公开(公告)号：US10240788B2

公开(公告)日：2019-03-26

申请号：US16104587

申请日：2018-08-17

Applicant: ClearSign Combustion Corporation

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

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

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

公开(公告)号：US20190011124A1

公开(公告)日：2019-01-10

申请号：US16130102

申请日：2018-09-13

Applicant: ClearSign Combustion Corporation

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

IPC: F23D14/14 ,  B01J19/00 ,  F23D14/26

Abstract: A cracking furnace includes a combustion volume defined in part by a burner wall having a refractory lining. A plurality of perforated flame holders is arranged in an array that is spaced away from the wall, with fuel input faces facing the wall. Each of a plurality of fuel nozzles is positioned and configured to emit a fuel stream toward the input face of a respective one of the plurality of perforated flame holders. Combustion reactions, supported by the fuel streams emitted by the fuel nozzles, and held by the flame holders, release heat, which is emitted by the flame holders as thermal (blackbody) radiation, a portion of which impinges upon, and heats the inner face of the refractory lining. Thermal radiation from the flame holders and the wall impinges upon a load positioned in the approximate center of the combustion volume, between burner walls.

公开(公告)号：US10139131B2

公开(公告)日：2018-11-27

申请号：US15857511

申请日：2017-12-28

Applicant: ClearSign Combustion Corporation

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

IPC: F24H1/20 ,  F24H1/00 ,  F24H1/18 ,  F24H9/18 ,  F23D14/02 ,  F23D14/58 ,  F23D14/64

Abstract: A water heater includes a water tank having an inlet and an outlet, and a flue extending through the tank. A nozzle is positioned near a first end of the flue, arranged so as to emit a fuel stream into the flue, and a flame holder is located within the flue in a position to receive the fuel stream and to hold a flame entirely within the flue.

公开(公告)号：US10088151B2

公开(公告)日：2018-10-02

申请号：US14966308

申请日：2015-12-11

Applicant: ClearSign Combustion Corporation

Inventor： David B. Goodson ,  Thomas S. Hartwick ,  Joseph Colannino ,  Christopher A. Wiklof

IPC: F23C99/00 ,  F23D14/84 ,  F23C5/14 ,  F23N5/26

Abstract: Gaseous particles or gas-entrained particles may be conveyed by electric fields acting on charged species included in the gaseous or gas-entrained particles.

公开(公告)号：US20180080648A1

公开(公告)日：2018-03-22

申请号：US15823419

申请日：2017-11-27

Applicant: CLEARSIGN COMBUSTION CORPORATION

Inventor： DOUGLAS W. KARKOW ,  JOSEPH COLANNINO ,  IGOR A. KRICHTAFOVITCH ,  ROBERT E. BREIDENTHAL ,  CHRISTOPHER A. WIKLOF

IPC: F23D14/14 ,  F23M5/02 ,  F23C5/08 ,  F23C99/00 ,  F23D14/84 ,  F23D14/70 ,  F23D14/74 ,  F23D14/20 ,  F23D23/00

Abstract: 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.

公开(公告)号：US09909759B2

公开(公告)日：2018-03-06

申请号：US15165573

申请日：2016-05-26

Applicant: ClearSign Combustion Corporation

Inventor： David B. Goodson ,  Tracy A. Prevo ,  Joseph Colannino ,  Robert E. Breidenthal ,  Igor A. Krichtafovitch ,  Christopher A. Wiklof

IPC: B03C3/68 ,  F23C13/00 ,  F23C13/08 ,  F23G5/12 ,  F23G5/14 ,  F23J15/02

CPC classification number: F23J15/022

Abstract: In a combustion system, a charge source is configured to cooperate with a collection plate and a director conduit to cause at least one particle charge-to-mass classification to be reintroduced to a flame for further reaction.

公开(公告)号：US20180031229A1

公开(公告)日：2018-02-01

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

CPC classification number: F23D1/00 ,  F23B2900/00006 ,  F23C99/001 ,  F23D14/70 ,  F23D2201/30 ,  F23G7/10

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：US20180003378A1

公开(公告)日：2018-01-04

申请号：US15702614

申请日：2017-09-12

Applicant: CLEARSIGN COMBUSTION CORPORATION

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

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

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：US20170350591A1

公开(公告)日：2017-12-07

申请号：US15669702

申请日：2017-08-04

Applicant: CLEARSIGN COMBUSTION CORPORATION

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

IPC: F23D14/14 ,  F23D23/00 ,  F23D14/84 ,  F23D14/70

CPC classification number: F23D14/14 ,  F23D14/70 ,  F23D14/84 ,  F23D23/00 ,  F23D2203/102 ,  F23D2203/104 ,  F23N2027/02

Abstract: A burner system includes a perforated flame holder configured to hold a combustion reaction and a plurality of fuel nozzles aligned to deliver respective fuel streams to the perforated flame holder.

公开(公告)号：US09803855B2

公开(公告)日：2017-10-31

申请号：US14763293

申请日：2014-02-14

Applicant: ClearSign Combustion Corporation

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

IPC: F23C99/00 ,  F23D14/14 ,  F23D14/20 ,  F23D14/74 ,  F23D14/70 ,  F23D14/84 ,  F23D23/00 ,  F23C5/08 ,  F23M5/02

CPC classification number: F23D14/14 ,  F23C5/08 ,  F23C99/001 ,  F23C2200/00 ,  F23D14/20 ,  F23D14/70 ,  F23D14/74 ,  F23D14/84 ,  F23D23/00 ,  F23M5/025 ,  F23N2037/02

Abstract: A burner supporting primary and secondary combustion reactions may include a primary combustion reaction actuator configured to select a location of the secondary combustion reaction. A burner may include a lifted flame holder structure configured to support a secondary combustion reaction above a partial premixing region. The secondary flame support location may be selected as a function of a turndown parameter. Selection logic may be of arbitrary complexity.