F
SECTION F — MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  
LIGHTING AND HEATING
 F23
COMBUSTION APPARATUS; COMBUSTION PROCESSES
 F23

Note(s)

In this class, the following terms are used with the meanings indicated:

  1. "Combustion" means the direct combination of oxygen gas, e.g. in air, and a burnable substance. Any other heat-producing combination of chemical substances, e.g. hydrogen peroxide and methane, iron oxide and aluminium, is provided for in Section C or in sub-class F24J.
  2. "Combustion chamber" means a chamber in which fuel is burned to establish a self-supporting fire or flame and which surrounds that fire or flame.
  3. "Burner" means a device by which fluent fuel is passed to a combustion space where it burns to produce a self-supporting flame.
  4. "Air" means a mixture of gases containing free oxygen and able to promote or support combustion.

 F23M
COMBUSTION CHAMBERS FOR COMBUSTION APPARATUS (support of tube walls for steam boilers F22B; for generating combustion products of high pressure or high velocity F23R)
 F23M 1/00
Types of combustion chambers
 F23M 1/02
·  annular
 F23M 1/04
·  rotary
 F23M 1/06
·  shaft-type, i.e. chambers containing a deep bed of fuel with respect to diameter
 F23M 1/10
·  in which combustion residues are removed in solid form
 F23M 1/12
·  in which combustion residues are removed in liquid form
 F23M 3/00
Firebridges (baffles not 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 (materials per se C04B 33/00, C04B 35/00)
 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 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 9/02
·  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)