Fire-tube boiler
Patent 5558046 Issued on September 24, 1996. Estimated Expiration Date: 
August 30, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
August 30, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3618572 3672839 3857367 Gas boiler, particularly for central heating Boiler for the combustion of liquid or gaseous fuels Fuel burning boiler Marine energy cell Vapor generator Transportable system for providing heat to flowing materials Water tube boiler Patent #: 5273002 InventorsAssigneeApplicationNo. 295693 filed on 08/30/1994US Classes:122/367.1HEAT TRANSMITTERExaminersPrimary: McMahon, MargueriteAttorney, Agent or FirmForeign Patent References
International ClassesF22B 007/12F22B 037/06 AbstractA fire-tube boiler which is suitable for operation with powdered ash-containing fuels and automatically maintains itself clean in operation, has inlet openings, widening in trumpet shape, of flue tubes in the wall which separates the boiler drum from a reversing chamber. The fire tube is so dimensioned that, with due consideration of the boiler capacity, the flue gases at the outlet from the fire tube are cooled by a safety margin to below the ash-softening point of the corresponding fuel. The number and inside diameter of the flue tubes are so dimensioned that a dynamic pressure which is not less than 40 Pa is established in them. A blast tube which blows approximately tangentially over the partition wall is arranged on the reversing chamber in order to keep the inlet openings free of deposits of ash.Other References
| |
