WebCPC CPC COOPERATIVE PATENT CLASSIFICATION

F23M　CONSTRUCTIONAL DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR (construction or support of tube walls for steam boilers F22B; generating combustion products of high pressure or high velocity F23R)

F23M 3/00 Firebridges (baffles non confining the fire F23M 9/06)

F23M 3/02 ・modified for circulation of fluids, e.g. air, steam, water

F23M 3/04 ・・for delivery of gas, e.g. air, steam

F23M 3/06 ・・・into or towards fire

F23M 3/08 ・・・away from fire, e.g. towards smoke outlet

F23M 3/10 ・・・transversely

F23M 3/12 ・characterised by shape or construction (F23M 3/02 takes precedence)

F23M 3/14 ・・with apertures for passage of combustion products

F23M 3/16 ・・built-up in sections, e.g. using bars or blocks

F23M 3/18 ・・double; multiple

F23M 3/20 ・・comprising loose refractory material, wholly or in part

F23M 3/22 ・movable; adjustable

F23M 5/00 Casings; Linings; Walls (casings, linings, or walls of heat-treatment chambers of ovens, kilns, or retorts F27D)

F23M 5/02 ・characterised by the shape of the bricks or blocks used (ceramic materials C04B 33/00, C04B 35/00)

F23M 5/025 ・・{specially adapted for burner openings}

F23M 5/04 ・Supports for linings

F23M 5/06 ・Crowns or roofs for combustion chambers (F23M 5/02, F23M 5/04 take precedence)

F23M 5/08 ・Cooling thereof; Tube walls

F23M 5/085 ・・{using air or other gas as the cooling medium}

F23M 7/00 Doors specially adapted for combustion chambers (in general E06B; for flues or smoke-boxes F23J 13/08)

F23M 7/02 ・Frames therefor

F23M 7/04 ・Cooling doors or door frames

F23M 9/00 Baffles or deflectors for air or combustion products; Flame shields

F23M 9/003 ・{in flue gas ducts}

F23M 9/006 ・・{Backflow diverters}

F23M 9/02 ・in air inlets

F23M 9/04 ・with air-supply passages in the baffle or shield

F23M 9/06 ・in fire-boxes

F23M 9/08 ・Helical or twisted baffles or deflectors

F23M 9/10 ・Baffles or deflectors formed as tubes, e.g. in water-tube boilers (interconnection of such tubes in boilers for fluid flow F22)

F23M 11/00 Safety arrangements (by controlling combustion F23N 5/24)

F23M 11/02 ・Preventing emission of flames or hot gases, or admission of air, through working or charging apertures

F23M 11/04 ・Means for supervising combustion, e.g. window (alarm systems G08B)

F23M 11/042 ・・{Viewing ports of windows}

F23M 11/045 ・・{by oberving the flame}

F23M 11/047 ・・{by observing the flue gas (controlling combustion using gas detectors F23N 5/003)}

F23M 99/00 Subject matter not provided for in other groups of this subclass, {e.g. heat storage from flames}

F23M 99/005 ・{Noise absorbing means}

F23M 2700/00 Constructional details of combustion chambers

F23M 2700/005 ・Structures of combustion chambers or smoke ducts

F23M 2700/0053 ・・Bricks for combustion chamber walls

F23M 2700/0056 ・・Bricks for water tube combustion chamber walls

F23M 2700/007 ・Automatic fire extinguishing devices

F23M 2700/008 ・Preventing outwards emission of flames or hot gases

F23M 2900/00 Special features of, or arrangements for combustion chambers

F23M 2900/05001 ・Preventing corrosion by using special lining materials or other techniques

F23M 2900/05002 ・Means for accommodate thermal expansion of the wall liner

F23M 2900/05003 ・Details of manufacturing specially adapted for combustion chambers

F23M 2900/05004 ・Special materials for walls or lining

F23M 2900/05005 ・Sealing means between wall tiles or panels

F23M 2900/05021 ・Wall blocks adapted for burner openings

F23M 2900/09061 ・Moving baffles, e.g. rotating baffles, for creating vortices

F23M 2900/09062 ・Tube-shaped baffles confining the flame (flame tubes forming part of the burner head F23D 2900/11403)

F23M 2900/11021 ・Means for avoiding accidental fires in rooms where the combustion device is located

F23M 2900/11041 ・Means for observing or monitoring flames using photoelectric devices, e.g. phototransistors

F23M 2900/13001 ・Energy recovery by fuel cells arranged in the combustion plant

F23M 2900/13002 ・Energy recovery by heat storage elements arranged in the combustion chamber

F23M 2900/13003 ・Energy recovery by thermoelectric elements, e.g. by Peltier/Seebeck effect, arranged in the combustion plant

F23M 2900/13004 ・Energy recovery by thermo-photo-voltaic (TPV) elements arranged in the combustion plant