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US 12,655,974 B2Granted
Flame monitoring device for a gas burner appliance and gas burner appliance
AssigneePittway Sarl
InventorUwe Deptolla
Life of this patent
Estimating the term…
Abstract
Flame monitoring device (23) for a gas burner appliance (10), the gas burner appliance (10) being configured to burn a combustible gas, the combustion of the combustible gas resulting into a flame (12), comprising a flame supervision device (24) providing as measurement signal an electrical voltage signal depending on the presence of the flame (12), and an electronic circuit (25) converting the electrical voltage signal provided by the flame supervision device (24) into an electrical current signal.
Claims11
A flame monitoring device comprising:
- a flame supervision device positioned in a gas burner appliance;
- wherein the gas burner appliance is configured to combust a combustible gas in a gas burner chamber;
- wherein combusting the combustible gas produces non-ionized flame;
- wherein the flame supervision device is configured to produce a measurement signal comprising an electrical voltage signal representative of a presence of the non-ionized flame;
- and
- an electronic circuit configured to convert the electrical voltage signal provided into an electrical current signal;
- wherein the electronic circuit is configured to output the electrical current signal to be compatible with a controller configured to control the gas burner appliance based on the electrical current signal being indicative of flame ionization,
- wherein the electronic circuit comprises:
- a comparator comparing the electrical voltage signal provided by the flame supervision device with a nominal value to determine if a flame is present or not present;
- and
- a converter converting the electrical voltage signal provided by the flame supervision device into the electrical current signal;
- wherein the comparator has a first input terminal connected to the flame supervision device, a second input terminal at which the nominal value is present and an output terminal;
- wherein the converter has an input terminal connected to the output terminal of the comparator and an output terminal;
- wherein the converter comprises:
- a second comparator with a first input terminal providing the input terminal of the converter, a second input terminal and an output terminal;
- and
- a first electrical resistor and a second electrical resistor connected in series to the output terminal of the second comparator;
- wherein the second input terminal of the second comparator and the output terminal of the converter are both connected to a terminal provided between the first electrical resistor and the second electrical resistor.
15 more elements
A flame monitoring system comprising:
- a conversion kit for a gas burner appliance;
- wherein the gas burner appliance comprises a flame ionization sensor and a controller;
- wherein the flame ionization sensor is configured to produce a flame ionization current based on a presence of ions of a flame;
- wherein the controller is configured detect the flame in a gas burner chamber based at least in part on the flame ionization current;
- wherein the conversion kit comprises:
- a flame supervision device positioned in a gas burner appliance;
- wherein the gas burner appliance is configured to combust a combustible gas in a gas burner chamber;
- wherein combusting the combustible gas produces non-ionized flame;
- wherein the flame supervision device is configured to produce a measurement signal comprising an electrical voltage signal representative of a presence of the non-ionized flame;
- and
- an electronic circuit configured to convert the electrical voltage signal provided into an electrical current signal;
- wherein the electronic circuit is configured to output the electrical current signal to be compatible with a controller configured to control the gas burner appliance based on the electrical current signal being indicative of flame ionization,
- wherein the electronic circuit comprises:
- a comparator comparing the electrical voltage signal provided by the flame supervision device with a nominal value to determine if a flame is present or not present;
- and
- a converter converting the electrical voltage signal provided by the flame supervision device into the electrical current signal;
- wherein the comparator has a first input terminal connected to the flame supervision device, a second input terminal at which the nominal value is present and an output terminal;
- wherein the converter has an input terminal connected to the output terminal of the comparator and an output terminal;
- wherein the converter comprises:
- a second comparator with a first input terminal providing the input terminal of the converter, a second input terminal and an output terminal;
- and
- a first electrical resistor and a second electrical resistor connected in series to the output terminal of the second comparator;
- wherein the second input terminal of the second comparator and the output terminal of the converter are both connected to a terminal provided between the first electrical resistor and the second electrical resistor.
20 more elements
A gas burner appliance, comprising:
- a gas burner chamber configured for burning a combustible gas, the combustion of the combustible gas resulting into a flame;
- a flame supervision device positioned in a gas burner appliance;
- wherein the gas burner appliance is configured to combust a combustible gas in the gas burner chamber;
- wherein combusting the combustible gas produces non-ionized flame;
- wherein the flame supervision device is configured to produce a measurement signal comprising an electrical voltage signal representative of a presence of the non-ionized flame;
- an electronic circuit configured to convert the electrical voltage signal provided into an electrical current signal;
- wherein the electronic circuit is configured to output the electrical current signal to be compatible with a controller configured to control the gas burner appliance based on the electrical current signal being indicative of flame ionization;
- and
- the controller configured to control operation of the gas burner appliance based on the electrical current signal being indicative of flame ionization,
- wherein the electronic circuit comprises:
- a comparator comparing the electrical voltage signal provided by the flame supervision device with a nominal value to determine if a flame is present or not present;
- and
- a converter converting the electrical voltage signal provided by the flame supervision device into the electrical current signal;
- wherein the comparator has a first input terminal connected to the flame supervision device, a second input terminal at which the nominal value is present and an output terminal;
- wherein the converter has an input terminal connected to the output terminal of the comparator and an output terminal;
- wherein the converter comprises:
- a second comparator with a first input terminal providing the input terminal of the converter, a second input terminal and an output terminal;
- and
- a first electrical resistor and a second electrical resistor connected in series to the output terminal of the second comparator;
- wherein the second input terminal of the second comparator and the output terminal of the converter are both connected to a terminal provided between the first electrical resistor and the second electrical resistor.
17 more elements
Dependencies are inferred from the claim text.