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

Note(s)

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

  • "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 covered by section C or by subclass F24J;
  • "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;
  • "burner" means a device by which fluent fuel is passed to a combustion space where it burns to produce a self-supporting flame;
  • "air" means a mixture of gases containing free oxygen and able to promote or support combustion.

 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 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)
 F23M 13/00
Other details  [3]