IPC Main Group
F22B 9/00 Steam boilers of fire-tube type, i.e. the flue gas from a combustion chamber outside the boiler body flowing through tubes built-in in the boiler body
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- STEAM GENERATION
- Subclass:
- METHODS OF STEAM GENERATION; STEAM BOILERS
4 direct subcodes
Child Classifications
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- F22B 9/02 the boiler body being disposed upright, e.g. above the combustion chamber
- F22B 9/1 the boiler body being disposed substantially horizontally, e.g. at the side of the combustion chamber
- F22B 9/16 the boiler body containing fire tubes disposed crosswise in inclined upward arrangement
- F22B 9/18 Component parts thereof; Accessories therefor, e.g. stay-bolt connections