Systems and methods for avoiding harmonic modes of gas burners
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United States of America Patent
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Jul 21, 2020
Grant Date -
May 30, 2019
app pub date -
Nov 30, 2017
filing date -
Nov 30, 2017
priority date (Note) -
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Abstract
A gas burner system has a gas burner with a conduit through which an air-gas mixture is conducted; a variable-speed forced-air device that forces air through the conduit; a control valve that controls a supply of gas for mixture with the air to thereby form the air-gas mixture; and an electrode configured to ignite the air-gas mixture so as to produce a flame. The electrode is further configured to measure a flame ionization current associated with the flame. A controller is configured to actively control the variable-speed forced-air device based on the flame ionization current measured by the electrode so as to automatically avoid a flame harmonic mode of the gas burner. Corresponding methods are provided.
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