专利名称：A water heater and a method of operating
same
发明人：PATRICK PUSSELL申请号：AU2005299240申请日：20050916公开号：AU2005299240B2公开日：20100128
摘要：A water heater (10) including a tank (12) adapted for mounting with itslongitudinal axis substantially vertical and a duct (32) adapted for mounting with itslongitudinal axis substantially vertical. The duct (32) is positioned within the tank (12) andextends through at least most of the height of the tank (12). The duct (32) defines a firstvolume (34) within the duct interior and a second volume (36) between the duct exteriorand the tank interior. The first volume (34) being smaller than the second volume (36).The duct (32) has at least one upper opening (38) at or near the top of the duct (32) andat least one lower opening (40) at or near the bottom of the duct (32). The heater (10)also has a heating element (44) within, or forming all or part of, the duct (32). Theelement (44) extends at least substantially through the upper half of the duct (32). Theheater (10) also has an inlet (24) at or near the bottom of the tank (12) and an outlet (22)at or near the top of the tank (12). In use, energising the heater element (44) causeswater to flow from the first volume (34) to the second volume (36) through the upperopening(s) (38) and water to flow the second volume (36) to the first volume (34) throughthe lower opening(s) (40).
申请人：DUX MANUFACTURING LIMITED
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