Systems for controlling combustion (regulating fuel supply F23N1/00, regulating air supply or draught F23N3/00)

Child Classifications

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• F23N 5/003 +1 CPC CPC only CPC only
• F23N 5/02 using devices responsive to thermal changes or to thermal expansion of a medium +3 CPC IPC+CPC Available in IPC and CPC
• F23N 5/16 using noise-sensitive detectors +1 CPC IPC+CPC Available in IPC and CPC
• F23N 5/18 using detectors sensitive to rate of flow of air or fuel +5 CPC IPC+CPC Available in IPC and CPC
• F23N 5/20 with a time program acting through electrical means, e.g. using time-delay relays +2 CPC IPC+CPC Available in IPC and CPC
• F23N 5/22 with a time program acting through mechanical means, e.g. using cams IPC+CPC Available in IPC and CPC
• F23N 5/24 Preventing development of abnormal or undesired conditions, i.e. safety arrangements (F23N5/02 - F23N5/18 take precedence) +3 CPC IPC+CPC Available in IPC and CPC
• F23N 5/26 Details +1 CPC IPC+CPC Available in IPC and CPC