| Patents for F23N 1 - Regulating fuel supply (5,693) |
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| 05/16/1991 | WO1991006809A1 Microbridge-based combustion control |
| 05/16/1991 | CA2072122A1 Microbridge-based combustion control |
| 05/07/1991 | WO1991006918A1 Preemptive constraint control |
| 05/02/1991 | EP0424839A2 Safety circuit for gas- or oil burners |
| 05/02/1991 | DE3927416A1 Combustion chamber for central heating boiler - has three burners of different outputs which can operate singly or together |
| 04/23/1991 | US5010322 Housing for a process controller |
| 04/23/1991 | US5009588 Time-delay circuit for automatic shutdown of furnace systems |
| 04/17/1991 | EP0422835A2 Flame safeguard control anti-swap feature |
| 04/16/1991 | US5007404 Woodstove for heated air forced into a secondary combustion chamber and method of operating same |
| 04/10/1991 | EP0421820A2 Fluidized-bed combustion furnace |
| 04/06/1991 | CA2026927A1 Fluidized-bed combustion furnace |
| 04/02/1991 | US5003931 Method of and device for maintaining a parameter constant in a fluidized-bed furnace |
| 03/26/1991 | US5002484 Method and system for flue gas recirculation |
| 03/26/1991 | CA1282140C Excess air control |
| 03/21/1991 | DE3929759A1 Environment-friendly conversion of industrial waste oil-prods. - comprising mixing waste with air or steam and injecting into combustion boiler |
| 03/20/1991 | EP0417096A1 Method and apparatus for monitoring and controlling a heat generator of the pulsation combustion type. |
| 03/12/1991 | US4999792 Method and apparatus for automatic fuel changeover |
| 03/12/1991 | US4998878 Fuel control system for a burner |
| 03/12/1991 | US4998877 Blower burner |
| 03/07/1991 | DE4027984A1 Gas flow control for multiple burners |
| 03/06/1991 | EP0415582A2 Method and apparatus for modeling bunker flow for better combustion or other plant operation |
| 03/05/1991 | US4997161 Fuel control system throttle valve unit therefor and methods of making the same |
| 02/27/1991 | EP0413942A2 Heating device |
| 02/26/1991 | CA1280728C Vehicle heating system |
| 02/26/1991 | CA1280726C Thermostatic control valve assembly for fuel gas burner |
| 02/23/1991 | CA2023433A1 Double-combustor type pulsating combustion apparatus |
| 02/20/1991 | EP0413104A1 Method of controlling combustion in a furnace |
| 02/19/1991 | US4994959 Fuel burner apparatus and a method of control |
| 02/19/1991 | US4993401 Control system for glass-top cooking unit |
| 02/19/1991 | US4993222 Method for burning gaseous fuel, wherein fuel composition varies |
| 02/19/1991 | CA1280489C Heater control |
| 02/15/1991 | CA2023192A1 Method and apparatus for modeling bunker flow |
| 02/13/1991 | EP0412244A1 Process and apparatus for controlling the temperature of a boiler |
| 02/05/1991 | US4989523 Method and apparatus for extracting heat from a combustible material |
| 01/24/1991 | WO1991000978A1 Furnace control device |
| 01/24/1991 | DE3924075A1 Sintering furnace for raw material treatment - has continuously moving belt and burner assembly |
| 01/24/1991 | DE3924074A1 Handling of raw materials - involves continuous sintering furnace with carefully controlled combustion to burn off organic material |
| 01/23/1991 | EP0409225A2 Device for the thermal treatment of material consisting of thermally degradable and thermally stable substances |
| 01/23/1991 | EP0408846A1 Method for automatic adjustment of gas and oxygen or air mixtures in heating-or cutting torches |
| 01/23/1991 | EP0408755A1 Method and device for optoelectronic control of oxygen cutting |
| 01/23/1991 | CN1011334B Method and apparatus for burning powder coal |
| 01/22/1991 | US4986198 Method of controlling combustion in fluidized bed incinerator |
| 01/15/1991 | CA1278962C Underfed stoker boiler for burning bituminous coal and other solid fuel particles |
| 01/08/1991 | US4982721 A Plenum, a gas burner |
| 01/01/1991 | US4981087 Method for regulating the furnace output in incineration plants |
| 12/11/1990 | US4976459 Warmup method for a two stage furnace |
| 11/29/1990 | DE3924076C1 Mineral material sintering furnace - has burners above and below top run of conveyor belt |
| 11/28/1990 | EP0399994A2 Device for controlling the secondary air supply of a burner, especially of a heater |
| 11/28/1990 | EP0399134A2 Burner automat |
| 11/27/1990 | USRE33464 Method and apparatus for flame generation and utilization of the combustion products for heating, melting and refining |
| 11/20/1990 | US4971095 Fuel control valve construction, parts therefor and methods of making the same |
| 11/14/1990 | CN1046970A Method and automatic optimizaiton system of combustion processes in thermal objects |
| 11/13/1990 | US4969408 System for optimizing total air flow in coal-fired boilers |
| 11/13/1990 | CA1276263C System for controlling mass flow rates of two gases |
| 11/07/1990 | EP0396164A2 Method and device for controlling NOx emissions by vitiation |
| 11/07/1990 | EP0314722B1 Oven, in particular for burning solid fuels |
| 11/06/1990 | CA1275863C Apparatus and method for feeding particulate material such as coal and other bulk materials |
| 10/30/1990 | CA1275717C Gas flow controller |
| 10/18/1990 | DE4011690A1 Verfahren zur verbrennung eines brennstoff-luft-gemisches A process for the combustion of a fuel-air mixture |
| 10/18/1990 | DE4002941A1 Control for air-fuel supply to heating system - maintains correct air-to-fuel ratio at all air and fuel flow rates |
| 10/16/1990 | US4962749 Method of operating a natural gas furnace with propane |
| 10/16/1990 | CA1275209C Oil burner control for hydronic system |
| 10/10/1990 | EP0390964A2 Control device for gas burners |
| 10/03/1990 | EP0389782A2 Control device for the gas supply to a burner of a gas-heated device, especially a geyser |
| 10/02/1990 | US4960377 Gas/air mixing valve |
| 09/25/1990 | US4958765 Devices for controlling and regulating the gas supply to the burner of a boiler or similar |
| 09/20/1990 | DE4004527A1 Gas flow correction device for atom absorption photometer burner - allows gas flow to be optimised for analysed element |
| 09/20/1990 | DE3908138A1 Device for monitoring and/or regulating the combustion in an oil or gas burner |
| 09/19/1990 | EP0387703A2 Burner control for heating systems |
| 09/12/1990 | EP0256063B1 Process for operating a gas infra-red radiatior and gas infra-red radiatior |
| 09/11/1990 | CA1274006A1 System for regulating temperature of hot water in wall-hung instantaneous mixed gas heating units |
| 09/05/1990 | EP0384959A1 Regulator for a non-modulating burner |
| 09/04/1990 | US4953477 Method and apparatus for regulating the furnace output of incineration plants |
| 08/29/1990 | EP0384280A2 Heater for mobile units |
| 08/28/1990 | CA1273282A1 Device for controlling fuel combustion in a heater |
| 08/23/1990 | WO1990009552A1 Process and device for measuring the radiation emitted at at least two spatially separate points in a combustion process and for controlling the combustion process in function of the measured radiation |
| 08/23/1990 | DE3904788A1 Boiler with atmospheric gas burner |
| 08/23/1990 | DE3904272A1 Verfahren zum erfassen der von mindestens zwei raeumlich getrennten stellen eines verbrennungsprozesses ausgehenden strahlung und regeln des verbrennungsvorganges in abhaengigkeit von der erfassten strahlung und vorrichtung zur durchfuehrung des verfahrens A method for detecting the at least two spatially separated provide a combustion process outgoing radiation and regulate the combustion process as a function of the detected radiation and device for implementing the method |
| 08/16/1990 | DE4004389A1 Brennstoffbeheiztes geraet, zb wasserheizer Geraet fuel heated, eg water heaters |
| 08/15/1990 | CN1044704A Air flow measurement device for fluidized bed reactor |
| 08/08/1990 | EP0381438A2 Fluidized bed reactor comprising an air flow measurement device |
| 08/07/1990 | US4946381 Pulsating combustion system capable of varying combustion power |
| 08/07/1990 | US4946097 Control system for heating container for use on motor vehicle |
| 08/02/1990 | DE3918855A1 Controlled gas burner for heating boiler - has additional airflow provided by regulated blower to maintain programmed flame temperature |
| 08/01/1990 | EP0379759A1 Proportional control valve |
| 08/01/1990 | CN1044328A Method and apparatus for starting boiler of solid-fuel fired power plant and ensuring burning process of fuel |
| 07/26/1990 | DE4000710A1 Electric control of fuel supply to boiler of hot water heating plant - using magnetic valve to control fuel supply to burner and switch contact in current line to valve coil operated by thermostat |
| 07/25/1990 | CN1008937B Operation controlling equipment in flowing layer combustion apparatus |
| 07/24/1990 | US4942832 Furnace for controlling flame temperatures |
| 07/19/1990 | DE3841816A1 Valve, preferably a control valve for regulating the gas pressure in gas-heated appliances |
| 07/17/1990 | WO1990008289A1 Method and apparatus for starting the boiler of a solid-fuel fired power plant and ensuring the burning process of the fuel |
| 07/17/1990 | US4941609 Method and apparatus for controlling firing rate in a heating system |
| 07/17/1990 | CA2045541A1 Method and apparatus for starting the boiler of a solid-fuel fired power plant and ensuring the burning process of the fuel |
| 07/11/1990 | EP0377441A1 Safety-operational surveillance of a speed-rate controlled blower for furnace air |
| 07/11/1990 | CN1043781A Energy-storage pressurizer of gas |
| 07/03/1990 | US4938684 On-off burner control by cycle time variation |
| 07/03/1990 | CA1271122A1 Burner for gaseous fuel, particularly for a boiler, as well as method for burning gaseous fuel |
| 06/27/1990 | EP0375494A1 Automatic regulation method and apparatus for a discontinuously solid fuel-fired boiler using forced draft, particularly for a wood-fired boiler |
| 06/27/1990 | CN1008552B Gas flow controller |
| 06/20/1990 | CN1043193A Power unit control method and power unit control system |