| IPC 7 English version |
| F23M-F23M01300 |
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| SECTION F – MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING |
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| F 23 | COMBUSTION APPARATUS; COMBUSTION PROCESSES |
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| F 23 M | 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) |
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3/ | 00 | Firebridges (baffles not confining the fire F23M 9/06) |
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3/ | 02 | . | modified for circulation of fluids, e.g. air, steam, water |
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3/ | 04 | . | . | for delivery of gas, e.g. air, steam |
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3/ | 06 | . | . | . | into or towards fire |
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3/ | 08 | . | . | . | away from fire, e.g. towards smoke outlet |
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3/ | 10 | . | . | . | transversely |
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3/ | 12 | . | characterised by shape or construction (F23M 3/02 takes precedence) |
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3/ | 14 | . | . | with apertures for passage of combustion products |
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3/ | 16 | . | . | built-up in sections, e.g. using bars or blocks |
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3/ | 18 | . | . | double; multiple |
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3/ | 20 | . | . | comprising loose refractory material, wholly or in part |
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3/ | 22 | . | movable; adjustable |
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5/ | 00 | Casings; Linings; Walls (casings, linings, or walls of heat-treatment chambers of ovens, kilns, or retorts F27D) |
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5/ | 02 | . | characterised by the shape of the bricks or blocks used (ceramic materials C04B 33/00, C04B 35/00) |
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5/ | 04 | . | Supports for linings |
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5/ | 06 | . | Crowns or roofs for combustion chambers (F23M 5/02, F23M 5/04 take precedence) |
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5/ | 08 | . | Cooling thereof; Tube walls |
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7/ | 00 | Doors specially adapted for combustion chambers (in general E06B; for flues or smoke-boxes F23J 13/08) |
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7/ | 02 | . | Frames therefor |
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7/ | 04 | . | Cooling doors or door frames |
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9/ | 00 | Baffles or deflectors for air or combustion products; Flame shields |
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9/ | 02 | . | in air inlets |
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9/ | 04 | . | with air-supply passages in the baffle or shield |
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9/ | 06 | . | in fire-boxes |
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9/ | 08 | . | Helical or twisted baffles or deflectors |
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9/ | 10 | . | Baffles or deflectors formed as tubes, e.g. in water-tube boilers (interconnection of such tubes in boilers for fluid flow F22) |
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11/ | 00 | Safety arrangements (by controlling combustion F23N 5/24) |
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11/ | 02 | . | Preventing emission of flames or hot gases, or admission of air, through working or charging apertures |
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11/ | 04 | . | Means for supervising combustion, e.g. window (alarm systems G08B) |
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13/ | 00 | Other details [3] |
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