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    CONTROL SYSTEM FOR A BURNER WITH PERFORATED FLAME HOLDER
    22.
    发明申请
    CONTROL SYSTEM FOR A BURNER WITH PERFORATED FLAME HOLDER 审中-公开

    公开(公告)号：WO2019018675A8

    公开(公告)日：2019-01-24

    申请号：PCT/US2018/042935

    申请日：2018-07-19

    Applicant: CLEARSIGN COMBUSTION CORPORATION

    Inventor： KARKOW, Douglas W. ,  KENDRICK, Donald ,  DANSIE, James K. ,  WIKLOF, Christopher A.

    IPC: F23D14/26 ,  F23D14/58 ,  F23D14/32

    Abstract: A combustion system includes a perforated flame holder, a preheating fuel distributor, a main fuel distributor, an oxidant source, an array of sensors, and a controller. The oxidant source outputs an oxidant. The preheating fuel distributor supports a preheating flame configured to preheat the perforated flame holder by outputting a preheating fuel when the combustion system is in a preheating state. The main fuel source outputs a main fuel in the standard operating state. The perforated flame holder is configured to support a combustion reaction of the main fuel and the oxidant in the standard operating state. The sensors are configured to sense parameters of the preheating flame and the perforated flame holder and to output sensor signals to the controller. The controller executes software instructions that include adjusting the flow of the main fuel, the preheating fuel, and the oxidant responsive to the sensor signals.

    FLAME HOLDER BURNER PILOT
    23.
    发明申请
    FLAME HOLDER BURNER PILOT 审中-公开

    公开(公告)号：WO2018236762A1

    公开(公告)日：2018-12-27

    申请号：PCT/US2018/038106

    申请日：2018-06-18

    Applicant: CLEARSIGN COMBUSTION CORPORATION

    Inventor： CARLISLE, Tommy

    IPC: F23D14/26 ,  F23D14/58

    Abstract: A combustion system includes a flame holder with a plurality of perforations extending through between first and second faces of the flame holder. A main fuel nozzle is configured to emit a fuel stream toward the first face of the flame holder and support a combustion reaction substantially between the first and second faces. One or more pilot nozzles are positioned over the second face of the flame holder and configured to emit pilot fuel streams along respective pilot axes lying parallel to the second face. During periods in which the combustion reaction is unintentionally extinguished, pilot flames supported by the one or more pilot nozzles heat respective portions of the flame holder.

    FUEL NOZZLE WITH AUGMENTED FUEL/AIR MIXING
    25.
    发明申请
    FUEL NOZZLE WITH AUGMENTED FUEL/AIR MIXING 审中-公开

    公开(公告)号：WO2018160869A1

    公开(公告)日：2018-09-07

    申请号：PCT/US2018/020503

    申请日：2018-03-01

    Applicant: CLEARSIGN COMBUSTION CORPORATION

    Inventor： KENDRICK, Donald

    IPC: F23D14/26 ,  F23D14/76 ,  F23D14/32 ,  F23D14/70

    Abstract: A combustion system includes a perforated flame holder and a preheating flame holder. During a preheating state, a preheating fuel nozzle outputs a preheating fuel stream onto the preheating flame holder and the preheating flame holder holds a preheating flame supported by the preheating fuel. The preheating flame heats the perforated flame holder to a threshold temperature. After the perforated flame holder has reached the threshold temperature, a fuel nozzle outputs a plurality of fuel streams including a fuel toward the perforated flame holder with a trajectory selected to entrain an oxidant with the fuel streams. The perforated flame holder supports a combustion reaction of the fuel and the oxidant.

    PLASMA PILOT
    27.
    发明申请
    PLASMA PILOT 审中-公开
    等离子试验

    公开(公告)号：WO2018085152A1

    公开(公告)日：2018-05-11

    申请号：PCT/US2017/058848

    申请日：2017-10-27

    Applicant: CLEARSIGN COMBUSTION CORPORATION

    Inventor： KARNANI, Sunny ,  DANSIE, James K. ,  PLEIS, Jackson M.

    IPC: F23D14/22 ,  F23D14/32 ,  F23D14/58

    Abstract: A combustion system includes a perforated flame holder, a fuel nozzle configured to output fuel toward the perforated flame holder, and a plasma ignition device configured to output a plasma during a preheating state of the combustion system and to cease outputting the plasma to transition from the preheating state to the standard operating state. In the preheating state the plasma ignition device causes a preheating flame of the fuel stream at a position between the fuel nozzle and the perforated flame holder. In the standard operating condition, the plasma is not present and the fuel stream impinges on the perforated flame holder. The perforated flame holder supports a combustion reaction of the fuel stream within the perforated flame holder when in the standard operating state.

    Abstract translation: 燃烧系统包括穿孔火焰保持器，构造成朝向穿孔火焰保持器输出燃料的燃料喷嘴以及构造成在燃烧系统的预热状态期间输出等离子体的等离子体点火装置， 停止输出等离子体以从预热状态转换到标准操作状态。 在预热状态下，等离子体点火装置在燃料喷嘴和多孔火焰保持器之间的位置处引起燃料流的预热火焰。 在标准操作条件下，等离子体不存在，燃料流撞击穿孔火焰支架。 当处于标准操作状态时，穿孔火焰保持器支持穿孔火焰保持器内的燃料流的燃烧反应。

    FLAME HOLDERS WITH FUEL AND OXIDANT RECIRCULATION, COMBUSTION SYSTEMS INCLUDING SUCH FLAME HOLDERS, AND RELATED METHODS
    29.
    发明申请
    FLAME HOLDERS WITH FUEL AND OXIDANT RECIRCULATION, COMBUSTION SYSTEMS INCLUDING SUCH FLAME HOLDERS, AND RELATED METHODS 审中-公开
    具有燃料和氧化物回收的燃烧器，包括这种火焰保持器的燃烧系统及相关方法

    公开(公告)号：WO2016105489A2

    公开(公告)日：2016-06-30

    申请号：PCT/US2015/000219

    申请日：2015-12-23

    Applicant: CLEARSIGN COMBUSTION CORPORATION

    Inventor： KARKOW, Douglas, Wayne ,  BREIDENTHAL, Robert, E. ,  WIKLOF, Christopher, A. ,  KENDRICK, Donald

    IPC: F23D14/46

    CPC classification number: F23D14/16 ,  F23D14/14 ,  F23D14/58 ,  F23D14/82

    Abstract: Embodiments disclosed herein include flame holders that may provide recirculated fuel flow therethrough, combustion systems that include such flame holders, and related methods. A fuel and/or fuel-oxidant mixture may pass through one or more openings in the flame holder and, after combustion, the resulting flame may be held at or near a surface of the flame holder including in the one or more openings. Generally, the configuration of the flame holders disclosed herein (e.g., the one or more openings of the flame holders) may recirculate or regulate (e.g., decrease and/or increase) the flow of fuel and/or oxidant therethrough, at least limit flame flashback, improve fuel/oxidant mixing, increase flame stability, regulate where the flame is located in the flame holder, improve the operational stability window of the combustion system, or combinations of the foregoing.

    Abstract translation: 本文公开的实施例包括可提供通过其中的再循环燃料流的火焰保持器，包括这种火焰保持器的燃烧系统以及相关方法。 燃料和/或燃料 - 氧化剂混合物可以通过火焰保持器中的一个或多个开口，并且在燃烧之后，所得到的火焰可以保持在包括在一个或多个开口中的火焰保持器的表面处或附近。 通常，本文公开的火焰保持器的构造（例如，火焰保持器的一个或多个开口）可以再循环或调节（例如，减少和/或增加）通过其中的燃料和/或氧化剂的流动，至少限制火焰 回火，改善燃料/氧化剂混合，增加火焰稳定性，调节火焰位于火焰保持器中的位置，改善燃烧系统的操作稳定性窗口或上述的组合。

    METHOD AND APPARATUS FOR EXTENDING FLAMMABILITY LIMITS IN A COMBUSTION REACTION
    30.
    发明申请
    METHOD AND APPARATUS FOR EXTENDING FLAMMABILITY LIMITS IN A COMBUSTION REACTION 审中-公开
    在燃烧反应中延长易燃性极限的方法和装置

    公开(公告)号：WO2015103436A1

    公开(公告)日：2015-07-09

    申请号：PCT/US2014/073086

    申请日：2014-12-31

    Applicant: CLEARSIGN COMBUSTION CORPORATION

    Inventor： COLANNINO, Joseph ,  DANSIE, James K ,  DUMAS, Jesse C.

    IPC: F23N1/00 ,  F23R3/28 ,  F23D14/26

    CPC classification number: F23C99/001 ,  F23N1/022 ,  F23N5/00 ,  F23N5/003

    Abstract: A method for controlling a combustion reaction includes introducing fuel and oxidizer into a combustion volume at a ratio that is outside a range defined by an upper flammability or stability limit and a lower flammability or stability limit of the fuel, and producing a modified range defined by a modified upper flammability or stability limit and a modified lower flammability or stability limit of the fuel, by applying an electric field across a flame supported by the fuel and oxidizer, the ratio falling within the modified range.

    Abstract translation: 用于控制燃烧反应的方法包括将燃料和氧化剂以超过燃烧的上部可燃性或稳定极限和较低的燃烧或稳定性极限所限定的范围的比例引入燃烧体积中，并且产生由 通过在由燃料和氧化剂支撑的火焰上施加电场，该比率落在修改的范围内，改变了燃料的上部可燃性或稳定性极限以及改进的较低的燃烧性或稳定性极限。

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