Steam boilers of furnace-tube type, i.e. the combustion of fuel being performed inside one or more furnace tubes built-in in the boiler body

Child Classifications

Navigate with arrow keys, Enter to open

• F22B 7/02 without auxiliary water tubes
• F22B 7/04 with auxiliary water tubes
• F22B 7/12 with auxiliary fire tubes; Arrangement of header boxes providing for return diversion of flue gas flow
• F22B 7/14 with both auxiliary water tubes and auxiliary fire tubes
• F22B 7/16 Component parts thereof; Accessories therefor, e.g. stay-bolt connections