Gas burner equipment for water heater has pilot light control with air inlet orifice connected to tube with free orifice under burner and pilot flame temperature detector coupled to gas burner supply cut off valve

摘要

The gas burner (4) is in the bottom part of the equipment and near to an underlying surface (6). There is an atmosphere pilot light control temperature detector (12) connected to the gas burner supply with a primary air inlet orifice to which is connected a tube (10) whose free orifice (11) is located under the gas burner. The pilot flame (15) temperature detector is coupled to the burner gas supply cut off valve (14). An Independent claim is included for a water gas heater.