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.

 F23K
FEEDING FUEL TO COMBUSTION APPARATUS
 F23K 1/00
Preparation of lump or pulverulent fuel in readiness for delivery to combustion apparatus (filtration B01D; mixing B01F; pulverising B02C; drying F26B)
 F23K 1/02
·  Mixing solid fuel with a liquid, e.g. preparing slurries
 F23K 1/04
·  Heating fuel prior to delivery to combustion apparatus
 F23K 3/00
Feeding or distributing of lump or pulverulent fuel to combustion apparatus (conveying in general B65G)
 F23K 3/02
·  Pneumatic feeding arrangements, i.e. by air blast
 F23K 3/04
·  for locomotive boiler furnaces
 F23K 3/06
·  for shaft-type furnaces
 F23K 3/08
·  for furnaces having movable grate bars
 F23K 3/10
·  Under-feed arrangements
 F23K 3/12
·  ·  feeding by piston
 F23K 3/14
·  ·  feeding by screw
 F23K 3/16
·  Over-feed arrangements
 F23K 3/18
·  ·  Spreader stokers
 F23K 3/20
·  ·  ·  with moving hoppers
 F23K 3/22
·  Controlling thickness of fuel bed
 F23K 5/00
Feeding other fuel to combustion apparatus