Patents for F23N 3 - Regulating air supply or draught (1,646)
12/2003
12/25/2003US20030234296 Heating system
12/24/2003CN1131960C Burner controller
12/24/2003CN1131956C Low nitrogen oxide burner and control method for exhausting gas recycle
12/18/2003US20030230633 Heating system
12/09/2003US6659026 Control system for reducing NOx emissions from a multiple-intertube pulverized-coal burner using true delivery pipe fuel flow measurement
11/2003
11/27/2003WO2003098123A2 Heating system
11/27/2003CA2525633A1 Heating system
11/11/2003US6644957 Damper control device
10/2003
10/30/2003WO2003090001A1 Heating system
10/30/2003CA2523491A1 Heating system
10/21/2003CA2280666C Combustion air shutoff system for a fuel-fired heating appliance
10/09/2003WO2003083370A1 Method and device for controlling injection of primary and secondary air in an incineration system
09/2003
09/18/2003US20030175646 Method for adjusting pre-mix burners to reduce NOx emissions
09/11/2003US20030170578 Damper control device
09/08/2003CA2421462A1 Two-stage wet waste gasifier and burner
08/2003
08/19/2003US6606968 Water heater unit
08/06/2003EP1333227A2 Method to adapt a heating device including a burner to its dedicated air-/exhaust system
07/2003
07/31/2003WO2003007468A9 Variable speed controller for air moving applications using an acinduction motor
07/30/2003EP1331445A2 Liquid fuel burner
07/24/2003WO2002092987A3 System and method for sensor control of the fuel-air ratio in a burner
07/17/2003US20030131804 Water heater unit
07/03/2003WO2003054446A2 Method and apparatus for improving the efficiency of a combustion device
06/2003
06/26/2003WO2003052328A1 A heating appliance
06/26/2003WO2003052327A1 A heating appliance
06/26/2003CA2453232A1 A heating appliance
06/26/2003CA2453226A1 A heating appliance
06/19/2003US20030110993 Method and apparatus for improving the efficiency of a combustion device
06/12/2003US20030108835 Damper control device
06/11/2003CN1423089A Combustion apparatus
04/2003
04/16/2003EP1301745A1 An improved gas burner
04/15/2003US6546897 Thermodynamically activated flue damper
04/10/2003US20030066290 Photothermal power generation device and method
04/08/2003US6543438 Furnace with dual use inducer motor
03/2003
03/25/2003US6536680 Combustor with non-combustion air introduction
03/04/2003US6527541 Regulating device for an air ratio-regulated burner
02/2003
02/27/2003DE29924386U1 Boiler system fueled by gas of oil uses frequency converter to supply air control fan provides clean, efficient combustion for central heating installation
02/13/2003US20030030408 Variable speed controller for air moving applications using an AC induction motor
01/2003
01/29/2003EP1082575B1 Regulating device for a gas burner
01/29/2003CN1393655A Single-burner combustion control system for boiler
01/23/2003WO2003007468A1 Variable speed controller for air moving applications using an acinduction motor
01/16/2003DE20216653U1 Solid fuel stove or oven has automatic slid fuel feed with central air suction pipe having mixture sensor
01/16/2003DE20114065U1 Regulated gas burner for water heater has butterfly valve in air blower duct connected to second valve in gas feed pipe
01/08/2003CN1389680A Air-gas regulating system of boiler
12/2002
12/05/2002DE10222770A1 Verfahren zur Anpassung eines brennerbeheizten Heizgerätes an ein Luft-Abgassystem A method for matching a burner-heated heating device to an air-waste gas system
12/03/2002CA2135675C System and method for reduced purge operation of a forced draft burner in a water heater
11/2002
11/27/2002EP1260766A2 Method for adapting a fired heater to the air/flue gas stack
11/21/2002WO2002092987A2 System and method for sensor control of the fuel-air ratio in a burner
11/21/2002CA2721197A1 System and method for sensor control of the fuel-air ratio in a burner
11/20/2002CN2521495Y Burner adapted for removing source of atmospheric pollution
10/2002
10/24/2002DE10119598A1 Device to mix gas and air for gas heater consists of swing valve in housing with gas feed channel, turned proportional with air flow volume
09/2002
09/26/2002DE10211929A1 Combustor mit Einführung von Nicht-Verbrennungsluft Combustor with the introduction of non-combustion air
09/19/2002US20020130191 Combustor with non-combustion air introduction
09/12/2002DE10109438A1 Heater as extra heater for vehicles has fuel pump and delivery device for heat carrier operationally coupled by control device which determines actual speed of delivery device to prevent overheating
09/12/2002DE10109412A1 Fluidfördereinrichtung Fluid conveyor
09/05/2002DE10159033A1 Controller for heat output from gas burner heating appliance, operates using the output from blower rotation speed sensor if an air pressure sensor fails
09/04/2002EP1236956A1 Pot type oil burner
08/2002
08/29/2002US20020119408 Fluid delivery device, particularly for delivery of combustion air to a heating burner of a motor vehicle
07/2002
07/18/2002DE10158225A1 Controlling boiler heated by fan-assisted burner involves specifying desired exhaust gas temperature depending on current operating state, varying fan speed to achieve temperature
06/2002
06/19/2002EP1215442A1 Apparatus and method for controlling actuators in furnaces
06/13/2002DE10061599A1 Device for controling combustion system actuator drives uses control signals to drive actuator drive(s) that can be fed only by control line to regulator, drive position only by return line
05/2002
05/28/2002CA2115855C Draft inducer air flow controller
04/2002
04/25/2002US20020048737 Regulating device for an air ratio-regulated burner
04/23/2002US6377426 Gas furnace with variable speed draft inducer
04/11/2002DE10048454A1 Regulator for fuel/air ratio for fan burner for heater has bypass opening whose cross-section can be varied depending on temperature arranged between suction side and pressure side
03/2002
03/27/2002CN2483617Y Gas mixing apparatus for gas baking oven
03/14/2002DE10113468A1 Burner control unit employs sensor for comparative measurement during control interval and produces alarm signal as function of difference
03/13/2002EP1186831A1 Apparatus controlling the air/fuel ratio of a burner
03/13/2002EP1186675A1 Apparatus for controlling introduced air in metal oxide reducing furnace
03/12/2002USRE37576 Single phase motor with positive torque parking positions
03/07/2002US20020027317 Apparatus for controlling introduced air in metal oxide reducing furnace
03/07/2002DE10040788A1 Vorrichtung und Verfahren zur Behandlung von Warenbahnen Device and method for the treatment of fabric webs
02/2002
02/27/2002EP1182413A1 Apparatus and process for treatment of material webs
02/13/2002CN1335465A Energy-saving purifier for burner
02/12/2002US6346789 Motor step-less speed control with active feedback of phase detector
01/2002
01/24/2002WO2002006728A1 An improved gas burner
01/24/2002CA2416069A1 An improved gas burner
01/16/2002EP1172609A1 Method of monitoring the rotational speed of a blower
01/10/2002DE10030630A1 Monitoring fan speed involves determining revolution rate measurement value and comparing with reference value to determine whether fan is in sufficiently stationary state
12/2001
12/13/2001US20010051321 Optimizing fuel combustion in a gas fired appliance
12/12/2001EP0864067B1 Gas flame treatment apparatus for pretreatment of surfaces of plastique material by increasing the surface energy at the surfaces to be coated
11/2001
11/27/2001CA2229128C Furnace with dual use inducer motor
11/22/2001US20010044084 Gas furnace with variable speed draft inducer
10/2001
10/31/2001DE10002995A1 Air regulation for fan burners with speed governors, involves regulating revolution rate of drive motor, to alter volumetric flow of combustion air, which is set according to demand
10/25/2001US20010032452 System and method for sensor control of the fuel-air ratio in a burner
09/2001
09/27/2001WO2001071255A1 Control device for a gas-fired appliance
09/27/2001DE10012485A1 Combustion air supply controller for fireplace, stove etc. regulates air inflow into combustion chamber based on measured temperature in chamber
09/20/2001DE10022877A1 Heating boiler fired by solid fuel has housing walls filled with heat insulating material and on inside is surrounding water chamber
09/05/2001EP1130320A1 Control system for boilers
09/04/2001US6285922 Device for controlling a gas-air mixture for a gas flame treatment
08/2001
08/28/2001CA2043551C Method and apparatus for optimizing fuel-to-air ratio in the combustible gas supply of a radiant burner
08/21/2001US6276929 Method for controlling kiln pressure
08/15/2001CN1308205A Fuel gas heater for pneumatically controlled premixing burner
07/2001
07/25/2001EP1118816A2 Stove and device for increasing the combustion characteristics of such a stove
07/19/2001DE10000653A1 Gas heater with pneumatically regulated premix burner has number/total cross-section of air stop holes selected so differential pressure is less than necessary for required gas-air mixture ratio
07/18/2001EP1116916A1 Gas heating appliance with pneumatically controlled premix-burner
07/10/2001US6257871 Control device for a gas-fired appliance
07/10/2001US6257870 Gas furnace with variable speed draft inducer
06/2001
06/20/2001CN1299947A Motor rotation-rate detection device for heating apparatus
05/2001
05/31/2001WO2001038794A1 Motor step-less speed control with active feedback of phase detector
05/31/2001CA2393160A1 Motor step-less speed control with active feedback of phase detector
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