Patents for F23N 5 - Systems for controlling combustion (9,434)
02/1992
02/04/1992US5085573 Hot surface ignition system for a gas furnace, control device therefor and methods of making the same
01/1992
01/29/1992EP0468756A1 Flame failure gas cut-off valve
01/26/1992CA2043577A1 Method and apparatus of controlling fuel-to-air ratio of the combustible gas supply of a radiant burner
01/15/1992EP0466067A1 Apparatus for detecting leaks in a system for delivering gaseous fuel
01/14/1992US5080578 Liquid fuel burning heater having flame stopping means
01/11/1992CA2046503A1 Apparatus and method for detecting leaks in a system for delivering gaseous fuel
01/08/1992EP0464476A1 Flow rate regulating mechanism for gas lighters and similar devices and method of producing a microcell polymer filter for use therein
01/08/1992CN2092697U Safety device for combustion gas burner
01/08/1992CN1057713A Flow rate regulating mechanism for gas lighters and similar devices and method of producing microcell polymer filter
01/07/1992US5078317 Heater for mobile units
01/07/1992US5078100 Method and apparatus for burning solid or sludge-like fuels in a fluidized bed
01/07/1992CA1293987C Hot water control
12/1991
12/31/1991US5077550 Burner flame sensing system and method
12/31/1991US5076780 Digital controller component failure detection for gas appliance ignition function
12/24/1991US5074780 Control system for forced combustion air heating appliance
12/18/1991EP0364480B1 Automatic combustion control for a rotary combustor
12/18/1991CN2090938U Gas-burning rice pot
12/17/1991US5073769 Flame detector using a discrete fourier transform to process amplitude samples from a flame signal
12/17/1991US5073104 Flame detection
12/12/1991WO1991019147A1 Method and apparatus for control of carbon baking furnaces
12/12/1991DE4018471A1 Automatic burner ignition circuit for through-flow water heater - uses switched constant current source supplying feed valve energising magnet
12/10/1991US5071105 Gas torch with visual observation device
12/05/1991DE4117611A1 Continuous monitoring equipment for variable air floor - controls electrical motor according to air demand signal and computed efficiency
12/04/1991CN2090020U Auto-control striking multifunction efficient combined coal stove
11/1991
11/27/1991CN2089571U Electromechanical integrated controller for oil field thermo-productio boiler
11/26/1991US5067651 Fuel control device, fuel control system using the device and method of making the device
11/26/1991CA1292420C Apparatus for controlling combustion in heater
11/26/1991CA1292397C Method for providing variable output gas-fired furnace with a constant temperature rise and efficiency
11/21/1991EP0457232A1 Improvements in the control and monitoring circuit of a conversion burner
11/13/1991EP0456245A2 Ignition system for a heater using a fuel
11/13/1991CN1056157A Automatic control and alarm safety device for fuel gas
11/12/1991CA1291941C Fuel control device, fuel control system using the device and method of making the device
11/09/1991WO1991017395A1 An apparatus for detecting carryover particles in the interior of a furnace
11/09/1991WO1991017394A1 Method and apparatus for profiling the bed of a furnace
11/06/1991CN2088205U Hand/automatic control multi-functional secondary combustion furnace
11/06/1991CN2088204U Stove capable of time opening door
11/05/1991US5063527 Monitor system
10/1991
10/30/1991EP0454613A1 Gas appliance
10/24/1991DE4112449A1 Burner regulation system providing defined flame front position - uses temp. sensor signal for controlling air supplied to burner
10/23/1991EP0452616A2 Combustion method for solid or slurry-type fuels in a fluidised bed
10/22/1991US5059114 Heating apparatus and method
10/22/1991US5058443 Process for testing operational components in heaters and testing device for this purpose
10/17/1991WO1991015716A1 Security system for a combustion heating installation
10/17/1991WO1991015715A1 Burner control
10/16/1991EP0452029A1 Control in combination with thermostatically responsive assembly
10/16/1991CN1055429A Gas turbine flame detection system with refrected flame radiation attenuator
10/10/1991DE4010570A1 Monitoring esp. of oil burner - using silicon carbide photodiode as radiation detector
10/09/1991EP0450173A1 Mixture control device for a pre-mixed gas burner
10/08/1991CA1290238C Operation of a pulse fired burner
10/06/1991CA2039752A1 Mode selector for a heating system controller
10/03/1991WO1991014915A1 Method of controlling combustion in fluidized bed incinerator
10/02/1991CN2085921U Electronic extinguishing protection and automatic control device for burning gas range, etc.
10/01/1991US5052921 Controlling temperature
10/01/1991US5052917 Double-combustor type pulsating combustion apparatus
10/01/1991US5052344 Incineration control apparatus for a fluidized bed boiler
09/1991
09/26/1991DE4038925A1 Combustion controller for burner e.g. of industrial furnace - includes counter of attempts at flame reignition above temp. where safety regulations dispense with flame monitoring
09/25/1991EP0448310A1 Gas turbine flame detection system
09/25/1991EP0448202A1 Airflow switch checking circuit
09/24/1991US5051089 Integral pilot burner-generator
09/20/1991CA2035665A1 Airflow switch checking circuit
09/19/1991WO1991014133A1 Method and system for crushing and drying a solid fuel
09/19/1991DE4007799A1 Burner for gas fired boiler - has device to maintain flow of mixt. of air and gas at constant velocity
09/18/1991CN2085039U Timely automatic fire-out device for gas stove
09/18/1991CN1013926B Control of suspension density using radiation source
09/17/1991US5049063 Combustion control apparatus for burner
09/17/1991US5048430 Method of stopping combustion in restrained combustion furnace in safety and combustion stop system therefor
09/13/1991CA2027623A1 High temperature-generating method and application thereof
09/11/1991CN2084566U Automatic controller for range wind inlet
09/10/1991US5046943 Air throttle control for a two-stage blower burner
09/10/1991CA1288553C Process for recovering energy and chemicals in pulping processes
09/03/1991US5044929 Ignition control apparatus for pulse combustor
09/03/1991US5044390 Cam operated fuel valve
09/03/1991US5044287 Method of controlling combustion in a fluidized bed furnace
09/03/1991US5044158 Process and device for closed-loop and open-loop control of the output of a burner
08/1991
08/28/1991EP0442994A1 Method of studying pressure combustion processes of stoichiometrically burning hydrogen/oxygen under high pressures
08/27/1991CA1288037C Gas ignition apparatus
08/20/1991US5040972 Pyrolyzer-kiln system
08/20/1991US5040470 Steam generating system with NOx reduction
08/14/1991EP0440872A2 Ignition and safety circuit for gas burners
08/14/1991DE4004194A1 Safety circuit with timing device for oil burner - switches-off burner and activates alarm after time lapse required for ignition, unless cutout has operated
08/13/1991US5039006 Home heating system draft controller
08/10/1991CA2027978A1 Warmup method for a two stage furnace
08/10/1991CA2027506A1 Two stage furnace control
08/10/1991CA2027480A1 Fan control arrangement for a two stage furnace
08/07/1991CN1053692A Microcontroller controlled static input protection
08/06/1991US5037761 Controlling temperature then directing a gas through a manifold to generate a direct current signal
08/06/1991US5037292 Heater for motor vehicle
08/06/1991US5037291 Method and apparatus for optimizing fuel-to-air ratio in the combustible gas supply of a radiant burner
08/01/1991DE4002570A1 Extra heating system for vehicle - has fuel-fired burner flame monitored by phototransistor located in central hole in plate
07/1991
07/31/1991EP0439417A1 Safety device for the operating of a burner
07/31/1991CN2081945U Coal-saving stove using electrothermal timming ignition
07/30/1991US5035607 Fuel burner having an intermittent pilot with pre-ignition testing
07/24/1991EP0438294A1 Microcontroller controlled static input protection
07/24/1991CN2081494U Time open device of honeycomb briquet stove door
07/23/1991US5033449 Electronic grill control
07/19/1991CA2033951A1 Microcontroller controlled static input protection
07/17/1991EP0437352A1 Gas burner arrangements
07/16/1991CA1286387C Microcomputer-based spark ignition gas burner control system
07/10/1991EP0436439A1 Back draught security gas valve for pilotless hot water heater
07/10/1991CN2080625U Timing opening device for fire door
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