Control system for the ignition of a gas burner

摘要

A control system for the ignition of a gas burner that include 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 ignition 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 ignition element and first coil forming a branch. The control system also includes an auxiliary electromagnetic valve with a coil, the activation of the coil controlling the flow of gas through the auxiliary electromagnetic valve. The flow of gas towards the burner is allowed when both the electromagnetic valve and the auxiliary electromagnetic valve are open.

主权项

1. 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 a 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 ignition element for igniting the gas burner when the ignition element reaches a combustion temperature of the gas, the ignition element being disposed electrically in series with the first coil, the first coil and ignition element forming a first branch; an auxiliary electromagnetic valve having an open position and a closed position for controlling the flow of a gas to the burner, the auxiliary electromagnetic valve having a coil and being configured to assume the open position to permit the flow of gas through the auxiliary electromagnetic valve to the burner when a current that passes through the coil of the auxiliary electromagnetic valve reaches a third predetermined amount, the flow of gas towards the burner being allowed when both the electromagnetic valve and the auxiliary electromagnetic valve are open; and a switch located between the second coil of the electromagnetic valve and the coil of the auxiliary electromagnetic valve, the switch adapted to cause the second coil of the electromagnetic valve to be electrically in parallel to the first branch in a first position, or to cause the coil of the auxiliary electromagnetic valve to be electrically in parallel to the first branch in a second position.