| 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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| 01/19/2000 | EP0972922A2 Modified bottoming cycle for cooling inlet air to a gas turbine combined cycle plant |
| 01/05/2000 | EP0968356A1 Method and apparatus for converting thermal energy into work |
| 01/04/2000 | US6009711 Apparatus and method for producing power using geothermal fluid |
| 12/29/1999 | CN1240015A Method and system of converting thermal energy into useful form |
| 12/28/1999 | US6006538 Air conditioner energy system |
| 12/16/1999 | WO1999064741A1 Room temperature heat engine |
| 12/15/1999 | EP0828929A4 Reduced pollution power generation system and gas generator therefore |
| 12/08/1999 | CA2265312A1 Method for converting the energy of compressed gas into useful work and gas turbine (combined cycle) power plant for implementing the method |
| 11/25/1999 | WO1999060252A1 Engine for exhaust gas produced by explosion |
| 11/25/1999 | CA2296712A1 Engine for exhaust gas produced by explosion |
| 11/23/1999 | CA2159040C Ammonia absorption refrigeration cycle for combined cycle power plant |
| 10/27/1999 | EP0952316A2 Gas turbine inlet air cooling method for combined cycle power plants |
| 10/26/1999 | US5970702 Reduced pollution hydrocarbon combustion gas generator |
| 10/13/1999 | EP0949406A2 Method of heating gas turbine fuel in a combined cycle power plant using multi-component flow mixtures |
| 10/07/1999 | WO1999050537A1 Producing power from pressurized liquefied natural gas |
| 10/07/1999 | WO1999050536A1 Producing power from liquefied natural gas |
| 09/28/1999 | US5956937 Reduced pollution power generation system having multiple turbines and reheater |
| 09/23/1999 | DE19811800A1 Vorrichtung zur Umwandlung von Niedertemperaturwärme in elektrische Energie An apparatus for the conversion of low temperature heat into electric energy |
| 09/22/1999 | EP0943789A2 Apparatus to create electrical energy from low temperture heat |
| 09/21/1999 | US5953918 Method and apparatus of converting heat to useful energy |
| 09/21/1999 | US5953900 Method of generating rotating shaft power |
| 09/16/1999 | WO1999046545A1 Air conditioner energy system |
| 09/14/1999 | US5950433 Method and system of converting thermal energy into a useful form |
| 09/14/1999 | US5950418 Electrical power plant |
| 09/07/1999 | US5946916 Vapor forced engine |
| 09/07/1999 | US5946915 Multistage two-phase turbine |
| 09/02/1999 | DE19808119A1 Low temperature hydrogen combustion turbine |
| 08/12/1999 | WO1999030018A3 Multistep steam power operating method for generating electric power in a cycle and device for the implementation thereof |
| 08/12/1999 | DE19805119A1 Alternative energy technology process for reuse of shut-down nuclear or fuel-fired power station steam generators |
| 08/10/1999 | US5934076 Internal combustion engine |
| 08/05/1999 | DE19804845A1 Direct conversion process to convert thermal energy into mechanical energy |
| 08/04/1999 | EP0932748A1 Closed loop steam cooled steam turbine |
| 07/28/1999 | EP0931205A1 Method and system of converting thermal energy into a useful form |
| 07/20/1999 | US5924287 Domestic energy supply system |
| 07/07/1999 | EP0774062B1 A heat engine and heat pump |
| 06/29/1999 | US5916140 Hydraulic engine powered by introduction and removal of heat from a working fluid |
| 06/23/1999 | CN1220718A Power generating device employing hydrogen absorbing alloy and low heat |
| 06/17/1999 | WO1999030018A2 Multistep steam power operating method for generating electric power in a cycle and device for the implementation thereof |
| 06/17/1999 | CA2313109A1 Multi-stage steam-power/working process for the generation of electric energy in a cycle and arrangement for carrying it out |
| 06/08/1999 | US5910100 Process for extracting a first gas from a hot gaseous waste heat source |
| 05/27/1999 | WO1999025955A1 Heat engine with an improved degree of efficiency |
| 05/27/1999 | DE19750589A1 Thermal power machine |
| 05/20/1999 | WO1999024766A1 Systems and methods for converting thermal energy |
| 05/20/1999 | WO1999024698A1 Fast power regulating process for a steam generating power plant and steam generating power plant |
| 05/20/1999 | DE19749452A1 Verfahren zur schnellen Leistungsregelung einer Dampfkraftanlage sowie Dampfkraftanlage A method for fast power control for steam turbine and steam turbine |
| 05/12/1999 | CN1043390C Method and apparatus for combinatively producing electric and machine energy |
| 05/06/1999 | WO1999022189A1 Temperature difference heat engine |
| 05/06/1999 | WO1999022188A1 Temperature-difference heat engine using saturated vapour |
| 05/04/1999 | US5899072 Steam generator and steam turbine driving unit using gaseous hydrogen as fuel |
| 04/07/1999 | EP0907006A1 Power generating device employing hydrogen absorbing alloy and low heat |
| 03/10/1999 | EP0900921A2 Hydrogen burning turbine plant |
| 03/05/1999 | CA2245470A1 Hydrogen burning turbine plant |
| 03/04/1999 | DE19745832A1 Vapour medium for operating heat engines, especially turbines |
| 02/09/1999 | US5867978 System for generating hydrogen |
| 01/19/1999 | US5860279 Method and apparatus for cooling hot fluids |
| 01/19/1999 | CA2175168C Method and apparatus for implementing a thermodynamic cycle |
| 12/02/1998 | EP0880640A1 Cyclic-operation heat engine |
| 12/01/1998 | US5842345 Heat recovery and power generation from industrial process streams |
| 11/24/1998 | US5839282 Method and means for using a two phase fluid |
| 11/10/1998 | US5833446 Deriving mechanical power by expanding a liquid to its vapour |
| 11/05/1998 | WO1998049428A1 Retrofitting coal-fired power generation systems with hydrogen combustors |
| 11/05/1998 | DE19826219A1 Device to generate mechanical energy |
| 10/20/1998 | US5822990 Converting heat into useful energy using separate closed loops |
| 10/20/1998 | US5822937 Brick support |
| 10/15/1998 | DE19712325A1 Low level thermal energy conversion system |
| 09/22/1998 | US5809791 Remora II refrigeration process |
| 09/22/1998 | US5809768 Hydrogen-oxygen combustion turbine plant |
| 09/15/1998 | US5806316 For supplying working medium for a gas expansion engine |
| 09/08/1998 | US5802840 Process for the low-pollutant conversion of fossil fuels into mechanical power |
| 09/02/1998 | CN1192262A Effluent gas treatment |
| 09/01/1998 | CA2182121C Thermodynamic power generation system employing a three component working fluid |
| 08/26/1998 | EP0859940A1 Rotatable heat transfer apparatus |
| 08/19/1998 | EP0858552A1 Power generating system by use of fluid |
| 08/12/1998 | EP0683847B1 An improved liquefied natural gas fueled combined cycle power plant |
| 07/23/1998 | DE4480944C2 Hydrogen and oxygen combustion turbine plant |
| 07/21/1998 | US5782081 Transferring all of exhaust heat from topping gas turbine cycle to bottoming cycle to improve overall efficiency |
| 07/16/1998 | WO1998030786A1 Method and apparatus for converting thermal energy into work |
| 07/16/1998 | DE19700994A1 Direct steam generation plant for steam turbine |
| 07/08/1998 | CN1187235A Multistage two-phase turbine |
| 07/08/1998 | CN1186910A Gas solution adsorption geothermal power generation |
| 07/07/1998 | US5775091 Hydrogen fueled power plant |
| 06/11/1998 | WO1998025019A1 Method for generating energy by means of internal combustion engines and waste heat boilers located downstream |
| 06/11/1998 | WO1998025010A1 External combustion engine |
| 06/09/1998 | US5761896 High efficiency method to burn oxygen and hydrogen in a combined cycle power plant |
| 05/27/1998 | EP0843778A1 Hydrogen-fueled semi-closed steam turbine power plant |
| 05/26/1998 | US5755102 Method of and means for producing power using concentrated brine |
| 05/26/1998 | US5755089 Method and apparatus for operating a gas and steam turbine plant using hydrogen fuel |
| 05/19/1998 | US5754613 Power plant |
| 05/13/1998 | CN1181461A Negative temp. differential saturated steam engine |
| 05/06/1998 | EP0839278A1 Multistage two-phase turbine |
| 05/06/1998 | CN1180790A Negative temperature eifference thermal engine |
| 04/30/1998 | WO1998017897A1 Hydrogen fueled power plant |
| 04/30/1998 | CA2269322A1 Hydrogen fueled power plant |
| 04/22/1998 | EP0713561B1 Vapor force engine |
| 04/16/1998 | WO1998015721A1 Method and system of converting thermal energy into a useful form |
| 04/16/1998 | CA2266988A1 Method and system of converting thermal energy into a useful form |
| 03/26/1998 | WO1998012421A1 Closed loop steam cooled steam turbine |
| 03/26/1998 | CA2263665A1 Closed loop steam cooled steam turbine |
| 03/18/1998 | EP0828929A2 Reduced pollution power generation system and gas generator therefore |
| 03/12/1998 | WO1998010182A1 Gas turbine generator and method of power generation |