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.

 F23D
BURNERS (generating combustion products of high pressure or high velocity F23R)
 F23D 1/00
Burners for combustion of pulverulent fuel (disposition of burners F23C)
 F23D 1/02
·  Vortex burners, e.g. for cyclone-type combustion apparatus
 F23D 1/04
·  Burners producing cylindrical flames without centrifugal action
 F23D 1/06
·  Burners producing sheet flames
 F23D 3/00 - 
F23D 11/00
Combustion of a liquid
 F23D 3/00
Burners using capillary action
 F23D 3/02
·  Wick burners
 F23D 3/04
·  ·  with flame spreaders (F23D 3/12 takes precedence)
 F23D 3/06
·  ·  Inverted wick burners, e.g. for illumination
 F23D 3/08
·  ·  characterised by shape, construction, or material, of wick
 F23D 3/10
·  ·  Blue-flame burners
 F23D 3/12
·  ·  ·  with flame spreaders
 F23D 3/14
·  ·  ·  with mixing of air and fuel vapour in a chamber before the flame
 F23D 3/16
·  ·  using candles (candles per se C11C)
 F23D 3/18
·  ·  Details of wick burners
 F23D 3/20
·  ·  ·  Flame spreaders
 F23D 3/22
·  ·  ·  Devices for mixing evaporated fuel with air
 F23D 3/24
·  ·  ·  Carriers for wicks
 F23D 3/26
·  ·  ·  ·  Safety devices thereon
 F23D 3/28
·  ·  ·  Wick-adjusting devices
 F23D 3/30
·  ·  ·  ·  directly engaging with the wick
 F23D 3/32
·  ·  ·  ·  engaging with a tube carrying the wick
 F23D 3/34
·  ·  ·  ·  Wick stop devices; Wick-fixing devices
 F23D 3/36
·  ·  ·  Devices for trimming wicks
 F23D 3/38
·  ·  ·  Devices for replacement of wicks
 F23D 3/40
·  the capillary action taking place in one or more rigid porous bodies
 F23D 5/00
Burners in which liquid fuel evaporates in the combustion space, with or without chemical conversion of evaporated fuel
 F23D 5/02
·  the liquid forming a pool, e.g. bowl-type evaporators, dish-type evaporators
 F23D 5/04
·  ·  Pot-type evaporators, i.e. using a partially-enclosed combustion space
 F23D 5/06
·  the liquid forming a film on one or more plane or convex surfaces
 F23D 5/08
·  ·  on cascaded surfaces
 F23D 5/10
·  ·  on grids
 F23D 5/12
·  Details
 F23D 5/14
·  ·  Maintaining predetermined amount of fuel in evaporator
 F23D 5/16
·  ·  Safety devices
 F23D 5/18
·  ·  Preheating devices
 F23D 7/00
Burners in which drops of liquid fuel impinge on a surface
 F23D 9/00
Burners in which a stream of liquid fuel impinges intermittently on a hot surface
 F23D 11/00
Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space (spraying in general B05B, B05D)
 F23D 11/02
·  the combustion space being a chamber substantially at atmospheric pressure
 F23D 11/04
·  the spraying action being obtained by centrifugal action
 F23D 11/06
·  ·  using a horizontal shaft
 F23D 11/08
·  ·  using a vertical shaft
 F23D 11/10
·  the spraying being induced by a gaseous medium, e.g. water vapour
 F23D 11/12
·  ·  characterised by the shape or arrangement of the outlets from the nozzle
 F23D 11/14
·  ·  ·  with a single outlet, e.g. slit
 F23D 11/16
·  ·  in which an emulsion of water and fuel is sprayed
 F23D 11/18
·  ·  the gaseous medium being water vapour generated at the nozzle
 F23D 11/20
·  ·  ·  the water vapour being superheated
 F23D 11/22
·  ·  the gaseous medium being vaporised fuel, e.g. for a soldering lamp
 F23D 11/24
·  by pressurisation of the fuel before a nozzle through which it is sprayed by a substantial pressure reduction into a space
 F23D 11/26
·  ·  with provision for varying the rate at which the fuel is sprayed
 F23D 11/28
·  ·  ·  with flow-back of fuel at the burner, e.g. using by-pass
 F23D 11/30
·  ·  ·  with return feed of uncombusted sprayed fuel to reservoir
 F23D 11/32
·  by electrostatic means
 F23D 11/34
·  by ultrasonic means
 F23D 11/36
·  Details
 F23D 11/38
·  ·  Nozzles (nozzles in general B05B); Cleaning devices therefor
 F23D 11/40
·  ·  Mixing tubes; Burner heads
 F23D 11/42
·  ·  Starting devices (igniting F23Q)
 F23D 11/44
·  ·  Preheating devices; Vaporising devices
 F23D 11/46
·  ·  Devices on the vaporiser for controlling the feeding of the fuel
 F23D 13/00 - 
F23D 15/00
Burners for combustion of a gas or of gas stored under pressure as a liquid (joining metal by heat B23K; welding processes B23K)
 F23D 13/00
Burners in which gaseous fuel is mixed with air before transfer to the combustion space
 F23D 13/02
·  with provision for a pilot flame
 F23D 13/04
·  in association with a gas source, e.g. acetylene generator, container for liquefied gas
 F23D 13/06
·  for cutting or welding of metal under water (nozzles for cutting metal F23D 13/32)
 F23D 13/08
·  for heating liquids, e.g. for vaporising, for concentrating
 F23D 13/10
·  Bunsen burners
 F23D 13/12
·  for producing infra-red radiation
 F23D 13/14
·  ·  using screens or perforated ceramic plates
 F23D 13/16
·  ·  using permeable blocks
 F23D 13/18
·  ·  using catalysis for flameless combustion
 F23D 13/20
·  Flare stack burners
 F23D 13/22
·  Inverted burners, e.g. for illumination
 F23D 13/24
·  Details
 F23D 13/26
·  ·  Nozzles
 F23D 13/28
·  ·  ·  Cleaning devices therefor
 F23D 13/30
·  ·  ·  for torches; for blowpipes
 F23D 13/32
·  ·  ·  ·  for cutting of metal
 F23D 13/34
·  ·  ·  for spreading the flame over an area, e.g. for desurfacing of solid material, for surface hardening, for heating workpieces
 F23D 13/36
·  ·  ·  characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
 F23D 13/38
·  ·  Devices for simultaneous control of gas and air (regulation of combustion in general F23N)
 F23D 13/40
·  ·  Mixing devices; Mixing tubes
 F23D 13/42
·  ·  Preheating the air or gas
 F23D 13/44
·  ·  Treating the air or gas, e.g. by filtering; by moistening (in general B01)
 F23D 13/46
·  ·  Safety devices, e.g. operative in case of failure of gas supply (protection or supervision of pipe-line systems F17D 5/00)
 F23D 13/48
·  ·  ·  by selection of non-toxic gas, e.g. for Argand burners
 F23D 15/00
Burners in which gaseous fuel is mixed with air on arrival at the combustion space
 F23D 15/02
·  the combustion space being a chamber substantially at atmospheric pressure
 F23D 15/04
·  Details
 F23D 17/00 - 
F23D 23/00
Other burners
 F23D 17/00
Burners for combustion conjointly or alternatively of gaseous or liquid or pulverulent fuel
 F23D 19/00
( transferred to F23C 11/02 )
 F23D 21/00
Burners not otherwise provided for
 F23D 23/00
Assemblies of two or more burners (provision of pilot burners F23D 13/02; disposition of burners F23C; for industrial furnaces F27)