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公开(公告)号：US20180259199A1
公开(公告)日：2018-09-13
申请号：US15457712
申请日：2017-03-13
CPC分类号： F24D19/1084 , F23D14/04 , F23L15/02 , F23L17/005 , F24H3/087 , F24H9/1881 , F24H9/2085
摘要： A fuel-fired heating appliance has two fuel flow paths to a burner, each actuatable to a closed state and to an open state. A heat exchanger is in fluid communication with an area proximate the burner. A controller executes the steps: (a) while the first fuel flow path is closed, opening the second flow path; (b) following ignition of fuel flowing from the second flow path, opening the first fuel flow path; and (c) following step (b), closing the second fuel flow path while opening the first fuel flow path.
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公开(公告)号：US20180202652A1
公开(公告)日：2018-07-19
申请号：US15406567
申请日：2017-01-13
申请人： Mickey E. Batson , Darryl J. Farley , Reza Khatami , Divakar Mantha , Tyson J. Cogburn , Nathan T. Whalen , Qian Zhang , Shawn A. Reed , Timothy J. Shellenberger
发明人： Mickey E. Batson , Darryl J. Farley , Reza Khatami , Divakar Mantha , Tyson J. Cogburn , Nathan T. Whalen , Qian Zhang , Shawn A. Reed , Timothy J. Shellenberger
CPC分类号： F23D14/02 , F23D2203/00 , F23D2206/00 , F23Q3/00
摘要： A fuel-fired heating appliance comprises a burner and a first housing adjacent the burner so that an interior of the first housing receives combustion gasses from combustion at the burner. A heat exchanger defines a second housing with an inlet proximate an outlet of the first housing so that the inlet of the second housing receives combustion gasses from the outlet of the first housing, and wherein the first and second housings attach at an interface. A barrier extends within, and across an interface between, the outlet of the first housing and the inlet of the second housing and defines a thermal resistance that inhibits heat transfer from the combustion gasses to the interface.
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