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.

 F23R
GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS (chemical aspects of gas production C06D 5/00; gas-turbine plants characterised by the arrangement of the combustion chamber in the plant F02C 3/00; arrangement of afterburners in jet-propulsion plants F02K 3/00; combustion chambers of rocket engine plants F02K 9/00; using such products for specific purposes, see the relevant classes for the purposes)
P:20 F23R 3/00
Continuous combustion chambers using liquid or gaseous fuel  [3]
 F23R 3/02
·  characterised by the air-flow or gas-flow configuration (reverse-flow combustion chambers F23R 3/00; cyclone or vortex type combustion chambers F23R 3/00)  [3]
 F23R 3/04
·  ·  Air inlet arrangements  [3]
 F23R 3/28
·  characterised by the fuel supply (burners F23D)  [3]
 F23R 3/30
·  ·  comprising fuel prevapourising devices  [3]
 F23R 3/34
·  ·  Feeding into different combustion zones  [3]
P:10 F23R 5/00
Continuous combustion chambers using solid or pulverulent fuel (fluidised bed combustion apparatus specially adapted for operation at superatmospheric pressures F23C 10/00)  [3]
P:0 F23R 7/00
Intermittent or explosive combustion chambers  [3]