Patents
Sitemap › F03 - Machines or engines for liquids; Wind, spring, or weight motors; Producing mechanical power or a reactive propulsive thrust, not otherwise provided for › F03G - Spring, weight, inertia, or like motors; Mechanical-power-producing devices or mechanisms, not otherwise provided for or using energy sources not otherwise provided for › F03G 4 - Devices for producing mechanical power from geothermal energy
Patents for F03G 4 - Devices for producing mechanical power from geothermal energy (645)
12/1989
12/20/1989EP0168494B1 Utilization of thermal energy
09/1989
09/26/1989US4869066 Method for the production of usable steam and non-toxic solids from geothermal brine
09/19/1989US4866939 Method and apparatus for extracting geothermal fluid
08/1989
08/09/1989EP0326736A2 Geothermal energy recovery apparatus
10/1988
10/11/1988US4776169 Geothermal energy recovery apparatus
08/1988
08/30/1988US4766730 Gas ejecting system for main condenser in geothermal steam turbine plant
08/16/1988US4763479 Removal of non-condensable gases, flashing, anaerobic process; nonprecipitation of toxic solids
05/1988
05/24/1988US4745756 HDR closed loop steam generation
02/1988
02/18/1988DE3627680A1 Method for obtaining terrestrial heat
01/1988
01/12/1988US4718236 Apparatus and method for mineral recovery from geothermal and geopressured brines
12/1987
12/15/1987US4712380 Utilization of thermal energy
09/1987
09/16/1987EP0236640A1 Method and apparatus for extracting geothermal fluid
05/1987
05/19/1987US4665705 Geothermal plant silica control apparatus and method
04/1987
04/28/1987US4661459 Measurement of steam-gas ratios in geothermal well streams
02/1987
02/24/1987US4644750 Heat recovery systems
02/17/1987US4642987 Process and equipment for the utilization of geothermic energy
10/1986
10/15/1986CN86102061A Geathermal turbine plant
08/1986
08/13/1986EP0190161A1 Improvements in earth heat recovery systems
06/1986
06/24/1986US4596698 Extractor for removing hydrogen sulfide from steam
03/1986
03/18/1986US4576006 Geothermal hot water transportation and utilization system
01/1986
01/22/1986EP0168494A1 Utilization of thermal energy.
01/03/1986WO1986000124A1 Improvements in earth heat recovery systems
12/1985
12/17/1985US4558568 Method and apparatus for mobilizing geothermal fluid
09/1985
09/24/1985US4542625 Geothermal power plant and method for operating the same
08/1985
08/13/1985US4534174 Geothermal reboiler apparatus and method
08/06/1985CA1191406A1 Method for sub-terranean generation for heat as a source of energy
08/01/1985WO1985003328A1 Utilization of thermal energy
07/1985
07/16/1985US4528817 Purifying geothermal steam
04/1985
04/23/1985US4512156 Geothermal energy conversion system
04/23/1985US4512155 Flowing geothermal wells and heat recovery systems
04/02/1985US4507925 Method for and thermal energy injection withdrawal system for aquifers
03/1985
03/05/1985US4502285 Silica stabilization and reinjection for geothermal method and apparatus
01/1985
01/08/1985US4492083 Geothermal salinity control system
01/01/1985US4491367 Method for subterranean generation of heat as a source of energy
10/1984
10/30/1984US4479351 Venturi flash circulator for geothermal apparatus
09/1984
09/19/1984EP0118788A2 Method of and device for utilizing geothermal energy
09/04/1984US4468929 Condensed with ferric chelate in a redox system
05/1984
05/15/1984US4448022 Downhole liquid trap for a geothermal pumping system
04/1984
04/24/1984CA1166242A1 Geothermal heat transfer
02/1984
02/15/1984EP0052095B1 A power plant
02/07/1984US4429535 Silica precipitation seeding
01/1984
01/31/1984US4428200 Geothermal plant fluid reinjection system
01/24/1984US4426849 For recovery of thermal energy from a hot source of fluid
12/1983
12/20/1983US4420938 Inhibiting deposits of silica or calcite
11/1983
11/15/1983US4414817 Oxidation of hydrogen sulfide with a ferric chelate to form sulfur
10/1983
10/04/1983US4407366 Method for gas capping of idle geothermal steam wells
10/04/1983US4407127 Flashing apparatus of geothermal power plants
10/04/1983US4407126 Thermosyphon boiler for a geothermal pumping system
06/1983
06/21/1983US4388807 Geothermal power extraction system with above surface heating of working fluid
04/1983
04/26/1983US4380903 Enthalpy restoration in geothermal energy processing system
03/1983
03/22/1983US4377073 Methods for converting heat into mechanical energy and/or useful heat
03/09/1983EP0073576A1 Method for the sub-terranean generation of heat
03/01/1983US4375153 Process and apparatus for control of two-phase flow to geothermal power plants
02/1983
02/01/1983US4370858 Apparatus and method for energy production and mineral recovery from geothermal and geopressured fluids
12/1982
12/21/1982US4364232 Flowing geothermal wells and heat recovery systems
11/1982
11/09/1982US4357802 Injection of a hydrocarbon, heat exchanging
11/09/1982US4357801 Adding aqueous alkaline solution to a vapor stream to form carbonates; condensing and heat exchanging
10/1982
10/26/1982US4356401 Thermo-electric power station supplied by geothermal heat source
10/06/1982EP0061909A1 Geothermal heat transfer
08/1982
08/31/1982US4346560 Multi-stage flash degaser
08/24/1982US4345652 Leaching with sodium or potassium hydroxide solution, injection and circulation of saline solution
08/03/1982US4342197 Geothermal pump down-hole energy regeneration system
08/03/1982US4342196 Method and apparatus for generating power and irrigating plants with solar energy and earth heat
07/1982
07/27/1982US4341077 Process and system for recovery of energy from geothermal brines and other hot water sources
05/1982
05/26/1982EP0052095A1 A power plant.
05/11/1982US4328673 Geothermal pump dual cycle system
04/1982
04/20/1982US4325681 Geothermal irrigation pump
04/13/1982US4324102 Process and system for recovery of energy from geothermal brines and other hot water sources
03/1982
03/10/1982EP0047087A1 Geothermal energy extraction apparatus
02/1982
02/16/1982US4315402 Heat transfer process and system
11/1981
11/26/1981WO1981003360A1 Arrangement in or relating to a power plant
11/03/1981US4297847 Conversion of geothermal energy from subterranean cavities
09/1981
09/30/1981EP0036592A1 System comprising a geothermal boiler and a steam turbine operating with CO2 vapour in a closed cycle
09/22/1981US4290266 Electrical power generating system
07/1981
07/21/1981US4279125 Process and system for recovery of energy from geothermal brines and other hot water containing sources
07/07/1981US4276748 Recovery of energy from geothermal brine and other hot water sources
06/1981
06/16/1981US4272961 Recovery of energy from geothermal brine and other aqueous sources
06/16/1981US4272960 Process and system for recovery of working fluid for direct contact heat exchange
06/16/1981CA1103308A1 Power source for subsea oil wells
03/1981
03/17/1981US4255933 Geothermal power producing loop
01/1981
01/13/1981US4244190 Oxidation of hydrogen sulfide to prevent metal sulfide deposit and produce useful steam power
01/07/1981EP0021302A1 Thermal-power plant fed by a geothermal heat source
10/1980
10/21/1980US4228657 Regenerative screw expander
07/1980
07/22/1980US4213302 Process and system for recovery of energy from geothermal brines and other water containing sources
07/22/1980CA1081973A1 Power generating system employing geothermally heated fluid
05/1980
05/13/1980US4202177 Energy production for complex geothermal waters
05/06/1980US4201060 Geothermal power plant
03/1980
03/04/1980CA1072751A1 Power producing system employing geothermally heated fluid
02/1980
02/26/1980US4189923 Geothermal energy recovery
01/1980
01/01/1980US4181468 Geothermal energy pump monitor and telemetric system
09/1979
09/11/1979US4167099 Countercurrent direct contact heat exchange process and system
08/1979
08/23/1979WO1979000589A1 Process and system for recovery of working fluid for direct contact heat exchange
08/23/1979WO1979000565A1 Countercurrent direct contact heat exchange process and system
05/1979
05/08/1979US4152898 Energy transfer apparatus and method using geothermal brine
04/1979
04/17/1979US4149385 Well stimulation and systems for recovering geothermal heat
03/1979
03/20/1979US4144715 Method of producing mechanical energy from geothermal fluids
02/1979
02/27/1979US4142108 Geothermal energy conversion system
02/06/1979US4137720 Use of calcium halide-water as a heat extraction medium for energy recovery from hot rock systems
02/06/1979US4137719 Ketone and water
01/1979
01/02/1979US4132269 Generation of electricity during the injection of a dense fluid into a subterranean formation
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