F
SECTION F — MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
 F01 - 
F04
Subsection index
MACHINES
positive displacement
rotary or oscillating piston
liquid and elastic fluid or elastic fluidF01C
liquid onlyF04C
reciprocating piston or other
liquid and elastic fluid or elastic fluidF01B
liquid onlyF04B
non-positive displacement
liquid and elastic fluid or elastic fluidF01D
liquid onlyF03B
ENGINES
positive displacement
rotary or oscillating piston
liquid and elastic fluid or elastic fluidF01C
liquid onlyF03C
reciprocating piston or other
liquid and elastic fluid or elastic fluidF01B
liquid onlyF03C
non-positive displacement
liquid and elastic fluid or elastic fluidF01D
liquid onlyF03B
PUMPS
positive displacement
rotary or oscillating pistonF04C
reciprocating piston or otherF04B
non-positive displacementF04D
  
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.

 F23D
BURNERS (generating combustion products of high pressure or high velocity F23R)
 F23D
Subclass index
BURNERS FOR PULVERULENT FUEL 1/00
BURNERS FOR COMBUSTION OF A LIQUID
Using capillary action 3/00
Using fuel evaporation; direct spraying action 5/00; 11/00
Using fuel impingement on a surface 7/00, 9/00
BURNERS FOR COMBUSTION OF A GAS 14/00
BURNERS FOR COMBUSTION OF GASEOUS OR LIQUID OR PULVERULENT FUEL 17/00
OTHER BURNERS 21/00
ASSEMBLIES OF TWO OR MORE BURNERS 23/00
P:20 F23D 1/00
Burners for combustion of pulverulent fuel (arrangement or mounting of burners F23C 5/00)
 F23D 3/00 - 
F23D 11/00
Combustion of a liquid
P:60 F23D 3/00
Burners using capillary action
P:70 F23D 5/00
Burners in which liquid fuel evaporates in the combustion space, with or without chemical conversion of evaporated fuel
P:50 F23D 7/00
Burners in which drops of liquid fuel impinge on a surface
P:40 F23D 9/00
Burners in which a stream of liquid fuel impinges intermittently on a hot surface
P:30 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 11/10
·  the spraying being induced by a gaseous medium, e.g. water vapour
 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 11/36
·  Details
 F23D 11/40
·  ·  Mixing tubes; Burner heads
P:80 F23D 14/00
Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid  [4]
 F23D 14/02
·  Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone  [4]
 F23D 14/04
·  ·  induction type, e.g. Bunsen burner  [4]
 F23D 14/12
·  Radiant burners  [4]
 F23D 14/18
·  ·  using catalysis for flameless combustion  [4]
 F23D 14/46
·  Details  [4]
 F23D 14/48
·  ·  Nozzles (for spraying or coating B05B)  [4]
 F23D 14/72
·  ·  Safety devices, e.g. operative in case of failure of gas supply (protection or supervision of pipe-line systems F17D 5/00)  [4]
 F23D 17/00 - 
F23D 23/00
Other burners
P:10 F23D 17/00
Burners for combustion simultaneously or alternately of gaseous or liquid or pulverulent fuel
P:90 F23D 21/00
Burners not otherwise provided for
P:0 F23D 23/00
Assemblies of two or more burners (gas burners with provision for a retention flame F23D 14/00; arrangement or mounting of burners F23C 5/00; for industrial furnaces F27)