|
F23L 1/00
|
Passages or apertures for delivering primary air for combustion |
|
F23L 1/02
|
Passages or apertures for delivering primary air for combustion by discharging the air below the fire |
|
F23L 3/00
|
Arrangements of valves or dampers before the fire |
|
F23L 5/00
|
Blast-producing apparatus before the fire |
|
F23L 5/02
|
Arrangements of fans or blowers |
|
F23L 5/04
|
Blast-producing apparatus before the fire by induction of air for combustion, e.g. using steam jet |
|
F23L 7/00
|
Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam |
|
F23L 9/00
|
Passages or apertures for delivering secondary air for completing combustion of fuel |
|
F23L 9/02
|
Passages or apertures for delivering secondary air for completing combustion of fuel by discharging the air above the fire |
|
F23L 9/04
|
Passages or apertures for delivering secondary air for completing combustion of fuel by discharging the air beyond the fire, i.e. nearer the smoke outlet |
|
F23L 9/06
|
Passages or apertures for delivering secondary air for completing combustion of fuel by discharging the air into the fire bed |
|
F23L 11/00
|
Arrangements of valves or dampers after the fire |
|
F23L 11/02
|
Arrangements of valves or dampers after the fire for reducing draught by admission of air to flues |
|
F23L 13/00
|
Construction of valves or dampers for controlling air supply or draught |
|
F23L 13/02
|
Construction of valves or dampers for controlling air supply or draught pivoted about a single axis but having no other movement |
|
F23L 13/04
|
Construction of valves or dampers for controlling air supply or draught pivoted about a single axis but having no other movement with axis perpendicular to face |
|
F23L 13/06
|
Construction of valves or dampers for controlling air supply or draught slidable only |
|
F23L 13/08
|
Construction of valves or dampers for controlling air supply or draught operating as a venetian blind |
|
F23L 13/10
|
Construction of valves or dampers for controlling air supply or draught having a compound movement involving both sliding and pivoting |
|
F23L 15/00
|
Heating of air supplied for combustion |
|
F23L 15/02
|
Arrangements of regenerators |
|
F23L 15/04
|
Arrangements of recuperators |
|
F23L 17/00
|
Inducing draught; Tops for chimneys or ventilating shafts; Terminals for flues |
|
F23L 17/02
|
Tops for chimneys or ventilating shafts; Terminals for flues |
|
F23L 17/04
|
Balanced-flue arrangements, i.e. devices which combine air inlet to combustion unit with smoke outlet |
|
F23L 17/06
|
Tops for chimneys or ventilating shafts; Terminals for flues branched; T-headed |
|
F23L 17/08
|
Tops for chimneys or ventilating shafts; Terminals for flues with coaxial cones or louvres |
|
F23L 17/10
|
Tops for chimneys or ventilating shafts; Terminals for flues wherein the top moves as a whole |
|
F23L 17/12
|
Devices for fastening the top or terminal to chimney, shaft, or flue |
|
F23L 17/14
|
Draining devices |
|
F23L 17/16
|
Induction apparatus, e.g. steam jet, acting on combustion products beyond the fire |
|
F23L 99/00
|
Subject matter not provided for in other groups of this subclass |
