| Patents for F23L 7 - Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam (4,061) |
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| 03/11/1992 | CN2098628U Multifunctional household water gas stove |
| 03/11/1992 | CN2098627U Household stove of producing steam |
| 03/11/1992 | CN2098616U Verticle coal-burning stem boiler |
| 03/04/1992 | CA2050421A1 Combustion process and device for it |
| 02/26/1992 | CN1059024A Steam coal stove for household |
| 02/25/1992 | CA1296248C Oxygen enriched combustion |
| 02/25/1992 | CA1296162C Limiting the presence of the oxides of nitrogen in regenerative heating systems |
| 02/20/1992 | DE4026245A1 Waste combustion with pure oxygen, melting mineral component - gives redn. of waste gas vol., facilitating sepn. of impurities |
| 02/19/1992 | CN2096706U Domestic multifunction water-coal stove |
| 02/13/1992 | DE4033889A1 Solid-fuel combustion system in grate - diverts part of exhaust gas back to fire again |
| 01/29/1992 | CN2094688U Heat-accumulated gas range |
| 01/29/1992 | CN2094686U Domestic infrared ray gas range |
| 01/29/1992 | CN2094685U High-efficient smoke-eliminating burner for coal-throw machine boiler |
| 01/28/1992 | US5084216 To a boiler or internal combustion engine for greater efficien cy and reduced exhaust gases |
| 01/08/1992 | CN2092685U Multi-purpose highly efficient gas producible coal stove |
| 01/08/1992 | CN2092684U Vaporization liner for coal stove |
| 01/08/1992 | CN2092683U Ring figured tank type coal stove liner |
| 01/08/1992 | CN2092677U Fire box being able to eliminate smoke and remove dust for boiler of coal thrower |
| 01/01/1992 | CN2092047U Multifunctional coal stove (range) by vaporisation and fire jetting |
| 12/31/1991 | CA1293689C Low no- high efficiency combusion process |
| 12/25/1991 | CN2091411U Water-gas vapour device for coal stove |
| 12/19/1991 | DE4118061A1 Gas-turbine power plant - has heat-exchanger between water and air in supply system to burner |
| 12/18/1991 | EP0461853A2 Residential furnaces, air-intake system therefor, and method of operating them |
| 12/14/1991 | CA2044396A1 Air-intake system for residential furnaces |
| 12/04/1991 | CN2090020U Auto-control striking multifunction efficient combined coal stove |
| 11/20/1991 | CN2089127U High efficient coal saving double purpose stove for cooking and warming |
| 11/13/1991 | CN2088656U Multi-function domestic stove |
| 11/13/1991 | CN2088653U Multi-kind coal two-direction strong fire-jetting coal-saving furnace |
| 11/13/1991 | CN2088650U Multi-purpose for cooking and warming |
| 11/13/1991 | CN2088648U High-efficiency energy-saving gasified furnace |
| 11/13/1991 | CN1056150A Breech loaded fuel nozzle |
| 11/06/1991 | EP0455459A2 Combustion method and apparatus |
| 11/05/1991 | US5062792 Hybrid burner for a pre-mixing operation with gas and/or oil, in particular for gas turbine systems |
| 10/22/1991 | US5058374 Injector |
| 10/16/1991 | CN2086866U Household gas heating stove |
| 10/02/1991 | CN2085918U High-efficiency energy-saving burner for liquid gas range |
| 10/01/1991 | US5053059 Air-intake system for residential furnaces |
| 09/25/1991 | CN2085482U Domestic coal burning gas stove |
| 09/25/1991 | CN2085478U Domestic gas generator |
| 09/18/1991 | CN2085029U Efficient burning aid |
| 09/18/1991 | CN2085028U Efficient smoke-reducing scrubber for boiler wit coal throwing machine |
| 09/11/1991 | CN2084576U High temp. hydrolytic gas or liquified gas stove |
| 09/11/1991 | CN2084563U Gasified coal stove |
| 09/04/1991 | CN2084162U Steam-generating energy-saving device for range |
| 09/04/1991 | CN1054293A Apparatus for producing highly humid air |
| 08/28/1991 | CN2083702U Left type automatic gas-jet burning aid energy-saving range |
| 08/21/1991 | CN2083259U Energy-saving, smoke-eliminating and desulphurizing semiwater gas stove |
| 08/21/1991 | CN2083253U Miniature burning-aid |
| 08/14/1991 | CN2082815U Vaporizer for coal stove |
| 08/13/1991 | US5038690 Waste combustion system |
| 08/07/1991 | EP0440511A1 Apparatus for producing highly humid air |
| 08/07/1991 | CN2082369U Coal combustion gas stoves |
| 07/31/1991 | EP0438416A1 Method and apparatus for enhancing combustion and operational efficiency in a glass melting furnace |
| 07/10/1991 | CN2080635U Water, gas energy-saving range |
| 07/10/1991 | CN2080618U Detonator for kiln (furnace) |
| 07/10/1991 | CN1052933A Method for saving fuel |
| 07/03/1991 | EP0380566B1 Process for disposal of waste by combustion with oxygen |
| 06/11/1991 | US5022331 Method and apparatus for introducing combustion air into a furnace |
| 06/05/1991 | WO1991008044A1 Vibratory ion vapor generator |
| 06/05/1991 | EP0332644B1 Burner intended reducing the flame temperature |
| 05/28/1991 | US5018458 Furnace combustion zone temperature control method |
| 05/22/1991 | CN2077515U Burning-supporting duster for boiler |
| 05/15/1991 | CN2077091U Multipurpose domestic stove for cooking and heating |
| 05/09/1991 | WO1991007127A1 Hazardous waste multi-sectional rotary kiln incinerator |
| 05/09/1991 | CA2073192A1 Hazardous waste multi-sectional rotary kiln incinerator |
| 05/02/1991 | DE4033710A1 Combustion chamber for gas turbine - has system to spray water into combustion air to reduce nitrous oxide in exhaust gases |
| 04/24/1991 | EP0423417A1 Process for the selective, non-catalytic reduction of the emissions from oil-fired boiler plants |
| 04/24/1991 | CN2075750U Household steam coal stove |
| 04/10/1991 | CN2074876U Coal burning type combined gas stove |
| 04/10/1991 | CN2074873U High-efficient non-pollution gasification energy-saving furnace |
| 04/09/1991 | US5005493 Hazardous waste multi-sectional rotary kiln incinerator |
| 03/27/1991 | CN2073988U Steam coal-saving stove |
| 03/21/1991 | DE4019893A1 Redn. of nitric oxide in exhaust and flue gases - by redox milk, ammonium salt emulsion is improvement over catalytic methods |
| 03/13/1991 | EP0416533A1 Combustion process having improved temperature distribution |
| 03/13/1991 | CN1049902A Hydrated ion solid fuel furnace for secondary combustion of water |
| 03/06/1991 | CN2072655U Miniature water-gas stove |
| 02/27/1991 | CN2072194U Burning aid by vaporization of stove water at high-temp |
| 02/20/1991 | EP0413309A2 Reduced NOx combustion method |
| 02/20/1991 | CN2071760U Quick vapourization honeycomb briquet stove |
| 02/19/1991 | CA1280319C Method of stable combustion for a fluidized bed incinerator |
| 02/05/1991 | US4990023 Joint for assembling of sieve elements |
| 01/31/1991 | DE3924908A1 Freezing dried carbon di:oxide from fossil fuel combustion - for sinking as dry ice into deep sea to counter greenhouse effect |
| 01/29/1991 | US4988285 Reduced Nox combustion method |
| 01/10/1991 | DE3920206A1 Combustion chamber for central heating boiler - can operate either on liq. or gaseous fuel |
| 01/09/1991 | CN2069078U Coal-saving domestic stove |
| 12/11/1990 | US4976207 Process of improved postcombustion with rapid triggering and means for implementation in a heating and incineration device |
| 11/28/1990 | CN2066552U Water gas generating stove |
| 11/28/1990 | CN1047380A Briquet gas stove |
| 11/27/1990 | USRE33464 Method and apparatus for flame generation and utilization of the combustion products for heating, melting and refining |
| 11/21/1990 | CN2066102U Boiler secondary burner |
| 11/14/1990 | CN2065724U High-effcient coal-saving infrared ray coal stove |
| 11/07/1990 | EP0314722B1 Oven, in particular for burning solid fuels |
| 11/01/1990 | WO1990012987A1 Device for feeding combustible materials and additives in burner installations |
| 10/31/1990 | DE3913886A1 Control of nitrous oxide in boiler flue gases - by control of flow rate of recirculated flue gases to minimise formation of nitrous oxide before discharge into atmosphere |
| 10/31/1990 | CN2064863U Multi-coal pressure fire spray coal-saving stove |
| 10/24/1990 | CN2064463U Power-saving stoves without smoke |
| 10/10/1990 | EP0391858A1 Apparatus for flue gas recirculation in oil and gas burners |
| 10/10/1990 | CN2063609U Energy-saving smoke-eliminating device for boiler |
| 10/04/1990 | WO1990011433A1 A system reducing air, water and soil pollution |
| 09/19/1990 | CN2062420U Steam high efficient multi-functional coal saving stove |