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公开(公告)号：US20180017249A1
公开(公告)日：2018-01-18
申请号：US15663458
申请日：2017-07-28
Applicant: CLEARSIGN COMBUSTION CORPORATION
Inventor： DOUGLAS W. KARKOW , JOSEPH COLANNINO , JAMES K. DANSIE , JESSE DUMAS , DONALD KENDRICK , CHRISTOPHER A. WIKLOF
CPC classification number: F23D11/443 , F23D9/00 , F23D11/38 , F23D14/14 , F23D14/26 , F23D14/72 , F23N5/025 , F23N5/245
Abstract: 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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公开(公告)号：US20170307212A1
公开(公告)日：2017-10-26
申请号：US15498124
申请日：2017-04-26
Applicant: CLEARSIGN COMBUSTION CORPORATION
Inventor： DONALD KENDRICK
CPC classification number: F23D14/02 , F23D14/14 , F23D14/16 , F23D14/58 , F23D14/60 , F23N5/123 , F23N5/203 , F23N2021/00 , F23N2027/10
Abstract: A fuel nozzle assembly includes one or more tapered fuel nozzles. Each tapered fuel nozzle includes an acute trailing edge or tip at a top portion of the fuel nozzle. One or more fuel orifices are arranged proximate the acute trailing edge or tip. A tapered fuel nozzle having a toroidal airfoil structure includes a fuel channel to distribute a fuel to the fuel orifice(s). The fuel nozzle assembly may be provided as part of a burner system, including a perforated flame holder, and associated method, in which the fuel nozzle assembly is oriented to direct fuel form the fuel orifices toward the perforated flame holder.
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公开(公告)号：US20200056781A1
公开(公告)日：2020-02-20
申请号：US16557574
申请日：2019-08-30
Applicant: ClearSign Combustion Corporation
Inventor： DONALD KENDRICK , CHRISTOPHER A. WIKLOF
Abstract: A combustion system supports a swirl-stabilized preheating flame with a preheating fuel and an oxidant. The combustion system preheats a perforated flame holder with the preheating flame. After the perforated flame holder has been preheated to the threshold temperature, the combustion system outputs a primary fuel. The perforated flame holder receives a mixture of the primary fuel and the oxidant supports a combustion reaction of the primary fuel and the oxidant.
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公开(公告)号：US20190107331A1
公开(公告)日：2019-04-11
申请号：US16166509
申请日：2018-10-22
Applicant: CLEARSIGN COMBUSTION CORPORATION
Inventor： DONALD KENDRICK , JAMES K. DANSIE , DOUGLAS W. KARKOW , CHRISTOPHER A. WIKLOF
Abstract: A combustion system includes a fuel and oxidant source and a flame holder. The flame holder includes a plurality of discrete slats arranged in parallel defining combustion channels between adjacent slats. The fuel and oxidant source outputs fuel and oxidant into the combustion channels. The flame holder holds a combustion reaction of the fuel and oxidant in the combustion channels.
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公开(公告)号：US20190011123A1
公开(公告)日：2019-01-10
申请号：US16033854
申请日：2018-07-12
Applicant: ClearSign Combustion Corporation
Inventor： JAMES K. DANSIE , DOUGLAS W. KARKOW , JESSE DUMAS , DONALD KENDRICK , SUNNY KARNANI , CHRISTOPHER A. WIKLOF
Abstract: A combustion system includes a fuel and oxidant source that outputs fuel and oxidant, a first perforated flame holder, and a second perforated flame holder separated from the first perforated flame holder by a gap. The first and second perforated flame holders sustain a combustion reaction of the fuel and oxidant within the first and second perforated flame holders.
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Patent Agency Ranking
公开(公告)号：US20210310650A9
公开(公告)日：2021-10-07
申请号：US16279032
申请日：2019-02-19
Applicant: ClearSign Combustion Corporation
Inventor： DOUGLAS W. KARKOW , DONALD KENDRICK , JOSEPH COLANNINO , JESSE DUMAS , JONATHAN P. DEES , JAMES K. DANSIE , CHRISTOPHER A. WIKLOF
Abstract: A furnace includes a perforated flame holder formed from an array of tiles. The perforated flame holder is stabilized by a support member extending between at least adjacent tiles. Elongated support members may be positioned to extend through each of the tiles in a respective column of the array of tiles.
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公开(公告)号：US20200072467A1
公开(公告)日：2020-03-05
申请号：US16552151
申请日：2019-08-27
Applicant: ClearSign Combustion Corporation
Inventor： DONALD KENDRICK , CHRISTOPHER A. WIKLOF
Abstract: A trapped vortex combustor includes a refractory combustor body defining a combustion volume aligned to receive an air and fuel mixture from an air and fuel source. The trapped vortex combustor includes a trapped vortex channel arranged circumferential to a portion of the combustion volume and/or arranged at or adjacent to a center of the combustion volume. The trapped vortex channel is configured to hold a trapped vortex combustion reaction to provide ignition to the air and fuel mixture. The trapped vortex combustor includes a center body supported near or within the combustion volume.
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公开(公告)号：US20190137096A1
公开(公告)日：2019-05-09
申请号：US16242373
申请日：2019-01-08
Applicant: ClearSign Combustion Corporation
Inventor： DONALD KENDRICK , DOUGLAS W. KARKOW , JAMES DANSIE , MATT HOSIE , CHRISTOPHER A. WIKLOF
IPC: F23C99/00 , F23D14/84 , F23D14/74 , F27D11/06 , F23N1/00 , F23N1/02 , F23N5/00 , F23C6/04 , F23C9/06 , F23D14/26 , F23D11/02 , F23D11/38 , F23L7/00 , F23D14/02 , F23D14/24 , F23N5/26 , F23N5/10 , F23D14/14 , F23D11/40 , F23D11/44 , F23D11/42
Abstract: In a fuel and oxidant combustion system, a flame holder support structure includes a heating element that receives electrical energy from an electrical power source. The heating element is raised to an auto-ignition temperature of a fuel and oxidant mixture directed, along an axis proximate the flame holder support structure, to a flame holder for combustion thereof.
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公开(公告)号：US20160238242A1
公开(公告)日：2016-08-18
申请号：US15047557
申请日：2016-02-18
Applicant: ClearSign Combustion Corporation
Inventor： DOUGLAS W. KARKOW , JOSEPH COLANNINO , ROBERTO RUIZ , JESSE DUMAS , JAMES K. DANSIE , DONALD KENDRICK , NICHOLAS S. BROMER , CHRISTOPHER A. WIKLOF
CPC classification number: F23D14/26 , F23D14/04 , F23D14/14 , F23D14/70 , F23D14/74 , F23D14/84 , F23D2209/20 , F23M9/06
Abstract: A combustion system includes a fuel and oxidant source, a perforated flame holder, and a support structure that supports the perforated flame holder at a selected distance from the fuel and oxidant source. The fuel and oxidant source outputs fuel and oxidant onto the perforated flame holder. The perforated flame holder receives the fuel and oxidant and sustains a combustion reaction of the fuel and oxidant within the perforated flame holder.
Abstract translation: 燃烧系统包括燃料和氧化剂源，穿孔火焰保持器和支撑结构，其支撑来自燃料和氧化剂源的选定距离处的穿孔火焰保持器。 燃料和氧化剂源将燃料和氧化剂输出到穿孔火焰支架上。 穿孔火焰保持器接收燃料和氧化剂，并维持燃烧器和氧化剂在穿孔火焰保持器内的燃烧反应。
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公开(公告)号：US20190368723A1
公开(公告)日：2019-12-05
申请号：US16444420
申请日：2019-06-18
Applicant: ClearSign Combustion Corporation
Inventor： DONALD KENDRICK , DOUGLAS W. KARKOW , VENKATESH IYER , JAMES K. DANSIE , JONATHAN BUCHER , AARON SALZBRUN , CHRISTOPHER J. LEE
Abstract: According to an embodiment, a fired heater includes a fuel and combustion air source configured to output fuel and combustion air into a combustion volume, the combustion volume including a combustion volume wall defining a lateral extent separate from an exterior volume. According to an embodiment, the fired heater includes a boiler heater and the combustion volume wall comprises a combustion pipe defining a lateral extent of the combustion volume, the combustion pipe being disposed to separate the combustion volume from a water and steam volume. The fired heater includes a mixing tube aligned to receive the fuel and combustion air from the fuel and combustion air source. The mixing tube may be separated from the combustion volume wall by a separation volume. The fired heater includes a bluff body flame holder aligned to receive a fuel and combustion air mixture from an outlet end of the mixing tube. The bluff body flame holder may be configured to hold a combustion reaction for heating a combustion volume wall. The combustion volume wall may include a combustion pipe. The combustion pipe may be configured to heat the water in the water and steam volume.
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