| Patents for F24J 3 - Other production or use of heat, not derived from combustion (4,775) |
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| 08/26/2004 | DE19516644B4 Anlage zum Austausch von Energie zwischen Erdreich und einem Energietauscher System for the exchange of energy between soil and an energy exchanger |
| 08/25/2004 | CN2636159Y 单井式集热设备 Single well-type collector equipment |
| 08/25/2004 | CN2636158Y 采暖设备 Heating equipment |
| 08/25/2004 | CN2636136Y 自然冷却环保型空调机 Natural cooling environmentally friendly air conditioners |
| 08/19/2004 | WO2004070290A1 Device and method for conversion of mechanical energy into thermal energy |
| 08/18/2004 | CN1521462A Bidirectional accumulation type earth energy refrigeration and warm central air conditioner device |
| 08/11/2004 | CN2632591Y Buffer water pool for configurating water source hot pump |
| 08/11/2004 | CN2632588Y Vertical soil heat exchanger with double circuit |
| 08/11/2004 | CN2632587Y Geothermal hydrothermal gradient utilizing heating systems |
| 08/11/2004 | CN2632553Y Natural thermostatic energy-saving cold-hot air-conditioner |
| 08/11/2004 | CN1161568C Geothermal liquid type air conditioner |
| 08/10/2004 | US6772605 Liquid air conditioner of ground energy type |
| 08/04/2004 | CN1160536C Central air conditioning system at terminal of geothermal heat pump radiation |
| 07/29/2004 | US20040144115 Geothermal heat accumulator and air-conditioning using it |
| 07/28/2004 | CN2628966Y Underground water cooling refrigerator |
| 07/28/2004 | CN1516330A Microheat power-generating device |
| 07/21/2004 | CN1514189A Multifunctional remote control fast and high efficiency cold heat exchanger |
| 07/21/2004 | CN1514188A Fluid power type sound energy heating device |
| 07/15/2004 | DE20320244U1 Bulb-shaped heat exchanger, in earth's crust is produced by a geotechnical process comprising compaction and displacement of earth over an end section of the borehole |
| 07/15/2004 | DE20303484U1 Vorrichtung zur Nutzung von Erdwärme Apparatus for utilizing geothermal |
| 07/14/2004 | CN1512655A Micro generator using waste heat |
| 07/14/2004 | CN1512124A Heat supply method and its device using direct combustor as water source heat pump |
| 07/08/2004 | DE202004006553U1 Engine or motor on construction equipment has a plastic cover with clearance allowing cooling air to flow. |
| 07/07/2004 | CN2624131Y Heat-exchange arrangement using underground energy source |
| 07/07/2004 | CN2624130Y 地热弹簧 Geothermal springs |
| 06/30/2004 | CN2622633Y Integrated union pipe |
| 06/24/2004 | WO2004053402A1 Liquid heating generator |
| 06/17/2004 | WO2004051154A1 Apparatus for heating fluids |
| 06/17/2004 | US20040114916 Space heating system |
| 06/03/2004 | US20040103856 Apparatus for heating fluids |
| 06/03/2004 | US20040103855 Apparatus for heating fluids |
| 06/03/2004 | DE20219208U1 Combined heat and power system for buildings uses fluid in two containers with different pressure and moves mass out of its normal position |
| 05/26/2004 | CN1151351C Hydrodynamic heater |
| 05/19/2004 | DE10249503A1 Process for energy conversion especially of thermal into electrical energy, has emitter and receiver reversibly coupled to give one hundred per cent efficiency |
| 05/19/2004 | CN1498330A Space heating system |
| 05/19/2004 | CN1496869A 加热装置 Heating device |
| 05/13/2004 | WO2003089161B1 Protective sleeve for threaded connections for expandable liner hanger |
| 05/12/2004 | CN2615552Y Geothermal utilizating air conditioner |
| 05/06/2004 | EP1415068A1 Molecular kinetic energy conversion device |
| 04/29/2004 | DE10249481A1 Procedure for winning of geothermal energy entails driving drift or tunnel deep into earth's interior to tap geothermal energy, with working medium introduced into earth's interior by at least one pump and pipeline |
| 04/28/2004 | CN1492200A Geothermal air conditioner system capable of providing hot water |
| 04/21/2004 | EP1411307A1 Heating device |
| 04/21/2004 | EP1409870A1 Geothermal power generation |
| 04/21/2004 | CN2612906Y Sewage remaining heat recovery heat pump installation for petroleum production factory multi-purpose station |
| 04/21/2004 | CN1491338A Method for transforming energy and vortex tube for carrying out said method |
| 04/21/2004 | CN1490578A Ground water hot pump set with cooling and heating switch controlled by media circulation |
| 04/21/2004 | CN1490577A Central air conditioner system with geothermal heat exchange |
| 04/15/2004 | DE19915842B4 Magnetisches Heizgerät A magnetic heater |
| 04/15/2004 | DE19836708B4 Verfahren zur Erzeugung von Temperaturdifferenzen in Gasen mittels Potentialfelder A method for generating temperature differences in gases by means of potential fields |
| 04/14/2004 | EP1327111B1 Method and system for exchanging earth energy between earthly bodies and an energy exchanger, especially to produce an electric current |
| 04/14/2004 | CN2611831Y Energy saving air conditioner utilizing underground water temp and coal (gas) stove |
| 04/14/2004 | CN2611819Y Solar steam air conditioner |
| 04/14/2004 | CN1145766C Device to generate heat by spraying liquid at high speed and high pressure |
| 04/01/2004 | DE10200106A1 Earth collector has infiltration plant located above horizontally extending pipe system and connected to rain water drainage system and with control and distribution well (8) and control and flushing well |
| 03/31/2004 | CN2608911Y Natural energy converter |
| 03/30/2004 | US6711905 Acoustically isolated heat exchanger for thermoacoustic engine |
| 03/24/2004 | CN2607534Y Health care air-conditioner |
| 03/23/2004 | US6710281 Laser based heat exchanger |
| 03/17/2004 | CN2606869Y Producing, filling and energy taking device for single well |
| 03/17/2004 | CN2606868Y Producing and recharging system for geothermal hot water |
| 03/17/2004 | CN2606867Y Deep stratum energy storage and utilizing system |
| 03/17/2004 | CN1482423A Direct heat exchange type liquid state cold and heat source apparatus |
| 03/17/2004 | CN1482302A Road level including split gravity geothermal pipes |
| 03/11/2004 | WO2004020916A1 A vacuum terrestrial heat-extracting device and an air-conditioning system with the device |
| 03/11/2004 | US20040045700 Heating and cooling apparatus, building structure having heating and cooling apparatus, and method of using heating and cooling apparatus |
| 03/10/2004 | EP1396690A1 Method for transforming energy and vortex tube for carrying out said method |
| 03/10/2004 | CN2606288Y Multifunctional earth temperature air conditioner |
| 03/10/2004 | CN2606287Y Air conditioner by earth temperature |
| 03/03/2004 | EP1147348B1 Soil heat exchanger and a method for achieving such a heat exchanger |
| 03/03/2004 | CN1479060A Vacuum well hole type sublerraneam heat extraction device |
| 03/02/2004 | CA2331286C Heat generator for vehicle |
| 02/26/2004 | WO2003089161A3 Protective sleeve for threaded connections for expandable liner hanger |
| 02/26/2004 | US20040035552 Well water type liquid cooling and heating resource system |
| 02/26/2004 | US20040035131 Radiant heat pump device and method |
| 02/26/2004 | US20040035110 Method and system for exchanging earth energy between earthly bodies and an energy exchanger, especially to produce an electric current |
| 02/25/2004 | CN1139758C Continuously working geothermal liquid-state air conditioning system |
| 02/11/2004 | EP1388717A1 Geothermal heat accumulator and air-conditioning using it |
| 02/11/2004 | CN1474112A Globe comprehensive protection system design-1 |
| 02/04/2004 | EP1387130A1 Fixing element for pipe segments of a geothermal heat probe |
| 02/04/2004 | CN2602324Y Down-hole heat transfer and energy-gain device |
| 02/04/2004 | CN2602323Y Geothermal resource step develop and cyclic utilization system |
| 02/04/2004 | CN2602322Y Multiple heating source linkage operation air-conditioning system |
| 02/04/2004 | CN2602321Y Agricultural production system utilizing the complex function of geothermal energy |
| 02/04/2004 | CN2602316Y Solar energy and geothermal energy complementary type accumulation of energy apparatus |
| 02/04/2004 | CN1137352C Vertical geothermal energy-storage air conditioner system |
| 02/03/2004 | US6684822 Tankless hot water heater |
| 01/29/2004 | WO2003100327B1 Radiant heat pump device and method |
| 01/21/2004 | CN1469983A Method and system for exchanging earth energy between earthly bodies an energy exchanger, especially to produce an electric current |
| 01/07/2004 | CN1466644A Structure utilizing geothermal energy |
| 01/07/2004 | CN1465972A Experiment method and device for measuring pyroconductivity of crust |
| 01/07/2004 | CN1465940A Ground temp. used temp.-adjusting purifier system |
| 01/07/2004 | CN1133854C Method and apparatus for generating pollution-free thermal energy by utilizing static electricity |
| 01/01/2004 | US20040000159 Liquid air conditioner of ground energy type |
| 12/31/2003 | CN2596281Y 流体动力加热器 Fluid Power Heater |
| 12/30/2003 | US6668554 Geothermal energy production with supercritical fluids |
| 12/17/2003 | EP1370812A2 Heating apparatus |
| 12/17/2003 | CN1131399C Solar energy heat pump with integrated heat collector, heat accumulator and evaporator |
| 12/10/2003 | CN2591528Y Phase change heat storage geothermal warming device |
| 12/10/2003 | CN2591527Y Underground soil cold source air conditioner |
| 12/10/2003 | CN1130527C Torsion generator |