F23L - CPC Classification

• F23L1/00 » Passages or apertures for delivering primary air for combustion 85
• F23L11/00 » Arrangements of valves or dampers after the fire 35
• F23L13/00 » Construction of valves or dampers for controlling air supply or draught 30
• F23L15/00 » Heating of air supplied for combustion 80
• F23L17/00 » Inducing draught 12
• F23L2700/00 » Installations for increasing draught in chimneys; Specific draught control devices for locomotives 0
• F23L2900/00 » Special arrangements for supplying or treating air or oxidant for combustion; Injecting inert gas, water or steam into the combustion chamber 5
• F23L3/00 » Arrangements of valves or dampers before the fire 49
• F23L5/00 » Blast-producing apparatus before the fire 4
• F23L7/00 » Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam 132
• F23L9/00 » Passages or apertures for delivering secondary air for completing combustion of fuel 60
• F23L99/00 » Subject matter not provided for in other groups of this subclass 2