Patents
Patents for F24F 12 - Use of energy recovery systems in air conditioning, ventilation or screening (4,852)
05/1989
05/02/1989US4825936 Rotary heat regenerator
05/02/1989CA1253385A1 Bay window with ventilator
04/1989
04/26/1989CN1032522A Warming-air cooling apparatus for the cabin of transportation
04/20/1989WO1989003317A1 Heater/air-cooler for cabin of transport means
04/04/1989US4817708 Ventilating unit for drawing and exhausting air
03/1989
03/28/1989US4815522 For changing the temperature of air
03/14/1989CA1251014A1 Method for heat and mass exchange operations
02/1989
02/21/1989CA1250179A1 Ventilation system
02/16/1989DE3726493A1 Method and device for limiting the room temperature in the case of drive machines which are arranged in closed rooms and develop waste heat
01/1989
01/31/1989CA1249477A1 Multimode ventilator
01/24/1989US4799539 For extracting stale air from inside a roomT?????h)??????????0*0*0*0?0????T
01/17/1989CA1248808A1 Air ventilation and filtration apparatus
01/17/1989CA1248807A1 Air conditioner system for building
01/03/1989US4794980 Air to air heat exchanger
01/02/1989EP0235208A4 Air conditioning means and method.
12/1988
12/28/1988CA1247450A Ventilator unit
12/20/1988US4792091 Method and apparatus for heating a large building
12/14/1988EP0294730A2 Ventilation device
11/1988
11/17/1988WO1988008944A1 Ventilation means and ventilation procedure
11/08/1988US4782888 Community thermal energy exchange system
11/01/1988US4781240 Energy exchange method and apparatus
10/1988
10/20/1988DE3711301A1 Device for ventilation of a room
09/1988
09/20/1988US4771611 Air conditioning means and method
09/07/1988WO1988006702A1 A ventilation and heat recovering system for plural room buildings
08/1988
08/18/1988DE3703754A1 Method and device for heat recovery from ventilation of preferably large rooms, factory workshops and the like
08/02/1988USRE32722 Ventilation system with thermal energy recovery
07/1988
07/28/1988DE3700944A1 Device for supplying air to a building interior
07/27/1988EP0275758A1 Independent unit for heat exchange between a primary and a secondary fluid, particularly of the air for the ventilation and conditioning of a room
07/14/1988DE3644807A1 Method of treating the waste air from a continuous purification system, and system for carrying out the method
06/1988
06/30/1988WO1988004757A1 Independent unit for heat exchange between a primary fluid and a secondary fluid, particularly air for ventilation and air conditioning of a room
06/30/1988WO1988004756A1 Turbomachine for propelling two media with heat transfer between the latter
06/30/1988DE3643496A1 Stroemungsmaschine zum foerdern von zwei medien mit waermeuebertragung zwischen den medien Stroemungsmaschine for conveying two media with waermeuebertragung between the media
06/09/1988DE3640347A1 Countercurrent heat exchanger
05/1988
05/31/1988US4747273 Heating and cooling system
05/17/1988US4744409 Valve assembly for air treatment apparatus
05/10/1988US4742957 Heat recovery ventilator
05/04/1988CN87105889A Heat interchange type ventilation equipment
05/03/1988US4741391 Method and apparatus for recovering of transmitted heat
05/03/1988US4741390 Method and apparatus for heating, ventilating and exhaust air purifying of industrial buildings
04/1988
04/26/1988US4739624 Multi-zone thermal energy storage variable air volume hydronic heat pump system
04/05/1988US4735061 Energy-saving system for an engine-driving air conditioning system
03/1988
03/15/1988US4730461 Multi-zone cold storage variable air volume air conditioning system
01/1988
01/12/1988US4718248 Four element refrigeration heat pump and geothermal control systems
01/12/1988US4718130 Interdome enclosure system for a heated swimming pool
12/1987
12/22/1987US4713943 Evaporative cooler including an air-to-air counter-flow heat exchanger having a reverse temperature profile
12/08/1987US4711293 Ventilator of the heat exchange type
11/1987
11/24/1987US4708197 Air to air heat exchanger
11/04/1987EP0164393B1 Wind guard device
10/1987
10/29/1987DE3613942A1 Deaeration and aeration installation with a heat accumulator
10/21/1987EP0241461A1 A ventilated floor.
10/08/1987DE3611434A1 Method and apparatus for the optimum heating, ventilation and exhaust-air cleaning of industrial halls
09/1987
09/22/1987CA1227035A1 Air-conditioner
09/16/1987EP0236704A2 Method of and device for recovering heat losses
09/09/1987EP0235208A1 Air conditioning means and method
09/08/1987US4691763 Ventilator including a double pass countercurrent heat exchanger
08/1987
08/25/1987US4688626 Ventilator unit
08/25/1987US4688473 Wind guard device
08/06/1987DE3602120A1 Control flap for a combined supply- and exhaust-air apparatus
08/05/1987EP0230419A1 A method of ventilation.
07/1987
07/07/1987US4678025 Heating/cooling/ventilation unit
06/1987
06/24/1987EP0225896A1 Method and device for optimum heating, ventilation and exhaust air decontamination in industrial locals
05/1987
05/27/1987EP0222963A1 Method of and means for the waste heat recovery
05/21/1987DE3540709A1 Heat recovery from outgoing stall air for incoming stall air
05/19/1987US4665805 Apparatus for counterflow air to air generative heat exchange and ventilating a room space
05/06/1987EP0220310A1 Heat exchanger
05/06/1987CN85107839A Method and device for controlling air condition in hothouse
04/1987
04/29/1987CN86106807A Air conditioning means and method
04/28/1987US4661133 Method for heat and mass exchange operations
04/23/1987DE3634828A1 Changeable storage apparatus
04/16/1987DE3536769A1 Method and device for utilising exhaust heat from exhaust air extracted from rooms to be heated
04/07/1987US4655278 Heat recirculation apparatus and method
03/1987
03/31/1987US4653574 Air to air heat exchanger
03/12/1987WO1987001436A1 Air conditioning means and method
03/03/1987US4646817 Air to air heat exchanger
03/03/1987US4646813 Multimode ventilator
03/03/1987CA1218556A1 Ventilation system for building
02/1987
02/17/1987US4643246 Bay window with ventilator
12/1986
12/04/1986WO1986007129A1 Method and device for optimum heating, ventilation and exhaust air decontamination in industrial locals
12/02/1986US4625628 Combined wall and ventilator module for a building
11/1986
11/06/1986WO1986006461A1 Heat exchanger
10/1986
10/21/1986US4617805 Air conditioner system for building
10/15/1986EP0128188B1 Ventilation plant
10/14/1986US4616696 Exhaust air heat exchanger
10/01/1986EP0196175A2 Thermally efficient room ventilator
09/1986
09/16/1986US4611653 Ventilation system
06/1986
06/24/1986US4596284 Regenerative heat recapturing device
06/18/1986EP0184887A1 Ventilation unit for buildings, especially for draught-free dwellings
06/17/1986US4594855 Process and apparatus for ventilation with heat exchange
06/03/1986CA1205458A1 Apparatus for recovering heat and ventilating a room space
05/1986
05/27/1986US4590990 For use in a livestock building
05/20/1986US4589476 Air ventilation and filtration apparatus
05/09/1986WO1986002684A1 A ventilated floor
05/09/1986WO1986002683A1 A method of ventilation
04/1986
04/16/1986EP0177657A1 System for the covering of the power requirements of a room
04/10/1986WO1986002145A1 System for meeting the energy requirements of a room
04/01/1986US4579163 Heat exchanger core and air flow control
03/1986
03/12/1986EP0034146B1 Method and arrangement for heat conditioning of buildings
02/1986
02/25/1986US4572429 Method and means for conserving energy requirements and improving working conditions of a sock finishing factory
02/25/1986US4572282 Ventilation system for building
02/18/1986US4570449 Refrigeration system
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