Pumps – Motor driven – Axial thrust balancing means for rotary pump and motor
Patent
1975-11-10
1977-05-24
Croyle, Carlton R.
Pumps
Motor driven
Axial thrust balancing means for rotary pump and motor
417379, 417407, 417408, F04B 1700, F04B 4708
Patent
active
040252400
ABSTRACT:
A geothermal energy transfer and utilization system makes use of thermal energy stored in hot solute-bearing well water to generate super-heated steam from an injected flow of clean water; the super-heated steam is then used for operating a turbine-driven pump at the well bottom for pumping the hot solute-bearing water at high pressure and in liquid state to the earth's surface, where it is used by transfer of its heat to a closed-loop boiler-turbine-alternator combination for the generation of electrical or other power. Residual concentrated solute-bearing water is pumped back into the earth. The clean cooled water is regenerated at the surface-located system and is returned to the deep well pumping system also for lubrication of a novel bearing arrangement supporting the turbine-driven pump system. The bearing system employs liquid lubricated thrust and radial bearings with all bearing surfaces bathed in clean water serving as a lubricant and maintained under pressure to prevent entry into the bearings of contaminated geothermal fluid, an auxiliary thrust ball bearing arrangement comes into operation when starting or stopping the pumping system.
REFERENCES:
patent: 2633392 (1953-03-01), Luenberger
patent: 2736825 (1956-02-01), Hill
patent: 2739756 (1956-03-01), Walter
patent: 3664758 (1972-05-01), Sato
patent: 3740163 (1973-06-01), Schinnerer et al.
patent: 3817653 (1974-06-01), Onal
patent: 3824793 (1974-07-01), Matthews
patent: 3890065 (1975-06-01), Eller et al.
patent: 3947153 (1976-03-01), Matthias et al.
Croyle Carlton R.
Smith Leonard
Sperry Rand Corporation
Terry Howard P.
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