FI-MainGroup/Facet-Choice

  • F23L1/00
  • Passages or apertures for delivering primary air for combustion (baffles or deflectors in air inlets F23M 9/02) HB CC 3K023
  • F23L3/00
  • Arrangements of valves or dampers before the fire HB CC 3K023
  • F23L5/00
  • Blast-producing apparatus before the fire HB CC 3K023
  • F23L7/00
  • Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam HB CC 3K023
  • F23L9/00
  • Passages or apertures for delivering secondary air for completing combustion of fuel (baffles or deflectors in air inlets F23M 9/02) HB CC 3K023
  • F23L11/00
  • Arrangements of valves or dampers after the fire HB CC 3K023
  • F23L13/00
  • Construction of valves or dampers for controlling air supply or draught HB CC 3K023
  • F23L15/00
  • Heating of air supplied for combustion HB CC 3K023
  • F23L17/00
  • Inducing draught; Tops for chimneys or ventilating shafts; Terminals for flues HB CC 3K023
  • F23L99/00
  • Subject matter not provided for in other groups of this subclass [8] HB CC 3K023
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