Patents
Sitemap › F24 - Heating; Ranges; Ventilating › F24F - Air-conditioning; Air-humidification; Ventilation; Use of air currents for screening › F24F 11 - Control or safety systems or apparatus
Patents for F24F 11 - Control or safety systems or apparatus (29,222)
12/1998
12/22/1998US5850969 Method for controlling temperature in a refrigerator when a temperature sensor operates abnormally
12/22/1998US5850968 Air conditioner with selected ranges of relative humidity and temperature
12/22/1998US5850742 Apparatus and method of controlling automatic door of air conditioner
12/17/1998WO1998057099A1 Method for operating a stove in a building, and a device for carrying out this method
12/16/1998EP0884116A2 Laboratory fume hood controller utilizing object detection
12/16/1998EP0645589B1 Operation control apparatus for air-conditioner
12/16/1998CN1201888A System for monitoring outdoor heat exchanger coil
12/16/1998CN1201887A System for monitoring expansion valve
12/16/1998CN1201886A Laboratory fume hood controller utilizing object detection
12/09/1998EP0883104A2 A turbulence-shield for a mcirophone in a wall-cavity
12/09/1998EP0883050A1 Self-configurating method and system for energy management of a locality
12/09/1998EP0883047A1 System for monitoring expansion valve
12/09/1998EP0882934A2 System for monitoring outdoor heat exchanger coil
12/09/1998EP0637368B1 Controlling ventilation rates and indoor air quality
12/09/1998CA2224425A1 Laboratory fume hood controller utilizing object detection
12/08/1998CA2147317C A control device of an air conditioner
12/03/1998WO1998041858A3 Fume extraction apparatus
12/02/1998EP0880661A2 Air handling unit including control system that prevents outside air from entering the unit through an exhaust air damper
12/02/1998CN1200463A Temp. control method for central air conditioner system by intermittent wind blowing control
12/02/1998CN1200462A Air conditoner temp. control apparatus
12/01/1998US5842502 Device for regulating the flow of fluid
11/1998
11/25/1998CN2298459Y Temp. control centralized control device in multiple blower chamber of central air conditioner
11/24/1998US5839654 Portable air comfort system thermostat enabling personal localized control of room temperature
11/19/1998DE19821504A1 Air moistening unit with compressed air atomiser and water supply
11/18/1998EP0878673A2 Air-climate control
11/18/1998CN2297660Y Dual-purpose cold or hot air conditioner heat protector
11/18/1998CN1199455A Controller of air conditioner
11/18/1998CN1199160A Air conditioner for combined use of cooler and heater and controlling method therefor
11/12/1998DE19719367A1 Ventilation arrangement for building
11/11/1998EP0877209A2 Ventilation device for a building
11/11/1998CN2296965Y Full-automatic humidifier
11/11/1998CN1198521A Perfume spraying driving apparatus for air conditioner and method thereof
11/11/1998CN1198520A Method for sensing object distance for air conditioner
11/11/1998CN1198519A Lourver position-sensing device in air conditioner and method for controlling the same
11/10/1998US5833531 Apparatus for controlling flow of discharged air in air conditioner, and method therefor
11/10/1998US5833529 For controlling gas flow in an exhaust duct
11/10/1998US5833134 Wireless remote temperature sensing thermostat with adjustable register
11/10/1998US5832735 Control system for multiple-type air conditioner
11/10/1998US5832733 Power controllable type air conditioner
11/05/1998WO1998049567A2 Analog spectrum display for environmental control
11/05/1998CA2286157A1 Analog spectrum display for environmental control
11/04/1998EP0628149B1 Control system for an air conditioning/refrigeration system
11/04/1998CN2296475Y Multifunctional air conditioner and refrigerator protector
11/03/1998US5829674 Zone system control
11/03/1998US5829264 Air conditioner having refrigerant pressure control means and driving control method therefor
11/03/1998US5829261 Driving arrangement for air refrigeration appliances
11/03/1998CA2125014C Direct digital control thermostat
10/1998
10/29/1998DE19716931A1 Control apparatus for room ventilation plant
10/28/1998CN2295951Y Wind volume regulating valve of flowing distributor
10/28/1998CN2295950Y Human body inducing air exchanging fan
10/27/1998US5826439 Method and circuit for on/off control of the compressor of a motor vehicle air conditioner
10/22/1998WO1998046959A1 Air-conditioning system and method of operating the same
10/22/1998DE19735674C1 Automatic ventilation arrangement for mounting on windows
10/21/1998EP0872693A2 Air Conditioner having refrigerant leakage alarming function based on the senses of human
10/21/1998CN2295153Y Adjustable venturi spray nozzle
10/21/1998CN1040358C 空调器 Air Conditioner
10/20/1998US5823006 Air conditioner and control apparatus thereof
10/20/1998US5823004 Outdoor fan control for part load efficiency
10/20/1998US5823002 Air conditioner and method therefor
10/15/1998DE19715506A1 Method and appliance for heating large areas
10/13/1998US5822227 Air-conditioning and ventilation simulator in subsurface space
10/13/1998US5819845 Temperature control method for a heating/cooling system
10/07/1998CN1195091A Apparatus and method of controlling amount of refrigerant of multi-air conditioner
10/06/1998US5818347 Identification of HVAC systems in a communication network
10/06/1998US5816491 Method and apparatus for conserving peak load fuel consumption and for measuring and recording fuel consumption
10/06/1998US5816306 Shape memory alloy actuator
10/06/1998US5816061 Method and apparatus for controlling the temperature of the refrigerating chamber of a refrigerator
09/1998
09/29/1998US5815637 Humidifier for control of semi-conductor manufacturing environments
09/29/1998US5815078 Louver driving device for an air conditioner and method of controlling the louver driving device
09/29/1998US5813600 Method for operating a heating and/or air conditioning system
09/29/1998US5813599 Automated controller for naturally ventilated livestock and poultry buildings
09/24/1998WO1998041858A2 Fume extraction apparatus
09/24/1998DE19711063A1 Monitoring and controlling elements of air-conditioning technology
09/23/1998EP0866291A1 Compression heat pump or compression cooling machine and control method therefor
09/23/1998EP0866285A2 Ventilation system
09/23/1998EP0866284A2 Air conditioning system and power converter apparatus for the same
09/23/1998EP0866283A2 Device for monitoring and controlling climatisation elements
09/23/1998CN1193715A Air conditioning system and power converter apparatus for the same
09/22/1998US5810661 Method and apparatus for controlling the orientation of adjustable air flow direction blades of an air conditioner
09/22/1998US5810660 Operational control apparatus for an air conditioner and control method therefor
09/22/1998US5810657 Controller to maintain a certain set of environmental parameters in an environment
09/22/1998US5810245 Of an hvac system
09/22/1998US5810244 Fan system
09/22/1998US5809795 Fuzzy logic liquid level control
09/22/1998US5809793 Timer circuit for heating or air conditioner unit
09/17/1998DE19709053A1 Car cabin ventilation control device
09/16/1998EP0864951A1 Switchgear cabinet with a central control system for monitoring and control of integrated and/or separate units
09/16/1998EP0864820A2 Method for adjusting an air circulation system
09/16/1998EP0864819A2 Fume hood exhaust terminal having an electrically driven linear actuator
09/16/1998EP0864070A1 Thermal storage system controller and method
09/16/1998EP0733001B1 Setting device for a ventilation flap
09/16/1998CN2291613Y 温度控制器 Temperature Controller
09/16/1998CN1193105A Device for testing property of outdoor unit of air-conditioner
09/16/1998CN1192948A Fume hood exhaust terminal having electrically driven linear actuator
09/15/1998US5807170 Methods and apparatus for opening and closing the air inlet and outlet of an air conditioner
09/15/1998US5806762 Airless atomizing nozzle and system for humidity control
09/15/1998US5806582 Method and arrangement for controlling heat transfer in ventilation Apparatus or air conditioning apparatus
09/09/1998EP0863371A1 Ventilating Unit
09/09/1998CN1192523A 空调机 Air conditioning
09/08/1998US5803804 Method and device for sensor-controlled demand-controlled ventilation
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