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.

 F23H
GRATES (inlets for fluidisation air for fluidised bed combustion apparatus F23C 10/20); CLEANING OR RAKING GRATES
 F23H
Subclass index
GRATES
With solid bars; with hollow bars 1/00; 3/00
Double; inclined; revolving or rocking; travelling 5/00; 7/00; 9/00; 11/00
Other types 13/00
Details 17/00
CLEANING ARRANGEMENTS FOR GRATES, MOVING FUEL ALONG GRATE 15/00
 F23H 1/00
Grates with solid bars
 F23H 1/02
·  having provision for air supply or air preheating, e.g. air-supply or blast fittings which form part of the grate structure or serve as supports
 F23H 1/04
·  having a variable burning surface
 F23H 1/06
·  having bars at different levels (double grates F23H 5/00)
 F23H 1/08
·  Vertical grates
 F23H 3/00
Grates with hollow bars
 F23H 3/02
·  internally cooled
 F23H 3/04
·  externally cooled, e.g. with water, steam, or air
 F23H 5/00
Double grates
 F23H 7/00
Inclined grates (inclined travelling grates F23H 11/12)
 F23H 7/02
·  with fixed bars
 F23H 7/04
·  ·  in parallel disposition
 F23H 7/06
·  with movable bars disposed parallel to direction of fuel feeding
 F23H 7/08
·  ·  reciprocating along their axes
 F23H 7/10
·  ·  rocking about their axes
 F23H 7/12
·  with movable bars disposed transversely to direction of fuel feeding
 F23H 7/14
·  ·  reciprocating along their axes
 F23H 7/16
·  ·  rocking about their axes
 F23H 7/18
·  ·  reciprocating in an upward direction
 F23H 9/00
Revolving grates; Rocking grates (F23H 7/00 takes precedence)
 F23H 9/02
·  Revolving cylindrical grates
 F23H 9/04
·  Grates rocked as a whole
 F23H 9/06
·  the bars being rocked about axes transverse to their lengths
 F23H 9/08
·  the bars being rocked about their longitudinal axes
 F23H 9/10
·  ·  and modified to move fuel along the grate
 F23H 9/12
·  the bars being vertically movable in a plane
 F23H 11/00
Travelling grates
 F23H 11/02
·  with the bars disposed on transverse bearers
 F23H 11/04
·  with the bars pivoted at one side
 F23H 11/06
·  with the bars movable relatively to one another
 F23H 11/08
·  with several individually-movable grate surfaces
 F23H 11/10
·  with special provision for supply of air from below and for regulating air supply
 F23H 11/12
·  inclined travelling grates; Stepped travelling grates
 F23H 11/14
·  serving as auxiliary grates
 F23H 11/16
·  for multi-layer stoking
 F23H 11/18
·  Details
 F23H 11/20
·  ·  Driving means
 F23H 11/22
·  ·  Moving fuel along grate; Cleaning of grate
 F23H 11/24
·  ·  Removal of ashes; Removal of clinker
 F23H 11/26
·  ·  ·  by dumping
 F23H 11/28
·  ·  Replaceable burning-surface
 F23H 13/00
Grates not covered by any preceding group
 F23H 13/02
·  Basket grates, e.g. with shaking arrangement
 F23H 13/04
·  Telescoping grates
 F23H 13/06
·  Dumping-grates
 F23H 13/08
·  Grates specially adapted for gas generators and also applicable to furnaces
 F23H 15/00
Cleaning arrangements for grates (not forming part of the grate F23J 1/00); Moving fuel along grate (rocking grates modified for moving fuel F23H 9/10; for travelling grates F23H 11/22)
 F23H 17/00
Details of grates
 F23H 17/02
·  End fittings on bars
 F23H 17/04
·  ·  of travelling grates
 F23H 17/06
·  Provision for vertical adjustment of grate
 F23H 17/08
·  Bearers; Frames; Spacers; Supports
 F23H 17/10
·  ·  Dead plates; Imperforate fuel supports
 F23H 17/12
·  Fire-bars