Method for operating a gas burner
AssigneeHoneywell International Inc.
InventorPiet Blaauwwiekel
Life of this patent
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Abstract
According to the invention, the ionization signal is detected at a first point of time during full-load operation and during partial-load operation, and for this first point of time a first difference is formed between the ionization signal during full-load operation and the ionization signal during partial-load operation. Furthermore, the ionization signal is detected at a second point of time during full-load operation and during partial-load operation, and for this second point of time a second difference is formed between the ionization signal during full-load operation and the ionization signal during partial-load operation. The first difference and the second difference are compared to each other and, dependent thereon, the state of the gas burner is inferred.
Claims19
A method for operating a gas burner using an ionization sensor supplying an ionization signal that is representative of a condition of operation of the gas burner, the method comprising:
- during a first time period, detecting an ionization signal during full-load operation of the gas burner and detecting another ionization signal during a partial-load operation of the gas burner, the detected ionization signals having a first difference in signal;
- during a second time period that is different than the first time period, detecting an ionization signal during full-load operation of the gas burner and detecting another ionization signal during a partial-load operation of the gas burner, the detected ionization signals having a second difference in signal;
- and
- determining a condition of operation of the gas burner as a function of a comparison of the first difference in signal with the second difference in signal.
A method for operating a gas burner arrangement including a gas burner, the method comprising:
- providing an ionization sensor configured and arranged to generate an ionization signal that is representative of a condition of operation of the gas burner;
- during a plurality of time periods, detecting ionization signals from the ionization sensor during full-load and partial-load operation of the gas burner;
- for each time period, determining a difference between the ionization signals at full-load and partial-load operation;
- and
- determining a condition of operation of the gas burner as a function of a deviation, for successive time periods, in determined differences in ionization signals at full-load and partial-load operation.
A method for detecting a condition of operation of an ionization sensor adapted to supply an ionization signal that is representative of a condition of operation of a gas burner, the method comprising:
- during first and second time periods, detecting ionization signals from the ionization sensor during full-load and partial-load operation of the gas burner;
- for each time period, determining a difference between the ionization signals at full-load and partial-load operation;
- and
- determining a condition of operation of the ionization sensor as a function of a deviation in the determined differences in ionization signals at full-load and partial-load operation between each time period.
Dependencies are inferred from the claim text.