| Patents for F01K 25 - Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for (4,827) |
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| 11/11/1980 | US4232525 2,2,3,3-tetrafluoropropanol and water form an azeotropic- like composition |
| 10/21/1980 | US4228657 Regenerative screw expander |
| 10/14/1980 | US4227866 Solar energy device |
| 10/14/1980 | US4227373 Waste heat recovery cycle for producing power and fresh water |
| 09/30/1980 | US4224799 Gas-operated motor systems |
| 09/30/1980 | US4224796 Method for converting heat energy to mechanical energy with 1,2-dichloro-1,1-difluoroethane |
| 09/30/1980 | US4224795 Method for converting heat energy to mechanical energy with monochlorotetrafluoroethane |
| 09/18/1980 | WO1980001932A1 Process for generating electric power by means of a turbogenerator using high pressure vapour |
| 08/20/1980 | EP0014630A1 Thermodynamic engine and its use as a motor or as a refrigerating machine |
| 08/07/1980 | WO1980001593A1 Apparatus for and methods of generating electrical power |
| 08/05/1980 | CA1082934A1 Thermodynamic installation |
| 07/22/1980 | US4214170 Power generation-refrigeration system |
| 07/22/1980 | CA1081974A1 Plant and process for recovering waste heat |
| 07/08/1980 | US4211932 Power recovery system |
| 07/01/1980 | US4209992 Power generating method and apparatus |
| 07/01/1980 | US4209982 Low temperature fluid energy conversion system |
| 06/11/1980 | EP0012006A2 Heat cycle system and method for producing fresh water from brine |
| 04/30/1980 | EP0010210A1 Power generation-refrigeration system and method of operating the same |
| 04/22/1980 | US4198827 Power cycles based upon cyclical hydriding and dehydriding of a material |
| 04/08/1980 | US4196594 Process for the recovery of mechanical work in a heat engine and engine for carrying out the process |
| 04/02/1980 | EP0009387A1 Process for obtaining energy during the regasification of liquefied gases |
| 04/01/1980 | US4195485 Distillation/absorption engine |
| 03/19/1980 | EP0008937A2 Gas powered motors and vehicles powered thereby |
| 03/19/1980 | EP0008929A1 Motors and gas supply apparatus therefor |
| 03/18/1980 | US4193267 Method and apparatus for generating power utilizing pressure-retarded osmosis |
| 03/04/1980 | US4191021 Small power plant utilizing waste heat |
| 03/04/1980 | CA1072751A1 Power producing system employing geothermally heated fluid |
| 02/06/1980 | EP0007850A1 Plant for recovering energy |
| 02/06/1980 | EP0007389A1 Power recovery system and method therefor |
| 01/29/1980 | US4185465 Multi-step regenerated organic fluid helical screw expander hermetic induction generator system |
| 01/22/1980 | US4184325 Plant and process for recovering waste heat |
| 01/22/1980 | US4184323 Method and apparatus for recovering energy possessed by exhaust gas from blast furnace by turbine |
| 01/15/1980 | US4183218 Thermal powered gas generator |
| 01/01/1980 | US4180983 Device for preventing leakages of working fluid from a heat engine |
| 12/18/1979 | US4178761 Heat source and heat sink pumping system and method |
| 12/18/1979 | US4178754 Throttleable turbine engine |
| 12/18/1979 | CA1068119A1 Process and equipment for transforming heat at a relatively low temperature into power or energy |
| 10/09/1979 | US4170116 Method and apparatus for converting thermal energy to mechanical energy |
| 09/18/1979 | US4167919 Method and apparatus for hydrogen fueled internal combustion engines |
| 09/04/1979 | US4166362 Methods of and thermodynamic apparatuses for power production |
| 09/04/1979 | US4166361 Components and arrangement thereof for Brayton-Rankine turbine |
| 08/28/1979 | US4165614 Self-contained vapor-power plant requiring a single moving-part |
| 08/23/1979 | WO1979000589A1 Process and system for recovery of working fluid for direct contact heat exchange |
| 08/08/1979 | EP0003264A1 Method and plant for generating power |
| 05/22/1979 | US4155865 Refrigeration process |
| 05/15/1979 | CA1054381A1 Power generating device |
| 05/02/1979 | EP0001732A1 Energy conversion process and device |
| 04/18/1979 | EP0001382A2 Methods and installations for producing utilisable energy and/or cold from heat |
| 04/17/1979 | US4149383 Internal vaporization engine |
| 04/10/1979 | US4148185 Double reheat hydrogen/oxygen combustion turbine system |
| 04/03/1979 | CA1051673A1 Apparatus for generating power using environmental temperature differentials |
| 03/20/1979 | CA1050777A1 Hydrogen-hydride absorption systems and methods for refrigeration and heat pump cycles |
| 01/02/1979 | US4132077 Process and apparatus for obtaining useful energy from a body of liquid at moderate temperature |
| 10/31/1978 | US4122756 Vapor engine |
| 10/10/1978 | US4118934 Process and apparatus for transforming heat at a relatively low temperature into power or energy |
| 09/19/1978 | CA1038632A1 Vapor generator |
| 09/05/1978 | US4110984 Rotary piston engine using electric heating to flash motive fluid |
| 08/29/1978 | US4109468 Heat engine |
| 08/22/1978 | US4107928 Thermal energy method and machine |
| 08/22/1978 | CA1037065A1 Stabilization of trichlorodifluoro benzenes |
| 08/15/1978 | US4106294 Thermodynamic process and latent heat engine |
| 08/08/1978 | US4104883 Mass transport heat exchanger method and apparatus for use in ocean thermal energy exchange power plants |
| 07/25/1978 | US4102133 Multiple well dual fluid geothermal power cycle |
| 07/18/1978 | US4100744 Installation for the production of energy which utilizes a source of heat or natural thermic differences in level |
| 07/11/1978 | US4099489 Fuel regenerated non-polluting internal combustion engine |
| 06/20/1978 | US4095426 Turbine and method of using same |
| 06/06/1978 | US4092830 Gas driven motor with buffer space |
| 05/23/1978 | US4090362 External combustion power cycle and engine with combustion air preheating |
| 05/23/1978 | US4090361 Low-grade thermal energy source |
| 05/16/1978 | US4089175 Process and system for recovery of energy from geothermal brines and other water containing sources by direct contact with a working fluid below the critical pressure |
| 05/09/1978 | US4087976 Electric power plant using electrolytic cell-fuel cell combination |
| 05/02/1978 | US4086772 Method and apparatus for converting thermal energy to mechanical energy |
| 04/25/1978 | US4085590 Hydride compressor |
| 04/18/1978 | US4084408 Method of recovering energy by means of a cyclic thermodynamic process |
| 04/11/1978 | US4084038 Electrical power generation and storage system |
| 03/14/1978 | US4079263 Power producing system |
| 02/07/1978 | US4072006 Chemical reaction furnace system |
| 01/24/1978 | US4069672 Waste heat converter for an internal combustion engine |
| 01/24/1978 | US4069660 Chemical reaction furnace system |
| 01/17/1978 | US4068476 Solar driven power unit |
| 01/10/1978 | US4067189 Multicycle turbine engine |
| 12/20/1977 | US4063420 Repetitive closed Rankine Cycle working fluid as motive power for prime mover |
| 12/20/1977 | US4063418 Power producing system employing geothermally heated fluid |
| 11/01/1977 | US4055962 Hydrogen-hydride absorption systems and methods for refrigeration and heat pump cycles |
| 10/25/1977 | US4055054 Constant boiling mixtures of dichloromonofluoromethane and 1-chloro-2,2,2-trifluoroethane |
| 10/25/1977 | US4055049 Constant boiling mixtures of 1,2-difluoroethane and 1,1,2-trichloro-1,2,2-trifluoroethane |
| 10/18/1977 | US4054036 Constant boiling mixtures of 1,1,2-trichlorotrifluoroethane and cis-1,1,2,2-tetrafluorocyclobutane |
| 08/30/1977 | US4044819 Hydride heat pump |
| 08/16/1977 | US4041709 Thermal power plants and method of operating a thermal power plant |
| 08/16/1977 | US4041708 Method and apparatus for processing vaporous or gaseous fluids |
| 08/02/1977 | US4039023 Method and apparatus for heat transfer, using metal hydrides |
| 07/26/1977 | US4037415 Implosion rotary engine |
| 07/19/1977 | US4036028 Process and apparatus for evaporating and heating liquified natural gas |
| 07/05/1977 | US4033135 Plant and process for vaporizing and heating liquid natural gas |
| 06/21/1977 | US4030303 Waste heat regenerating system |
| 06/07/1977 | US4027993 Method and apparatus for compressing vaporous or gaseous fluids isothermally |
| 05/17/1977 | US4023366 Isothermal open cycle thermodynamic engine and method |
| 05/10/1977 | US4022030 Thermal cycle for the compression of a fluid by the expansion of another fluid |
| 03/01/1977 | US4010378 Integrated electric generating and space conditioning system |
| 03/01/1977 | US4009576 Regenerator for rotary Rankine cycle engines |