公开(公告)号：US10066835B2

公开(公告)日：2018-09-04

申请号：US15035465

申请日：2014-11-10

Applicant: ClearSign Combustion Corporation

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

IPC: F23Q9/10 ,  F23C5/08 ,  F23Q13/02 ,  F23D14/26 ,  F23C99/00 ,  F23N1/00 ,  F23C5/02 ,  F23D11/42 ,  F23D14/72 ,  F23N5/18 ,  F23Q9/08

Abstract: A combustion system includes an electrically actuated flame location control mechanism.

公开(公告)号：US20180202653A1

公开(公告)日：2018-07-19

申请号：US15919651

申请日：2018-03-13

Applicant: CLEARSIGN COMBUSTION CORPORATION

Inventor： Douglas W. Karkow

IPC: F23D14/14 ,  F23Q9/00 ,  F23D14/56 ,  F23D23/00 ,  F23N5/08

Abstract: A combustion system includes a perforated flame holder configured to hold a main combustion reaction substantially between input and output faces thereof. A main fuel nozzle is positioned to emit a main fuel stream toward the input face. An igniter assembly is configured to ignite a preheat flame supported by the main fuel stream between the main fuel nozzle and the perforated flame holder, and to selectably control a degree of ignition of the fuel stream by the preheat flame. During a start-up of the combustion system, the perforated flame holder is preheated by the preheat flame. When the perforated flame holder reaches a start-up temperature, the preheat flame is shifted from fully igniting to partially igniting the fuel stream, allowing fuel and oxidant to reach the perforated flame holder. A flame is ignited in the perforated flame holder while the preheat flame burns. The preheat flame is then released.

公开(公告)号：US09447965B2

公开(公告)日：2016-09-20

申请号：US14741293

申请日：2015-06-16

Applicant: ClearSign Combustion Corporation

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

IPC: F23D9/00 ,  F23C99/00 ,  F23N5/26 ,  F27D11/06 ,  F23D14/24 ,  F23D14/84 ,  F23N5/00 ,  F23N1/00 ,  F23D14/02 ,  F23D14/74 ,  F23D14/14 ,  F23D11/44 ,  F23D11/02 ,  F23D11/38 ,  F23D11/40 ,  F23L7/00 ,  F23C6/04 ,  F23C9/06 ,  F23D14/26 ,  F23N1/02

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).

Abstract translation: 诸如炉子或锅炉的燃烧系统包括被配置成保持产生非常低的氮氧化物（NOx）的燃烧反应的穿孔反应保持器。

公开(公告)号：US11221137B2

公开(公告)日：2022-01-11

申请号：US16558853

申请日：2019-09-03

Applicant: ClearSign Combustion Corporation

Inventor： Jonathan Bucher ,  Donald Kendrick ,  James K. Dansie ,  Douglas W. Karkow

IPC: F23D14/26 ,  F23D14/58 ,  F23D14/70 ,  F27D1/00 ,  F27D1/18

Abstract: A flame holder system includes a support structure configured to support a plurality of burner tiles within a furnace volume. The support structure includes a frame supporting a support lattice. A number of burner tiles are arranged in an array on the support lattice. The support structure is configured to be assemblable without tools inside the furnace volume, using components that are sized to fit through an access port in a wall of the furnace.

公开(公告)号：US11047572B2

公开(公告)日：2021-06-29

申请号：US14652773

申请日：2014-09-23

Applicant: ClearSign Combustion Corporation

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

IPC: F23C3/00 ,  F23D14/66 ,  F23D14/64 ,  F23L15/04 ,  F23D14/70 ,  F23D14/82 ,  F23D14/14 ,  F23D14/74

Abstract: A burner includes a porous flame holder configured to support a combustion reaction to achieve a very low output of oxides of nitrogen (NOx).

公开(公告)号：US10514165B2

公开(公告)日：2019-12-24

申请号：US15637820

申请日：2017-06-29

Applicant: CLEARSIGN COMBUSTION CORPORATION

Inventor： Douglas W. Karkow ,  Joseph Colannino ,  James K. Dansie ,  Jesse Dumas ,  Christopher A. Wiklof

IPC: F23D1/00 ,  F23C99/00

Abstract: A burner system that employs a perforated flame holder and is configured to combust a powdered solid fuel includes a structure configured to protect the perforated flame holder from erosion caused by particles of the solid fuel.

公开(公告)号：US10359213B2

公开(公告)日：2019-07-23

申请号：US15215401

申请日：2016-07-20

Applicant: CLEARSIGN COMBUSTION CORPORATION

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

IPC: F22B9/12 ,  F24H1/20 ,  F23M9/06 ,  F24H1/26 ,  F24H1/28 ,  F24H9/00 ,  F23D14/14 ,  F24H9/18

Abstract: A fire tube boiler includes a perforated flame holder configured to hold a combustion reaction that produces very low oxides of nitrogen (NOx).

公开(公告)号：US10156356B2

公开(公告)日：2018-12-18

申请号：US15132807

申请日：2016-04-19

Applicant: ClearSign Combustion Corporation

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

IPC: F23C5/00 ,  F23N1/02 ,  F23C99/00 ,  F23N5/08

Abstract: A combustion system includes a perforated flame holder, a camera, and a control circuit. The perforated flame holder sustains a combustion reaction within the perforated flame holder. The image capture device takes a plurality of images of the combustion reaction. The control circuit produces from the images an averaged image and adjusts the combustion reaction based on the adjusted image.

公开(公告)号：US10125983B2

公开(公告)日：2018-11-13

申请号：US15235517

申请日：2016-08-12

Applicant: CLEARSIGN COMBUSTION CORPORATION

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

IPC: F23D14/04 ,  F23D14/70 ,  F23N5/02 ,  F23D14/14

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.

公开(公告)号：US10125979B2

公开(公告)日：2018-11-13

申请号：US14787144

申请日：2014-05-12

Applicant: ClearSign Combustion Corporation

Inventor： Joseph Colannino ,  Douglas W. Karkow

IPC: F23C99/00 ,  F23Q7/22 ,  F23Q3/00 ,  F23N5/20 ,  F23N5/24

Abstract: A combustion system includes a combustion fluid charge source and a start-up flame holder configured to attract the charge and hold a flame when the combustion system is cool and allow the flame to lift when the combustion system is warmed up.