Fagor, S. Coop

Coprecitec, S.l.

Gonzalo Fernández

Iñaki Ayastuy

Jose Ignacio Mugica

José Miguel Amoriza

Eneko Muguerza

Eider Landa

'Control system for a gas cooking device or any other gas device comprising at least one gas burner () and, for each gas burner (), an electromagnetic valve () to open or cut off the gas flow to the gas burner (), said electromagnetic valve () comprising magnetic means () to keep the gas flow open, and an actuator () that is operated manually so that it acts on the magnetic means () of the electromagnetic valve (), thereby opening the gas flow. The control system () generates a current signal (I) that circulates through the magnetic means () of the electromagnetic valve () and detects when the actuator () is operated in accordance with the change in magnetic reluctance of said magnetic means ().'

Control system for a gas cooking device

Failsafe control circuit for electrical appliances whereby at least one electrical load () is activated, the control circuit comprising logic control means (), operation switching means () between said electrical load () and a supply voltage (V), and a first drive circuit () which receives a first command signal () from the logic control means (), said first drive circuit () acting on said operation switching means (). It also comprises security switching means () between the electrical load () and the supply voltage (V), and a second drive circuit () which receives a second command signal () from the logic control means (), said second drive circuit () acting on the security switching means () so that it closes said security switching means () only if said second command signal () is a pulse signal.

Failsafe control circuit for electrical appliances

The system () for controlling the combustion () of a cooking oven burner (), comprises in combination a thermostat valve () with a rotary hand knob () and a non-electric temperature sensor () for modulating the burner flame (), and an electromagnetic safety valve kept open for ignition, and a electronic module () supplying in a first moment a DC power supply to the safety valve (), which is then maintained open by a thermocouple () heated by the main flame (). A common electrode () is provided both for electronic flame detection and ignition. During the burner pre-ignition step, the absence of flame detection signal (If) permits the gas flow (G) to be cut off after a short timed interval, irrespective of the thermocouple response. In the event of the AC power supply being cut off, the thermocouple () and the thermostat valve () keep the burner modulated independently.

Growing community of inventors

Elorrio, Spain

Gonzalo Fernández