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公开(公告)号:US10539326B2
公开(公告)日:2020-01-21
申请号:US15667565
申请日:2017-08-02
Applicant: CLEARSIGN COMBUSTION CORPORATION
Inventor: Douglas W. Karkow , Robert E. Breidenthal , Joseph Colannino , Christopher A. Wiklof
Abstract: A combustion system includes a perforated reaction holder having perforations defined to compensate for a non-uniform velocity of fuel and/or oxidant received across an input face of the perforated reaction holder.
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公开(公告)号:US20200003411A1
公开(公告)日:2020-01-02
申请号:US16540449
申请日:2019-08-14
Applicant: ClearSign Combustion Corporation
Inventor: CHRISTOPHER A. WIKLOF
Abstract: A combustion system includes an ionizer configured to eject charges (or accept charges) for uptake by a combustion reaction to cause a combustion reaction to carry a majority charge or voltage. The ionizer includes an inner electrode, a dielectric body surrounding the inner electrode, and one or more conductive or semi-conductive inner electrodes disposed on the surface of the dielectric body. The inner and outer electrodes are configured to be in a capacitive relationship.
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公开(公告)号:US20190368723A1
公开(公告)日:2019-12-05
申请号:US16444420
申请日:2019-06-18
Applicant: ClearSign Combustion Corporation
Inventor: DONALD KENDRICK , DOUGLAS W. KARKOW , VENKATESH IYER , JAMES K. DANSIE , JONATHAN BUCHER , AARON SALZBRUN , CHRISTOPHER J. LEE
Abstract: According to an embodiment, a fired heater includes a fuel and combustion air source configured to output fuel and combustion air into a combustion volume, the combustion volume including a combustion volume wall defining a lateral extent separate from an exterior volume. According to an embodiment, the fired heater includes a boiler heater and the combustion volume wall comprises a combustion pipe defining a lateral extent of the combustion volume, the combustion pipe being disposed to separate the combustion volume from a water and steam volume. The fired heater includes a mixing tube aligned to receive the fuel and combustion air from the fuel and combustion air source. The mixing tube may be separated from the combustion volume wall by a separation volume. The fired heater includes a bluff body flame holder aligned to receive a fuel and combustion air mixture from an outlet end of the mixing tube. The bluff body flame holder may be configured to hold a combustion reaction for heating a combustion volume wall. The combustion volume wall may include a combustion pipe. The combustion pipe may be configured to heat the water in the water and steam volume.
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公开(公告)号:US20190257516A1
公开(公告)日:2019-08-22
申请号:US16279032
申请日:2019-02-19
Applicant: ClearSign Combustion Corporation
Inventor: DOUGLAS W. KARKOW , DONALD KENDRICK , JOSEPH COLANNINO , JESSE DUMAS , JONATHAN P. DEES , JAMES K. DANSIE , CHRISTOPHER A. WIKLOF
Abstract: A furnace includes a perforated flame holder formed from an array of tiles. The perforated flame holder is stabilized by a support member extending between at least adjacent tiles. Elongated support members may be positioned to extend through each of the tiles in a respective column of the array of tiles.
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公开(公告)号:US10386062B2
公开(公告)日:2019-08-20
申请号:US15235634
申请日:2016-08-12
Applicant: CLEARSIGN COMBUSTION CORPORATION
Inventor: Douglas W. Karkow , Joseph Colannino , Christopher A. Wiklof
Abstract: A method for operating a combustion system includes outputting fuel and oxidant from a fuel and oxidant source onto a perforated flame holder. The method further includes sustaining a combustion reaction of the fuel and oxidant within the perforated flame holder.
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156.
公开(公告)号:US10364984B2
公开(公告)日:2019-07-30
申请号:US14167875
申请日:2014-01-29
Applicant: ClearSign Combustion Corporation
Abstract: Embodiments of the invention are directed to a burner system including at least one Coanda surface and at least two electrodes that are biased in a manner to influences a location of fuel flow relative to the at least one Coanda surface and related methods. In an embodiment, a burner system includes at least one Coanda surface, at least one nozzle positioned and configured to emit a fuel flow at least proximate to the at least one Coanda surface, at least two electrodes, and a voltage source operably coupled to the at least two electrodes. The voltage source may be configured to bias the at least two electrodes to generate an electric field at least proximate to the at least one Coanda surface that influences a location of the fuel flow and/or a flame relative to the at least one Coanda surface.
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公开(公告)号:US10364980B2
公开(公告)日:2019-07-30
申请号:US15073986
申请日:2016-03-18
Applicant: ClearSign Combustion Corporation
Inventor: Joseph Colannino , David B. Goodson , Igor A. Krichtafovitch , Tracy A. Prevo , Christopher A. Wiklof
Abstract: Technologies are described for applying electrical energy according to a physical extent of a combustion reaction, which may include: supporting a combustion reaction at a fuel source; sensing a physical extent of the combustion reaction with respect to a plurality of different locations of a plurality of electrodes; and applying electrical energy to the combustion reaction via at least one of the plurality of electrodes responsive to the physical extent of the combustion reaction. Sensing the physical extent of the combustion reaction may include receiving a sensor signal corresponding to the physical extent of the combustion reaction.
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公开(公告)号:US10295175B2
公开(公告)日:2019-05-21
申请号:US15069268
申请日:2016-03-14
Applicant: ClearSign Combustion Corporation
Inventor: Joseph Colannino , Richard F. Rutkowski , Igor A. Krichtafovitch , David B. Goodson , Christopher A. Wiklof
Abstract: Technologies are provided for applying energy to a combustion reaction. For example, a method may include supporting a combustion reaction; applying energy to the combustion reaction via one or more control signals; detecting a change in one or more parameters associated with the combustion reaction; comparing the change in the one or more parameters to a database; determining whether the change in the one or more parameters corresponds to a change in the combustion reaction; selecting a change in the one or more control signals from the database; and applying the change in the one or more control signals to change the a value of the energy applied to the combustion reaction responsive to changes in the one or more parameters associated with in the combustion reaction.
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159.
公开(公告)号:US10281141B2
公开(公告)日:2019-05-07
申请号:US15615328
申请日:2017-06-06
Applicant: CLEARSIGN COMBUSTION CORPORATION
Inventor: Igor A. Krichtafovitch , Christopher A. Wiklof
Abstract: A system and method for electrically controlling a position of a combustion reaction and/or for protecting a flame controller by decoupling an ionizer from a power supply.
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公开(公告)号:US20190113224A1
公开(公告)日:2019-04-18
申请号:US16217913
申请日:2018-12-12
Applicant: CLEARSIGN COMBUSTION CORPORATION
Inventor: DOUGLAS W. KARKOW , CHRISTOPHER A. WIKLOF
Abstract: A combustion fluid flow barrier includes an aperture to control combustion fluid flow. The combustion fluid is charged by a charge generator. The combustion fluid flow barrier includes at least one flow control electrode operatively coupled to the aperture and configured to selectively allow, attract, or resist passage of the charged combustion fluid through the aperture, depending on voltage applied to the flow control electrode.
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