IPC 7 English version F23N-F23N 5/26

F23N-F23N00526

SECTION F – MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

F 23

COMBUSTION APPARATUS; COMBUSTION PROCESSES

F 23 N

REGULATING OR CONTROLLING COMBUSTION (control devices specially adapted for fluidised bed combustion apparatus F23C 10/28; condition responsive controls for regulating combustion in domestic stoves with open fires for solid fuel F24B 1/187)

Regulating fuel supply

conjointly with air supply

conjointly with air supply and with draught

conjointly with draught

conjointly with another medium, e.g. boiler water

and with air supply or draught

Regulating air supply or draught (conjointly with fuel supply F23N 1/00)

Regulating draught by direct pressure operation of single valves or dampers

by operation of single valves or dampers by temperature-sensitive elements

by conjoint operation of two or more valves or dampers (F23N 3/08 takes precedence)

by power-assisted systems

Systems for controlling combustion (F23N 1/00, F23N 3/00 take precedence)

using devices responsive to thermal changes or to thermal expansion of a medium

using bimetallic elements

using bellows; using diaphragms

using light-sensitive elements

using thermocouples

using ionisation-sensitive elements, i.e. flame rods

using thermo-sensitive resistors

using noise-sensitive detectors

using detectors sensitive to rate of flow of air or fuel

with a time programme acting through electrical means, e.g. using time-delay relays

with a time programme acting through mechanical means, e.g. using cams

Preventing development of abnormal or undesired conditions, i.e. safety arrangements (F23N 5/02 to F23N 5/18 take precedence)

Details