| F | SK | MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING |
| F23 | KL | COMBUSTION APPARATUS; COMBUSTION PROCESSES |
| F23L | UKL | SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL (firebridges with means for feeding air or steam F23M 3/04; baffles or shields with air supply passages F23M 9/04); VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES |
| F23L 1/00 | HGR | Passages or apertures for delivering primary air for combustion (baffles or deflectors in air inlets F23M 9/02) [1, 2006.01] |
| F23L 1/02 | UGR1 | | . | by discharging the air below the fire [1, 2006.01] |
|
| F23L 3/00 | HGR | Arrangements of valves or dampers before the fire [1, 2006.01] |
| F23L 5/00 | HGR | Blast-producing apparatus before the fire [1, 2006.01] |
| F23L 5/02 | UGR1 | | . | Arrangements of fans or blowers [1, 2006.01] |
|
| F23L 5/04 | UGR1 | | . | by induction of air for combustion, e.g. using steam jet [1, 2006.01] |
|
| F23L 7/00 | HGR | Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam [1, 2006.01] |
| F23L 9/00 | HGR | Passages or apertures for delivering secondary air for completing combustion of fuel (baffles or deflectors in air inlets F23M 9/02) [1, 2006.01] |
| F23L 9/02 | UGR1 | | . | by discharging the air above the fire [1, 2006.01] |
|
| F23L 9/04 | UGR1 | | . | by discharging the air beyond the fire, i.e. nearer the smoke outlet [1, 2006.01] |
|
| F23L 9/06 | UGR1 | | . | by discharging the air into the fire bed [1, 2006.01] |
|
| F23L 11/00 | HGR | Arrangements of valves or dampers after the fire [1, 2006.01] |
| F23L 11/02 | UGR1 | | . | for reducing draught by admission of air to flues [1, 2006.01] |
|
| F23L 13/00 | HGR | Construction of valves or dampers for controlling air supply or draught [1, 2006.01] |
| F23L 13/02 | UGR1 | | . | pivoted about a single axis but having no other movement (formed as linked slats each pivoted about an axis F23L 13/08) [1, 2006.01] |
|
| F23L 13/04 | UGR2 | | . . | with axis perpendicular to face [1, 2006.01] |
|
| F23L 13/06 | UGR1 | | . | slidable only [1, 2006.01] |
|
| F23L 13/08 | UGR1 | | . | operating as a roller blind; operating as a venetian blind [1, 2006.01] |
|
| F23L 13/10 | UGR1 | | . | having a compound movement involving both sliding and pivoting [1, 2006.01] |
|
| F23L 15/00 | HGR | Heating of air supplied for combustion [1, 2006.01] |
| F23L 15/02 | UGR1 | | . | Arrangements of regenerators [1, 2006.01] |
|
| F23L 15/04 | UGR1 | | . | Arrangements of recuperators [1, 2006.01] |
|
| F23L 17/00 | HGR | Inducing draught; Tops for chimneys or ventilating shafts; Terminals for flues [1, 2006.01] |
| F23L 17/02 | UGR1 | | . | Tops for chimneys or ventilating shafts; Terminals for flues [1, 2006.01] |
|
| F23L 17/04 | UGR2 | | . . | Balanced-flue arrangements, i.e. devices which combine air inlet to combustion unit with smoke outlet [1, 2006.01] |
|
| F23L 17/06 | UGR2 | | . . | branched; T-headed [1, 2006.01] |
|
| F23L 17/08 | UGR2 | | . . | with coaxial cones or louvres [1, 2006.01] |
|
| F23L 17/10 | UGR2 | | . . | wherein the top moves as a whole [1, 2006.01] |
|
| F23L 17/12 | UGR2 | | . . | Devices for fastening the top or terminal to chimney, shaft, or flue [1, 2006.01] |
|
| F23L 17/14 | UGR2 | | . . | Draining devices [1, 2006.01] |
|
| F23L 17/16 | UGR1 | | . | Induction apparatus, e.g. steam jet, acting on combustion products beyond the fire [1, 2006.01] |
|
| F23L 99/00 | HGR | Subject matter not provided for in other groups of this subclass [2006.01] |