for reducing temperature in combustion chamber, e.g. for protecting walls of combustion chamber

Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber > for reducing temperature in combustion chamber, e.g. for protecting walls of combustion chamber

Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber (fluidised bed combustion apparatus with means for recirculation of particles entrained from the bed F23C10/02; fluidised bed combustion apparatus with devices for removal and partial reintroduction of material from the bed F23C10/26) > for reducing temperature in combustion chamber, e.g. for protecting walls of combustion chamber