NEW METHOD FOR CONTROLLING AND MODULATING THE GAS FLOW ALLOWING INSTANTANEOUS GAS WATER HEATERS OF THE TYPE WITHOUT PERMANENT PILOT LIGHT AND WITHOUT BATTERY, TO OPERATE IN VARIABLE POWER PROPORTIONAL TO FLOW RATE OR WITH THERMOSTATIC REGULATION

摘要

THE PRESENT INVENTION APPLIES TO WATER HEATERS WHICH INCLUDE ON THE ONE HAND, A MICROTURBO-ALTERNATOR 10 GENERATING AN ALTERNATING CURRENT WHEN THROUGH THROUGH WATER, AND ON THE OTHER HAND, AN ELECTRODYNAMIC MICRO-ELECTROVALVE 30 WITH A MOBILE COIL 29 CAPABLE OF OPENING AND CLOSING THE PILOT CIRCUIT OF A PNEUMATIC VALVE WITH MEMBRANE 33 AT THE FREQUENCY OF THIS ALTERNATING CURRENT. FOLLOWING THIS NEW PROCESS, THE POLARITY OF THE ALTERNATIONS OF THE CURRENT PRODUCED BY THE MICROTURBO-ALTERNATOR 10 IS FIRST UNIFIED THEN ONE-POLE ALTERNATIONS ARE TRANSMITTED TO THE MICRO-ELECTROVALVE 30 THROUGH AN ELECTRONIC CONTROL CIRCUIT 15 WHICH SERVES THE AMPLITUDE OF THESE ALTERNATIONS ON THE ONE HAND THE PRESENCE OF A LIGHT FLAME ON THE IGNITION PILOT 22 THANKS TO THE PHOTORESISTENT CELL 16, AND ON THE OTHER HAND THE HOT WATER TEMPERATURE MEASURED BY THE RESISTIVE SENSOR 40.