| 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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| 10/28/1993 | DE4223224C1 Method of providing mechanical movement from thermal energy e.g. for heating or cooling appts. - uses liquid flow to or from variable volume space receiving or supplying periodic heat energy to drive working element |
| 10/26/1993 | US5255519 Method and apparatus for increasing efficiency and productivity in a power generation cycle |
| 09/22/1993 | EP0560956A1 Oscillating piston motor and installation with an oscillating piston motor. |
| 08/19/1993 | WO1993016271A1 Steam power plant |
| 08/19/1993 | CA2117465A1 Steam power plant |
| 08/05/1993 | DE4243822A1 Power unit using low temp. heat energy - produces mechanical energy using control sequence based on Mollier diagram for carbon di:oxide |
| 07/29/1993 | DE4201975A1 Heat engine power source - provides mechanical work solely by extraction of heat from fluid |
| 07/20/1993 | US5228309 Portable self-contained power and cooling system |
| 07/13/1993 | CA1320055C Thermodynamic cyclic process |
| 06/24/1993 | DE4143118A1 Energy recovery method e.g. for conventional piped steam and water supply systems - requires small turbine to extract kinetic energy which is converted into electrical energy, and used directly or stored |
| 06/17/1993 | DE4140573A1 Thermal to mechanical energy conversion process - using e.g. liq. carbon di:oxide with waste heat recycling |
| 05/19/1993 | EP0541761A1 Power and propulsion system utilizing fluid |
| 05/13/1993 | WO1991007573A3 Heat conversion into mechanical work through absorption-desorption |
| 05/05/1993 | CN1020465C Working medium of gu thermodynamics circulation thermodynamic system |
| 04/15/1993 | WO1993007360A1 Oscillating piston motor and installation with an oscillating piston motor |
| 03/04/1993 | WO1993004325A1 Condensing system and operating method |
| 03/03/1993 | EP0309467B1 Thermodynamic cycle |
| 03/02/1993 | US5190453 Staged combustor |
| 02/18/1993 | DE4127135A1 Electrical energy generation process - uses explosion of inflammable material to drive turbine |
| 02/16/1993 | US5186013 Refrigerant power unit and method for refrigeration |
| 02/02/1993 | US5182913 Engine system using refrigerant fluid |
| 01/21/1993 | WO1993001397A1 Method and apparatus for improving the efficiency of a small-size power plant based on the orc process |
| 01/21/1993 | CA2113167A1 Method and apparatus for improving the efficiency of a small-size power plant based on the orc process |
| 01/19/1993 | CA1312782C Method and apparatus for cryogenic liquid expansion |
| 01/12/1993 | US5177952 Closed cycle power system |
| 12/10/1992 | WO1992021861A1 Energy supply system |
| 12/02/1992 | WO1992021862A1 Power and propulsion system utilizing fluid |
| 12/02/1992 | CA2088361A1 Power and propulsion system utilizing fluid |
| 11/25/1992 | EP0515124A1 Method and apparatus for the production of a hot fluid stream for energy recovery |
| 11/25/1992 | CN2122939U Power source unit |
| 11/24/1992 | CA2069274A1 Fluid production method and apparatus |
| 11/10/1992 | US5161377 Method and system for generating energy utilizing a bleve-reaction |
| 11/10/1992 | CA1309871C Direct fired power cycle |
| 11/05/1992 | DE4114612A1 Thermal energy recovery and conversion system for furnace - uses heat from combustion chamber and chimney to raise temp. of compressed air for turbogenerator drive |
| 10/28/1992 | CN1065702A Super expansion turbine set |
| 10/14/1992 | CN1065319A Method and apparatus for converting thermal energy into electric power |
| 09/30/1992 | EP0505758A2 Method and apparatus for converting thermal energy into electric power |
| 09/23/1992 | CN1064730A Improved clean power generation |
| 09/17/1992 | WO1992015775A1 Improved clean power generation |
| 09/09/1992 | EP0502157A1 Method for securing the lubrication of bearings in a hermetic high-speed machine. |
| 09/03/1992 | WO1992006281A3 Process and devices for the free mutual conversion of heat and work and for the approximate exchange of the temperatures of two heat carriers by heat transfer |
| 08/19/1992 | CN1063743A Ranking cycle power plant utilizing organic fluid and method for using same |
| 08/06/1992 | WO1992007170A3 Refrigerant power unit and method for refrigeration |
| 07/29/1992 | EP0496283A2 Process for evaporating liquid natural gas |
| 07/15/1992 | CN2110087U Outer burning engine |
| 07/07/1992 | CA1304669C System for cryogenic proceeding and storage of combustion productsof heat engines |
| 06/24/1992 | EP0446342A4 Power generation from lng |
| 06/17/1992 | EP0490811A1 Device and method for the production of energy |
| 06/16/1992 | US5121606 Thermodynamic cyclic process |
| 05/20/1992 | EP0485596A1 Method for converting thermal energy of a working medium into mechanical energy in a steam plant |
| 04/30/1992 | WO1992007170A2 Refrigerant power unit and method for refrigeration |
| 04/29/1992 | CN1060741A Method and apparatus for combinatively producing electric and machine energy |
| 04/23/1992 | DE4032755A1 Oxygen-hydrogen combustion driven air pump - with self-contained water electrolysis |
| 04/16/1992 | WO1992007392A1 Process and installation for the combined generation of electrical and mechanical energy |
| 04/16/1992 | WO1992006281A2 Process and devices for the free mutual conversion of heat and work and for the approximate exchange of the temperatures of two heat carriers by heat transfer |
| 04/16/1992 | CA2094129A1 Process and installation for the combined generation of electrical and mechanical energy |
| 03/27/1992 | WO1992005342A1 Method for securing the lubrication of bearings in a hermetic high-speed machine |
| 03/27/1992 | CA2069491A1 Method for securing the lubrication of bearings in a hermetic high-speed machine |
| 03/24/1992 | US5097895 Heat exchanger, system and method for using the same |
| 03/17/1992 | US5095708 Method and apparatus for converting thermal energy into electric power |
| 02/26/1992 | EP0472020A1 Method and apparatus for converting low temperature heat to electric power |
| 02/26/1992 | CN1059014A Method and apparatus for converting low temperature heat to electric power |
| 02/20/1992 | DE4025579A1 Process for recovery of energy - utilises its own energy, ambient temp. and temp. difference is inversely proportional to increased volume |
| 02/12/1992 | EP0470532A1 Process for gasifying liquid natural gas |
| 02/06/1992 | DE4119242A1 Rotary piston steam engine - has pump to return condensate to evaporator |
| 01/23/1992 | DE4022627A1 Liquid gas vapour engines and turbines - use natural heat sources for vaporisation of helium which is then cooled |
| 01/15/1992 | EP0465551A1 A process for converting thermal energy into mechanical energy |
| 01/09/1992 | DE4030332A1 Process and plant for energy recovery from blast furnace gas - comprises pressure recovery turbine with generator and by=pass with gas compressor, combustion chamber with fuel enrichment |
| 12/31/1991 | US5076837 Using oxygen for partial oxidation reactions, nitrogen to perform work |
| 12/12/1991 | WO1991019079A1 Internal combustion type steam engine |
| 12/04/1991 | EP0458917A1 Heat conversion into mechanical work through absorption-desorption |
| 11/20/1991 | CN2089073U Steam turbine set using low grade heat energy |
| 11/13/1991 | EP0456446A1 Heat engine utilizing a cycle having an isenthalpic pressure-increasing process |
| 10/22/1991 | US5058386 Power generation plant |
| 09/19/1991 | DE4008811A1 Refrigeration circuit with rotary piston compressor - has oil separator connected to compressor outlet |
| 09/18/1991 | EP0446342A1 Power generation from lng. |
| 08/20/1991 | US5040373 Condensing system and operating method |
| 08/20/1991 | US5040370 Integrated air separation/metallurgical process |
| 08/06/1991 | US5036672 Process and apparatus for air fractionation by rectification |
| 07/24/1991 | CN1013290B Working fluid for rankine cycle power plant |
| 07/09/1991 | US5029444 Method and apparatus for converting low temperature heat to electric power |
| 07/04/1991 | DE3943161A1 Liq. vapour engine and turbine - generates power using only liq. gas heated by solar radiation or geothermal water and then re-liquefied |
| 07/02/1991 | US5027601 Low boiling point medium recovery apparatus |
| 06/19/1991 | CN1052354A Working medium of gu thermodynamics circulation thermodynamic system |
| 06/06/1991 | DE3939779A1 Heat-energy conversion process - uses fluids with low boiling point as working medium |
| 05/30/1991 | WO1991007573A2 Heat conversion into mechanical work through absorption-desorption |
| 05/29/1991 | CN1012692B Methods and means for producing power and cooling in the mfr. of ammonia |
| 05/14/1991 | CA1284177C Power plant using co _as a working fluid |
| 05/07/1991 | CA1283784C Power cycle working with a mixture of substances |
| 04/18/1991 | WO1991005145A1 Power generation from lng |
| 04/16/1991 | US5007240 Hybrid Rankine cycle system |
| 04/04/1991 | DE3931582A1 Gas-turbine waste-heat utilisation - involves feeding turbine outlet air and cooled exhaust to waste-heat boiler |
| 03/27/1991 | CN1012194B Direct fired power cycle |
| 03/05/1991 | CA1280899C Power unit for converting heat to power |
| 02/26/1991 | US4995234 Power generation from LNG |
| 02/21/1991 | DE3926844A1 Hermetically sealed circuit for driving rotary piston motor - contg. heated mixt. of liquefied gas and lubricant oil |
| 01/31/1991 | DE4022632A1 Energy conversion system using rotary piston engine - d has arrangement for lowering temp. of working fluid |
| 01/30/1991 | CN1048910A Gravity flow heat engine system |
| 01/29/1991 | US4987742 Process for the generation of mechanical energy in the ammonia oxidation step of a nitric acid production process |
| 01/08/1991 | US4982568 Thermodynamic cycle |