Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber

Classification Context

Section:

MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

Class:

COMBUSTION APPARATUS; COMBUSTION PROCESSES

Subclass:

METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN AIR

Related Keywords

Child Classifications

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• F23C 9/06 for completing combustion
• F23C 9/08 for reducing temperature in combustion chamber, e.g. for protecting walls of combustion chamber