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专利名称：A water heater and a method of operating
same
发明人：PATRICK PUSSELL申请号：AU2006292006申请日：20060801公开号：AU2006292006B2公开日：20100923
摘要：A water heater (10) including a tank (12), a burner (26) and a heated gas outletduct (40). The tank (12) has a substantially central flue (14) having an outlet (24)
substantially adjacent the top (20) of the tank (12). The tank (12) is adapted for mountingwith the flue (14) substantially vertically. The burner (26) is located beneath the tank (12).The burner (26) has an air inlet (32) and a pilot flame and is adapted to a burn a fuel todischarge heated gases up through the flue (14). The heated gas outlet duct (40) is ofsubstantially unrestricted cross-section and has an upper, first end (42) in gascommunication with the flue outlet (24) and a second, lower end (46) in gas
communication with atmosphere. When only the pilot flame is burning, the heated gasoutlet duct (40) is adapted to restrict the air drawn into the flue (14) via the air inlet (32)to the minimum amount required to maintain the pilot flame alight.
申请人：DUX MANUFACTURING LIMITED
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