公开(公告)号：US11248786B2

公开(公告)日：2022-02-15

申请号：US16728548

申请日：2019-12-27

Applicant: CLEARSIGN TECHNOLOGIES CORPORATION

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

IPC: F23D11/44 ,  F23N5/24 ,  F23N5/02 ,  F23D14/14 ,  F23D14/72 ,  F23D14/26 ,  F23D9/00 ,  F23D11/38

Abstract: A method for a combustion system includes outputting fuel from an adjustable-position fuel nozzle onto a perforated flame holder, the fuel being directed for mixture with an oxidant en route to the perforated flame holder. A combustion reaction of the fuel and the oxidant is supported within the perforated flame holder. A position of the adjustable-position fuel nozzle may be changed relative to the flame holder. A first flow of fuel may be output when the adjustable position fuel nozzle is in an extended state, and a second flow of fuel may be output when the adjustable-position fuel nozzle is in a retracted state.

公开(公告)号：US11953199B2

公开(公告)日：2024-04-09

申请号：US17658248

申请日：2022-04-06

Applicant: CLEARSIGN TECHNOLOGIES CORPORATION

Inventor： James K. Dansie ,  Douglas W. Karkow ,  Jesse Dumas ,  Donald Kendrick ,  Sunny Karnani ,  Christopher A. Wiklof

IPC: F23D11/40 ,  F23D14/14 ,  F23D14/70 ,  F23M9/06

CPC classification number: F23D11/406 ,  F23D14/14 ,  F23D14/145 ,  F23D14/70 ,  F23M9/06 ,  F23C2203/10 ,  F23C2203/20 ,  F23D2203/102 ,  F23D2203/104 ,  Y02E20/30

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.

公开(公告)号：US10578301B2

公开(公告)日：2020-03-03

申请号：US15663458

申请日：2017-07-28

Applicant: CLEARSIGN TECHNOLOGIES CORPORATION

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

IPC: F23D11/44 ,  F23D9/00 ,  F23D11/38

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.