Control system for the ignition of a gas burner
AssigneeCoprecitec, S.L.
InventorsFélix Querejeta Andueza, Gonzalo José Fernández Llona, José Ignacio Múgica Odriozola, Francisco Javier Echenausia Saez de Zaitegui
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Abstract
A control system for the ignition of a gas burner that includes an electromagnetic valve having a first coil and a second coil, the activation of the first and second coils controlling the flow of gas through the electromagnetic valve. An incandescent element which is designed to be heated until it reaches the gas combustion temperature of the gas delivered to the burner is disposed electrically in series with the first coil, the incandescent element and first coil forming a first branch that is electrically parallel to the second coil.
Claims38
A control system for the ignition of a gas burner comprising:
- an electromagnetic valve having an open position and a closed position for controlling the flow of a gas to the burner, the electromagnetic valve having a first coil and a second coil, the electromagnetic valve configured to assume the open position to permit the flow of gas through the electromagnetic valve to the burner when a current that passes through the first coil reaches a first predetermined amount and when a current that passes through the second coil reaches a second predetermined amount, the first coil configured to hold the electromagnetic valve in the open position by itself after the electromagnetic valve has assumed the open position;
- and
- at least one incandescent element for igniting the gas burner when the incandescent element reaches a combustion temperature of the gas, the incandescent element being disposed electrically in series with the first coil, the first coil and incandescent element forming a first branch that is electrically parallel to the second coil.
A method for controlling the gas flow to a burner through an electromagnetic valve having a normally closed position and an open position, the electromagnetic valve having a first coil and a second coil that control the position of the electromagnetic valve, the first coil is configured to hold the electromagnetic valve in the open position by itself once the electromagnetic valve assumes the open position, the first coil being disposed electrically in series with an incandescent element that is positioned to ignite the burner when the temperature of the incandescent element reaches a combustion temperature of the gas delivered to the burner, the first coil and incandescent element forming a first branch that is electrically parallel to the second coil, the method comprising:
- delivering a first current through the first branch comprising the first coil and the incandescent element in series to provide power to the first coil and to cause the incandescent element to heat;
- subsequently delivering a second current to the second coil electrically parallel to the first branch to cause the electromagnetic valve to open;
- and
- terminating the flow of the second current to the second coil once the electromagnetic valve has assumed the open position.
A control system for the ignition of a gas burner comprising:
- an electromagnetic valve having an open position and a closed position for controlling the flow of a gas to the burner, the electromagnetic valve having a first coil and a second coil, the electromagnetic valve configured to assume the open position to permit the flow of gas through the electromagnetic valve to the burner when a current that passes through the first coil reaches a first predetermined amount and when a current that passes through the second coil reaches a second predetermined amount;
- at least one incandescent element for igniting the gas burner when the incandescent element reaches a combustion temperature of the gas, the incandescent element being disposed electrically in series with the first coil, the first coil and incandescent element forming a first branch that is electrically parallel to the second coil;
- and
- a switch disposed electrically in series with the second coil, the switch and second coil forming a second branch that is electrically parallel to the first branch, the switch configured to control the flow of current through the second coil.
A method for controlling the gas flow to a burner through an electromagnetic valve having a normally closed position and an open position, the electromagnetic valve having a first coil and a second coil that control the position of the electromagnetic valve, the first coil is configured to hold the electromagnetic valve in the open position by itself once the electromagnetic valve assumes the open position, the first coil being disposed electrically in series with an incandescent element that is positioned to ignite the burner when the temperature of the incandescent element reaches a combustion temperature of the gas delivered to the burner, the first coil and incandescent element forming a first branch that is electrically parallel to the second coil, the method comprising:
- delivering a first current through the first branch comprising the first coil and the incandescent element in series to provide power to the first coil and to cause the incandescent element to heat;
- and
- subsequently delivering a second current to the second coil electrically parallel to the first branch to cause the electromagnetic valve to open, the second current being delivered to the second coil only for an amount of time sufficient to open the electromagnetic valve;
- subsequently holding the electromagnetic valve open with the first coil only.
Dependencies are inferred from the claim text.