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公开(公告)号：US11248786B2
公开(公告)日：2022-02-15
申请号：US16728548
申请日：2019-12-27
发明人： Douglas W. Karkow , Joseph Colannino , James K. Dansie , Jesse Dumas , Donald Kendrick , Christopher A. Wiklof
摘要： A method for a combustion system includes outputting fuel from an adjustable-position fuel nozzle onto a perforated flame holder, the fuel being directed for mixture with an oxidant en route to the perforated flame holder. A combustion reaction of the fuel and the oxidant is supported within the perforated flame holder. A position of the adjustable-position fuel nozzle may be changed relative to the flame holder. A first flow of fuel may be output when the adjustable position fuel nozzle is in an extended state, and a second flow of fuel may be output when the adjustable-position fuel nozzle is in a retracted state.
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公开(公告)号：US10823401B2
公开(公告)日：2020-11-03
申请号：US16137339
申请日：2018-09-20
IPC分类号： F23D14/14
摘要： A combustion system such as a furnace or boiler includes a non-planar perforated flame holder configured to hold a combustion reaction.
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公开(公告)号：US10801723B2
公开(公告)日：2020-10-13
申请号：US15549957
申请日：2016-02-16
摘要： Embodiments disclosed herein are directed to devices and methods for improving operation of a combustion system. According to various embodiments disclosed herein, a prefabricated integrated combustion assembly is disclosed that may be installed into a combustion chamber of a combustion system. The combustion system may be a new combustion system that is being manufactured or a conventional combustion system that is being retrofitted.
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公开(公告)号：US10760784B2
公开(公告)日：2020-09-01
申请号：US15823419
申请日：2017-11-27
发明人： Douglas W. Karkow , Joseph Colannino , Igor A. Krichtafovitch , Robert E. Breidenthal , Christopher A. Wiklof
IPC分类号： F23C5/08 , F23D14/14 , F23D14/20 , F23D14/74 , F23M5/02 , F23C99/00 , F23D14/70 , F23D14/84 , F23D23/00
摘要： A perforated flame holder and burner including a perforated flame holder provides reduced oxides of nitrogen (NOx) during operation. The perforated flame holder includes a pattern of elongated apertures extending between a proximal and a distal surface of the flame holder relative to a fuel nozzle. The perforated flame holder can provide a significantly reduced flame height while maintaining heat output from the burner.
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公开(公告)号：US10578301B2
公开(公告)日：2020-03-03
申请号：US15663458
申请日：2017-07-28
发明人： Douglas W. Karkow , Joseph Colannino , James K. Dansie , Jesse Dumas , Donald Kendrick , Christopher A. Wiklof
摘要： A combustion system includes a perforated flame holder, an oxidant source, and an adjustable fuel nozzle. The oxidant source outputs oxidant. The adjustable fuel nozzle outputs fuel onto the perforated flame holder. The perforated flame holder supports a combustion reaction of the fuel and oxidant within the perforated flame holder. The position of the adjustable nozzle relative to the perforated flame holder can be adjusted to achieve selected characteristics of the combustion reaction within the perforated flame holder.
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