Patents
Patents for F24F 12 - Use of energy recovery systems in air conditioning, ventilation or screening (4,852)
02/1999
02/03/1999CN2306438Y Cooling heat exchange sanitation water heater for lithium bromide central air-conditioner
02/03/1999CN1206811A Ice-storage air conditioning system
01/1999
01/27/1999CN2305595Y 恒温换气机 Thermostatic ventilators
01/21/1999WO1999002922A1 Integrated heat recovery ventilator-hepa filter
01/21/1999CA2295835A1 Integrated heat recovery ventilator-hepa filter
01/20/1999EP0892225A2 Air conditioning apparatus and its components
01/13/1999EP0890802A2 Exhaust and ventilation device with regenerative heat recovery
01/12/1999US5858768 Passing effluent through bed of inert mineral granular material including biomass of autotrophic bacteria which aerobically degrade organic pollutants, sprinkling bed with aqueous liquid, recovering purified and deodorized gas
01/06/1999CN2303205Y Cold/hot water machine of lithium bromide absorption type
01/05/1999US5855320 Combined furnace and heat recovery system
12/1998
12/30/1998EP0886746A1 Ventilation device and window for accommodating the same
12/30/1998EP0886745A1 Air conditioning and/or heating method and device with a high energy efficiency ratio for multiple-unit buildings
12/10/1998WO1998019763A3 Regenerator heat exchanger having one or more adjustable performance characteristics
11/1998
11/18/1998EP0877909A1 Regenerative heat recovery unit comprising heat accumulators tiltably movable to have a valve function
11/18/1998CN2297662Y Energy-saving domestic air conditioner with water heater
11/18/1998CN2297661Y Electronic water-cooling air conditioner
11/05/1998WO1998049510A1 Air treatment device, installation, and method
11/05/1998DE19718625A1 Heat transfer component used in ventilation and air conditioning systems with heat recovery
11/03/1998US5829513 Moulded baffle heat exchanger
10/1998
10/15/1998DE19715506A1 Method and appliance for heating large areas
10/14/1998CN2294414Y Equipment for refrigerating and heat generating for air conditioner with storage of cold and heat
10/07/1998CN2293762Y 冰箱热水器 Refrigerator Water Heater
10/06/1998US5816315 System for conditioning an airstream
10/01/1998WO1998043024A1 Air conditioning system
10/01/1998WO1998043023A1 Method and arrangement for controlling indoor climate of a building
09/1998
09/24/1998DE19709145C1 Two part heat exchanger for electrical equipment housings
09/16/1998EP0864068A1 Device and method for treating and producing fresh air
09/16/1998EP0740762B1 Temperature control of ventilation air
09/15/1998US5806582 Method and arrangement for controlling heat transfer in ventilation Apparatus or air conditioning apparatus
09/09/1998CN1192803A Combined air exchange and air-conditioning unit
09/02/1998EP0861403A1 Plate-type crossflow air-to-air heat exchanger having dual pass cooling
08/1998
08/13/1998DE19705206A1 Building interior ventilation system for ventilation of energy saving, enclosed buildings
08/05/1998EP0856136A1 Ventilation system
07/1998
07/29/1998EP0855560A2 Ventilation device
07/22/1998CN1188214A System for using air-conditioner condensed water into cooling water
07/15/1998EP0852688A1 Device for optimising air management in a room
07/09/1998WO1998029697A1 Method for ventilating a room
07/07/1998US5775114 Refrigeration apparatus
07/02/1998DE19654704A1 Raumbelüftungsverfahren Ventilation method
06/1998
06/17/1998CN2284361Y Air heating appts.
06/10/1998EP0846923A2 Heat recovery device
06/09/1998US5761908 For a room within a building
05/1998
05/27/1998EP0843799A1 Combined air exchange and air-conditioning unit
05/27/1998CN2282661Y Heat-pipe energy-recovering air-conditioner
05/27/1998CN1182861A Counter flow type heat exchanger
05/20/1998DE19647345A1 Ventilation equipment for room in building
05/20/1998CN1182188A Heat exchanger and method of manufacturing heat exchanging member of heat exchanger
05/14/1998WO1998019763A2 Regenerator heat exchanger having one or more adjustable performance characteristics
05/14/1998DE19641318A1 Regenerativer Wärmetauscher Regenerative heat exchanger
05/13/1998CN1181802A Heating unit
05/06/1998CN2280870Y Convective air exchanger
04/1998
04/22/1998CN2279551Y Ventilation energy recoverer
04/16/1998WO1998015784A2 Regenerative heat exchanger
04/08/1998CN2278174Y Air circulation indoor temp.- adjusting and ventilation device
03/1998
03/25/1998CN2277050Y Thermal insulating air interchanger for room
03/18/1998EP0829692A2 Heat exchanger and method of manufacturing a heat exchanging member of a heat exchanger
03/11/1998EP0828131A2 Opposed flow heat exchanger
03/11/1998EP0828118A2 Ventilating device for the simultaneous aeration and de-aeration of spaces
03/03/1998US5722483 Air exchange apparatus and method
02/1998
02/19/1998WO1998006982A1 Air exchange apparatus and method
01/1998
01/15/1998WO1998001711A1 Air-conditioner
01/15/1998CA2260228A1 Air-conditioning installation
01/14/1998EP0817944A1 Heating unit
01/07/1998EP0816790A2 Heat transfer element,more paricularly for air conditioning plant with heat recovery
01/07/1998EP0816770A2 Pipe insert lining to build in wall openings
01/07/1998EP0816769A2 Air circulation operating apparatus for forced ventilation device
01/02/1998DE19625772A1 Room ventilator with regenerative heat recovery
12/1997
12/17/1997CN2270915Y Cold and hot bidirectional scavenger fan
12/17/1997CN2270914Y Cold or hot air dual-purpose inlet
12/03/1997CN1166590A Air conditioning hot wate rshower bath
11/1997
11/19/1997EP0807791A2 Ventilation system for the rooms of a building
11/13/1997DE19618154A1 Air-conditioning and ventilation system for rooms in low temperature house
10/1997
10/23/1997DE19614913A1 House-ventilation system with heat-recovery by heat-pump
10/15/1997EP0800641A1 Plate heat exchanger with wetting device
10/01/1997CN2263768Y Energy storage air conditioner
09/1997
09/25/1997WO1997035152A1 Ventilation device and window for accommodating the same
09/24/1997CN2263306Y Energy-saving heat exchanger for air interchanger
09/18/1997WO1997034112A1 Air conditioning and/or heating method and device with a high energy efficiency ratio for multiple-unit buildings
09/10/1997CN2262208Y High efficiency energy saving cold and hot water equipment
08/1997
08/26/1997US5660228 Modular air-to-air heat exchanger
08/07/1997WO1997028412A1 Regenerative heat recovery unit comprising heat accumulators tiltably movable to have a valve function
08/06/1997EP0787953A2 Air-conditioner with energy recovery
07/1997
07/23/1997EP0785399A2 Air-air heat exchanger
07/22/1997US5649428 Hybrid air-conditioning system with improved recovery evaporator and subcool condenser coils
07/16/1997EP0783655A1 Heating, cooling and ventilating system, and room atmosphere conditioning unit for such a system
07/02/1997CN2257367Y Full heat recovery air interchanger
06/1997
06/18/1997CN2256516Y Axial flow air exchanger
06/12/1997WO1997021059A1 Device and method for treating and producing fresh air
06/12/1997DE19545869A1 Heating system for multistorey building
06/11/1997CN2256078Y Pipes for separate refrigerating and air-conditioning apparatus
06/04/1997EP0777094A2 Heat exchanging element
06/04/1997CN2255585Y Water heater using air-conditioner as heat source
05/1997
05/30/1997CA2190793A1 Heat exchanging element
05/27/1997US5632334 For transferring heat between first and second airflows
05/04/1997CA2162098A1 Rotating energy recovery ventilator
05/01/1997WO1997015794A1 Method and arrangement for conveying heat from exhaust air into inlet air by a heat exchanger via which non-freezing heat transfer liquid is circulated
05/01/1997WO1997015793A1 Ventilation system
05/01/1997WO1997015790A1 Ventilation system
04/1997
04/30/1997DE19539811A1 Ventilation equipment with fan and heat-exchanger
04/23/1997CN2252955Y Domestic multi-room air conditioner
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