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