公开(公告)号：US09828288B2

公开(公告)日：2017-11-28

申请号：US14823313

申请日：2015-08-11

Applicant: ClearSign Combustion Corporation

Inventor： Joseph Colannino ,  Douglas W. Karkow ,  Christopher A. Wiklof

IPC: C04B7/44 ,  F27B7/10 ,  F27B7/34 ,  F27B7/32 ,  C04B7/36 ,  C01G23/08

CPC classification number: C04B7/44 ,  C01G23/08 ,  C04B7/361 ,  C04B7/4438 ,  C04B7/4453 ,  F27B7/10 ,  F27B7/32 ,  F27B7/34 ,  Y02P40/121

Abstract: A rotary kiln includes a stationary fuel nozzle and a perforated flame holder positioned within an inclined rotating shell. The flame holder includes a plurality of perforations that collectively confine a combustion reaction of the burner to the flame holder to shift most heat transfer from the combustion reaction from radiation heat transfer to convective heat transfer.

公开(公告)号：US09797595B2

公开(公告)日：2017-10-24

申请号：US14762155

申请日：2014-02-14

Applicant: ClearSign Combustion Corporation

Inventor： Douglas W. Karkow ,  Robert E. Breidenthal ,  Joseph Colannino ,  Christopher A. Wiklof

IPC: F23D14/14 ,  F23C99/00 ,  F23N5/26 ,  F27D11/06 ,  F23D14/24 ,  F23D14/84 ,  F23N5/00 ,  F23N1/00 ,  F23D14/02 ,  F23D14/74 ,  F23D11/44 ,  F23D11/02 ,  F23D11/38 ,  F23D11/40 ,  F23L7/00 ,  F23C6/04 ,  F23C9/06 ,  F23D14/26 ,  F23N1/02 ,  F23D11/42

CPC classification number: F23C99/001 ,  F23C6/042 ,  F23C9/06 ,  F23C2201/00 ,  F23C2900/00 ,  F23D11/02 ,  F23D11/38 ,  F23D11/383 ,  F23D11/406 ,  F23D11/42 ,  F23D11/446 ,  F23D11/448 ,  F23D14/02 ,  F23D14/14 ,  F23D14/145 ,  F23D14/24 ,  F23D14/26 ,  F23D14/74 ,  F23D14/84 ,  F23D2203/1012 ,  F23D2203/102 ,  F23D2203/1023 ,  F23D2203/104 ,  F23D2203/105 ,  F23D2207/00 ,  F23D2208/10 ,  F23L7/007 ,  F23N1/00 ,  F23N1/002 ,  F23N1/02 ,  F23N5/00 ,  F23N5/10 ,  F23N5/265 ,  F23N2021/00 ,  F23N2027/22 ,  F23N2900/00 ,  F27D11/06 ,  Y02T50/677

Abstract: A combustion system such as a furnace or boiler includes a perforated reaction holder configured to hold a combustion reaction that produces very low oxides of nitrogen (NOx).

公开(公告)号：US09696034B2

公开(公告)日：2017-07-04

申请号：US14192309

申请日：2014-02-27

Applicant: CLEARSIGN COMBUSTION CORPORATION

Inventor： Igor A. Krichtafovitch ,  Joseph Colannino

IPC: F23N5/12 ,  F23D14/84 ,  F23N5/00 ,  F23C99/00 ,  F23D11/40 ,  F23D11/32

CPC classification number: F23N5/00 ,  F23C99/001 ,  F23D11/406 ,  F23D14/84

Abstract: In an embodiment, a combustion system includes a burner, at least one charging electrode, flame anchoring electrode(s), and at least one voltage power supply. The burner is configured to discharge fuel into a combustion volume in which the fuel and an oxidizer are ignited to generate a flame. The charging electrode is positioned proximate to the flame. The charging electrode provides charges to the flame to generate a charged flame. The flame anchoring electrode(s) are disposed adjacent to the burner and proximate to a base portion of the charged flame. The voltage power supply is electrically coupled to each of the flame anchoring electrode(s) and the charging electrode. The at least one voltage power supply applies one or more electrical potentials to each of the flame anchoring electrode(s) so that the charged flame is anchored at a predetermined location.

公开(公告)号：US20170051913A1

公开(公告)日：2017-02-23

申请号：US15202844

申请日：2016-07-06

Applicant: ClearSign Combustion Corporation

Inventor： JOSEPH COLANNINO ,  DOUGLAS W. KARKOW ,  CHRISTOPHER A. WIKLOF

IPC: F23C9/08 ,  F23N3/00

CPC classification number: F23C9/08 ,  F23D2203/104 ,  F23J2211/00 ,  F23N3/002 ,  F27D2019/0031

Abstract: A combustion system includes a perforated flame holder positioned within a combustion volume, a nozzle configured to emit a fuel stream toward the perforated flame holder, an oxidant source configured to introduce an oxidizer fluid into the combustion volume, and a flue gas recirculation (FGR) channel having a first end in fluid communication with the combustion volume downstream of the perforated flame holder and a second end in fluid communication with the oxidant source. A controller is configured to hold a combustion parameter within a selected range of values by regulating a quantity of flue gas flowing in the FGR channel.

Abstract translation: 燃烧系统包括定位在燃烧体积内的穿孔火焰保持器，被配置为向穿孔火焰保持器发射燃料流的喷嘴，被配置为将氧化剂流体引入燃烧体积的氧化剂源，以及烟道气再循环（FGR） 通道具有与穿孔火焰保持器下游的燃烧体流体连通的第一端和与氧化剂源流体连通的第二端。 控制器被配置为通过调节在FGR通道中流动的烟道气量来将燃烧参数保持在所选值范围内。

公开(公告)号：US20160348900A1

公开(公告)日：2016-12-01

申请号：US15235517

申请日：2016-08-12

Applicant: CLEARSIGN COMBUSTION CORPORATION

Inventor： JOSEPH COLANNINO ,  DOUGLAS W. KARKOW ,  CHRISTOPHER A. WIKLOF

IPC: F23D14/14 ,  F23D14/70 ,  F23D14/04

CPC classification number: F23D14/70 ,  F23D14/14 ,  F23N5/022 ,  F23N2029/20

Abstract: A method of operation of a burner system includes introducing a fuel stream into a perforated flame holder, combusting the fuel stream, with a majority of the combustion occurring between an input face and an output face of the flame holder, and producing a heat output from the combustion of at least 1.5 kBTU/H/in2.

Abstract translation: 燃烧器系统的操作方法包括将燃料流引入穿孔火焰保持器中，燃烧燃料流，大部分燃烧发生在火焰保持器的输入面和输出面之间，并产生从 燃烧至少1.5 kBTU / H / in2。

公开(公告)号：US20160245507A1

公开(公告)日：2016-08-25

申请号：US15050177

申请日：2016-02-22

Applicant: ClearSign Combustion Corporation

Inventor： David B. GOODSON ,  Tracy A. PREVO ,  Joseph COLANNINO ,  Robert E. BREIDENTHAL ,  Igor A. KRICHTAFOVITCH ,  Christopher A. WIKLOF

IPC: F23C99/00 ,  F23N5/00 ,  F23C1/00

CPC classification number: F23C99/001 ,  B01D46/0032 ,  B01D53/323 ,  F01N3/0892 ,  F01N2240/04 ,  F23B2900/00006 ,  F23C1/02 ,  F23C5/08 ,  F23C6/047 ,  F23C9/00 ,  F23C2201/301 ,  F23G5/12 ,  F23G5/442 ,  F23G2204/103 ,  F23J2217/102

Abstract: According to embodiments, a co-fired or multiple fuel combustion system is configured to apply an electric field to a combustion region corresponding to a second fuel that normally suffers from poor combustion and/or high sooting. Application of an AC voltage to the combustion region was found to increase the extent of combustion and significantly reduce soot evolved from the second fuel.

Abstract translation: 根据实施例，共燃或多燃料燃烧系统被配置为将电场施加到对应于通常遭受不良燃烧和/或高烟炱的第二燃料的燃烧区域。 发现将AC电压施加到燃烧区域以增加燃烧程度，并显着减少从第二燃料放出的烟灰。

公开(公告)号：US20160238240A1

公开(公告)日：2016-08-18

申请号：US15044980

申请日：2016-02-16

Applicant: ClearSign Combustion Corporation

Inventor： JOSEPH COLANNINO ,  DOUGLAS W. KARKOW ,  CHRISTOPHER A. WIKLOF

IPC: F23D14/14 ,  F23D14/84 ,  F23Q9/00 ,  F23D14/48

CPC classification number: F23D14/14 ,  F23D14/48 ,  F23D14/70 ,  F23D14/84 ,  F23D2203/102 ,  F23D2207/00 ,  F23D2900/21003

Abstract: A duct burner includes a perforated flame holder and a fuel header that is spaced away from the perforated flame holder and has a plurality of fuel nozzles. Each of the fuel nozzles is arranged to emit a fuel stream toward a respective portion of the perforated flame holder. A combustion reaction supported by the fuel streams is held within a plurality of apertures extending through the perforated flame holder.

Abstract translation: 管道燃烧器包括穿孔火焰保持器和与穿孔火焰保持器间隔开并具有多个燃料喷嘴的燃料集管。 每个燃料喷嘴被布置成朝向穿孔火焰保持器的相应部分发射燃料流。 由燃料流支撑的燃烧反应被保持在延伸穿过穿孔火焰保持器的多个孔内。

公开(公告)号：US20160186995A1

公开(公告)日：2016-06-30

申请号：US15063945

申请日：2016-03-08

Applicant: ClearSign Combustion Corporation

Inventor： ROBERT E. BREIDENTHAL ,  VINCENZO CASASANTA, III ,  JOSEPH COLANNINO ,  DAVID B. GOODSON ,  TRACY A. PREVO ,  RICHARD F. RUTKOWSKI ,  CHRISTOPHER A. WIKLOF

IPC: F23N5/16 ,  F23C99/00

CPC classification number: F23N5/16 ,  F23B1/00 ,  F23C99/001 ,  F23N3/00

Abstract: A system is configured to apply a voltage, charge, and/or an electric field to a combustion reaction responsive to acoustic feedback from the combustion reaction.

Abstract translation: 系统被配置为响应于来自燃烧反应的声反馈将电压，电荷和/或电场施加到燃烧反应。

公开(公告)号：US09377189B2

公开(公告)日：2016-06-28

申请号：US14187077

申请日：2014-02-21

Applicant: ClearSign Combustion Corporation

Inventor： Roberto Ruiz ,  Joseph Colannino ,  Igor A. Krichtafovitch ,  Christopher A. Wiklof

IPC: F23N5/00 ,  F23C15/00 ,  F23C5/00 ,  F23C99/00

CPC classification number: F23C99/001 ,  F23C5/00 ,  F23C15/00 ,  F23C99/00 ,  F23N5/20

Abstract: An oscillating combustor can support a time-sequenced combustion reaction having rich and lean phases by applying a variable voltage charge to a fuel stream or flame that flows adjacent to a conductive or semiconductive flame holder held in electrical continuity with an activation voltage.

Abstract translation: 振荡式燃烧器可以通过向与保持与激活电压电连续的导电或半导体火焰保持器相邻流动的燃料流或火焰施加可变电压电荷来支持具有富相和贫相的时间序列燃烧反应。

公开(公告)号：US09366427B2

公开(公告)日：2016-06-14

申请号：US13850936

申请日：2013-03-26

Applicant: ClearSign Combustion Corporation

Inventor： Tim W. Sonnichsen ,  Joseph Colannino ,  David B. Goodson ,  Tracy A. Prevo ,  Christopher A. Wiklof

IPC: F23C99/00 ,  F23K3/18 ,  F23B60/02 ,  F23G5/50 ,  F23B90/00 ,  F23B30/00 ,  F23G7/10 ,  F23G7/12

CPC classification number: F23C99/001 ,  F23B7/00 ,  F23B60/02 ,  F23B90/00 ,  F23B2900/00006 ,  F23G5/50 ,  F23G7/10 ,  F23G7/12 ,  F23K3/18

Abstract: A solid fuel burner may include a system for electrodynamic homogenization. One or more electrodes may apply an electric field to burning solid fuel or a region proximate the burning solid fuel. The electric field causes mixing and homogenization of volatilized fractions of the solid fuel, combustion gases, and air. The improved mixing and homogenization may reduce emission of carbon monoxide (CO), reduce emission of oxides of nitrogen (NOx), reduce oxygen in flue gas, increase temperature of flue gas, and/or allow for a larger grate surface.

Abstract translation: 固体燃料燃烧器可以包括用于电动均匀化的系统。 一个或多个电极可以施加电场来燃烧固体燃料或靠近燃烧的固体燃料的区域。 电场导致固体燃料，燃烧气体和空气的挥发分数的混合和均化。 改进的混合和均化可以减少一氧化碳（CO）的排放，减少氮氧化物（NOx）的排放，减少烟道气中的氧气，增加烟气的温度和/或允许更大的炉排表面。