System, apparatus and method for controlling ignition including re-ignition of gas and gas fired appliances using same
First Claim
1. A gas control system that controls energizing an electric resistance igniter from a power source, said control system comprising:
- a control device being configured and arranged so as to control operation of the electric resistance igniter;
wherein the control device is configured and arranged so as to warm-up the electric resistance igniter to temperature at or above an ignition temperature for a gas being combusted; and
wherein the control device also is configured and arranged so that following successful ignition of the gas, operation of the electric resistance igniter is controlled so the electric resistance igniter is at a temperature less than the gas ignition temperature and so the electric resistance igniter can be re-heated so as to re-ignite the gas within a desired re-ignition time period.
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Accused Products
Abstract
Featured is a gas control device being configured and arranged so as to control operation of a hot surface igniter so it is warmed-up to ignition temperatures of a gas when a call for heat is made and, following ignition, to control operation of the igniter so it is capable of rapidly re-igniting the gas without having to continuously maintain the igniter at or above gas ignition temperatures. More particularly, the gas control device includes circuitry that controls energization of the igniter for ignition of the gas and, after ignition of the gas is determined to have occurred, controls energization of the igniter so that the igniter can be warmed up to ignition temperature conditions within desired re-ignition time periods. Also featured are systems and apparatuses embodying such control devices as well as methods related thereto.
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Citations
13 Claims
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1. A gas control system that controls energizing an electric resistance igniter from a power source, said control system comprising:
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a control device being configured and arranged so as to control operation of the electric resistance igniter;
wherein the control device is configured and arranged so as to warm-up the electric resistance igniter to temperature at or above an ignition temperature for a gas being combusted; and
wherein the control device also is configured and arranged so that following successful ignition of the gas, operation of the electric resistance igniter is controlled so the electric resistance igniter is at a temperature less than the gas ignition temperature and so the electric resistance igniter can be re-heated so as to re-ignite the gas within a desired re-ignition time period. - View Dependent Claims (2, 3, 4, 5)
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6. A gas control system that controls energizing an electric resistance igniter from a power source and that controls operation of one or more gas control valves, which valves control the flow of gas for combustion, said gas control system comprising:
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a control device being operably coupled between the electric resistance igniter and the power source and being operably connected to the one or more gas valves;
wherein the control device is configured and arranged to selectively apply a voltage to the electric resistance igniter responsive to an input signal calling for heat; and
wherein the control device is configured and arranged;
so the electric resistance igniter is heated by the selectively applied voltage so as to be at a temperature at or above a temperature for igniting the gas, a gas ignition temperature, such that upon determining that the electric resistance igniter has been heated to the gas ignition temperature, the one or more gas valves are opened, and such that upon determining that the gas has been successfully ignited, the voltage being applied to the electric resistance igniter is controlled so as to maintain the electric resistance igniter at an operational temperature that is less than the gas ignition temperature. - View Dependent Claims (7)
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8. An ignition system comprising:
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a control device that can control operation of an electric resistance igniter;
wherein the control device is configured to (i) heat the igniter to temperature at or above an ignition temperature for a gas being combusted; and
(ii) following successful ignition of the gas, to control operation of the igniter so the igniter is at a temperature less than the gas ignition temperature and so the electric resistance igniter can be re-heated so as to re-ignite the gas within a desired re-ignition time period. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification