The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 08, 1976
Filed:
Aug. 14, 1974
Kenneth E Nichols, Arvada, CO (US);
Sperry Rand Corporation, New York, NY (US);
Abstract
A geothermal energy transfer and utilization system extracts 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 driving a turbine-driven pump at the well bottom for pumping the hot solute-bearing water at high pressure and always in liquid state to the earth's surface, where it is used by transfer of its heat content to a closed-loop vapor generator-turbine-alternator combination for the generation of electrical or other power. Cooled, clean water is regenerated by the surface-located system for re-injection into the deep well and the residual concentrated solute-bearing water is pumped back into the earth. The invention features heat exchanger apparatus located adjacent the turbine-driven pump for permitting steam exhausted by the turbine to cool that part of the re-injected water used as a hydraulic bearing lubricant.