公开(公告)号：US12007301B2

公开(公告)日：2024-06-11

申请号：US17135517

申请日：2020-12-28

Applicant: ClearSign Technologies Corporation

Inventor： Robert Geiger ,  Jackson Matthew Pleis ,  Donald Kendrick ,  Christopher A. Wiklof

IPC: G01M15/14 ,  F23D11/40 ,  F23D14/14 ,  F23N1/02 ,  F23N5/02 ,  F23N5/12 ,  F23N5/18 ,  G01N33/00

CPC classification number: G01M15/14 ,  F23D11/406 ,  F23D14/145 ,  F23N1/022 ,  F23N5/022 ,  F23N5/123 ,  F23N5/184 ,  G01N33/0027 ,  G01N33/0062 ,  G01N33/0073 ,  F23D2208/10 ,  F23D2212/103 ,  F23N2237/26

Abstract: A system for measuring a fuel-oxidant equivalence ratio includes at least one wall defining a gas volume including fuel and air. A gas ionization source is configured to cause a formation of ions in the gas. A power supply is configured to output a time-varying voltage. A first electrode is disposed in the gas volume, operatively coupled to the power supply, and configured to carry the time-varying voltage. A second electrode is arranged to operatively couple to a signal output by the first electrode after the signal passes through the gas volume. Characteristics of the received signal indicate the fuel-oxidant equivalence ratio.

公开(公告)号：US12050151B2

公开(公告)日：2024-07-30

申请号：US17135884

申请日：2020-12-28

Applicant: ClearSign Technologies Corporation

Inventor： Robert Geiger ,  Jackson Matthew Pleis ,  Donald Kendrick ,  Christopher A. Wiklof

IPC: F23N1/02 ,  F23D11/40 ,  F23D14/14 ,  F23N5/02 ,  F23N5/12 ,  F23N5/18 ,  G01M15/14 ,  G01N33/00

CPC classification number: G01M15/14 ,  F23D11/406 ,  F23D14/145 ,  F23N1/022 ,  F23N5/022 ,  F23N5/123 ,  F23N5/184 ,  G01N33/0027 ,  G01N33/0062 ,  G01N33/0073 ,  F23D2208/10 ,  F23D2212/103 ,  F23N2237/26

Abstract: A burner includes a flame sensor configured to detect at least one of permittivity, capacitance, or resistance across a flame region. The permittivity, capacitance, or resistance is used to determine the presence or absence of the flame in a combustion system. A combustion system supports a combustion reaction. The combustion system utilizes a combustion sensor, and optionally a plasma generator to stabilize the combustion reaction. A controller receives sensor signals from the combustion sensor and controls the plasma generator to stabilize the combustion reaction responsive to the sensor signals. The plasma generator stabilizes the combustion reaction by generating a plasma.