发明授权
US06887070B1 Fired furnace operation and apparatus 失效
烧炉操作及仪器

Fired furnace operation and apparatus
摘要:
A method and apparatus for continuing the operation of a fuel fired furnace when the air supply from the blower to the furnace is interrupted by employing a combination of a ventilator and drop door, the ventilator having a power source independent of the blower.
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