the turbine-impeller pump.
REFERENCES:
patent: 874356 (1907-12-01), Carnt et al.
patent: 969869 (1910-09-01), Hodgkinson
patent: 1811948 (1931-06-01), Loomis et al.
patent: 2083167 (1937-06-01), Lamere
patent: 2516822 (1950-07-01), Yates
patent: 2726606 (1955-12-01), Davidson
patent: 3087434 (1963-04-01), Reichenbacher
patent: 3960468 (1976-06-01), Boorse et al.
Bobis Daniel H.
Koczo Michael
Worthington Pump, Inc.
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